Hello.

I have recently stumbled across processing and have decided to try learn it myself as a first computer language.

What I am currently trying to do is simply have a square and circle appear on a mousePressed but not before. Then upon dragging the mouse (with the square and circle intact) have the circle and only the circle disappear on a mouseRelease, leaving the square. Im trying to sort of replicate a 'drag and drop' action.

Not sure if I should be using all three mouse variables (pressed, drag, released).

2. int circlelocX, circlelocY;
   int rectlocX, rectlocY;
   boolean release = false;
   boolean start = false;
3. void setup()  {
     size(350,500);
     rectMode(CENTER);
     ellipseMode(CENTER);
     smooth();
     frameRate(60);
   }
    
   void draw()  {
   background(255);        
   // should use if statement here for start condition???
   noFill();
   fill(255,0,0);
   ellipse(circlelocX,circlelocY,75,100);
   noFill();
   rect(rectlocX, rectlocY, 75, 100);
   }
    void mousePressed()  {
    rectlocX=mouseX;
    rectlocY=mouseY; 
    circlelocX=mouseX;
    circlelocY=mouseY;
   }
4. void mouseDragged()  {
     rectlocX=mouseX;
     rectlocY=mouseY; 
     circlelocX=mouseX;
     circlelocY=mouseY;
   }
5. void mouseReleased()  { 
       circlelocX=-1000;    
   }
6. //release = true;   //How to make the oval disapear only. Leaving the square.