sprite_sheet.h

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#ifndef ASW_SPRITE_SHEET_H
#define ASW_SPRITE_SHEET_H
 
#include "./geometry.h"
#include "./types.h"
 
namespace asw {
 
class SpriteSheet {
public:
    SpriteSheet() = default;
 
    SpriteSheet(const Texture& texture, const Vec2<float>& frame_size, int frame_count = 0);
 
    const Texture& get_texture() const;
 
    Vec2<float> get_frame_size() const;
 
    int get_frame_count() const;
 
    Quad<float> get_frame(int index) const;
 
    void draw_frame(int index, const Quad<float>& dest) const;
 
private:
    Texture texture;
    Vec2<float> frame_size;
    int columns { 0 };
    int frame_count { 0 };
};
 
class Animation {
public:
    Animation() = default;
 
    Animation(int frame_count, float frame_duration, bool loop = true);
 
    void update(float dt);
 
    void reset();
 
    void set_frame_duration(float frame_duration);
 
    int get_frame() const;
 
    bool is_finished() const;
 
private:
    int frame_count { 1 };
    float frame_duration { 0.1F };
    bool loop { true };
    float elapsed { 0.0F };
};
 
} // namespace asw
 
#endif // ASW_SPRITE_SHEET_H