Measuring (and displaying) distance between two movable objects using SMT.

groomage

I working on a project and want to create two objects which I can find the center of - and then using these co-ordinates, measure the distance and relative positions of the objects in relation to one another. This is also using the SMT library to create movable objects, so this information and co-ordinates will be changed by user interaction.

I feel like I am making progress with my code, but have confused myself a little bit and am having trouble creating a way to find these central co-ordinates of the two shapes.

Any and all help is much appreciated!

Thanks

    import vialab.SMT.*;


    PShape ellipse1, ellipse2;

    float cX1, cY1; 

    int[] xpos = new int[10]; 
    int[] ypos = new int[10];

    void setup() {
      size(displayWidth, displayHeight, SMT.RENDERER);
      smooth();

      for (int i = 0; i < xpos.length; i ++ ) {
        xpos[i] = 0;
        cX1 = i;
      }
      for (int j = 0; j < ypos.length; j ++ ) {
        ypos[j] = 0;
        cY1 = j;
      }

      SMT.init( this, TouchSource.AUTOMATIC);

      Zone zone1 = new Zone( "GreenZone");
      SMT.add( zone1);

      Zone zone2 = new Zone( "RedZone");
      SMT.add( zone2);
    }


    void draw() {
      background(30);
      shapeMode(CENTER);
      noStroke();
        fill(255, 0, 0);
        ellipse1 = createShape(ELLIPSE, cX1, cY1, 500, 500);
        fill(0, 0, 255);
        ellipse2 = createShape(ELLIPSE, 0, 0, 500, 500);

        text("X:  "+cX1, 500, 60);
        text("Y:  "+cY1, 500, 80);
        text("mouse:  "+mouseX, 500, 100);

    }


    void drawGreenZone( Zone zone1) {
      //  fill(0, 255, 0);
      shape(ellipse1, 0, 0, 500, 500);
    }
    void pickDrawGreenZone( Zone zone1) {
      ellipse( 0, 0, 500, 500);
    }
    void touchGreenZone( Zone zone1) {
      zone1.drag();
    }

    void drawRedZone( Zone zone2) {
      //  fill(255, 0, 50);
      shape(ellipse2, 0, 0, 500, 500);
    }
    void pickDrawRedZone( Zone zone2) {
      ellipse( 0, 0, 500, 500);
    }
    //Touch function for "MyZone"
    void touchRedZone( Zone zone2) {
      zone2.rst();
    }