using UnityEngine;
using System.Collections;

public class RPG : MonoBehaviour {
public int A;
public Transform rpg;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

}
void OnGUI(){
if(A == 1){
if(GUI.Button(new Rect(10,10,50,100),"Up")){
rpg.GetComponent<XP>().CurXP = 125;
}
}
}
}

using UnityEngine;
using System.Collections;

public class Xp2 : MonoBehaviour {
public Transform Enemy;
public float HP;
public Transform RPG;
// Use this for initialization
void Start () {
HP = 100;
}

// Update is called once per frame
void Update () {
if(HP <0){
HP =0;
if(HP == 0){
GetComponentInChildren<Xp2>().HP =0;
}
}
if(HP < 6){
RPG.GetComponent<RPG>().A = 1;
}
}
void OnTriggerEnter(){
if(GameObject.FindWithTag("Bullet2")){
HP -=5;
}else{
HP +=0;
}
if(HP == 0){
Destroy(GameObject.FindWithTag("Body"));
}else{
if(HP == 0){
Destroy(gameObject);
}
}
}
}

using UnityEngine;
using System.Collections;

public class XP : MonoBehaviour {
public Transform Player;
public Transform Bullet;
public float xp = 0;
public float Health;
public float CurXP;
// Use this for initialization
void Start () {
xp = 100;
}
// Update is called once per frame
void Update () {
}
void OnTriggerEnter(){
if(GameObject.FindWithTag("Bullet")){
xp -=1;
CurXP -=0.5f;
if(xp <0){
Destroy(GameObject.FindWithTag("Player"));
}
}
}
void OnGUI(){
GUI.Label(new Rect(10, Screen.height - 40, 120, 20),"HP:"+CurXP+ "/"+Health);
}
}