C语言小游戏源代码《贪吃蛇》#define N 200/*定义全局常量*/#define m 25#include <graphics.h>#include <math.h>#include <stdlib.h>#include <dos.h>#define LEFT 0x4b00#define RIGHT 0x4d00#define DOWN 0x5000#define UP 0x4800#define Esc 0x011bint i,j,key,k;struct Food/*构造食物结构体*/ {int x;int y;int yes;}food;struct Goods/*构造宝贝结构体*/ {int x;int y;int yes;}goods;struct Block/*构造障碍物结构体*/ {int x[m];int y[m];int yes;}block;struct Snake{/*构造蛇结构体*/int x[N];int y[N];int node;int direction;int life;}snake;struct Game/*构建游戏级别参数体*/ {int score;int level;int speed;}game;/*定义函数*/void init(void);/*定义图形驱动*/void close(void);/*定义关闭函数*/void drawk(void);/*定义界面函数*/void gameover(void);/*定义游戏结束函数*/void gameplay(void);/*定义游戏主函数*/void prscore(void);/*定义得分函数*/void main(void){/*主函数体，调用以下四个函数*/init();setbkcolor(7);drawk();gameplay();close();}void init(void){/*构建图形驱动函数*/int gd=DETECT,gm;initgraph(&gd,&gm,"");cleardevice();}void drawk(void){/*构建游戏界面函数*//*setbkcolor(LIGHTGREEN);*/char str3[50];setfillstyle(SOLID_FILL,BLUE);/*条型边框,显示版本信息*/ bar3d(48,9,610,38,1,45);setcolor(YELLOW);/*版本信息*/sprintf(str3,"Version:5.01,Powerwing Studio");outtextxy(330,20,str3);setfillstyle(LTSLASH_FILL,YELLOW);/*设定墙边的填充形式*/ bar3d(48,48,58,462,0,0);/*设定墙边*/bar3d(48,39,611,48,0,0);bar3d(48,452,611,462,0,0);bar3d(602,39,611,462,0,0);}void gameplay(void){/*构建游戏主函数*//*初始化游戏角色*/randomize();/*随机数发生器*/goods.yes=1;block.yes=1;food.yes=1;/*场景中需建立新的食物*/snake.life=1;/*初始化蛇生命值*/snake.direction=1;/*蛇起始的移动方向定义为向右*/snake.x[0]=100;snake.y[0]=100;/*蛇头的位置坐标初始化*/ snake.x[1]=110;snake.y[1]=100;snake.node=2;/*蛇初始化节数，共两节只有蛇头*//*初始化障碍物的数组*/block.x[0]=170;block.y[0]=270;/*level 1*/block.x[1]=410;block.y[1]=310;block.x[2]=300;block.y[2]=200;block.x[3]=320;block.y[3]=420;block.x[4]=250;block.y[4]=350;block.x[5]=220;block.y[5]=320;/*level 2*/block.x[6]=310;block.y[6]=410;block.x[7]=400;block.y[7]=500;block.x[8]=230;block.y[8]=230;block.x[9]=280;block.y[9]=280;block.x[10]=170;block.y[10]=280;/*level 3*/block.x[11]=420;block.y[11]=310;block.x[12]=310;block.y[12]=200;block.x[13]=320;block.y[13]=400;block.x[14]=250;block.y[14]=260;/*level 4*/block.x[15]=220;block.y[15]=330;block.x[16]=130;block.y[16]=410;block.x[17]=310;block.y[17]=510;block.x[18]=230;block.y[18]=340;block.x[19]=280;block.y[19]=380;block.x[20]=270;block.y[20]=170;/*level 5*/block.x[21]=410;block.y[21]=450;block.x[22]=190;block.y[22]=200;block.x[23]=150;block.y[23]=320;block.x[24]=270;block.y[24]=350;block.x[25]=340;block.y[25]=320;game.score=0;game.speed=50000;game.level=1;prscore();/*得分初始化*/while(1){/*判断为真可以按Esc退出循环结束游戏*/while(!kbhit()){/*无按键按下时，蛇自己移动身体*/if(game.level==1){/*画出障碍物*/for(j=0;j<5;j++){setcolor(5);/**/rectangle(block.x[j],block.y[j],block.x[j]+10,block.y[j]-10);block.yes=0;}}if(game.level==2){/*画出障碍物*/for(j=0;j<9;j++){setcolor(5);/**/rectangle(block.x[j],block.y[j],block.x[j]+10,block.y[j]-10); block.yes=0;}}if(game.level==3){/*画出障碍物*/for(j=0;j<14;j++){setcolor(5);/**/rectangle(block.x[j],block.y[j],block.x[j]+10,block.y[j]-10); block.yes=0;}}if(game.level==4){/*画出障碍物*/for(j=0;j<19;j++){setcolor(5);/**/rectangle(block.x[j],block.y[j],block.x[j]+10,block.y[j]-10); block.yes=0;}}if(game.level==5){/*画出障碍物*/for(j=0;j<25;j++){setcolor(5);/**/rectangle(block.x[j],block.y[j],block.x[j]+10,block.y[j]-10); block.yes=0;}}if(food.yes==1){/*需要画出新的食物*/food.x=rand()%400+60;/*获得间隔60的随机数食物坐标值*/food.y=rand()%350+60;while(food.x%10!=0)/*判断坐标值是否满足被10整除，否，自动增加*/ food.x++;while(food.y%10!=0)food.y++;food.yes=0;/*新的食物已经产生*/}if(goods.yes==1){/*需要画出新的宝物*/goods.x=rand()%380+60;/*获得间隔60的随机数宝贝坐标值*/goods.y=rand()%320+80;while(goods.x%10!=0)/*判断坐标值是否满足被10整除，否，自动增加*/ goods.x++;while(goods.y%10!=0)goods.y++;goods.yes=0;/*新的宝贝已经产生*/}if(goods.yes==0){/*新宝贝产生，应显示出来*/setcolor(0);/*擦除*/rectangle(goods.x,goods.y,goods.x+10,goods.y-10);delay(50);/*延时*/setcolor(YELLOW);goods.x=goods.x+random(10)-random(20);/*随机数增量*/goods.y=goods.y+random(10)-random(20);while(goods.x%10!=0)/*判断变化后的坐标值是否满足被10整除，否，自动增加*/goods.x++;while(goods.y%10!=0)goods.y++;rectangle(goods.x,goods.y,goods.x+10,goods.y-10);/*重画出宝贝*/if(goods.x<65||goods.x>585||goods.y<65|goods.y>445){/*判定宝贝是否越界*/setcolor(0);/*擦除越界的宝贝*/rectangle(goods.x,goods.y,goods.x+10,goods.y-10);goods.yes=1;/*越界后重新生成宝贝*/}}if(food.yes==0){/*新食物产生，应显示出来*/setcolor(GREEN);setlinestyle(SOLID_LINE,0,THICK_WIDTH);/*设定当前线型*/rectangle(food.x,food.y,food.x+10,food.y-10);}for(i=snake.node-1;i>0;i--){/*取得需重画的蛇的节数*/snake.x[i]=snake.x[i-1];/*最后一节的坐标值等于倒数第二节的坐标值*/ snake.y[i]=snake.y[i-1];}switch(snake.direction){/*判断蛇头的移动方向*/case 1:snake.x[0]+=10;break;/*向右*/case 2:snake.x[0]-=10;break;/*向左*/case 3:snake.y[0]-=10;break;/*向上*/case 4:snake.y[0]+=10;break;/*向下*/}for(i=3;i<snake.node;i++){/*超过4节后，判断蛇自身碰撞*/if(snake.x[i]==snake.x[0]&&snake.y[i]==snake.y[0]){/*即自身的任一节坐标值与蛇头坐标相等*/for(i=1;i<snake.node-1;i++){/*擦除自己碰撞后位置蛇的身子*/setcolor(0);rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10); rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);}snake.life-=1;/*生命值减少一*/snake.node-=5;prscore();/*输出结果*/if(snake.life==0){/*判断生命值是否为0*/gameover();/*游戏结束*/break;/*退出内循环*/}}}if(snake.x[0]<55||snake.x[0]>595||snake.y[0]<55||snake.y[0]>455){/*判断蛇是否与墙体碰撞*/for(i=1;i<snake.node-1;i++){/*擦除撞墙后位置蛇的身子*/setcolor(0);rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10); rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);}snake.x[0]=100;snake.y[0]=100;/*蛇头的位置坐标重新初始化*/snake.x[1]=110;snake.y[1]=100;snake.direction=1;/*蛇起始的移动方向定义为向右*/snake.life-=1;/*生命值减少一*/snake.node-=5;/*相应节数减少5节*/prscore();if(snake.life==0){gameover();break;}}/*判断蛇与障碍物碰撞，食物是否与障碍物重叠*/if(game.level==1){/*判断级别，并设定相应的障碍物数量，即数组个数*/ k=5;}else if(game.level==2){k=9;}else if(game.level==3){k=14;}else if(game.level==4){k=19;}else if(game.level==5){k=25;}for(j=0;j<k;j++){if(snake.x[0]==block.x[j]&&snake.y[0]==block.y[j]){for(i=1;i<snake.node-1;i++){/*擦除撞墙后位置蛇的身子*/setcolor(0);rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10); rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);}if(food.x==block.x[j]&&block.y[j]==food.y){/*防止障碍物与食物重叠*/ setcolor(0);/*设定食物的颜色为背景色，即擦除*/rectangle(food.x,food.y,food.x+10,food.y-10);food.yes=1;/*食物重新生成*/}snake.x[0]=100;snake.y[0]=100;/*蛇头的位置坐标重新初始化*/snake.x[1]=110;snake.y[1]=100;snake.direction=1;/*蛇起始的移动方向定义为向右*/snake.life-=1;snake.node-=5;prscore();if(snake.life==0){gameover();break;}}}if(snake.x[0]==food.x&&snake.y[0]==food.y){/*判断蛇是否吃到食物*/setcolor(0);/*设定食物的颜色为背景色，即擦除*/rectangle(food.x,food.y,food.x+10,food.y-10);snake.x[snake.node]=-20;/*新的一节放在不可见的位置*/snake.y[snake.node]=-20;snake.node++;/*蛇身增加一节*/if(snake.node>2){/*当节数每增加5节生命值增加一*/snake.life=1+fabs((snake.node-2)/5);}food.yes=1;/*场景需要增加食物*/game.score+=20;/*加分*/prscore();/*输出得分*/}if(snake.x[0]==goods.x&&snake.y[0]==goods.y){/*判定蛇是否得到宝贝*/ setcolor(0);/*设定宝贝的颜色为背景色，即擦除*/rectangle(goods.x,goods.y,goods.x+10,goods.y-10);goods.yes=1;/*场景需要增加新的宝贝*/game.score+=100;/*得到宝贝后加100分*/prscore();/*输出得分*/}if(game.score<500){/*设定游戏速度和难度级别*/game.speed=50000;game.level=1;}else if(game.score>=500&&game.score<1000){game.level=2;game.speed=40000;}else if(game.score>=1000&&game.score<1500){game.level=3;game.speed=30000;}else if(game.score>=1500&&game.score<2000){game.level=4;game.speed=20000; }else if(game.score>=5000){game.level=5;game.speed=10000;}setcolor(4);/*画出移动的蛇*/setlinestyle(SOLID_LINE,0,THICK_WIDTH);/*设定当前线型*/for(i=0;i<snake.node;i++)rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10);delay(game.speed);setcolor(0);/*用背景色擦去最后一节*/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==0)/*判断循环结束条件：蛇死或者检测到Esc按键*/ break;key=bioskey(0);/*判断按键*/if(key==Esc)break;/*判断蛇头接收到的用户按键响应的移动方向*/else if(key==UP&&snake.direction!=4)snake.direction=3;else if(key==RIGHT&&snake.direction!=2)snake.direction=1;else if(key==LEFT&&snake.direction!=1)snake.direction=2;else if(key==DOWN&&snake.direction!=3)snake.direction=4;}/*endwhile(1)*/}void gameover(void){/*游戏结束处理*/cleardevice();/*清屏*/prscore();/*输出得分*/setcolor(RED);/*打印出“Game Over”字样*/settextstyle(0,0,4);outtextxy(200,200,"Game Over!");getch();}void prscore(void){/*定义分数输出函数*/char str1[10];char str2[10];char str4[20];setfillstyle(SOLID_FILL,BLUE);/*用于清除旧的显示信息*/ bar(49,10,320,37);setcolor(WHITE);settextstyle(0,0,1);sprintf(str1,"score:%d",game.score);/*输出得分*/ outtextxy(55,20,str1);sprintf(str2,"level:%d",game.level);/*输出级别*/ outtextxy(250,20,str2);sprintf(str4,"life:%d",snake.life);/*输出级别*/ outtextxy(150,20,str4);}void close(void){/*定义关闭函数，退出图形模式*/getch();closegraph();}。