koobas.hobune.stream
How to get all components in scene which inherit a class
How to get all components from gameobjects in scene where those components inherit the same class?
For example: FindObjectsOfType(); // I'd like it to return components of type MachineGun, GrenadeLauncher, etc. which inherit CarWeapon
if you use C# then I just gave you the solution?
$$anonymous$$achineGun[] mgs = FindObjectsOfType<$$anonymous$$achineGun>();
foreach($$anonymous$$achineGun mg in mgs)
{
if(typeof(mg).IsSubclassOf(typeof (CarWeapon)))
{
//yes it inherits from CarWeapon
}
}
I believe this should work.
For components on active GameObjects:
BaseClass[] components = GameObject.FindObjectsOfType<BaseClass>();
For all active and inactive:
BaseClass[] components = Resources.FindObjectsOfTypeAll<BaseClass>();
These will find all BaseClass components as well as derived classes. In your case BaseClass would be CarWeapon.
Thanks. I was doing that, but didn't realized I was getting an error before it was called, so it didn't even get to that point. Dumb mistake.
Active and inactive components:
List<GameObject> rootObjectsInScene = new List<GameObject>();
Scene scene = SceneManager.GetActiveScene();
scene.GetRootGameObjects(rootObjectsInScene);
for (int i = 0; i < rootObjectsInScene.Count; i++)
{
BaseClass[] allComponents = rootObjectsInScene[i].GetComponentsInChildren<BaseClass>(true);
for (int j = 0; j < allComponents.Length; j++)
{
allComponents[j].DoSomething();
}
}
required namespaces:
using UnityEngine;
using UnityEngine.SceneManagement;
using System.Collections.Generic;
Exactly what I was looking for - didn't occur to me to travel from the active scene.
Nifty LINQ equivalent:
var baseComponents = Scene$$anonymous$$anager.GetActiveScene()
.GetRootGameObjects()
.Select$$anonymous$$any(gameObject => gameObject
.GetComponentsInChildren<BaseClass>())
.ToList();
Unfortunately, it does not work with other classes than Unity Objects... So if you want all interfaces derived classes, forget.
It does work with interfaces, however you probably have to use the non generic version that takes a System.Type as parameter. The generic parameter has a constraint to UnityEngine.Object
ps: of course the method can only find either $$anonymous$$onobehaviour derived or ScriptableObject derived classes which implement that interface. "Normal" classes are not trackable classes.
