int x; int bground = 150; int bgroundInc = 15; void setup() { size (200, 200); background(50); } void draw(){ for (x=1;x<=10;x++) { fill(204, 102, 0); line(x*20-20,25,200,200); line(x*20, 25, x*20, 0); } } void mousePressed() { if (bground <= 250){ bground += bgroundInc; background(bground); } else { bground = 50; } } void mouseDragged(){ bground = 50; } void keyPressed() { if (keyCode == ENTER) { fill(random(200), random(200), random(100)); ellipse(random(50), 150 + random(50),100, 100); } }