Android Open Source - diploma-assignment Floating Background

From Project

Back to project page diploma-assignment.

License

The source code is released under:

MIT License

If you think the Android project diploma-assignment listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.me.openingscreen;
//  w w w  .  j a  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;
import com.me.battlescreen.Constants;


public class FloatingBackground extends Actor {
  
  private int backWidth;
  private Texture background;
  private float currX;
  private OpeningScreen screen;
  private boolean forth;
  private float OFFSET;
  
  public FloatingBackground(OpeningScreen s,Texture t) {
    background = t;
    screen=s;
    forth=true;
  }
  
  private void activateBitmap() {
    Constants.BACKWIDTH=backWidth;
    Constants.WIDTH_SCALE=background.getWidth()/ (float) (backWidth);
    Constants.HEIGHT_SCALE=background.getHeight()/ (float) (this.getHeight());
    OFFSET=((float)backWidth)/(30*20);
  }

  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();
  }
  
  @Override
  public void draw(Batch batch,float parentAlpha){
    if((forth && currX+screen.getWidth()>backWidth) || (!forth && currX<0))
      forth=!forth;
    if(forth)
      currX+=OFFSET;
    else
      currX-=OFFSET;
    batch.draw(background,this.getX()-(int)currX,this.getY(),backWidth,this.getHeight());
  }
}

Java Source Code List