Please upgrade your browser to something new like Google Chrome. //Made with ProcessingLyon Tumblrify: //http://p5lyon.tumblr.com/ProcessingJSTumblr //English Version: //http://p5lyon.tumblr.com/ProcessingJSTumblrEn void setup() { size(400, 400); noStroke(); background(250,250,250); } void draw() { //hover rect(20, 300, 120, 50, 10); if(mouseX > 20 & mouseX 300 & mouseY 20 & mouseX 300 & mouseY < 350) { background(0,0,250); fill(255,255,0); ellipse(250, … Continue reading Alan’s button example