using UnityEngine; using System.Collections; using System.IO; using System.Collections.Generic; using UnityEditor; using UnityEditor.Animations;

public class BuildAnimation : Editor {

//生成出的Prefab的路径 private static string PrefabPath = “Assets/Resources/Prefabs”; //生成出的AnimationController的路径 private static string AnimationControllerPath = “Assets/AnimationController”; //生成出的Animation的路径 private static string AnimationPath = “Assets/Animation”; //美术给的原始图片路径 private static string ImagePath = Application.dataPath + “/Raw”;

[MenuItem (“Build/BuildAnimaiton”)] static void BuildAniamtion () { DirectoryInfo raw = new DirectoryInfo (ImagePath); foreach (DirectoryInfo dictorys in raw.GetDirectories()) { List clips = new List (); foreach (DirectoryInfo dictoryAnimations in dictorys.GetDirectories()) { //每个文件夹就是一组帧动画，这里把每个文件夹下的所有图片生成出一个动画文件 clips.Add (BuildAnimationClip (dictoryAnimations)); } //把所有的动画文件生成在一个AnimationController里 UnityEditor.Animations.AnimatorController controller = BuildAnimationController (clips, dictorys.Name); //最后生成程序用的Prefab文件 BuildPrefab (dictorys, controller); } }

static AnimationClip BuildAnimationClip (DirectoryInfo dictorys) { string animationName = dictorys.Name; //查找所有图片，因为我找的测试动画是.jpg FileInfo[] images = dictorys.GetFiles (“*.jpg”); AnimationClip clip = new AnimationClip (); #if UNITY_5 #else AnimationUtility.SetAnimationType (clip, ModelImporterAnimationType.Generic); #endif EditorCurveBinding curveBinding = new EditorCurveBinding (); curveBinding.type = typeof(SpriteRenderer); curveBinding.path = “”; curveBinding.propertyName = “m_Sprite”; ObjectReferenceKeyframe[] keyFrames = new ObjectReferenceKeyframe[images.Length]; //动画长度是按秒为单位，1/10就表示1秒切10张图片，根据项目的情况可以自己调节 float frameTime = 1 / 10f; for (int i = 0; i < images.Length; i++) { Sprite sprite = AssetDatabase.LoadAssetAtPath (DataPathToAssetPath (images [i].FullName)); keyFrames [i] = new ObjectReferenceKeyframe (); keyFrames [i].time = frameTime * i; keyFrames [i].value = sprite; } //动画帧率，30比较合适 clip.frameRate = 30;

//有些动画我希望天生它就动画循环 if (animationName.IndexOf (“idle”) >= 0) { //设置idle文件为循环动画 SerializedObject serializedClip = new SerializedObject (clip); AnimationClipSettings clipSettings = new AnimationClipSettings (serializedClip.FindProperty (“m_AnimationClipSettings”)); clipSettings.loopTime = true; serializedClip.ApplyModifiedProperties (); } string parentName = System.IO.Directory.GetParent (dictorys.FullName).Name; System.IO.Directory.CreateDirectory (AnimationPath + “/” + parentName); AnimationUtility.SetObjectReferenceCurve (clip, curveBinding, keyFrames); AssetDatabase.CreateAsset (clip, AnimationPath + “/” + parentName + “/” + animationName + “.anim”); AssetDatabase.SaveAssets (); return clip; }

static AnimatorController BuildAnimationController (List clips, string name) { AnimatorController animatorController = UnityEditor.Animations.AnimatorController.CreateAnimatorControllerAtPath (AnimationControllerPath + “/” + name + “.controller”); AnimatorControllerLayer layer = animatorController.layers [0]; AnimatorStateMachine sm = layer.stateMachine; foreach (AnimationClip newClip in clips) { //AnimatorStateMachine machine = sm.AddStateMachine(newClip.name); AnimatorState state = sm.AddState (newClip.name); state.motion = newClip; //AnimatorStateTransition trans = sm.AddAnyStateTransition(state); if (newClip.name == “idle”) { sm.defaultState = state; } //sm.AddEntryTransition(machine); //sm.AddStateMachineExitTransition(machine); //trans.RemoveCondition(0); } AssetDatabase.SaveAssets (); return animatorController; }

static void BuildPrefab (DirectoryInfo dictorys, UnityEditor.Animations.AnimatorController animatorCountorller) { //生成Prefab 添加一张预览用的Sprite FileInfo images = dictorys.GetDirectories () [0].GetFiles (“*.jpg”) [0]; GameObject go = new GameObject (); go.name = dictorys.Name; SpriteRenderer spriteRender = go.AddComponent (); spriteRender.sprite = AssetDatabase.LoadAssetAtPath (DataPathToAssetPath (images.FullName)); Animator animator = go.AddComponent (); animator.runtimeAnimatorController = animatorCountorller; PrefabUtility.CreatePrefab (PrefabPath + “/” + go.name + “.prefab”, go); DestroyImmediate (go); }

public static string DataPathToAssetPath (string path) { if (Application.platform == RuntimePlatform.WindowsEditor) return path.Substring (path.IndexOf (“Assets\\”)); else return path.Substring (path.IndexOf (“Assets/”)); }

class AnimationClipSettings { SerializedProperty m_Property;

private SerializedProperty Get (string property) { return m_Property.FindPropertyRelative (property); }

public AnimationClipSettings (SerializedProperty prop) { m_Property = prop; }

public float startTime { get { return Get (“m_StartTime”).floatValue; } set { Get (“m_StartTime”).floatValue = value; } }

public float stopTime { get { return Get (“m_StopTime”).floatValue; } set { Get (“m_StopTime”).floatValue = value; } }

public float orientationOffsetY { get { return Get (“m_OrientationOffsetY”).floatValue; } set { Get (“m_OrientationOffsetY”).floatValue = value; } }

public float level { get { return Get (“m_Level”).floatValue; } set { Get (“m_Level”).floatValue = value; } }

public float cycleOffset { get { return Get (“m_CycleOffset”).floatValue; } set { Get (“m_CycleOffset”).floatValue = value; } }

public bool loopTime { get { return Get (“m_LoopTime”).boolValue; } set { Get (“m_LoopTime”).boolValue = value; } }

public bool loopBlend { get { return Get (“m_LoopBlend”).boolValue; } set { Get (“m_LoopBlend”).boolValue = value; } }

public bool loopBlendOrientation { get { return Get (“m_LoopBlendOrientation”).boolValue; } set { Get (“m_LoopBlendOrientation”).boolValue = value; } }

public bool loopBlendPositionY { get { return Get (“m_LoopBlendPositionY”).boolValue; } set { Get (“m_LoopBlendPositionY”).boolValue = value; } }

public bool loopBlendPositionXZ { get { return Get (“m_LoopBlendPositionXZ”).boolValue; } set { Get (“m_LoopBlendPositionXZ”).boolValue = value; } }

public bool keepOriginalOrientation { get { return Get (“m_KeepOriginalOrientation”).boolValue; } set { Get (“m_KeepOriginalOrientation”).boolValue = value; } }

public bool keepOriginalPositionY { get { return Get (“m_KeepOriginalPositionY”).boolValue; } set { Get (“m_KeepOriginalPositionY”).boolValue = value; } }

public bool keepOriginalPositionXZ { get { return Get (“m_KeepOriginalPositionXZ”).boolValue; } set { Get (“m_KeepOriginalPositionXZ”).boolValue = value; } }

public bool heightFromFeet { get { return Get (“m_HeightFromFeet”).boolValue; } set { Get (“m_HeightFromFeet”).boolValue = value; } }

public bool mirror { get { return Get (“m_Mirror”).boolValue; } set { Get (“m_Mirror”).boolValue = value; } } }

}