package elte.java2_utikalauz5.java3d;

import	java.awt.*;
import	javax.vecmath.*;
import	javax.media.j3d.*;

/**
Háromszögek megjelenítése egy ablakban.

@link.forrásfájl {@docRoot}/../data/java3d/src TriangleFanArrayDemo.java
@link.letöltés {@docRoot}/../data/java3d TriangleFanArrayDemo.jar
@since Java 2 Útikalauz programozóknak 5.0
*/
class TriangleFanArrayDemo extends Frame
{

    /** Verziószám */
    private final static long serialVersionUID = 15L;

	public static void main(String[] args)
	{
		new TriangleFanArrayDemo();
	}

	public TriangleFanArrayDemo()
	{
		super("TriangleFanArrayDemo");
        enableEvents(java.awt.AWTEvent.WINDOW_EVENT_MASK);

		GraphicsConfiguration config = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getBestConfiguration(new GraphicsConfigTemplate3D());
		Canvas3D c = new Canvas3D(config);
		add(c);

		UniverseBuilder u = new UniverseBuilder(c);
		BranchGroup scene = createSceneGraph();
		u.addBranchGraph(scene);

		setSize(300,400);
		setVisible(true);
	}

        /**
        Ablakesemény feldolgozása, bezáráskor kilépés.

        @param esemény A fellépett esemény
        */
        @Override
        protected void processWindowEvent(java.awt.event.WindowEvent esemény) {
            if (esemény.getID() == esemény.WINDOW_CLOSING) System.exit(0);
            super.processWindowEvent( esemény );
        }

	public BranchGroup createSceneGraph()
	{
		BranchGroup branchGroup = new BranchGroup();
		TransformGroup transformGroup = new TransformGroup();
		transformGroup.addChild(new Triangles().getShape());
		branchGroup.addChild(transformGroup);
		return branchGroup;
	}


class UniverseBuilder {
	Locale			locale;

	UniverseBuilder(Canvas3D c)
	{
		Transform3D t = new Transform3D();
		Transform3D t2 = new Transform3D();
		t2.setEuler( new Vector3d(-35.0*(Math.PI/180.0),45.0*(Math.PI/180.0),0.0));
		t.set(4,new Vector3d(4.0,3.0,4.0));
		t.mul(t,t2);

		VirtualUniverse	universe = new VirtualUniverse();
		locale = new Locale(universe);

		PhysicalBody body = new PhysicalBody();
		PhysicalEnvironment environment = new PhysicalEnvironment();
		BranchGroup viewPlatformBranchGroup = new BranchGroup();
		TransformGroup viewPlatformTransformGroup = new TransformGroup(t);
		ViewPlatform viewPlatform = new ViewPlatform();

		View view = new View();
		view.addCanvas3D(c);
		view.setPhysicalBody(body);
		view.setPhysicalEnvironment(environment);
		view.attachViewPlatform(viewPlatform);

		viewPlatformTransformGroup.addChild(viewPlatform);
		viewPlatformBranchGroup.addChild(viewPlatformTransformGroup);
		locale.addBranchGraph(viewPlatformBranchGroup);
	}

	void addBranchGraph(BranchGroup bg)
	{
		locale.addBranchGraph(bg);
	}
}

class Triangles {
	double verts[] = {

		0.0, 0.0, 0.0,
		-1.0,1.0,0.0,
		-1.0,1.0,1.0,

		-1.0,0.0,1.0,
		0.0,0.0,1.0,
		0.5,-1.0,1,

		2.0, 1.0, 0.0,
		1.0,2.0,0.0,
		1.0,2.0,1.0,
		1.0,1.0,1.0,

	};

	float[] colors = {

		1.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 1.0f,

		1.0f, 1.0f, 0.0f,
		1.0f, 0.0f, 1.0f,
		0.0f, 1.0f, 1.0f,

		1.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 1.0f,
		1.0f, 0.0f, 0.0f,
	};

	int[] strips = {
		6,4
	};


	private Shape3D shape;

	public Triangles()
	{
		TriangleFanArray triangle = new TriangleFanArray(10, TriangleFanArray.COORDINATES | TriangleFanArray.COLOR_3,strips );

		triangle.setCoordinates(0, verts);
		triangle.setColors(0, colors);

		PolygonAttributes polygonAttributes = new PolygonAttributes();
		polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_LINE);
		Appearance appearance = new Appearance();
		appearance.setPolygonAttributes(polygonAttributes);

		shape = new Shape3D(triangle, appearance);
	}

	public Shape3D getShape()
	{
		return shape;
	}
}
}