koobas.hobune.stream
Invincibility Power Up
Hi guys,
I am trying to create a invincibility powerup that lasts a few seconds
I have the following code:
private PlayerHealth healthScript;
void Awake ()
{
healthScript = transform.root.GetComponent<PlayerHealth>();
}
// Use this for initialization
void OnCollisionEnter2D (Collision2D other)
{
if (other.gameObject.tag == "Player")
{
StartCoroutine(NoDamage());
GetComponent<SpriteRenderer>().enabled = false;
GetComponent<BoxCollider2D>().enabled = false;
}
}
IEnumerator NoDamage ()
{
Debug.Log ("Health Disabled " + PlayerHealth.health);
healthScript.enabled = false;
yield return new WaitForSeconds(5);
Debug.Log ("Health Enabled " + PlayerHealth.health);
healthScript.enabled = true;
//Destroy(gameObject);
}
and I receive an error saying "object reference not set to an instance of an object" on the line "healthScript.enabled = false;"
This script is on the character.
Why does it tell me the script doesn't exist? Am I doing it wrong? What other way can I go about it?
It seems that your healthScript variable isn't set properly. Also, if I understand it right you place this script on the power up and not on the player, so the healthScript = transform.root.GetComponent(); will return null because the script isn't on the same object you are calling it from.
Try this:
void OnCollisionEnter2D (Collision2D other)
{
if (other.gameObject.tag == "Player")
{
healthScript = other.gameObject.GetComponent<PlayerHealth>();
StartCoroutine(NoDamage());
GetComponent<SpriteRenderer>().enabled = false;
GetComponent<BoxCollider2D>().enabled = false;
}
}
IEnumerator NoDamage ()
{
healthScript.enabled = false;
Debug.Log ("Health Disabled " + healthScript.health);
yield return new WaitForSeconds(5);
Debug.Log ("Health Enabled " + healthScript.health);
healthScript.enabled = true;
//Destroy(gameObject);
}
You are correct. $$anonymous$$y health script is on my character and my power up script is on my power up.
I have no error this time, but the script is still not disabled.
Are you calling these methods from Update? That might be why it still wont disable.
