[Interactions] Pulver now swaps, slots and combines items

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Assets/External/Placeholders/PlaceholderCreditList.txt

@@ -2,3 +2,4 @@ https://joszs.itch.io/medieval-item-pack
 https://arongranberg.com/astar/ <- Free version
 assetstore.unity.com/packages/2d/fonts/fatality-fps-gaming-font-216954 <- for some debug stuff
 https://craftpix.net/freebies/free-top-down-animals-farm-pixel-art-sprites/ <- placeholder sprites
+https://bonvicio.itch.io/pixel-art-bonfire

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Assets/Scripts/FollowerController.cs

@@ -276,6 +276,12 @@ public class FollowerController : MonoBehaviour
                 var pickup = hit.GetComponent<Pickup>();
                 if (pickup != null)
                 {
+                    var slotBehavior = pickup.GetComponent<SlotItemBehavior>();
+                    if (slotBehavior != null)
+                    {
+                        // Slot item: do not destroy or swap, just return to player
+                        break;
+                    }
                     if (justCombined)
                     {
                         // Combination: just destroy the pickup, don't spawn anything

Assets/Scripts/GameManager.cs

@@ -57,5 +57,16 @@ public class GameManager : MonoBehaviour
         }
         return null;
     }
+
+    public GameSettings.SlotItemConfig GetSlotItemConfig(PickupItemData slotItem)
+    {
+        if (gameSettings == null || gameSettings.slotItemConfigs == null || slotItem == null) return null;
+        foreach (var config in gameSettings.slotItemConfigs)
+        {
+            if (config.slotItem == slotItem)
+                return config;
+        }
+        return null;
+    }
     // Add more accessors as needed
 }

Assets/Scripts/GameSettings.cs

@@ -35,8 +35,16 @@ public class GameSettings : ScriptableObject
         public PickupItemData result;
     }
 
-    [Header("Combination Rules")]
+    [System.Serializable]
+    public class SlotItemConfig {
+        public PickupItemData slotItem; // The slot object (SO reference)
+        public System.Collections.Generic.List<PickupItemData> allowedItems;
+        public System.Collections.Generic.List<PickupItemData> forbiddenItems;
+    }
+
+    [Header("Item Configuration")]
     public System.Collections.Generic.List<CombinationRule> combinationRules;
+    public System.Collections.Generic.List<SlotItemConfig> slotItemConfigs;
 
     // Singleton pattern
     private static GameSettings _instance;

Assets/Scripts/Pickup.cs

@@ -127,6 +127,15 @@ public class Pickup : MonoBehaviour
         playerController.OnArrivedAtTarget += OnPlayerArrived;
         playerController.OnMoveToCancelled += OnPlayerMoveCancelled;
         Vector3 stopPoint = transform.position + (playerObj.transform.position - transform.position).normalized * playerStopDistance;
-        playerController.MoveToAndNotify(stopPoint);
+        float dist = Vector2.Distance(new Vector2(playerObj.transform.position.x, playerObj.transform.position.y), new Vector2(stopPoint.x, stopPoint.y));
+        if (dist <= 0.2f)
+        {
+            // Already within stop range, trigger arrival logic immediately
+            OnPlayerArrived();
+        }
+        else
+        {
+            playerController.MoveToAndNotify(stopPoint);
+        }
     }
 }

Assets/Scripts/SlotItemBehavior.cs

@@ -0,0 +1,96 @@
+using UnityEngine;
+using UnityEngine.Events;
+using System.Collections.Generic;
+
+[RequireComponent(typeof(Interactable))]
+[RequireComponent(typeof(Pickup))]
+public class SlotItemBehavior : InteractionRequirementBase
+{
+    [Header("Slot State")]
+    public PickupItemData currentlySlottedItem;
+    public SpriteRenderer slottedItemRenderer;
+
+    public override bool TryInteract(FollowerController follower)
+    {
+        var heldItem = follower.currentlyHeldItem;
+        var pickup = GetComponent<Pickup>();
+        var slotItem = pickup != null ? pickup.itemData : null;
+        var config = GameManager.Instance.GetSlotItemConfig(slotItem);
+        var allowed = config?.allowedItems ?? new List<PickupItemData>();
+        var forbidden = config?.forbiddenItems ?? new List<PickupItemData>();
+
+        // CASE 1: No held item, slot has item -> pick up slotted item
+        if (heldItem == null && currentlySlottedItem != null)
+        {
+            follower.SetHeldItem(currentlySlottedItem);
+            currentlySlottedItem = null;
+            UpdateSlottedSprite();
+            return true;
+        }
+        // CASE 2: Held item, slot has item -> swap
+        if (heldItem != null && currentlySlottedItem != null)
+        {
+            var temp = currentlySlottedItem;
+            currentlySlottedItem = heldItem;
+            UpdateSlottedSprite();
+            follower.SetHeldItem(temp);
+            return true;
+        }
+        // CASE 3: Held item, slot empty -> slot the held item
+        if (heldItem != null && currentlySlottedItem == null)
+        {
+            if (forbidden.Contains(heldItem))
+            {
+                DebugUIMessage.Show("Can't place that here.");
+                return false;
+            }
+            currentlySlottedItem = heldItem;
+            UpdateSlottedSprite();
+            follower.SetHeldItem(null);
+            if (allowed.Contains(heldItem))
+            {
+                OnSuccess?.Invoke();
+                return true;
+            }
+            else
+            {
+                DebugUIMessage.Show("I'm not sure this works.");
+                OnFailure?.Invoke();
+                return true;
+            }
+        }
+        // CASE 4: No held item, slot empty -> show warning
+        if (heldItem == null && currentlySlottedItem == null)
+        {
+            DebugUIMessage.Show("This requires an item.");
+            return false;
+        }
+        return false;
+    }
+
+    private void UpdateSlottedSprite()
+    {
+        if (slottedItemRenderer != null && currentlySlottedItem != null && currentlySlottedItem.mapSprite != null)
+        {
+            slottedItemRenderer.sprite = currentlySlottedItem.mapSprite;
+            // Scale sprite to desired height, preserve aspect ratio, compensate for parent scale
+            float desiredHeight = GameManager.Instance.HeldIconDisplayHeight;
+            var sprite = currentlySlottedItem.mapSprite;
+            float spriteHeight = sprite.bounds.size.y;
+            float spriteWidth = sprite.bounds.size.x;
+            Vector3 parentScale = slottedItemRenderer.transform.parent != null
+                ? slottedItemRenderer.transform.parent.localScale
+                : Vector3.one;
+            if (spriteHeight > 0f)
+            {
+                float uniformScale = desiredHeight / spriteHeight;
+                float scale = uniformScale / Mathf.Max(parentScale.x, parentScale.y);
+                slottedItemRenderer.transform.localScale = new Vector3(scale, scale, 1f);
+            }
+        }
+        else if (slottedItemRenderer != null)
+        {
+            slottedItemRenderer.sprite = null;
+        }
+    }
+}

Assets/Scripts/SlotItemBehavior.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: ec1a2e6e32f746c4990c579e13b79104
+timeCreated: 1756985692