跳动的小球

STAR

[C++] 纯文本查看 复制代码

#include<bits/stdc++.h>
#include <graphics.h>             //包含EGE的头文件
#include<time.h>
using namespace std;
int width=800;
int hight=600;
struct ballon
{
	int r;
	float vx;
	float vy;
	float x;
	float y;
	float g;
	unsigned int R_color,G_color,B_color;
}ball[10000];
float inx(int min,int max)
{
	float t=rand()%(max-min)+min;
	return t;
}
 
int main()
{
    srand(time(0));//随机种子函数          
    for(int i =0;i<10000;i++)
    {
        ball[i].x = inx(ball[i].r*2+1,width-ball[i].r);
        ball[i].y = inx(ball[i].r*2+1,hight-ball[i].r);
        ball[i].vx = rand()%3;
        ball[i].vy = rand()%5;
        ball[i].r = 10+rand()%10;
        ball[i].g=0;
        ball[i].R_color = inx(10,255);
	    ball[i].G_color = inx(10,255);
	    ball[i].B_color = inx(10,255);
    }
	initgraph(width, hight);                //初始化图形界面
    setcolor(RED);  //设置画图线为红色 
    setbkcolor(WHITE);//设置背景颜色为白色
    setfillcolor(RED);//设置填充颜色为红色
    while(1)
    {
    	for(int i=0;i<10000;i++)
		{
        ball[i].vy=ball[i].vy+ball[i].g;
        ball[i].y=ball[i].vy+ball[i].y;
        ball[i].vx=ball[i].vx+ball[i].g;
        ball[i].x=ball[i].vx+ball[i].x;
        if(ball[i].y>=hight-ball[i].r||ball[i].y<=ball[i].r)
        {
            //ball[i].y=hight-ball[i].r;
            ball[i].vy=-ball[i].vy;
        }
        if(ball[i].x>=width-ball[i].r||ball[i].x<=ball[i].r)
        {
            //ball[i].x=width-ball[i].r;
             ball[i].vx=-ball[i].vx;
        }
        fillellipse(ball[i].x, ball[i].y, ball[i].r, ball[i].r); //画一个实心圆 
        //floodfillsurface(400, 300, RED);
        setfillcolor(EGERGB(ball[i].R_color, ball[i].G_color, ball[i].B_color));

		}
        Sleep(10);
        cleardevice();
    }
     
    getch();                            //暂停，等待键盘按键
  
    closegraph();        //关闭图形界面
    
    return 0;
}