43 lines
1.1 KiB
GDScript
43 lines
1.1 KiB
GDScript
class_name PropInventory extends Resource
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signal current_item_changed(prop_key: String)
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# prop_空手 默认就存在，并且不可删除
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@export var enabled_items := ["prop_空手"]
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@export var current_index := 0:
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set(val):
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if current_index != val:
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val = wrapi(val, 0, enabled_items.size())
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current_index = val
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if enabled_items.size() > 0:
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current_item_changed.emit(enabled_items[current_index])
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else:
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current_item_changed.emit("")
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func current_item_key():
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if enabled_items.size() == 0:
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return null
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return enabled_items[current_index]
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func enable_item(prop_key: String) -> void:
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if not enabled_items.has(prop_key):
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enabled_items.append(prop_key)
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# 新增后直接选中
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current_index = enabled_items.find(prop_key)
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func disable_item(prop_key: String) -> void:
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# if enabled_items.has(prop_key):
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enabled_items.erase(prop_key)
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# wrap index
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current_index = wrapi(current_index, 0, enabled_items.size())
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# return true if the index changed
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func index_wrap_add(delta: int) -> bool:
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# auto wrapped in setter
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current_index += delta
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return not enabled_items.is_empty()
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