Android Open Source - diploma-assignment Clean Background

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License

The source code is released under:

MIT License

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Java Source Code

package com.me.battlescreen;
/*  www  . ja v  a 2 s.c o  m*/

import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.scenes.scene2d.Actor;


public class CleanBackground extends Actor {
  
  private int backWidth;
  private Texture backGround;
  private BattleScreen screen;
  private int startX;
  private int newX;
  private int currX;
  
  public CleanBackground(Texture t,BattleScreen s) {
    backGround=t;
    screen=s;
  }
  
  private void activateBitmap() {
    // TODO Auto-generated method stub
    Constants.WIDTH_CONST=(int) backGround.getWidth();
    Constants.HEIGHT_CONST=(int) backGround.getHeight();
    Constants.BACKWIDTH=backWidth;
    Constants.WIDTH_SCALE=backGround.getWidth()/ (float) (backWidth);
    Constants.HEIGHT_SCALE=Constants.HEIGHT_CONST/ (float) (this.getHeight());
  }

  private void calculateWidth(){
      backWidth=(int) (this.getHeight()*((double)backGround.getWidth()/
          backGround.getHeight()));
      this.setWidth(backWidth);
  }
  
  public void restart(){
    currX=0;
    this.setX(0);
    calculateWidth();
    activateBitmap();
  }

  public void startDrag(float rawX) {
    // TODO Auto-generated method stub
    startX=currX+(int)rawX;
  }

  public void endDrag() {
    // TODO Auto-generated method stub
    startX=-1;
  }

  public void drag(float rawX) {
    // TODO Auto-generated method stub
    
    int x=((int) rawX+currX) - startX;
      newX-=x;
      startX=((int) rawX+newX);
      if(newX<0)
        newX=0;
      else if (newX+screen.getWidth()>backWidth)
        newX=(int) (backWidth-screen.getWidth());
    currX=newX;
  }
  
  @Override
  public void draw(Batch batch,float parentAlpha){
    batch.draw(backGround,this.getX()-(int)currX,
        this.getY(),backWidth,this.getHeight());
  }

  public int getCoordsX() {
    return currX;
  }
}

Java Source Code List