Android Open Source - feup-lpoo-android-tower-defense Status Effect

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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;
//from  w  w w  . j a v a2s. c  om
import pt.up.fe.lpoo.framework.Image;

/**
 * This class contains the information relative to status effects that may affect game objects with several diverse
 *  consequences
 * @author Joao Marinheiro
 * @author Luis Cleto
 *
 */
public class StatusEffect {
  public static final int EFFECT_IMAGE_SIDE = 50; /**< Side occupied by the sprite of a status effect */
  /**
   * Contains the different types of status effect that are implemented
   */
  public enum EffectType{
    Frozen, Poisoned, Slowed
  }
  /** Type of this status effect */
  public EffectType type;
  /** Damage type of this status effect */
  public Enemy.DamageType damageType;
  private float duration;
  private float elapsedSeconds;
  /** Signals whether this status effect has finished or not */
  public boolean toRemove = false;
  private int damagePerSecond = 0;
  private int secondOfLastDamage = 0;
  private double reactionTimeModifier = 1.0;
  
  /**
   * Constructor for a status effect that does not deal damage or affect the enemies reaction time
   * @param type type of effect
   * @param duration duration of the effect (seconds)
   */
  public StatusEffect(EffectType type, float duration){
    this.type = type;
    this.duration = duration;

    if(type == EffectType.Poisoned)
      damageType = Enemy.DamageType.Magic;
    else
      damageType = Enemy.DamageType.Piercing;
  }
  /**
   * Constructor for a status effect that does not deal damage but affects the enemies reaction time
   * @param type type of effect
   * @param duration duration of the effect (seconds)
   * @param reactionTimeModifier multiplier for the affected enemies' reaction time
   */
  public StatusEffect(EffectType type, float duration, double reactionTimeModifier){
    this.type = type;
    this.duration = duration;
    this.reactionTimeModifier = reactionTimeModifier;

    if(type == EffectType.Poisoned)
      damageType = Enemy.DamageType.Magic;
    else
      damageType = Enemy.DamageType.Piercing;
  }
  /**
   * Constructor for a status effect that deals damage
   * @param type type of effect
   * @param duration duration of the effect (seconds)
   * @param dps damage dealt per second
   */
  public StatusEffect(EffectType type, float duration, int dps){
    this.type = type;
    this.duration = duration;
    this.damagePerSecond = dps;

    if(type == EffectType.Poisoned)
      damageType = Enemy.DamageType.Magic;
    else
      damageType = Enemy.DamageType.Piercing;
  }
  /**
   * @return returns the image to represent the status effect on the enemy
   */
  public Image getImage() {
    if(type == EffectType.Frozen)
      return Assets.frozenEffect;
    else if(type == EffectType.Poisoned)
      return Assets.poisonEffect;
    else if(type == EffectType.Slowed)
      return Assets.slowEffect;
    else
      return Assets.frozenEffect;
  }
  
  /**
   * updates the status effects variables
   * @param deltaTime elapsed time since last update
   */
  public void update(float deltaTime){
    if(toRemove)
      return;
    elapsedSeconds += (deltaTime/100.0f);
    if(elapsedSeconds > duration)
      toRemove = true;
  }
  /**
   * @return returns the time remaining for the status effect
   */
  public float getRemainingTime(){
    return duration-elapsedSeconds;
  }
  
  /**
   * @return returns the damage to be dealt by the status effect 
   */
  public int getDamage(){
    if(damagePerSecond == 0)
      return 0;
    int damage = 0;
    while(elapsedSeconds >= secondOfLastDamage+1 && secondOfLastDamage < (int)duration){
      secondOfLastDamage++;
      damage+=damagePerSecond;
    }
    return damage;
  }
  
  /**
   * @return returns the reaction time modifier caused by the status effect
   */
  public double getReactionTimeModifier(){
    return reactionTimeModifier;
  }
  /**
   * @return returns the damage type inflicted by a status effect object
   */
  public Enemy.DamageType getDamageType()
  {
    return damageType;
  }
}
Java Source Code List
