Android Open Source - myGame Enemy

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Back to project page myGame.

License

The source code is released under:

MIT License

Java Source Code

package com.mygdx.mygame;
//from  ww w.java 2 s. co m
import java.util.Random;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.math.Vector2;

public class Enemy {

  private static final float ENEMY_SPEED = 250;
  private Texture enemyTexture;
  private AnimatedSprite animatedSprite;
  private ShotManager shotManager;
  private float spawnTimeout = 0f;

  public Enemy(Texture enemyTexture, ShotManager shotManager) {
    this.enemyTexture = enemyTexture;
    this.shotManager = shotManager;
    spawn();
  }

  private void spawn() {
    Sprite enemySprite = new Sprite(enemyTexture);
    animatedSprite = new AnimatedSprite(enemySprite);
    int xPosition = createRandomXPosition();
    int yPosition = MyGdxGame.SCREEN_HEIGHT - animatedSprite.getHeight();
    // animatedSprite.setPosition(xPosition, );
    animatedSprite.setPosition(xPosition, yPosition);
    animatedSprite.setVelocity(new Vector2(ENEMY_SPEED, 0));
    animatedSprite.setDead(false);
  }

  private int createRandomXPosition() {
    Random random = new Random();
    int randomNumber = random.nextInt(MyGdxGame.SCREEN_WIDTH
        - animatedSprite.getWidth() + 1);
    return randomNumber + animatedSprite.getWidth() / 2;
  }

/*  private int createRandomYPosition() {
    Random random = new Random();
    int randomNumber = random.nextInt(MyGdxGame.SCREEN_HEIGHT
        - animatedSprite.getHeight() + 1);
    return randomNumber + animatedSprite.getHeight() / 2;
  }*/

  public void draw(SpriteBatch batch) {
    if (!animatedSprite.isDead())
      animatedSprite.draw(batch);

  }

  private boolean shouldChangeDirection() {
    Random random = new Random();
    return random.nextInt(21) == 0;
  }

  public void update() {

    if (animatedSprite.isDead()) {
      spawnTimeout -= Gdx.graphics.getDeltaTime();
      if (spawnTimeout < 0) {
        spawn();
      }
    } else {
      if (shouldChangeDirection())
        animatedSprite.changeDirection();
      if (souldFire())
        shotManager.fireEnemyShot(animatedSprite.getX());
      animatedSprite.move();
    }
  }

  private boolean souldFire() {
    Random random = new Random();
    return random.nextInt(31) == 0;
  }

  public Rectangle GetBoundingBox() {
    return animatedSprite.getBoundingBox();
  }

  public void hit() {
    animatedSprite.setDead(true);
    spawnTimeout = 2f;
  }

}

Java Source Code List

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