api.hh

//...

//================================
//  Graphics interface
//================================
class IGraphics {
public:
    //================================
    //  Load texture and get it's ID
    //================================
    virtual TextureID LoadTexture(const std::string &filename) = 0;

    //================================
    //  Unload existing texture
    //================================
    virtual void UnloadTexture(TextureID tex) = 0;

    //================================
    //  Unload all loaded textures
    //================================
    virtual void UnloadAllTextures(void) = 0;

    //================================
    //  Draw textured rectangle
    //================================
    virtual void DrawTexturedRect(int x, int y, int w, int h, TextureID tex) = 0;

    //================================
    //  Draw colored rectangle
    //================================
    virtual void DrawRect(int x, int y, int w, int h, int t, Color border, Color inside) = 0;

    //================================
    //  Draw colored line
    //================================
    virtual void DrawLine(int x1, int y1, int x2, int y2, Color color) = 0;

    //================================
    //  Set default colors
    //================================
    virtual void SetupDefaultColors(Color background, Color foreground) = 0;

    //================================
    //  Clear screen with default color
    //================================
    virtual void ClearScreen(void) = 0;

    //================================
    //  Clear screen
    //================================
    virtual void ClearScreen(Color color) = 0;
};

//================================
//  Audio interface (WAV only!)
//================================
class IAudio {
public:
    //================================
    //  Load sound and get it's ID
    //================================
    virtual SoundID LoadSound(const std::string &filename) = 0;

    //================================
    //  Unload previously loaded sound
    //===============================
    virtual void UnloadSound(SoundID snd) = 0;

    //================================
    //  Unload all previously loaded sounds
    //===============================
    virtual void UnloadAllSounds(void) = 0;

    //================================
    //  Set sound volume
    //================================
    virtual void SetSoundVolume(SoundID snd, int left, int right) = 0;

    //================================
    //  Actually emit sound
    //================================
    virtual void EmitSound(SoundID snd) = 0;
};

//...