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104 lines
3.3 KiB
104 lines
3.3 KiB
class_name Inventory
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extends Control
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@export var inventory_resource: InventoryResource
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@export var item_rect_scene: PackedScene
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@export var grid_container: GridContainer
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@export var max_items: int = 40 # 4 rows of 10
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@export var highlight_theme: Resource
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var selected_item: int = 0
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func _input(event: InputEvent) -> void:
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if event.is_action_pressed("open_inventory"):
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toggle_inventory()
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func _ready() -> void:
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InventoryManager.item_picked_up.connect(_on_item_picked_up)
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InventoryManager.item_dropped.connect(_on_item_dropped)
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InventoryManager.add_to_inventory.connect(_on_add_to_inventory)
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InventoryManager.remove_from_inventory.connect(_on_remove_from_inventory)
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generate_inventory_grid()
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func add_item(item_resource: DBItemResource, amount: int = 1) -> void:
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var item_rect: InventoryItemRect = find_item_rect(item_resource)
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if item_rect != null:
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if item_rect.item_resource.amount + item_resource.amount >= inventory_resource.max_stack_size:
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item_rect.on_stack_full(true)
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return
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item_rect.item_resource.amount += item_resource.amount
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item_rect.update_rect()
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else:
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item_rect = item_rect_scene.instantiate()
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grid_container.add_child(item_rect)
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item_rect.init(item_resource, highlight_theme)
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func find_item_rect(item_resource: DBItemResource) -> InventoryItemRect:
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var rect: InventoryItemRect = null
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for container: InventoryItemRect in grid_container.get_children():
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if container.item_resource.id == item_resource.id:
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rect = container
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break
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return rect
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func generate_inventory_grid() -> void:
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for item: InventoryItemRect in grid_container.get_children():
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item.queue_free()
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# Add any items from the existing inventory resource
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for item_resource: DBItemResource in inventory_resource.inventory:
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InventoryManager.add_to_inventory.emit(item_resource.id, item_resource.amount)
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var empty_cells: int = max_items - inventory_resource.inventory.size()
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# Add empty item cells
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for _i: int in range(empty_cells):
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var item_rect: InventoryItemRect = item_rect_scene.instantiate()
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grid_container.add_child(item_rect)
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item_rect.clear_rect()
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func subtract_item(item_resource: DBItemResource, amount: int =1) -> void:
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var item_rect: InventoryItemRect = find_item_rect(item_resource)
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if item_rect != null:
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if item_rect.item_resource.amount >= inventory_resource.max_stack_size:
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item_rect.on_stack_full(false)
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item_rect.item_resource.amount -= amount
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item_rect.update_rect()
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if item_rect.item_resource.amount < 1: # Empty stack
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item_rect.queue_free()
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else:
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push_error("Attempting to subtract amount (" + str(amount) + " from nonexistent inventory item (" + str(item_resource.name) + ")")
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func toggle_inventory() -> void:
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visible = not visible
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if visible:
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Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
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InventoryManager.inventory_opened.emit()
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get_tree().paused = true
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else:
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Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
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InventoryManager.inventory_closed.emit()
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get_tree().paused = false
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func _on_add_to_inventory(item_id: String, amount: int) -> void:
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add_item(DBItems.data[item_id], amount)
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func _on_remove_from_inventory(item_id: String, amount: int) -> void:
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subtract_item(DBItems.data[item_id], amount)
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func _on_item_picked_up(item_resource: DBItemResource, amount: int) -> void:
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add_item(item_resource, amount)
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func _on_item_dropped(item_resource: DBItemResource) -> void:
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subtract_item(item_resource, 1)
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