Function AddSideToSignalBuffer

src/signal.cpp:621–635

* Add side of tile to signal update buffer * * @param tile tile where we start * @param side side of tile * @param owner owner whose signals we will update */

 * @param owner owner whose signals we will update
 */
void AddSideToSignalBuffer(TileIndex tile, DiagDirection side, Owner owner)
{
	/* do not allow signal updates for two companies in one run */
	assert(_globset.IsEmpty() || owner == _last_owner);

	_last_owner = owner;

	_globset.Add(tile, side);

	if (_globset.Items() >= SIG_GLOB_UPDATE) {
		/* too many items, force update */
		UpdateSignalsInBuffer(_last_owner);
		_last_owner = INVALID_OWNER;
	}
}

/**
 * Update signals, starting at one side of a tile