1 #ifndef MSP_GL_ANIMATION_H_
2 #define MSP_GL_ANIMATION_H_
4 #include <msp/core/refptr.h>
5 #include <msp/datafile/objectloader.h>
6 #include <msp/interpolate/spline.h>
7 #include <msp/time/timedelta.h>
13 class AnimationEventObserver;
19 An Animation is a sequence of KeyFrames combined with timing information. The
20 state at any point in the animation can be interpolated from the keyframes.
25 class Loader: public DataFile::CollectionObjectLoader<Animation>
28 Time::TimeDelta current_time;
34 Loader(Animation &, Collection &);
37 virtual void finish();
39 void event(const std::string &);
40 void event1i(const std::string &, int);
41 void event1f(const std::string &, float);
42 void event2f(const std::string &, float, float);
43 void event3f(const std::string &, float, float, float);
44 void event4f(const std::string &, float, float, float, float);
46 void keyframe(const std::string &);
47 void keyframe_inline();
48 void slopes(float, float);
69 virtual void apply(float, Matrix &) const = 0;
70 virtual void apply(float, KeyFrame::AnimatedUniform &) const = 0;
74 class ValueCurve: public Curve
77 typedef typename Interpolate::SplineKnot<float, N> Knot;
80 Interpolate::Spline<float, 1, N> spline;
83 ValueCurve(CurveTarget, const std::vector<Knot> &);
85 virtual void apply(float, Matrix &) const;
86 virtual void apply(float, KeyFrame::AnimatedUniform &) const;
92 const std::string &name;
94 ExtractUniform(const std::string &n): name(n) { }
96 bool operator()(const KeyFrame &, typename Interpolate::SplineValue<float, N>::Type &) const;
101 Time::TimeDelta time;
104 RefPtr<const KeyFrame> keyframe;
109 Time::TimeDelta time;
119 UniformInfo(const std::string &, unsigned);
126 const Animation *animation;
127 Time::TimeDelta elapsed;
128 std::vector<Event>::const_iterator event_iter;
132 Iterator(const Animation &);
134 Iterator &operator+=(const Time::TimeDelta &);
135 void dispatch_events(AnimationEventObserver &);
137 bool is_end() const { return end; }
138 Matrix get_matrix() const;
139 KeyFrame::AnimatedUniform get_uniform(unsigned) const;
140 Matrix get_pose_matrix(unsigned) const;
144 const Armature *armature;
145 std::vector<TimedKeyFrame> keyframes;
146 std::vector<Event> events;
148 std::vector<UniformInfo> uniforms;
149 std::vector<Curve *> curves;
155 void set_armature(const Armature &);
156 const Armature *get_armature() const { return armature; }
158 unsigned get_n_uniforms() const { return uniforms.size(); }
159 unsigned get_slot_for_uniform(const std::string &) const;
160 const std::string &get_uniform_name(unsigned) const;
162 void add_keyframe(const Time::TimeDelta &, const KeyFrame &);
163 void add_keyframe(const Time::TimeDelta &, const KeyFrame &, float);
164 void add_keyframe(const Time::TimeDelta &, const KeyFrame &, float, float);
166 void add_keyframe(const Time::TimeDelta &, const RefPtr<const KeyFrame> &, float, float);
167 void prepare_keyframe(TimedKeyFrame &);
168 void create_curves();
169 template<unsigned N, typename T>
170 void create_curve(CurveTarget target, const T &);
171 static bool extract_position(const KeyFrame &, Vector3 &);
172 static bool extract_euler(const KeyFrame &, Vector3 &);
173 static bool extract_scale(const KeyFrame &, Vector3 &);
175 void add_event(const Time::TimeDelta &, const std::string &, const Variant & = Variant());
177 const Msp::Time::TimeDelta &get_duration() const;
179 void set_looping(bool);