Dropping and picking up

Scripts/Components/FSM/Player/AutoPickupModule.cs

@@ -0,0 +1,66 @@
+using System.Linq;
+using Cirno.Scripts.Interactables;
+using Godot;
+
+namespace Cirno.Scripts.Components.FSM.Player;
+
+public partial class AutoPickupModule : PlayerArea2DModule
+{
+    private bool _enabled = false;
+
+    public bool Enabled
+    {
+        get => _enabled;
+        set
+        {
+            if (_enabled == value) return;
+            _enabled = value;
+            // if (_enabled)
+            // {
+            //     EmitSignal(SignalName.InteractionStarted);
+            // }
+        }
+    }
+    
+    public override void Init(IStateMachine<PlayerState, CharacterBody2D> machine)
+    {
+        base.Init(machine);
+    }
+
+    public override void EnterState(PlayerState state)
+    {
+        Enabled = true;
+        this.AreaEntered += _on_area_entered;
+    }
+
+    public override void ExitState(PlayerState state)
+    {
+        Enabled = false;
+        this.AreaEntered -= _on_area_entered;
+    }
+
+    public override void Process(double delta)
+    {
+
+    }
+
+    public override void PhysicsProcess(double delta)
+    {
+
+    }
+    
+    private void _on_area_entered(Area2D area)
+    {
+        if (!Enabled) return;
+        if (area is ItemPickup { AutoPickup: true } itemPickup)
+        {
+            //Check if items are not maxed to avoid a looping autopickup situation
+            var canAdd = itemPickup.LootTable.Aggregate(false, (current, item) => current || InventoryManager.Instance.CanAddItem(item.ItemKey));
+
+            if (canAdd)
+            {
+                itemPickup.Collect();
+            }
+        }
+    }
+}