贪吃蛇代码实现

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我是靠谱客的博主微笑故事，最近开发中收集的这篇文章主要介绍贪吃蛇代码实现，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

一、代码实现

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<stdlib.h>
using namespace std;
#define SNAKE_NUM 100
#define HEIGHT 480
#define WIDTH 640
//枚举
enum dir
{
UP,
DOWN,
LEFT,
RIGHT
};
//蛇
int score;
struct Snake {
int size;//
int dir;
int speed;
POINT coor[SNAKE_NUM];
}snake;
//食物
struct Food {
int x;
int y;
bool flag;
int size;
DWORD color;
}food;
void GameInit()
{
//init 初始化 graph图形窗口
initgraph(WIDTH, HEIGHT);
//初始化蛇 一开始有三节
//随机数种子 GetTickCount()获取系统开机到现在经过的毫秒数
srand(GetTickCount());
snake.size = 3;
snake.speed = 10;
snake.dir = RIGHT;
for (int i =0; i <snake.size; i++) {
snake.coor[i].x = snake.size*10-(i)*10;
snake.coor[i].y = 10;
printf("%d %d", snake.coor[i].x, snake.coor[i].y);
}
//随机生成食物
food.x = rand() % WIDTH + 1;
food.y = rand() % HEIGHT + 1;
food.size = snake.speed / 2;
food.color = RGB(rand() % 256, rand() % 256, rand() % 256);
food.flag = true;
}
void GameDraw() {
setbkcolor(WHITE);
cleardevice();
setfillcolor(BLACK);
//双缓冲绘图
BeginBatchDraw();
for (int i = 0; i < snake.size; i++) {
solidcircle(snake.coor[i].x, snake.coor[i].y, snake.speed/2);
}
if (food.flag) {
solidcircle(food.x, food.y, food.size);
}
EndBatchDraw();
}
void snakeMove() {
for (int i = snake.size - 1; i > 0; i--) {
snake.coor[i] = snake.coor[i - 1];
}
switch (snake.dir) {
case UP:
if (snake.coor[0].y - (snake.speed) / 2 <= 0) {
snake.coor[0].y = HEIGHT;
}
snake.coor[0].y-=snake.speed;
break;
case DOWN:
if (snake.coor[0].y + (snake.speed) / 2 >=640) {
snake.coor[0].y = 0;
}
snake.coor[0].y += snake.speed;
break;
case LEFT:
if (snake.coor[0].x - (snake.speed) / 2 <= 0) {
snake.coor[0].x = WIDTH;
}
snake.coor[0].x-=snake.speed;
break;
case RIGHT:
if (snake.coor[0].x + (snake.speed) / 2 >= 480) {
snake.coor[0].x = 0;
}
snake.coor[0].x+=snake.speed;
break;
}
}
void keyControl() {
//72 80 75 77
上下左右
//kbhit
if (_kbhit()) {
switch (_getch()) {
case 'w':
case 72:
if (snake.dir != DOWN) {
snake.dir = UP;
}
break;
case 's':
case 80:
if (snake.dir != UP) {
snake.dir = DOWN;
}
break;
case'a':
case 75:
if (snake.dir != RIGHT) {
snake.dir = LEFT;
}
break;
case'd':
case 77:
if (snake.dir != LEFT) {
snake.dir = RIGHT;
}
break;
case ' '://当按下空格时游戏暂停
if (_getch() == ' ') {
return;
}
break;
}
}
}
void eatFood() {
if (food.x - snake.coor[0].x <= food.size && snake.coor[0].x - food.x <= food.size && food.y - snake.coor[0].y <= food.size && snake.coor[0].y - food.y <= food.size) {
food.flag = false;
snake.size++;
score++;
}
if (!food.flag) {
food.x = rand() % WIDTH + 1;
food.y = rand() % HEIGHT + 1;
food.size = snake.speed / 2;
food.color = RGB(rand() % 256, rand() % 256, rand() % 256);
food.flag = true;
}
}
int main() {
GameInit();
while (1) {
GameDraw();
snakeMove();
keyControl();
eatFood();
Sleep(200);
}
return 0;
}

二、easyx说明

eayx是针对c++的图形库，s可以帮助初学者上手游戏和图形化编程

下载easyx库

easyx绘制图形坐标轴的原点位于界面的左上角，x轴向右为正，y轴向下为正，单位是像素点

Initgraph函数

参数

width：绘图窗口的宽度。

height：绘图窗口的高度。

flag：绘图窗口的样式，默认为 NULL。可为以下值：

值含义

EW_DBLCLKS 在绘图窗口中支持鼠标双击事件。

EW_NOCLOSE 禁用绘图窗口的关闭按钮。

EW_NOMINIMIZE 禁用绘图窗口的最小化按钮。

EW_SHOWCONSOLE 显示控制台窗口。

ps:也可以不写前面的EW_

cleardevice函数

使用当前背景色清空窗口

setbkcolor

设置背景颜色

setfillcolor

设置填充颜色

绘制圆

#include<stdio.h>
//1.包含图形库头文件，就能使用提供给我的函数
#include<graphics.h>
int main()
{
//2.创建一个窗口,确定窗口大小,show_console(显现控制台)
initgraph(640, 480, SHOWCONSOLE);
//设置背景颜色，one，two两步才能设置背景颜色，位置不能颠倒
setbkcolor(RGB(255,128,192));//one,设置背景颜色
cleardevice();//two,清屏，初始化,清楚原来背景的黑色
//3.画粑粑，圆
setfillcolor(BLUE);//填充颜色为蓝色
setlinecolor(YELLOW);//线的颜色为黄色
circle(50, 50, 50);
solidcircle(50, 250, 50);
/*
setbkcolor(GREEN);//重新设个背景色，更显著
clearcircle(100, 150, 50);
clearcircle(100, 250, 50);
*/
getchar();
//2.1关闭窗口
closegraph();
return 0;
}