koobas.hobune.stream
How do I remove ALL components from a gameObject?
Is it possible to remove all components in a game object, leaving behind the Transform? How can this be done?
I'd think this should be about right...
foreach (var comp in gameObject.GetComponents<Component>())
{
if (!(comp is Transform))
{
Destroy(comp);
}
}
This doesn't work if you have components which rely on other components, Unity will fail to destroy them and log an error.
@Seanm07 Probably hacky but you could keep looping on it until they all get removed in an order Unity will accept.
What if I only want to disable the components and not destroy them? I'm attempting:
foreach (var comp in gameObject.GetComponents())
{
if (!(comp is Transform))
{
comp.GetComponent<Component>().enabled = false;
}
}
but I get error:
'Component' does not contain a definition for 'enabled' and no accessible extension method 'enabled' accepting a first argument of type 'Component' could be found (are you missing a using directive or an assembly reference?)
EDIT: I finally got this to work with the following code:
GameObject obj;
Component[] components = obj.GetComponents(typeof(Component));
for (int i = 0; i < components.Length; i++)
{
var indexOfComponentToChange = i; // index of the component to disable
Behaviour castedToBehaviour = components[indexOfComponentTochange] as Behaviour;
if (castedToBehaviour != null)
{
castedToBehaviour.enabled = false;
}
}
A word of caution however, this disables the components on the "backend". That is; even if you manually re-enable them in the inspector, they will not re-enable. You will have to run the code again with castedToBehaviour.enabled = true; press play at least once so the code runs and it will reverse the effects.
How this can be done via editor?
This works for me, full script below:
using UnityEngine;
[ExecuteInEditMode]
public class RemoveAllComponentsFromGameObject : MonoBehaviour
{
//This is an editor script that is used to remove all components of a gameobject.
//To use: Add this script to a gameobject
//To clear multiple objects from components, mark multiple objects
//and add the script to them
void OnEnable()
{
for (int i = 0; i < 6; i++)
{
foreach (var comp in gameObject.GetComponents<Component>())
{
//Don't remove the Transform component
if (!(comp is Transform))
{
//Don't remove this script until the loop has finished
if (!(comp is RemoveAllComponentsFromGameObject))
{
DestroyImmediate(comp);
}
}
}
}
if(gameObject.GetComponents<Component>().Length > 0)
Debug.LogWarning("Tried clearing object but could not finish: "
+ gameObject.transform.name);
else
Debug.LogWarning("Cleared components from object successfully: "
+ gameObject.transform.name);
DestroyImmediate(gameObject.GetComponent<RemoveAllComponentsFromGameObject>());
}
}
