int a, b;
void setup() {
size (750,750);
background (255,255,255);
smooth ();
fill (0);
stroke (128,128,255,128);
strokeWeight (75);
ellipse (375,375,563,563);
int a = 750, b = 750;

}
void draw () {
a = a * 2;
b = b / 2;
stroke (255,255,255,2);
strokeWeight (1);
smooth ();
noFill ();
line (mouseX,mouseY, 375,0);
line (mouseX,mouseY, 0,750);
line (mouseX,mouseY, 750,750);
fill (128,128,255,4);
ellipse (mouseX, mouseY, 4,4);
stroke (255,255,255,4);
strokeWeight (1);
smooth ();
noFill ();

line (750,mouseY,(random(750)),(random(a)));
line (mouseX,750,(random(750)),(random(750)));
line (mouseX,0,(random(a)),(random(750)));
line (0,mouseY,(random(a)),(random(a)));



}