Add AacFlState.PlayableEnables(...), PlayableDisables, and PlayableSets:

- Add AacFlState.PlayableEnables(...) with 0-duration default overload.
  This function is exposed with the assumption that Playable Layer Control would often be used with a all-or-nothing weight.
- Add AacFlState.PlayableDisables(...) with 0-duration default overload.
- Add AacFlState.PlayableSets(...) to control everything about the behaviour.

Framework/Editor/V0/AacFlStates.cs

@@ -508,6 +508,26 @@ namespace AnimatorAsCode.V0
             return this;
         }
 
+        public AacFlState PlayableEnables(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds = 0f)
+        {
+            return PlayableSets(blendable, blendDurationSeconds, 1.0f);
+        }
+
+        public AacFlState PlayableDisables(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds = 0f)
+        {
+            return PlayableSets(blendable, blendDurationSeconds, 0.0f);
+        }
+
+        public AacFlState PlayableSets(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds, float weight)
+        {
+            var playable = State.AddStateMachineBehaviour<VRCPlayableLayerControl>();
+            playable.layer = blendable;
+            playable.goalWeight = weight;
+            playable.blendDuration = blendDurationSeconds;
+
+            return this;
+        }
+
         public AacFlState MotionTime(AacFlFloatParameter floatParam)
         {
             State.timeParameterActive = true;

README.md

@@ -701,6 +701,11 @@ foreach (var cancelWhenNotAllowed in new[] {auto, reverse, manual, custom, done}
 - `AacFlState TrackingSets(TrackingElement element, VRC_AnimatorTrackingControl.TrackingType trackingType)` /// Use an Animator Tracking Control to set the element to be the value of `trackingType`. Create an Animator Tracking Control state behaviour if it does not exist.
 - `AacFlState LocomotionEnabled()` /// Enable locomotion. Create an Animator Locomotion Control if it does not exist.
 - `AacFlState LocomotionDisabled()` /// Disable locomotion. Create an Animator Locomotion Control if it does not exist.
+- `public AacFlState PlayableEnables(VRC_PlayableLayerControl.BlendableLayer blendable)` /// Use a Playable Layer Control to set the playable layer weight to 1, enabling it immediately. Create an Playable Layer Control no matter what.
+- `public AacFlState PlayableDisables(VRC_PlayableLayerControl.BlendableLayer blendable)` /// Use a Playable Layer Control to set the playable layer weight to 0, disabling it immediately. Create an Playable Layer Control no matter what.
+- `public AacFlState PlayableEnables(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds)` /// Use a Playable Layer Control to set the playable layer weight to 1, blending it over a duration, enabling it. Create an Playable Layer Control no matter what.
+- `public AacFlState PlayableDisables(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds)` /// Use a Playable Layer Control to set the playable layer weight to 0, blending it over a duration, disabling it. Create an Playable Layer Control no matter what.
+- `public AacFlState PlayableSets(VRC_PlayableLayerControl.BlendableLayer blendable, float blendDurationSeconds, float weight)` /// Use a Playable Layer Control to set the playable layer weight to a specified value, blending it over a duration. Create an Playable Layer Control no matter what.
 
 # Clip (AacFlClip)