4 * Created on: Aug 11, 2012
8 #ifndef GRAPHICS_ANIMATION_H_
9 #define GRAPHICS_ANIMATION_H_
12 #include "../app/Application.h"
13 #include "../app/State.h"
14 #include "../app/Timer.h"
15 #include "../geometry/Vector.h"
21 class TypeDescription;
30 : sprite(0), frameTime(0), repeat(false) { }
31 Animation(const Sprite *sprite, int frameTime, bool repeat = false)
32 : sprite(sprite), frameTime(frameTime), repeat(repeat) { }
33 virtual ~Animation() { };
36 const Sprite *GetSprite() const { return sprite; }
37 int FrameTime() const { return frameTime; }
38 bool Repeat() const { return repeat; }
41 void SetSprite(const Sprite *s) { sprite = s; }
42 void SetFrameTime(int t) { frameTime = t; }
43 void SetRepeat(bool r) { repeat = r; }
46 virtual int NumFrames() const = 0;
47 virtual int Col(int frame) const = 0;
48 virtual int Row(int frame) const = 0;
49 virtual geometry::Vector<int> Offset(int frame) const { return geometry::Vector<int>(); }
52 static void AddFields(loader::TypeDescription &, const Animation &, std::ptrdiff_t offset);
62 class AnimationRunner {
65 explicit AnimationRunner(const Animation *a = 0, int colOffset = 0, int rowOffset = 0)
66 : animation(a), sprite(a ? a->GetSprite() : 0), colOffset(colOffset), rowOffset(rowOffset) { }
69 bool Valid() const { return animation; }
70 void Clear() { animation = 0; timer = app::Timer<Uint32>(); }
72 void Start(app::State &ctrl) {
73 timer = ctrl.GraphicsTimers().StartInterval(animation->FrameTime());
75 void Start(app::Application &ctrl) {
76 timer = ctrl.GlobalTimers().StartInterval(animation->FrameTime());
79 timer = app::Timer<Uint32>();
81 bool Started() const {
82 return timer.Started();
84 bool Running() const {
85 return timer.Running() && (animation->Repeat() || timer.Iteration() < animation->NumFrames());
87 bool Finished() const {
88 return Started() && !Running();
90 bool JustFinished() const {
91 return timer.JustHit() && timer.Iteration() == animation->NumFrames();
94 const app::Timer<Uint32> &GetTimer() { return timer; }
96 void SetColOffset(int offset) { colOffset = offset; }
97 int ColOffset() const { return colOffset; }
98 void SetRowOffset(int offset) { rowOffset = offset; }
99 int RowOffset() const { return rowOffset; }
101 void ChangeSprite(const Sprite *s) { sprite = s; }
102 const Sprite *GetSprite() const { return sprite; }
104 void Draw(SDL_Surface *dest, geometry::Vector<int> position) const {
105 sprite->Draw(dest, position + animation->Offset(Frame()), animation->Col(Frame()) + ColOffset(), animation->Row(Frame()) + RowOffset());
107 void DrawTopRight(SDL_Surface *dest, geometry::Vector<int> position) const {
108 geometry::Vector<int> offset(-sprite->Width(), 0);
109 Draw(dest, position + offset);
111 void DrawCenter(SDL_Surface *dest, geometry::Vector<int> position) const {
112 Draw(dest, position - (sprite->Size() / 2));
114 void DrawCenterBottom(SDL_Surface *dest, geometry::Vector<int> position) const {
115 geometry::Vector<int> offset(-sprite->Width() / 2, -sprite->Height());
116 Draw(dest, position + offset);
119 int Frame() const { return Running() ? (timer.Iteration() % animation->NumFrames()) : 0; }
122 const Animation *animation;
123 const graphics::Sprite *sprite;
124 app::Timer<Uint32> timer;
132 #endif /* GRAPHICS_SIMPLEANIMATION_H_ */