C++利用EasyX編寫貪吃蛇游戲的示例代碼

更新時間：2023年08月11日 10:13:29 作者：逃逸的卡路里

EasyX, 全名EasyX Graphics Library, 是針對 Visual C++ 的免費繪圖庫，本文將為大家介紹如何使用EasyX編寫貪吃蛇游戲，需要的小伙伴可以參考下

介紹

graphics.h是針對DOS下的一個C語言圖形庫 (c++也可以)

目前支持下載此頭文件的常用的有兩種:

1. EGE (Easy Graphics Engine)

2. EasyX Graphics Library

EGE, 全名Easy Graphics Engine, 是windows下的簡易繪圖庫，是一個類似BGI(graphics.h)的面向C/C++語言新手的圖形庫

EasyX, 全名EasyX Graphics Library, 是針對 Visual C++ 的免費繪圖庫，支持 VC6.0 ~ VC2022，簡單易用，學(xué)習(xí)成本極低，應(yīng)用領(lǐng)域廣泛。目前已有許多大學(xué)將 EasyX 應(yīng)用在教學(xué)當(dāng)中

我建議Visual Studio用EasyX, Dev-C++可以用EGE

解決的方法：去 EasyX官網(wǎng) 下載EasyX的exe程序，點擊后直接對自己使用的VC版本進(jìn)行安裝就行了，很簡單。.

Graphics.h常用用法:

1.initgraph(width, height)和closegraph()

initgraph可以創(chuàng)建一個寬度為width, 高度為height的圖形界面窗口

運行結(jié)束后可以通過closegraph來關(guān)閉窗口

注, closegraph之前記得用getch()函數(shù)來接收用戶輸入, 防止程序剛繪畫玩就關(guān)閉窗口了

2.line(x1,y1,x2,y2)

從x1,y1坐標(biāo)畫一條直線到x2,y2坐標(biāo)

3.setcolor和RGB

setcolor()可以把line畫出來的直線變成另外一種顏色

RGB可以返回setcolor的自定義參數(shù)

RGB(r,g,b)可以修改不同濃度的紅, 綠, 藍(lán)

EX:

setcolor(RGB(200,0,0))可以將line畫出來的直線變成紅色

4.circle(x,y,radius)

在x,y坐標(biāo)點畫一個半徑為radius的圓

EX:

circle(200, 200, 100);

5.setfillcolor, bar(x1,y1,x2,y2)

bar函數(shù)可以畫出一個矩形

范圍為：x坐標(biāo)從50-300，y坐標(biāo)從100-200

setfillcolor()可以改變Bar的填充顏色值,參數(shù)也是RGB()函數(shù)的自定義顏色

6.fillellipse(x,y,xr,yr);

畫一個在x, y坐標(biāo)點的實心橢圓

x軸上的半徑為xr

y軸上的半徑為yr

注:setfillcolor也可以改變其填充顏色值

7.setfontbkcolor(), setfont(12, 0, "宋體")

setfontcolor可以修改創(chuàng)建的文字的背景顏色值

setfont(12,0,"宋體")的第一個參數(shù)是字體的高度

第二個參數(shù)是字體的寬度, 如果填0, 那就會使用默認(rèn)比例值

第三個參數(shù)是設(shè)置文字的字體樣式

8.outtextxy(x, y, 字符串);

這個函數(shù)可以在坐標(biāo)x,y坐標(biāo)點輸出字符串

注:字符串也可以是中文

EX:

outtextxy(100, 150, "中文也是支持的");

小游戲運行效果圖

貪吃蛇游戲源代碼

// 貪吃蛇小游戲.cpp : 定義控制臺應(yīng)用程序的入口點。
//
#include "stdafx.h"
#include <graphics.h>
#include <Windows.h>
#include <time.h>
#include <conio.h>
#include <stdlib.h>
#include <stdio.h>
#include "io.h"
#define S_LEN	400	//蛇的最大節(jié)數(shù) 
#define S_SPEED 200	//蛇的速度
#define S_SIZE	20	//蛇的大小
//全局變量
int score = 0;
typedef enum Direction
{
	up = 72,
	down = 80,
	left = 75,
	right = 77
};					//蛇的方向
					//坐標(biāo)結(jié)構(gòu)體
struct Coordinate
{
	int x;
	int y;
};
//蛇的結(jié)構(gòu)體 
struct Snake
{
	Coordinate sCo[S_LEN];	//每一節(jié)蛇的坐標(biāo)
	int num;				//蛇的節(jié)數(shù)
	Direction direction;	//蛇的方向
}snake;
//食物的結(jié)構(gòu)體
struct Food
{
	Coordinate fCo;
	int flag;				//食物是否被吃
}food;
//函數(shù)聲明
void InitSnake();			//初始化蛇
void Snake_Food();			//食物坐標(biāo)
void Snake_Food_Paint();	//畫食物
void Snake_Paint();			//畫蛇
void Snake_Move();			//蛇移動
void Snake_Change();		//方向性移動
void Snake_Eat();			//食物是否被吃 
void Snake_Break();			//判斷是否撞自己
void Game_Over();			//結(jié)束游戲
int main(int argc, char *argv[])
{
	InitSnake();
	while (true)
	{
		while (!_kbhit())
		{
			settextcolor(RED);
			score = (snake.num - 2) * 100;
			char s[5];
			sprintf(s, "%d", score);
			outtextxy(500, 60, s);
			if (food.flag == 0)
			{
				Snake_Food();
			}
			Snake_Food_Paint();
			Snake_Break();
			Snake_Eat();
			Snake_Move();
			Sleep(S_SPEED);
		}
		Snake_Change();
	}
	return 0;
}
//初始化蛇
void InitSnake()
{
	//初始化圖形界面
	initgraph(640, 480);
	setbkcolor(RGB(168, 168, 168));
	cleardevice();
	settextcolor(RED);
	settextstyle(32, 0, "黑體");
	outtextxy(510, 20, "貪吃蛇");
	settextcolor(BLACK);
	settextstyle(16, 0, "宋體");
	outtextxy(495, 100, "分?jǐn)?shù)：");
	outtextxy(500, 400, "By:逃逸的卡路里");
	setcolor(RGB(46, 85, 6));
	setfillcolor(RGB(46, 85, 6));
	fillrectangle(0, 0, 480, 480);
	setcolor(RGB(199, 177, 163));
	setfillcolor(RGB(199, 177, 163));
	fillrectangle(40, 40, 440, 440);
	setcolor(RGB(102, 86, 0));
	for (int i = 0; i < 5; i++)
	{
		rectangle(39 - i, 39 - i, 441 + i, 441 + i);
	}
	setcolor(RGB(168, 147, 130));
	for (int i = 60; i < 440; i += 20)
	{
		line(i, 40, i, 440);
		line(40, i, 440, i);
	}
	setorigin(40, 40);
	setcolor(RGB(56, 89, 0));
	setfillcolor(RGB(91, 193, 45));
	fillcircle(10, 10, 9);		//第一節(jié)蛇
	setfillcolor(WHITE);
	fillcircle(8, 5, 2);
	fillcircle(8, 15, 2);
	food.flag = 0;			//食物被吃
							//蛇坐標(biāo)初始化
	snake.sCo[0].x = 0 + S_SIZE;
	snake.sCo[0].y = 0;
	snake.sCo[1].x = 0;
	snake.sCo[0].y = 0;
	snake.num = 2;
	snake.direction = right;
}
//食物坐標(biāo)			
void Snake_Food()
{
	int i;
	srand((unsigned)time(NULL));
	while (true)
	{
		int num = 0;
		food.fCo.x = rand() % (400 / S_SIZE)*S_SIZE;
		food.fCo.y = rand() % (400 / S_SIZE)*S_SIZE;
		for (i = 0; i < snake.num; i++)
		{
			if (snake.sCo[i].x == food.fCo.x&&snake.sCo[i].y == food.fCo.y)
			{
				num++;
			}
		}
		if (num == 0)
		{
			break;
		}
	}
	food.flag = 1;
}
//畫食物
void Snake_Food_Paint()
{
	setcolor(RED);
	setfillcolor(RED);
	fillcircle(food.fCo.x + 10, food.fCo.y + 10, 8);
}
//畫蛇
void Snake_Paint()
{
	for (int i = snake.num - 1; i >= 0; i--)
	{
		setcolor(RGB(56, 89, 0));
		setfillcolor(RGB(91, 193, 45));
		fillcircle(snake.sCo[i].x + 10, snake.sCo[i].y + 10, 9);
		if (i == 0)
		{
			setfillcolor(WHITE);
			switch (snake.direction)
			{
			case up:
				fillcircle(snake.sCo[i].x + 5, snake.sCo[i].y + 12, 2);
				fillcircle(snake.sCo[i].x + 15, snake.sCo[i].y + 12, 2);
				break;
			case down:
				fillcircle(snake.sCo[i].x + 5, snake.sCo[i].y + 8, 2);
				fillcircle(snake.sCo[i].x + 15, snake.sCo[i].y + 8, 2);
				break;
			case left:
				fillcircle(snake.sCo[i].x + 12, snake.sCo[i].y + 5, 2);
				fillcircle(snake.sCo[i].x + 12, snake.sCo[i].y + 15, 2);
				break;
			case right:
				fillcircle(snake.sCo[i].x + 8, snake.sCo[i].y + 5, 2);
				fillcircle(snake.sCo[i].x + 8, snake.sCo[i].y + 15, 2);
				break;
			}
		}
	}
	setcolor(RGB(199, 177, 163));
	setfillcolor(RGB(199, 177, 163));
	fillcircle(snake.sCo[snake.num].x + 10, snake.sCo[snake.num].y + 10, 9);
}
//蛇移動
void Snake_Move()
{
	for (int i = snake.num; i > 0; i--)
	{
		snake.sCo[i].x = snake.sCo[i - 1].x;
		snake.sCo[i].y = snake.sCo[i - 1].y;
	}
	switch (snake.direction)
	{
	case up:
		if (snake.sCo[0].y == 0)
		{
			snake.sCo[0].y = 400 - S_SIZE;
		}
		else
		{
			snake.sCo[0].y -= S_SIZE;
		}
		break;
	case down:
		if (snake.sCo[0].y == 400 - S_SIZE)
		{
			snake.sCo[0].y = 0;
		}
		else
		{
			snake.sCo[0].y += S_SIZE;
		}
		break;
	case left:
		if (snake.sCo[0].x == 0)
		{
			snake.sCo[0].x = 400 - S_SIZE;
		}
		else
		{
			snake.sCo[0].x -= S_SIZE;
		}
		break;
	case right:
		if (snake.sCo[0].x == 400 - S_SIZE)
		{
			snake.sCo[0].x = 0;
		}
		else
		{
			snake.sCo[0].x += S_SIZE;
		}
		break;
	}
	Snake_Paint();
}
//方向性移動
void Snake_Change()
{
	int ch;
	ch = getch();
	switch (ch)
	{
	case 'w':
	case 'W':
	case up:
		if (snake.direction != down)
		{
			snake.direction = up;
		}
		break;
	case 's':
	case 'S':
	case down:
		if (snake.direction != up)
		{
			snake.direction = down;
		}
		break;
	case 'a':
	case 'A':
	case left:
		if (snake.direction != right)
		{
			snake.direction = left;
		}
		break;
	case 'd':
	case 'D':
	case right:
		if (snake.direction != left)
		{
			snake.direction = right;
		}
		break;
	}
}
//食物是否被吃
void Snake_Eat()
{
	if (snake.sCo[0].x == food.fCo.x&&snake.sCo[0].y == food.fCo.y)
	{
		snake.num++;
		food.flag = 0;
	}
}
//判斷是否撞自己
void Snake_Break()
{
	for (int i = snake.num - 1; i > 3; i--)
	{
		if (snake.sCo[0].x == snake.sCo[i].x&&snake.sCo[0].y == snake.sCo[i].y)
		{
			Game_Over();
		}
	}
}
//結(jié)束游戲
void Game_Over()
{
	cleardevice();
	setcolor(WHITE);
	outtextxy(200, 160, "GAME OVER!!!");
	Sleep(10000);
	closegraph();
}

以上就是C++利用EasyX編寫貪吃蛇游戲的示例代碼的詳細(xì)內(nèi)容，更多關(guān)于C++ EasyX貪吃蛇的資料請關(guān)注腳本之家其它相關(guān)文章！

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