Function ControlMissile

TombEngine/Game/missile.cpp:62–152

TODO: Make ControlMissile() not use LaraItem global. -- TokyoSU 5/8/2022

// TODO: Make ControlMissile() not use LaraItem global. -- TokyoSU 5/8/2022
void ControlMissile(short fxNumber)
{
	static const int hitRadius = 200;

	// TODO: Add fx.target (ItemInfo* target) to get the actual target (if it was really it).
	auto& fx = EffectList[fxNumber];

	auto isUnderwater = TestEnvironment(ENV_FLAG_WATER, fx.roomNumber);
	auto soundFXType = isUnderwater ? SoundEnvironment::Underwater : SoundEnvironment::Land;

	// Make harpoon arch downwards if not underwater.
	if (fx.objectNumber == ID_SCUBA_HARPOON && !isUnderwater && fx.pos.Orientation.x > ANGLE(-67.5f))
		fx.pos.Orientation.x -= ANGLE(1.0f);

	fx.pos.Translate(fx.pos.Orientation, fx.speed);

	auto pointColl = GetPointCollision(fx.pos.Position, fx.roomNumber);
	auto hasHitPlayer = ItemNearLara(fx.pos.Position, hitRadius);

	// Check whether something was hit.
	if (fx.pos.Position.y >= pointColl.GetFloorHeight() ||
		fx.pos.Position.y <= pointColl.GetCeilingHeight() ||
		pointColl.IsWall() ||
		hasHitPlayer)
	{
		if (fx.objectNumber == ID_KNIFETHROWER_KNIFE ||
			fx.objectNumber == ID_SCUBA_HARPOON ||
			fx.objectNumber == ID_PROJ_SHARD)
		{
			SoundEffect((fx.objectNumber == ID_SCUBA_HARPOON) ? SFX_TR4_WEAPON_RICOCHET : SFX_TR2_CIRCLE_BLADE_HIT, &fx.pos, soundFXType);
		}
		else if (fx.objectNumber == ID_PROJ_BOMB)
		{
			SpawnDecal(fx.pos.Position.ToVector3(), fx.roomNumber, DecalType::Explosion);
			SoundEffect(SFX_TR1_ATLANTEAN_EXPLODE, &fx.pos, soundFXType);
			TriggerExplosionSparks(fx.pos.Position.x, fx.pos.Position.y, fx.pos.Position.z, 3, -2, 0, fx.roomNumber);
			TriggerExplosionSparks(fx.pos.Position.x, fx.pos.Position.y, fx.pos.Position.z, 3, -1, 0, fx.roomNumber);
			TriggerShockwave(&fx.pos, 48, 304, (GetRandomControl() & 0x1F) + 112, 128, 32, 32, 32, EulerAngles(2048, 0.0f, 0.0f), 0, true, false, false, (int)ShockwaveStyle::Normal);
		}

		if (hasHitPlayer)
		{
			if (fx.objectNumber == ID_KNIFETHROWER_KNIFE)
			{
				DoDamage(LaraItem, KNIFE_DAMAGE);
			}
			else if (fx.objectNumber == ID_SCUBA_HARPOON)
			{
				DoDamage(LaraItem, DIVER_HARPOON_DAMAGE);
			}
			else if (fx.objectNumber == ID_PROJ_BOMB)
			{
				DoDamage(LaraItem, MUTANT_BOMB_DAMAGE);
			}
			else if (fx.objectNumber == ID_PROJ_SHARD)
			{
				TriggerBlood(fx.pos.Position.x, fx.pos.Position.y, fx.pos.Position.z, 0, 10);
				SoundEffect(SFX_TR4_BLOOD_LOOP, &fx.pos, soundFXType);