Phaser 3.85.0 Change Log

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matter.js version `0.20.0`

Highlights

added support for high refresh rate displays with fixed timestep in Matter.Runner
added support for sub-stepping for higher quality simulations in Matter.Runner
changed to a fixed timestep by default in Matter.Runner
improved frame pacing and average performance up to ~6% (see #1238)
reduced average memory usage up to ~30% (see #1238)
reduced memory garbage collection
bug fixes and improvements see changelog

Changes

See the release compare page and the changelog for a detailed list of changes.

Migration

Matter.Runner related changes #1254:

Matter.Runner now defaults to a fixed deterministic timestep and support for non-fixed timestep is removed
optionally set your performance budgets runner.maxFrameTime (see docs)
note that Matter.Runner can now call zero, one, or multiple engine updates and events per display frame (see docs)
if needed set up your polyfill for window.requestAnimationFrame
see Matter.Runner updated docs throughout

Performance related changes #1238:

Matter.Collision use collision.supportCount instead of collision.supports.length for active support count
Matter.Pair use pair.contacts instead of pair.activeContacts
Matter.Pair use pair.contactCount instead of pair.contacts.length for active contact count
Pair.id format has changed

Comparison

For more information see comparison method.

Output sample comparison estimates of 44 examples against previous release matter-js@0.19.0:  

Similarity     99.80%    Overlap    -1.92%   Filesize   +3.38%  81.58 KB  

airFriction · · avalanche ● · ballPool ● · bridge ● · car ● · catapult ● · 
chains ● · circleStack · · cloth ● · collisionFiltering ● · compositeManipulation ● · 
compound · · compoundStack ● · concave ● · constraints ● · doublePendulum · · 
events ● · friction · · gravity ● · gyro ● · manipulation ● ◆ 
mixed ● · newtonsCradle · · pyramid ● · ragdoll ● · raycasting ● · 
remove ● ◆ restitution · · rounded ● · sensors · · sleeping ● ◆ 
slingshot ● · softBody ● · sprites ● · stack · · staticFriction ● · 
stats ● · stress ● · stress2 ● · stress3 ● · stress4 ● · 
timescale ● · views ● · wreckingBall ● ·   

where for the sample  · no change detected  ● extrinsics changed  ◆ intrinsics changed

Contributors ♥︎

Many thanks to the contributors of this release, past contributors as well those involved in the community for your input and support.

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