//Title:      robot_arm.java
//Version:
//Copyright:  Copyright (c) 2001
//Author:     SyGem Software

import java.awt.*;
import java.applet.*;

import com.sygem.jazz3d3.*;
import com.sygem.jazz3d3.primitive.Cube3d;
import com.sygem.jazz3d3.primitive.Checkerboard3d;

public class robot_arm extends Applet implements Runnable {
	Thread m_ce;
	World myWorld;
	int light1;
	int pid,pid2;
	int arm1_id;
	int arm2_id;
	int arm3_id;

	boolean antialias = false;
	boolean bilinear = false;

	//Construct the applet
	public robot_arm() {
	}

	//Initialize the applet
	public void init() {

		resize(400,300);
		myWorld = new World(this);

		setLayout(new BorderLayout());
		add("Center", myWorld);
		myWorld.setDelay(0);

		RenderSolid g_shader = new RenderSolid();

		Checkerboard3d base = new Checkerboard3d(2,2,0,-0.5,10);
		base.scaleObject(2,2,2);
		base.rotateWorld(90,0,0);
		base.setRenderer(g_shader);

		Cube3d parent = new Cube3d(0,-0.4,10);
		parent.scaleObject(1,0.2,1);
		parent.setColour(255,0,0);
		parent.setRenderer(g_shader);

		Cube3d arm1 = new Cube3d(0,0.2,10);
		arm1.scaleObject(0.1,1,0.1);
		arm1.setColour(0,255,0);

		Cube3d arm2 = new Cube3d(0.46,0.7,10);
		arm2.setColour(0,0,255);
		arm2.scaleObject(1,0.08,0.08);

		Cube3d arm3 = new Cube3d(0.92,0.45,10);
		arm3.setColour(255,255,0);
		arm3.scaleObject(0.06,0.5,0.06);

		arm3_id = arm2.addChild(arm3,0,0.21,0);
		arm2_id = arm1.addChild(arm2,-0.46,0,0);
		arm1_id = parent.addChild(arm1,0,0.2,0);

		pid = myWorld.addObject(base);
		pid2 = myWorld.addObject(parent);

		Light temp_light = new Light(0,-0.5,0.5);
		light1 = myWorld.addLight(temp_light);

		myWorld.getCamera().translateWorld(0,6,1);
		myWorld.getCamera().pointAt(myWorld.getObject(pid2));

	}

	//Start the applet
	public void start() {
		if (m_ce == null) {
			m_ce = new Thread(this);
			m_ce.start();
		}
	}

	//Stop the applet
	public void stop() {
		if (m_ce != null) {
			m_ce.stop();
			m_ce = null;
		}
	}

	//Destroy the applet
	public void destroy() {
	}

	public void run() {
		int iCount = 0;
		long lTime0 = System.currentTimeMillis();

		myWorld.prep();

		while (true) {

			myWorld.getObject(pid2).rotateWorld(0,2,0);
			myWorld.getObject(arm1_id).rotateLocal(0,-4,0);
			myWorld.getObject(arm2_id).rotateLocal(0,1,1);
			myWorld.getObject(arm3_id).rotateLocal(1,0,-3);
			myWorld.getCamera().pointAt(myWorld.getObject(arm3_id));
			myWorld.redraw();
			iCount++;
			if((iCount%50) == 0) {
				lTime0-= System.currentTimeMillis();
				lTime0 =-lTime0;
				getAppletContext().showStatus((50000./lTime0)+" frames/second");
				lTime0 = System.currentTimeMillis();
			}
		}
	}

	public boolean keyDown(Event evt,int key) {

		if ((char)key=='a') {antialias=!antialias; myWorld.setAntiAliasing(antialias); return true; }
		if ((char)key=='b') {bilinear=!bilinear; myWorld.setBilinear(bilinear); return true; }

		return true;
	}

}