Dynamically creating AnimatorController on http://kikki.hatenablog.com/entry/2015/07/01/210530

DynamicAniamotrControllerFactory

#if UNITY_EDITOR 
        AnimatorController mecanimController = null ;
         // Animation Controller 파일을 생성 
        mecanimController = UnityEditor.Animations.AnimatorController.CreateAnimatorControllerAtPath ( "Assets / Resources / Mecanims / HeroMecanim.controller" );
         // Animation Controller에 애니메이션을 전환시키기위한 조건이되는 매개 변수를 추가 
        mecanimController.AddParameter ( "RunTrigger" , AnimatorControllerParameterType.Trigger);
        mecanimController.AddParameter ( "JumpTrigger" , AnimatorControllerParameterType.Trigger);
        mecanimController.AddParameter ( "SlidingTrigger" , AnimatorControllerParameterType.Trigger);
        mecanimController.AddParameter ( "DownTrigger" , AnimatorControllerParameterType.Trigger);

        // root의 State Machine을 취득 
        var rootStateMachine = mecanimController.layers [ 0 ] .stateMachine;
         // "Entry State '과'Any State '의 위치 좌표를 변경 
        rootStateMachine.entryPosition = new Vector3 ( 0f , 0f , 0f );
        rootStateMachine.anyStatePosition = new Vector3 ( 0f , 50f , 0f );

        // 각 애니메이션 State Machine을 만들어서 배치 
        var runState = rootStateMachine.AddState ( "runState" , new Vector3 ( 200f , 0f , 0f ));
        mecanimController.SetStateEffectiveMotion (runState (Motion) Resources.Load <AnimationClip> ( "AnimationClips / hero_run" ));
        var jumpState = rootStateMachine.AddState ( "jumpState" , new Vector3 ( 200f , 100f , 0f ));
        mecanimController.SetStateEffectiveMotion (jumpState (Motion) Resources.Load <AnimationClip> ( "AnimationClips / hero_jump" ));
        var slidingState = rootStateMachine.AddState ( "slidingState" , new Vector3 ( 200f , 200f , 0f ));
        mecanimController.SetStateEffectiveMotion (slidingState (Motion) Resources.Load <AnimationClip> ( "AnimationClips / hero_sliding" ));
        var downState = rootStateMachine.AddState ( "downState" , new Vector3 ( 200f , 300f , 0 ));
        mecanimController.SetStateEffectiveMotion (downState (Motion) Resources.Load <AnimationClip> ( "AnimationClips / hero_down" ));

        // 애니메이션의 전환 조건을 설정 
        runState.AddTransition (jumpState) .AddCondition (AnimatorConditionMode.If, 0 , "JumpTrigger" );
        runState.AddTransition (slidingState) .AddCondition (AnimatorConditionMode.If, 0 , "SlidingTrigger" );
        runState.AddTransition (downState) .AddCondition (AnimatorConditionMode.If, 0 , "DownTrigger" );
        jumpState.AddTransition (runState) .AddCondition (AnimatorConditionMode.If, 0 , "RunTrigger" );
        jumpState.AddTransition (downState) .AddCondition (AnimatorConditionMode.If, 0 , "DownTrigger" );
        slidingState.AddTransition (runState) .AddCondition (AnimatorConditionMode.If, 0 , "RunTrigger" );
        slidingState.AddTransition (downState) .AddCondition (AnimatorConditionMode.If, 0 , "DownTrigger" );
        downState.AddTransition (runState) .AddCondition (AnimatorConditionMode.If, 0 , "RunTrigger" );
 #else 
        // Unity의 Editor 환경이 아닌 경우, Resource 폴더에서 Animation Controller를 취득 
        RuntimeAnimatorController mecanimController = Resources.Load <RuntimeAnimatorController> ( "Mecanims / HeroMecanim " );
 #endif

        // Animator이 설정되어있는 객체를 가져 
        this .heroAnimator = gameObject.GetComponent <Animator> ();

#if UNITY_EDITOR 
        // 위에서 만든 Animation Controller를 Animator의 runtimeAnimatorController로 설정 
        this .heroAnimator.runtimeAnimatorController = new AnimatorOverrideController () {runtimeAnimatorController = (RuntimeAnimatorController) mecanimController};
 #else 
        // 위에서 얻은 Animation Controller를 Animator의 runtimeAnimatorController 설정 
        this .heroAnimator.runtimeAnimatorController = new AnimatorOverrideController () {runtimeAnimatorController = mecanimController};
 #endif