Fix snake animation by using original controller with state name overrides

Instead of replacing the Viper's animator controller (which broke bone
bindings for cross-FBX Generic animations), keep the original
Viper_anim_controller and add configurable state name overrides to
AnimalEffect. SnakeEffect now maps walk→glide and eat→hiss so the
Viper's native state names are used without controller replacement.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/csharp/net/eagle0/clients/unity/eagle0/Assets/Eagle/AnimalEffect.cs

@@ -27,6 +27,12 @@ namespace eagle {
                 "Per-prefab controller overrides (index matches animalPrefabs); takes priority over animatorController")]
         public RuntimeAnimatorController[] animatorControllers;
 
+        [Header("State Name Overrides")]
+        [Tooltip("Override walk state name for prefabs with non-standard names (e.g. 'glide')")]
+        public string walkStateName;
+        [Tooltip("Override eat state name for prefabs with non-standard names (e.g. 'hiss')")]
+        public string eatStateName;
+
         [Header("Behavior Timing")]
         public float minIdleDuration = 1f;
         public float maxIdleDuration = 3f;
@@ -53,7 +59,16 @@ namespace eagle {
         private static readonly int AttackHash = Animator.StringToHash("attack");
         private static readonly int DieHash = Animator.StringToHash("die");
 
-        void Start() { SpawnAnimals(); }
+        private int _walkHash;
+        private int _eatHash;
+
+        void Start() {
+            _walkHash = string.IsNullOrEmpty(walkStateName) ? WalkHash
+                                                            : Animator.StringToHash(walkStateName);
+            _eatHash = string.IsNullOrEmpty(eatStateName) ? EatHash
+                                                          : Animator.StringToHash(eatStateName);
+            SpawnAnimals();
+        }
 
         private void SpawnAnimals() {
             if (animalPrefabs == null || animalPrefabs.Length == 0) { return; }
@@ -177,7 +192,7 @@ namespace eagle {
 
             animal.targetPosition = RandomWanderPoint();
             animal.state = AnimalStateType.Walking;
-            if (animal.animator != null) { animal.animator.Play(WalkHash); }
+            if (animal.animator != null) { animal.animator.Play(_walkHash); }
 
             UpdateFacing(animal);
         }
@@ -196,7 +211,7 @@ namespace eagle {
                     animal.state = AnimalStateType.Action;
                     animal.timer = actionDuration;
                     if (animal.animator != null) {
-                        var actionHash = Random.value < 0.5f ? EatHash : AttackHash;
+                        var actionHash = Random.value < 0.5f ? _eatHash : AttackHash;
                         animal.animator.Play(actionHash);
                     }
                 } else {
@@ -233,10 +248,10 @@ namespace eagle {
         public void TestAllIdle() { ForEachAnimal(a => a.animator?.Play(IdleHash)); }
 
         [ContextMenu("Test: All Walk")]
-        public void TestAllWalk() { ForEachAnimal(a => a.animator?.Play(WalkHash)); }
+        public void TestAllWalk() { ForEachAnimal(a => a.animator?.Play(_walkHash)); }
 
         [ContextMenu("Test: All Eat")]
-        public void TestAllEat() { ForEachAnimal(a => a.animator?.Play(EatHash)); }
+        public void TestAllEat() { ForEachAnimal(a => a.animator?.Play(_eatHash)); }
 
         [ContextMenu("Test: All Attack")]
         public void TestAllAttack() { ForEachAnimal(a => a.animator?.Play(AttackHash)); }

src/main/csharp/net/eagle0/clients/unity/eagle0/Assets/Eagle/Effects/SnakeEffect.prefab

@@ -54,6 +54,8 @@ MonoBehaviour:
   wanderRadius: 25
   moveSpeed: 15
   animalScale: 15
+  walkStateName: glide
+  eatStateName: hiss
   minIdleDuration: 1
   maxIdleDuration: 3
   actionChance: 0.3