FSM Test

Scripts/Components/FSM/ActorStateMachine.cs

@@ -0,0 +1,44 @@
+using Godot;
+using Godot.Collections;
+
+namespace Cirno.Scripts.Components.FSM;
+
+public partial class ActorStateMachine : Node2D
+{
+    public Dictionary<int, State> States { get; private set; } = new();
+
+    private int _currentStateIndex = 0;
+
+    public State CurrentState => States[_currentStateIndex];
+
+    public override void _Ready()
+    {
+        var children = GetChildren();
+
+        foreach (var child in children)
+        {
+            if (child is State state)
+            {
+                States.Add(state.StateId, state);
+                state.Init(this);
+            }
+        }
+    }
+
+    public void SetState(int stateId)
+    {
+        CurrentState.ExitState();
+        _currentStateIndex = stateId;
+        CurrentState.EnterState();
+    }
+
+    public override void _Process(double delta)
+    {
+        CurrentState.ProcessState(delta);
+    }
+
+    public override void _PhysicsProcess(double delta)
+    {
+        CurrentState.PhysicsProcessState(delta);
+    }
+}