using UnityEngine;
using UnityEditor;
using System.Collections;
using System.IO;
using System.Text.RegularExpressions;
using System;
using System.IO;


public class FbxAnimListPostprocessor : MonoBehaviour
{
    [MenuItem("Assets/SplitAnimNew")]
    public static void SplitAnim()
	{
        UnityEngine.Object obj  = Selection.activeObject;
        if( null != obj )
        {
            string assetPath = AssetDatabase.GetAssetPath(obj);
			try
			{
				string fileAnim;
				fileAnim = assetPath;
				string ClipText = Path.ChangeExtension(fileAnim, ".txt");
				StreamReader file = new StreamReader(ClipText);
				string sAnimList = file.ReadToEnd();
				file.Close();
				//
				if (EditorUtility.DisplayDialog("FBX Animation Import from file",
					fileAnim, "Import", "Cancel"))
				{
					System.Collections.ArrayList List = new ArrayList();
					ParseAnimFile(sAnimList, ref List);

                    ModelImporter modelImporter = ModelImporter.GetAtPath(assetPath) as ModelImporter;
                    modelImporter.animationType = ModelImporterAnimationType.Legacy;
					//modelImporter.clipAnimations. = true;
					modelImporter.clipAnimations = (ModelImporterClipAnimation[])
						List.ToArray(typeof(ModelImporterClipAnimation));
                    AssetDatabase.ImportAsset(assetPath);

					EditorUtility.DisplayDialog("导入成功",
						"Number of imported clips: "
						+ modelImporter.clipAnimations.GetLength(0).ToString(), "OK");
				}
			}
			catch { }
			// (Exception e) { EditorUtility.DisplayDialog("Imported animations", e.Message, "OK"); }
		}
	}

	static void ParseAnimFile(string sAnimList, ref System.Collections.ArrayList List)
	{
		Regex regexString = new Regex(" *(?<firstFrame>[0-9]+) *- *(?<lastFrame>[0-9]+) *(?<loop>(loop|noloop| )) *(?<name>[^\r^\n]*[^\r^\n^ ])",
			RegexOptions.Compiled | RegexOptions.ExplicitCapture);

		Match match = regexString.Match(sAnimList, 0);
		while (match.Success)
		{
			ModelImporterClipAnimation clip = new ModelImporterClipAnimation();

			if (match.Groups["firstFrame"].Success)
			{
				clip.firstFrame = System.Convert.ToInt32(match.Groups["firstFrame"].Value, 10);
			}
			if (match.Groups["lastFrame"].Success)
			{
				clip.lastFrame = System.Convert.ToInt32(match.Groups["lastFrame"].Value, 10);
			}
			if (match.Groups["loop"].Success)
			{
				clip.loop = match.Groups["loop"].Value == "loop";
			}
			if (match.Groups["name"].Success)
			{
				clip.name = match.Groups["name"].Value;
			}

			List.Add(clip);

			match = regexString.Match(sAnimList, match.Index + match.Length);
		}
	}
}