Android Open Source - ZombieBird Pipe

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License

The source code is released under:

Apache License

Java Source Code

package com.kilobolt.GameObjects;
//  w  ww.j ava  2  s  .c  o  m
import java.util.Random;

import com.badlogic.gdx.math.Rectangle;

public class Pipe extends Scrollable {
  
  private Random r;
  
  private Rectangle skullUp, skullDown, barUp, barDown;
  
  // Constants to represent 45-pixel gap between upper and lower pipe as well as skull info
  public static final int VERTICAL_GAP = 45;
  public static final int SKULL_WIDTH = 24;
  public static final int SKULL_HEIGHT = 11;
  
  private float groundY;  // finds out where the ground is
  
  public Pipe(float x, float y, int width, int height, float scrollSpeed, float groundY) {
    super(x, y, width, height, scrollSpeed);
    // Initialize a Random object for random number generation
    r = new Random();
    skullUp = new Rectangle();
    skullDown = new Rectangle();
    barUp = new Rectangle();
    barDown = new Rectangle();
    this.groundY = groundY;
  }
  
  @Override
  public void update(float delta) {
    // Call the superclass' method first to run that code
    super.update(delta);
    
    // the set() method allows the ability to set the top, left corner's x, y coordinates along with width/height of rectangle
    barUp.set(position.x, position.y, width, height);
    barDown.set(position.x, position.y + height + VERTICAL_GAP, width, groundY - (position.y + height + VERTICAL_GAP));
    
    // The skull width is 24.  The bar is only 22 pixels wide, so the skull needs to be shifted 1 pixel to the left to center it.
    // Shift is done by: (SKULL_WIDTH - width) / 2
    skullUp.set(position.x - (SKULL_WIDTH - width) / 2, position.y + height - SKULL_HEIGHT, SKULL_WIDTH, SKULL_HEIGHT);
    skullDown.set(position.x - (SKULL_WIDTH - width) / 2, barDown.y, SKULL_WIDTH, SKULL_HEIGHT);
  }
  
  @Override
  public void reset(float newX) {
    // Call the reset method in the superclass Scrollable
    super.reset(newX);
    // Change the height to a random number
    height = r.nextInt(90) + 15;
  }
  
  public Rectangle getSkullUp() {
    return skullUp;
  }
  
  public Rectangle getSkullDown() {
    return skullDown;
  }
  
  public Rectangle getBarUp() {
    return barUp;
  }
  
  public Rectangle getBarDown() {
    return barDown;
  }

}

Java Source Code List

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