Android Open Source - SpaceGame Asteroids

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Back to project page SpaceGame.

License

The source code is released under:

Copyright (c) 2012 ??ukasz Patalas Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the So...

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Java Source Code

package com.lpatalas.spacegame;
/*from   w  w w.  ja  va  2s . co m*/
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Rectangle;

import java.util.ArrayList;
import java.util.List;

/**
 * User: Lukasz
 * Date: 11.08.12
 */
class Asteroids {
  private static final int INITIAL_ASTEROID_COUNT = 5;
  private static final float NEW_ASTEROID_INTERVAL = 5.0f;

  private final List<Asteroid> asteroids = new ArrayList<Asteroid>();
  private final Texture texture;
  private float timeToNextAsteroid = NEW_ASTEROID_INTERVAL;

  public Asteroids(Texture texture) {
    this.texture = texture;
  }

  public void reset() {
    asteroids.clear();

    for (int i = 0; i < INITIAL_ASTEROID_COUNT; i++) {
      addNewAsteroid();
    }

    timeToNextAsteroid = NEW_ASTEROID_INTERVAL;
  }

  public boolean collideWith(Rectangle testedBounds) {
    for (Asteroid asteroid : asteroids) {
      if (asteroid.collidesWith(testedBounds))
        return true;
    }

    return false;
  }

  public void update(float deltaTime) {
    updateAsteroidCount(deltaTime);

    for (Asteroid asteroid : asteroids) {
      asteroid.update(deltaTime);
    }
  }

  private void updateAsteroidCount(float deltaTime) {
    timeToNextAsteroid -= deltaTime;
    if (timeToNextAsteroid <= 0) {
      timeToNextAsteroid = Asteroids.NEW_ASTEROID_INTERVAL;
      addNewAsteroid();
    }
  }

  private void addNewAsteroid() {
    Asteroid asteroid = new Asteroid(texture);
    asteroids.add(asteroid);
  }

  public void render(SpriteBatch spriteBatch) {
    for (Asteroid asteroid : asteroids) {
      asteroid.render(spriteBatch);
    }
  }
}

Java Source Code List