diff options
Diffstat (limited to 'src/bin/ttyplay/timer.rs')
| -rw-r--r-- | src/bin/ttyplay/timer.rs | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/bin/ttyplay/timer.rs b/src/bin/ttyplay/timer.rs index b212b4a..d7cb7e0 100644 --- a/src/bin/ttyplay/timer.rs +++ b/src/bin/ttyplay/timer.rs @@ -42,7 +42,9 @@ pub fn spawn_task( .clone(); if force_update_time { let now = std::time::Instant::now(); - start_time = now - frame.delay() * playback_ratio / 16 + start_time = now + .checked_sub(frame.delay() * playback_ratio / 16) + .unwrap() // give a bit of extra time before moving to the // next frame, otherwise backing up behind two // frames that are extremely close together @@ -132,7 +134,9 @@ pub fn spawn_task( if playback_ratio > 1 { playback_ratio /= 2; let now = std::time::Instant::now(); - start_time = now - (now - start_time) / 2; + start_time = now + .checked_sub((now - start_time) / 2) + .unwrap(); event_w .send(crate::event::Event::Speed( playback_ratio, @@ -146,7 +150,9 @@ pub fn spawn_task( if playback_ratio < 256 { playback_ratio *= 2; let now = std::time::Instant::now(); - start_time = now - (now - start_time) * 2; + start_time = now + .checked_sub((now - start_time) * 2) + .unwrap(); event_w .send(crate::event::Event::Speed( playback_ratio, @@ -159,7 +165,10 @@ pub fn spawn_task( crate::event::TimerAction::DefaultSpeed => { let now = std::time::Instant::now(); start_time = now - - (((now - start_time) * 16) / playback_ratio); + .checked_sub( + ((now - start_time) * 16) / playback_ratio, + ) + .unwrap(); playback_ratio = 16; event_w .send(crate::event::Event::Speed(playback_ratio)) |