Tricky button example from GD105 Week 5

trickyButton.pde

int rectX, rectY, rectW, rectH;

void setup(){
  size(1024, 640);
  rectX = 200;
  rectY = 200;
  rectW = 100;
  rectH = 75;
}
void draw(){
  background(0);
  if ((mouseX >= rectX) &&  //the cursor must be to the right of rectX AND
      (mouseX <= rectX+rectW) && //the cursor must be to the left of the X and the rects width AND
      (mouseY>rectY) && //the cursor must be below the top edge AND
      (mouseY<rectY+rectH)){ //must be above the bottom edge (rectY+rectH)
         fill(random(255)); //if those 4 conditions are true, change the fill to a random BW value
         if (mousePressed){ //if all those conditions above are true AND the mouse is pressed, do the following...
          //background(random(255)); //maybe change the background randomly
          rectX = int(random(width - rectW)); //determine a new random x position
          rectY = int(random(height - rectH)); //determine a new random y position
         }
  }
  rect(rectX,rectY,rectW,rectH);
}