java-game-lib-cvs Mailing List for Lightweight Java Game Library

Update of /cvsroot/java-game-lib/LWJGL/src/java/org/lwjgl/test/opengl/awt
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv5415/src/java/org/lwjgl/test/opengl/awt

Modified Files:
	AWTGears.java 
Log Message:
cleanup

Index: AWTGears.java
===================================================================
RCS file: /cvsroot/java-game-lib/LWJGL/src/java/org/lwjgl/test/opengl/awt/AWTGears.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- AWTGears.java	7 Mar 2005 16:15:14 -0000	1.1
+++ AWTGears.java	7 Mar 2005 16:17:25 -0000	1.2
@@ -5,7 +5,6 @@
 package org.lwjgl.test.opengl.awt;
 
 import java.awt.Frame;
-import java.awt.Toolkit;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.nio.FloatBuffer;
@@ -16,15 +15,14 @@
 import org.lwjgl.opengl.AWTGLCanvas;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GLContext;
-import org.lwjgl.opengl.glu.GLU;
 
 /**
  * $Id$
  * <p>
- * Tests AWTGLCanvas functionality
+ * AWT version of the gears demo
  * <p>
  * @version $Revision$
- * @author $Author$
+ * @author Brian Matzon <br...@ma...>
  */
 public class AWTGears extends Frame {
 	

Update of /cvsroot/java-game-lib/LWJGL/src/java/org/lwjgl/test/opengl/awt
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4805/src/java/org/lwjgl/test/opengl/awt

Added Files:
	AWTGears.java 
Log Message:
AWT version of gears

--- NEW FILE: AWTGears.java ---
/* 
 * Copyright (c) 2004-2005 Covalent Software Ltd
 * All rights reserved.
 */
package org.lwjgl.test.opengl.awt;

import java.awt.Frame;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.nio.FloatBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.ARBTransposeMatrix;
import org.lwjgl.opengl.AWTGLCanvas;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GLContext;
import org.lwjgl.opengl.glu.GLU;

/**
 * $Id$
 * <p>
 * Tests AWTGLCanvas functionality
 * <p>
 * @version $Revision$
 * @author $Author$
 */
public class AWTGears extends Frame {
	
	/** AWT GL canvas */
	private AWTGLCanvas canvas0;
	
	private float	view_rotx	= 20.0f;

	private float	view_roty	= 30.0f;

	private float	view_rotz	= 0.0f;

	private int		gear1;

	private int		gear2;

	private int		gear3;

	private float	angle			= 0.0f;

	/**
	 * C'tor
	 */
	public AWTGears() throws LWJGLException {
		setTitle("Gears");
		setSize(300, 300);
		setLayout(null);
		add(canvas0 = new AWTGLCanvas() {
			long startTime = 0;
			long fps = 0;			
			public void paintGL() {
				
				if(startTime == 0) {
					setup();
					startTime = System.currentTimeMillis() + 5000;
				}
				
				try {
					angle += 2.0f;
					GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

					GL11.glPushMatrix();
					GL11.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
					GL11.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
					GL11.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);

					GL11.glPushMatrix();
					GL11.glTranslatef(-3.0f, -2.0f, 0.0f);
					GL11.glRotatef(angle, 0.0f, 0.0f, 1.0f);
					GL11.glCallList(gear1);
					GL11.glPopMatrix();

					GL11.glPushMatrix();
					GL11.glTranslatef(3.1f, -2.0f, 0.0f);
					GL11.glRotatef(-2.0f * angle - 9.0f, 0.0f, 0.0f, 1.0f);
					GL11.glCallList(gear2);
					GL11.glPopMatrix();

					GL11.glPushMatrix();
					GL11.glTranslatef(-3.1f, 4.2f, 0.0f);
					GL11.glRotatef(-2.0f * angle - 25.0f, 0.0f, 0.0f, 1.0f);
					GL11.glCallList(gear3);
					GL11.glPopMatrix();

					GL11.glPopMatrix();					
					swapBuffers();
				} catch (LWJGLException e) {
					throw new RuntimeException(e);
				}
				if (startTime > System.currentTimeMillis()) {
					fps++;
				} else {
					long timeUsed = 5000 + (startTime - System.currentTimeMillis());
					startTime = System.currentTimeMillis() + 5000;
					System.out.println(fps + " frames in " + (float) (timeUsed / 1000f) + " seconds = "
							+ (fps / (timeUsed / 1000f)));
					fps = 0;
				}				
			}
		});
		canvas0.setBounds(0, 0, 300, 300);
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				dispose();
			}
		});
		setResizable(true);
		setVisible(true);
		
		new Thread() {
			{
				setDaemon(true);
			}
			public void run() {
				for (;;) {
					canvas0.repaint();
				}
			}
		}.start();
	}
	
	private void setup() {
		//	 setup ogl
		FloatBuffer pos = BufferUtils.createFloatBuffer(4).put(new float[] { 5.0f, 5.0f, 10.0f, 0.0f});
		FloatBuffer red = BufferUtils.createFloatBuffer(4).put(new float[] { 0.8f, 0.1f, 0.0f, 1.0f});
		FloatBuffer green = BufferUtils.createFloatBuffer(4).put(new float[] { 0.0f, 0.8f, 0.2f, 1.0f});
		FloatBuffer blue = BufferUtils.createFloatBuffer(4).put(new float[] { 0.2f, 0.2f, 1.0f, 1.0f});
		pos.flip();
		red.flip();
		green.flip();
		blue.flip();

		GL11.glLight(GL11.GL_LIGHT0, GL11.GL_POSITION, pos);
		GL11.glEnable(GL11.GL_CULL_FACE);
		GL11.glEnable(GL11.GL_LIGHTING);
		GL11.glEnable(GL11.GL_LIGHT0);
		GL11.glEnable(GL11.GL_DEPTH_TEST);

		/* make the gears */
		gear1 = GL11.glGenLists(1);
		GL11.glNewList(gear1, GL11.GL_COMPILE);
		GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, red);
		gear(1.0f, 4.0f, 1.0f, 20, 0.7f);
		GL11.glEndList();

		gear2 = GL11.glGenLists(1);
		GL11.glNewList(gear2, GL11.GL_COMPILE);
		GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, green);
		gear(0.5f, 2.0f, 2.0f, 10, 0.7f);
		GL11.glEndList();

		gear3 = GL11.glGenLists(1);
		GL11.glNewList(gear3, GL11.GL_COMPILE);
		GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, blue);
		gear(1.3f, 2.0f, 0.5f, 10, 0.7f);
		GL11.glEndList();

		GL11.glEnable(GL11.GL_NORMALIZE);

		GL11.glMatrixMode(GL11.GL_PROJECTION);

		System.err.println("GL_VENDOR: " + GL11.glGetString(GL11.GL_VENDOR));
		System.err.println("GL_RENDERER: " + GL11.glGetString(GL11.GL_RENDERER));
		System.err.println("GL_VERSION: " + GL11.glGetString(GL11.GL_VERSION));
		System.err.println();
		System.err.println("glLoadTransposeMatrixfARB() supported: " + GLContext.getCapabilities().GL_ARB_transpose_matrix);
		if (!GLContext.getCapabilities().GL_ARB_transpose_matrix) {
			// --- not using extensions
			GL11.glLoadIdentity();
		} else {
			// --- using extensions
			final FloatBuffer identityTranspose = BufferUtils.createFloatBuffer(16).put(
																																									new float[] { 1, 0, 0, 0, 0, 1, 0, 0,
																																											0, 0, 1, 0, 0, 0, 0, 1});
			identityTranspose.flip();
			ARBTransposeMatrix.glLoadTransposeMatrixARB(identityTranspose);
		}

		float h = (float) 300 / (float) 300;
		GL11.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
		GL11.glMatrixMode(GL11.GL_MODELVIEW);
		GL11.glLoadIdentity();
		GL11.glTranslatef(0.0f, 0.0f, -40.0f);		
	}
	
	/**
	 * Draw a gear wheel.  You'll probably want to call this function when
	 * building a display list since we do a lot of trig here.
	 *
	 * @param inner_radius radius of hole at center
	 * @param outer_radius radius at center of teeth
	 * @param width width of gear
	 * @param teeth number of teeth
	 * @param tooth_depth depth of tooth
	 */
	private void gear(float inner_radius, float outer_radius, float width, int teeth, float tooth_depth) {
		int i;
		float r0, r1, r2;
		float angle, da;
		float u, v, len;

		r0 = inner_radius;
		r1 = outer_radius - tooth_depth / 2.0f;
		r2 = outer_radius + tooth_depth / 2.0f;

		da = 2.0f * (float) Math.PI / teeth / 4.0f;

		GL11.glShadeModel(GL11.GL_FLAT);

		GL11.glNormal3f(0.0f, 0.0f, 1.0f);

		/* draw front face */
		GL11.glBegin(GL11.GL_QUAD_STRIP);
		for (i = 0; i <= teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
			if (i < teeth) {
				GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
				GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da),
												width * 0.5f);
			}
		}
		GL11.glEnd();

		/* draw front sides of teeth */
		GL11.glBegin(GL11.GL_QUADS);
		for (i = 0; i < teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + 2.0f * da), r2 * (float) Math.sin(angle + 2.0f * da), width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da), width * 0.5f);
		}
		GL11.glEnd();

		/* draw back face */
		GL11.glBegin(GL11.GL_QUAD_STRIP);
		for (i = 0; i <= teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
			GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
			GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
		}
		GL11.glEnd();

		/* draw back sides of teeth */
		GL11.glBegin(GL11.GL_QUADS);
		for (i = 0; i < teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
		}
		GL11.glEnd();

		/* draw outward faces of teeth */
		GL11.glBegin(GL11.GL_QUAD_STRIP);
		for (i = 0; i < teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
			u = r2 * (float) Math.cos(angle + da) - r1 * (float) Math.cos(angle);
			v = r2 * (float) Math.sin(angle + da) - r1 * (float) Math.sin(angle);
			len = (float) Math.sqrt(u * u + v * v);
			u /= len;
			v /= len;
			GL11.glNormal3f(v, -u, 0.0f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
			GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), width * 0.5f);
			GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
			u = r1 * (float) Math.cos(angle + 3 * da) - r2 * (float) Math.cos(angle + 2 * da);
			v = r1 * (float) Math.sin(angle + 3 * da) - r2 * (float) Math.sin(angle + 2 * da);
			GL11.glNormal3f(v, -u, 0.0f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), width * 0.5f);
			GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
			GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
		}
		GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), width * 0.5f);
		GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), -width * 0.5f);
		GL11.glEnd();

		GL11.glShadeModel(GL11.GL_SMOOTH);

		/* draw inside radius cylinder */
		GL11.glBegin(GL11.GL_QUAD_STRIP);
		for (i = 0; i <= teeth; i++) {
			angle = i * 2.0f * (float) Math.PI / teeth;
			GL11.glNormal3f(-(float) Math.cos(angle), -(float) Math.sin(angle), 0.0f);
			GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
			GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
		}
		GL11.glEnd();
	}	

	public static void main(String[] args) throws LWJGLException {
		new AWTGears();
	}
}