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objects/battle-ufo.cpp: refactor to make some use of srb2::Mobj

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This commit is contained in:
James R 2023-12-03 10:12:13 -08:00
parent ada9263374
commit ca1bbfd53f
1 changed files with 24 additions and 15 deletions
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39
src/objects/battle-ufo.cpp
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@ -2,6 +2,9 @@
#include <iterator>
#include <set>
#include "../math/fixed.hpp"
#include "../mobj.hpp"
#include "../doomdef.h"
#include "../m_random.h"
#include "../p_local.h"
@ -9,36 +12,45 @@
#include "../k_objects.h"
#include "../k_kart.h"
using srb2::math::Fixed;
using srb2::Mobj;
#define BATTLEUFO_LEG_ZOFFS (3*FRACUNIT) // Spawn height offset from the body
#define BATTLEUFO_LEGS (3) // Number of UFO legs to spawn
#define BATTLEUFO_BOB_AMP (4) // UFO bob strength
#define BATTLEUFO_BOB_SPEED (TICRATE*2) // UFO bob speed
#define spawner_id(o) ((o)->thing_args[0])
#define ufo_spawner(o) ((o)->target)
namespace
{
struct Spawner : mobj_t
struct Spawner : Mobj
{
INT32 id() const { return spawner_id(this); }
void thing_args() = delete;
INT32 id() const { return this->mobj_t::thing_args[0]; }
};
struct UFO : mobj_t
struct UFO : Mobj
{
Spawner* spawner() const { return static_cast<Spawner*>(ufo_spawner(this)); }
void spawner(Spawner* n) { P_SetTarget(&ufo_spawner(this), n); }
void target() = delete;
Spawner* spawner() const { return Mobj::target<Spawner>(); }
void spawner(Spawner* n) { Mobj::target(n); }
void spawn_beam()
{
mobj_t *x;
Mobj *x = spawn_from<Mobj>({0, 0, height / 4}, MT_BATTLEUFO_BEAM);
x = P_SpawnMobjFromMobj(this, 0, 0, FixedDiv(this->height / 4, this->scale), MT_BATTLEUFO_BEAM);
x->renderflags |= RF_FLOORSPRITE|RF_NOSPLATBILLBOARD|RF_SLOPESPLAT|RF_NOSPLATROLLANGLE;
x->colorized = true;
x->color = SKINCOLOR_SAPPHIRE;
}
void bob()
{
// Copied and slightly modified from k_kart.c
Fixed sine = (BATTLEUFO_BOB_AMP * Fixed {FSIN(M_TAU_FIXED * BATTLEUFO_BOB_SPEED * leveltime)}) / 4;
momz = flip(sine * scale());
}
};
struct SpawnerCompare
@ -123,10 +135,7 @@ void Obj_BattleUFOThink(mobj_t *mobj)
{
UFO* ufo = static_cast<UFO*>(mobj);
// Copied and slightly modified from k_kart.c
fixed_t sine = (BATTLEUFO_BOB_AMP * FINESINE((((M_TAU_FIXED * BATTLEUFO_BOB_SPEED) * leveltime) >> ANGLETOFINESHIFT) & FINEMASK)) / 4;
fixed_t targz = FixedMul(ufo->scale, sine) * P_MobjFlip(ufo);
ufo->momz = targz;
ufo->bob();
if ((leveltime/2) & 1)
{