Is there a data type for the object/component type script? C#

Questions & Answers
1

My question is, if there’s a data type for scripts as objects.

If possible, I’d like to create a public variable containing all the scripts attached to an object, which can be modified in the Unity editor. Pretty much like an enum.

And after that, also a menu containing the methods of the selected script.

It would be pretty much the same as the method selection for buttons in the new UI system.

How can I achieve this in Unity?

Thanks in advance!

2

Yes, you can achieve this and you will need reflection. There really isn’t a quick answer, so I’ll make an example. (You can gather a list of attached scripts ( MonoBehaviours ), but that won’t really help you with a popup (like an enum).)

Instead, let’s say this is your main class:

public class ScriptManager : MonoBehaviour
{
    public MonoBehaviour selectedScript;
    public string selectedMethod;
}

Then the respective editor (placed in Editor/ folder):

using System.Linq;
using System.Reflection;
using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(ScriptManager))]
public class ScriptManagerEditor : Editor
{
    public override void OnInspectorGUI()
    {
        ScriptManager manager = (ScriptManager)target;

        MonoBehaviour[] scripts = manager.GetComponents<MonoBehaviour>();
        string[] scriptNames = scripts.Select(s => s.GetType().Name).ToArray();

        int newIndex = EditorGUILayout.Popup("Script", scripts.ToList().IndexOf(manager.selectedScript), scriptNames);
        if (newIndex >= 0)
            manager.selectedScript = scripts[newIndex];

        if (manager.selectedScript != null)
        {
            MethodInfo[] methods = manager.selectedScript.GetType().GetMethods().Where(m => m.DeclaringType == manager.selectedScript.GetType()).ToArray();
            string[] methodNames = methods.Select(m => m.Name).ToArray();

            int methodIndex = EditorGUILayout.Popup("Method", methodNames.ToList().IndexOf(manager.selectedMethod), methodNames);
            if (methodIndex >= 0)
                manager.selectedMethod = methodNames[methodIndex];
        }
    }
}

With this you can select any attached script and choose any (public, directly implemented) method. Should look like this:

40423-script-method-reflection.png

Although above code is very short, there is a LOT of stuff happening here. I’m afraid don’t really have the time to comment/explain it all.

Also, the new UI system has source code publicly available so you could grab their code.

3

I’ve tested this idea and it works (in Editor). Sorry, it’s in uJS.

#pragma strict

public var testArray : MonoScript[]; //Add a script in Editor

function Update ()
{
	if(Input.GetKeyDown(KeyCode.J))
	{
		gameObject.AddComponent(testArray[0].name);
	}
}