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a 2D rigid body physics engine for the web ▲● ■

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Hi! I'm making a projectile motion simulation for an E-learning website using matter.js. I'm using **render.options.showVelocity** to display object's velocity. But it's so small and hard to see. ![Screenshot 2022-08-06...

Hello, I am developing a game where lots of balls are bouncing from the objects in scene. I need to track how number of times balls bounced from each object....

Hello, this is asked like a million times but; I am trying to make an object bounce infinitely in a no-friction system. The object supposed to bounce is loosing speed...

Found a quirk. Circles at `angle=0` points to the right (expected). but Rectangles with `angle=0` points to the left. # Repro steps: ``` angle = 3 * Math.PI / 4...

wontfix

Upgraded from v0.17.1 to latest to hopefully see some performance upgrades. Verified performance is pretty much the same but there is a nasty bug introduced if you have Engine `enableSleeping`...

bug
alpha-build

Was confused for some time why I could not process the mousewheel source event value when I realized that it's not being created even though a default of `null` is...

bug

I'm working on [this](https://perfectly-balanced.luisafk.repl.co) game and there's a bug that happens sometimes which causes this error to happen in the console: Basically this error happens when a non-static body collides...

need-more-info

--- **If you need fast moving or thin bodies a simple and robust solution is to [sub-step](https://github.com/liabru/matter-js/issues/5#issuecomment-1050738814) using multiple updates per frame:** See the example here: https://github.com/liabru/matter-js/issues/5#issuecomment-1050738814 As well as...

feature-request

Hello! First of all, thank you for this great library! ❤️ I enjoy playing around with it so far. ### Used dependencies - `"matter-js": "^0.18.0"` - `"@types/matter-js": "^0.17.7"` ### Background...

question

Hello, thank you for this wonderful library. We use Matter extensively at Codeverse (we teach kids how to code using a proprietary language called KidScript) We recently upgraded from v10...

investigate