using UnityEngine;
using UnityEditor;
using UnityEditor.SceneManagement;
using System.Collections;
using System.Collections.Generic;
using System;
using System.Linq;

public class ModelProcessorExample : AssetPostprocessor
{
	void OnPreprocessModel ()
	{
		var imp = assetImporter as ModelImporter;
		var asset = AssetDatabase.LoadAssetAtPath<GameObject>(assetPath) as GameObject;
	}

	void OnPostprocessModel (GameObject go)
	{
		Process(go.transform);
	}

	void Process (Transform tran)
	{
		string name = tran.name.ToLower();

		if (name.Contains("boxcollider"))
		{
			//TODO: don't create it as a child if it's not rotated at all
			//just add the boxCollider directly to the parent instead!

			var mf = tran.GetComponent<MeshFilter>();

			if(mf != null)
			{
				var mesh = mf.sharedMesh;

				if(mesh != null)
				{
					var box = tran.gameObject.AddComponent<BoxCollider>();
					box.size = mesh.bounds.size;
					box.center = mesh.bounds.center;

					GameObject.DestroyImmediate(tran.GetComponent<Renderer>());
				}
			}
		}
		else if (name.Contains("collider"))
		{
			tran.gameObject.AddComponent<MeshCollider>();
		}

		// Recurse
		foreach (Transform child in tran)
		{
			Process(child);
		}
	}
}