Struct MoviePlayer 

pub struct MoviePlayer { /* private fields */ }

Replays a recorded Movie’s input log against a System already positioned at its start point (via Movie::seek_to_start).

Owns the Movie (rather than borrowing it) specifically so a long-lived host — the frontend’s per-frame drive, holding a player across many real frames — can store one without a self-referential lifetime; Self::movie hands it back if the caller needs it afterward (e.g. to re-verify the ROM hash, or to inspect how many frames were recorded).

Implementations

impl MoviePlayer

pub const fn new(movie: Movie) -> Self

A player starting at the first recorded frame.

pub const fn movie(&self) -> &Movie

The movie being played back.

pub fn next_frame(&mut self) -> Option<FrameInput>

Advance the playback cursor and return the next recorded frame’s input, or None if the movie is exhausted (the caller should stop).

Deliberately does NOT touch a System/Bus itself (unlike an earlier design) — a host that drives input through its own abstraction (e.g. rustysnes-frontend’s EmuCore:: set_pad, which EmuCore::run_frame re-applies from its OWN retained pad state every call) needs to feed the returned FrameInput through THAT abstraction, not have this reach around it and write Bus::set_joypad directly — the two would race for who “wins” depending on call order. A caller working with a bare System directly (as the determinism-replay test does) can just call sys.bus.set_joypad(0, f.p1) / set_joypad(1, f.p2) itself with the returned value.

pub const fn frames_remaining(&self) -> usize

Frames not yet applied.

pub const fn is_finished(&self) -> bool

Whether every recorded frame has been applied.

Trait Implementations

impl Debug for MoviePlayer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.