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Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
200 lines
7.7 KiB
C++
200 lines
7.7 KiB
C++
/*************************************************************************/
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/* tween.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef TWEEN_H
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#define TWEEN_H
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#include "scene/main/node.h"
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class Tween : public Node {
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GDCLASS(Tween, Node);
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public:
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enum TweenProcessMode {
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TWEEN_PROCESS_PHYSICS,
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TWEEN_PROCESS_IDLE,
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};
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enum TransitionType {
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TRANS_LINEAR,
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TRANS_SINE,
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TRANS_QUINT,
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TRANS_QUART,
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TRANS_QUAD,
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TRANS_EXPO,
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TRANS_ELASTIC,
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TRANS_CUBIC,
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TRANS_CIRC,
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TRANS_BOUNCE,
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TRANS_BACK,
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TRANS_COUNT,
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};
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enum EaseType {
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EASE_IN,
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EASE_OUT,
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EASE_IN_OUT,
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EASE_OUT_IN,
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EASE_COUNT,
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};
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private:
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enum InterpolateType {
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INTER_PROPERTY,
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INTER_METHOD,
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FOLLOW_PROPERTY,
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FOLLOW_METHOD,
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TARGETING_PROPERTY,
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TARGETING_METHOD,
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INTER_CALLBACK,
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};
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struct InterpolateData {
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bool active;
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InterpolateType type;
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bool finish;
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bool call_deferred;
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real_t elapsed;
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ObjectID id;
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Vector<StringName> key;
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StringName concatenated_key;
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Variant initial_val;
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Variant delta_val;
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Variant final_val;
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ObjectID target_id;
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Vector<StringName> target_key;
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real_t duration;
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TransitionType trans_type;
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EaseType ease_type;
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real_t delay;
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int args;
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Variant arg[5];
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int uid;
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InterpolateData() {
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active = false;
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finish = false;
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call_deferred = false;
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uid = 0;
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}
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};
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String autoplay;
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TweenProcessMode tween_process_mode;
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bool repeat;
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float speed_scale;
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mutable int pending_update;
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int uid;
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List<InterpolateData> interpolates;
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struct PendingCommand {
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StringName key;
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int args;
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Variant arg[10];
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};
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List<PendingCommand> pending_commands;
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void _add_pending_command(StringName p_key, const Variant &p_arg1 = Variant(), const Variant &p_arg2 = Variant(), const Variant &p_arg3 = Variant(), const Variant &p_arg4 = Variant(), const Variant &p_arg5 = Variant(), const Variant &p_arg6 = Variant(), const Variant &p_arg7 = Variant(), const Variant &p_arg8 = Variant(), const Variant &p_arg9 = Variant(), const Variant &p_arg10 = Variant());
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void _process_pending_commands();
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typedef real_t (*interpolater)(real_t t, real_t b, real_t c, real_t d);
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static interpolater interpolaters[TRANS_COUNT][EASE_COUNT];
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real_t _run_equation(TransitionType p_trans_type, EaseType p_ease_type, real_t t, real_t b, real_t c, real_t d);
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Variant &_get_delta_val(InterpolateData &p_data);
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Variant _get_initial_val(const InterpolateData &p_data) const;
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Variant _get_final_val(const InterpolateData &p_data) const;
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Variant _run_equation(InterpolateData &p_data);
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bool _calc_delta_val(const Variant &p_initial_val, const Variant &p_final_val, Variant &p_delta_val);
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bool _apply_tween_value(InterpolateData &p_data, Variant &value);
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void _tween_process(float p_delta);
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void _remove_by_uid(int uid);
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void _push_interpolate_data(InterpolateData &p_data);
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bool _build_interpolation(InterpolateType p_interpolation_type, Object *p_object, NodePath *p_property, StringName *p_method, Variant p_initial_val, Variant p_final_val, real_t p_duration, TransitionType p_trans_type, EaseType p_ease_type, real_t p_delay);
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protected:
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bool _set(const StringName &p_name, const Variant &p_value);
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bool _get(const StringName &p_name, Variant &r_ret) const;
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void _get_property_list(List<PropertyInfo> *p_list) const;
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void _notification(int p_what);
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static void _bind_methods();
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public:
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bool is_active() const;
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void set_active(bool p_active);
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bool is_repeat() const;
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void set_repeat(bool p_repeat);
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void set_tween_process_mode(TweenProcessMode p_mode);
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TweenProcessMode get_tween_process_mode() const;
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void set_speed_scale(float p_speed);
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float get_speed_scale() const;
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bool start();
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bool reset(Object *p_object, StringName p_key);
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bool reset_all();
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bool stop(Object *p_object, StringName p_key);
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bool stop_all();
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bool resume(Object *p_object, StringName p_key);
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bool resume_all();
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bool remove(Object *p_object, StringName p_key);
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bool remove_all();
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bool seek(real_t p_time);
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real_t tell() const;
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real_t get_runtime() const;
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bool interpolate_property(Object *p_object, NodePath p_property, Variant p_initial_val, Variant p_final_val, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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bool interpolate_method(Object *p_object, StringName p_method, Variant p_initial_val, Variant p_final_val, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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bool interpolate_callback(Object *p_object, real_t p_duration, String p_callback, VARIANT_ARG_DECLARE);
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bool interpolate_deferred_callback(Object *p_object, real_t p_duration, String p_callback, VARIANT_ARG_DECLARE);
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bool follow_property(Object *p_object, NodePath p_property, Variant p_initial_val, Object *p_target, NodePath p_target_property, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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bool follow_method(Object *p_object, StringName p_method, Variant p_initial_val, Object *p_target, StringName p_target_method, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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bool targeting_property(Object *p_object, NodePath p_property, Object *p_initial, NodePath p_initial_property, Variant p_final_val, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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bool targeting_method(Object *p_object, StringName p_method, Object *p_initial, StringName p_initial_method, Variant p_final_val, real_t p_duration, TransitionType p_trans_type = TRANS_LINEAR, EaseType p_ease_type = EASE_IN_OUT, real_t p_delay = 0);
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Tween();
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~Tween();
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};
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VARIANT_ENUM_CAST(Tween::TweenProcessMode);
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VARIANT_ENUM_CAST(Tween::TransitionType);
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VARIANT_ENUM_CAST(Tween::EaseType);
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#endif
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