import java.applet.Applet;
import java.awt.*;
import com.sun.j3d.utils.universe.SimpleUniverse;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.util.Enumeration;

public class SuurL3 extends Applet {
public class MorphBehavior extends Behavior{

        private Morph targetMorph;
        private Alpha alpha;
        private double[] weights = {0, 0}; 
        private WakeupCondition trigger = new WakeupOnElapsedFrames(10);

        MorphBehavior(Morph targetMorph, Alpha alpha){
            this.targetMorph = targetMorph;
            this.alpha = alpha;
        }

        public void initialize(){
            this.wakeupOn(trigger);
        }

        public void processStimulus(Enumeration e){
             double x=alpha.value();  //esimesest kujundist võetakse osa, mida näitab alpha
            weights[0] = x;
            weights[1] = 1-x;         // teisest võetakse ülejäänu
            targetMorph.setWeights(weights);
            this.wakeupOn(trigger);
        }

    }

  public SuurL3() {
	setLayout(new BorderLayout());
	Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
	add(c, BorderLayout.CENTER);

	BranchGroup juur = new BranchGroup();
	
  Point3d p1=new Point3d(0, 0, 0),
          p2=new Point3d(0, 1, 0),
          p3=new Point3d(0.5, 0, 0), 
          p3a=new Point3d(0.5, 0.5, 0);
  Point3d[] jooned={
    p1, p2,
    p1, p3    
  };

  Point3d[] jooned2={
    p1, p2,
    p1, p3a    
  };

    LineArray joonemassiiv1=new LineArray(4, LineArray.COORDINATES | LineArray.COLOR_3);
    joonemassiiv1.setCoordinates(0, jooned);

    LineArray joonemassiiv2=new LineArray(4, LineArray.COORDINATES | LineArray.COLOR_3);
    joonemassiiv2.setCoordinates(0, jooned2);

   GeometryArray ga[]={joonemassiiv2, joonemassiiv1};
   Morph m1=new Morph(ga);
   m1.setCapability(Morph.ALLOW_WEIGHTS_WRITE);
   
    Background background = new Background();
        background.setColor(1f, 1f, 1f);
        background.setApplicationBounds(new BoundingSphere());
        juur.addChild(background);

   Transform3D t3=new Transform3D();
   t3.setTranslation(new Vector3f(0, -0.5f, 0));
   TransformGroup tg=new TransformGroup(t3);
   juur.addChild(tg);
   tg.addChild(m1);
   
        Alpha alpha = new Alpha(-1, Alpha.INCREASING_ENABLE | Alpha.DECREASING_ENABLE, 10, 10, 2000, 1000, 1000, 1000, 1000, 1000);
        MorphBehavior morphBehav = new MorphBehavior(m1, alpha);
        morphBehav.setSchedulingBounds(new BoundingSphere());
     juur.addChild(morphBehav);

   
	juur.compile();

	SimpleUniverse u = new SimpleUniverse(c);
   u.getViewingPlatform().setNominalViewingTransform();
	u.addBranchGraph(juur);
  }

    public static void main(String[] args) {
      Frame f=new Frame("Vahepealsed kujundid");
      f.add(new SuurL3());
      f.setSize(300, 300);
      f.setVisible(true);
    }
}