easyX类平抛小球

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easyX类平抛小球

easyX类平抛小球

1.只需要在加速下落小球的情况下增加一个水平速度分量即可

#include<graphics.h>
#include<conio.h>
#define WIDTH 800   //窗口宽度
#define HEIGHT 600   //窗口高度int main()
{//设置小球坐标float ballX = 10;float ballY = 20;//设置水平以及竖直速度float vx = 30;float vy = 0.0;//设置水平加速度垂直加速度float g = 0.5;float a = 0.2;initgraph(WIDTH, HEIGHT);while (1){vx = vx - a;vy = vy + g;//改变ballX ballYballX = ballX + vx;ballY = ballY + vy;//设置反弹if (ballY >= HEIGHT - 10)   //下边界处理{vy = -0.95*vy;  }if (ballX >= WIDTH - 20)   //右边界处理{vx = -0.95*vx;}if (ballX <= 20)          //左边界处理{vx = -0.95 * vx;}if (ballY > HEIGHT - 10){ballY = HEIGHT - 10;ballX = ballX-vx;}cleardevice();fillcircle(ballX, ballY, 10);Sleep(100);}_getch();closegraph();return 0;
}