export default class Enemy extends Phaser.Physics.Arcade.Sprite {
  constructor(scene, x, y, texture, cfg) {
    super(scene, x, y, texture, 0);
    this.scene = scene;
    this.health = cfg.health;
    this.speed = cfg.speed;
    this.xpValue = cfg.xp;
    this.collisionDamage = cfg.collisionDamage || 20;
    scene.physics.world.enable(this);
    scene.add.existing(this);
    this.setOrigin(0.5, 0.5);
  }

  preUpdate(time, delta) {
    super.preUpdate(time, delta);
    const base = this.scene.base;
    const angle = Phaser.Math.Angle.Between(this.x, this.y, base.x, base.y);
    this.scene.physics.velocityFromRotation(angle, this.speed, this.body.velocity);
  }

  takeDamage(amount) { this.health -= amount; }
  isDead() { return this.health <= 0; }
}