c语言Win32下的贪吃蛇

#include <stdio.h>

#include <stdlib.h>
#include <time.h>

#include "pcc32.h"
#pragma comment(lib, "pcc32_vc6.lib") // 在VC6.0中添加这一句

// 定义地图的尺寸及坐标(均使用双字符长度)
#define MAP_WIDTH     16
#define MAP_HEIGHT    16
#define OFFSET_X      1
#define OFFSET_Y      1
#define TOTAL_WIDTH   (MAP_WIDTH+OFFSET_X*2)
#define TOTAL_HEIGHT  (MAP_HEIGHT+OFFSET_Y*2)
#define GotoMap(x,y)  gotoTextPos((x)*2,(y))

// 定义蛇的相关参数
#define SNAKE_MIN_LEN   5

// 定义地图块的状态,分别为[空格|蛇头|蛇身|蛇尾|食物]
#define BS_SPACE    0
#define BS_HEAD     1
#define BS_BODY     2
#define BS_TAIL     3
#define BS_FOOD     4

// 定义各对象的颜色,形状,顺序同上.
PCCOLOR myColors[] = {CYAN, MAGENTA, RED, GREEN, YELLOW};
char mySharps[][3] = {"□", "◆", "■", "＋", "★"};

// 定义蛇的运动方向[上|下|左|右]
#define DIR_UP    1
#define DIR_DOWN  2
#define DIR_LEFT  3
#define DIR_RIGHT 4

typedef struct _POINT2D
{
  uint8 x, y;
}POINT2D, *PPOINT2D;

POINT2D mySnake[MAP_WIDTH*MAP_HEIGHT] = {{0}};
POINT2D myFood = {0};
int snakeLength = SNAKE_MIN_LEN;
int snakeDir = DIR_RIGHT;
int isFood = 0;
int isOver = 0;

void drawMap(void);
void initSnake(void);
void drawSnake(void);
void moveSnake(void);
void drawBlock(int x, int y, int bs);
int isInSnake(int x, int y);
void drawFood(void);
void doGame(void);
void gameOver(void);

int main()