chore: initial commit

Packages/com.kybernetik.animancer/Runtime/Utilities/FSM/DelegateState.cs

@@ -0,0 +1,52 @@
+// Animancer // https://kybernetik.com.au/animancer // Copyright 2018-2026 Kybernetik //
+
+using System;
+
+namespace Animancer.FSM
+{
+    /// <summary>An <see cref="IState"/> that uses delegates to define its behaviour.</summary>
+    /// <remarks>
+    /// <strong>Documentation:</strong>
+    /// <see href="https://kybernetik.com.au/animancer/docs/manual/fsm/state-types">
+    /// State Types</see>
+    /// </remarks>
+    /// https://kybernetik.com.au/animancer/api/Animancer.FSM/DelegateState
+    /// 
+    public class DelegateState : IState
+    {
+        /************************************************************************************************************************/
+
+        /// <summary>Determines whether this state can be entered. Null is treated as returning true.</summary>
+        public Func<bool> canEnter;
+
+        /// <summary>[<see cref="IState"/>] Calls <see cref="canEnter"/> to determine whether this state can be entered.</summary>
+        public virtual bool CanEnterState => canEnter == null || canEnter();
+
+        /************************************************************************************************************************/
+
+        /// <summary>Determines whether this state can be exited. Null is treated as returning true.</summary>
+        public Func<bool> canExit;
+
+        /// <summary>[<see cref="IState"/>] Calls <see cref="canExit"/> to determine whether this state can be exited.</summary>
+        public virtual bool CanExitState => canExit == null || canExit();
+
+        /************************************************************************************************************************/
+
+        /// <summary>Called when this state is entered.</summary>
+        public Action onEnter;
+
+        /// <summary>[<see cref="IState"/>] Calls <see cref="onEnter"/> when this state is entered.</summary>
+        public virtual void OnEnterState() => onEnter?.Invoke();
+
+        /************************************************************************************************************************/
+
+        /// <summary>Called when this state is exited.</summary>
+        public Action onExit;
+
+        /// <summary>[<see cref="IState"/>] Calls <see cref="onExit"/> when this state is exited.</summary>
+        public virtual void OnExitState() => onExit?.Invoke();
+
+        /************************************************************************************************************************/
+    }
+}
+