Implement Node::get_process_priority() and its associated property

This closes #33660.

doc/classes/Node.xml

@@ -783,15 +783,6 @@
 				Enables or disabled internal processing for this node. Internal processing happens in isolation from the normal [method _process] calls and is used by some nodes internally to guarantee proper functioning even if the node is paused or processing is disabled for scripting ([method set_process]). Only useful for advanced uses to manipulate built-in nodes' behaviour.
 			</description>
 		</method>
-		<method name="set_process_priority">
-			<return type="void">
-			</return>
-			<argument index="0" name="priority" type="int">
-			</argument>
-			<description>
-				Sets the node's priority in the execution order of the enabled processing callbacks (i.e. [constant NOTIFICATION_PROCESS], [constant NOTIFICATION_PHYSICS_PROCESS] and their internal counterparts). Nodes with a higher process priority will have their processing callbacks executed first.
-			</description>
-		</method>
 		<method name="set_process_unhandled_input">
 			<return type="void">
 			</return>
@@ -847,6 +838,9 @@
 		<member name="pause_mode" type="int" setter="set_pause_mode" getter="get_pause_mode" enum="Node.PauseMode" default="0">
 			Pause mode. How the node will behave if the [SceneTree] is paused.
 		</member>
+		<member name="process_priority" type="int" setter="set_process_priority" getter="get_process_priority" default="0">
+			The node's priority in the execution order of the enabled processing callbacks (i.e. [constant NOTIFICATION_PROCESS], [constant NOTIFICATION_PHYSICS_PROCESS] and their internal counterparts). Nodes with a higher process priority will have their processing callbacks executed first.
+		</member>
 	</members>
 	<signals>
 		<signal name="ready">

doc/classes/String.xml

@@ -752,7 +752,6 @@
 				print(some_array[0]) # Prints "Four"
 				print(some_array[1]) # Prints "Three,Two,One"
 				[/codeblock]
-
 			</description>
 		</method>
 		<method name="rstrip">

scene/main/node.cpp

@@ -850,6 +850,11 @@ void Node::set_process_priority(int p_priority) {
 		data.tree->make_group_changed("physics_process_internal");
 }
 
+int Node::get_process_priority() const {
+
+	return data.process_priority;
+}
+
 void Node::set_process_input(bool p_enable) {
 
 	if (p_enable == data.input)
@@ -2754,6 +2759,7 @@ void Node::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_process_delta_time"), &Node::get_process_delta_time);
 	ClassDB::bind_method(D_METHOD("set_process", "enable"), &Node::set_process);
 	ClassDB::bind_method(D_METHOD("set_process_priority", "priority"), &Node::set_process_priority);
+	ClassDB::bind_method(D_METHOD("get_process_priority"), &Node::get_process_priority);
 	ClassDB::bind_method(D_METHOD("is_processing"), &Node::is_processing);
 	ClassDB::bind_method(D_METHOD("set_process_input", "enable"), &Node::set_process_input);
 	ClassDB::bind_method(D_METHOD("is_processing_input"), &Node::is_processing_input);
@@ -2894,6 +2900,7 @@ void Node::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "owner", PROPERTY_HINT_RESOURCE_TYPE, "Node", 0), "set_owner", "get_owner");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "multiplayer", PROPERTY_HINT_RESOURCE_TYPE, "MultiplayerAPI", 0), "", "get_multiplayer");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "custom_multiplayer", PROPERTY_HINT_RESOURCE_TYPE, "MultiplayerAPI", 0), "set_custom_multiplayer", "get_custom_multiplayer");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "process_priority"), "set_process_priority", "get_process_priority");
 
 	BIND_VMETHOD(MethodInfo("_process", PropertyInfo(Variant::REAL, "delta")));
 	BIND_VMETHOD(MethodInfo("_physics_process", PropertyInfo(Variant::REAL, "delta")));

scene/main/node.h

@@ -350,6 +350,7 @@ public:
 	bool is_processing_internal() const;
 
 	void set_process_priority(int p_priority);
+	int get_process_priority() const;
 
 	void set_process_input(bool p_enable);
 	bool is_processing_input() const;