Count number of times a repeating Timer wraps around in a tick #1112
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This was referenced Dec 22, 2020
alice-i-cecile
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…ngine#1112) Added just_finished_count() function
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This pull request is following the discussion on the issue #1127. Additionally, it integrates the change proposed by #1112. The list of change of this pull request: * 💥 Change `Timer` to `Timer<T>` in order to make specialization very explicit to the user, while removing the boilerplated NewType pattern for Timers. This is a breaking change * ✨ Add `Timer::times_finished` method that counts the number of wraps for repeating timers. * ♻️ Refactored `Timer` * 🐛 Fix a bug where 2 successive calls to `Timer::tick` which makes a repeating timer to finish makes `Timer::just_finished` to return `false` where it should return `true`. Minimal failing example: ```rust use bevy::prelude::*; let mut timer: Timer<()> = Timer::from_seconds(1.0, true); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); // <- This fails where it should not ``` * 📚 Add extensive documentation for Timer with doc examples. * ✨ Add `Cooldown` and `Stopwatch` structs similar to `Timer` with extensive doc and tests. Even if the type specialization is not retained for bevy, the doc, bugfix and added method are worth salvaging 😅. This is my first PR for bevy, please be kind to me ❤️ . Co-authored-by: Carter Anderson <[email protected]>
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This pull request is following the discussion on the issue #1127. Additionally, it integrates the change proposed by #1112. The list of change of this pull request: * ✨ Add `Timer::times_finished` method that counts the number of wraps for repeating timers. * ♻️ Refactored `Timer` * 🐛 Fix a bug where 2 successive calls to `Timer::tick` which makes a repeating timer to finish makes `Timer::just_finished` to return `false` where it should return `true`. Minimal failing example: ```rust use bevy::prelude::*; let mut timer: Timer<()> = Timer::from_seconds(1.0, true); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); // <- This fails where it should not ``` * 📚 Add extensive documentation for Timer with doc examples. * ✨ Add a `Stopwatch` struct similar to `Timer` with extensive doc and tests. Even if the type specialization is not retained for bevy, the doc, bugfix and added method are worth salvaging 😅. This is my first PR for bevy, please be kind to me ❤️ . Co-authored-by: Carter Anderson <[email protected]>
bors bot
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Mar 5, 2021
This pull request is following the discussion on the issue #1127. Additionally, it integrates the change proposed by #1112. The list of change of this pull request: * ✨ Add `Timer::times_finished` method that counts the number of wraps for repeating timers. * ♻️ Refactored `Timer` * 🐛 Fix a bug where 2 successive calls to `Timer::tick` which makes a repeating timer to finish makes `Timer::just_finished` to return `false` where it should return `true`. Minimal failing example: ```rust use bevy::prelude::*; let mut timer: Timer<()> = Timer::from_seconds(1.0, true); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); timer.tick(1.5); assert!(timer.finished()); assert!(timer.just_finished()); // <- This fails where it should not ``` * 📚 Add extensive documentation for Timer with doc examples. * ✨ Add a `Stopwatch` struct similar to `Timer` with extensive doc and tests. Even if the type specialization is not retained for bevy, the doc, bugfix and added method are worth salvaging 😅. This is my first PR for bevy, please be kind to me ❤️ . Co-authored-by: Carter Anderson <[email protected]>
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Currently, a repeating Timer's elapsed time can wrap around multiple times in one call of
tick()if the delta time value is large compared to the Timer's duration. This can be an issue if you want the Timer to finish a precise number of times per second, since there's no way to know how many times it actually finished within a tick. This PR adds a new functionnum_times_just_finished()to Timer that returns the total number of times the timer finished during the current tick, so that any skipped-over durations can be handled if desired.