Add animation node extension

doc/classes/AnimationNodeExtension.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AnimationNodeExtension" inherits="AnimationRootNode" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="_process" qualifiers="virtual">
+			<return type="void" />
+			<param index="0" name="playback_info" type="PlaybackInfoRC" />
+			<param index="1" name="node_time_info" type="NodeTimeInfoRC" />
+			<param index="2" name="test_only" type="bool" />
+			<description>
+			</description>
+		</method>
+		<method name="get_process_tree" qualifiers="const">
+			<return type="AnimationTree" />
+			<description>
+			</description>
+		</method>
+	</methods>
+</class>

doc/classes/NodeTimeInfoRC.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="NodeTimeInfoRC" inherits="RefCounted" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<members>
+		<member name="delta" type="float" setter="set_delta" getter="get_delta" default="0.0">
+		</member>
+		<member name="is_infinity" type="bool" setter="set_is_infinity" getter="get_is_infinity" default="false">
+		</member>
+		<member name="length" type="float" setter="set_length" getter="get_length" default="0.0">
+		</member>
+		<member name="loop_mode" type="int" setter="set_loop_mode" getter="get_loop_mode" enum="Animation.LoopMode" default="0">
+		</member>
+		<member name="position" type="float" setter="set_position" getter="get_position" default="0.0">
+		</member>
+		<member name="will_end" type="bool" setter="set_will_end" getter="get_will_end" default="false">
+		</member>
+	</members>
+</class>

doc/classes/PlaybackInfoRC.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="PlaybackInfoRC" inherits="RefCounted" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<members>
+		<member name="delta" type="float" setter="set_delta" getter="get_delta" default="0.0">
+		</member>
+		<member name="end" type="float" setter="set_end" getter="get_end" default="0.0">
+		</member>
+		<member name="is_external_seeking" type="bool" setter="set_is_external_seeking" getter="get_is_external_seeking" default="false">
+		</member>
+		<member name="looped_flag" type="int" setter="set_looped_flag" getter="get_looped_flag" enum="Animation.LoopedFlag" default="0">
+		</member>
+		<member name="seeked" type="bool" setter="set_seeked" getter="get_seeked" default="false">
+		</member>
+		<member name="start" type="float" setter="set_start" getter="get_start" default="0.0">
+		</member>
+		<member name="time" type="float" setter="set_time" getter="get_time" default="0.0">
+		</member>
+		<member name="weight" type="float" setter="set_weight" getter="get_weight" default="0.0">
+		</member>
+	</members>
+</class>

scene/animation/animation_node_extension.cpp

@@ -0,0 +1,115 @@
+/**************************************************************************/
+/*  animation_node_extension.cpp                                          */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "animation_node_extension.h"
+
+void NodeTimeInfoRC::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("get_length"), &NodeTimeInfoRC::get_length);
+	ClassDB::bind_method(D_METHOD("set_length", "length"), &NodeTimeInfoRC::set_length);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length"), "set_length", "get_length");
+
+	ClassDB::bind_method(D_METHOD("get_position"), &NodeTimeInfoRC::get_position);
+	ClassDB::bind_method(D_METHOD("set_position", "position"), &NodeTimeInfoRC::set_position);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "position"), "set_position", "get_position");
+
+	ClassDB::bind_method(D_METHOD("get_delta"), &NodeTimeInfoRC::get_delta);
+	ClassDB::bind_method(D_METHOD("set_delta", "delta"), &NodeTimeInfoRC::set_delta);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "delta"), "set_delta", "get_delta");
+
+	ClassDB::bind_method(D_METHOD("get_loop_mode"), &NodeTimeInfoRC::get_loop_mode);
+	ClassDB::bind_method(D_METHOD("set_loop_mode", "loop_mode"), &NodeTimeInfoRC::set_loop_mode);
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "loop_mode", PROPERTY_HINT_ENUM, "None,Linear,PingPong"), "set_loop_mode", "get_loop_mode");
+
+	ClassDB::bind_method(D_METHOD("get_will_end"), &NodeTimeInfoRC::get_will_end);
+	ClassDB::bind_method(D_METHOD("set_will_end", "will_end"), &NodeTimeInfoRC::set_will_end);
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "will_end"), "set_will_end", "get_will_end");
+
+	ClassDB::bind_method(D_METHOD("get_is_infinity"), &NodeTimeInfoRC::get_is_infinity);
+	ClassDB::bind_method(D_METHOD("set_is_infinity", "is_infinity"), &NodeTimeInfoRC::set_is_infinity);
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "is_infinity"), "set_is_infinity", "get_is_infinity");
+}
+
+void PlaybackInfoRC::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("get_time"), &PlaybackInfoRC::get_time);
+	ClassDB::bind_method(D_METHOD("set_time", "time"), &PlaybackInfoRC::set_time);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "time"), "set_time", "get_time");
+
+	ClassDB::bind_method(D_METHOD("get_delta"), &PlaybackInfoRC::get_delta);
+	ClassDB::bind_method(D_METHOD("set_delta", "delta"), &PlaybackInfoRC::set_delta);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "delta"), "set_delta", "get_delta");
+
+	ClassDB::bind_method(D_METHOD("get_start"), &PlaybackInfoRC::get_start);
+	ClassDB::bind_method(D_METHOD("set_start", "start"), &PlaybackInfoRC::set_start);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "start"), "set_start", "get_start");
+
+	ClassDB::bind_method(D_METHOD("get_end"), &PlaybackInfoRC::get_end);
+	ClassDB::bind_method(D_METHOD("set_end", "end"), &PlaybackInfoRC::set_end);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "end"), "set_end", "get_end");
+
+	ClassDB::bind_method(D_METHOD("get_seeked"), &PlaybackInfoRC::get_seeked);
+	ClassDB::bind_method(D_METHOD("set_seeked", "seeked"), &PlaybackInfoRC::set_seeked);
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "seeked"), "set_seeked", "get_seeked");
+
+	ClassDB::bind_method(D_METHOD("get_is_external_seeking"), &PlaybackInfoRC::get_is_external_seeking);
+	ClassDB::bind_method(D_METHOD("set_is_external_seeking", "is_external_seeking"), &PlaybackInfoRC::set_is_external_seeking);
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "is_external_seeking"), "set_is_external_seeking", "get_is_external_seeking");
+
+	ClassDB::bind_method(D_METHOD("get_looped_flag"), &PlaybackInfoRC::get_looped_flag);
+	ClassDB::bind_method(D_METHOD("set_looped_flag", "looped_flag"), &PlaybackInfoRC::set_looped_flag);
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "looped_flag", PROPERTY_HINT_ENUM, "None,End,Start"), "set_looped_flag", "get_looped_flag");
+
+	ClassDB::bind_method(D_METHOD("get_weight"), &PlaybackInfoRC::get_weight);
+	ClassDB::bind_method(D_METHOD("set_weight", "weight"), &PlaybackInfoRC::set_weight);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "weight"), "set_weight", "get_weight");
+}
+
+AnimationNodeExtension::AnimationNodeExtension() {
+	_node_time_info.instantiate();
+	_playback_info.instantiate();
+}
+
+AnimationNode::NodeTimeInfo AnimationNodeExtension::_process(const AnimationMixer::PlaybackInfo p_playback_info, bool p_test_only) {
+	_node_time_info->_reset();
+	_playback_info->_reset(p_playback_info);
+
+	GDVIRTUAL_CALL(_process, _playback_info, _node_time_info, p_test_only);
+
+	return _node_time_info->_get_node_time_info();
+}
+
+AnimationTree *AnimationNodeExtension::get_process_tree() const {
+	ERR_FAIL_NULL_V(process_state, nullptr);
+	return process_state->tree;
+}
+
+void AnimationNodeExtension::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("get_process_tree"), &AnimationNodeExtension::get_process_tree);
+	GDVIRTUAL_BIND(_process, "playback_info", "node_time_info", "test_only");
+}

scene/animation/animation_node_extension.h

@@ -0,0 +1,189 @@
+/**************************************************************************/
+/*  animation_node_extension.h                                            */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef ANIMATION_NODE_EXTENSION_H
+#define ANIMATION_NODE_EXTENSION_H
+
+#include "scene/animation/animation_tree.h"
+
+class NodeTimeInfoRC : public RefCounted {
+	GDCLASS(NodeTimeInfoRC, RefCounted);
+
+public:
+	double get_length() const {
+		return node_time_info.length;
+	}
+	void set_length(double p_length) {
+		node_time_info.length = p_length;
+	}
+
+	double get_position() const {
+		return node_time_info.position;
+	}
+	void set_position(double p_position) {
+		node_time_info.position = p_position;
+	}
+
+	double get_delta() const {
+		return node_time_info.delta;
+	}
+	void set_delta(double p_delta) {
+		node_time_info.delta = p_delta;
+	}
+
+	Animation::LoopMode get_loop_mode() const {
+		return node_time_info.loop_mode;
+	}
+	void set_loop_mode(Animation::LoopMode p_loop_mode) {
+		node_time_info.loop_mode = p_loop_mode;
+	}
+
+	bool get_will_end() const {
+		return node_time_info.will_end;
+	}
+	void set_will_end(bool p_will_end) {
+		node_time_info.will_end = p_will_end;
+	}
+
+	bool get_is_infinity() const {
+		return node_time_info.is_infinity;
+	}
+	void set_is_infinity(bool p_is_infinity) {
+		node_time_info.is_infinity = p_is_infinity;
+	}
+
+	void _reset() {
+		node_time_info = AnimationNode::NodeTimeInfo();
+	}
+
+	const AnimationNode::NodeTimeInfo &_get_node_time_info() const {
+		return node_time_info;
+	}
+
+protected:
+	static void _bind_methods();
+
+private:
+	AnimationNode::NodeTimeInfo node_time_info;
+};
+
+class PlaybackInfoRC : public RefCounted {
+	GDCLASS(PlaybackInfoRC, RefCounted);
+
+public:
+	double get_time() const {
+		return playback_info.time;
+	}
+	void set_time(double p_time) {
+		playback_info.time = p_time;
+	}
+
+	double get_delta() const {
+		return playback_info.delta;
+	}
+	void set_delta(double p_delta) {
+		playback_info.delta = p_delta;
+	}
+
+	double get_start() const {
+		return playback_info.start;
+	}
+	void set_start(double p_start) {
+		playback_info.start = p_start;
+	}
+
+	double get_end() const {
+		return playback_info.end;
+	}
+	void set_end(double p_end) {
+		playback_info.end = p_end;
+	}
+
+	bool get_seeked() const {
+		return playback_info.seeked;
+	}
+	void set_seeked(bool p_seeked) {
+		playback_info.seeked = p_seeked;
+	}
+
+	bool get_is_external_seeking() const {
+		return playback_info.is_external_seeking;
+	}
+	void set_is_external_seeking(bool p_is_external_seeking) {
+		playback_info.is_external_seeking = p_is_external_seeking;
+	}
+
+	Animation::LoopedFlag get_looped_flag() const {
+		return playback_info.looped_flag;
+	}
+	void set_looped_flag(Animation::LoopedFlag p_looped_flag) {
+		playback_info.looped_flag = p_looped_flag;
+	}
+
+	real_t get_weight() const {
+		return playback_info.weight;
+	}
+	void set_weight(real_t p_weight) {
+		playback_info.weight = p_weight;
+	}
+
+	void _reset(const AnimationMixer::PlaybackInfo &p_playback_info) {
+		playback_info = p_playback_info;
+	}
+
+protected:
+	static void _bind_methods();
+
+private:
+	AnimationMixer::PlaybackInfo playback_info;
+};
+
+class AnimationNodeExtension : public AnimationRootNode {
+	GDCLASS(AnimationNodeExtension, AnimationRootNode);
+
+public:
+	AnimationNodeExtension();
+	virtual ~AnimationNodeExtension() = default;
+
+	virtual NodeTimeInfo _process(const AnimationMixer::PlaybackInfo p_playback_info, bool p_test_only = false) override;
+
+	AnimationTree *get_process_tree() const;
+
+protected:
+	static void _bind_methods();
+
+	GDVIRTUAL3(_process, Ref<PlaybackInfoRC>, Ref<NodeTimeInfoRC>, bool);
+
+private:
+	Ref<NodeTimeInfoRC> _node_time_info;
+	Ref<PlaybackInfoRC> _playback_info;
+};
+
+#endif // ANIMATION_NODE_EXTENSION_H