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sm64coopdx/docs/lua/functions-7.md
Agent X 19a429dbe5
Add built-in preset screen shader effects configurable through Lua (#1217) 
* C++ lighting engine

Runs better using my new system for storing and iterating through lights.

I removed the lighting ctx profiler because after I've realized its very inaccurate and was probably programmed incorrectly from the start. Although I remember it working fine before and not constantly showing 20 ms or higher when I'm in an extremely simple level with extremely simple lights and the FPS is way too high for it to be taking 20 ms.

* Whoops

* Make some optimizations

* Fix small bug with LE inside graphics vertex function

I also brought back the lighting profiler because it's better than nothing.

* Some optimizations

* Cache active lights and 4 lights per vertex limit

Less branching and less iterating with the limit

* Screen shader effects for Lua [OpenGL]

Hue, saturation, brightness, contrast, exposure, dithering, posterization

Global = usually an object in the world
Non global = usually a screen element

Also:
* Changed skyboxes to use environment color instead of vertex color, visually identical
* Changed hud head texture to be non global
* changed power meter to be non global
* changed sparkles to be global
* changed some BBH vertex types to global

OpenGL renderer supported only for now.

* Add default values and better function names

Also fixed sizes in reset function

* Add scanlines effect

* Add global enabled function

* Fix some default values

* Hopefully fix white sparkles

* Whoops

* Address review

* Update function names

* Fix shader crash

* Address reviews
2026-05-11 15:59:48 -04:00

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## [:rewind: Lua Functions](functions.md)
---
[< prev](functions-6.md) | [1](functions.md) | [2](functions-2.md) | [3](functions-3.md) | [4](functions-4.md) | [5](functions-5.md) | [6](functions-6.md) | 7]
---
# functions from smlua_gfx_utils.h
<br />
## [get_shader_flag_enabled](#get_shader_flag_enabled)
### Description
Gets if a custom shader flag (`SHADER_FLAG_*`) is enabled or not
### Lua Example
`local booleanValue = get_shader_flag_enabled(flag)`
### Parameters
| Field | Type |
| ----- | ---- |
| flag | [enum ShaderFlag](constants.md#enum-ShaderFlag) |
### Returns
- `boolean`
### C Prototype
`bool get_shader_flag_enabled(enum ShaderFlag flag);`
[:arrow_up_small:](#)
<br />
## [set_shader_flag_enabled](#set_shader_flag_enabled)
### Description
Enables a custom shader flag (`SHADER_FLAG_*`) for the renderer
### Lua Example
`set_shader_flag_enabled(flag, enabled)`
### Parameters
| Field | Type |
| ----- | ---- |
| flag | [enum ShaderFlag](constants.md#enum-ShaderFlag) |
| enabled | `boolean` |
### Returns
- None
### C Prototype
`void set_shader_flag_enabled(enum ShaderFlag flag, bool enabled);`
[:arrow_up_small:](#)
<br />
## [get_shader_flag_value](#get_shader_flag_value)
### Description
Gets a value for one of the custom shader flags (`SHADER_FLAG_*`)
### Lua Example
`local numberValue = get_shader_flag_value(flag)`
### Parameters
| Field | Type |
| ----- | ---- |
| flag | [enum ShaderFlag](constants.md#enum-ShaderFlag) |
### Returns
- `number`
### C Prototype
`f32 get_shader_flag_value(enum ShaderFlag flag);`
[:arrow_up_small:](#)
<br />
## [set_shader_flag_value](#set_shader_flag_value)
### Description
Sets a value for one of the custom shader flags (`SHADER_FLAG_*`) for the renderer
### Lua Example
`set_shader_flag_value(flag, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| flag | [enum ShaderFlag](constants.md#enum-ShaderFlag) |
| value | `number` |
### Returns
- None
### C Prototype
`void set_shader_flag_value(enum ShaderFlag flag, f32 value);`
[:arrow_up_small:](#)
<br />
## [get_global_shader_flags_enabled](#get_global_shader_flags_enabled)
### Description
Gets if custom shader flags are enabled globally
### Lua Example
`local booleanValue = get_global_shader_flags_enabled()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool get_global_shader_flags_enabled(void);`
[:arrow_up_small:](#)
<br />
## [set_global_shader_flags_enabled](#set_global_shader_flags_enabled)
### Description
Enables custom shader flags as a global toggle, useful for disabling without manually going through every effect
### Lua Example
`set_global_shader_flags_enabled(enabled)`
### Parameters
| Field | Type |
| ----- | ---- |
| enabled | `boolean` |
### Returns
- None
### C Prototype
`void set_global_shader_flags_enabled(bool enabled);`
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<br />
## [clear_all_shader_flags](#clear_all_shader_flags)
### Description
Clears all custom shader flags (`SHADER_FLAG_*`) for the renderer
### Lua Example
`clear_all_shader_flags()`
### Parameters
- None
### Returns
- None
### C Prototype
`void clear_all_shader_flags(void);`
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<br />
## [set_override_fov](#set_override_fov)
### Description
Sets the override FOV
### Lua Example
`set_override_fov(fov)`
### Parameters
| Field | Type |
| ----- | ---- |
| fov | `number` |
### Returns
- None
### C Prototype
`void set_override_fov(f32 fov);`
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<br />
## [set_override_near](#set_override_near)
### Description
Sets the override near plane
### Lua Example
`set_override_near(near)`
### Parameters
| Field | Type |
| ----- | ---- |
| near | `number` |
### Returns
- None
### C Prototype
`void set_override_near(f32 near);`
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<br />
## [set_override_far](#set_override_far)
### Description
Sets the override far plane
### Lua Example
`set_override_far(far)`
### Parameters
| Field | Type |
| ----- | ---- |
| far | `number` |
### Returns
- None
### C Prototype
`void set_override_far(f32 far);`
[:arrow_up_small:](#)
<br />
## [get_lighting_dir](#get_lighting_dir)
### Description
Gets a value of the global lighting direction
### Lua Example
`local numberValue = get_lighting_dir(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `number`
### C Prototype
`f32 get_lighting_dir(u8 index);`
[:arrow_up_small:](#)
<br />
## [set_lighting_dir](#set_lighting_dir)
### Description
Sets a value of the global lighting direction
### Lua Example
`set_lighting_dir(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `number` |
### Returns
- None
### C Prototype
`void set_lighting_dir(u8 index, f32 value);`
[:arrow_up_small:](#)
<br />
## [get_lighting_color](#get_lighting_color)
### Description
Gets a value of the global lighting color
### Lua Example
`local integerValue = get_lighting_color(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`u8 get_lighting_color(u8 index);`
[:arrow_up_small:](#)
<br />
## [get_lighting_color_ambient](#get_lighting_color_ambient)
### Description
Gets a value of the global ambient lighting color
### Lua Example
`local integerValue = get_lighting_color_ambient(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`u8 get_lighting_color_ambient(u8 index);`
[:arrow_up_small:](#)
<br />
## [set_lighting_color](#set_lighting_color)
### Description
Sets a value of the global lighting color
### Lua Example
`set_lighting_color(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_lighting_color(u8 index, u8 value);`
[:arrow_up_small:](#)
<br />
## [set_lighting_color_ambient](#set_lighting_color_ambient)
### Description
Sets a value of the global lighting color (run this after `set_lighting_color` for the ambient color to not be overriden)
### Lua Example
`set_lighting_color_ambient(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_lighting_color_ambient(u8 index, u8 value);`
[:arrow_up_small:](#)
<br />
## [get_vertex_color](#get_vertex_color)
### Description
Gets a value of the global vertex shading color
### Lua Example
`local integerValue = get_vertex_color(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`u8 get_vertex_color(u8 index);`
[:arrow_up_small:](#)
<br />
## [set_vertex_color](#set_vertex_color)
### Description
Sets a value of the global vertex shading color
### Lua Example
`set_vertex_color(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_vertex_color(u8 index, u8 value);`
[:arrow_up_small:](#)
<br />
## [get_fog_color](#get_fog_color)
### Description
Gets a value of the global fog color
### Lua Example
`local integerValue = get_fog_color(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`u8 get_fog_color(u8 index);`
[:arrow_up_small:](#)
<br />
## [set_fog_color](#set_fog_color)
### Description
Sets a value of the global fog color
### Lua Example
`set_fog_color(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_fog_color(u8 index, u8 value);`
[:arrow_up_small:](#)
<br />
## [get_fog_intensity](#get_fog_intensity)
### Description
Gets the intensity of the fog
### Lua Example
`local numberValue = get_fog_intensity()`
### Parameters
- None
### Returns
- `number`
### C Prototype
`f32 get_fog_intensity(void);`
[:arrow_up_small:](#)
<br />
## [set_fog_intensity](#set_fog_intensity)
### Description
Sets the intensity of the fog (this value scales very quickly, 1.0 to 1.1 is a desirable range)
### Lua Example
`set_fog_intensity(intensity)`
### Parameters
| Field | Type |
| ----- | ---- |
| intensity | `number` |
### Returns
- None
### C Prototype
`void set_fog_intensity(f32 intensity);`
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<br />
## [get_skybox](#get_skybox)
### Description
Gets the current skybox
### Lua Example
`local integerValue = get_skybox()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s8 get_skybox(void);`
[:arrow_up_small:](#)
<br />
## [set_override_skybox](#set_override_skybox)
### Description
Sets the override skybox
### Lua Example
`set_override_skybox(background)`
### Parameters
| Field | Type |
| ----- | ---- |
| background | `integer` |
### Returns
- None
### C Prototype
`void set_override_skybox(s8 background);`
[:arrow_up_small:](#)
<br />
## [get_skybox_color](#get_skybox_color)
### Description
Gets a value of the global skybox color
### Lua Example
`local integerValue = get_skybox_color(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`u8 get_skybox_color(u8 index);`
[:arrow_up_small:](#)
<br />
## [set_skybox_color](#set_skybox_color)
### Description
Sets a value of the global skybox color
### Lua Example
`set_skybox_color(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_skybox_color(u8 index, u8 value);`
[:arrow_up_small:](#)
<br />
## [gfx_parse](#gfx_parse)
### Description
Traverses a display list. Takes a Lua function as a parameter, which is called back for each command in the display list with the parameters `cmd` (display list pointer), and `op`
### Lua Example
`gfx_parse(cmd, func)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
| func | `Lua Function` () |
### Returns
- None
### C Prototype
`void gfx_parse(Gfx *cmd, LuaFunction func);`
[:arrow_up_small:](#)
<br />
## [gfx_get_op](#gfx_get_op)
### Description
Gets the op of the display list command
### Lua Example
`local integerValue = gfx_get_op(cmd)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
### Returns
- `integer`
### C Prototype
`u32 gfx_get_op(Gfx *cmd);`
[:arrow_up_small:](#)
<br />
## [gfx_get_display_list](#gfx_get_display_list)
### Description
Gets the display list from a display list command if it has the op `G_DL`
### Lua Example
`local pointerValue = gfx_get_display_list(cmd)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
### Returns
- `Pointer` <`Gfx`>
### C Prototype
`Gfx *gfx_get_display_list(Gfx *cmd);`
[:arrow_up_small:](#)
<br />
## [gfx_get_vertex_buffer](#gfx_get_vertex_buffer)
### Description
Gets the vertex buffer from a display list command if it has the op `G_VTX`
### Lua Example
`local pointerValue = gfx_get_vertex_buffer(cmd)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
### Returns
- `Pointer` <`Vtx`>
### C Prototype
`Vtx *gfx_get_vertex_buffer(Gfx *cmd);`
[:arrow_up_small:](#)
<br />
## [gfx_get_vertex_count](#gfx_get_vertex_count)
### Description
Gets the number of vertices from a display list command if it has the op `G_VTX`
### Lua Example
`local integerValue = gfx_get_vertex_count(cmd)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
### Returns
- `integer`
### C Prototype
`u16 gfx_get_vertex_count(Gfx *cmd);`
[:arrow_up_small:](#)
<br />
## [gfx_get_texture](#gfx_get_texture)
### Description
Gets the texture from a display list command if it has an image related op
### Lua Example
`local pointerValue = gfx_get_texture(cmd)`
### Parameters
| Field | Type |
| ----- | ---- |
| cmd | `Pointer` <`Gfx`> |
### Returns
- `Pointer` <`Texture`>
### C Prototype
`Texture *gfx_get_texture(Gfx *cmd);`
[:arrow_up_small:](#)
<br />
## [gfx_get_from_name](#gfx_get_from_name)
### Description
Gets a display list of the current mod from its name. Returns a pointer to the display list and its length
### Lua Example
`local pointerValue, length = gfx_get_from_name(name)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
### Returns
- `Pointer` <`Gfx`>
- `integer`
### C Prototype
`Gfx *gfx_get_from_name(const char *name, RET u32 *length);`
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<br />
## [gfx_get_name](#gfx_get_name)
### Description
Gets the name of a display list
### Lua Example
`local stringValue = gfx_get_name(gfx)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
### Returns
- `string`
### C Prototype
`const char *gfx_get_name(Gfx *gfx);`
[:arrow_up_small:](#)
<br />
## [gfx_get_length](#gfx_get_length)
### Description
Gets the max length of a display list
### Lua Example
`local integerValue = gfx_get_length(gfx)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
### Returns
- `integer`
### C Prototype
`u32 gfx_get_length(Gfx *gfx);`
[:arrow_up_small:](#)
<br />
## [gfx_get_command](#gfx_get_command)
### Description
Gets a command of a display list at position `offset`
### Lua Example
`local pointerValue = gfx_get_command(gfx, offset)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
| offset | `integer` |
### Returns
- `Pointer` <`Gfx`>
### C Prototype
`Gfx *gfx_get_command(Gfx *gfx, u32 offset);`
[:arrow_up_small:](#)
<br />
## [gfx_get_next_command](#gfx_get_next_command)
### Description
Gets the next command of a given display list pointer. Intended to use in a for loop
### Lua Example
`local pointerValue = gfx_get_next_command(gfx)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
### Returns
- `Pointer` <`Gfx`>
### C Prototype
`Gfx *gfx_get_next_command(Gfx *gfx);`
[:arrow_up_small:](#)
<br />
## [gfx_copy](#gfx_copy)
### Description
Copies `length` commands from display list `src` to display list `dest`
### Lua Example
`gfx_copy(dest, src, length)`
### Parameters
| Field | Type |
| ----- | ---- |
| dest | `Pointer` <`Gfx`> |
| src | `Pointer` <`Gfx`> |
| length | `integer` |
### Returns
- None
### C Prototype
`void gfx_copy(Gfx *dest, Gfx *src, u32 length);`
[:arrow_up_small:](#)
<br />
## [gfx_create](#gfx_create)
### Description
Creates a new named display list of `length` commands
### Lua Example
`local pointerValue = gfx_create(name, length)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
| length | `integer` |
### Returns
- `Pointer` <`Gfx`>
### C Prototype
`Gfx *gfx_create(const char *name, u32 length);`
[:arrow_up_small:](#)
<br />
## [gfx_resize](#gfx_resize)
### Description
Resizes a display list created by `gfx_create`
### Lua Example
`gfx_resize(gfx, newLength)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
| newLength | `integer` |
### Returns
- None
### C Prototype
`void gfx_resize(Gfx *gfx, u32 newLength);`
[:arrow_up_small:](#)
<br />
## [gfx_delete](#gfx_delete)
### Description
Deletes a display list created by `gfx_create`
### Lua Example
`gfx_delete(gfx)`
### Parameters
| Field | Type |
| ----- | ---- |
| gfx | `Pointer` <`Gfx`> |
### Returns
- None
### C Prototype
`void gfx_delete(Gfx *gfx);`
[:arrow_up_small:](#)
<br />
## [gfx_delete_all](#gfx_delete_all)
### Description
Deletes all display lists created by `gfx_create`
### Lua Example
`gfx_delete_all()`
### Parameters
- None
### Returns
- None
### C Prototype
`void gfx_delete_all();`
[:arrow_up_small:](#)
<br />
## [vtx_get_from_name](#vtx_get_from_name)
### Description
Gets a vertex buffer of the current mod from its name. Returns a pointer to the vertex buffer and its vertex count
### Lua Example
`local pointerValue, count = vtx_get_from_name(name)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
### Returns
- `Pointer` <`Vtx`>
- `integer`
### C Prototype
`Vtx *vtx_get_from_name(const char *name, RET u32 *count);`
[:arrow_up_small:](#)
<br />
## [vtx_get_name](#vtx_get_name)
### Description
Gets the name of a vertex buffer
### Lua Example
`local stringValue = vtx_get_name(vtx)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
### Returns
- `string`
### C Prototype
`const char *vtx_get_name(Vtx *vtx);`
[:arrow_up_small:](#)
<br />
## [vtx_get_count](#vtx_get_count)
### Description
Gets the max count of vertices of a vertex buffer
### Lua Example
`local integerValue = vtx_get_count(vtx)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
### Returns
- `integer`
### C Prototype
`u32 vtx_get_count(Vtx *vtx);`
[:arrow_up_small:](#)
<br />
## [vtx_get_vertex](#vtx_get_vertex)
### Description
Gets a vertex of a vertex buffer at position `offset`
### Lua Example
`local pointerValue = vtx_get_vertex(vtx, offset)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
| offset | `integer` |
### Returns
- `Pointer` <`Vtx`>
### C Prototype
`Vtx *vtx_get_vertex(Vtx *vtx, u32 offset);`
[:arrow_up_small:](#)
<br />
## [vtx_get_next_vertex](#vtx_get_next_vertex)
### Description
Gets the next vertex of a given vertex pointer. Intended to use in a for loop
### Lua Example
`local pointerValue = vtx_get_next_vertex(vtx)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
### Returns
- `Pointer` <`Vtx`>
### C Prototype
`Vtx *vtx_get_next_vertex(Vtx *vtx);`
[:arrow_up_small:](#)
<br />
## [vtx_copy](#vtx_copy)
### Description
Copies `count` vertices from vertex buffer `src` to vertex buffer `dest`
### Lua Example
`vtx_copy(dest, src, count)`
### Parameters
| Field | Type |
| ----- | ---- |
| dest | `Pointer` <`Vtx`> |
| src | `Pointer` <`Vtx`> |
| count | `integer` |
### Returns
- None
### C Prototype
`void vtx_copy(Vtx *dest, Vtx *src, u32 count);`
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<br />
## [vtx_create](#vtx_create)
### Description
Creates a new named vertex buffer of `count` vertices
### Lua Example
`local pointerValue = vtx_create(name, count)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
| count | `integer` |
### Returns
- `Pointer` <`Vtx`>
### C Prototype
`Vtx *vtx_create(const char *name, u32 count);`
[:arrow_up_small:](#)
<br />
## [vtx_resize](#vtx_resize)
### Description
Resizes a vertex buffer created by `vtx_create`
### Lua Example
`vtx_resize(vtx, newCount)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
| newCount | `integer` |
### Returns
- None
### C Prototype
`void vtx_resize(Vtx *vtx, u32 newCount);`
[:arrow_up_small:](#)
<br />
## [vtx_delete](#vtx_delete)
### Description
Deletes a vertex buffer created by `vtx_create`
### Lua Example
`vtx_delete(vtx)`
### Parameters
| Field | Type |
| ----- | ---- |
| vtx | `Pointer` <`Vtx`> |
### Returns
- None
### C Prototype
`void vtx_delete(Vtx *vtx);`
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<br />
## [vtx_delete_all](#vtx_delete_all)
### Description
Deletes all vertex buffers created by `vtx_create`
### Lua Example
`vtx_delete_all()`
### Parameters
- None
### Returns
- None
### C Prototype
`void vtx_delete_all();`
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<br />
---
# functions from smlua_level_utils.h
<br />
## [smlua_level_util_change_area](#smlua_level_util_change_area)
### Description
Instantly changes the current area to `areaIndex`
### Lua Example
`smlua_level_util_change_area(areaIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| areaIndex | `integer` |
### Returns
- None
### C Prototype
`void smlua_level_util_change_area(s32 areaIndex);`
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## [smlua_level_util_get_info](#smlua_level_util_get_info)
### Description
Gets information on a custom level from `levelNum`
### Lua Example
`local customLevelInfoValue = smlua_level_util_get_info(levelNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| levelNum | `integer` |
### Returns
- [CustomLevelInfo](structs.md#CustomLevelInfo)
### C Prototype
`struct CustomLevelInfo* smlua_level_util_get_info(s16 levelNum);`
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## [smlua_level_util_get_info_from_short_name](#smlua_level_util_get_info_from_short_name)
### Description
Gets information on a custom level from `shortName`
### Lua Example
`local customLevelInfoValue = smlua_level_util_get_info_from_short_name(shortName)`
### Parameters
| Field | Type |
| ----- | ---- |
| shortName | `string` |
### Returns
- [CustomLevelInfo](structs.md#CustomLevelInfo)
### C Prototype
`struct CustomLevelInfo* smlua_level_util_get_info_from_short_name(const char* shortName);`
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## [smlua_level_util_get_info_from_course_num](#smlua_level_util_get_info_from_course_num)
### Description
Gets information on a custom level from `courseNum`
### Lua Example
`local customLevelInfoValue = smlua_level_util_get_info_from_course_num(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- [CustomLevelInfo](structs.md#CustomLevelInfo)
### C Prototype
`struct CustomLevelInfo* smlua_level_util_get_info_from_course_num(u8 courseNum);`
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## [level_register](#level_register)
### Description
Registers a fully custom level. Level ID begins at 50
### Lua Example
`local integerValue = level_register(scriptEntryName, courseNum, fullName, shortName, acousticReach, echoLevel1, echoLevel2, echoLevel3)`
### Parameters
| Field | Type |
| ----- | ---- |
| scriptEntryName | `string` |
| courseNum | `integer` |
| fullName | `string` |
| shortName | `string` |
| acousticReach | `integer` |
| echoLevel1 | `integer` |
| echoLevel2 | `integer` |
| echoLevel3 | `integer` |
### Returns
- `integer`
### C Prototype
`s16 level_register(const char* scriptEntryName, s16 courseNum, const char* fullName, const char* shortName, u32 acousticReach, u32 echoLevel1, u32 echoLevel2, u32 echoLevel3);`
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## [level_is_vanilla_level](#level_is_vanilla_level)
### Description
Checks if `levelNum` is a vanilla level
### Lua Example
`local booleanValue = level_is_vanilla_level(levelNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| levelNum | `integer` |
### Returns
- `boolean`
### C Prototype
`bool level_is_vanilla_level(s16 levelNum);`
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## [warp_to_warpnode](#warp_to_warpnode)
### Description
Warps to `aWarpId` of `aArea` in `aLevel` during `aAct`
### Lua Example
`local booleanValue = warp_to_warpnode(aLevel, aArea, aAct, aWarpId)`
### Parameters
| Field | Type |
| ----- | ---- |
| aLevel | `integer` |
| aArea | `integer` |
| aAct | `integer` |
| aWarpId | `integer` |
### Returns
- `boolean`
### C Prototype
`bool warp_to_warpnode(s32 aLevel, s32 aArea, s32 aAct, s32 aWarpId);`
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## [warp_to_level](#warp_to_level)
### Description
Warps to `aArea` of `aLevel` in `aAct`
### Lua Example
`local booleanValue = warp_to_level(aLevel, aArea, aAct)`
### Parameters
| Field | Type |
| ----- | ---- |
| aLevel | `integer` |
| aArea | `integer` |
| aAct | `integer` |
### Returns
- `boolean`
### C Prototype
`bool warp_to_level(s32 aLevel, s32 aArea, s32 aAct);`
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## [warp_restart_level](#warp_restart_level)
### Description
Restarts the current level
### Lua Example
`local booleanValue = warp_restart_level()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool warp_restart_level(void);`
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## [warp_to_start_level](#warp_to_start_level)
### Description
Warps to the start level (Castle Grounds by default)
### Lua Example
`local booleanValue = warp_to_start_level()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool warp_to_start_level(void);`
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## [warp_exit_level](#warp_exit_level)
### Description
Exits the current level after `aDelay`
### Lua Example
`local booleanValue = warp_exit_level(aDelay)`
### Parameters
| Field | Type |
| ----- | ---- |
| aDelay | `integer` |
### Returns
- `boolean`
### C Prototype
`bool warp_exit_level(s32 aDelay);`
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## [warp_to_castle](#warp_to_castle)
### Description
Warps back to the castle from `aLevel`
### Lua Example
`local booleanValue = warp_to_castle(aLevel)`
### Parameters
| Field | Type |
| ----- | ---- |
| aLevel | `integer` |
### Returns
- `boolean`
### C Prototype
`bool warp_to_castle(s32 aLevel);`
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---
# functions from smlua_misc_utils.h
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## [get_network_area_timer](#get_network_area_timer)
### Description
Gets the current area's networked timer
### Lua Example
`local integerValue = get_network_area_timer()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u32 get_network_area_timer(void);`
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## [get_area_update_counter](#get_area_update_counter)
### Description
Gets the area update counter incremented when objects are updated
### Lua Example
`local integerValue = get_area_update_counter()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u16 get_area_update_counter(void);`
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## [get_temp_s32_pointer](#get_temp_s32_pointer)
### Description
Returns a temporary signed 32-bit integer pointer with its value set to `initialValue`
### Lua Example
`local pointerValue = get_temp_s32_pointer(initialValue)`
### Parameters
| Field | Type |
| ----- | ---- |
| initialValue | `integer` |
### Returns
- `Pointer` <`integer`>
### C Prototype
`s32* get_temp_s32_pointer(s32 initialValue);`
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## [deref_s32_pointer](#deref_s32_pointer)
### Description
Gets the signed 32-bit integer value from `pointer`
### Lua Example
`local integerValue = deref_s32_pointer(pointer)`
### Parameters
| Field | Type |
| ----- | ---- |
| pointer | `Pointer` <`integer`> |
### Returns
- `integer`
### C Prototype
`s32 deref_s32_pointer(s32* pointer);`
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## [djui_popup_create_global](#djui_popup_create_global)
### Description
Creates a DJUI popup that is broadcasted to every client
### Lua Example
`djui_popup_create_global(message, lines)`
### Parameters
| Field | Type |
| ----- | ---- |
| message | `string` |
| lines | `integer` |
### Returns
- None
### C Prototype
`void djui_popup_create_global(const char* message, int lines);`
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## [djui_is_popup_disabled](#djui_is_popup_disabled)
### Description
Returns if popups are disabled
### Lua Example
`local booleanValue = djui_is_popup_disabled()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool djui_is_popup_disabled(void);`
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## [djui_set_popup_disabled_override](#djui_set_popup_disabled_override)
### Description
Sets if popups are disabled
### Lua Example
`djui_set_popup_disabled_override(value)`
### Parameters
| Field | Type |
| ----- | ---- |
| value | `boolean` |
### Returns
- None
### C Prototype
`void djui_set_popup_disabled_override(bool value);`
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## [djui_reset_popup_disabled_override](#djui_reset_popup_disabled_override)
### Description
Resets if popups are disabled
### Lua Example
`djui_reset_popup_disabled_override()`
### Parameters
- None
### Returns
- None
### C Prototype
`void djui_reset_popup_disabled_override(void);`
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## [djui_is_playerlist_open](#djui_is_playerlist_open)
### Description
Checks if the DJUI playerlist is open
### Lua Example
`local booleanValue = djui_is_playerlist_open()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool djui_is_playerlist_open(void);`
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## [djui_attempting_to_open_playerlist](#djui_attempting_to_open_playerlist)
### Description
Checks if the DJUI playerlist is attempting to be opened
### Lua Example
`local booleanValue = djui_attempting_to_open_playerlist()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool djui_attempting_to_open_playerlist(void);`
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## [djui_get_playerlist_page_index](#djui_get_playerlist_page_index)
### Description
Gets the DJUI playerlist's page index
### Lua Example
`local integerValue = djui_get_playerlist_page_index()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u8 djui_get_playerlist_page_index(void);`
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## [djui_is_chatbox_open](#djui_is_chatbox_open)
### Description
Checks if the DJUI chatbox is open
### Lua Example
`local booleanValue = djui_is_chatbox_open()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool djui_is_chatbox_open(void);`
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## [djui_menu_get_font](#djui_menu_get_font)
### Description
Gets the DJUI menu font
### Lua Example
`local enumValue = djui_menu_get_font()`
### Parameters
- None
### Returns
- [enum DjuiFontType](constants.md#enum-DjuiFontType)
### C Prototype
`enum DjuiFontType djui_menu_get_font(void);`
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## [djui_menu_get_theme](#djui_menu_get_theme)
### Description
Gets the DJUI menu theme
### Lua Example
`local djuiThemeValue = djui_menu_get_theme()`
### Parameters
- None
### Returns
- [DjuiTheme](structs.md#DjuiTheme)
### C Prototype
`struct DjuiTheme* djui_menu_get_theme(void);`
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## [djui_is_playerlist_ping_visible](#djui_is_playerlist_ping_visible)
### Description
Checks if the DJUI playerlist ping icon is visible
### Lua Example
`local booleanValue = djui_is_playerlist_ping_visible()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool djui_is_playerlist_ping_visible(void);`
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## [get_dialog_box_state](#get_dialog_box_state)
### Description
Gets the current state of the dialog box
### Lua Example
`local integerValue = get_dialog_box_state()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s8 get_dialog_box_state(void);`
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## [get_dialog_id](#get_dialog_id)
### Description
Gets the current dialog box ID
### Lua Example
`local integerValue = get_dialog_id()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s32 get_dialog_id(void);`
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## [get_last_star_or_key](#get_last_star_or_key)
### Description
Gets if the last objective collected was a star (0) or a key (1)
### Lua Example
`local integerValue = get_last_star_or_key()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u8 get_last_star_or_key(void);`
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## [set_last_star_or_key](#set_last_star_or_key)
### Description
Sets if the last objective collected was a star (0) or a key (1)
### Lua Example
`set_last_star_or_key(value)`
### Parameters
| Field | Type |
| ----- | ---- |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_last_star_or_key(u8 value);`
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## [get_last_completed_course_num](#get_last_completed_course_num)
### Description
Gets the last course a star or key was collected in
### Lua Example
`local integerValue = get_last_completed_course_num()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u8 get_last_completed_course_num(void);`
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## [set_last_completed_course_num](#set_last_completed_course_num)
### Description
Sets the last course a star or key was collected in
### Lua Example
`set_last_completed_course_num(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- None
### C Prototype
`void set_last_completed_course_num(u8 courseNum);`
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## [get_last_completed_star_num](#get_last_completed_star_num)
### Description
Gets the last collected star's number (1-7)
### Lua Example
`local integerValue = get_last_completed_star_num()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u8 get_last_completed_star_num(void);`
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## [set_last_completed_star_num](#set_last_completed_star_num)
### Description
Sets the last collected star's number (1-7)
### Lua Example
`set_last_completed_star_num(starNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| starNum | `integer` |
### Returns
- None
### C Prototype
`void set_last_completed_star_num(u8 starNum);`
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## [get_got_file_coin_hi_score](#get_got_file_coin_hi_score)
### Description
Checks if the save file's coin "HI SCORE" was obtained with the last star or key collection
### Lua Example
`local booleanValue = get_got_file_coin_hi_score()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool get_got_file_coin_hi_score(void);`
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## [set_got_file_coin_hi_score](#set_got_file_coin_hi_score)
### Description
Sets if the save file's coin "HI SCORE" was obtained with the last star or key collection
### Lua Example
`set_got_file_coin_hi_score(value)`
### Parameters
| Field | Type |
| ----- | ---- |
| value | `boolean` |
### Returns
- None
### C Prototype
`void set_got_file_coin_hi_score(bool value);`
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## [get_save_file_modified](#get_save_file_modified)
### Description
Checks if the save file has been modified without saving
### Lua Example
`local booleanValue = get_save_file_modified()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool get_save_file_modified(void);`
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## [set_save_file_modified](#set_save_file_modified)
### Description
Sets if the save file has been modified without saving
### Lua Example
`set_save_file_modified(value)`
### Parameters
| Field | Type |
| ----- | ---- |
| value | `boolean` |
### Returns
- None
### C Prototype
`void set_save_file_modified(bool value);`
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## [hud_hide](#hud_hide)
### Description
Hides the HUD
### Lua Example
`hud_hide()`
### Parameters
- None
### Returns
- None
### C Prototype
`void hud_hide(void);`
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## [hud_show](#hud_show)
### Description
Shows the HUD
### Lua Example
`hud_show()`
### Parameters
- None
### Returns
- None
### C Prototype
`void hud_show(void);`
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## [hud_is_hidden](#hud_is_hidden)
### Description
Checks if the HUD is hidden
### Lua Example
`local booleanValue = hud_is_hidden()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool hud_is_hidden(void);`
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## [hud_get_value](#hud_get_value)
### Description
Gets a HUD display value
### Lua Example
`local integerValue = hud_get_value(type)`
### Parameters
| Field | Type |
| ----- | ---- |
| type | [enum HudDisplayValue](constants.md#enum-HudDisplayValue) |
### Returns
- `integer`
### C Prototype
`s32 hud_get_value(enum HudDisplayValue type);`
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## [hud_set_value](#hud_set_value)
### Description
Sets a HUD display value
### Lua Example
`hud_set_value(type, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| type | [enum HudDisplayValue](constants.md#enum-HudDisplayValue) |
| value | `integer` |
### Returns
- None
### C Prototype
`void hud_set_value(enum HudDisplayValue type, s32 value);`
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## [hud_render_power_meter](#hud_render_power_meter)
### Description
Renders a power meter on the HUD
### Lua Example
`hud_render_power_meter(health, x, y, width, height)`
### Parameters
| Field | Type |
| ----- | ---- |
| health | `integer` |
| x | `number` |
| y | `number` |
| width | `number` |
| height | `number` |
### Returns
- None
### C Prototype
`void hud_render_power_meter(s32 health, f32 x, f32 y, f32 width, f32 height);`
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## [hud_render_power_meter_interpolated](#hud_render_power_meter_interpolated)
### Description
Renders an interpolated power meter on the HUD
### Lua Example
`hud_render_power_meter_interpolated(health, prevX, prevY, prevWidth, prevHeight, x, y, width, height)`
### Parameters
| Field | Type |
| ----- | ---- |
| health | `integer` |
| prevX | `number` |
| prevY | `number` |
| prevWidth | `number` |
| prevHeight | `number` |
| x | `number` |
| y | `number` |
| width | `number` |
| height | `number` |
### Returns
- None
### C Prototype
`void hud_render_power_meter_interpolated(s32 health, f32 prevX, f32 prevY, f32 prevWidth, f32 prevHeight, f32 x, f32 y, f32 width, f32 height);`
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## [hud_get_flash](#hud_get_flash)
### Description
Gets if the star counter on the HUD should flash
### Lua Example
`local integerValue = hud_get_flash()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s8 hud_get_flash(void);`
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## [hud_set_flash](#hud_set_flash)
### Description
Sets if the star counter on the HUD should flash
### Lua Example
`hud_set_flash(value)`
### Parameters
| Field | Type |
| ----- | ---- |
| value | `integer` |
### Returns
- None
### C Prototype
`void hud_set_flash(s8 value);`
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## [act_select_hud_hide](#act_select_hud_hide)
### Description
Hides part of the Act Select HUD
### Lua Example
`act_select_hud_hide(part)`
### Parameters
| Field | Type |
| ----- | ---- |
| part | [enum ActSelectHudPart](constants.md#enum-ActSelectHudPart) |
### Returns
- None
### C Prototype
`void act_select_hud_hide(enum ActSelectHudPart part);`
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## [act_select_hud_show](#act_select_hud_show)
### Description
Shows part of the Act Select HUD
### Lua Example
`act_select_hud_show(part)`
### Parameters
| Field | Type |
| ----- | ---- |
| part | [enum ActSelectHudPart](constants.md#enum-ActSelectHudPart) |
### Returns
- None
### C Prototype
`void act_select_hud_show(enum ActSelectHudPart part);`
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## [act_select_hud_is_hidden](#act_select_hud_is_hidden)
### Description
Checks if part of the Act Select HUD is hidden
### Lua Example
`local booleanValue = act_select_hud_is_hidden(part)`
### Parameters
| Field | Type |
| ----- | ---- |
| part | [enum ActSelectHudPart](constants.md#enum-ActSelectHudPart) |
### Returns
- `boolean`
### C Prototype
`bool act_select_hud_is_hidden(enum ActSelectHudPart part);`
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## [is_game_paused](#is_game_paused)
### Description
Checks if the game is paused
### Lua Example
`local booleanValue = is_game_paused()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool is_game_paused(void);`
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## [is_pause_menu_hidden](#is_pause_menu_hidden)
### Description
Gets if the pause menu elements are hidden, useful for creating custom pause menus
### Lua Example
`local booleanValue = is_pause_menu_hidden()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool is_pause_menu_hidden(void);`
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## [set_pause_menu_hidden](#set_pause_menu_hidden)
### Description
Sets if the pause menu elements are hidden, useful for creating custom pause menus
### Lua Example
`set_pause_menu_hidden(hidden)`
### Parameters
| Field | Type |
| ----- | ---- |
| hidden | `boolean` |
### Returns
- None
### C Prototype
`void set_pause_menu_hidden(bool hidden);`
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## [game_pause](#game_pause)
### Description
Pauses the game
### Lua Example
`game_pause()`
### Parameters
- None
### Returns
- None
### C Prototype
`void game_pause(void);`
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## [game_unpause](#game_unpause)
### Description
Unpauses the game
### Lua Example
`game_unpause()`
### Parameters
- None
### Returns
- None
### C Prototype
`void game_unpause(void);`
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## [is_transition_playing](#is_transition_playing)
### Description
Checks if a screen transition is playing
### Lua Example
`local booleanValue = is_transition_playing()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool is_transition_playing(void);`
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## [allocate_mario_action](#allocate_mario_action)
### Description
Allocates an action ID with bitwise flags
### Lua Example
`local integerValue = allocate_mario_action(actFlags)`
### Parameters
| Field | Type |
| ----- | ---- |
| actFlags | `integer` |
### Returns
- `integer`
### C Prototype
`u32 allocate_mario_action(u32 actFlags);`
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## [get_hand_foot_pos_x](#get_hand_foot_pos_x)
### Description
Gets the X coordinate of Mario's hand (0-1) or foot (2-3) but it is important to note that the positions are not updated off-screen
### Lua Example
`local numberValue = get_hand_foot_pos_x(m, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| m | [MarioState](structs.md#MarioState) |
| index | `integer` |
### Returns
- `number`
### C Prototype
`f32 get_hand_foot_pos_x(struct MarioState* m, u8 index);`
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<br />
## [get_hand_foot_pos_y](#get_hand_foot_pos_y)
### Description
Gets the Y coordinate of Mario's hand (0-1) or foot (2-3) but It is important to note that the positions are not updated off-screen
### Lua Example
`local numberValue = get_hand_foot_pos_y(m, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| m | [MarioState](structs.md#MarioState) |
| index | `integer` |
### Returns
- `number`
### C Prototype
`f32 get_hand_foot_pos_y(struct MarioState* m, u8 index);`
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<br />
## [get_hand_foot_pos_z](#get_hand_foot_pos_z)
### Description
Gets the Z coordinate of Mario's hand (0-1) or foot (2-3) but it is important to note that the positions are not updated off-screen
### Lua Example
`local numberValue = get_hand_foot_pos_z(m, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| m | [MarioState](structs.md#MarioState) |
| index | `integer` |
### Returns
- `number`
### C Prototype
`f32 get_hand_foot_pos_z(struct MarioState* m, u8 index);`
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<br />
## [get_mario_anim_part_pos](#get_mario_anim_part_pos)
### Description
Retrieves the animated part position associated to `animPart` from the MarioState `m` and stores it into `pos`. Returns `true` on success or `false` on failure
### Lua Example
`local booleanValue = get_mario_anim_part_pos(m, animPart, pos)`
### Parameters
| Field | Type |
| ----- | ---- |
| m | [MarioState](structs.md#MarioState) |
| animPart | `integer` |
| pos | [Vec3f](structs.md#Vec3f) |
### Returns
- `boolean`
### C Prototype
`bool get_mario_anim_part_pos(struct MarioState *m, u32 animPart, VEC_OUT Vec3f pos);`
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## [get_mario_anim_part_rot](#get_mario_anim_part_rot)
### Description
Retrieves the animated part rotation associated to `animPart` from the MarioState `m` and stores it into `rot`. Returns `true` on success or `false` on failure
### Lua Example
`local booleanValue = get_mario_anim_part_rot(m, animPart, rot)`
### Parameters
| Field | Type |
| ----- | ---- |
| m | [MarioState](structs.md#MarioState) |
| animPart | `integer` |
| rot | [Vec3s](structs.md#Vec3s) |
### Returns
- `boolean`
### C Prototype
`bool get_mario_anim_part_rot(struct MarioState *m, u32 animPart, VEC_OUT Vec3s rot);`
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## [get_current_save_file_num](#get_current_save_file_num)
### Description
Gets the current save file number (1-indexed)
### Lua Example
`local integerValue = get_current_save_file_num()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s16 get_current_save_file_num(void);`
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## [save_file_get_using_backup_slot](#save_file_get_using_backup_slot)
### Description
Checks if the save file is using its backup slot
### Lua Example
`local booleanValue = save_file_get_using_backup_slot()`
### Parameters
- None
### Returns
- `boolean`
### C Prototype
`bool save_file_get_using_backup_slot(void);`
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## [save_file_set_using_backup_slot](#save_file_set_using_backup_slot)
### Description
Sets if the save file should use its backup slot
### Lua Example
`save_file_set_using_backup_slot(usingBackupSlot)`
### Parameters
| Field | Type |
| ----- | ---- |
| usingBackupSlot | `boolean` |
### Returns
- None
### C Prototype
`void save_file_set_using_backup_slot(bool usingBackupSlot);`
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<br />
## [movtexqc_register](#movtexqc_register)
### Description
Registers a custom moving texture entry (used for vanilla water boxes)
### Lua Example
`movtexqc_register(name, level, area, type)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
| level | `integer` |
| area | `integer` |
| type | `integer` |
### Returns
- None
### C Prototype
`void movtexqc_register(const char* name, s16 level, s16 area, s16 type);`
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<br />
## [get_water_level](#get_water_level)
### Description
Gets the water level in an area corresponding to `index` (0-indexed)
### Lua Example
`local integerValue = get_water_level(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`s16 get_water_level(u8 index);`
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<br />
## [set_water_level](#set_water_level)
### Description
Sets the water level in an area corresponding to `index` (0-indexed)
### Lua Example
`set_water_level(index, height, sync)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| height | `integer` |
| sync | `boolean` |
### Returns
- None
### C Prototype
`void set_water_level(u8 index, s16 height, bool sync);`
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<br />
## [course_is_main_course](#course_is_main_course)
### Description
Checks if a course is a main course and not the castle or secret levels
### Lua Example
`local booleanValue = course_is_main_course(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- `boolean`
### C Prototype
`bool course_is_main_course(u16 courseNum);`
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<br />
## [get_ttc_speed_setting](#get_ttc_speed_setting)
### Description
Gets TTC's speed setting
### Lua Example
`local integerValue = get_ttc_speed_setting()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s16 get_ttc_speed_setting(void);`
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<br />
## [set_ttc_speed_setting](#set_ttc_speed_setting)
### Description
Sets TTC's speed setting (TTC_SPEED_*)
### Lua Example
`set_ttc_speed_setting(speed)`
### Parameters
| Field | Type |
| ----- | ---- |
| speed | `integer` |
### Returns
- None
### C Prototype
`void set_ttc_speed_setting(s16 speed);`
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<br />
## [get_time](#get_time)
### Description
Gets the Unix Timestamp
### Lua Example
`local integerValue = get_time()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s64 get_time(void);`
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<br />
## [get_date_and_time](#get_date_and_time)
### Description
Gets the system clock's date and time
### Lua Example
`local dateTimeValue = get_date_and_time()`
### Parameters
- None
### Returns
- [DateTime](structs.md#DateTime)
### C Prototype
`struct DateTime* get_date_and_time(void);`
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<br />
## [get_envfx](#get_envfx)
### Description
Gets the non overridden environment effect (e.g. snow)
### Lua Example
`local integerValue = get_envfx()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u16 get_envfx(void);`
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<br />
## [set_override_envfx](#set_override_envfx)
### Description
Sets the override environment effect (e.g. snow)
### Lua Example
`set_override_envfx(envfx)`
### Parameters
| Field | Type |
| ----- | ---- |
| envfx | `integer` |
### Returns
- None
### C Prototype
`void set_override_envfx(s32 envfx);`
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<br />
## [get_global_timer](#get_global_timer)
### Description
Gets the global timer that has been ticking at 30 frames per second since game boot
### Lua Example
`local integerValue = get_global_timer()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u32 get_global_timer(void);`
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<br />
## [get_dialog_response](#get_dialog_response)
### Description
Gets the choice selected inside of a dialog box (0-1)
### Lua Example
`local integerValue = get_dialog_response()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s32 get_dialog_response(void);`
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<br />
## [get_time_stop_flags](#get_time_stop_flags)
### Description
Gets the active time stop flags, used to freeze specific objects during cutscenes
### Lua Example
`local integerValue = get_time_stop_flags()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`u32 get_time_stop_flags(void);`
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<br />
## [get_local_discord_id](#get_local_discord_id)
### Description
Gets the local discord ID if it isn't disabled, otherwise "0" is returned
### Lua Example
`local stringValue = get_local_discord_id()`
### Parameters
- None
### Returns
- `string`
### C Prototype
`const char* get_local_discord_id(void);`
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<br />
## [get_coopnet_id](#get_coopnet_id)
### Description
Gets the CoopNet ID of a player with `localIndex` if CoopNet is being used and the player is connected, otherwise "-1" is returned
### Lua Example
`local stringValue = get_coopnet_id(localIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| localIndex | `integer` |
### Returns
- `string`
### C Prototype
`const char* get_coopnet_id(s8 localIndex);`
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<br />
## [get_volume_master](#get_volume_master)
### Description
Gets the master volume level
### Lua Example
`local numberValue = get_volume_master()`
### Parameters
- None
### Returns
- `number`
### C Prototype
`f32 get_volume_master(void);`
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<br />
## [get_volume_level](#get_volume_level)
### Description
Gets the volume level of music
### Lua Example
`local numberValue = get_volume_level()`
### Parameters
- None
### Returns
- `number`
### C Prototype
`f32 get_volume_level(void);`
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<br />
## [get_volume_sfx](#get_volume_sfx)
### Description
Gets the volume level of sound effects
### Lua Example
`local numberValue = get_volume_sfx()`
### Parameters
- None
### Returns
- `number`
### C Prototype
`f32 get_volume_sfx(void);`
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<br />
## [get_volume_env](#get_volume_env)
### Description
Gets the volume level of environment sounds effects
### Lua Example
`local numberValue = get_volume_env()`
### Parameters
- None
### Returns
- `number`
### C Prototype
`f32 get_volume_env(void);`
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<br />
## [set_volume_master](#set_volume_master)
### Description
Sets the master volume level
### Lua Example
`set_volume_master(volume)`
### Parameters
| Field | Type |
| ----- | ---- |
| volume | `number` |
### Returns
- None
### C Prototype
`void set_volume_master(f32 volume);`
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<br />
## [set_volume_level](#set_volume_level)
### Description
Sets the volume level of music
### Lua Example
`set_volume_level(volume)`
### Parameters
| Field | Type |
| ----- | ---- |
| volume | `number` |
### Returns
- None
### C Prototype
`void set_volume_level(f32 volume);`
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<br />
## [set_volume_sfx](#set_volume_sfx)
### Description
Sets the volume level of sound effects
### Lua Example
`set_volume_sfx(volume)`
### Parameters
| Field | Type |
| ----- | ---- |
| volume | `number` |
### Returns
- None
### C Prototype
`void set_volume_sfx(f32 volume);`
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<br />
## [set_volume_env](#set_volume_env)
### Description
Sets the volume level of environment sounds effects
### Lua Example
`set_volume_env(volume)`
### Parameters
| Field | Type |
| ----- | ---- |
| volume | `number` |
### Returns
- None
### C Prototype
`void set_volume_env(f32 volume);`
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<br />
## [get_environment_region](#get_environment_region)
### Description
Gets an environment region (gas/water boxes) height value
### Lua Example
`local integerValue = get_environment_region(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`s16 get_environment_region(u8 index);`
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<br />
## [set_environment_region](#set_environment_region)
### Description
Sets an environment region (gas/water boxes) height value
### Lua Example
`set_environment_region(index, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void set_environment_region(u8 index, s16 value);`
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<br />
## [mod_file_exists](#mod_file_exists)
### Description
Checks if a file exists inside of a mod
### Lua Example
`local booleanValue = mod_file_exists(filename)`
### Parameters
| Field | Type |
| ----- | ---- |
| filename | `string` |
### Returns
- `boolean`
### C Prototype
`bool mod_file_exists(const char* filename);`
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<br />
## [get_active_mod](#get_active_mod)
### Description
Gets the mod currently being processed
### Lua Example
`local modValue = get_active_mod()`
### Parameters
- None
### Returns
- [Mod](structs.md#Mod)
### C Prototype
`struct Mod* get_active_mod(void);`
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<br />
## [get_mod_files](#get_mod_files)
### Description
Gets all files a mod contains
### Lua Example
`local tableValue = get_mod_files(mod, subDirectory)`
### Parameters
| Field | Type |
| ----- | ---- |
| mod | [Mod](structs.md#Mod) |
| subDirectory | `string` |
### Returns
- `table`
### C Prototype
`LuaTable get_mod_files(struct Mod* mod, OPTIONAL const char* subDirectory);`
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<br />
## [set_window_title](#set_window_title)
### Description
Sets the window title to a custom title
### Lua Example
`set_window_title(title)`
### Parameters
| Field | Type |
| ----- | ---- |
| title | `string` |
### Returns
- None
### C Prototype
`void set_window_title(const char* title);`
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<br />
## [reset_window_title](#reset_window_title)
### Description
Resets the window title
### Lua Example
`reset_window_title()`
### Parameters
- None
### Returns
- None
### C Prototype
`void reset_window_title(void);`
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<br />
## [get_os_name](#get_os_name)
### Description
Gets the name of the operating system the game is running on
### Lua Example
`local stringValue = get_os_name()`
### Parameters
- None
### Returns
- `string`
### C Prototype
`const char* get_os_name(void);`
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<br />
## [geo_get_current_root](#geo_get_current_root)
### Description
Gets the current root node being processed
### Lua Example
`local graphNodeRootValue = geo_get_current_root()`
### Parameters
- None
### Returns
- [GraphNodeRoot](structs.md#GraphNodeRoot)
### C Prototype
`struct GraphNodeRoot* geo_get_current_root(void);`
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<br />
## [geo_get_current_master_list](#geo_get_current_master_list)
### Description
Gets the current master list node being processed
### Lua Example
`local graphNodeMasterListValue = geo_get_current_master_list()`
### Parameters
- None
### Returns
- [GraphNodeMasterList](structs.md#GraphNodeMasterList)
### C Prototype
`struct GraphNodeMasterList* geo_get_current_master_list(void);`
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<br />
## [geo_get_current_perspective](#geo_get_current_perspective)
### Description
Gets the current perspective node being processed
### Lua Example
`local graphNodePerspectiveValue = geo_get_current_perspective()`
### Parameters
- None
### Returns
- [GraphNodePerspective](structs.md#GraphNodePerspective)
### C Prototype
`struct GraphNodePerspective* geo_get_current_perspective(void);`
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<br />
## [geo_get_current_camera](#geo_get_current_camera)
### Description
Gets the current camera node being processed
### Lua Example
`local graphNodeCameraValue = geo_get_current_camera()`
### Parameters
- None
### Returns
- [GraphNodeCamera](structs.md#GraphNodeCamera)
### C Prototype
`struct GraphNodeCamera* geo_get_current_camera(void);`
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<br />
## [geo_get_current_held_object](#geo_get_current_held_object)
### Description
Gets the current held object node being processed
### Lua Example
`local graphNodeHeldObjectValue = geo_get_current_held_object()`
### Parameters
- None
### Returns
- [GraphNodeHeldObject](structs.md#GraphNodeHeldObject)
### C Prototype
`struct GraphNodeHeldObject* geo_get_current_held_object(void);`
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<br />
## [geo_skip_interpolation](#geo_skip_interpolation)
### Description
Skips graph node interpolation for a frame
### Lua Example
`geo_skip_interpolation(node, obj)`
### Parameters
| Field | Type |
| ----- | ---- |
| node | [GraphNode](structs.md#GraphNode) |
| obj | [GraphNodeObject](structs.md#GraphNodeObject) |
### Returns
- None
### C Prototype
`void geo_skip_interpolation(struct GraphNode *node, struct GraphNodeObject *obj);`
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<br />
## [texture_to_lua_table](#texture_to_lua_table)
### Description
Converts a texture's pixels to a Lua table. Returns nil if failed. Otherwise, returns a 1-indexed table of RGBA pixels
### Lua Example
`local tableValue = texture_to_lua_table(tex)`
### Parameters
| Field | Type |
| ----- | ---- |
| tex | `Pointer` <`Texture`> |
### Returns
- `table`
### C Prototype
`LuaTable texture_to_lua_table(const Texture *tex);`
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<br />
## [get_texture_name](#get_texture_name)
### Description
Gets the name of the provided texture pointer `tex`
### Lua Example
`local stringValue = get_texture_name(tex)`
### Parameters
| Field | Type |
| ----- | ---- |
| tex | `Pointer` <`Texture`> |
### Returns
- `string`
### C Prototype
`const char *get_texture_name(const Texture *tex);`
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<br />
---
# functions from smlua_model_utils.h
<br />
## [smlua_model_util_get_id](#smlua_model_util_get_id)
### Description
Gets the extended model ID for the `name` of a `GeoLayout`
### Lua Example
`local enumValue = smlua_model_util_get_id(name)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
### Returns
- [enum ModelExtendedId](constants.md#enum-ModelExtendedId)
### C Prototype
`enum ModelExtendedId smlua_model_util_get_id(const char* name);`
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<br />
---
# functions from smlua_obj_utils.h
<br />
## [spawn_sync_object](#spawn_sync_object)
### Description
Spawns a synchronized object at `x`, `y`, and `z` as a child object of the local Mario with his rotation. You can change the fields of the object in `objSetupFunction`
### Lua Example
`local objectValue = spawn_sync_object(behaviorId, modelId, x, y, z, objSetupFunction)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
| x | `number` |
| y | `number` |
| z | `number` |
| objSetupFunction | `Lua Function` () |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object* spawn_sync_object(enum BehaviorId behaviorId, enum ModelExtendedId modelId, f32 x, f32 y, f32 z, LuaFunction objSetupFunction);`
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<br />
## [spawn_non_sync_object](#spawn_non_sync_object)
### Description
Spawns a non-synchronized object at `x`, `y`, and `z` as a child object of the local Mario with his rotation. You can change the fields of the object in `objSetupFunction`
### Lua Example
`local objectValue = spawn_non_sync_object(behaviorId, modelId, x, y, z, objSetupFunction)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
| x | `number` |
| y | `number` |
| z | `number` |
| objSetupFunction | `Lua Function` () |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object* spawn_non_sync_object(enum BehaviorId behaviorId, enum ModelExtendedId modelId, f32 x, f32 y, f32 z, LuaFunction objSetupFunction);`
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<br />
## [obj_has_behavior_id](#obj_has_behavior_id)
### Description
Checks if an object has `behaviorId`
### Lua Example
`local integerValue = obj_has_behavior_id(o, behaviorId)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
### Returns
- `integer`
### C Prototype
`s32 obj_has_behavior_id(struct Object *o, enum BehaviorId behaviorId);`
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<br />
## [obj_has_model_extended](#obj_has_model_extended)
### Description
Checks if an object's model is equal to `modelId`
### Lua Example
`local integerValue = obj_has_model_extended(o, modelId)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
### Returns
- `integer`
### C Prototype
`s32 obj_has_model_extended(struct Object *o, enum ModelExtendedId modelId);`
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<br />
## [obj_get_model_id_extended](#obj_get_model_id_extended)
### Description
Returns an object's extended model id
### Lua Example
`local enumValue = obj_get_model_id_extended(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- [enum ModelExtendedId](constants.md#enum-ModelExtendedId)
### C Prototype
`enum ModelExtendedId obj_get_model_id_extended(struct Object *o);`
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<br />
## [obj_set_model_extended](#obj_set_model_extended)
### Description
Sets an object's model to `modelId`
### Lua Example
`obj_set_model_extended(o, modelId)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
### Returns
- None
### C Prototype
`void obj_set_model_extended(struct Object *o, enum ModelExtendedId modelId);`
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<br />
## [get_trajectory](#get_trajectory)
### Description
Gets a trajectory by `name`
### Lua Example
`local pointerValue = get_trajectory(name)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
### Returns
- `Pointer` <`Trajectory`>
### C Prototype
`Trajectory* get_trajectory(const char* name);`
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<br />
## [geo_get_current_object](#geo_get_current_object)
### Description
When used in a geo function, retrieve the current processed object
### Lua Example
`local objectValue = geo_get_current_object()`
### Parameters
- None
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *geo_get_current_object(void);`
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<br />
## [get_current_object](#get_current_object)
### Description
Gets the object currently being processed
### Lua Example
`local objectValue = get_current_object()`
### Parameters
- None
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *get_current_object(void);`
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<br />
## [get_dialog_object](#get_dialog_object)
### Description
Gets the NPC object Mario is talking to
### Lua Example
`local objectValue = get_dialog_object()`
### Parameters
- None
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *get_dialog_object(void);`
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<br />
## [get_cutscene_focus](#get_cutscene_focus)
### Description
Gets the cutscene focus object
### Lua Example
`local objectValue = get_cutscene_focus()`
### Parameters
- None
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *get_cutscene_focus(void);`
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<br />
## [get_secondary_camera_focus](#get_secondary_camera_focus)
### Description
Gets the secondary camera focus object
### Lua Example
`local objectValue = get_secondary_camera_focus()`
### Parameters
- None
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *get_secondary_camera_focus(void);`
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<br />
## [set_cutscene_focus](#set_cutscene_focus)
### Description
Sets the cutscene focus object
### Lua Example
`set_cutscene_focus(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- None
### C Prototype
`void set_cutscene_focus(struct Object *o);`
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<br />
## [set_secondary_camera_focus](#set_secondary_camera_focus)
### Description
Sets the secondary camera focus object
### Lua Example
`set_secondary_camera_focus(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- None
### C Prototype
`void set_secondary_camera_focus(struct Object *o);`
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<br />
## [obj_get_first](#obj_get_first)
### Description
Gets the first object in an object list
### Lua Example
`local objectValue = obj_get_first(objList)`
### Parameters
| Field | Type |
| ----- | ---- |
| objList | [enum ObjectList](constants.md#enum-ObjectList) |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_first(enum ObjectList objList);`
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<br />
## [obj_get_first_with_behavior_id](#obj_get_first_with_behavior_id)
### Description
Gets the first object loaded with `behaviorId`
### Lua Example
`local objectValue = obj_get_first_with_behavior_id(behaviorId)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_first_with_behavior_id(enum BehaviorId behaviorId);`
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<br />
## [obj_get_first_with_behavior_id_and_field_s32](#obj_get_first_with_behavior_id_and_field_s32)
### Description
Gets the first object loaded with `behaviorId` and object signed 32-bit integer field (look in `object_fields.h` to get the index of a field)
### Lua Example
`local objectValue = obj_get_first_with_behavior_id_and_field_s32(behaviorId, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
| fieldIndex | `integer` |
| value | `integer` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_first_with_behavior_id_and_field_s32(enum BehaviorId behaviorId, s32 fieldIndex, s32 value);`
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<br />
## [obj_get_first_with_behavior_id_and_field_f32](#obj_get_first_with_behavior_id_and_field_f32)
### Description
Gets the first object loaded with `behaviorId` and object float field (look in `object_fields.h` to get the index of a field)
### Lua Example
`local objectValue = obj_get_first_with_behavior_id_and_field_f32(behaviorId, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
| fieldIndex | `integer` |
| value | `number` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_first_with_behavior_id_and_field_f32(enum BehaviorId behaviorId, s32 fieldIndex, f32 value);`
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<br />
## [obj_get_next](#obj_get_next)
### Description
Gets the next object in an object list
### Lua Example
`local objectValue = obj_get_next(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_next(struct Object *o);`
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<br />
## [obj_get_next_with_same_behavior_id](#obj_get_next_with_same_behavior_id)
### Description
Gets the next object loaded with the same behavior ID
### Lua Example
`local objectValue = obj_get_next_with_same_behavior_id(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_next_with_same_behavior_id(struct Object *o);`
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<br />
## [obj_get_next_with_same_behavior_id_and_field_s32](#obj_get_next_with_same_behavior_id_and_field_s32)
### Description
Gets the next object loaded with the same behavior ID and object signed 32-bit integer field (look in `object_fields.h` to get the index of a field)
### Lua Example
`local objectValue = obj_get_next_with_same_behavior_id_and_field_s32(o, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| value | `integer` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_next_with_same_behavior_id_and_field_s32(struct Object *o, s32 fieldIndex, s32 value);`
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<br />
## [obj_get_next_with_same_behavior_id_and_field_f32](#obj_get_next_with_same_behavior_id_and_field_f32)
### Description
Gets the next object loaded with the same behavior ID and object float field (look in `object_fields.h` to get the index of a field)
### Lua Example
`local objectValue = obj_get_next_with_same_behavior_id_and_field_f32(o, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| value | `number` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_next_with_same_behavior_id_and_field_f32(struct Object *o, s32 fieldIndex, f32 value);`
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<br />
## [obj_get_nearest_object_with_behavior_id](#obj_get_nearest_object_with_behavior_id)
### Description
Gets the nearest object with `behaviorId` to `o`
### Lua Example
`local objectValue = obj_get_nearest_object_with_behavior_id(o, behaviorId)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_nearest_object_with_behavior_id(struct Object *o, enum BehaviorId behaviorId);`
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<br />
## [obj_count_objects_with_behavior_id](#obj_count_objects_with_behavior_id)
### Description
Counts every object with `behaviorId`
### Lua Example
`local integerValue = obj_count_objects_with_behavior_id(behaviorId)`
### Parameters
| Field | Type |
| ----- | ---- |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
### Returns
- `integer`
### C Prototype
`s32 obj_count_objects_with_behavior_id(enum BehaviorId behaviorId);`
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<br />
## [obj_get_collided_object](#obj_get_collided_object)
### Description
Gets the corresponding collided object to an index from `o`
### Lua Example
`local objectValue = obj_get_collided_object(o, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| index | `integer` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object *obj_get_collided_object(struct Object *o, s16 index);`
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<br />
## [obj_get_field_u32](#obj_get_field_u32)
### Description
Gets the unsigned 32-bit integer value from the field corresponding to `fieldIndex`
### Lua Example
`local integerValue = obj_get_field_u32(o, fieldIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
### Returns
- `integer`
### C Prototype
`u32 obj_get_field_u32(struct Object *o, s32 fieldIndex);`
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<br />
## [obj_get_field_s32](#obj_get_field_s32)
### Description
Gets the signed 32-bit integer value from the field corresponding to `fieldIndex`
### Lua Example
`local integerValue = obj_get_field_s32(o, fieldIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
### Returns
- `integer`
### C Prototype
`s32 obj_get_field_s32(struct Object *o, s32 fieldIndex);`
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<br />
## [obj_get_field_f32](#obj_get_field_f32)
### Description
Sets the float value from the field corresponding to `fieldIndex`
### Lua Example
`local numberValue = obj_get_field_f32(o, fieldIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
### Returns
- `number`
### C Prototype
`f32 obj_get_field_f32(struct Object *o, s32 fieldIndex);`
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<br />
## [obj_get_field_s16](#obj_get_field_s16)
### Description
Gets the signed 32-bit integer value from the sub field corresponding to `fieldSubIndex` from the field corresponding to `fieldIndex`
### Lua Example
`local integerValue = obj_get_field_s16(o, fieldIndex, fieldSubIndex)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| fieldSubIndex | `integer` |
### Returns
- `integer`
### C Prototype
`s16 obj_get_field_s16(struct Object *o, s32 fieldIndex, s32 fieldSubIndex);`
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<br />
## [obj_set_field_u32](#obj_set_field_u32)
### Description
Sets the unsigned 32-bit integer value from the field corresponding to `fieldIndex`
### Lua Example
`obj_set_field_u32(o, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void obj_set_field_u32(struct Object *o, s32 fieldIndex, u32 value);`
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<br />
## [obj_set_field_s32](#obj_set_field_s32)
### Description
Sets the signed 32-bit integer value from the field corresponding to `fieldIndex`
### Lua Example
`obj_set_field_s32(o, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void obj_set_field_s32(struct Object *o, s32 fieldIndex, s32 value);`
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<br />
## [obj_set_field_f32](#obj_set_field_f32)
### Description
Sets the float value from the field corresponding to `fieldIndex`
### Lua Example
`obj_set_field_f32(o, fieldIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| value | `number` |
### Returns
- None
### C Prototype
`void obj_set_field_f32(struct Object *o, s32 fieldIndex, f32 value);`
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<br />
## [obj_set_field_s16](#obj_set_field_s16)
### Description
Sets the signed 32-bit integer value from the sub field corresponding to `fieldSubIndex` from the field corresponding to `fieldIndex`
### Lua Example
`obj_set_field_s16(o, fieldIndex, fieldSubIndex, value)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| fieldIndex | `integer` |
| fieldSubIndex | `integer` |
| value | `integer` |
### Returns
- None
### C Prototype
`void obj_set_field_s16(struct Object *o, s32 fieldIndex, s32 fieldSubIndex, s16 value);`
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<br />
## [obj_get_temp_spawn_particles_info](#obj_get_temp_spawn_particles_info)
### Description
Returns a temporary particle spawn info pointer with its model loaded in from `modelId`
### Lua Example
`local spawnParticlesInfoValue = obj_get_temp_spawn_particles_info(modelId)`
### Parameters
| Field | Type |
| ----- | ---- |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
### Returns
- [SpawnParticlesInfo](structs.md#SpawnParticlesInfo)
### C Prototype
`struct SpawnParticlesInfo* obj_get_temp_spawn_particles_info(enum ModelExtendedId modelId);`
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<br />
## [obj_get_temp_water_droplet_params](#obj_get_temp_water_droplet_params)
### Description
Returns a temporary water droplet params pointer with its model and behavior loaded in from `modelId` and `behaviorId`
### Lua Example
`local waterDropletParamsValue = obj_get_temp_water_droplet_params(modelId, behaviorId)`
### Parameters
| Field | Type |
| ----- | ---- |
| modelId | [enum ModelExtendedId](constants.md#enum-ModelExtendedId) |
| behaviorId | [enum BehaviorId](constants.md#enum-BehaviorId) |
### Returns
- [WaterDropletParams](structs.md#WaterDropletParams)
### C Prototype
`struct WaterDropletParams* obj_get_temp_water_droplet_params(enum ModelExtendedId modelId, enum BehaviorId behaviorId);`
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<br />
## [get_temp_object_hitbox](#get_temp_object_hitbox)
### Description
Returns a temporary object hitbox pointer
### Lua Example
`local objectHitboxValue = get_temp_object_hitbox()`
### Parameters
- None
### Returns
- [ObjectHitbox](structs.md#ObjectHitbox)
### C Prototype
`struct ObjectHitbox* get_temp_object_hitbox(void);`
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<br />
## [obj_is_attackable](#obj_is_attackable)
### Description
Checks if `o` is attackable
### Lua Example
`local booleanValue = obj_is_attackable(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_attackable(struct Object *o);`
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<br />
## [obj_is_breakable_object](#obj_is_breakable_object)
### Description
Checks if `o` is breakable
### Lua Example
`local booleanValue = obj_is_breakable_object(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_breakable_object(struct Object *o);`
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<br />
## [obj_is_bully](#obj_is_bully)
### Description
Checks if `o` is a Bully
### Lua Example
`local booleanValue = obj_is_bully(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_bully(struct Object *o);`
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<br />
## [obj_is_coin](#obj_is_coin)
### Description
Checks if `o` is a coin
### Lua Example
`local booleanValue = obj_is_coin(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_coin(struct Object *o);`
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<br />
## [obj_is_exclamation_box](#obj_is_exclamation_box)
### Description
Checks if `o` is an exclamation box
### Lua Example
`local booleanValue = obj_is_exclamation_box(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_exclamation_box(struct Object *o);`
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<br />
## [obj_is_grabbable](#obj_is_grabbable)
### Description
Checks if `o` is grabbable
### Lua Example
`local booleanValue = obj_is_grabbable(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_grabbable(struct Object *o);`
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<br />
## [obj_is_mushroom_1up](#obj_is_mushroom_1up)
### Description
Checks if `o` is a 1-Up Mushroom
### Lua Example
`local booleanValue = obj_is_mushroom_1up(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_mushroom_1up(struct Object *o);`
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<br />
## [obj_is_secret](#obj_is_secret)
### Description
Checks if `o` is a secret
### Lua Example
`local booleanValue = obj_is_secret(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_secret(struct Object *o);`
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<br />
## [obj_is_valid_for_interaction](#obj_is_valid_for_interaction)
### Description
Checks if `o` is activated, tangible, and interactible
### Lua Example
`local booleanValue = obj_is_valid_for_interaction(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_is_valid_for_interaction(struct Object *o);`
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<br />
## [obj_check_hitbox_overlap](#obj_check_hitbox_overlap)
### Description
Checks if `o1`'s hitbox is colliding with `o2`'s hitbox
### Lua Example
`local booleanValue = obj_check_hitbox_overlap(o1, o2)`
### Parameters
| Field | Type |
| ----- | ---- |
| o1 | [Object](structs.md#Object) |
| o2 | [Object](structs.md#Object) |
### Returns
- `boolean`
### C Prototype
`bool obj_check_hitbox_overlap(struct Object *o1, struct Object *o2);`
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<br />
## [obj_check_overlap_with_hitbox_params](#obj_check_overlap_with_hitbox_params)
### Description
Checks if `o`'s hitbox is colliding with the parameters of a hitbox
### Lua Example
`local booleanValue = obj_check_overlap_with_hitbox_params(o, x, y, z, h, r, d)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| x | `number` |
| y | `number` |
| z | `number` |
| h | `number` |
| r | `number` |
| d | `number` |
### Returns
- `boolean`
### C Prototype
`bool obj_check_overlap_with_hitbox_params(struct Object *o, f32 x, f32 y, f32 z, f32 h, f32 r, f32 d);`
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<br />
## [obj_set_vel](#obj_set_vel)
### Description
Sets an object's velocity to `vx`, `vy`, and `vz`
### Lua Example
`obj_set_vel(o, vx, vy, vz)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| vx | `number` |
| vy | `number` |
| vz | `number` |
### Returns
- None
### C Prototype
`void obj_set_vel(struct Object *o, f32 vx, f32 vy, f32 vz);`
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<br />
## [obj_move_xyz](#obj_move_xyz)
### Description
Moves the object in the direction of `dx`, `dy`, and `dz`
### Lua Example
`obj_move_xyz(o, dx, dy, dz)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| dx | `number` |
| dy | `number` |
| dz | `number` |
### Returns
- None
### C Prototype
`void obj_move_xyz(struct Object *o, f32 dx, f32 dy, f32 dz);`
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<br />
## [set_whirlpools](#set_whirlpools)
### Description
Sets the parameters of one of the two whirlpools (0-indexed) in an area
### Lua Example
`set_whirlpools(x, y, z, strength, area, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| x | `number` |
| y | `number` |
| z | `number` |
| strength | `integer` |
| area | `integer` |
| index | `integer` |
### Returns
- None
### C Prototype
`void set_whirlpools(f32 x, f32 y, f32 z, s16 strength, s16 area, s32 index);`
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<br />
## [obj_skip_interpolation](#obj_skip_interpolation)
### Description
Skips object interpolation for a frame
### Lua Example
`obj_skip_interpolation(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- None
### C Prototype
`void obj_skip_interpolation(struct Object *o);`
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<br />
## [obj_anim_skip_interpolation](#obj_anim_skip_interpolation)
### Description
Skips animation interpolation for a frame
### Lua Example
`obj_anim_skip_interpolation(o)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
### Returns
- None
### C Prototype
`void obj_anim_skip_interpolation(struct Object *o);`
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<br />
---
# functions from smlua_text_utils.h
<br />
## [smlua_text_utils_reset_all](#smlua_text_utils_reset_all)
### Description
Resets every modified dialog back to vanilla
### Lua Example
`smlua_text_utils_reset_all()`
### Parameters
- None
### Returns
- None
### C Prototype
`void smlua_text_utils_reset_all(void);`
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<br />
## [smlua_text_utils_dialog_get](#smlua_text_utils_dialog_get)
### Description
Gets the DialogEntry struct for the given `dialogId`
### Lua Example
`local dialogEntryValue = smlua_text_utils_dialog_get(dialogId)`
### Parameters
| Field | Type |
| ----- | ---- |
| dialogId | [enum DialogId](constants.md#enum-DialogId) |
### Returns
- [DialogEntry](structs.md#DialogEntry)
### C Prototype
`struct DialogEntry* smlua_text_utils_dialog_get(enum DialogId dialogId);`
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<br />
## [smlua_text_utils_dialog_replace](#smlua_text_utils_dialog_replace)
### Description
Replaces `dialogId` with a custom one
### Lua Example
`smlua_text_utils_dialog_replace(dialogId, unused, linesPerBox, leftOffset, width, str)`
### Parameters
| Field | Type |
| ----- | ---- |
| dialogId | [enum DialogId](constants.md#enum-DialogId) |
| unused | `integer` |
| linesPerBox | `integer` |
| leftOffset | `integer` |
| width | `integer` |
| str | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_dialog_replace(enum DialogId dialogId, u32 unused, s8 linesPerBox, s16 leftOffset, s16 width, const char* str);`
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<br />
## [smlua_text_utils_dialog_restore](#smlua_text_utils_dialog_restore)
### Description
Restores a replaced DialogEntry to its original state.
### Lua Example
`smlua_text_utils_dialog_restore(dialogId)`
### Parameters
| Field | Type |
| ----- | ---- |
| dialogId | [enum DialogId](constants.md#enum-DialogId) |
### Returns
- None
### C Prototype
`void smlua_text_utils_dialog_restore(enum DialogId dialogId);`
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<br />
## [smlua_text_utils_dialog_is_replaced](#smlua_text_utils_dialog_is_replaced)
### Description
Returns whether the dialog with the given ID has been replaced
### Lua Example
`local booleanValue = smlua_text_utils_dialog_is_replaced(dialogId)`
### Parameters
| Field | Type |
| ----- | ---- |
| dialogId | [enum DialogId](constants.md#enum-DialogId) |
### Returns
- `boolean`
### C Prototype
`bool smlua_text_utils_dialog_is_replaced(enum DialogId dialogId);`
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<br />
## [smlua_text_utils_allocate_dialog](#smlua_text_utils_allocate_dialog)
### Description
Allocates a new dialog entry
### Lua Example
`local integerValue = smlua_text_utils_allocate_dialog()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s32 smlua_text_utils_allocate_dialog(void);`
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<br />
## [smlua_text_utils_course_acts_replace](#smlua_text_utils_course_acts_replace)
### Description
Replaces the act names of `courseNum`
### Lua Example
`smlua_text_utils_course_acts_replace(courseNum, courseName, act1, act2, act3, act4, act5, act6)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| courseName | `string` |
| act1 | `string` |
| act2 | `string` |
| act3 | `string` |
| act4 | `string` |
| act5 | `string` |
| act6 | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_course_acts_replace(s16 courseNum, const char* courseName, const char* act1, const char* act2, const char* act3, const char* act4, const char* act5, const char* act6);`
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<br />
## [smlua_text_utils_secret_star_replace](#smlua_text_utils_secret_star_replace)
### Description
Replaces the secret star course name of `courseNum` with `courseName`
### Lua Example
`smlua_text_utils_secret_star_replace(courseNum, courseName)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| courseName | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_secret_star_replace(s16 courseNum, const char* courseName);`
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<br />
## [smlua_text_utils_course_name_replace](#smlua_text_utils_course_name_replace)
### Description
Replaces the name of `courseNum` with `name`
### Lua Example
`smlua_text_utils_course_name_replace(courseNum, name)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| name | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_course_name_replace(s16 courseNum, const char* name);`
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<br />
## [smlua_text_utils_course_name_get](#smlua_text_utils_course_name_get)
### Description
Gets the name of `courseNum`
### Lua Example
`local stringValue = smlua_text_utils_course_name_get(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- `string`
### C Prototype
`const char* smlua_text_utils_course_name_get(s16 courseNum);`
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<br />
## [smlua_text_utils_course_name_mod_index](#smlua_text_utils_course_name_mod_index)
### Description
Gets the index of the mod that replaced the name of `courseNum`
### Lua Example
`local integerValue = smlua_text_utils_course_name_mod_index(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- `integer`
### C Prototype
`s32 smlua_text_utils_course_name_mod_index(s16 courseNum);`
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<br />
## [smlua_text_utils_course_name_reset](#smlua_text_utils_course_name_reset)
### Description
Resets the name of `courseNum`
### Lua Example
`smlua_text_utils_course_name_reset(courseNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
### Returns
- None
### C Prototype
`void smlua_text_utils_course_name_reset(s16 courseNum);`
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<br />
## [smlua_text_utils_act_name_replace](#smlua_text_utils_act_name_replace)
### Description
Replaces the act name of `actNum` in `courseNum` with `name`
### Lua Example
`smlua_text_utils_act_name_replace(courseNum, actNum, name)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| actNum | `integer` |
| name | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_act_name_replace(s16 courseNum, u8 actNum, const char* name);`
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<br />
## [smlua_text_utils_act_name_get](#smlua_text_utils_act_name_get)
### Description
Gets the act name of `actNum` in `courseNum`
### Lua Example
`local stringValue = smlua_text_utils_act_name_get(courseNum, actNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| actNum | `integer` |
### Returns
- `string`
### C Prototype
`const char* smlua_text_utils_act_name_get(s16 courseNum, u8 actNum);`
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<br />
## [smlua_text_utils_act_name_mod_index](#smlua_text_utils_act_name_mod_index)
### Description
Gets the index of the mod that replaced the act name of `actNum` in `courseNum`
### Lua Example
`local integerValue = smlua_text_utils_act_name_mod_index(courseNum, actNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| actNum | `integer` |
### Returns
- `integer`
### C Prototype
`s32 smlua_text_utils_act_name_mod_index(s16 courseNum, u8 actNum);`
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<br />
## [smlua_text_utils_act_name_reset](#smlua_text_utils_act_name_reset)
### Description
Resets the act name of `actNum` in `courseNum`
### Lua Example
`smlua_text_utils_act_name_reset(courseNum, actNum)`
### Parameters
| Field | Type |
| ----- | ---- |
| courseNum | `integer` |
| actNum | `integer` |
### Returns
- None
### C Prototype
`void smlua_text_utils_act_name_reset(s16 courseNum, u8 actNum);`
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<br />
## [smlua_text_utils_castle_secret_stars_replace](#smlua_text_utils_castle_secret_stars_replace)
### Description
Replaces the castle secret stars text with `name`
### Lua Example
`smlua_text_utils_castle_secret_stars_replace(name)`
### Parameters
| Field | Type |
| ----- | ---- |
| name | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_castle_secret_stars_replace(const char* name);`
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<br />
## [smlua_text_utils_castle_secret_stars_get](#smlua_text_utils_castle_secret_stars_get)
### Description
Gets the castle secret stars text
### Lua Example
`local stringValue = smlua_text_utils_castle_secret_stars_get()`
### Parameters
- None
### Returns
- `string`
### C Prototype
`const char* smlua_text_utils_castle_secret_stars_get();`
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<br />
## [smlua_text_utils_castle_secret_stars_mod_index](#smlua_text_utils_castle_secret_stars_mod_index)
### Description
Gets the index of the mod that replaced the castle secret stars text
### Lua Example
`local integerValue = smlua_text_utils_castle_secret_stars_mod_index()`
### Parameters
- None
### Returns
- `integer`
### C Prototype
`s32 smlua_text_utils_castle_secret_stars_mod_index();`
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<br />
## [smlua_text_utils_castle_secret_stars_reset](#smlua_text_utils_castle_secret_stars_reset)
### Description
Resets the castle secret stars text
### Lua Example
`smlua_text_utils_castle_secret_stars_reset()`
### Parameters
- None
### Returns
- None
### C Prototype
`void smlua_text_utils_castle_secret_stars_reset();`
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<br />
## [smlua_text_utils_extra_text_replace](#smlua_text_utils_extra_text_replace)
### Description
Replace extra text (e.g. one of the castle's secret stars) with `text`
### Lua Example
`smlua_text_utils_extra_text_replace(index, text)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
| text | `string` |
### Returns
- None
### C Prototype
`void smlua_text_utils_extra_text_replace(s16 index, const char* text);`
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<br />
## [smlua_text_utils_extra_text_get](#smlua_text_utils_extra_text_get)
### Description
Gets the extra text at `index`
### Lua Example
`local stringValue = smlua_text_utils_extra_text_get(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `string`
### C Prototype
`const char* smlua_text_utils_extra_text_get(s16 index);`
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<br />
## [smlua_text_utils_extra_text_mod_index](#smlua_text_utils_extra_text_mod_index)
### Description
Gets the index of the mod that replaced the extra text at `index`
### Lua Example
`local integerValue = smlua_text_utils_extra_text_mod_index(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- `integer`
### C Prototype
`s32 smlua_text_utils_extra_text_mod_index(s16 index);`
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<br />
## [smlua_text_utils_extra_text_reset](#smlua_text_utils_extra_text_reset)
### Description
Resets the extra text at `index`
### Lua Example
`smlua_text_utils_extra_text_reset(index)`
### Parameters
| Field | Type |
| ----- | ---- |
| index | `integer` |
### Returns
- None
### C Prototype
`void smlua_text_utils_extra_text_reset(s16 index);`
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<br />
## [smlua_text_utils_get_language](#smlua_text_utils_get_language)
### Description
Gets the current language
### Lua Example
`local stringValue = smlua_text_utils_get_language()`
### Parameters
- None
### Returns
- `string`
### C Prototype
`const char* smlua_text_utils_get_language(void);`
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<br />
---
# functions from sound_init.h
<br />
## [reset_volume](#reset_volume)
### Description
Resets if music volume has been lowered
### Lua Example
`reset_volume()`
### Parameters
- None
### Returns
- None
### C Prototype
`void reset_volume(void);`
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<br />
## [raise_background_noise](#raise_background_noise)
### Description
Raises music volume back up to normal levels
### Lua Example
`raise_background_noise(a)`
### Parameters
| Field | Type |
| ----- | ---- |
| a | `integer` |
### Returns
- None
### C Prototype
`void raise_background_noise(s32 a);`
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<br />
## [lower_background_noise](#lower_background_noise)
### Description
Lowers the volume of music by 40%
### Lua Example
`lower_background_noise(a)`
### Parameters
| Field | Type |
| ----- | ---- |
| a | `integer` |
### Returns
- None
### C Prototype
`void lower_background_noise(s32 a);`
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<br />
## [disable_background_sound](#disable_background_sound)
### Description
Disables background soundbanks
### Lua Example
`disable_background_sound()`
### Parameters
- None
### Returns
- None
### C Prototype
`void disable_background_sound(void);`
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<br />
## [enable_background_sound](#enable_background_sound)
### Description
Enables background soundbanks
### Lua Example
`enable_background_sound()`
### Parameters
- None
### Returns
- None
### C Prototype
`void enable_background_sound(void);`
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<br />
## [play_menu_sounds](#play_menu_sounds)
### Description
Play menu sounds from `SOUND_MENU_FLAG_*` constants and queues rumble if `SOUND_MENU_FLAG_LETGOMARIOFACE` is one of the flags
### Lua Example
`play_menu_sounds(soundMenuFlags)`
### Parameters
| Field | Type |
| ----- | ---- |
| soundMenuFlags | `integer` |
### Returns
- None
### C Prototype
`void play_menu_sounds(s16 soundMenuFlags);`
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<br />
## [play_painting_eject_sound](#play_painting_eject_sound)
### Description
Plays the painting eject sound effect if it has not already been played
### Lua Example
`play_painting_eject_sound()`
### Parameters
- None
### Returns
- None
### C Prototype
`void play_painting_eject_sound(void);`
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<br />
## [play_infinite_stairs_music](#play_infinite_stairs_music)
### Description
Plays the infinite stairs music if you're in the endless stairs room and have less than `gLevelValues.infiniteStairsRequirement` stars
### Lua Example
`play_infinite_stairs_music()`
### Parameters
- None
### Returns
- None
### C Prototype
`void play_infinite_stairs_music(void);`
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<br />
## [set_background_music](#set_background_music)
### Description
Sets the background music to `seqArgs` on sequence player `a` with a fade in time of `fadeTimer`
### Lua Example
`set_background_music(a, seqArgs, fadeTimer)`
### Parameters
| Field | Type |
| ----- | ---- |
| a | `integer` |
| seqArgs | `integer` |
| fadeTimer | `integer` |
### Returns
- None
### C Prototype
`void set_background_music(u16 a, u16 seqArgs, s16 fadeTimer);`
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<br />
## [fadeout_music](#fadeout_music)
### Description
Fades out level, shell, and cap music
### Lua Example
`fadeout_music(fadeOutTime)`
### Parameters
| Field | Type |
| ----- | ---- |
| fadeOutTime | `integer` |
### Returns
- None
### C Prototype
`void fadeout_music(s16 fadeOutTime);`
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<br />
## [fadeout_level_music](#fadeout_level_music)
### Description
Fades out the level sequence player
### Lua Example
`fadeout_level_music(fadeTimer)`
### Parameters
| Field | Type |
| ----- | ---- |
| fadeTimer | `integer` |
### Returns
- None
### C Prototype
`void fadeout_level_music(s16 fadeTimer);`
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<br />
## [play_cutscene_music](#play_cutscene_music)
### Description
Plays and sets the current music to `seqArgs`
### Lua Example
`play_cutscene_music(seqArgs)`
### Parameters
| Field | Type |
| ----- | ---- |
| seqArgs | `integer` |
### Returns
- None
### C Prototype
`void play_cutscene_music(u16 seqArgs);`
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<br />
## [play_shell_music](#play_shell_music)
### Description
Plays shell music
### Lua Example
`play_shell_music()`
### Parameters
- None
### Returns
- None
### C Prototype
`void play_shell_music(void);`
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<br />
## [stop_shell_music](#stop_shell_music)
### Description
Stops shell music completely
### Lua Example
`stop_shell_music()`
### Parameters
- None
### Returns
- None
### C Prototype
`void stop_shell_music(void);`
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<br />
## [play_cap_music](#play_cap_music)
### Description
Plays `seqArgs` as cap music
### Lua Example
`play_cap_music(seqArgs)`
### Parameters
| Field | Type |
| ----- | ---- |
| seqArgs | `integer` |
### Returns
- None
### C Prototype
`void play_cap_music(u16 seqArgs);`
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<br />
## [fadeout_cap_music](#fadeout_cap_music)
### Description
Fades out cap music
### Lua Example
`fadeout_cap_music()`
### Parameters
- None
### Returns
- None
### C Prototype
`void fadeout_cap_music(void);`
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<br />
## [stop_cap_music](#stop_cap_music)
### Description
Stops cap music completely
### Lua Example
`stop_cap_music()`
### Parameters
- None
### Returns
- None
### C Prototype
`void stop_cap_music(void);`
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<br />
---
# functions from spawn_sound.h
<br />
## [cur_obj_play_sound_1](#cur_obj_play_sound_1)
### Description
Plays a sound if the current object is visible
### Lua Example
`cur_obj_play_sound_1(soundMagic)`
### Parameters
| Field | Type |
| ----- | ---- |
| soundMagic | `integer` |
### Returns
- None
### C Prototype
`void cur_obj_play_sound_1(s32 soundMagic);`
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<br />
## [cur_obj_play_sound_2](#cur_obj_play_sound_2)
### Description
Plays a sound if the current object is visible and queues rumble for specific sounds
### Lua Example
`cur_obj_play_sound_2(soundMagic)`
### Parameters
| Field | Type |
| ----- | ---- |
| soundMagic | `integer` |
### Returns
- None
### C Prototype
`void cur_obj_play_sound_2(s32 soundMagic);`
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<br />
## [create_sound_spawner](#create_sound_spawner)
### Description
Create a sound spawner for objects that need a sound play once. (Breakable walls, King Bobomb exploding, etc)
### Lua Example
`create_sound_spawner(soundMagic)`
### Parameters
| Field | Type |
| ----- | ---- |
| soundMagic | `integer` |
### Returns
- None
### C Prototype
`void create_sound_spawner(s32 soundMagic);`
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<br />
## [calc_dist_to_volume_range_1](#calc_dist_to_volume_range_1)
### Description
Unused vanilla function, calculates a volume based on `distance`. If `distance` is less than 500 then 127, if `distance` is greater than 1500 then 0, if `distance` is between 500 and 1500 then it ranges linearly from 60 to 124. What an even more strange and confusing function
### Lua Example
`local integerValue = calc_dist_to_volume_range_1(distance)`
### Parameters
| Field | Type |
| ----- | ---- |
| distance | `number` |
### Returns
- `integer`
### C Prototype
`s32 calc_dist_to_volume_range_1(f32 distance);`
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<br />
## [calc_dist_to_volume_range_2](#calc_dist_to_volume_range_2)
### Description
Unused vanilla function, calculates a volume based on `distance`. If `distance` is less than 1300 then 127, if `distance` is greater than 2300 then 0, if `distance` is between 1300 and 2300 then it ranges linearly from 60 to 127. What a strange and confusing function
### Lua Example
`local integerValue = calc_dist_to_volume_range_2(distance)`
### Parameters
| Field | Type |
| ----- | ---- |
| distance | `number` |
### Returns
- `integer`
### C Prototype
`s32 calc_dist_to_volume_range_2(f32 distance);`
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<br />
---
# functions from surface_collision.h
<br />
## [find_wall_collisions](#find_wall_collisions)
### Description
Detects wall collisions at a given position and adjusts the position based on the walls found. Returns the number of wall collisions detected
### Lua Example
`local integerValue = find_wall_collisions(colData)`
### Parameters
| Field | Type |
| ----- | ---- |
| colData | [WallCollisionData](structs.md#WallCollisionData) |
### Returns
- `integer`
### C Prototype
`s32 find_wall_collisions(struct WallCollisionData *colData);`
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<br />
## [find_ceil](#find_ceil)
### Description
Finds the height of the highest ceiling above a given position (x, y, z) and return the corresponding ceil surface. If no ceiling is found, returns the default height limit of `gLevelValues.cellHeightLimit`(20000 by default)
### Lua Example
`local numberValue, pceil = find_ceil(posX, posY, posZ)`
### Parameters
| Field | Type |
| ----- | ---- |
| posX | `number` |
| posY | `number` |
| posZ | `number` |
### Returns
- `number`
- [Surface](structs.md#Surface)
### C Prototype
`f32 find_ceil(f32 posX, f32 posY, f32 posZ, RET struct Surface **pceil);`
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<br />
## [find_ceil_height](#find_ceil_height)
### Description
Finds the height of the highest ceiling above a given position (x, y, z). If no ceiling is found, returns the default height limit of `gLevelValues.cellHeightLimit`(20000 by default)
### Lua Example
`local numberValue = find_ceil_height(x, y, z)`
### Parameters
| Field | Type |
| ----- | ---- |
| x | `number` |
| y | `number` |
| z | `number` |
### Returns
- `number`
### C Prototype
`f32 find_ceil_height(f32 x, f32 y, f32 z);`
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<br />
## [find_floor_height](#find_floor_height)
### Description
Finds the height of the highest floor below a given position (x, y, z). If no floor is found, returns the default floor height of `gLevelValues.floorLowerLimit`(-11000 by default)
### Lua Example
`local numberValue = find_floor_height(x, y, z)`
### Parameters
| Field | Type |
| ----- | ---- |
| x | `number` |
| y | `number` |
| z | `number` |
### Returns
- `number`
### C Prototype
`f32 find_floor_height(f32 x, f32 y, f32 z);`
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<br />
## [find_floor](#find_floor)
### Description
Finds the height of the highest floor below a given position (x, y, z) and return the corresponding floor surface. If no floor is found, returns the default floor height of `gLevelValues.floorLowerLimit`(-11000 by default)
### Lua Example
`local numberValue, pfloor = find_floor(xPos, yPos, zPos)`
### Parameters
| Field | Type |
| ----- | ---- |
| xPos | `number` |
| yPos | `number` |
| zPos | `number` |
### Returns
- `number`
- [Surface](structs.md#Surface)
### C Prototype
`f32 find_floor(f32 xPos, f32 yPos, f32 zPos, RET struct Surface **pfloor);`
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<br />
## [find_water_level](#find_water_level)
### Description
Finds the height of water at a given position (x, z), if the position is within a water region. If no water is found, returns the default height of `gLevelValues.floorLowerLimit`(-11000 by default)
### Lua Example
`local numberValue = find_water_level(x, z)`
### Parameters
| Field | Type |
| ----- | ---- |
| x | `number` |
| z | `number` |
### Returns
- `number`
### C Prototype
`f32 find_water_level(f32 x, f32 z);`
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<br />
## [find_poison_gas_level](#find_poison_gas_level)
### Description
Finds the height of the poison gas at a given position (x, z), if the position is within a gas region. If no gas is found, returns the default height of `gLevelValues.floorLowerLimit`(-11000 by default)
### Lua Example
`local numberValue = find_poison_gas_level(x, z)`
### Parameters
| Field | Type |
| ----- | ---- |
| x | `number` |
| z | `number` |
### Returns
- `number`
### C Prototype
`f32 find_poison_gas_level(f32 x, f32 z);`
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<br />
## [set_find_wall_direction](#set_find_wall_direction)
### Description
Sets whether collision finding functions should check wall directions.
### Lua Example
`set_find_wall_direction(dir, active, airborne)`
### Parameters
| Field | Type |
| ----- | ---- |
| dir | [Vec3f](structs.md#Vec3f) |
| active | `boolean` |
| airborne | `boolean` |
### Returns
- None
### C Prototype
`void set_find_wall_direction(Vec3f dir, bool active, bool airborne);`
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## [closest_point_to_triangle](#closest_point_to_triangle)
### Description
Gets the closest point of the triangle to `src` and returns it in `out`.
### Lua Example
`closest_point_to_triangle(surf, src, out)`
### Parameters
| Field | Type |
| ----- | ---- |
| surf | [Surface](structs.md#Surface) |
| src | [Vec3f](structs.md#Vec3f) |
| out | [Vec3f](structs.md#Vec3f) |
### Returns
- None
### C Prototype
`void closest_point_to_triangle(struct Surface* surf, Vec3f src, VEC_OUT Vec3f out);`
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---
# functions from surface_load.h
<br />
## [load_object_collision_model](#load_object_collision_model)
### Description
Loads the object's collision data into dynamic collision. You must run this every frame in your object's behavior loop for it to have collision
### Lua Example
`load_object_collision_model()`
### Parameters
- None
### Returns
- None
### C Prototype
`void load_object_collision_model(void);`
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<br />
## [load_static_object_collision](#load_static_object_collision)
### Description
Loads the object's collision data into static collision. You may run this only once to capture the object's collision at that frame.
### Lua Example
`local staticObjectCollisionValue = load_static_object_collision()`
### Parameters
- None
### Returns
- [StaticObjectCollision](structs.md#StaticObjectCollision)
### C Prototype
`struct StaticObjectCollision *load_static_object_collision();`
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## [toggle_static_object_collision](#toggle_static_object_collision)
### Description
Toggles a collection of static object surfaces
### Lua Example
`toggle_static_object_collision(col, tangible)`
### Parameters
| Field | Type |
| ----- | ---- |
| col | [StaticObjectCollision](structs.md#StaticObjectCollision) |
| tangible | `boolean` |
### Returns
- None
### C Prototype
`void toggle_static_object_collision(struct StaticObjectCollision *col, bool tangible);`
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## [get_static_object_surface](#get_static_object_surface)
### Description
Gets a surface corresponding to `index` from the static object collision
### Lua Example
`local surfaceValue = get_static_object_surface(col, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| col | [StaticObjectCollision](structs.md#StaticObjectCollision) |
| index | `integer` |
### Returns
- [Surface](structs.md#Surface)
### C Prototype
`struct Surface *get_static_object_surface(struct StaticObjectCollision *col, u32 index);`
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## [remove_static_object_collision](#remove_static_object_collision)
### Description
Removes all surfaces belonging to a static object collision and reclaims the SOC metadata
### Lua Example
`remove_static_object_collision(col)`
### Parameters
| Field | Type |
| ----- | ---- |
| col | [StaticObjectCollision](structs.md#StaticObjectCollision) |
### Returns
- None
### C Prototype
`void remove_static_object_collision(struct StaticObjectCollision *col);`
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## [obj_get_surface_from_index](#obj_get_surface_from_index)
### Description
Gets a surface corresponding to `index` from the surface pool buffer
### Lua Example
`local surfaceValue = obj_get_surface_from_index(o, index)`
### Parameters
| Field | Type |
| ----- | ---- |
| o | [Object](structs.md#Object) |
| index | `integer` |
### Returns
- [Surface](structs.md#Surface)
### C Prototype
`struct Surface *obj_get_surface_from_index(struct Object *o, u32 index);`
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## [surface_has_force](#surface_has_force)
### Description
Checks if a surface has force
### Lua Example
`local booleanValue = surface_has_force(surfaceType)`
### Parameters
| Field | Type |
| ----- | ---- |
| surfaceType | `integer` |
### Returns
- `boolean`
### C Prototype
`bool surface_has_force(s16 surfaceType);`
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---
# functions from sync_object.h
<br />
## [sync_object_get_object](#sync_object_get_object)
### Description
Retrieves an object from a sync ID
### Lua Example
`local objectValue = sync_object_get_object(syncId)`
### Parameters
| Field | Type |
| ----- | ---- |
| syncId | `integer` |
### Returns
- [Object](structs.md#Object)
### C Prototype
`struct Object* sync_object_get_object(u32 syncId);`
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## [sync_object_is_initialized](#sync_object_is_initialized)
### Description
Checks if a sync object is initialized using a `syncId`
### Lua Example
`local booleanValue = sync_object_is_initialized(syncId)`
### Parameters
| Field | Type |
| ----- | ---- |
| syncId | `integer` |
### Returns
- `boolean`
### C Prototype
`bool sync_object_is_initialized(u32 syncId);`
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## [sync_object_is_owned_locally](#sync_object_is_owned_locally)
### Description
Checks if a sync object is owned locally using a `syncId`
### Lua Example
`local booleanValue = sync_object_is_owned_locally(syncId)`
### Parameters
| Field | Type |
| ----- | ---- |
| syncId | `integer` |
### Returns
- `boolean`
### C Prototype
`bool sync_object_is_owned_locally(u32 syncId);`
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<br />
---
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