[C/C++游戏编码教程]：飞机大战，雷霆战机游戏.

1.效果图

2.直接上代码

#include
#include//要安装的，图形库头文件easyx
#include//win32 多媒体设备接口
#pragma comment(lib,"winmm.lib")
#define WIN_WIDTH 591
#define WIN_HEIGHT 864
#define BULLET_NUM 15//最大子弹数量
#define ENEMY_NUM 10

struct Image
{
	IMAGE bakcGround;//背景图片
	IMAGE player[2];
	IMAGE bullet[2];
	IMAGE enemy[4];
}image;
//结构体三兄弟，结构体，枚举，联合
enum TYPE
{
	SAMLL,
	BIG,
};
struct Plane //我，敌机，子弹
{
	int x;
	int y;
	bool flag;//是否存活  true flase
	union
	{
		int type;//敌机独有属性
		int score;//玩家独有属性
	}un;
	int hp;//血量
}player, bullet[BULLET_NUM], enemy[ENEMY_NUM];
DWORD t1, t2,t3,t4;
//分模块处理，专门的事情，专门的函数做
void EnemyHP(int i)
{
	if (rand() % 10 == 0) //十分之一的概率产生一个大飞机
	{
		enemy[i].un.type = BIG;
		enemy[i].hp = 3;
	}
	else
	{
		enemy[i].un.type = SAMLL;
		enemy[i].hp = 1;
	}
}
//加载图片
void GameInit()
{
	//设置随机数种子
	srand(GetTickCount());
	t1 = t2=t3=t4 = GetTickCount();//获取系统开机到当前所经过的毫秒数
	//播放音乐
	mciSendString("open ./images/game_music.mp3 alias BGM",0,0,0);//向多媒体设备接口发送字符串 media device interface 
	mciSendString("play BGM repeat", 0, 0, 0);
	//加载背景图片
	loadimage(&image.bakcGround, "./images/background.jpg");//把图片加载并保存
	loadimage(&image.player[0], "./images/planeNormal_1.jpg");
	loadimage(&image.player[1], "./images/planeNormal_2.jpg");
	loadimage(&image.bullet[0], "./images/bullet1.jpg");
	loadimage(&image.bullet[1], "./images/bullet2.jpg");
	loadimage(&image.enemy[0], "./images/enemy_1.jpg");
	loadimage(&image.enemy[1], "./images/enemy_2.jpg");
	loadimage(&image.enemy[2], "./images/enemyPlane1.jpg");
	loadimage(&image.enemy[3], "./images/enemyPlane2.jpg");
	//初始化玩家数据
	player.x = WIN_WIDTH/2;
	player.y = WIN_HEIGHT - 120;
	player.flag = true;
	player.hp = 999;
	player.un.score = 0;
	//初始化子弹数据
	for (int i = 0; i < BULLET_NUM; i++)
	{
		bullet[i].flag = false;
	}
	//初始化敌机
	for (int i = 0; i < ENEMY_NUM; i++)
	{
		enemy[i].flag = false;
		EnemyHP(i);
	}
}
void Gamedraw()
{
	//绘制背景
	putimage(0, 0, &image.bakcGround);
	//绘制玩家
	putimage(player.x, player.y, &image.player[0], NOTSRCERASE);
	putimage(player.x, player.y, &image.player[1], SRCINVERT);
	//绘制子弹
	for (int i = 0; i < BULLET_NUM; i++)
	{
		if (bullet[i].flag == true)
		{
			putimage(bullet[i].x, bullet[i].y, &image.bullet[0], NOTSRCERASE);
			putimage(bullet[i].x, bullet[i].y, &image.bullet[1], SRCINVERT);
		}
	}
	for (int i = 0; i < ENEMY_NUM; i++)
	{
		if (enemy[i].flag)
		{
			if (enemy[i].un.type == TYPE::SAMLL)
			{
				putimage(enemy[i].x, enemy[i].y, &image.enemy[0], NOTSRCERASE);
				putimage(enemy[i].x, enemy[i].y, &image.enemy[1], SRCINVERT);
			}
			else if (enemy[i].un.type == TYPE::BIG)
			{

				putimage(enemy[i].x, enemy[i].y, &image.enemy[2], NOTSRCERASE);
				putimage(enemy[i].x, enemy[i].y, &image.enemy[3], SRCINVERT);
			}
		}
	}
}
void CreateBullet()
{
	for (int i = 0; i < BULLET_NUM; i++)
	{
		if (bullet[i].flag == false)
		{
			bullet[i].flag = true;
			bullet[i].x = player.x+45;
			bullet[i].y = player.y;
			break;
		}
	}
}
void BulletMove(int speed)
{
	for (int i = 0; i < BULLET_NUM; i++)
	{
		if (bullet[i].flag == true)
		{
			bullet[i].y -= speed;
			if (bullet[i].y <= 0)
			{
				bullet[i].flag = false;
			}
		}
	}
}
//产生敌机
void CreateEnemy()
{
	for (int i = 0; i < ENEMY_NUM; i++)
	{
		if (enemy[i].flag == 0)
		{
			enemy[i].flag = true;
			enemy[i].x = rand() % (WIN_WIDTH - 100);
			enemy[i].y = 0;
			EnemyHP(i);
			break;
		}
	}
}
void EnemyMove(int speed)
{
	for (int i = 0; i < ENEMY_NUM; i++)
	{
		if (enemy[i].flag)
		{
			enemy[i].y +=speed;
			if (enemy[i].y>=WIN_HEIGHT)
			{
				enemy[i].flag = false;
			}
		}
	}
}
void GameControl(int speed)
{
	//_getch();GetAnsyncKeyState();
	if (GetAsyncKeyState(VK_UP) && player.y>=0)
	{
		player.y-=speed;
	}
	if (GetAsyncKeyState(VK_DOWN) && player.y+120<=WIN_HEIGHT)
	{
		player.y += speed;
	}
	if (GetAsyncKeyState(VK_LEFT) && player.x+50>=0)
	{
		player.x -= speed;
	}
	if (GetAsyncKeyState(VK_RIGHT)&& player.x+55<=WIN_WIDTH)
	{
		player.x += speed;
	}
	//发射子弹
	if (GetAsyncKeyState(VK_SPACE) && t2-t1>200)
	{
		CreateBullet();
		mciSendString("close gun", 0, 0, 0);
		mciSendString("open ./images/f_gun.mp3 alias gun", 0, 0, 0);
		mciSendString("play gun", 0, 0, 0);
		t1 = t2;
	}
	t2 = GetTickCount();
	if (t4 - t3 > rand() % 500 + 500)
	{
		CreateEnemy();
		t3 = t4;
	}
	t4 = GetTickCount();
	EnemyMove(1);
	BulletMove(1);
}
void PlayEnemy()
{
	//1，遍历敌机数组  判断是否存活
	//2，遍历子弹数组
	//3，判断子弹是否击中敌机
	//4,达到了，属性改变，血量--，存活状态，玩家分数++，
	//5，如果血量为0，敌机死亡
}
int main()
{
	initgraph(WIN_WIDTH, WIN_HEIGHT);//创建一个图形窗口
	GameInit();
	BeginBatchDraw();//开启双款冲绘图，现在内存里面画好，在现实给你看
	while (1)
	{
		Gamedraw();
		FlushBatchDraw();//我想看了
		GameControl(1);
	}
	EndBatchDraw();//结束
	return 0;
}

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