good
fullscreen int c=0;
void setup()
{
size(300,300);
stroke(0,50);
background(255);
}
void draw()
{
int i;
if(c % 50 == 0)
{
for(i=5;i>0;i--)
{
ellipse(mouseX, mouseY, i * 5, i * 5);
}
}
line(150,150,mouseX,mouseY);
c++;
}