lwjgl/src/java/org/lwjgl/test/input/KeyboardTest.java

/*
 * Copyright (c) 2002 Lightweight Java Game Library Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'Lightweight Java Game Library' nor the names of
 *   its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.lwjgl.test.input;

import org.lwjgl.DisplayMode;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.GL;
import org.lwjgl.opengl.Window;
import org.lwjgl.opengl.GLU;
import org.lwjgl.vector.Vector2f;

/**
 * $Id$
 * <br>
 * Keyboard test
 *
 * @author Brian Matzon <brian@matzon.dk>
 * @version $Revision$
 */
public class KeyboardTest {

  /** GLU instance */
  private GLU glu;

  /** position of quad to draw */
  private Vector2f position = new Vector2f(320.0f, 240.0f);
  
  /** Display mode selected */
  private DisplayMode displayMode;
  
  private boolean bufferedKeyboard;
  private boolean translatedKeyboard;
  private int bufferSize;

  /** Creates a new instance of MouseTest */
  public KeyboardTest() {
  }

  private void initialize() {
    // create display and opengl
    setupDisplay(false);

    try {
      Keyboard.create();
    } catch (Exception e) {
      e.printStackTrace();
      System.exit(-1);
    }
  }
  
  private void setupDisplay(boolean fullscreen) {
    try {
      Window.create("KeyboardTest", 50, 50, 640, 480, 16, 0, 0, 0);
    } catch (Exception e) {
      e.printStackTrace();
      System.exit(-1);
    }

    initializeOpenGL();    
  }

  private void initializeOpenGL() {
    GL.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    GLU.gluOrtho2D(0.0, 640, 0, 480);
  }

  public void executeTest() {
    initialize();

    createKeyboard();

    wiggleKeyboard();

    Keyboard.destroy();
    Window.destroy();
  }

  private void createKeyboard() {
    try {
      Keyboard.create();
    } catch (Exception e) {
      e.printStackTrace();
      System.exit(-1);
    }
  }

  private void wiggleKeyboard() {
    Keyboard.enableBuffer();
    Keyboard.enableTranslation();

    while (!Window.isCloseRequested()) {
      Window.tick();
      
      if(Window.isMinimized()) {
        try {
          Thread.sleep(100);
        } catch (InterruptedException inte) {
          inte.printStackTrace();
        }
        continue;
      }

      //check keys, buffered
      Keyboard.read();

      int count = Keyboard.getNumKeyboardEvents();
      System.out.println("Read " + count + " events");
      while(Keyboard.next()) {
        System.out.println("Checking key:" + Keyboard.getKeyName(Keyboard.key));
        if(Keyboard.key == Keyboard.KEY_ESCAPE) {
          return;
        }

        if (Keyboard.isKeyDown(Keyboard.KEY_RIGHT)) {
          position.x += 1;
        }
        
        if (Keyboard.key == Keyboard.KEY_RIGHT) {
          position.x += 1;
        }
        
        if (Keyboard.isKeyDown(Keyboard.KEY_LEFT)) {
          position.x -= 1;
        }
      
        if (Keyboard.isKeyDown(Keyboard.KEY_UP)) {
          position.y += 1;
        }
      
        if (Keyboard.isKeyDown(Keyboard.KEY_DOWN)) {
          position.y -= 1;
        }
        
      }
      if (count > 0) {
        System.out.println();
      }
      
      if(position.x<0) {
        position.x = 0;
      } else if (position.x>640-60) {
        position.x = 640-60;
      }
      
      if(position.y < 0) {
        position.y = 0;
      } else if (position.y>480-30) {
        position.y = 480-30;
      }
      

      render();

      Window.paint();
      
      try {
        Thread.sleep(0);
      } catch (Exception e) {
      }
    }
  }
  
  private void render() {
    GL.glClear(GL.GL_COLOR_BUFFER_BIT);

    GL.glBegin(GL.GL_POLYGON);
    {
      float color = 1.0f;
      int buttonDown = 0;
      GL.glColor3f(color, color, color);
      
      GL.glVertex2f(position.x + 0.0f, position.y + 0.0f);
      GL.glVertex2f(position.x + 0.0f, position.y + 30.0f);
      GL.glVertex2f(position.x + 40.0f, position.y + 30.0f);
      GL.glVertex2f(position.x + 60.0f, position.y + 15.f);
      GL.glVertex2f(position.x + 40.0f, position.y + 0.0f);
    }
    GL.glEnd();
  }

  /**
   * @param args the command line arguments
   */
  public static void main(String[] args) {
    KeyboardTest kt = new KeyboardTest();
    kt.executeTest();
  }
}