koobas.hobune.stream
Trouble getting variables from cloned scripts.
Making a simple pong clone but I cannot get the CPU paddle to follow the ball. I am having this issue because the paddle refuses to see the script/variable in the cloned ball (It will work if I set the ball to start on screen but will stop functioning once the ball respawns. Please help.
using UnityEngine;
using System.Collections;
public class BallScript : MonoBehaviour {
public AudioSource blip;
public Caller other;
public float ballx;
// Use this for initialization
void Start () {
rigidbody.AddForce(0, -150.0f, 0);
}
// Update is called once per frame
void Update () {
ballx = gameObject.transform.position.x;
if (gameObject.transform.position.y <= -1.0f) {
Destroy(gameObject);
other.ContinueSpawn();
}
if (gameObject.transform.position.y >= 20.0f) {
Destroy(gameObject);
other.ContinueSpawn();
}
}
void OnCollisionEnter(Collision Collision)
{
this.audio.Play();
rigidbody.velocity = rigidbody.velocity * 1.1f;
}
}
And the paddle script.
enter code hereusing UnityEngine;
using System.Collections;
public class CpuPaddle : MonoBehaviour {
public BallScript other;
public float ballx;
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
other.GetComponent<BallScript>();
ballx = other.ballx;
if (ballx < gameObject.transform.position.x)
{
transform.Translate(-10f * Time.deltaTime, 0, 0);
}
if (ballx > gameObject.transform.position.x)
{
transform.Translate(10f * Time.deltaTime, 0, 0);
}
}
}
Thanks guys.
what is "other" in this second script? Looks undefined
Other in the second script is defined through drag/drop in the editor.
The destroyed ball and the instantiated ball are two different gameObjects. Therefore the cpu paddle can't possibly carry over the reference to it.
You can either have it look for a new ball when the old was destroyed (rough code, requires some more setup):
if(other == null)
other = GameObject.FindWithTag("Ball");
Or instead of destroying the old ball just reuse it:
void RespawnMe(){
transform.position = startposition;
rigidbody.velocity = Vector3.zero;
rigidbody.AddForce(0, -150.0f, 0);
}
At the end of the day, this is how it all got fixed. Thanks Lockstep for putting me in the right direction.
using UnityEngine;
using System.Collections;
public class CpuPaddle : MonoBehaviour {
public GameObject other;
public float ballx;
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
if (other == null) {
other = GameObject.FindWithTag("ball");
Debug.Log("ball aquired");
}
ballx = other.GetComponent<BallScript>().ballx;
if (ballx < gameObject.transform.position.x)
{
transform.Translate(-10f * Time.deltaTime, 0, 0);
}
if (ballx > gameObject.transform.position.x)
{
transform.Translate(10f * Time.deltaTime, 0, 0);
}
}
}
