package elte.java2_utikalauz5.java3d;

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

/**
Ködös példaprogram.
<P align="center"><IMG src="{@docRoot}/../data/java3d/img/FogDemo.gif"></P>

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

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

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

	public FogDemo()
	{
		super("FogDemo");
        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(300,270);
		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();
		BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 1000.0);

		AmbientLight ambient = new AmbientLight();
		ambient.setColor( new Color3f( 0.9f, 0.9f, 0.9f ) );
		ambient.setInfluencingBounds( bounds );
		branchGroup.addChild( ambient );

		Color3f fogColor3f = new Color3f(0.9f,0.9f,0.9f);
		Background background = new Background(fogColor3f);
		background.setApplicationBounds(bounds);
		branchGroup.addChild(background);

		ExponentialFog exponentialFog = new ExponentialFog(fogColor3f,12.0f);
		exponentialFog.setInfluencingBounds(bounds);
		branchGroup.addChild(exponentialFog);

		Appearance appearance = new Appearance();
		Material material = new Material();
		material.setAmbientColor(0.0f,0.0f,1.0f);
		appearance.setMaterial(material);

		Transform3D transform3D1 = new Transform3D();
		transform3D1.set(1.0f, new Vector3f(0.0f,0.0f,0.0f));
		TransformGroup transformGroup1 = new TransformGroup(transform3D1);
		transformGroup1.addChild(new ColorCube(appearance).getShape());
		branchGroup.addChild(transformGroup1);

		Transform3D transform3D2 = new Transform3D();
		transform3D2.set(1.0f, new Vector3f(-4.5f,0.0f,-4.5f));
		TransformGroup transformGroup2 = new TransformGroup(transform3D2);
		transformGroup2.addChild(new ColorCube(appearance).getShape());
		branchGroup.addChild(transformGroup2);

		Transform3D transform3D3 = new Transform3D();
		transform3D3.set(1.0f, new Vector3f(-3.0f,0.0f,-12.0f));
		TransformGroup transformGroup3 = new TransformGroup(transform3D3);
		transformGroup3.addChild(new ColorCube(appearance).getShape());
		branchGroup.addChild(transformGroup3);



		return branchGroup;
	}

class UniverseBuilder {
	Locale			locale;

	UniverseBuilder(Canvas3D c)
	{
		Transform3D t = new Transform3D();
		Transform3D t2 = new Transform3D();
		t2.setEuler( new Vector3d(-25.0*(Math.PI/180.0),40.0*(Math.PI/180.0),0.0));
		t.set(4,new Vector3d(6.0,5.0,6.0));
		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 ColorCube {
	double verts[] = {
		// elso lap
		1.0, -1.0,  1.0,	1.0,  1.0,  1.0,
		-1.0,  1.0,  1.0,	-1.0, -1.0,  1.0,
		// hatso lap
		-1.0, -1.0, -1.0,	-1.0,  1.0, -1.0,
		1.0,  1.0, -1.0,	1.0, -1.0, -1.0,
		// jobb lap
		1.0, -1.0, -1.0,	1.0,  1.0, -1.0,
		1.0,  1.0,  1.0,	1.0, -1.0,  1.0,
		// bal lap
		-1.0, -1.0,  1.0,	-1.0,  1.0,  1.0,
		-1.0,  1.0, -1.0,	-1.0, -1.0, -1.0,
		// fedo lap
		1.0,  1.0,  1.0,	1.0,  1.0, -1.0,
		-1.0,  1.0, -1.0,	-1.0,  1.0,  1.0,
		// alaplap
		-1.0, -1.0,  1.0,	-1.0, -1.0, -1.0,
		1.0, -1.0, -1.0,	1.0, -1.0,  1.0
	};

	float normals[] = {
		0.0f, 0.0f, 1.0f,
		0.0f, 0.0f, 1.0f,
		0.0f, 0.0f, 1.0f,
		0.0f, 0.0f, 1.0f,

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

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

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

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

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

	};


	private Shape3D shape;

	public ColorCube(Appearance appearance)
	{
		QuadArray cube = new QuadArray(24, QuadArray.COORDINATES |QuadArray.NORMALS);

		cube.setCoordinates(0, verts);
		cube.setNormals(0,normals);

		shape = new Shape3D(cube, appearance);
	}

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