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#ifndef _SNAKE_H_
#define _SNAKE_H_
#include <rtthread.h>
#define snake_length_max 20 //����߳�
#define snake_length_init 3 //��ʼ���߳�
#define snake_room_size_hight 8 //���Ӹ� 0-255 ����>8
#define snake_room_size_widht 8 //���ӿ� 0-255 ����>8
#define snake_init_pointx 1
#define snake_init_pointy 2
typedef struct
{
rt_int32_t x, y;
} point_t;
typedef struct
{
rt_int32_t width; // max x
rt_int32_t height; // max y
rt_uint8_t *range; // map, map->range[y * map->width + x]
point_t snake_flush[2];
point_t food_flush[1];
} map_t;
typedef enum
{
SNAKE_DIR_UP,
SNAKE_DIR_DOWN,
SNAKE_DIR_LEFT,
SNAKE_DIR_RIGHT
} SNAKE_DIR;
typedef enum
{
FOOD, // �Ե�ˮ��
OVER, // ҧ������
NORMAL // �����ж�
} SYS_STE;
typedef struct
{
point_t body;
rt_list_t list;
} snake_t;
// ����һ����ͼ
map_t *map_init(rt_uint32_t width, rt_uint32_t heigth);
// ����һ��ָ�����ȵ�����ָ����
rt_bool_t snake_init(const point_t *start, const int length, const SNAKE_DIR dir, map_t *map);
// �����ʳ��
rt_bool_t food_init(map_t *map, rt_uint32_t max_num);
void map_deinit(map_t *map);
void snake_deinit(void);
void food_deinit(void);
SYS_STE snake_step(SNAKE_DIR dir, map_t *map);
rt_bool_t snake_restart(const point_t *start, const int length, const SNAKE_DIR dir, map_t *map);
#endif
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