using UnityEngine;
  using System.Collections;
  
  public class Spawner : MonoBehaviour {
  
      public Transform trans;
      public float interval;
      private Transform player;
      public float randomScale = 1;
      public bool doAlways = false;
  
      void Awake()
      {
          player = GameObject.FindGameObjectWithTag("Player").transform;
          InvokeRepeating("Spawn", interval, interval);
      }
  
          void Spawn () {
          //Only spawn if player is close by
          if(doAlways  || Vector3.Distance(transform.position, player.position)<=50)
              Instantiate(trans, transform.position+Random.insideUnitSphere, transform.rotation);
          }
  }