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49 lines
2.2 KiB
XML
49 lines
2.2 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="PackedDataContainer" inherits="Resource" deprecated="Use [method @GlobalScope.var_to_bytes] or [method FileAccess.store_var] instead. To enable data compression, use [method PackedByteArray.compress] or [method FileAccess.open_compressed]." xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
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<brief_description>
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Efficiently packs and serializes [Array] or [Dictionary].
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</brief_description>
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<description>
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[PackedDataContainer] can be used to efficiently store data from untyped containers. The data is packed into raw bytes and can be saved to file. Only [Array] and [Dictionary] can be stored this way.
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You can retrieve the data by iterating on the container, which will work as if iterating on the packed data itself. If the packed container is a [Dictionary], the data can be retrieved by key names ([String]/[StringName] only).
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[codeblock]
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var data = { "key": "value", "another_key": 123, "lock": Vector2() }
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var packed = PackedDataContainer.new()
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packed.pack(data)
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ResourceSaver.save(packed, "packed_data.res")
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[/codeblock]
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[codeblock]
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var container = load("packed_data.res")
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for key in container:
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prints(key, container[key])
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[/codeblock]
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Prints:
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[codeblock lang=text]
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key value
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lock (0, 0)
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another_key 123
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[/codeblock]
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Nested containers will be packed recursively. While iterating, they will be returned as [PackedDataContainerRef].
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="pack">
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<return type="int" enum="Error" />
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<returns_error number="0"/>
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<returns_error number="30"/>
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<param index="0" name="value" type="Variant" />
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<description>
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Packs the given container into a binary representation. The [param value] must be either [Array] or [Dictionary], any other type will result in invalid data error.
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[b]Note:[/b] Subsequent calls to this method will overwrite the existing data.
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</description>
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</method>
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<method name="size" qualifiers="const">
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<return type="int" />
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<description>
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Returns the size of the packed container (see [method Array.size] and [method Dictionary.size]).
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</description>
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</method>
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</methods>
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</class>
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