Function TrainCanLeaveTile

src/train_cmd.cpp:3839–3859

* Determines whether train would like to leave the tile * @param v train to test * @return true iff vehicle is NOT entering or inside a depot or tunnel/bridge */

 * @return true iff vehicle is NOT entering or inside a depot or tunnel/bridge
 */
static bool TrainCanLeaveTile(const Train *v)
{
	/* Exit if inside a tunnel/bridge or a depot */
	if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;

	TileIndex tile = v->tile;

	/* entering a tunnel/bridge? */
	if (IsTileType(tile, MP_TUNNELBRIDGE)) {
		DiagDirection dir = GetTunnelBridgeDirection(tile);
		if (DiagDirToDir(dir) == v->direction) return false;
	}

	/* entering a depot? */
	if (IsRailDepotTile(tile)) {
		DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
		if (DiagDirToDir(dir) == v->direction) return false;
	}

	return true;
}


/**