大一c语言期末作业飞机大战，用了easyx图形库

编译环境是vc6   高版本vs可能在有的地方会不兼容

写的很渣，大神勿喷

飞机由鼠标移动控制，鼠标左键开火

会随机生成五种不同的敌人，这五种敌人除了外观不同以外，血量也不同

当飞机遇到 S 后会增强武器

代码如下

#include 
#include 
#include 
#include 
#include 
#include 
#define WIDTH 680
#define HIGH 800
void Startup();
void Show();
void UserInput();
void Update_no();
void EndGame();
void DrawPlane();
void DrawBullet();
void DrawEnemy();
void SuperBullet();
void Clear();
void ShowData();
struct bullet
{
	POINT pos;
	int flag;
};
struct enemy
{
	POINT pos;
	int type;
	int flag;
	int life;
};

struct super
{
	POINT pos;
    int flag;
};
struct bullet bullet[50];
struct enemy enemy[50];
struct super super;
POINT pl[3];
int plane_x,plane_y;
int plane_width=60;
int plane_high=35;
int bulletnum=0;
int bullettype=1;
int bulletdamge=1;
int enemynum=0;
int enemytimes=1000;
int enemycount=enemytimes-20;
int enemytype[5]={10,15,20,25,30};
int enemylife[5]={1,2,3,4,5};
float enemyspeed=1.0;
int bulletspeed=5;
int k=0;
int gamelevel=1;
int socre=0;
int gameflag=1;
int main()
{
	initgraph(WIDTH+200,HIGH);
	setbkcolor(DARKGRAY);
	cleardevice();
	Startup();
	BeginBatchDraw();
	while (gameflag)
	{
		Show();
		UserInput();
		Show();
		Update_no();
		Show();
		Clear();
	}
	EndGame();
	_getch();
	closegraph();
	return 0;
}
void Startup()
{
	//飞机坐标的初始化
	plane_x=WIDTH/2;
	plane_y=HIGH-100;
	//对飞机的三个顶点的坐标初始化
	pl[0].x=plane_x-plane_width/2;
	pl[0].y=plane_y;
	pl[1].x=plane_x+plane_width/2;
	pl[1].y=plane_y;
	pl[2].x=plane_x;
	pl[2].y=plane_y-plane_high;

	super.flag=0;
	super.pos.y=-1;
	for (int i=0;i<50;i++)
	{
		bullet[i].flag=0;
	}
	for (int j=0;i<50;i++)
	{
		enemy[j].flag=0;
		enemy[j].type=0;
	}
	srand(unsigned(time(NULL)));
}
void Show()
{
	DrawPlane();
	DrawEnemy();
	DrawBullet();
	SuperBullet();
	ShowData();
	FlushBatchDraw();
}

void Clear()
{
	Sleep(5);
	cleardevice();
}
void DrawPlane()
{
	setlinecolor(WHITE);
	setlinestyle(BS_SOLID,2);
	line(plane_x,plane_y-5,plane_x,plane_y-40);
	setlinestyle(BS_SOLID,5);
	line(pl[0].x+5,pl[0].y-5,pl[0].x+5,pl[0].y-20);
	line(pl[1].x-5,pl[1].y-5,pl[1].x-5,pl[1].y-20);
	setfillcolor(LIGHTRED);
	setlinestyle(BS_SOLID,4);
	setlinecolor(YELLOW);
	fillpolygon(pl,3);

}

void DrawBullet()
{
	setlinestyle(BS_SOLID,3);
	if (bullettype>=6)
	{
		setlinecolor(LIGHTRED);
		bulletdamge=3;
	}
	else if (bullettype>=4)
	{
		setlinecolor(LIGHTBLUE);
		bulletdamge=2;
	}
	else if (bullettype==9)
		bulletdamge=5;
	else
		setlinecolor(YELLOW);
	for (int i=0;i<50;i++)
	{
		int x=bullet[i].pos.x;
		int y=bullet[i].pos.y;
		if (bullet[i].flag)
			line(x,y,x,y-20);
	}
}

void DrawEnemy()
{
	
	if (enemycount==enemytimes)
	{
		enemy[enemynum].flag=1;
		enemy[enemynum].pos.y=1;
		enemy[enemynum].pos.x=rand()%(WIDTH-30)+30;
		enemy[enemynum].type=rand()%5;
		enemy[enemynum].life=enemylife[enemy[enemynum].type];
		enemynum++;
		k+=1;
		enemycount=0;
		if (k==15)
		{
			k=0;
			if (enemytimes>100)
				enemytimes-=100;
			enemyspeed+=0.5;
			gamelevel++;
	    }
	}
	for (int i=0;i<50;i++)
	{
		if (enemy[i].flag)
		{
			switch (enemy[i].type)
			{
			    case 0:setfillcolor(GREEN);break;
				case 1:setfillcolor(RED);break;
				case 2:setfillcolor(LIGHTBLUE);break;
				case 3:setfillcolor(LIGHTRED);break;
				case 4:setfillcolor(BROWN);break;

			}
			solidcircle(enemy[i].pos.x,enemy[i].pos.y,enemytype[enemy[i].type]);
			setlinestyle(BS_SOLID,4);
			setlinecolor(RED);
			line(enemy[i].pos.x-20,enemy[i].pos.y,enemy[i].pos.x+20,enemy[i].pos.y);
			line(enemy[i].pos.x,enemy[i].pos.y-20,enemy[i].pos.x,enemy[i].pos.y+20);
		}
	}
}

void SuperBullet()
{
	TCHAR superbullet[]=_T("S");
	if (k%14==0&&super.flag==0)
	{
		super.pos.x=rand()%(WIDTH-30);
		super.pos.y=0;
		super.flag=1;
	}
	if (super.flag)
	{
		setlinestyle(BS_SOLID,1);
		settextcolor(YELLOW);
		settextstyle(30, 0, _T("宋体"));
		outtextxy(super.pos.x+5,super.pos.y+5,superbullet);
	}
}
void UserInput()
{
	MOUSEMSG m;
	while (MouseHit())
	{
		m=GetMouseMsg();
		if (m.uMsg==WM_MOUSEMOVE&&m.x<=WIDTH-30)
		{
			plane_x=m.x;
			plane_y=m.y+20;
		}
		if (m.uMsg==WM_LBUTTONUP)
		{
			if (bullettype==1)
			{
				bullet[bulletnum].pos.x=plane_x;
				bullet[bulletnum].pos.y=plane_y-60;
				bullet[bulletnum].flag=1;
				bulletnum++;
			}
			else if (bullettype==2) 
			{
				bullet[bulletnum].pos.x=pl[0].x;
				bullet[bulletnum].pos.y=plane_y;
				bullet[bulletnum].flag=1;
				bulletnum++;
				if (bulletnum==50)
					bulletnum=0;
				bullet[bulletnum].pos.x=pl[1].x;
				bullet[bulletnum].pos.y=plane_y;
				bullet[bulletnum].flag=1;
				bulletnum++;
			}
			else
			{
				bullet[bulletnum].pos.x=plane_x;
				bullet[bulletnum].pos.y=plane_y-60;
				bullet[bulletnum].flag=1;
				bulletnum++;
				if (bulletnum==50)
					bulletnum=0;
				bullet[bulletnum].pos.x=pl[0].x;
				bullet[bulletnum].pos.y=plane_y;
				bullet[bulletnum].flag=1;
				bulletnum++;
				if (bulletnum==50)
					bulletnum=0;
				bullet[bulletnum].pos.x=pl[1].x;
				bullet[bulletnum].pos.y=plane_y;
				bullet[bulletnum].flag=1;
				bulletnum++;
			}
		}
	}
}
void Update_no()
{
	int n;
	//飞机的三个顶点的坐标变换
	pl[0].x=plane_x-plane_width/2;
	pl[0].y=plane_y;
	pl[1].x=plane_x+plane_width/2;
	pl[1].y=plane_y;
	pl[2].x=plane_x;
	pl[2].y=plane_y-plane_high;

	
	for (int i=0;i<50;i++)
	{
		//子弹坐标的变化
		if (bullet[i].flag)
		{
			bullet[i].pos.y-=bulletspeed;
			if (bullet[i].pos.y<=0)
				bullet[i].flag=0;
		}
		//敌人的坐标变化
		if (enemy[i].flag)
		{
			enemy[i].pos.y+=enemyspeed;
			if (enemy[i].pos.y>=HIGH)
				enemy[i].flag=0;
			//敌人碰到我
			if (abs(enemy[i].pos.x-plane_x)+abs(enemy[i].pos.y-plane_y)<=60)
				gameflag=0;;
		}
	}
	//敌人碰到子弹
	for (int j=0;j<50;j++)
	{
		if (bullet[j].flag)
		{
			for (int i=0;i<50;i++)
			{
				if (enemy[i].flag)
				{
					n=enemytype[enemy[i].type];
					if (abs(bullet[j].pos.x-enemy[i].pos.x)+abs(bullet[j].pos.y-enemy[i].pos.y)<=30)
					{
						enemy[i].life-=bulletdamge;
						bullet[j].flag=0;
						if (enemy[i].life<=0)
						{
							enemy[i].flag=0;
							socre+=enemylife[enemy[i].type];
						}
					}
				}
			}
		}
	}
	if (bulletnum==50)
		bulletnum=0;
	if (enemynum==50)
		enemynum=0;

	enemycount+=10;
	//武器增强遇到自己
	if (abs(super.pos.x-plane_x)+abs(super.pos.y-plane_y)<=70)
	{
		if (bullettype<10)
			bullettype++;
		super.flag=0;
		super.pos.y=-1;
		if (bullettype>=4)
			bulletspeed+=2;
	}
	if (super.pos.y>=0)
		super.pos.y++;
	if (super.pos.y>HIGH)
	{
		super.pos.y=-1;
		super.flag=0;
	}
	//游戏难度
	if (gamelevel%3==0)
	{
		for (int i=0;i<5;i++)
			enemylife[i]++;
		gamelevel=1;
	}
}
void ShowData()
{
	int gamehard;
	gamehard=enemyspeed;
	TCHAR s1[]=_T("得分：");
	TCHAR s2[]=_T("游戏难度：");
	TCHAR s3[]=_T("移动鼠标控制飞机，左键开火");
	TCHAR s4[]=_T("游戏难度随时间增加");
	TCHAR s5[]=_T("敌人速度与生命都会增加");
	TCHAR s6[]=_T("越大的敌人血越后");
	TCHAR s7[]=_T("碰到S可以增强武器威力");
	char s[5];
	char ss[5];
	setlinecolor(WHITE);
	setlinestyle(BS_SOLID,4);
	settextcolor(WHITE);
	line(WIDTH,0,WIDTH,HIGH);
	settextstyle(30, 0, _T("宋体"));
	settextcolor(WHITE);
	sprintf(s, _T("%d"), socre);
	sprintf(ss, _T("%d"), gamehard);
	outtextxy(WIDTH+50, 60, s);
	outtextxy(WIDTH+40,20,s1);
	outtextxy(WIDTH+40,90,s2);
	outtextxy(WIDTH+50,120,ss);
	settextstyle(13, 0, _T("宋体"));
	outtextxy(WIDTH+10,300,s3);
	outtextxy(WIDTH+10,330,s4);
	outtextxy(WIDTH+10,360,s5);
	outtextxy(WIDTH+10,400,s6);
	outtextxy(WIDTH+10,430,s7);
 
}
void EndGame()
{
	EndBatchDraw();
	ShowData();
	TCHAR s[]=_T("碰到敌人 游戏结束");
	TCHAR s1[]=_T("按任意键退出");
	settextcolor(LIGHTRED);
	settextstyle(30, 0, _T("宋体"));
	outtextxy((WIDTH+200)/3,HIGH/2-200,s);
	outtextxy((WIDTH+200)/3,HIGH/2-150,s1);
}