int numShapes = 12;  //num on side of grid of shapes
MyShape[] shape = new MyShape[numShapes*numShapes];
MyGroup group;
MyControl control;

//*****************************************
void setup(){

  size(300,400);

  for(int y=0; y<numShapes; y++){
    for(int x=0; x<numShapes; x++){
      shape[y*numShapes+x] = new MyShape(5,9.,30+x*20., 30+y*20.);
    }
  }

  group = new MyGroup(numShapes*numShapes, shape);
  group.move(10.,10.);
  control = new MyControl();
}

//*****************************************
void draw( ){
  background(255);
  control.coordsDisplay.setText("x= " + mouseX + "   y= " + mouseY);
  group.draw();

}

int xfirst, yfirst;
//*****************************************
void mousePressed(){

  xfirst = mouseX;  // remember this point
  yfirst = mouseY;

  // Pick a shape
  for(int i=0; i<group.numShapes; i++)
    if(group.shapes[i].select((float)mouseX, (float)mouseY, 5.) == true){
      control.input.setText("Selected = " + i);
      break;
    }


}

//*****************************************
void mouseDragged(){

  int xoff = mouseX - xfirst;  // get the offset
  int yoff = mouseY - yfirst;
  MyPoint ref = new MyPoint(0.,0.);


  for(int i=0; i<group.numShapes; i++)
    if(group.shapes[i].isSelected){
      ref = group.shapes[i].centroid();
      if(control.status.equals("Move"))
        group.shapes[i].move(( float)xoff, ( float)yoff);
      if(control.status.equals("Rotate"))
        group.shapes[i].rotate(( float)xoff, ref);
        if(control.status.equals("Scale"))
        group.shapes[i].scale((float)mouseX/(float)xfirst, (float)mouseY/(float)yfirst, ref);
    }

  xfirst = mouseX;  //remember this point
  yfirst = mouseY;

}