直接上代码

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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <conio.h>
#include <time.h>
#include <windows.h>//MAXWIDTH、MAXHEIGHT、INITLEN 以字符记
#define MAXWIDTH (30)
#define MAXHEIGHT MAXWIDTH
#define INITLEN (3)  //贪吃蛇的初始长度 //程序中用到的各种字符，以及它们的颜色和类型（以数字表示）
struct{char *ch;int color;char type;
}
charBorder = {"□", 4, 1},  //边框
charBg = {"■", 2, 2},  //背景
charSnake = {"★", 0xe, 3},  //贪吃蛇节点
charFood = {"●", 0xc, 4};  //食物//用一个结构体数组保存地图中的各个点
struct{char type;int index;
}globalMap[MAXWIDTH][MAXHEIGHT];//贪吃蛇有效活动范围地图的索引
struct{int x;int y;
} snakeMap[ (MAXWIDTH-2)*(MAXHEIGHT-2) ], scoresPostion;int scores = 0;  //得分
int snakeMapLen = (MAXWIDTH-2)*(MAXHEIGHT-2);
int headerIndex, tailIndex;  //蛇头蛇尾对应的snakeMap中的索引（下标）
HANDLE hStdin;  //控制台句柄// 设置光标位置，x为行，y为列
void setPosition(int x, int y){COORD coord;coord.X = 2*y;coord.Y = x;SetConsoleCursorPosition(hStdin, coord);
}// 设置颜色
void setColor(int color){SetConsoleTextAttribute(hStdin, color);
}//创建食物
void createFood(){int index, rang, x, y;//产生随机数，确定 snakeMap 数组的索引 srand((unsigned)time(NULL));if(tailIndex<headerIndex){rang = headerIndex-tailIndex-1;index = rand()%rang + tailIndex + 1;}else{rang = snakeMapLen - (tailIndex - headerIndex+1);index = rand()%rang;if(index>=headerIndex){index += (tailIndex-headerIndex+1);}}x = snakeMap[index].x;y = snakeMap[index].y;setPosition(x, y);setColor(charFood.color);printf("%s", charFood.ch);globalMap[x][y].type=charFood.type;
}//死掉
void die(){int xCenter = MAXHEIGHT%2==0 ? MAXHEIGHT/2 : MAXHEIGHT/2+1;int yCenter = MAXWIDTH%2==0 ? MAXWIDTH/2 : MAXWIDTH/2+1;setPosition(xCenter, yCenter-5);setColor(0xC);printf("You die! Game Over!");getch();exit(0);
}// 蛇移动
void move(char direction){int newHeaderX, newHeaderY;  //新蛇头的坐标int newHeaderPreIndex;  //新蛇头坐标以前对应的索引int newHeaderPreX, newHeaderPreY;  //新蛇头的索引以前对应的坐标int newHeaderPreType;  //新蛇头以前的类型int oldTailX, oldTailY;  //老蛇尾坐标// -----------------------------------------------//新蛇头的坐标switch(direction){case 'w':newHeaderX = snakeMap[headerIndex].x-1;newHeaderY = snakeMap[headerIndex].y;break;case 's':newHeaderX = snakeMap[headerIndex].x+1;newHeaderY = snakeMap[headerIndex].y;break;case 'a':newHeaderX = snakeMap[headerIndex].x;newHeaderY = snakeMap[headerIndex].y-1;break;case 'd':newHeaderX = snakeMap[headerIndex].x;newHeaderY = snakeMap[headerIndex].y+1;break;}//新蛇头的索引headerIndex = headerIndex==0 ? snakeMapLen-1 : headerIndex-1;// -----------------------------------------------//新蛇头坐标以前对应的索引newHeaderPreIndex = globalMap[newHeaderX][newHeaderY].index;//新蛇头的索引以前对应的坐标newHeaderPreX = snakeMap[headerIndex].x;newHeaderPreY = snakeMap[headerIndex].y;//双向绑定新蛇头索引与坐标的对应关系snakeMap[headerIndex].x = newHeaderX;snakeMap[headerIndex].y = newHeaderY;globalMap[newHeaderX][newHeaderY].index = headerIndex;//双向绑定以前的索引与坐标的对应关系snakeMap[newHeaderPreIndex].x = newHeaderPreX;snakeMap[newHeaderPreIndex].y = newHeaderPreY;globalMap[newHeaderPreX][newHeaderPreY].index = newHeaderPreIndex;//新蛇头以前的类型newHeaderPreType = globalMap[newHeaderX][newHeaderY].type;//设置新蛇头类型globalMap[newHeaderX][newHeaderY].type = charSnake.type;// 判断是否出界或撞到自己if(newHeaderPreType==charBorder.type || newHeaderPreType==charSnake.type ){die();}//输出新蛇头setPosition(newHeaderX, newHeaderY);setColor(charSnake.color);printf("%s", charSnake.ch);//判断是否吃到食物if(newHeaderPreType==charFood.type){  //吃到食物createFood();//更改分数setPosition(scoresPostion.x, scoresPostion.y);printf("%d", ++scores);}else{//老蛇尾坐标oldTailX = snakeMap[tailIndex].x;oldTailY = snakeMap[tailIndex].y;//删除蛇尾setPosition(oldTailX, oldTailY);setColor(charBg.color);printf("%s", charBg.ch);globalMap[oldTailX][oldTailY].type = charBg.type;tailIndex = (tailIndex==0) ? snakeMapLen-1 : tailIndex-1;}
}//下次移动的方向
char nextDirection(char ch, char directionOld){int sum = ch+directionOld;ch = tolower(ch);if( (ch=='w' || ch=='a' || ch=='s' || ch=='d') && sum!=197 && sum!=234 ){return ch;}else{return directionOld;}
}//暂停
char pause(){return getch();
}// 初始化
void init(){// 设置相关变量 int x, y, i, index;int xCenter = MAXHEIGHT%2==0 ? MAXHEIGHT/2 : MAXHEIGHT/2+1;int yCenter = MAXWIDTH%2==0 ? MAXWIDTH/2 : MAXWIDTH/2+1;CONSOLE_CURSOR_INFO cci;  //控制台光标信息//判断相关设置是否合理if(MAXWIDTH<16){printf("'MAXWIDTH' is too small!");getch();exit(0);}//设置窗口大小 system("mode con: cols=96 lines=32");//隐藏光标hStdin = GetStdHandle(STD_OUTPUT_HANDLE);GetConsoleCursorInfo(hStdin, &cci);cci.bVisible = 0;SetConsoleCursorInfo(hStdin, &cci);//打印背景 for(x=0; x<MAXHEIGHT; x++){for(y=0; y<MAXWIDTH; y++){if(y==0 || y==MAXWIDTH-1 || x==0 || x==MAXHEIGHT-1){globalMap[x][y].type = charBorder.type;setColor(charBorder.color);printf("%s", charBorder.ch);}else{index = (x-1)*(MAXWIDTH-2)+(y-1);snakeMap[index].x= x;snakeMap[index].y= y;globalMap[x][y].type = charBg.type;globalMap[x][y].index = index;setColor(charBg.color);printf("%s", charBg.ch);}}printf("\n");}//初始化贪吃蛇globalMap[xCenter][yCenter-1].type = globalMap[xCenter][yCenter].type = globalMap[xCenter][yCenter+1].type = charSnake.type;headerIndex = (xCenter-1)*(MAXWIDTH-2)+(yCenter-1) - 1;tailIndex = headerIndex+2;setPosition(xCenter, yCenter-1);setColor(charSnake.color);for(y = yCenter-1; y<=yCenter+1; y++){printf("%s", charSnake.ch);}//生成食物createFood();//设置程序信息setPosition(xCenter-1, MAXWIDTH+2);printf("   Apples : 0");setPosition(xCenter, MAXWIDTH+2);printf("   Author : xiao p");setPosition(xCenter+1, MAXWIDTH+2);printf("Copyright : c.biancheng.net");scoresPostion.x = xCenter-1;scoresPostion.y = MAXWIDTH+8;
}int main(){char charInput, direction = 'a';init();charInput = tolower(getch());direction = nextDirection(charInput, direction);while(1){if(kbhit()){charInput = tolower(getch());if(charInput == ' '){charInput = pause();}direction = nextDirection(charInput, direction);}move(direction);Sleep(500);}getch();return 0;
}​

【操作过程】

编译运行后，先按enter键使游戏开始，然后w,s a d 分别控制上下左右移动

【运行展示】