Add Cooler, Bag, and compact hotbar systems

items/catalog/basic_fishing_rod.tres

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+[gd_resource type="Resource" script_class="ItemData" load_steps=4 format=3]
+
+[ext_resource type="Script" path="res://items/item_data.gd" id="1_script"]
+
+[sub_resource type="Gradient" id="Gradient_rod"]
+colors = PackedColorArray(0.302, 0.184, 0.11, 1, 0.957, 0.827, 0.369, 1, 0.439, 0.839, 0.82, 1)
+
+[sub_resource type="GradientTexture2D" id="GradientTexture_rod"]
+gradient = SubResource("Gradient_rod")
+width = 128
+height = 128
+fill_from = Vector2(0.15, 0.85)
+fill_to = Vector2(0.85, 0.15)
+
+[resource]
+script = ExtResource("1_script")
+item_id = &"basic_fishing_rod"
+display_name = "Basic Fishing Rod"
+description = "A dependable starter rod. Select it to cast."
+category = 0
+icon = SubResource("GradientTexture_rod")
+stackable = false
+max_stack = 1
+usable = true
+equippable = true
+hotbar_allowed = true

items/catalog/item_catalog.tres

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+[gd_resource type="Resource" script_class="ItemCatalog" load_steps=3 format=3]
+
+[ext_resource type="Script" path="res://items/item_catalog.gd" id="1_script"]
+[ext_resource type="Resource" path="res://items/catalog/basic_fishing_rod.tres" id="2_rod"]
+
+[resource]
+script = ExtResource("1_script")
+items = [ExtResource("2_rod")]

items/item_catalog.gd

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+class_name ItemCatalog
+extends Resource
+
+const ItemDataType = preload("res://items/item_data.gd")
+
+@export var items: Array[ItemDataType] = []
+
+
+func get_item_by_id(item_id: StringName) -> ItemDataType:
+	if item_id.is_empty():
+		return null
+	for item: ItemDataType in items:
+		if item != null and item.item_id == item_id:
+			return item
+	return null
+
+
+func get_valid_items() -> Array[ItemDataType]:
+	var result: Array[ItemDataType] = []
+	var seen: Dictionary[StringName, bool] = {}
+	for item: ItemDataType in items:
+		if (
+			item == null
+			or not item.is_valid()
+			or seen.has(item.item_id)
+		):
+			continue
+		seen[item.item_id] = true
+		result.append(item)
+	return result

items/item_catalog.gd.uid

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+uid://citlop0eiu8rx

items/item_data.gd

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+class_name ItemData
+extends Resource
+
+enum Category {
+	ROD,
+	TOOL,
+	BAIT,
+	CONSUMABLE,
+	UTILITY,
+	QUEST,
+	COSMETIC,
+}
+
+@export var item_id: StringName
+@export var display_name: String
+@export_multiline var description: String
+@export var category: Category = Category.UTILITY
+@export var icon: Texture2D
+@export var stackable: bool = false
+@export_range(1, 999, 1) var max_stack: int = 1
+@export var usable: bool = false
+@export var equippable: bool = false
+@export var hotbar_allowed: bool = false
+
+
+func is_valid() -> bool:
+	return (
+		not item_id.is_empty()
+		and not display_name.strip_edges().is_empty()
+		and max_stack >= 1
+		and (stackable or max_stack == 1)
+	)
+
+
+func get_category_name() -> String:
+	return Category.keys()[category].capitalize()

items/item_data.gd.uid

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+uid://cah5thda5aohb

items/owned_item.gd

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+class_name OwnedItem
+extends Resource
+
+@export var item_id: StringName
+@export var quantity: int = 1
+
+
+func is_valid() -> bool:
+	return not item_id.is_empty() and quantity > 0
+
+
+func duplicate_record():
+	return duplicate(true)
+
+
+func to_save_dict() -> Dictionary:
+	return {
+		"item_id": String(item_id),
+		"quantity": quantity,
+	}

items/owned_item.gd.uid

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+uid://c7julskwitfxi