C语言贪食蛇游戏

2019PHP高薪工程师学习路线图....>>>

开发环境vc6.0
#include <graphics.h>
#include <stdlib.h>
#include <conio.h>
#include <time.h>
#include <stdio.h>
#include "snake.h"

int score = 0;
int gamespeed = 100;				//蛇运行速度

static void Init(void);             /*图形驱动*/
static void Close(void);            /*图形结束*/
static void Game_interface(void);   /*游戏界面*/
static void GameOver(void);         /*结束游戏*/
static void GamePlay(void);         /*游戏过程*/
static void PrScore(void);          /*输出成绩*/

/*主函数*/
int main(void)
{
     Init();                 
     Game_interface();                 
     GamePlay();              
     Close();                 
	 return 0;
}

/*图形驱动*/
static void Init(void)
{
	int gd=9,gm=2;

	initgraph(&gd,&gm," ");
	cleardevice();
}

/* 开始画面,左上角坐标为(50,40),右下角坐标为(610,460)的围墙 */
static void Game_interface(void)
{
     int i;

	 setcolor(LIGHTCYAN);							/*setbkcolor(LIGHTGREEN);*/
     setlinestyle(PS_SOLID,0,1);					/*设置线型*/
     for(i=50;i<=600;i+=10)							/*画边框*/
     {
         rectangle(i,40,i+10,49);					/*上边框*/
         rectangle(i,451,i+10,460);					/*下边框*/
     }
     for(i=40;i<=450;i+=10)
     {
         rectangle(50,i,59,i+10);					/*左边框*/
         rectangle(601,i,610,i+10);					/*右边框*/
     }
}

/* 游戏主函数 */
static void GamePlay(void)
{
     int i;
	 
	 srand(time(NULL));								/*随机数发生器*/
     food.yes = 1;                                  /*1表示需要出现新食物,0表示已经存在食物*/
     snake.life = 0;                                /*活着*/
     snake.direction = 1;                           /*方向往右*/
     snake.x[0] = 100;
	 snake.y[0] = 100;								
     snake.x[1] = 110;
	 snake.y[1] = 100;
     snake.node = 2;								/*节数*/

     PrScore();										/*输出得分*/
     while(1)										/*可以重复玩游戏,压ESC键结束*/
     {
         while( !kbhit() )                          /*在没有按键的情况下,蛇自己移动*/
         {
             if(food.yes == 1)                      /*需要出现新食物*/
             {
                 food.x = rand()%400 + 60;
                 food.y = rand()%350 + 60;
                 while(food.x%10 != 0)              /*食物随机出现后必须让食物能够在整格内,这样才可以让蛇吃到*/
                     food.x++;
                 while(food.y%10 != 0)
                     food.y++;
                 food.yes = 0;                      /*画面上有食物了*/
             }
             if(food.yes == 0)                      /*画面上有食物了就要显示*/
             {
                 setcolor(GREEN);
                 rectangle(food.x,food.y,food.x + 10,food.y - 10);
             }


             for(i=snake.node-1;i>0;i--)          /*蛇的每个环节往前移动,也就是贪吃蛇的关键算法*/
             {
                 snake.x[i] = snake.x[i-1];
                 snake.y[i] = snake.y[i-1];
             }
             /*1,2,3,4表示右,左,上,下四个方向,通过这个判断来移动蛇头*/
             switch(snake.direction)
             {
                 case 1: 
					 snake.x[0] += 10;
					 break;
                 case 2: 
					 snake.x[0] -= 10;
					 break;
                 case 3: 
					 snake.y[0] -= 10;
					 break;
                 case 4: 
					 snake.y[0] += 10;
					 break;
             }
             /* 从蛇的第四节开始判断是否撞到自己 */
             for(i=3;i<snake.node;i++)
             {
                 if((snake.x[i] == snake.x[0]) && (snake.y[i] == snake.y[0]))
                 {
                     GameOver();                  /*显示失败*/
                     snake.life = 1;
                     break;
                 }
             }
             if((snake.x[0] < 55) || (snake.x[0] > 595) || (snake.y[0] < 55) || (snake.y[0] > 455))     /*蛇是否撞到墙壁*/
             {


                 GameOver();											/*本次游戏结束*/
                 snake.life = 1;										/*蛇死*/
             }
             if(snake.life == 1)										/*以上两种判断以后,如果蛇死就跳出内循环,重新开始*/
                 break;
             if((snake.x[0] == food.x) && (snake.y[0] == food.y))		/*吃到食物以后*/
             {
                 setcolor(BLACK);										/*把画面上的食物东西去掉*/
                 rectangle(food.x,food.y,food.x+10,food.y-10);
                 snake.x[snake.node] = -20;
				 snake.y[snake.node] = -20;

                 /* 新的一节先放在看不见的位置,下次循环就取前一节的位置 */

                 snake.node++;						/*蛇的身体长一节*/
                 food.yes = 1;                      /*画面上需要出现新的食物*/
                 score += 10;
                 PrScore();							/*输出新得分*/
             }
             setcolor(RED);                         /*画出蛇*/


             for(i=0;i<snake.node;i++)
                 rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10);
             Sleep(gamespeed);
             setcolor(BLACK);                        /*用黑色去除蛇的的最后一节*/
             rectangle(snake.x[snake.node-1],snake.y[snake.node-1],
                       snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);
         }        /*endwhile(!kbhit)*/
         
		 if(snake.life == 1)                        /*如果蛇死就跳出循环*/
             break;
         
		 key=getch();                          /*接收按键*/
		 if (key == ESC) break;					 /*按ESC键退出*/
         
		 switch(key)
         {                                 
             case UP:
                 if(snake.direction != 4)           /*判断是否往相反的方向移动*/
                     snake.direction = 3;
                 break;
             case RIGHT:
                 if(snake.direction != 2)
                     snake.direction = 1;
                 break;
             case LEFT:
                 if(snake.direction != 1)
                     snake.direction = 2;
                 break;
             case DOWN:
                 if(snake.direction != 3)
                     snake.direction = 4;
                 break;
         }

     }/*endwhile(1)*/
}

/*游戏结束*/
static void GameOver(void)
{
     cleardevice();
     PrScore();
     setcolor(RED);
     setfont(56,0,"黑体");
     outtextxy(200,200,"GAME OVER");
     getch();
}

/*输出成绩*/
static void PrScore(void)
{
     char str[10];

     setfillstyle(YELLOW);
     bar(50,15,220,35);
     setcolor(BROWN);
     setfont(16,0,"宋体");
     sprintf(str,"score:%d",score);
     outtextxy(55,16,str);
}

static void Close(void)
{
     closegraph();
}
#ifndef SNAKE_H
#define	SNAKE_H


#define LEFT 'a'
#define RIGHT 'd'
#define DOWN 's'
#define UP 'w'
#define ESC 27

#define N 200				/*蛇的最大长度*/

char key;					/*控制按键*/


struct Food
{
     int x;                   /*食物的横坐标*/
     int y;                   /*食物的纵坐标*/
     int yes;                 /*判断是否要出现食物的变量*/
}food;						  /*食物的结构体*/

struct Snake
{
     int x[N];
     int y[N];
     int node;                /*蛇的节数*/
     int direction;           /*蛇移动方向*/
     int life;                /* 蛇的生命,0活着,1死亡*/
}snake;



#endif