fix some script errors in mods that pass in nil objects

technically this is the mod's fault, but this is more consistent behavior for a cheap fix

autogen/convert_functions.py

@@ -868,7 +868,9 @@ def build_param(fid, param, i):
         else:
             s = '  ' + s
 
-        return s + '\n'
+        sanity_check = '    if (lua_isnil(L, %d)) { return 0; }\n' % (i)
+
+        return sanity_check + s + '\n'
 
 def build_param_after(param, i):
     ptype = param['type']

autogen/lua_definitions/constants.lua

@@ -11219,6 +11219,9 @@ SOUND_TERRAIN_WATER = 2
 --- @type integer
 SOUND_VIBRATO = 0x2000000
 
+--- @type integer
+HAZARD_TYPE_HORIZONTAL_WIND = 4
+
 --- @type integer
 HAZARD_TYPE_LAVA_FLOOR = 1
 
@@ -11228,9 +11231,6 @@ HAZARD_TYPE_LAVA_WALL = 2
 --- @type integer
 HAZARD_TYPE_QUICKSAND = 3
 
---- @type integer
-HAZARD_TYPE_HORIZONTAL_WIND = 4
-
 --- @type integer
 HAZARD_TYPE_VERTICAL_WIND = 5
 

docs/lua/constants.md

@@ -4704,10 +4704,10 @@
 <br />
 
 ## [surface_terrains.h](#surface_terrains.h)
+- HAZARD_TYPE_HORIZONTAL_WIND
 - HAZARD_TYPE_LAVA_FLOOR
 - HAZARD_TYPE_LAVA_WALL
 - HAZARD_TYPE_QUICKSAND
-- HAZARD_TYPE_HORIZONTAL_WIND
 - HAZARD_TYPE_VERTICAL_WIND
 - SURFACE_0004
 - SURFACE_BOSS_FIGHT_CAMERA

src/pc/lua/smlua_constants_autogen.c

@@ -4741,4 +4741,4 @@ char gSmluaConstants[] = ""
 "VERSION_NUMBER=40\n"
 "MINOR_VERSION_NUMBER=0\n"
 "MAX_VERSION_LENGTH=128\n"
-;
+;