From a5d793729196423670fb4b9a7bb74d68b5682ce5 Mon Sep 17 00:00:00 2001
From: Alexey Fofonov <fofonovmath90@gmail.com>
Date: Thu, 19 Jan 2012 18:03:51 +0100
Subject: Adding Tennis Demo

---
 src/demos/tennis/Tennis.java | 920 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 920 insertions(+)
 create mode 100644 src/demos/tennis/Tennis.java

(limited to 'src/demos/tennis/Tennis.java')

diff --git a/src/demos/tennis/Tennis.java b/src/demos/tennis/Tennis.java
new file mode 100644
index 0000000..2460f90
--- /dev/null
+++ b/src/demos/tennis/Tennis.java
@@ -0,0 +1,920 @@
+package demos.tennis;
+
+import javax.media.opengl.GL2;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLEventListener;
+import javax.media.opengl.GLException;
+import javax.media.opengl.GLProfile;
+import javax.media.opengl.awt.GLCanvas;
+import com.jogamp.opengl.util.Animator;
+import com.jogamp.opengl.util.texture.Texture;
+import com.jogamp.opengl.util.texture.TextureCoords;
+import com.jogamp.opengl.util.texture.TextureIO;
+
+import javax.media.opengl.GL;
+//import javax.media.opengl.glu.GLU;
+import javax.swing.JOptionPane;
+
+//import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+//import java.io.File;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import com.jogamp.newt.Window;
+//import com.jogamp.newt.event.InputEvent;
+import com.jogamp.newt.event.KeyAdapter;
+import com.jogamp.newt.event.KeyEvent;
+import com.jogamp.newt.event.KeyListener;
+import com.jogamp.newt.event.MouseAdapter;
+import com.jogamp.newt.event.MouseEvent;
+import com.jogamp.newt.event.MouseListener;
+import com.jogamp.newt.event.awt.AWTKeyAdapter;
+import com.jogamp.newt.event.awt.AWTMouseAdapter;
+
+import java.awt.AWTException;
+import java.awt.Cursor;
+import java.awt.Image;
+import java.awt.MouseInfo;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import java.awt.image.BufferedImage;
+//import java.io.ByteArrayOutputStream;
+//import java.io.IOException;
+//import java.io.PrintStream;
+
+/**
+ * Tennis.java <BR>
+ * author: Fofonov Alexey <P>
+ */
+ 
+public class Tennis implements GLEventListener {
+  static {
+	GLProfile.initSingleton();
+  }
+  private float view_rotx = 0.0f, view_roty = 0.0f, view_rotz = 0.0f; 	//View angles
+  private float sx = 0.0f, sy = 0.0f;									//X, Y coords of Mydesk
+  private float spx,spy,spz;											//Speed of the ball
+  private float BallCx = 0.0f, BallCy = 0.0f, BallCz = 0.0f;			//Coords of the ball
+  private float EnDeskCx = 0.0f, EnDeskCy = 0.0f;						//X, Y coords of Endesk
+  private int   cube=0, mydesk=0, endesk=0, ball=0, box=0;				//Flags of the existence 
+  private int   swapInterval;
+  private static Texture[] texture;
+  private float Bax=0, Bay=0;											//Acceleration summands
+  private float Vec=3;													//Balls direction
+  private boolean CanF=false;											//Ready for play
+  
+  private int WindowW=0, WindowH=0;	
+  
+  private float LPositionDX=0, NPositionDX=0;							//Mouse positions 
+  private float LPositionDY=0, NPositionDY=0;							//
+  private float DspeedX=0, DspeedY=0;									//Speed of Mydesk
+
+  private boolean mouseButtonDown = false, control = true;
+  private int prevMouseX, prevMouseY;
+
+  public static void main(String[] args) {
+    // set argument 'NotFirstUIActionOnProcess' in the JNLP's application-desc tag for example
+    // <application-desc main-class="demos.j2d.TextCube"/>
+    //   <argument>NotFirstUIActionOnProcess</argument> 
+    // </application-desc>
+    // boolean firstUIActionOnProcess = 0==args.length || !args[0].equals("NotFirstUIActionOnProcess") ;
+
+    java.awt.Frame frame = new java.awt.Frame("Tennis Demo");
+    frame.setSize(640, 480);
+    frame.setLayout(new java.awt.BorderLayout());
+
+    final Animator animator = new Animator();
+    frame.addWindowListener(new java.awt.event.WindowAdapter() {
+        public void windowClosing(java.awt.event.WindowEvent e) {
+          // Run this on another thread than the AWT event queue to
+          // make sure the call to Animator.stop() completes before
+          // exiting
+          new Thread(new Runnable() {
+              public void run() {
+                animator.stop();
+                System.exit(0);
+              }
+            }).start();
+        }
+      });
+
+    GLCanvas canvas = new GLCanvas();
+    animator.add(canvas);
+    // GLCapabilities caps = new GLCapabilities(GLProfile.getDefault());
+    // GLCanvas canvas = new GLCanvas(caps);
+
+    final Tennis tennis = new Tennis();
+    canvas.addGLEventListener(tennis);
+
+    frame.add(canvas, java.awt.BorderLayout.CENTER);
+    frame.validate();
+    
+    //Hide the mouse cursor
+    Toolkit t = Toolkit.getDefaultToolkit();
+    Image i = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
+    Cursor noCursor = t.createCustomCursor(i, new Point(0, 0), "none");
+    frame.setCursor(noCursor);
+
+    frame.setVisible(true);
+    animator.start();
+  }
+  
+  public Tennis(int swapInterval) {
+	this.swapInterval = swapInterval;
+  }
+
+  public Tennis() {
+	this.swapInterval = 1;
+  }
+
+  public void init(GLAutoDrawable drawable) {
+	System.err.println("Tennis: Init: "+drawable);
+	// Use debug pipeline
+	// drawable.setGL(new DebugGL(drawable.getGL()));
+
+	GL2 gl = drawable.getGL().getGL2();
+
+    System.err.println("Chosen GLCapabilities: " + drawable.getChosenGLCapabilities());
+    System.err.println("INIT GL IS: " + gl.getClass().getName());
+    System.err.println("GL_VENDOR: " + gl.glGetString(GL2.GL_VENDOR));
+    System.err.println("GL_RENDERER: " + gl.glGetString(GL2.GL_RENDERER));
+    System.err.println("GL_VERSION: " + gl.glGetString(GL2.GL_VERSION));
+
+    float mat_specular[] =
+        { 1.0f, 1.0f, 1.0f, 1.0f };
+    float mat_shininess[] =
+        { 25.0f };
+    float light_position[] =
+        { 1.0f, 1.0f, 1.0f, 0.0f };
+        
+    float red[] = { 0.8f, 0.1f, 0.0f, 0.7f };
+    float yellow[] = { 0.8f, 0.75f, 0.0f, 0.7f };
+    float blue[] = { 0.2f, 0.2f, 1.0f, 0.7f };
+    float brown[] = { 0.8f, 0.4f, 0.1f, 0.7f };
+    
+    texture = new Texture[5];
+    
+    //Load textures
+    try {
+        System.err.println("Loading texture...");
+        texture[0] = TextureIO.newTexture(getClass().getClassLoader().getResourceAsStream("demos/data/images/TennisTop.png"),
+                false,
+                TextureIO.PNG);
+        texture[1] = TextureIO.newTexture(getClass().getClassLoader().getResourceAsStream("demos/data/images/TennisBottom.png"),
+        		false,
+                TextureIO.PNG);
+        texture[2] = TextureIO.newTexture(getClass().getClassLoader().getResourceAsStream("demos/data/images/TennisMyDesk.png"),
+        		false,
+                TextureIO.PNG);
+        texture[3] = TextureIO.newTexture(getClass().getClassLoader().getResourceAsStream("demos/data/images/TennisEnDesk.png"),
+        		false,
+                TextureIO.PNG);
+        texture[4] = TextureIO.newTexture(getClass().getClassLoader().getResourceAsStream("demos/data/images/Stars.png"),
+        		false,
+                TextureIO.PNG);
+        System.err.println("Texture0 estimated memory size = " + texture[0].getEstimatedMemorySize());
+        System.err.println("Texture1 estimated memory size = " + texture[1].getEstimatedMemorySize());
+        System.err.println("Texture2 estimated memory size = " + texture[2].getEstimatedMemorySize());
+        System.err.println("Texture3 estimated memory size = " + texture[3].getEstimatedMemorySize());
+        System.err.println("Stars estimated memory size = " + texture[4].getEstimatedMemorySize());
+      } catch (IOException e) {
+        e.printStackTrace();
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        e.printStackTrace(new PrintStream(bos));
+        JOptionPane.showMessageDialog(null,
+                                      bos.toString(),
+                                      "Error loading texture",
+                                      JOptionPane.ERROR_MESSAGE);
+        throw new GLException(e);
+        //return;
+      }
+
+    gl.glShadeModel(GL2.GL_SMOOTH);              	// Enable Smooth Shading
+    gl.glClearDepth(1.0f);                      	// Depth Buffer Setup
+    gl.glEnable(GL2.GL_DEPTH_TEST);             	// Enables Depth Testing
+    gl.glDepthFunc(GL2.GL_LEQUAL);               	// The Type Of Depth Testing To Do
+    
+    // Really Nice Perspective Calculations
+    gl.glHint(GL2.GL_PERSPECTIVE_CORRECTION_HINT, GL2.GL_NICEST);  
+    gl.glEnable(GL2.GL_TEXTURE_2D);
+    
+    // Texture filter
+    gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MAG_FILTER, GL2.GL_NONE);
+    gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MIN_FILTER, GL2.GL_NONE);
+    
+    // Light and material
+    gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_SPECULAR, mat_specular, 0);  
+    gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_SHININESS, mat_shininess, 0);
+    gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_POSITION, light_position, 0);
+    gl.glEnable(GL2.GL_LIGHTING);
+    gl.glEnable(GL2.GL_LIGHT0);
+ 
+	            
+    /* make the objects */
+    if(0>=cube) {
+        cube = gl.glGenLists(1);
+        gl.glNewList(cube, GL2.GL_COMPILE);
+        gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, brown, 0);
+        cube(gl);
+        gl.glEndList();
+        System.err.println("cube list created: "+cube);
+    } else {
+        System.err.println("cube list reused: "+cube);
+    }
+    
+    if(0>=box) {
+    	box = gl.glGenLists(1);
+        gl.glNewList(box, GL2.GL_COMPILE);
+        gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, brown, 0);
+        box(gl);
+        gl.glEndList();
+        System.err.println("box list created: "+box);
+    } else {
+        System.err.println("box list reused: "+box);
+    }
+	            
+    if(0>=mydesk) {
+    	mydesk = gl.glGenLists(1);
+        gl.glNewList(mydesk, GL2.GL_COMPILE);
+        gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, red, 0);
+        desk(gl, 2);
+        gl.glEndList();
+        System.err.println("mydesk list created: "+mydesk);
+    } else {
+        System.err.println("mydesk list reused: "+mydesk);
+    }
+	            
+    if(0>=endesk) {
+    	endesk = gl.glGenLists(1);
+        gl.glNewList(endesk, GL2.GL_COMPILE);
+        gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, blue, 0);
+        desk(gl, 3);
+        gl.glEndList();
+        System.err.println("endesk list created: "+endesk);
+    } else {
+        System.err.println("endesk list reused: "+endesk);
+    }
+    
+    if(0>=ball) {
+    	ball = gl.glGenLists(1);
+        gl.glNewList(ball, GL2.GL_COMPILE);
+        gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, yellow, 0);
+        ball(gl);
+        gl.glEndList();
+        System.err.println("ball list created: "+ball);
+    } else {
+        System.err.println("ball list reused: "+ball);
+    }
+	            
+    gl.glEnable(GL2.GL_NORMALIZE);
+	                
+    MouseListener tennisMouse = new TennisMouseAdapter();    
+    KeyListener tennisKeys = new TennisKeyAdapter();
+
+    if (drawable instanceof Window) {
+        Window window = (Window) drawable;
+        window.addMouseListener(tennisMouse);
+        window.addKeyListener(tennisKeys);
+    } else if (GLProfile.isAWTAvailable() && drawable instanceof java.awt.Component) {
+        java.awt.Component comp = (java.awt.Component) drawable;
+        new AWTMouseAdapter(tennisMouse).addTo(comp);
+        new AWTKeyAdapter(tennisKeys).addTo(comp);
+    }		
+  }
+
+  public void dispose(GLAutoDrawable drawable) {
+	System.err.println("Tennis: Dispose");
+  }
+
+  public void display(GLAutoDrawable drawable) {
+
+    // Get the GL corresponding to the drawable we are animating
+    GL2 gl = drawable.getGL().getGL2();
+    
+    if (mouseButtonDown == false && control == true)
+    MovMydesk();
+    MoveSphere();
+    MoveEnDesk();
+
+    gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+
+    // Special handling for the case where the GLJPanel is translucent
+    // and wants to be composited with other Java 2D content
+    if (GLProfile.isAWTAvailable() && 
+        (drawable instanceof javax.media.opengl.awt.GLJPanel) &&
+        !((javax.media.opengl.awt.GLJPanel) drawable).isOpaque() &&
+        ((javax.media.opengl.awt.GLJPanel) drawable).shouldPreserveColorBufferIfTranslucent()) {
+      gl.glClear(GL2.GL_DEPTH_BUFFER_BIT);
+    } else {
+      gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
+    }
+    
+ // Place the box and call its display list
+    gl.glDisable(GL2.GL_DEPTH_TEST);
+    gl.glCallList(box);
+    gl.glEnable(GL2.GL_DEPTH_TEST);
+	            
+    // Rotate the entire assembly of tennis based on how the user
+    // dragged the mouse around
+    gl.glPushMatrix();
+    gl.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
+    gl.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
+    gl.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);
+            
+    // Place the cube and call its display list
+    gl.glPushMatrix();
+    gl.glTranslatef(0.0f, 0.0f, 0.0f);
+    gl.glRotatef(0.0f, 0.0f, 0.0f, 1.0f);
+    gl.glCallList(cube);
+    gl.glPopMatrix();
+	            
+    // Place the mydesk and call its display list
+    gl.glPushMatrix();
+    gl.glTranslatef(sx, sy, 3.0f);
+    gl.glRotatef(0.0f, 0.0f, 0.0f, 1.0f);
+    gl.glCallList(mydesk);
+    gl.glPopMatrix();
+            
+    // Place the endesk and call its display list
+    gl.glPushMatrix();
+    gl.glTranslatef(EnDeskCx, EnDeskCy, -3.0f);
+    gl.glRotatef(0.0f, 0.0f, 0.0f, 1.0f);
+    gl.glCallList(endesk);
+    gl.glPopMatrix();
+    
+    // Place the ball and call its display list
+    gl.glPushMatrix();
+    gl.glTranslatef(BallCx, BallCy, BallCz);
+    gl.glRotatef(0.0f, 0.0f, 0.0f, 1.0f);
+    gl.glCallList(ball);
+    gl.glPopMatrix();
+	            
+    // Remember that every push needs a pop; this one is paired with
+    // rotating the entire tennis assembly
+    gl.glPopMatrix();
+  }
+
+  public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) 
+  {
+	  
+	System.err.println("Gears: Reshape "+x+"/"+y+" "+width+"x"+height);
+	GL2 gl = drawable.getGL().getGL2();
+
+	gl.setSwapInterval(swapInterval);
+
+	float h = (float)height / (float)width;
+	
+	WindowW = width;
+	WindowH = height;
+	            
+	gl.glMatrixMode(GL2.GL_PROJECTION);
+
+	gl.glLoadIdentity();
+	
+	if (h<1)
+		gl.glFrustum(-1.0f, 1.0f, -h, h, 1.0f, 60.0f);
+	else
+	{
+		h = 1.0f/h;
+		gl.glFrustum(-h, h, -1.0f, 1.0f, 1.0f, 60.0f);
+	}
+	
+	gl.glMatrixMode(GL2.GL_MODELVIEW);
+	gl.glLoadIdentity();
+	gl.glTranslatef(0.0f, 0.0f, -6.0f);
+	
+  }
+  
+  public static void cube(GL2 gl)
+  {
+
+	gl.glShadeModel(GL2.GL_FLAT);
+
+	/* draw left sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(1.0f, 0.0f, 0.0f);
+		gl.glVertex3f(-2.0f, -1.5f, -3.0f);
+		gl.glVertex3f(-2.0f,  1.5f, -3.0f);
+		gl.glVertex3f(-2.0f,  1.5f,  3.0f);
+		gl.glVertex3f(-2.0f, -1.5f,  3.0f);
+		
+		gl.glNormal3f(-1.0f, 0.0f, 0.0f);
+		gl.glVertex3f(-2.05f, -1.55f, -3.0f);
+		gl.glVertex3f(-2.05f,  1.55f, -3.0f);
+		gl.glVertex3f(-2.05f,  1.55f,  3.0f);
+		gl.glVertex3f(-2.05f, -1.55f,  3.0f);
+
+	gl.glEnd();
+	
+	if (texture[0] != null) {
+	      texture[0].enable(gl);
+	      texture[0].bind(gl);
+	      gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
+	      TextureCoords coords = texture[0].getImageTexCoords();
+	
+	/* draw up sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, -1.0f, 0.0f);
+		gl.glTexCoord2f(coords.left(), coords.top());
+		gl.glVertex3f(-2.0f, 1.5f, -3.0f);
+		gl.glTexCoord2f(coords.left(), coords.bottom());
+		gl.glVertex3f(-2.0f, 1.5f,  3.0f);
+		gl.glTexCoord2f(coords.right(), coords.bottom());
+		gl.glVertex3f( 2.0f, 1.5f,  3.0f);
+		gl.glTexCoord2f(coords.right(), coords.top());
+		gl.glVertex3f( 2.0f, 1.5f, -3.0f);
+		
+	gl.glEnd();
+	
+		texture[0].disable(gl);
+	}	
+		
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, 1.0f, 0.0f);
+		gl.glVertex3f(-2.05f, 1.55f, -3.0f);
+		gl.glVertex3f(-2.05f, 1.55f,  3.0f);
+		gl.glVertex3f( 2.05f, 1.55f,  3.0f);
+		gl.glVertex3f( 2.05f, 1.55f, -3.0f);
+
+	gl.glEnd();
+	
+	/* draw right sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(-1.0f, 0.0f, 0.0f);
+		gl.glVertex3f(2.0f, -1.5f, -3.0f);
+		gl.glVertex3f(2.0f,  1.5f, -3.0f);
+		gl.glVertex3f(2.0f,  1.5f,  3.0f);
+		gl.glVertex3f(2.0f, -1.5f,  3.0f);
+		
+		gl.glNormal3f(1.0f, 0.0f, 0.0f);
+		gl.glVertex3f(2.05f, -1.55f, -3.0f);
+		gl.glVertex3f(2.05f,  1.55f, -3.0f);
+		gl.glVertex3f(2.05f,  1.55f,  3.0f);
+		gl.glVertex3f(2.05f, -1.55f,  3.0f);
+
+	gl.glEnd();
+	
+	if (texture[1] != null) {
+	      texture[1].enable(gl);
+	      texture[1].bind(gl);
+	      gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
+	      TextureCoords coords = texture[1].getImageTexCoords();
+	
+	/* draw down sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, 1.0f, 0.0f);
+		gl.glTexCoord2f(coords.left(), coords.top());
+		gl.glVertex3f(-2.0f, -1.5f, -3.0f);
+		gl.glTexCoord2f(coords.left(), coords.bottom());
+		gl.glVertex3f(-2.0f, -1.5f,  3.0f);
+		gl.glTexCoord2f(coords.right(), coords.bottom());
+		gl.glVertex3f( 2.0f, -1.5f,  3.0f);
+		gl.glTexCoord2f(coords.right(), coords.top());
+		gl.glVertex3f( 2.0f, -1.5f, -3.0f);
+		
+		gl.glNormal3f(0.0f, -1.0f, 0.0f);
+		gl.glVertex3f(-2.05f, -1.55f, -3.0f);
+		gl.glVertex3f(-2.05f, -1.55f,  3.0f);
+		gl.glVertex3f( 2.05f, -1.55f,  3.0f);
+		gl.glVertex3f( 2.05f, -1.55f, -3.0f);
+
+	gl.glEnd();
+	
+		texture[1].disable(gl);
+	}
+	
+	/* draw back sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, 0.0f, -1.0f);
+		
+		gl.glVertex3f(-2.05f, 1.55f, -3.0f);
+		gl.glVertex3f( 2.05f, 1.55f, -3.0f);
+		gl.glVertex3f( 2.0f, 1.5f, -3.0f);
+		gl.glVertex3f(-2.0f, 1.5f, -3.0f);
+		
+		gl.glVertex3f(-2.05f, -1.55f, -3.0f);
+		gl.glVertex3f( 2.05f, -1.55f, -3.0f);
+		gl.glVertex3f( 2.0f, -1.5f, -3.0f);
+		gl.glVertex3f(-2.0f, -1.5f, -3.0f);
+		
+		gl.glVertex3f(-2.05f, -1.55f, -3.0f);
+		gl.glVertex3f(-2.05f, 1.55f, -3.0f);
+		gl.glVertex3f(-2.0f, 1.5f, -3.0f);
+		gl.glVertex3f(-2.0f, -1.5f, -3.0f);
+		
+		gl.glVertex3f(2.05f, -1.55f, -3.0f);
+		gl.glVertex3f(2.05f, 1.55f, -3.0f);
+		gl.glVertex3f(2.0f, 1.5f, -3.0f);
+		gl.glVertex3f(2.0f, -1.5f, -3.0f);
+
+	gl.glEnd();
+	
+	/* draw front sides */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, 0.0f, 1.0f);
+		
+		gl.glVertex3f(-2.05f, 1.55f, 3.0f);
+		gl.glVertex3f( 2.05f, 1.55f, 3.0f);
+		gl.glVertex3f( 2.0f, 1.5f, 3.0f);
+		gl.glVertex3f(-2.0f, 1.5f, 3.0f);
+		
+		gl.glVertex3f(-2.05f, -1.55f, 3.0f);
+		gl.glVertex3f( 2.05f, -1.55f, 3.0f);
+		gl.glVertex3f( 2.0f, -1.5f, 3.0f);
+		gl.glVertex3f(-2.0f, -1.5f, 3.0f);
+		
+		gl.glVertex3f(-2.05f, -1.55f, 3.0f);
+		gl.glVertex3f(-2.05f, 1.55f, 3.0f);
+		gl.glVertex3f(-2.0f, 1.5f, 3.0f);
+		gl.glVertex3f(-2.0f, -1.5f, 3.0f);
+		
+		gl.glVertex3f(2.05f, -1.55f, 3.0f);
+		gl.glVertex3f(2.05f, 1.55f, 3.0f);
+		gl.glVertex3f(2.0f, 1.5f, 3.0f);
+		gl.glVertex3f(2.0f, -1.5f, 3.0f);
+
+	gl.glEnd();
+	 
+  }
+  
+  public static void box(GL2 gl)	//Usually "box" mean box, but there only one side is enough
+  {
+	  
+	gl.glShadeModel(GL2.GL_FLAT);
+	
+	if (texture[4] != null) {
+	      texture[4].enable(gl);
+	      texture[4].bind(gl);
+	      gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_S, GL2.GL_REPEAT);
+	      gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_T, GL2.GL_REPEAT);
+	      gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
+	
+	/* draw the side */
+	gl.glBegin(GL2.GL_QUADS);
+	
+		gl.glNormal3f(0.0f, 0.0f, 1.0f);
+		gl.glTexCoord2f(0, 0);
+		gl.glVertex3f(-8.0f, -8.0f, 0.0f);
+		gl.glTexCoord2f(0, 8.0f);
+		gl.glVertex3f(-8.0f, 8.0f,  0.0f);
+		gl.glTexCoord2f(8.0f, 8.0f);
+		gl.glVertex3f( 8.0f, 8.0f,  0.0f);
+		gl.glTexCoord2f(8.0f, 0);
+		gl.glVertex3f( 8.0f, -8.0f, 0.0f);
+
+	gl.glEnd();
+	
+		texture[4].disable(gl);
+	}
+	 
+  }
+  
+  public static void desk(GL2 gl, int two_or_three)
+  {
+	  
+	int i;
+	float temp1;
+
+	gl.glShadeModel(GL2.GL_FLAT);
+
+	if (texture[two_or_three] != null) {
+	      texture[two_or_three].enable(gl);
+	      texture[two_or_three].bind(gl);
+	      gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_S, GL2.GL_REPEAT);
+	      gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_T, GL2.GL_REPEAT);
+	      gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
+	
+	/* draw the front */
+	gl.glBegin(GL2.GL_QUAD_STRIP);
+	
+		gl.glNormal3f(0.0f, 0.0f, 1.0f);
+		for (i=0; i<25; i++)
+		{
+			temp1 = (float) Math.pow(Math.sin(i/24.0f*Math.PI), 0.4d);
+			 
+			gl.glTexCoord2f((i-12)/40.0f, temp1/4 + 0.75f);
+			gl.glVertex3f((i-12)/40.0f, temp1/10 + 0.1f , 0.01f + temp1/25);	
+			gl.glTexCoord2f((i-12)/40.0f, -temp1/4 + 0.25f);
+			gl.glVertex3f((i-12)/40.0f, -temp1/10 - 0.1f, 0.01f + temp1/25);	
+		}
+
+	gl.glEnd();
+	
+	/* draw the back */
+	gl.glBegin(GL2.GL_QUAD_STRIP);
+	
+		gl.glNormal3f(0.0f, 0.0f, -1.0f);
+		for (i=0; i<25; i++)
+		{
+			temp1 = (float) Math.pow(Math.sin(i/24.0f*Math.PI), 0.4d);
+			
+			gl.glTexCoord2f((i-12)/40.0f, temp1/4 + 0.75f);
+			gl.glVertex3f((i-12)/40.0f, temp1/10 + 0.1f , -0.01f - temp1/25);	
+			gl.glTexCoord2f((i-12)/40.0f, -temp1/4 + 0.25f);
+			gl.glVertex3f((i-12)/40.0f, -temp1/10 - 0.1f, -0.01f - temp1/25);	
+			
+		}
+
+	gl.glEnd();
+	
+	texture[2].disable(gl);
+	}
+	
+	/* draw the top side */
+	gl.glBegin(GL2.GL_QUAD_STRIP);
+	
+		gl.glNormal3f(0.0f, 1.0f, 0.0f);
+		for (i=0; i<25; i++)
+		{
+			temp1 = (float) Math.pow(Math.sin(i/24.0f*Math.PI), 0.4d);
+			
+			gl.glVertex3f((i-12)/40.0f, temp1/10 + 0.1f , -0.01f - temp1/25);					
+			gl.glVertex3f((i-12)/40.0f, temp1/10 + 0.1f , 0.01f + temp1/25);	
+		}
+		
+	gl.glEnd();
+		
+	/* draw the bottom side */
+	gl.glBegin(GL2.GL_QUAD_STRIP);
+			
+		gl.glNormal3f(0.0f, -1.0f, 0.0f);
+		for (i=0; i<25; i++)
+		{	
+			temp1 = (float) Math.pow(Math.sin(i/24.0f*Math.PI), 0.4d);
+			
+			gl.glVertex3f((i-12)/40.0f, -temp1/10 - 0.1f, 0.01f + temp1/25);			
+			gl.glVertex3f((i-12)/40.0f, -temp1/10 - 0.1f, -0.01f - temp1/25);	
+		}
+
+	gl.glEnd();
+	
+	/* draw the left and right sides */
+	gl.glBegin(GL2.GL_QUADS);
+			
+			gl.glNormal3f(-1.0f, 0.0f, 0.0f);
+			gl.glVertex3f((-12)/40.0f, -0.1f, 0.01f);
+			gl.glVertex3f((-12)/40.0f, +0.1f, 0.01f);			
+			gl.glVertex3f((-12)/40.0f, +0.1f, -0.01f);
+			gl.glVertex3f((-12)/40.0f, -0.1f, -0.01f);	
+			
+			gl.glNormal3f(1.0f, 0.0f, 0.0f);
+			gl.glVertex3f((+12)/40.0f, -0.1f, 0.01f);
+			gl.glVertex3f((+12)/40.0f, +0.1f, 0.01f);			
+			gl.glVertex3f((+12)/40.0f, +0.1f, -0.01f);
+			gl.glVertex3f((+12)/40.0f, -0.1f, -0.01f);			
+
+
+	gl.glEnd();
+	
+  }
+  
+  public static void ball(GL2 gl)
+  {
+	  
+	int i,j;
+	float y1,y2,r1,r2,x,z;
+
+	gl.glShadeModel(GL2.GL_FLAT);
+
+	/* draw the ball */
+	gl.glBegin(GL2.GL_QUAD_STRIP);
+	
+		for (i=0; i<20; i++)
+		{
+			y1 = (float) Math.cos((i)/20.0f*Math.PI)/10;
+			y2 = (float) Math.cos((i+1)/20.0f*Math.PI)/10;
+			r1 = (float) Math.sqrt(Math.abs(0.01f-y1*y1));
+			r2 = (float) Math.sqrt(Math.abs(0.01f-y2*y2));
+			
+			for (j=0; j<21; j++)
+			{
+				x = (float) (r1*Math.cos((float)j/21*2.0f*Math.PI));
+				z = (float) (r1*Math.sin((float)j/21*2.0f*Math.PI));
+				gl.glNormal3f(10*x, 10*y1, 10*z);
+				gl.glVertex3f(x, y1, z);
+				
+				x = (float) (r2*Math.cos((float)j/21*2.0f*Math.PI));
+				z = (float) (r2*Math.sin((float)j/21*2.0f*Math.PI));
+				gl.glNormal3f(10*x, 10*y2, 10*z);
+				gl.glVertex3f(x, y2, z);
+			}
+		}
+
+	gl.glEnd();
+	
+  }
+  
+  public void MoveSphere()
+  {
+	  
+	// Ball out
+
+		if ((BallCz>3)||(BallCz<-3))
+		{
+			
+			Vec=BallCz;
+			
+			BallCx = 0.0f;
+			BallCy = 0.0f;
+			BallCz = 0.0f;
+
+			spz=0;
+			spx=0;
+			spy=0;
+
+			CanF=false;
+			
+			Bax=0;
+			Bay=0;
+
+		}
+
+	// Ball rebound
+
+		if ((spz<0)&&(BallCz+spz<-2.8)&&(BallCx+spx<EnDeskCx+0.3)&&(BallCx+spx>EnDeskCx-0.3)&&(BallCy+spy<EnDeskCy+0.2)&&(BallCy+spy>EnDeskCy-0.2))
+		{
+		
+			spz=-spz+0.002f;
+			spx=spx+(BallCx-EnDeskCx)/10;
+			spy=spy+(BallCy-EnDeskCy)/10;	
+		
+		}
+
+		if ((spz>0)&&(BallCz+spz>2.8)&&(BallCx+spx<sx+0.3)&&(BallCx+spx>sx-0.3)&&(BallCy+spy<sy+0.2)&&(BallCy+spy>sy-0.2))
+		{
+			
+			spz=-spz-0.002f;
+			spx=spx+(BallCx-sx)/10;
+			spy=spy+(BallCy-sy)/10;
+			
+			Bax=DspeedX/100;
+			Bay=DspeedY/100;
+
+		}
+
+		if ((BallCx+spx<-1.9)||(BallCx+spx>1.9))
+		spx=-spx;
+
+		if ((BallCy+spy<-1.4)||(BallCy+spy>1.4))
+		spy=-spy;
+
+	// Ball acceleration
+
+		spx=spx+Bax;
+		spy=spy+Bay;
+
+	// Ball move
+
+	    if (CanF==true)
+	    	
+	    BallCx += spx;
+		BallCy += spy;
+		BallCz += spz;
+		
+	//Less the acceleration
+
+		Bax=Bax-Bax/100;
+		Bay=Bay-Bay/100;
+	  
+  }
+  
+  public void MoveEnDesk()
+  {
+
+	  //Just follow for the ball
+	  
+  float sx,sy;
+  double gip=Math.sqrt((BallCx-EnDeskCx)*(BallCx-EnDeskCx)+(BallCy-EnDeskCy)*(BallCy-EnDeskCy));
+
+  if (gip<0.07)
+  {
+  sx=Math.abs((BallCx-EnDeskCx));
+  sy=Math.abs((BallCy-EnDeskCy));
+  }
+  else
+  {
+  sx=Math.abs((BallCx-EnDeskCx))/((float) gip)*0.07f;
+  sy=Math.abs((BallCy-EnDeskCy))/((float) gip)*0.07f;
+  }
+
+  if ((BallCx-EnDeskCx>0)&&(EnDeskCx+sx<=1.7)) 
+	  EnDeskCx += sx;
+
+  if ((BallCx-EnDeskCx<0)&&(EnDeskCx-sx>=-1.7))
+	  EnDeskCx -= sx;
+
+  if ((BallCy-EnDeskCy>0)&&(EnDeskCy+sy<=1.3))
+	  EnDeskCy += sy;
+
+  if ((BallCy-EnDeskCy<0)&&(EnDeskCy-sy>=-1.3))
+	  EnDeskCy -= sy;
+
+  }
+  
+  public void MovMydesk() {
+ 	  
+	  LPositionDX = sx;
+	  LPositionDY = sy;
+	  
+	  int x = MouseInfo.getPointerInfo().getLocation().x; 
+      int y = MouseInfo.getPointerInfo().getLocation().y;
+
+      sx = sx + (float)(x-500.0f)/300.0f;
+      sy = sy + (float)(400.0f-y)/300.0f;  
+      
+      //Check cube borders
+      
+      if (sx<-1.7f || sx>1.7f)
+    	{ 
+    	  if (sx>0) sx = 1.7f;
+    	  else     sx = -1.7f;
+    	}
+      
+      if (sy<-1.3 || sy>1.3)
+      	{ 
+    	  if (sy>0) sy = 1.3f;
+    	  else     sy = -1.3f;
+    	}
+    	
+      //Return the mouse back from screen borders
+    	try {
+          Robot r = new Robot();
+          r.mouseMove(500,400);
+    		} catch(AWTException ex) {}
+
+    	NPositionDX=sx;
+    	NPositionDY=sy;
+
+    	DspeedX=NPositionDX-LPositionDX;
+    	DspeedY=NPositionDY-LPositionDY;      
+      
+    }
+  
+  class TennisKeyAdapter extends KeyAdapter {      
+	    public void keyPressed(KeyEvent e) {
+	        int kc = e.getKeyCode();
+	        if(KeyEvent.VK_ESCAPE == kc) {
+	            System.exit(0);
+	        } 
+	        if(KeyEvent.VK_CONTROL == kc) {
+	            control = false;
+	        } 
+	        if(KeyEvent.VK_SPACE == kc) {		//Ready for play
+	        	if (CanF==false)
+	        	{	
+	        		if (Vec<0)
+	        			spz=-0.07f;			
+	        		else
+	        			spz=0.07f;
+	        	}
+	        	CanF=true;
+	    	}
+	    }
+	    
+	    public void keyReleased(KeyEvent e) {    //Give the mouse control to the user    
+	    	int kc = e.getKeyCode();
+	        if(KeyEvent.VK_CONTROL == kc) {
+	            control = true;
+	        } 	        
+	    }
+	    
+	  }
+	  
+  class TennisMouseAdapter extends MouseAdapter {
+      public void mousePressed(MouseEvent e) {
+        prevMouseX = e.getX();
+        prevMouseY = e.getY();
+        
+        mouseButtonDown = true;
+      }
+	        
+      public void mouseReleased(MouseEvent e) {
+          mouseButtonDown = false;
+      }
+	        
+      public void mouseDragged(MouseEvent e) {
+    	  
+        int x = e.getX();
+        int y = e.getY();
+        
+        float thetaY = 360.0f * ( (float)(x-prevMouseX)/(float)WindowW);
+        float thetaX = 360.0f * ( (float)(prevMouseY-y)/(float)WindowH);
+	        
+        prevMouseX = x;
+        prevMouseY = y;       
+        
+        view_rotx += thetaX;
+        view_roty += thetaY;
+      }
+  }
+  
+}
-- 
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