//exercise 5-5 simple rollover using logical operators
//int x = 50;
//int y = 50;
//int w = 100;
//int h = 75;
//
//void setup() {
//  size(400,400);
//}
//
//void draw() {
//  background(0);
//  stroke(255);
//  if(mouseX > 50 && mouseY > 50 && mouseX < 150 && mouseY < 125) {
//    fill(255);
//  } 
//  else {
//    fill(0);
//  }
//  rect(x,y,w,h);
//}

class Button {
  //Button location and size
  float x;
  float y;
  float w;
  float h;
  boolean on; //is it on or off?
  
  Button(float x_, float y_, float w_, float h_) {
    x = x_;
    y = y_;
    w = w_;
    h = h_;
    on = false; //button starts as off
  }
  
  void click(int mx, int my) { //initiate two new local variables for mouse location
    //check to see if mouse is inside rectangle
    if (mx > x && mx < x+w && my > y && my < y+h) {
      on = !on; //not on - ! means "not"
  }
  }
  
  //draw button
  void display() {
    //rectMode(CORNER);
    stroke(0);
    //color changes based on button state
     if (on) {
      fill(#DE0D0D);
    } else {
      fill (0);
    }
    rect(x, y, w, h);
  }
}