using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;

using UnityEngine;

using UnityExtension;

using Random = UnityEngine.Random;

[RequireComponent(typeof(MeshFilter))]
public class Example : MonoBehaviour
{
	//------------------------------------------------------------------------------------------------------------	
	private const string INPUT_PATH = @"Assets/OBJ-IO/Examples/Meshes/Teapot.obj";
	private const string OUTPUT_PATH = @"Assets/OBJ-IO/Examples/Meshes/Teapot_Modified.obj";

    //------------------------------------------------------------------------------------------------------------	
	private void Start()
	{
		//	Load the OBJ in
		var lStream = new FileStream(INPUT_PATH, FileMode.Open);
		var lOBJData = OBJLoader.LoadOBJ(lStream);
		var lMeshFilter = GetComponent<MeshFilter>();
		lMeshFilter.mesh.LoadOBJ(lOBJData);
		lStream.Close();
		
		lStream = null;
		lOBJData = null;

		//	Wiggle Vertices in Mesh
		/*
		var lVertices = lMeshFilter.mesh.vertices;
		for (int lCount = 0; lCount < lVertices.Length; ++lCount)
		{
			lVertices[lCount] = lVertices[lCount] + Vector3.up * Mathf.Sin(lVertices[lCount].x) * 4f;
		}
		lMeshFilter.mesh.vertices = lVertices;
*/
		//	Export the new Wiggled Mesh
		if (File.Exists(OUTPUT_PATH))
		{
			File.Delete(OUTPUT_PATH);
		}
		lStream = new FileStream(OUTPUT_PATH, FileMode.Create);
		lOBJData = lMeshFilter.mesh.EncodeOBJ();
		OBJLoader.ExportOBJ(lOBJData, lStream);
		lStream.Close();
	}
}