Function ShootAtEnemy

TombEngine/Game/missile.cpp:35–59

constexpr auto KNIFE_DAMAGE			= 50;

void ShootAtEnemy(Vector3i target, ItemInfo* item, int index)
{
	constexpr auto RANDOM_ORIENT = 1.4f;

	if (item == nullptr || index <= NO_VALUE)
		return;

	// If target deviated too much from the item position, prefer item's own position.
	if (Vector3i::Distance(item->Pose.Position, target) > TARGET_DEVIATION_THRESHOLD)
		target = item->Pose.Position;

	auto bounds = GameBoundingBox(item);
	auto yOffset = bounds.Y2 - (bounds.GetHeight() * 0.75f);
	auto targetWithOffset = Vector3(target.x, item->Pose.Position.y + yOffset, target.z);

	// Apply slight random scatter.
	auto randomOrient = EulerAngles(
		Random::GenerateAngle(ANGLE(-RANDOM_ORIENT), ANGLE(RANDOM_ORIENT)),
		Random::GenerateAngle(ANGLE(-RANDOM_ORIENT), ANGLE(RANDOM_ORIENT)),
		0);

	auto& fx = EffectList[index];
	fx.pos.Orientation = Geometry::GetOrientToPoint(fx.pos.Position.ToVector3(), targetWithOffset);
	fx.pos.Orientation += randomOrient;
}

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