上一篇写了如何自动切割动画，这一篇写如何自动生成AnimatorController。
之前网上查了很多资料，看的一直很蒙，看不懂是怎么回事的，这里我先给大家明确几个概念：
画的不好，大家将就着看，写这个工具我们会涉及到很多类，类名包含上图哪个关键字，这个东西就跟哪个东西有关
只要大家能明确这些概念，看懂代码就不难了，下面上代码：
using UnityEngine;
using UnityEditor;
using System.IO;
using UnityEditor.Animations; public class CreatePrefab : EditorWindow
{
#region -- 变量定义
private static string mOutputPath = "";
private static bool mIsCreateAnimatorController = true; private static AnimationClip mStart;
private static AnimationClip mTake;
private static AnimationClip mEnd;
#endregion #region -- 系统函数
private void OnGUI()
{
GUILayout.BeginVertical(); //绘制标题
GUILayout.Space();
GUI.skin.label.fontSize = ;
GUI.skin.label.alignment = TextAnchor.MiddleCenter;
GUILayout.Label("Create Prefabs"); //绘制文本
GUILayout.Space();
mOutputPath = EditorGUILayout.TextField("Output Path:", mOutputPath); GUILayout.Space();
mIsCreateAnimatorController = EditorGUILayout.Toggle("Create AnimaControl:", mIsCreateAnimatorController); if (GUILayout.Button("Create"))
{
CreatePrefabs();
} GUILayout.EndVertical();
}
#endregion #region -- 自定义函数
public static void CreateWindow()
{
//绘制窗口
EditorWindow.GetWindow(typeof(CreatePrefab), true, "Create Prefabs");
}
private static void CreatePrefabs()
{
Object[] _objs = Selection.GetFiltered(typeof(GameObject), SelectionMode.Unfiltered);
if (_objs.Length == )
{
Debug.Log("你没有选择任何物体！");
return;
}
for (int i = ; i < _objs.Length; i++)
{
if (!Directory.Exists(Application.dataPath + "/" + mOutputPath))
{
Directory.CreateDirectory(Application.dataPath + "/" + mOutputPath);
}
GameObject _temObJ = _objs[i] as GameObject;
string _outputPath = "";
if (mOutputPath == "")
{
_outputPath = "Assets/";
}
else
{
_outputPath = "Assets/" + mOutputPath + "/";
}
GameObject _prefab = PrefabUtility.CreatePrefab(_outputPath + _temObJ.name + ".prefab", _temObJ);
if (mIsCreateAnimatorController)
{
AnimatorController _animatorController = CreateAnimatorController(AssetDatabase.GetAssetPath(_objs[i]), _temObJ.name + ".controller", _outputPath + "AnimatorControllers");
Animator _animator = _prefab.GetComponent<Animator>();
if (_animator != null)
{
_animator.runtimeAnimatorController = _animatorController;
}
}
}
AssetDatabase.Refresh();
}
private static AnimatorController CreateAnimatorController(string _assetsPath, string _controllerName, string _outPutPath)
{
//创建AnimatorController文件，保存在_outPutPath路径下
if (!Directory.Exists(_outPutPath))
{
Directory.CreateDirectory(_outPutPath);
} //生成动画控制器（AnimatorController）
AnimatorController _animatorController = AnimatorController.CreateAnimatorControllerAtPath(_outPutPath + "/" + _controllerName); //添加参数（parameters）
_animatorController.AddParameter("Normal", AnimatorControllerParameterType.Float);
_animatorController.AddParameter("Play", AnimatorControllerParameterType.Bool); //得到它的Layer， 默认layer为base,可以拓展
AnimatorControllerLayer _layer = _animatorController.layers[]; //把动画文件保存在我们创建的AnimatorController中
AddStateTransition(_assetsPath, _layer);
return _animatorController;
}
private static void AddStateTransition(string _assetsPath, AnimatorControllerLayer _layer)
{
//添加动画状态机（这里只是通过层得到根状态机，并未添加）
AnimatorStateMachine _stateMachine = _layer.stateMachine; // 根据动画文件读取它的AnimationClip对象
var _datas = AssetDatabase.LoadAllAssetsAtPath(_assetsPath);
if (_datas.Length == )
{
Debug.Log(string.Format("Can't find clip in {0}", _assetsPath));
return;
} // 遍历读取模型中包含的动画片段
foreach (var _data in _datas)
{
if (!(_data is AnimationClip))
{
continue;
}
AnimationClip _newClip = _data as AnimationClip;
switch (_newClip.name)
{
case "Start":
mStart = _newClip;
break;
case "End":
mEnd = _newClip;
break;
case "Take":
mTake = _newClip;
break;
}
} // 先添加一个默认的空状态
AnimatorState _emptyState = _stateMachine.AddState("Empty", new Vector3(_stateMachine.entryPosition.x + , _stateMachine.entryPosition.y, )); // 添加与动画名称对应的装态（AnimatorState）到状态机中（AnimatorStateMachine）中，并设置状态
AnimatorState _startState = _stateMachine.AddState(mStart.name, new Vector3(_stateMachine.entryPosition.x + , _stateMachine.entryPosition.y + , ));
_startState.motion = mStart; AnimatorState _endState = _stateMachine.AddState(mEnd.name, new Vector3(_stateMachine.entryPosition.x + , _stateMachine.entryPosition.y - , ));
_endState.motion = mEnd; AnimatorState _take01State = _stateMachine.AddState("Take01", new Vector3(_stateMachine.entryPosition.x + , _stateMachine.entryPosition.y + , ));
_take01State.motion = mTake; AnimatorState _take02State = _stateMachine.AddState("Take02", new Vector3(_stateMachine.entryPosition.x + , _stateMachine.entryPosition.y - , ));
_take02State.motion = mTake;
_take02State.speed = -; //连接每个状态，并添加切换条件
AnimatorStateTransition _animatorStateTransition = _emptyState.AddTransition(_startState);
_animatorStateTransition.AddCondition(AnimatorConditionMode.Greater, , "Normal");
_animatorStateTransition.hasExitTime = false;
_animatorStateTransition.duration = ; _animatorStateTransition = _emptyState.AddTransition(_endState);
_animatorStateTransition.AddCondition(AnimatorConditionMode.Less, , "Normal");
_animatorStateTransition.hasExitTime = false;
_animatorStateTransition.duration = ; _animatorStateTransition = _startState.AddTransition(_take01State);
_animatorStateTransition.AddCondition(AnimatorConditionMode.If, , "Play");
_animatorStateTransition.hasExitTime = false;
_animatorStateTransition.duration = ; _animatorStateTransition = _endState.AddTransition(_take02State);
_animatorStateTransition.AddCondition(AnimatorConditionMode.If, , "Play");
_animatorStateTransition.hasExitTime = false;
_animatorStateTransition.duration = ;
}
#endregion }
代码很详细了，也写了很多注释，这里就不多说了，大家自己看。
有个坑和大家说一下，我们是有 bool 类型的参数，如何设置 bool 类型的参数呢？
我开始天真的以为是这样的：
_animatorStateTransition.AddCondition(AnimatorConditionMode.If, 0, "BoolParameter");
_animatorStateTransition.AddCondition(AnimatorConditionMode.If, 1, "BoolParameter");
不知道有多少同学和我一样，有这种天真的想法，然后你会发现这样设置根本没用，值全部都为True,根本设置不了false
后来查了好久资料，才发现是这样设置 bool 类型的参数的：
_animatorStateTransition.AddCondition(AnimatorConditionMode.If, 0, "BoolParameter"); 为True
_animatorStateTransition.AddCondition(AnimatorConditionMode.IfNot, 0, "BoolParameter");为False
实在是坑，不想说话。。。。。。。
附上一张效果图
填写好输出路径，在 Project 视图中选中模型，点击 Create 按钮吧，然后你会发现预制体以及动画状态机都帮你制作好了，嘿嘿！
然后状态之间具体怎么连，这部分是需要自己根据项目需求自己写的，我这里只是给大家一个例子。