void stop();
- bool canWalk(const Tile* tile, Direction dir); /**< check if we can leave "tile" in direction "dir" */
+ bool canWalk(int tile_data, Direction dir); /**< check if we can leave a tile (with given "tile_data") in direction "dir" */
void updateInputDirection(); /**< if controller was pressed, update input_direction */
void tryStartWalking(); /**< try starting to walk in input_direction */
void tryContinueWalking(float elapsed_time); /**< try to continue walking in current direction */