LD39/game/Assets/Scripts/PowerDrop.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PowerDrop : MonoBehaviour 
{
    public float powerAmount = -100.0f;

    private float timeTillSelfPop;

    [SerializeField]
    private UnityEngine.UI.Text textField;
    private bool popped = false;

    void OnTriggerEnter(Collider other)
    {
        if (!popped)
        {
            if (other.tag == "Player")
            {
                other.GetComponent<Player>().PowerLevel += powerAmount;
                popped = true;
                Pop();
            }
        }
    }

	// Use this for initialization
	void Start () 
    {
        textField.text = "+" +powerAmount.ToString();
        timeTillSelfPop = 5.2f;
	}
	
	// Update is called once per frame
	void Update () 
    {
        timeTillSelfPop -= Time.deltaTime;
        if (timeTillSelfPop < 0)
        {
            Pop();
        }
	}

    private void Pop()
    {
        GameObject.Destroy(gameObject);
    }
}