62 lines
3.3 KiB
Markdown
62 lines
3.3 KiB
Markdown
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# Phaser 3.85.0 Change Log
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Return to the [Change Log index](CHANGELOG-v3.85.md).
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# matter.js version `0.20.0`
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# Highlights
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* Added support for high refresh rate displays with fixed timestep in `Matter.Runner`
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* Added support for sub-stepping for higher quality simulations in `Matter.Runner`
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* Changed to a fixed timestep by default in `Matter.Runner`
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* Improved frame pacing and average performance up to ~6% (see [#1238](https://github.com/liabru/matter-js/pull/1238))
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* Reduced average memory usage up to ~30% (see [#1238](https://github.com/liabru/matter-js/pull/1238))
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* Reduced memory garbage collection
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* Bug fixes and improvements see [changelog](https://github.com/liabru/matter-js/blob/0.20.0/CHANGELOG.md)
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# Changes
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See the release [compare page](https://github.com/liabru/matter-js/compare/0.19.0...0.20.0) and the [changelog](https://github.com/liabru/matter-js/blob/0.20.0/CHANGELOG.md) for a detailed list of changes.
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# Migration
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`Matter.Runner` related changes [#1254](https://github.com/liabru/matter-js/pull/1254):
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* `Matter.Runner` now defaults to a fixed deterministic timestep and support for non-fixed timestep is removed
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* Optionally set your performance budgets `runner.maxFrameTime` (see docs)
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* Note that `Matter.Runner` can now call zero, one, or multiple engine updates and events per display frame (see docs)
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* If needed set up your polyfill for `window.requestAnimationFrame`
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* See `Matter.Runner` updated docs throughout
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Performance related changes [#1238](https://github.com/liabru/matter-js/pull/1238):
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* `Matter.Collision` use `collision.supportCount` instead of `collision.supports.length` for active support count
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* `Matter.Pair` use `pair.contacts` instead of `pair.activeContacts`
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* `Matter.Pair` use `pair.contactCount` instead of `pair.contacts.length` for active contact count
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* `Pair.id` format has changed
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# Comparison
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For more information see [comparison method](https://github.com/liabru/matter-js/pull/794).
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```ocaml
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Output sample comparison estimates of 44 examples against previous release matter-js@0.19.0:
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Similarity 99.80% Overlap -1.92% Filesize +3.38% 81.58 KB
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airFriction · · avalanche ● · ballPool ● · bridge ● · car ● · catapult ● ·
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chains ● · circleStack · · cloth ● · collisionFiltering ● · compositeManipulation ● ·
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compound · · compoundStack ● · concave ● · constraints ● · doublePendulum · ·
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events ● · friction · · gravity ● · gyro ● · manipulation ● ◆
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mixed ● · newtonsCradle · · pyramid ● · ragdoll ● · raycasting ● ·
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remove ● ◆ restitution · · rounded ● · sensors · · sleeping ● ◆
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slingshot ● · softBody ● · sprites ● · stack · · staticFriction ● ·
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stats ● · stress ● · stress2 ● · stress3 ● · stress4 ● ·
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timescale ● · views ● · wreckingBall ● ·
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where for the sample · no change detected ● extrinsics changed ◆ intrinsics changed
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```
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# Contributors ♥︎
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Many thanks to the [contributors](https://github.com/liabru/matter-js/compare/0.19.0...0.20.0) of this release, [past contributors](https://github.com/liabru/matter-js/graphs/contributors) as well those involved in the [community](https://github.com/liabru/matter-js/issues) for your input and support.
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