level5.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) {
    const isSpace = warrior.look().find(space => space.isUnit());
    let isEnemy = false;
    if (isSpace) {
      warrior.look().forEach(_space => {
        warrior.think(_space);
        if (_space) {
          if (_space.isUnit()) {
            if (_space.getUnit().isEnemy()) {
              isEnemy = true;
            }
          }
        }
      });
    }
    if (isEnemy) {
      warrior.walk('backward');
    } else {
      warrior.rest();
    }
  }

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