koobas.hobune.stream
2 same Scripts w/ GetComponent : one works, one doesn't
I want to make an application for both Standalone version and Android version, in which i'm trying to enable Mesh Renderer of an object attached to its parent object when i press/touch button.
edit: Sorry if i wasn't clear. So this is the case, there is an object called Box A which has child box B. The renderer of box B is disabled at start. When raycast from main camera hit the box A, and then i touch the button (in which the script is attached to), the render of box B should be enabled. That's the idea which runs perfectly in pc-version.
In the pc-version i attach this script in the main camera and it works superb
public class RayCast : MonoBehaviour {
public float rayDistance;
RaycastHit hit;
void Update () {
Debug.DrawRay (this.transform.position, this.transform.forward * rayDistance,
Color.blue);
RaycastHit hit;
if (Physics.Raycast (this.transform.position, this.transform.forward, out
hit, rayDistance, 1<<8)) {
if (Input.GetButtonDown ("Fire1")){
Debug.Log (hit.collider.gameObject.name);
foreach (Transform child in transform){
Renderer renderChild = hit.collider.transform.GetChild(0).GetComponent<Renderer>();
renderChild.gameObject.GetComponent<Renderer>().enabled = true;
}
}
}
}
}
And in the android version I attach at the UI-button a similar script as follow
public class Funktionen : MonoBehaviour {
RaycastHit hit;
public float rayDistance = 5.0f;
private Camera cam;
void Awake () {
cam = GameObject.FindGameObjectWithTag ("MainCamera").GetComponent <Camera>();
}
void Update () {
Debug.DrawRay (cam.transform.position, cam.transform.forward * rayDistance,
Color.blue);
RaycastHit hit;
}
public void Shooting () {
if (Physics.Raycast (cam.transform.position, cam.transform.forward, out
hit, rayDistance, 1<<8)) {
foreach (Transform child in transform){
Renderer renderChild = hit.collider.transform.GetChild(0).GetComponent<Renderer>();
renderChild.gameObject.GetComponent<Renderer>().enabled = true;
}
Debug.Log (hit.collider.gameObject.name);
}
}
}
and this script doesn't work as i can't enable Renderer when i touch the button. what strange is, the debug works and it brought me the name of the parent object each time i touch the button.
So what did i miss?
edit: I added this line in the 2nd script and it brings me the name of the child. but why can't i enable the renderer?
Debug.Log (hit.collider.transform.GetChild(0).name);
I'm wondering how the first script works. UI elements do not use a Renderer but either an Image, or it's parent class $$anonymous$$askedGraphic, or it's parent Graphic. Don't know how to toggle that though
hi, would you $$anonymous$$d telling me why you think i use UI elements? maybe something not clear in my question and i want to clarify it. because i want to activate Render of an object which is parented to another object. so i'm not using UI element except for the android button
I just found the solution for this problem. I commented out this line and now it works.
foreach (Transform child in transform){
}
but I don't know why it caused the GetComponent ().enable not working. can someone maybe explain?
Hello! Just got into a problem when I couldn't GetComponent() from Transfrom component of the same object, while it was INACTIVE.
Transform expandingGroupTransform = this.gameObject.transform.GetChild(1);
Debug.Log (expandingGroupTransform.gameObject.name);
GameObject expandingGroup = expandingGroupTransform.GetComponent<GameObject> ();
Debug.Log (expandingGroup.name);
First Debug.Log was showing the right name of object, while second was not showing anything. I just wrote next thing and it helped:
Transform expandingGroupTransform = this.gameObject.transform.GetChild(1);
Debug.Log (expandingGroupTransform.gameObject.name);
GameObject expandingGroup = expandingGroupTransform.gameObject;
Debug.Log (expandingGroup.name);
Both Debug.Logs showed correct name. Looks like Transform component already holds GameObject component and we can scip GetComponent() part.
