SmartButtonEditor.cs for Unity3D

gistfile1.cs

using UnityEngine;
using System.Collections;
using UnityEditor;

[CustomEditor (typeof(SmartButton))]
public class SmartButtonEditor : Editor {

	/// <summary>
	/// The smart button itself. Here we will have stored all of his variables
	/// </summary>
	private SmartButton smartButton;

	public override void OnInspectorGUI ()
	{
		// Unity provides a target when overriding the inspector look, and it has always the same type we declare on CustmoEditor(typeof()) on top
		smartButton = (SmartButton)target;

		//We will use this variable, the selected enum in the smart button, not only to do different things in runtime, but also to show different inputs in the editor
		smartButton.UseAs = (SmartButton.Usage)EditorGUILayout.EnumPopup("Use As", smartButton.UseAs);

		switch (smartButton.UseAs)
		{

			//Default usage just triggers an event in case someone is listening.
		case SmartButton.Usage.Default:
			break;

			//Just show a textfield so the user can enter the url he wants to open
		case SmartButton.Usage.URL:
			smartButton.Value = EditorGUILayout.TextField("URL",smartButton.Value);
			break;
		
			//Same with the scenes
		case SmartButton.Usage.SceneLoader:
			smartButton.Value = EditorGUILayout.TextField("Scene Name",smartButton.Value);
			break;

			//So here it gets tricky.
		case SmartButton.Usage.PanelSwitcher:
			//We tell the layout that the following fields should be in the same level
			EditorGUILayout.BeginHorizontal();
			//Adding a label
			EditorGUILayout.LabelField("Our Parent Panel");
			//Create a Game Object input. The user can drop game objects here, and we store them in OurPanel variable
			smartButton.OurParentPanel = (GameObject)EditorGUILayout.ObjectField(smartButton.OurParentPanel,typeof(GameObject),true);
			//Tell the layout that we can keep adding stuff in the next level
			EditorGUILayout.EndHorizontal();

			//Same with the go to panel
			EditorGUILayout.BeginHorizontal();
			EditorGUILayout.LabelField("Go to Panel");
			smartButton.GoToPanel = (GameObject)EditorGUILayout.ObjectField(smartButton.GoToPanel,typeof(GameObject),true);
			EditorGUILayout.EndHorizontal();

			//Good things about customizing inspector views. We can add some comments
			EditorGUILayout.LabelField("If Go to Panel is null, it will only hide Our Parent Panel");
			break;
			
		case SmartButton.Usage.IAPPurchase:
			//Simple text field for the item id we want to purchase
			smartButton.Value = EditorGUILayout.TextField("Item Id",smartButton.Value);
			break;

			//Show nothing, just want to exit game
		case SmartButton.Usage.Exit:
			break;

			//Here we will get a monobehaviour reference, and a string to now what coroutine to call
		case SmartButton.Usage.CoroutineTrigger:

			EditorGUILayout.BeginHorizontal();
			EditorGUILayout.LabelField("Component with Coroutine");
			//Just getting the Monobehaviour reference from our object input field
			smartButton.ComponentToUse =  (MonoBehaviour)EditorGUILayout.ObjectField(smartButton.ComponentToUse,typeof(MonoBehaviour),true);
			EditorGUILayout.EndHorizontal();

			//And the name of the coroutine
			smartButton.Value = EditorGUILayout.TextField("Coroutine Name",smartButton.Value);
			break;
		}
	
		//IF something has changed, we let unity know, so it makes us save the scene, and therefore, the smart button values will be saved
		if(GUI.changed)
			EditorUtility.SetDirty(target);
	}

}