package applets.picker;

import shout3d.*;
import shout3d.core.*;


public class Picker3Panel extends Shout3DPanel implements DeviceObserver {

	Picker myPicker;
   Node[] pathToPick;

   Material activeMat;
   float[] on = {.5f, .5f, .5f};
   float[] off = {0f, 0f, 0f};


	public Picker3Panel(Shout3DApplet applet) {
		super(applet);
	}



   public void customInitialize() {

		myPicker = getNewPicker();
		addDeviceObserver(this, "MouseInput", null);
	}


	protected void finalize() {
		removeDeviceObserver(this, "MouseInput");
	}

	public boolean onDeviceInput(DeviceInput di, Object userData) {
		MouseInput mi = (MouseInput) di;

		if (mi.which == MouseInput.MOVE){
			pathToPick = myPicker.pickClosest(mi.x,mi.y);


			//if something intersected
			if (pathToPick != null) {

						Shape s = (Shape) pathToPick[pathToPick.length-2];
						Appearance ap = (Appearance) s.appearance.getValue()[0];
						activeMat = (Material) ap.material.getValue();
						activeMat.emissiveColor.setValue(on);

			}

			//if nothing intersected
			else {
		   	if (activeMat!= null) {
					activeMat.emissiveColor.setValue(off);
					activeMat = null;			   	
			   }
			}

			return true;
      }
		return false;
    }

}