2226 			// Clear the tunnel and continue at the other side of it.

  2226 			// Clear the tunnel and continue at the other side of it.

  2227 			if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR)))

  2227 			if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR)))

  2228 				return false;

  2228 				return false;

  2229 			_players_ai[p->index].cur_tile_a = TILE_MASK(_build_tunnel_endtile - TileOffsByDiagDir(_players_ai[p->index].cur_dir_a));

  2229 			_players_ai[p->index].cur_tile_a = TILE_MASK(_build_tunnel_endtile - TileOffsByDiagDir(_players_ai[p->index].cur_dir_a));

  2230 			return true;

  2230 			return true;

  2232 			// Check if the bridge points in the right direction.

  2232 			// Check if the bridge points in the right direction.

  2233 			// This is not really needed the first place AiRemoveTileAndGoForward is called.

  2233 			// This is not really needed the first place AiRemoveTileAndGoForward is called.

  2234 			if (DiagDirToAxis(GetTunnelBridgeDirection(tile)) != (_players_ai[p->index].cur_dir_a & 1)) return false;

  2234 			if (DiagDirToAxis(GetTunnelBridgeDirection(tile)) != (_players_ai[p->index].cur_dir_a & 1)) return false;

  2235 

  2235 

  2236 			tile = GetOtherBridgeEnd(tile);

  2236 			tile = GetOtherBridgeEnd(tile);