song_info

Two small display classes show the song's title and play-count during gameplay. They are owned by game and rendered in draw_overlay().

SongNum

Displays the current song number (e.g. "1/3" in a multi-song session) as an outlined text label.

Construction

SongNum(int song_num);

Creates an OutlinedText from song_num using the song-number font.

Members

Member	Type	Description
text	unique_ptr<OutlinedText>	The rendered song count string
width	float	Text width in pixels; used by callers to align
height	float	Text height in pixels

Methods

void draw(float x, float y, float fade);

Draws the song-number text at (x, y) blended by fade (0–1).

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SongInfo

Displays the song title and song number together. It appears briefly at the start of a song and fades out.

Construction

SongInfo(const string& song_name, int genre);

Creates the OutlinedText title and a SongNum, then starts a FadeAnimation that controls the overall visibility.

Members

Member	Type	Description
song_name	string	The song title string
genre	int	Genre index; selects the genre-coloured text style
fade	FadeAnimation*	Controls the fade-in and fade-out timing
song_title	unique_ptr<OutlinedText>	The song title rendered as outlined text
song_num	unique_ptr<SongNum>	The song count display

Methods

void update(double current_ms);

Advances the fade animation.

void draw();

Draws song_title and song_num at their configured positions, multiplied by the current fade value.