import javax.media.j3d.*; // Canvas3D etc
import java.applet.Applet; // Applet
import java.awt.BorderLayout; // BorderLayout, Frame
import com.sun.j3d.utils.applet.MainFrame; // MainFrame
import com.sun.j3d.utils.universe.*;
import java.awt.Frame;
import com.sun.j3d.utils.behaviors.mouse.*;
import javax.vecmath.*;

public class Prog4 extends Applet {
	public Prog4() {
		setLayout ( new BorderLayout() );
		Canvas3D c = new Canvas3D ( null );
		add ( "Center", c );
		BranchGroup scene = createSceneGraph();
		createLights ( scene );
		SimpleUniverse u = new SimpleUniverse ( c );
		u.getViewingPlatform().setNominalViewingTransform();
		u.addBranchGraph ( scene );
	}

	/* from SpinMouse.java */
	private TransformGroup defaultMouseGroup() {
		TransformGroup mouseGroup = new TransformGroup();
		mouseGroup.setCapability ( TransformGroup.ALLOW_TRANSFORM_READ );
		mouseGroup.setCapability ( TransformGroup.ALLOW_TRANSFORM_WRITE );
		BoundingSphere bounds = new BoundingSphere (
			new Point3d ( 0.0, 0.0, 0.0 ), 100.0 );
		MouseRotate behavior1 = new MouseRotate ( mouseGroup );
		mouseGroup.addChild ( behavior1 );
		behavior1.setSchedulingBounds ( bounds );
		MouseZoom behavior2 = new MouseZoom ( mouseGroup );
		mouseGroup.addChild ( behavior2 );
		behavior2.setSchedulingBounds ( bounds );
		MouseTranslate behavior3 = new MouseTranslate ( mouseGroup );
		mouseGroup.addChild ( behavior3 );
		behavior3.setSchedulingBounds ( bounds );
		return mouseGroup;
	}

	/* from Lit.java, lighting off by default? No off if setAppearance(null) */
	private void createLights ( BranchGroup graphRoot ) {
		BoundingSphere bounds = new BoundingSphere (
			new Point3d ( 0.0, 0.0, 0.0 ), 100.0 );
		Color3f ambientLightColor = new Color3f ( 0.2f, 0.2f, 0.2f );
		AmbientLight ambientLight = new AmbientLight ( ambientLightColor );
		ambientLight.setInfluencingBounds ( bounds );
		graphRoot.addChild ( ambientLight );
		Color3f lightColor = new Color3f ( 0.9f, 0.9f, 0.9f );
		Vector3f direction = new Vector3f ( 1.0f, 1.0f, -1.0f );
		DirectionalLight light1 = new DirectionalLight( lightColor, direction );
		light1.setInfluencingBounds ( bounds );
		graphRoot.addChild ( light1 );
	}

	private BranchGroup createSceneGraph() {
		BranchGroup objRoot = new BranchGroup();
		TransformGroup objTrans = defaultMouseGroup();
		objRoot.addChild ( objTrans );
		NormalTetra x = new NormalTetra();
		objTrans.addChild ( x );
		return objRoot;
	}

	public static void main ( String[] args ) {
		Frame frame = new MainFrame ( new Prog4(), 256, 256 );
	}
}