DrawTile_Track,           /* draw_tile_proc */

	GetSlopeZ_Track,          /* get_slope_z_proc */

	ClearTile_Track,          /* clear_tile_proc */

	GetAcceptedCargo_Track,   /* get_accepted_cargo_proc */

	GetTileDesc_Track,        /* get_tile_desc_proc */

	GetTileTrackStatus_Track, /* get_tile_track_status_proc */

	ClickTile_Track,          /* click_tile_proc */

	AnimateTile_Track,        /* animate_tile_proc */

	TileLoop_Track,           /* tile_loop_clear */

	ChangeTileOwner_Track,    /* change_tile_owner_clear */

	NULL,                     /* get_produced_cargo_proc */

	VehicleEnter_Track,       /* vehicle_enter_tile_proc */

	GetSlopeTileh_Track,      /* get_slope_tileh_proc */