Method IsIn

src/signal.cpp:139–146

* Tries to find given tile and dir in the set * @param tile tile * @param dir and dir to find * @return true iff the tile & dir element was found */

	 * @return true iff the tile & dir element was found
	 */
	bool IsIn(TileIndex tile, Tdir dir)
	{
		for (uint i = 0; i < this->n; i++) {
			if (this->data[i].tile == tile && this->data[i].dir == dir) return true;
		}

		return false;
	}

	/**
	 * Adds tile & dir into the set, checks for full set