PlayerHurt

using UnityEngine;
using System.Collections;

public class PlayerHurt : MonoBehaviour {

    public int damage;    //Damage the player will receive when enter the trigger

    private void OnTriggerEnter(Collider other) {
        if (other.gameObject.CompareTag("Player")) {
            other.GetComponent<PlayerHealth>().hurt(damage);
        }
    }
}