level3.js

class Player {
  constructor() {
    this.maxHealth = 20;
  }

  playTurn(warrior) {
    this.warrior = warrior;
    this.health = warrior.health();
    this.takeAction();
  }

  takeAction() {
    const healthPercent = this.health / this.maxHealth;
    const isHurt = healthPercent < 0.5;
    this.warrior.think(healthPercent);
    if (isHurt) {
      this.isInjured(this.warrior)
    } else {
      this.isAttacking(this.warrior)
    }
  }

  isInjured(warrior) {
    if (warrior.feel().isEmpty()) {
      warrior.rest();
    } else {
      warrior.walk('backward');
    }
  }

  isAttacking(warrior) {
    const spaceWithUnit = warrior.look().find(space => space.isUnit());
    const isEnemy = spaceWithUnit && spaceWithUnit.getUnit().isEnemy();
    if (isEnemy) {
      const isEnemyClose = isEnemy && !warrior.feel().isEmpty();
      if (isEnemyClose) {
        warrior.attack();
      } else {
        warrior.shoot();
      }
    } else {
      warrior.walk()
    }

  }
}