363 lines
13 KiB
C++
363 lines
13 KiB
C++
/*************************************************************************/
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/* animation.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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 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 ANIMATION_H
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#define ANIMATION_H
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#include "core/io/resource.h"
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#define ANIM_MIN_LENGTH 0.001
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class Animation : public Resource {
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GDCLASS(Animation, Resource);
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RES_BASE_EXTENSION("anim");
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public:
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enum TrackType {
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TYPE_VALUE, ///< Set a value in a property, can be interpolated.
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TYPE_TRANSFORM3D, ///< Transform a node or a bone.
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TYPE_METHOD, ///< Call any method on a specific node.
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TYPE_BEZIER, ///< Bezier curve
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TYPE_AUDIO,
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TYPE_ANIMATION,
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};
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enum InterpolationType {
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INTERPOLATION_NEAREST,
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INTERPOLATION_LINEAR,
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INTERPOLATION_CUBIC
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};
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enum UpdateMode {
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UPDATE_CONTINUOUS,
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UPDATE_DISCRETE,
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UPDATE_TRIGGER,
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UPDATE_CAPTURE,
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};
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private:
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struct Track {
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TrackType type = TrackType::TYPE_ANIMATION;
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InterpolationType interpolation = INTERPOLATION_LINEAR;
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bool loop_wrap = true;
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NodePath path; // path to something
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bool imported = false;
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bool enabled = true;
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Track() {}
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virtual ~Track() {}
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};
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struct Key {
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real_t transition = 1.0;
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double time = 0.0; // time in secs
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};
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// transform key holds either Vector3 or Quaternion
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template <class T>
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struct TKey : public Key {
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T value;
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};
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struct TransformKey {
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Vector3 loc;
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Quaternion rot;
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Vector3 scale;
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};
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// Not necessarily the same size as Transform3D. The amount of numbers in Animation::Key and TransformKey.
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const int32_t TRANSFORM_TRACK_SIZE = 12;
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/* TRANSFORM TRACK */
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struct TransformTrack : public Track {
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Vector<TKey<TransformKey>> transforms;
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TransformTrack() { type = TYPE_TRANSFORM3D; }
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};
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/* PROPERTY VALUE TRACK */
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struct ValueTrack : public Track {
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UpdateMode update_mode = UPDATE_CONTINUOUS;
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bool update_on_seek = false;
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Vector<TKey<Variant>> values;
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ValueTrack() {
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type = TYPE_VALUE;
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}
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};
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/* METHOD TRACK */
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struct MethodKey : public Key {
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StringName method;
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Vector<Variant> params;
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};
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struct MethodTrack : public Track {
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Vector<MethodKey> methods;
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MethodTrack() { type = TYPE_METHOD; }
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};
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/* BEZIER TRACK */
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struct BezierKey {
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Vector2 in_handle; //relative (x always <0)
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Vector2 out_handle; //relative (x always >0)
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real_t value = 0.0;
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};
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struct BezierTrack : public Track {
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Vector<TKey<BezierKey>> values;
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BezierTrack() {
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type = TYPE_BEZIER;
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}
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};
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/* AUDIO TRACK */
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struct AudioKey {
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RES stream;
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real_t start_offset = 0.0; //offset from start
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real_t end_offset = 0.0; //offset from end, if 0 then full length or infinite
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AudioKey() {
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}
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};
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struct AudioTrack : public Track {
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Vector<TKey<AudioKey>> values;
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AudioTrack() {
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type = TYPE_AUDIO;
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}
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};
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/* AUDIO TRACK */
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struct AnimationTrack : public Track {
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Vector<TKey<StringName>> values;
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AnimationTrack() {
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type = TYPE_ANIMATION;
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}
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};
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Vector<Track *> tracks;
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/*
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template<class T>
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int _insert_pos(double p_time, T& p_keys);*/
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template <class T>
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void _clear(T &p_keys);
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template <class T, class V>
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int _insert(double p_time, T &p_keys, const V &p_value);
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template <class K>
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inline int _find(const Vector<K> &p_keys, double p_time) const;
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_FORCE_INLINE_ Animation::TransformKey _interpolate(const Animation::TransformKey &p_a, const Animation::TransformKey &p_b, real_t p_c) const;
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_FORCE_INLINE_ Vector3 _interpolate(const Vector3 &p_a, const Vector3 &p_b, real_t p_c) const;
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_FORCE_INLINE_ Quaternion _interpolate(const Quaternion &p_a, const Quaternion &p_b, real_t p_c) const;
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_FORCE_INLINE_ Variant _interpolate(const Variant &p_a, const Variant &p_b, real_t p_c) const;
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_FORCE_INLINE_ real_t _interpolate(const real_t &p_a, const real_t &p_b, real_t p_c) const;
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_FORCE_INLINE_ Animation::TransformKey _cubic_interpolate(const Animation::TransformKey &p_pre_a, const Animation::TransformKey &p_a, const Animation::TransformKey &p_b, const Animation::TransformKey &p_post_b, real_t p_c) const;
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_FORCE_INLINE_ Vector3 _cubic_interpolate(const Vector3 &p_pre_a, const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_post_b, real_t p_c) const;
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_FORCE_INLINE_ Quaternion _cubic_interpolate(const Quaternion &p_pre_a, const Quaternion &p_a, const Quaternion &p_b, const Quaternion &p_post_b, real_t p_c) const;
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_FORCE_INLINE_ Variant _cubic_interpolate(const Variant &p_pre_a, const Variant &p_a, const Variant &p_b, const Variant &p_post_b, real_t p_c) const;
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_FORCE_INLINE_ real_t _cubic_interpolate(const real_t &p_pre_a, const real_t &p_a, const real_t &p_b, const real_t &p_post_b, real_t p_c) const;
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template <class T>
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_FORCE_INLINE_ T _interpolate(const Vector<TKey<T>> &p_keys, double p_time, InterpolationType p_interp, bool p_loop_wrap, bool *p_ok) const;
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template <class T>
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_FORCE_INLINE_ void _track_get_key_indices_in_range(const Vector<T> &p_array, double from_time, double to_time, List<int> *p_indices) const;
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_FORCE_INLINE_ void _value_track_get_key_indices_in_range(const ValueTrack *vt, double from_time, double to_time, List<int> *p_indices) const;
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_FORCE_INLINE_ void _method_track_get_key_indices_in_range(const MethodTrack *mt, double from_time, double to_time, List<int> *p_indices) const;
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double length = 1.0;
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real_t step = 0.1;
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bool loop = false;
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// bind helpers
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private:
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Array _transform_track_interpolate(int p_track, double p_time) const {
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Vector3 loc;
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Quaternion rot;
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Vector3 scale;
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transform_track_interpolate(p_track, p_time, &loc, &rot, &scale);
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Array ret;
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ret.push_back(loc);
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ret.push_back(rot);
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ret.push_back(scale);
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return ret;
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}
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Vector<int> _value_track_get_key_indices(int p_track, double p_time, double p_delta) const {
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List<int> idxs;
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value_track_get_key_indices(p_track, p_time, p_delta, &idxs);
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Vector<int> idxr;
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for (int &E : idxs) {
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idxr.push_back(E);
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}
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return idxr;
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}
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Vector<int> _method_track_get_key_indices(int p_track, double p_time, double p_delta) const {
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List<int> idxs;
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method_track_get_key_indices(p_track, p_time, p_delta, &idxs);
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Vector<int> idxr;
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for (int &E : idxs) {
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idxr.push_back(E);
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}
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return idxr;
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}
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bool _transform_track_optimize_key(const TKey<TransformKey> &t0, const TKey<TransformKey> &t1, const TKey<TransformKey> &t2, real_t p_alowed_linear_err, real_t p_alowed_angular_err, real_t p_max_optimizable_angle, const Vector3 &p_norm);
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void _transform_track_optimize(int p_idx, real_t p_allowed_linear_err = 0.05, real_t p_allowed_angular_err = 0.01, real_t p_max_optimizable_angle = Math_PI * 0.125);
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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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virtual void reset_state() override;
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static void _bind_methods();
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public:
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int add_track(TrackType p_type, int p_at_pos = -1);
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void remove_track(int p_track);
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int get_track_count() const;
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TrackType track_get_type(int p_track) const;
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void track_set_path(int p_track, const NodePath &p_path);
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NodePath track_get_path(int p_track) const;
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int find_track(const NodePath &p_path) const;
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// transform
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void track_move_up(int p_track);
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void track_move_down(int p_track);
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void track_move_to(int p_track, int p_to_index);
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void track_swap(int p_track, int p_with_track);
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void track_set_imported(int p_track, bool p_imported);
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bool track_is_imported(int p_track) const;
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void track_set_enabled(int p_track, bool p_enabled);
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bool track_is_enabled(int p_track) const;
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void track_insert_key(int p_track, double p_time, const Variant &p_key, real_t p_transition = 1);
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void track_set_key_transition(int p_track, int p_key_idx, real_t p_transition);
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void track_set_key_value(int p_track, int p_key_idx, const Variant &p_value);
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void track_set_key_time(int p_track, int p_key_idx, double p_time);
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int track_find_key(int p_track, double p_time, bool p_exact = false) const;
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void track_remove_key(int p_track, int p_idx);
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void track_remove_key_at_time(int p_track, double p_time);
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int track_get_key_count(int p_track) const;
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Variant track_get_key_value(int p_track, int p_key_idx) const;
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double track_get_key_time(int p_track, int p_key_idx) const;
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real_t track_get_key_transition(int p_track, int p_key_idx) const;
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int transform_track_insert_key(int p_track, double p_time, const Vector3 &p_loc, const Quaternion &p_rot = Quaternion(), const Vector3 &p_scale = Vector3());
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Error transform_track_get_key(int p_track, int p_key, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const;
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void track_set_interpolation_type(int p_track, InterpolationType p_interp);
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InterpolationType track_get_interpolation_type(int p_track) const;
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int bezier_track_insert_key(int p_track, double p_time, real_t p_value, const Vector2 &p_in_handle, const Vector2 &p_out_handle);
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void bezier_track_set_key_value(int p_track, int p_index, real_t p_value);
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void bezier_track_set_key_in_handle(int p_track, int p_index, const Vector2 &p_handle);
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void bezier_track_set_key_out_handle(int p_track, int p_index, const Vector2 &p_handle);
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real_t bezier_track_get_key_value(int p_track, int p_index) const;
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Vector2 bezier_track_get_key_in_handle(int p_track, int p_index) const;
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Vector2 bezier_track_get_key_out_handle(int p_track, int p_index) const;
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real_t bezier_track_interpolate(int p_track, double p_time) const;
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int audio_track_insert_key(int p_track, double p_time, const RES &p_stream, real_t p_start_offset = 0, real_t p_end_offset = 0);
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void audio_track_set_key_stream(int p_track, int p_key, const RES &p_stream);
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void audio_track_set_key_start_offset(int p_track, int p_key, real_t p_offset);
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void audio_track_set_key_end_offset(int p_track, int p_key, real_t p_offset);
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RES audio_track_get_key_stream(int p_track, int p_key) const;
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real_t audio_track_get_key_start_offset(int p_track, int p_key) const;
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real_t audio_track_get_key_end_offset(int p_track, int p_key) const;
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int animation_track_insert_key(int p_track, double p_time, const StringName &p_animation);
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void animation_track_set_key_animation(int p_track, int p_key, const StringName &p_animation);
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StringName animation_track_get_key_animation(int p_track, int p_key) const;
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void track_set_interpolation_loop_wrap(int p_track, bool p_enable);
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bool track_get_interpolation_loop_wrap(int p_track) const;
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Error transform_track_interpolate(int p_track, double p_time, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const;
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Variant value_track_interpolate(int p_track, double p_time) const;
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void value_track_get_key_indices(int p_track, double p_time, double p_delta, List<int> *p_indices) const;
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void value_track_set_update_mode(int p_track, UpdateMode p_mode);
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UpdateMode value_track_get_update_mode(int p_track) const;
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void method_track_get_key_indices(int p_track, double p_time, double p_delta, List<int> *p_indices) const;
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Vector<Variant> method_track_get_params(int p_track, int p_key_idx) const;
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StringName method_track_get_name(int p_track, int p_key_idx) const;
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void copy_track(int p_track, Ref<Animation> p_to_animation);
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void track_get_key_indices_in_range(int p_track, double p_time, double p_delta, List<int> *p_indices) const;
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void set_length(real_t p_length);
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real_t get_length() const;
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void set_loop(bool p_enabled);
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bool has_loop() const;
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void set_step(real_t p_step);
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real_t get_step() const;
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void clear();
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void optimize(real_t p_allowed_linear_err = 0.05, real_t p_allowed_angular_err = 0.01, real_t p_max_optimizable_angle = Math_PI * 0.125);
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Animation();
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~Animation();
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};
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VARIANT_ENUM_CAST(Animation::TrackType);
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VARIANT_ENUM_CAST(Animation::InterpolationType);
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VARIANT_ENUM_CAST(Animation::UpdateMode);
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#endif
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