Android Open Source - Hungry-Mouse Enemy

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Back to project page Hungry-Mouse.

License

The source code is released under:

MIT License

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Java Source Code

//Name:   Enemy.java
//Purpose:  all the attributes and functions of the enemy like health, death, collision and more
/*from   www .j  a  va 2  s  .  c  o  m*/
package com.hungry.mouse.main;

//android libraries stored in SDK platform
import android.graphics.Rect;//hold 4 integer coordinates for rectangle

public class Enemy {

  private int power;
  protected int centerX;
  protected int speedX;
  protected int centerY;
  protected Background bg = GameScreen.getBg1();
  private Mouse Mouse = GameScreen.getMouse();

  public Rect r = new Rect(0, 0, 0, 0);
  protected int health;//total health of enemy
  public boolean alive=true;
  
  protected int movementSpeed;//speed of enemy

  //Behavioral Method, update coordinates and intersects
  public void update() {
    follow();
    centerX += speedX;
    speedX = bg.getSpeedX() * 5 + movementSpeed;
    r.set(centerX - 25, centerY - 25, centerX + 25, centerY + 35);

    if (Rect.intersects(r, Mouse.yellowRed)) {
      checkCollision();
    }

  }
  
  //check if the enemy is killed by the bullets and update score
  public void checkKillsByBullets(){
    if ((this.health == 0) && (this.alive=true))
    {
      Mouse.addKamikaziKilled(1);
      alive=false;
      if (Settings.soundEnabled)
      {
        Assets.collision.play(1);
      }
    }
  }
  
  //check if mouse and enemy had collision
  protected void checkCollision() {
    if (Rect.intersects(r, Mouse.rect)|| Rect.intersects(r, Mouse.rect2) || Rect.intersects(r, Mouse.rect3) || Rect.intersects(r, Mouse.rect4)) {
      die();
    }
  }

  //the enemy follow the mouse
  public void follow() {
    
    if (centerX < -95 || centerX > 810){
      movementSpeed = 0;
    }
    else if (Math.abs(Mouse.getCenterX() - centerX) < 5) {
      movementSpeed = 0;
    }
    else {
      if (Mouse.getCenterX() >= centerX) {
        movementSpeed = 1;
      } else {
        movementSpeed = -1;
      }
    }

  }

  //enemy is die
  public void die() {
    this.setHealth(0);
    Mouse.subtractHealth(10);
    this.setCenterX(-100);
    
    if (Settings.soundEnabled)
    {
      Assets.collision.play(1);
    }
  }

  //when background moves, the enemy must move to the same direction
  public Background getBg() {
    return bg;
  }
  public void setBg(Background bg) {
    this.bg = bg;
  }
  
  //getters//
  public int getPower() {
    return power;
  }

  public int getSpeedX() {
    return speedX;
  }

  public int getCenterX() {
    return centerX;
  }

  public int getCenterY() {
    return centerY;
  }
  
  public int getHealth() {
    return health;
  }

  
  //setters//
  public void setHealth(int health) {
    this.health = health;
  }
  public void setPower(int power) {
    this.power = power;
  }

  public void setSpeedX(int speedX) {
    this.speedX = speedX;
  }

  public void setCenterX(int centerX) {
    this.centerX = centerX;
  }

  public void setCenterY(int centerY) {
    this.centerY = centerY;
  }
  
  public void subtractHealth(int health){
    this.health-=health;
  }
}

Java Source Code List