Android Open Source - Castle-Invaders Scrollable Element

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.noobygames.utils.ui;
/*from  ww  w.  ja v  a  2s. c  om*/
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.math.Rectangle;

/**
 * A ScrollableElement inhabits an array of elements, which is scrollable (wow)
 * It inhabits also a slider, which is able to move within the borders of this
 * element
 * 
 * @author Nerzal
 * @extends Table
 * @implements InputProcessor
 **/
public class ScrollableElement extends Table implements InputProcessor {

  boolean isVertical;
  Slider slider;

  /**
   * @param position 
   *       The position of the element
   * @param tex
   *          The texture
   * @param isVertical
   *       Does it scroll verticaly?
   * @param sliderTex
   *       The slider's texture**/
  public ScrollableElement(Rectangle position, Texture tex,
      boolean isVertical, Texture sliderTex) {
    super(position, tex);
    this.isVertical = isVertical;
    if (isVertical)
      this.slider = new Slider(new Rectangle(this.getPosition().x + this.getPosition().width - this.getPosition().width / 20,
                    this.getPosition().y + this.getPosition().height - this.getPosition().height / this.elements.size,
                    this.getPosition().width / 20,
                    this.getPosition().height / this.elements.size), 
              position, tex, isVertical);
    else
      this.slider = new Slider(new Rectangle(this.getPosition().x + this.getPosition().width - this.getPosition().width / this.elements.size,
                    this.getPosition().y + this.getPosition().height - this.getPosition().height / 20,
                    this.getPosition().width / this.elements.size,
                    this.getPosition().height / 20), 
              position, tex, isVertical);

  }

  public void drawIt() {
    //this.draw();

  }

  @Override
  public boolean keyDown(int keycode) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean keyUp(int keycode) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean keyTyped(char character) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean touchDown(int screenX, int screenY, int pointer, int button) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean touchUp(int screenX, int screenY, int pointer, int button) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean touchDragged(int screenX, int screenY, int pointer) {
    if (isVertical) {
      this.slider.scroll(screenY);
      return true;
    } else {
      this.slider.scroll(screenX);
      return true;
    }
  }

  @Override
  public boolean mouseMoved(int screenX, int screenY) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean scrolled(int amount) {
    // TODO Auto-generated method stub
    return false;
  }

}

Java Source Code List