disco floor - OpenProcessing

mySketch
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void setup() {
 size(800,800);
}
​
void draw() {
 background(0);
 
 if (mouseX > 400 && mouseY < 400) {
   fill(255,100,100);
   rectMode(CENTER);
   rect(600,200,400,400);
 }else if (mouseY > 400 && mouseX < 400){
   fill(230,220,70);
   rectMode(CENTER);
   rect(200,600,400,400);
 }else if (mouseY < 400 && mouseX < 400){
   fill(80,230,80);
   rectMode(CENTER);
   rect(200,200,400,400);
 }else if (mouseY > 400 && mouseX > 400) {
   fill(100,118,229);
   rectMode(CENTER);
   rect(600,600,400,400);
 }
}