A struct used to manage the audio that should be played through the machine. The volume initializes at 64 (50% of max volume)

• .close
• .play_track
• .stop_track
• .volume_up
• .volume_down
• .toggle_mute

pub fn close(&mut self)

Wraps the close_audio() method on the sdl2::mixer module

pub fn play_track(&mut self, track_index: u8, number_of_repeats: i32)

Plays the track that was loaded at index track_index and repeats the track as specified in number_of_repeats

pub fn stop_track(&mut self, track_index: u8)

Stops all channels playing the track that was loaded at index track_index

pub fn volume_up(&mut self)

Increases the volume by a value of 1; the volume does not change if the volume is already at it's maximum value of 128

pub fn volume_down(&mut self)

Decreases the volume by a value of 1; the volume does not change if the volume is already 0

pub fn toggle_mute(&mut self)

Mutes the volume if it is not already muted, otherwise the audio is unmuted