koobas.hobune.stream
Change material on raycast hit?
Hello all! I was wondering how I'd go about changing an objects material when said object gets by the player's raycast. I already have a script on the player for raycasts, and a script on the object that can change the material, etc. Can anyone point me in the right direction?
Please, provide the 2 scripts if you want some help.
Basically, you just have to do the following :
if( Physics.Raycast( ... ) )
{
$$anonymous$$aterialScript materialScript = hitInfo.transform.GetComponent<$$anonymous$$aterialScript>();
if( materialScript != null )
materialScript.Change$$anonymous$$aterial();
}
public float range; public Camera cam; public float damage;
void Update ()
{
if(Input.GetButtonDown("Fire1"))
{
Shoot();
}
}
void Shoot()
{
RaycastHit hit;
if(Physics.Raycast(cam.transform.position, cam.transform.forward, out hit, range));
{
hit.transform.GetComponent<TreeScript>();
TreeScript tree = hit.transform.GetComponent<TreeScript>();
if(tree != null)
{
tree.TakeDamage(damage);
}
hit.transform.GetComponent<StoneScript>();
StoneScript stone = hit.transform.GetComponent<StoneScript>();
if(stone != null)
{
stone.TakeDamage(damage);
}
}
}
public $$anonymous$$aterial[] material;
[HideInInspector] public Renderer rend;
// Use this for initialization
void Start () {
rend = GetComponent<Renderer>();
rend.enabled = true;
rend.shared$$anonymous$$aterial = material[0];
}
// Update is called once per frame
public void materialChange () {
rend.shared$$anonymous$$aterial = material[1];
}
I tried what you said but to no avail.. no errors.. it just doesn't do anything. I tested with a debug log to see what wasn't working. The if physics != null thing is working, but it's not properly carrying out the materialChange function. Any ideas?
The materialController must be attached to the gameobject with the Rigidbody (or Collider, I can't remember). Otherwise, you will have to call GetComponentInChildren or GetComponentInParent
void callChangeMat()
{
RaycastHit hit = new RaycastHit ();
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
if (Physics.Raycast (ray, out hit, 5000)) {
if (hit.transform.tag == "you can add the tag here if need be") {
//make sure the change matereial script is attached to the object hit.
//make sure the ChangeMatFunction is set to public
hit.transform.GetComponent<yourScriptName> ().ChangeMatFunction ();
}
}
}
So I tested these scripts and got a good output so hopefully you can adjust it to your needs.
First the shoot script:
public float range = 50;
public Camera cam;
public float damage;
public GameObject shotHitParticle;
void Update()
{
if (Input.GetButtonDown("Fire1"))
{
GunShot();
}
}
void GunShot()
{
RaycastHit hit;
if (Physics.Raycast(cam.transform.position, cam.transform.forward, out hit, range))
{
// The farm components are what I named the material change script
// So remember to replace that part of the script with the name of
// your second script.
if (hit.collider.GetComponent<Farm>() != null)
{
hit.collider.GetComponent<Farm>().materialChange(hit.collider.GetComponent<Renderer>());
Instantiate(shotHitParticle, hit.point, hit.collider.transform.rotation);
}
}
}
The Color Change Script:
public Material[] material;
[HideInInspector] public Renderer rend;
// Use this for initialization
void Start()
{
rend = GetComponent<Renderer>();
rend.enabled = true;
rend.material = material[0];
}
// Update is called once per frame
public void materialChange(Renderer render)
{
render.material = material[1];
}
If you find a problem feel free to comment :D
