Method addLight

src/Battlescape/TileEngine.cpp:195–220

* Adds circular light pattern starting from center and losing power with distance travelled. * @param center Center. * @param power Power. * @param layer Light is separated in 3 layers: Ambient, Static and Dynamic. */

 * @param layer Light is separated in 3 layers: Ambient, Static and Dynamic.
 */
void TileEngine::addLight(const Position &center, int power, int layer)
{
	// only loop through the positive quadrant.
	for (int x = 0; x <= power; ++x)
	{
		for (int y = 0; y <= power; ++y)
		{
			for (int z = 0; z < _save->getMapSizeZ(); z++)
			{
				int distance = (int)Round(sqrt(float(x*x + y*y)));

				if (_save->getTile(Position(center.x + x,center.y + y, z)))
					_save->getTile(Position(center.x + x,center.y + y, z))->addLight(power - distance, layer);

				if (_save->getTile(Position(center.x - x,center.y - y, z)))
					_save->getTile(Position(center.x - x,center.y - y, z))->addLight(power - distance, layer);

				if (_save->getTile(Position(center.x - x,center.y + y, z)))
					_save->getTile(Position(center.x - x,center.y + y, z))->addLight(power - distance, layer);

				if (_save->getTile(Position(center.x + x,center.y - y, z)))
					_save->getTile(Position(center.x + x,center.y - y, z))->addLight(power - distance, layer);
			}
		}
	}
}

/**
 * Calculates line of sight of a soldier.