Function RocketControl

TombEngine/Game/Lara/lara_one_gun.cpp:980–1043

}

void RocketControl(short itemNumber)
{
	auto& rocketItem = g_Level.Items[itemNumber];

	// Update velocity and orientation.
	if (TestEnvironment(ENV_FLAG_WATER, rocketItem.RoomNumber))
	{
		if (rocketItem.Animation.Velocity.z > (ROCKET_VELOCITY / 4))
		{
			rocketItem.Animation.Velocity.z -= rocketItem.Animation.Velocity.z / 4;
		}
		else
		{
			rocketItem.Animation.Velocity.z += (rocketItem.Animation.Velocity.z / 4) + 4.0f;

			if (rocketItem.Animation.Velocity.z > (ROCKET_VELOCITY / 4))
				rocketItem.Animation.Velocity.z = ROCKET_VELOCITY / 4;
		}

		rocketItem.Pose.Orientation.z += short((rocketItem.Animation.Velocity.z / 8) + 3.0f) * ANGLE(1.0f);
	}
	else
	{
		if (rocketItem.Animation.Velocity.z < ROCKET_VELOCITY)
			rocketItem.Animation.Velocity.z += (rocketItem.Animation.Velocity.z / 4) + 4.0f;

		rocketItem.Pose.Orientation.z += short((rocketItem.Animation.Velocity.z / 4) + 7.0f) * ANGLE(1.0f);
	}

	rocketItem.Model.Color = Vector4(0.5f, 0.5f, 0.5f, 1.0f);

	// Calculate offset in rocket direction for fire and smoke sparks.
	auto world = Matrix::CreateTranslation(0, 0, -64) *
				 Matrix::CreateFromYawPitchRoll(
					TO_RAD(rocketItem.Pose.Orientation.y - ANGLE(180.0f)),
					TO_RAD(rocketItem.Pose.Orientation.x),
					TO_RAD(rocketItem.Pose.Orientation.z));

	int wx = world.Translation().x;
	int wy = world.Translation().y;
	int wz = world.Translation().z;

	// Trigger fire, smoke, and light.
	TriggerRocketSmoke(wx + rocketItem.Pose.Position.x, wy + rocketItem.Pose.Position.y, wz + rocketItem.Pose.Position.z);
	TriggerRocketFire(wx + rocketItem.Pose.Position.x, wy + rocketItem.Pose.Position.y, wz + rocketItem.Pose.Position.z);
	SpawnDynamicLight(
		wx + rocketItem.Pose.Position.x + (GetRandomControl() & 15) - 8, 
		wy + rocketItem.Pose.Position.y + (GetRandomControl() & 15) - 8, 
		wz + rocketItem.Pose.Position.z + (GetRandomControl() & 15) - 8, 
		14, 28 + (GetRandomControl() & 3), 16 + (GetRandomControl() & 7), (GetRandomControl() & 7));

	// Spawn bubbles underwater.
	if (TestEnvironment(ENV_FLAG_WATER, rocketItem.RoomNumber))
	{
		auto pos = rocketItem.Pose.Position.ToVector3() + Vector3(wx, wy, wz);
		SpawnBubble(pos, rocketItem.RoomNumber);
	}