21 

    22 private:

    23 	int32 Valuate(int32 tile) const;

    24 };

    25 

    26 /**

    27  * Check how tiles in an AITileList instance are sloped.

    28  * @note resulting items are of the type int32 (0 = flat, > 1 = slope)

    29  * @note the input items are of the type TileIndex

    30  */

    31 class AITileListSlope : public AIAbstractList::Valuator {

    32 public:

    33 	/**

    34 	 * The name of the class, needed by several sub-processes.

    35 	 */

    36 	static const char *GetClassName() { return "AITileListSlope"; }