new Surface(datadir + "/images/" + images[i], true));
}
- action->frame_delay = 1000.0f/action->fps;
-
actions[action->name] = action;
}
act->x_hotspot = 0;
act->y_hotspot = 0;
act->fps = 10;
- act->frame_delay = 1000.0f/act->fps;
- time = 0;
+
+ start_animation(-1);
}
void
}
void
-Sprite::update(float /*delta*/)
+Sprite::start_animation(int loops)
{
- //time += 10*delta;
- //std::cout << "Delta: " << delta << std::endl;
+animation_loops = loops;
+reset();
}
void
-Sprite::draw(DrawingContext& context, const Vector& pos, int layer,
- Uint32 drawing_effect)
+Sprite::reset()
{
- time = SDL_GetTicks();
- unsigned int frame = get_current_frame();
+frame = 0;
+last_tick = SDL_GetTicks();
+animation_reversed = true;
+}
+
+bool
+Sprite::check_animation()
+{
+return animation_loops;
+}
+
+void
+Sprite::reverse_animation()
+{
+animation_reversed = !animation_reversed;
+
+if(animation_reversed)
+ frame = get_frames()-1;
+else
+ frame = 0;
+}
+
+void
+Sprite::update()
+{
+if(animation_loops == 0)
+ return;
+
+float frame_inc = (action->fps/1000.0) * (SDL_GetTicks() - last_tick);
+
+if(animation_reversed)
+ frame -= frame_inc;
+else
+ frame += frame_inc;
+
+last_tick = SDL_GetTicks();
- if (frame < action->surfaces.size())
+if(animation_reversed)
{
- Surface* surface = action->surfaces[frame];
-
- context.draw_surface(surface, pos - Vector(action->x_hotspot, action->y_hotspot), layer, drawing_effect);
+ float excedent = frame - 0;
+ if(excedent < 0 || excedent >= get_frames())
+ { // last case can happen when not used reverse_animation()
+ frame = get_frames() - 1;
+ if(animation_loops > 0)
+ animation_loops--;
+
+ if(fabsf(excedent) < get_frames())
+ frame += excedent;
+ }
+ }
+else
+ {
+ float excedent = frame - action->surfaces.size();
+ if(excedent >= 0)
+ {
+ frame = 0;
+ if(animation_loops > 0)
+ animation_loops--;
+
+ if(excedent < get_frames())
+ frame += excedent;
+ }
}
}
+void
+Sprite::draw(DrawingContext& context, const Vector& pos, int layer,
+ Uint32 drawing_effect)
+{
+ update();
+
+ if((int)frame >= get_frames() || (int)frame < 0)
+ std::cerr << "Warning: frame out of range: " << (int)frame
+ << "/" << get_frames() << " at sprite: " << get_name()
+ << "/" << get_action_name() << std::endl;
+ else
+ context.draw_surface(action->surfaces[(int)frame],
+ pos - Vector(action->x_hotspot, action->y_hotspot), layer, drawing_effect);
+}
+
#if 0
void
Sprite::draw_part(float sx, float sy, float x, float y, float w, float h)
}
#endif
-void
-Sprite::reset()
-{
- time = 0;
-}
-
-int
-Sprite::get_current_frame() const
-{
- unsigned int frame = static_cast<int>(fmodf(time, action->surfaces.size()*action->frame_delay)/action->frame_delay);
- return frame % action->surfaces.size();
-}
-
int
-Sprite::get_width() const
+Sprite::get_width()
{
- return action->surfaces[get_current_frame()]->w;
+ return action->surfaces[get_frame()]->w;
}
int
-Sprite::get_height() const
+Sprite::get_height()
{
- return action->surfaces[get_current_frame()]->h;
+ return action->surfaces[get_frame()]->h;
}
/* EOF */