www.pudn.com > Snake.rar > snake.h

/*++ 
 
Copyright (c) 2004-2005  AFE(Active-Free-Elegance) 
 
Module Name: 
 
    snake.h 
 
Abstract: 
 
    the class of Snake,including the basic-method  
	such as : move,born,and eat,and so on. 
 
Author: 
 
 
    Weijian Luo (Arthur Luo)   15-Jun-2005 
 
	E-mail: skybluehacker@yahoo.com.cn 
 
Revision History:      1.0 
 
--*/ 
 
#ifndef _GREED_SNAKE_ 
#define _GREED_SNAKE_ 
 
#define SNAKE_MOVE 1 
#define SAFE_DELETE(p) {delete (p);(p)=NULL;} 
#define SAFE_DELETE_ARRAY(p) {delete[](p);(p)=NULL;} 
 
#include  
 
//节点图像显示运动状态(方向) 
enum BitmapState{M_NONE,M_UP_UP,M_DOWN_DOWN,M_LEFT_LEFT,M_RIGHT_RIGHT, 
			M_UP_LEFT,M_UP_RIGHT,M_LEFT_UP,M_LEFT_DOWN, 
			M_RIGHT_UP,M_RIGHT_DOWN,M_DOWN_RIGHT,M_DOWN_LEFT}; 
 
//节点运动状态(方向) 
enum MoveState{S_NONE,S_UP,S_DOWN,S_LEFT,S_RIGHT}; 
 
//坐标位置结构 
struct SPoint 
{ 
	int x; 
	int y; 
}; 
 
class CSnake 
{ 
	struct Snake_Struct//定义蛇体状态 
	{ 
		MoveState head;  //头部 
		MoveState *body; //身体 
		MoveState tail; //尾部 
	}; 
	 
	private: 
		int m_length;                 //蛇的长度 
		Snake_Struct m_newSnake;      //蛇的新态的所有节点运动状态 
		Snake_Struct m_oldSnake;      //蛇的原态的所有节点运动状态 
		BitmapState *m_pStateArray;   //蛇的所有节点显示位图的状态 
		SPoint *m_pPos;                //蛇体坐标 
		 
	private: 
		BitmapState GetRightState(MoveState oldDirect,MoveState newDirect); 
		 
	public: 
		 
		void Move(void);           
		void ChangeDirect(MoveState d); 
		void AddBody(int n=1); 
		void SetHeadPos(int x,int y); 
		BitmapState* GetStateArray(void); 
		SPoint* GetPos(void); 
		bool IsHeadTouchBody(int x,int y); 
		int GetLength( void ); 
		void Initial( void ); 
		 
	public: 
		CSnake(int x_pos=0,int y_pos=0,int len=1); 
		~CSnake(); 
}; 
 
 
#endif //_GREED_SNAKE_