mirror of
https://github.com/godotengine/godot.git
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393 lines
12 KiB
XML
393 lines
12 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="Object" category="Core" version="3.0.alpha.custom_build">
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<brief_description>
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Base class for all non built-in types.
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</brief_description>
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<description>
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Base class for all non built-in types. Everything not a built-in type starts the inheritance chain from this class.
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Objects do not manage memory, if inheriting from one the object will most likely have to be deleted manually (call the [method free] function from the script or delete from C++).
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Some derivates add memory management, such as [Reference] (which keeps a reference count and deletes itself automatically when no longer referenced) and [Node], which deletes the children tree when deleted.
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Objects export properties, which are mainly useful for storage and editing, but not really so much in programming. Properties are exported in [method _get_property_list] and handled in [method _get] and [method _set]. However, scripting languages and C++ have simpler means to export them.
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Objects also receive notifications ([method _notification]). Notifications are a simple way to notify the object about simple events, so they can all be handled together.
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</description>
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<tutorials>
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</tutorials>
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<demos>
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</demos>
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<methods>
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<method name="_get" qualifiers="virtual">
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<return type="void">
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</return>
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<argument index="0" name="property" type="String">
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</argument>
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<description>
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Return a property, return null if the property does not exist.
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</description>
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</method>
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<method name="_get_property_list" qualifiers="virtual">
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<return type="Array">
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</return>
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<description>
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Return the property list, array of dictionaries, dictionaries must contain: name:String, type:int (see TYPE_* enum in [@Global Scope]) and optionally: hint:int (see PROPERTY_HINT_* in [@Global Scope]), hint_string:String, usage:int (see PROPERTY_USAGE_* in [@Global Scope]).
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</description>
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</method>
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<method name="_init" qualifiers="virtual">
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<return type="void">
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</return>
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<description>
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</description>
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</method>
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<method name="_notification" qualifiers="virtual">
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<return type="void">
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</return>
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<argument index="0" name="what" type="int">
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</argument>
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<description>
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Notification request, the notification id is received.
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</description>
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</method>
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<method name="_set" qualifiers="virtual">
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<return type="bool">
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</return>
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<argument index="0" name="property" type="String">
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</argument>
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<argument index="1" name="value" type="Variant">
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</argument>
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<description>
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Set a property. Return true if the property was found.
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</description>
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</method>
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<method name="add_user_signal">
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<return type="void">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<argument index="1" name="arguments" type="Array" default="[ ]">
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</argument>
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<description>
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Add a user signal (can be added anytime). Arguments are optional, but can be added as an array of dictionaries, each containing "name" and "type" (from [@Global Scope] TYPE_*).
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</description>
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</method>
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<method name="call" qualifiers="vararg">
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<return type="Variant">
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</return>
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<argument index="0" name="method" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="call_deferred" qualifiers="vararg">
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<return type="Variant">
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</return>
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<argument index="0" name="method" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="callv">
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<return type="Variant">
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</return>
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<argument index="0" name="method" type="String">
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</argument>
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<argument index="1" name="arg_array" type="Array">
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</argument>
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<description>
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</description>
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</method>
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<method name="can_translate_messages" qualifiers="const">
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<return type="bool">
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</return>
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<description>
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Return true if this object can translate strings.
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</description>
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</method>
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<method name="connect">
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<return type="int" enum="Error">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<argument index="1" name="target" type="Object">
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</argument>
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<argument index="2" name="method" type="String">
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</argument>
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<argument index="3" name="binds" type="Array" default="[ ]">
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</argument>
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<argument index="4" name="flags" type="int" default="0">
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</argument>
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<description>
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Connect a signal to a method at a target (member function). Binds are optional and are passed as extra arguments to the call. Flags specify optional deferred or one shot connections, see enum CONNECT_*. A signal can only be connected once to a method, and it will throw an error if already connected. If you want to avoid this, use [method is_connected] to check.
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</description>
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</method>
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<method name="disconnect">
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<return type="void">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<argument index="1" name="target" type="Object">
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</argument>
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<argument index="2" name="method" type="String">
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</argument>
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<description>
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Disconnect a signal from a method.
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</description>
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</method>
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<method name="emit_signal" qualifiers="vararg">
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<return type="Variant">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="free">
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<return type="void">
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</return>
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<description>
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</description>
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</method>
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<method name="get" qualifiers="const">
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<return type="Variant">
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</return>
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<argument index="0" name="property" type="String">
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</argument>
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<description>
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Get a property from the object.
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</description>
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</method>
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<method name="get_class" qualifiers="const">
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<return type="String">
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</return>
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<description>
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Return the class of the object as a string.
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</description>
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</method>
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<method name="get_incoming_connections" qualifiers="const">
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<return type="Array">
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</return>
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<description>
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Returns an [Array] of dictionaries with informations about signals that are connected to this object.
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Inside each [Dictionary] there are 3 fields:
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- "source" is a reference to signal emitter.
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- "signal_name" is name of connected signal.
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- "method_name" is a name of method to which signal is connected.
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</description>
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</method>
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<method name="get_instance_id" qualifiers="const">
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<return type="int">
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</return>
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<description>
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Return the instance ID. All objects have a unique instance ID.
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</description>
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</method>
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<method name="get_meta" qualifiers="const">
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<return type="Variant">
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</return>
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<argument index="0" name="name" type="String">
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</argument>
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<description>
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Return a metadata from the object.
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</description>
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</method>
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<method name="get_meta_list" qualifiers="const">
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<return type="PoolStringArray">
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</return>
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<description>
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Return the list of metadata in the object.
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</description>
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</method>
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<method name="get_method_list" qualifiers="const">
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<return type="Array">
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</return>
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<description>
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</description>
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</method>
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<method name="get_property_list" qualifiers="const">
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<return type="Array">
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</return>
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<description>
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Return the list of properties as an array of dictionaries, dictionaries contain: name:String, type:int (see TYPE_* enum in [@Global Scope]) and optionally: hint:int (see PROPERTY_HINT_* in [@Global Scope]), hint_string:String, usage:int (see PROPERTY_USAGE_* in [@Global Scope]).
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</description>
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</method>
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<method name="get_script" qualifiers="const">
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<return type="Reference">
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</return>
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<description>
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Return the object script (or null if it doesn't have one).
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</description>
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</method>
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<method name="get_signal_connection_list" qualifiers="const">
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<return type="Array">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="get_signal_list" qualifiers="const">
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<return type="Array">
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</return>
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<description>
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Return the list of signals as an array of dictionaries.
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</description>
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</method>
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<method name="has_meta" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="name" type="String">
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</argument>
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<description>
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Return true if a metadata is found with the requested name.
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</description>
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</method>
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<method name="has_method" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="method" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="has_user_signal" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<description>
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</description>
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</method>
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<method name="is_blocking_signals" qualifiers="const">
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<return type="bool">
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</return>
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<description>
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Return true if signal emission blocking is enabled.
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</description>
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</method>
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<method name="is_class" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="type" type="String">
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</argument>
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<description>
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Check the class of the object against a string (including inheritance).
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</description>
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</method>
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<method name="is_connected" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="signal" type="String">
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</argument>
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<argument index="1" name="target" type="Object">
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</argument>
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<argument index="2" name="method" type="String">
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</argument>
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<description>
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Return true if a connection exists for a given signal and target/method.
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</description>
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</method>
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<method name="is_queued_for_deletion" qualifiers="const">
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<return type="bool">
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</return>
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<description>
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</description>
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</method>
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<method name="notification">
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<return type="void">
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</return>
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<argument index="0" name="what" type="int">
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</argument>
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<argument index="1" name="reversed" type="bool" default="false">
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</argument>
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<description>
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Notify the object of something.
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</description>
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</method>
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<method name="property_list_changed_notify">
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<return type="void">
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</return>
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<description>
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</description>
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</method>
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<method name="set">
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<return type="void">
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</return>
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<argument index="0" name="property" type="String">
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</argument>
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<argument index="1" name="value" type="Variant">
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</argument>
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<description>
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Set property into the object.
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</description>
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</method>
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<method name="set_block_signals">
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<return type="void">
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</return>
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<argument index="0" name="enable" type="bool">
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</argument>
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<description>
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If set to true, signal emission is blocked.
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</description>
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</method>
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<method name="set_message_translation">
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<return type="void">
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</return>
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<argument index="0" name="enable" type="bool">
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</argument>
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<description>
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Define whether this object can translate strings (with calls to [method tr]). Default is true.
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</description>
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</method>
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<method name="set_meta">
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<return type="void">
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</return>
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<argument index="0" name="name" type="String">
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</argument>
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<argument index="1" name="value" type="Variant">
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</argument>
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<description>
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Set a metadata into the object. Metadata is serialized. Metadata can be [i]anything[/i].
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</description>
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</method>
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<method name="set_script">
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<return type="void">
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</return>
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<argument index="0" name="script" type="Reference">
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</argument>
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<description>
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Set a script into the object, scripts extend the object functionality.
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</description>
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</method>
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<method name="tr" qualifiers="const">
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<return type="String">
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</return>
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<argument index="0" name="message" type="String">
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</argument>
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<description>
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Translate a message. Only works if message translation is enabled (which it is by default). See [method set_message_translation].
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</description>
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</method>
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</methods>
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<signals>
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<signal name="script_changed">
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<description>
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</description>
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</signal>
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</signals>
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<constants>
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<constant name="NOTIFICATION_POSTINITIALIZE" value="0" enum="">
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Called right when the object is initialized. Not available in script.
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</constant>
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<constant name="NOTIFICATION_PREDELETE" value="1" enum="">
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Called before the object is about to be deleted.
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</constant>
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<constant name="CONNECT_DEFERRED" value="1">
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Connect a signal in deferred mode. This way, signal emissions are stored in a queue, then set on idle time.
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</constant>
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<constant name="CONNECT_PERSIST" value="2">
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Persisting connections are saved when the object is serialized to file.
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</constant>
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<constant name="CONNECT_ONESHOT" value="4">
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One shot connections disconnect themselves after emission.
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</constant>
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</constants>
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</class>
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