Android Open Source - feup-lpoo-android-tower-defense Game Elements

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License

The source code is released under:

MIT License

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Java Source Code

package pt.up.fe.lpoo.towerdefense;
//  ww w.  java2  s.  c o m
import java.util.ArrayList;
import java.util.PriorityQueue;

/**
 * This class contains game objects to be used for a level as well as other game variables such as the score,
 *  money and number of lives left
 *  
 * @author Joao Marinheiro
 * @author Luis Cleto
 */
public class GameElements {
  /** current amount of money the user has */
  public int currentBalance;
  /** current amount of lives the user has left */
  public int livesLeft;
  /** current score the user has achieved */
  public int curScore; 
  /** array with the enemies in the level */
  public ArrayList<Enemy> enemies;
  /** array with the defenses in the level */
  public ArrayList<DefenseObject> defenses;
  /** array with the projectiles in the level */
  public ArrayList<Projectile> projectiles;
  
  /**
   * Constructor for the GameElemnts class. Initializes the game variables
   * @param chosenLevel level being played
   */
  public GameElements(int chosenLevel){
    enemies = new ArrayList<Enemy>();
    defenses = new ArrayList<DefenseObject>();
    projectiles = new ArrayList<Projectile>();

    livesLeft = TowerDefenseGame.MAX_LIVES;
    curScore = 0;
    currentBalance = 100 + chosenLevel*50;
  }
  /**
   * Adds an enemy to the game elements
   * @param enemy Enemy to be added
   */
  public void addEnemy(Enemy enemy){
    enemies.add(enemy);
  }
  /**
   * Adds a defense to the game elements
   * @param def DefenseObject to be added
   */
  public void addDefense(DefenseObject def){
    defenses.add(def);
  }
  /**
   * Adds a projectile to the game elements
   * @param proj Projectile to be added
   */
  public void addProjectile(Projectile proj){
    projectiles.add(proj);
  }
  /**
   * Sorts the game elements into a priority queue and returns it for drawing
   * @return returns a priority queue with all the game objects to be drawn
   */
  public PriorityQueue<GameObj> getGameObjsForDrawing(){
    PriorityQueue<GameObj> queue = new PriorityQueue<GameObj>(Math.max(defenses.size()+enemies.size()+projectiles.size(),1));
    for(int i=0; i < defenses.size(); i++)
      queue.add(defenses.get(i));
    for(int i=0; i < enemies.size(); i++)
      queue.add(enemies.get(i));
    for(int i=0; i < projectiles.size(); i++)
      queue.add(projectiles.get(i));
    
    return queue;
  }
}

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