Android Open Source - spacegunner Game Model Impl

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Back to project page spacegunner.

License

The source code is released under:

MIT License

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Java Source Code

package com.example.spacegunner.game;
//  w w w  . ja v  a2  s.  c  o m
public class GameModelImpl implements GameModel {

  private static final int FIRST_LEVEL = 1;
  private static final int INCREASE_POINTS_BY = 100;
  private static final int SHIP_MULTIPLIER = 10;
  private static final int SECONDS_PER_LEVEL = 60;
  private static final int MAXIMUM_TIME_SHOWN = 2000;
  private int level;
  private int points;
  private final int pointsAtLevelStart;
  private int shipsToDestroy;
  private int shipsDestroyed;
  private int time;

  /**
   * The game model representation.
   * 
   * @param points
   * @param level
   */
  public GameModelImpl(final int level, final int points) {
    super();
    this.level = level;
    this.points = points;
    this.pointsAtLevelStart = points;
    this.shipsDestroyed = 0;
    this.shipsToDestroy = 0;
    this.time = 0;
  }

  /**
   * Called whenever a ship is destroyed.
   */
  @Override
  public void shipDestroyed() {
    this.shipsDestroyed++;
    this.points += INCREASE_POINTS_BY;
  }

  /**
   * Count down the time.
   */
  @Override
  public void countdownTime() {
    this.time--;
  }

  /**
   * Start the next level.
   */
  @Override
  public void startNextLevel() {
    this.level++;
    this.shipsToDestroy = this.level * SHIP_MULTIPLIER;
    this.shipsDestroyed = 0;
    this.time = SECONDS_PER_LEVEL;
  }

  /**
   * @return whether the current level is finished
   */
  @Override
  public boolean isLevelFinished() {
    return getShipsDestroyed() >= getShipsToDestroy();
  }

  /**
   * @return whether the current game is over
   */
  @Override
  public boolean isGameOver() {
    return getTime() == 0 && getShipsDestroyed() < getShipsToDestroy();
  }

  /**
   * @return the level
   */
  @Override
  public int getLevel() {
    return level;
  }

  @Override
  public int getPointsAtLevelStart() {
    return pointsAtLevelStart;
  }

  /**
   * @return the points
   */
  @Override
  public int getPoints() {
    return points;
  }

  /**
   * @return the shipsToDisplay
   */
  @Override
  public int getShipsToDestroy() {
    return shipsToDestroy;
  }

  /**
   * @return the shipsDestroyed
   */
  @Override
  public int getShipsDestroyed() {
    return shipsDestroyed;
  }

  /**
   * @return the secondsToPlay
   */
  @Override
  public int getTime() {
    return time;
  }

  @Override
  public int getSecondsPerLevel() {
    return SECONDS_PER_LEVEL;
  }

  @Override
  public int getMaximumTimeShown() {
    return MAXIMUM_TIME_SHOWN;
  }

  @Override
  public int getFirstLevel() {
    return FIRST_LEVEL;
  }
  
  @Override
  public int getSpeedModifier() {
    return this.level;
  }

  @Override
  public String toString() {
    return "GameModel [level=" + level + ", points=" + points
        + ", shipsDestroyed=" + shipsDestroyed + ", shipsToDestroy="
        + shipsToDestroy + ", time=" + time + "]";
  }

}

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