Vibrating rectangles: Difference between revisions

=={{header|C}}==

Dimensions of the rectangles, their number and the animation delay can be configured. Requires the [http://www.cs.colorado.edu/~main/bgi/cs1300/ WinBGIm] library.

<lang C>

#include<graphics.h>

void vibratingRectangles(int winWidth,int winHeight,int leastLength,int leastWidth,int num, int msec)

{

int color = 1,i,x = winWidth/2, y = winHeight/2;

while(!kbhit()){

setcolor(color++);

for(i=num;i>0;i--){

rectangle(x - i*leastLength,y - i*leastWidth,x + i*leastLength,y + i*leastWidth);

delay(msec);

}

if(color>MAXCOLORS){

color = 1;

}

}

}

int main()

{

initwindow(1000,1000,"Vibrating Rectangles...");

vibratingRectangles(1000,1000,30,15,20,500);

closegraph();

return 0;

}

<lang>