#include "stdio.h"
#include "conio.h"
#include "time.h"
#include "stdlib.h"
#include "graphics.h"
#include "math.h"

#define PI 3.14

main()
{
float i ,j ,k = -2;
int gd=DETECT ,gm;
int Mx ,My , xd = 1, yd = 1 ,kd = 1 ,cr = 1 ,cd = 1;
float x = 0 ,y = 0 ,xm = 0 ,ym = 0;

initgraph(&gd ,&gm ,"");

Mx = getmaxx()/2;
My = getmaxy()/2;

while(!kbhit())
{
for(i = 0;i < PI;i+=0.05)
{
for(j = 0;j < PI ;j+=0.05)
{
x = cos(i+k)*30*j+Mx+xm;
y = sin(j+k)*30*i+My+ym;

putpixel(x ,y ,cr);

}
}
xd = (xm > 200)? -1: xd;
xd = (xm < -200)? 1: xd;

yd = (ym > 250)? -1: yd;
yd = (ym < -250)? 1: yd;

kd = (k > PI*2)? -1: kd;
kd = (k < -PI*2)? 1: kd;

cd = (cr > 11)? -1: cd;
cd = (cr < 5)? 1: cd;

k += 0.1*kd;
xm += 2*xd;
ym += 2*yd;
cr += 4*cd;

delay(10000);
cleardevice();
}
getch();
}



写的有点乱

[此贴子已经被作者于2007-1-29 15:56:21编辑过]

#include "stdio.h"
#include "conio.h"
#include "time.h"
#include "stdlib.h"
#include "graphics.h"
#include "math.h"

#define PI 3.14

main()
{
float i ,j ,k = -2;
int gd=DETECT ,gm;
int Mx ,My , xd = 1, yd = 1 ,kd = 1 ,cr = 2 ,cd = 1;
float x = 0 ,y = 0 ,xm = 0 ,ym = 0;

initgraph(&gd ,&gm ,"");

Mx = getmaxx()/2;
My = getmaxy()/2;

while(!kbhit())
{
for(i = 0;i < PI;i+=0.05)
{
for(j = 0;j < PI ;j+=0.05)
{
x = cos(2*i+k)*30*j+Mx+xm;
y = sin(2*j+k)*30*i+My+ym;

putpixel(x ,y ,cr);

}
}
xd = (xm > 200)? -1: xd;
xd = (xm < -200)? 1: xd;

yd = (ym > 250)? -1: yd;
yd = (ym < -250)? 1: yd;

kd = (k > PI*4)? -1: kd;
kd = (k < -PI*4)? 1: kd;
/*
cd = (cr > 11)? -1: cd;
cd = (cr < 5)? 1: cd;
*/
k += 0.1*kd;
xm += 2*xd;
ym += 2*yd;
/* cr += 4*cd; */

delay(10000);
cleardevice(); /* 感觉图片有点闪就把这个地方改为定点覆盖就行 */
}
getch();
}

[此贴子已经被作者于2007-2-1 18:22:27编辑过]

for(j = 0;j < PI ;j+=0.05)
{
x = cos(3*i+k)*30*j+Mx+xm;
y = sin(3*j+k)*30*i+My+ym;

putpixel(x ,y ,cr);

}
}

把那个数改成其他的数有更好的效果

哇,我运行了下,第二个图真好看

for(j = 0;j < PI ;j+=0.05)
{
x = cos(k*i/2+k)*30*j+Mx+xm;
y = sin(k*j/2+k)*30*i+My+ym;

putpixel(x ,y ,cr);

}

这么改也挺有意思

终于有人理我拉

支持!

以下是引用田里兵蜂在2007-2-1 18:25:33的发言：

哇,我运行了下,第二个图真好看

效果真不错 第二个很像WINDOWS的屏幕保护吖  今天研究一下！

这两个效果更好：

x = cos(2*i+k+j)*30*j+Mx+xm;
y = sin(2*j+k+i)*30*i+My+ym;


x = cos(2*i+k*j)*30*j+Mx+xm;
y = sin(2*j+k*i)*30*i+My+ym;