Tunnels
The tile set that supplies the four road tunnel mouths, one per facing.
- Applies to
- tile controls
- File
theater control file- Section
[General]- Value
- integer
- When omitted
-1No tile set is bound to the role.
A cell holding one of these four pieces becomes a tunnel entrance, provided its tile artwork reports the Tunnel land type. The engine checks each such cell that has no tunnel yet whenever it works out the cell’s terrain.
The piece’s position in the set sets the tunnel’s entry facing:
| Piece | Entry facing |
|---|---|
| First | East |
| Second | South |
| Third | West |
| Fourth | North |
A tile can fall inside more than one of the four tunnel roles. The engine tests them in this order and uses the first that contains the tile:
TunnelsTrackTunnelsDirtTunnelsDirtTrackTunnels
With the role unresolved, the theater’s first three tiles match as the second, third and fourth pieces, but only if their artwork reports Tunnel land.
Route-finding links a tunnel cell to its tunnel’s exit when the cell’s two neighbors along one axis are also tunnel cells, so a route can pass through the tunnel.