46 lines
1.3 KiB
GDScript
46 lines
1.3 KiB
GDScript
# ------------------------------------------------------------------------------
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# This datastructure represents a simple one-to-many relationship. It manages
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# a dictionary of value/array pairs. It ignores duplicates of both the "one"
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# and the "many". You can disable ignoring dupliates of the "many" via
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# ignore_many_dupes. This setting is not retroactive and will only affect
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# new calls to add.
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# ------------------------------------------------------------------------------
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var items = {}
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var ignore_many_dupes = true
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# return the size of items or the size of an element in items if "one" was
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# specified.
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func size(one=null):
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var to_return = 0
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if(one == null):
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to_return = items.size()
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elif(items.has(one)):
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to_return = items[one].size()
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return to_return
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# Add an element to "one" if it does not already exist
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func add(one, many_item):
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if(items.has(one)):
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if(!ignore_many_dupes or !items[one].has(many_item)):
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items[one].append(many_item)
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else:
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items[one] = [many_item]
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func clear():
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items.clear()
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func has(one, many_item):
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var to_return = false
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if(items.has(one)):
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to_return = items[one].has(many_item)
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return to_return
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func to_s():
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var to_return = ''
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for key in items:
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to_return += str(key, ": ", items[key], "\n")
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return to_return |