package alice.test.topology.movement;

import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;

import javax.media.j3d.Appearance;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.DirectionalLight;
import javax.media.j3d.Texture;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.vecmath.Color3f;
import javax.vecmath.Vector3f;

import com.sun.j3d.utils.geometry.Box;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.universe.ViewingPlatform;

public final class FishMovement {
	
	private Vector3f vector = null;
	private Transform3D transform1 = null;
	private TransformGroup transform_group = null;
	private Canvas3D canvas = null;
	
	private static class instanceHolder{
		private static final FishMovement instance = new FishMovement();
	}
	public static FishMovement getInstance() {
		return instanceHolder.instance;
		
	}
	
	private FishMovement(){
		JFrame frame = new JFrame();
		frame.setSize(1000,1000);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		JPanel cp = new JPanel();
		frame.add(cp);
		
		
		GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
		
		canvas = new Canvas3D(config);
		canvas.setBounds(0,0,1000,1000);//set canvas size 
		cp.add(canvas);//register canvas with ContentPane
				
		SimpleUniverse universe = new SimpleUniverse(canvas);
		
		BranchGroup group1 = createBranch();
		universe.addBranchGraph(group1);
		
		BranchGroup group2 = createLight();
		universe.addBranchGraph(group2);
		
		ViewingPlatform camera = universe.getViewingPlatform();
		camera.setNominalViewingTransform();
		frame.setVisible(true);
	}
	
	private BranchGroup createBranch(){
		BranchGroup scene = new BranchGroup();
		transform_group = new TransformGroup();
		scene.addChild(transform_group);
		transform_group.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		Box box = new Box(0.1f,0.1f,0.0f,
				Box.GENERATE_NORMALS|Box.GENERATE_TEXTURE_COORDS,createAppearance());
		transform_group.addChild(box);
		setLocation(0.0f,0.0f);
		return scene;
	}
	
	private Appearance createAppearance() {
		Appearance app = new Appearance();
		Image image = null; 	
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		image = toolkit.getImage("../image/fish.jpg");
		
		MediaTracker mt = new MediaTracker(canvas);
		mt.addImage(image, 0);
		mt.checkAll(true);
		try {
			mt.waitForID(0);
			
		}catch (InterruptedException e){
			e.printStackTrace();
			
		}
		Texture texture = new TextureLoader(image,canvas).getTexture();
		app.setTexture(texture);
		
		
		return app;
	}
	
	private BranchGroup createLight(){
		BranchGroup scene = new BranchGroup();
		Color3f light_color  = new Color3f(1.7f,1.7f,1.7f);
		Vector3f light_direction = new Vector3f(0.2f,-0.2f,-0.6f);
		DirectionalLight light = new DirectionalLight(light_color,light_direction);
		BoundingSphere bounds = new BoundingSphere();
		light.setInfluencingBounds(bounds);
		scene.addChild(light);
		return scene;
	}
	
	public void setLocation(float x,float y){
		transform1 = new Transform3D();
		vector = new Vector3f(x,y,0.0f);
		transform1.setTranslation(vector);
		transform_group.setTransform(transform1);
	}
	
	public void setLocation(float x,float y,float z){
		transform1 = new Transform3D();
		vector = new Vector3f(x,y,z);
		transform1.setTranslation(vector);
		transform_group.setTransform(transform1);
	}

	
	

}