[ ] PatternData, holding note and volume columns information.
[ ] PatternState, holding a state machine for the playback of a pattern.
[ ] Voice, representing the input and output of a 'channel' in a PatternState.
[ ] Integrate into matt:engine::Engine.
An Engine will have a list of PatternData, and a list of PatternState.
Whenever a pattern is played, a PatternState is created for that pattern. When it is created, the PatternState produces a brief list of Voice objects, through a function create_init_voices which returns a Vec<Voice> (with ownership) to the Engine above, which appends them to a list.
When the engine ticks, it first ticks each PatternState, letting it update itself from the content of the current row; and then the Engine requests each PatternState to update its corresponding Voice objects (by passing a &mut [Voice] and a &PatternData). Once every Voice object is updated, with information such as command and note and volume (enum NoteCommand and enum VolumeCommand), they are ready to be polled by the "routing pass":
Tracks the fleshing out of pattern code.
PatternData, holding note and volume columns information.PatternState, holding a state machine for the playback of a pattern.Voice, representing the input and output of a 'channel' in aPatternState.matt:engine::Engine.An
Enginewill have a list ofPatternData, and a list ofPatternState.Whenever a pattern is played, a
PatternStateis created for that pattern. When it is created, thePatternStateproduces a brief list ofVoiceobjects, through a functioncreate_init_voiceswhich returns aVec<Voice>(with ownership) to theEngineabove, which appends them to a list.When the engine ticks, it first ticks each
PatternState, letting it update itself from the content of the current row; and then theEnginerequests eachPatternStateto update its correspondingVoiceobjects (by passing a&mut [Voice]and a&PatternData). Once everyVoiceobject is updated, with information such as command and note and volume (enum NoteCommandandenum VolumeCommand), they are ready to be polled by the "routing pass":