virtualx-engine/scene/animation/scene_tree_tween.h
Rémi Verschelde 1426cd3b3a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".

Backported from #70885.
2023-01-10 15:26:54 +01:00

256 lines
8 KiB
C++

/**************************************************************************/
/* scene_tree_tween.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 SCENE_TREE_TWEEN_H
#define SCENE_TREE_TWEEN_H
#include "core/reference.h"
#include "scene/animation/tween.h"
class SceneTreeTween;
class Tweener : public Reference {
GDCLASS(Tweener, Reference);
public:
virtual void set_tween(Ref<SceneTreeTween> p_tween);
virtual void start() = 0;
virtual bool step(float &r_delta) = 0;
void clear_tween();
protected:
static void _bind_methods();
Ref<SceneTreeTween> tween;
float elapsed_time = 0;
bool finished = false;
};
class PropertyTweener;
class IntervalTweener;
class CallbackTweener;
class MethodTweener;
class SceneTreeTween : public Reference {
GDCLASS(SceneTreeTween, Reference);
public:
enum TweenPauseMode {
TWEEN_PAUSE_BOUND,
TWEEN_PAUSE_STOP,
TWEEN_PAUSE_PROCESS,
};
private:
Tween::TweenProcessMode process_mode = Tween::TWEEN_PROCESS_IDLE;
TweenPauseMode pause_mode = TweenPauseMode::TWEEN_PAUSE_BOUND;
Tween::TransitionType default_transition = Tween::TRANS_LINEAR;
Tween::EaseType default_ease = Tween::EASE_IN_OUT;
ObjectID bound_node;
Vector<List<Ref<Tweener>>> tweeners;
float total_time = 0;
int current_step = -1;
int loops = 1;
int loops_done = 0;
float speed_scale = 1;
bool is_bound = false;
bool started = false;
bool running = true;
bool dead = false;
bool valid = false;
bool default_parallel = false;
bool parallel_enabled = false;
#ifdef DEBUG_ENABLED
bool is_infinite = false;
#endif
void start_tweeners();
protected:
static void _bind_methods();
public:
Ref<PropertyTweener> tween_property(Object *p_target, NodePath p_property, Variant p_to, float p_duration);
Ref<IntervalTweener> tween_interval(float p_time);
Ref<CallbackTweener> tween_callback(Object *p_target, StringName p_method, const Vector<Variant> &p_binds = Vector<Variant>());
Ref<MethodTweener> tween_method(Object *p_target, StringName p_method, Variant p_from, Variant p_to, float p_duration, const Vector<Variant> &p_binds = Vector<Variant>());
void append(Ref<Tweener> p_tweener);
bool custom_step(float p_delta);
void stop();
void pause();
void play();
void kill();
bool is_running() const;
bool is_valid() const;
void clear();
Tween::TweenProcessMode get_process_mode() const;
TweenPauseMode get_pause_mode() const;
Tween::TransitionType get_trans() const;
Tween::EaseType get_ease() const;
Ref<SceneTreeTween> bind_node(Node *p_node);
Ref<SceneTreeTween> set_process_mode(Tween::TweenProcessMode p_mode);
Ref<SceneTreeTween> set_pause_mode(TweenPauseMode p_mode);
Ref<SceneTreeTween> set_parallel(bool p_parallel);
Ref<SceneTreeTween> set_loops(int p_loops);
Ref<SceneTreeTween> set_speed_scale(float p_speed);
Ref<SceneTreeTween> set_trans(Tween::TransitionType p_trans);
Ref<SceneTreeTween> set_ease(Tween::EaseType p_ease);
Ref<SceneTreeTween> parallel();
Ref<SceneTreeTween> chain();
Variant interpolate_variant(Variant p_initial_val, Variant p_delta_val, float p_time, float p_duration, Tween::TransitionType p_trans, Tween::EaseType p_ease) const;
Variant calculate_delta_value(Variant p_intial_val, Variant p_final_val);
bool step(float p_delta);
bool can_process(bool p_tree_paused) const;
Node *get_bound_node() const;
float get_total_time() const;
SceneTreeTween() = default;
SceneTreeTween(bool p_valid);
};
VARIANT_ENUM_CAST(SceneTreeTween::TweenPauseMode);
class PropertyTweener : public Tweener {
GDCLASS(PropertyTweener, Tweener);
public:
Ref<PropertyTweener> from(Variant p_value);
Ref<PropertyTweener> from_current();
Ref<PropertyTweener> as_relative();
Ref<PropertyTweener> set_trans(Tween::TransitionType p_trans);
Ref<PropertyTweener> set_ease(Tween::EaseType p_ease);
Ref<PropertyTweener> set_delay(float p_delay);
virtual void set_tween(Ref<SceneTreeTween> p_tween);
virtual void start();
virtual bool step(float &r_delta);
PropertyTweener(Object *p_target, NodePath p_property, Variant p_to, float p_duration);
PropertyTweener();
protected:
static void _bind_methods();
private:
ObjectID target;
Vector<StringName> property;
Variant initial_val;
Variant base_final_val;
Variant final_val;
Variant delta_val;
float duration = 0;
Tween::TransitionType trans_type = Tween::TRANS_COUNT; // This is set inside set_tween();
Tween::EaseType ease_type = Tween::EASE_COUNT;
float delay = 0;
bool do_continue = true;
bool relative = false;
};
class IntervalTweener : public Tweener {
GDCLASS(IntervalTweener, Tweener);
public:
virtual void start();
virtual bool step(float &r_delta);
IntervalTweener(float p_time);
IntervalTweener();
private:
float duration = 0;
};
class CallbackTweener : public Tweener {
GDCLASS(CallbackTweener, Tweener);
public:
Ref<CallbackTweener> set_delay(float p_delay);
virtual void start();
virtual bool step(float &r_delta);
CallbackTweener(Object *p_target, StringName p_method, const Vector<Variant> &p_binds);
CallbackTweener();
protected:
static void _bind_methods();
private:
ObjectID target;
StringName method;
Vector<Variant> binds;
int args = 0;
float delay = 0;
};
class MethodTweener : public Tweener {
GDCLASS(MethodTweener, Tweener);
public:
Ref<MethodTweener> set_trans(Tween::TransitionType p_trans);
Ref<MethodTweener> set_ease(Tween::EaseType p_ease);
Ref<MethodTweener> set_delay(float p_delay);
virtual void set_tween(Ref<SceneTreeTween> p_tween);
virtual void start();
virtual bool step(float &r_delta);
MethodTweener(Object *p_target, StringName p_method, Variant p_from, Variant p_to, float p_duration, const Vector<Variant> &p_binds);
MethodTweener();
protected:
static void _bind_methods();
private:
float duration = 0;
float delay = 0;
Tween::TransitionType trans_type = Tween::TRANS_COUNT;
Tween::EaseType ease_type = Tween::EASE_COUNT;
Ref<SceneTreeTween> tween;
Variant initial_val;
Variant delta_val;
Variant final_val;
ObjectID target;
StringName method;
Vector<Variant> binds;
};
#endif // SCENE_TREE_TWEEN_H