132 lines
3.3 KiB
GDScript
132 lines
3.3 KiB
GDScript
extends Resource
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class_name Inventory
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signal updated(inventory: Inventory)
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@export var items: Array[Item] = []
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@export var current_item_ind: int = 0 # over both tools and items
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@export var n_tools: int = 0
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func _init(inventory_size: int = 1):
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set_size(inventory_size)
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func get_n_item_slots() -> int:
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return items.size() - n_tools
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func set_size(new_size: int):
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if new_size >= 0:
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items.resize(n_tools + new_size)
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updated.emit(self )
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func change_size(size_mod: int):
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set_size(items.size() - n_tools + size_mod)
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func current_is_tool() -> bool:
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return current_item_ind >= 0 && current_item_ind < n_tools
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func get_best_available_slot_ind():
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if !current_is_tool() && items[current_item_ind] == null:
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return current_item_ind
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for i in range(n_tools, items.size()):
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if items[i] == null:
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return i
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# it's full
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if !current_is_tool():
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return current_item_ind
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else:
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return n_tools
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func set_current_item(new_ind: int):
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if new_ind >= items.size():
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return
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if new_ind != current_item_ind:
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current_item_ind = new_ind
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updated.emit(self )
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func change_current_item(ind_mod: int):
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if items.size() == 0:
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current_item_ind = 0
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return
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var new_ind: int = current_item_ind + ind_mod
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new_ind = new_ind % items.size()
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if new_ind < 0:
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new_ind += items.size()
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set_current_item(new_ind)
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func add_item(item: Item) -> bool:
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if item.type != Item.ItemType.TOOL_ITEM:
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var best_ind = get_best_available_slot_ind()
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return set_item(item, best_ind)
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elif item.type == Item.ItemType.TOOL_ITEM && !items.has(item):
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items.insert(n_tools, item)
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if current_item_ind >= n_tools:
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current_item_ind += 1
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n_tools += 1
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updated.emit(self )
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return true
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else:
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return false
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func set_item(item: Item, ind: int = 0) -> bool:
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if ind < 0 || ind >= items.size():
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return false
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items[ind] = item
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updated.emit(self )
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return true
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func get_item(ind: int = current_item_ind) -> Item:
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if ind < 0 || ind > items.size():
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return null
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return items[ind]
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func has_item(item: Item) -> bool:
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return items.has(item)
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func remove_item(item: Item):
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if item.type == Item.ItemType.TOOL_ITEM:
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printerr("trying to remove a tool")
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else:
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var ind = items.find(item)
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if ind >= 0:
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items[ind] = null
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updated.emit(self )
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func remove_item_at(ind: int = current_item_ind):
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if ind < 0 || ind > items.size():
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return
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if ind < n_tools:
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printerr("trying to remove a tool")
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return
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items[ind] = null
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updated.emit(self )
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func remove_current_item():
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remove_item_at()
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func pop_item(ind: int = current_item_ind) -> Item:
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if ind < 0 || ind > items.size():
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return
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if ind < n_tools:
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printerr("trying to remove a tool")
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return
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var item_removed: Item = items[ind]
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items[ind] = null
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updated.emit(self )
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return item_removed
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func is_full():
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for i in range(n_tools, items.size()):
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if items[i] == null:
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return false
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return true
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func clear_items():
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for i in range(n_tools, items.size()):
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items[i] = null
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updated.emit(self )
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