Very surprisingly I found the performance was even better on my Windows 11 gaming rig where I was able to get 60 FPS with > 200 bodies on screen at once! This was not case on a Windows 11 laptop with an integrated GPU. In the built demo app, I'm consistently able to get 60 FPS on my M1 Pro Macbook Pro. I've been pleasantly surprised by the performance of the demo app. I'm not much of an iOS developer but I do plan on adding an iOS version of the included Physics.DebugCanvas that would render the simulation on iOS. Since the engine is 100% Xojo code it will run on all desktop platforms and iOS. I've not tested it on earlier Xojo releases. The engine was developed on a 16' MacBook Pro with an M1 Pro using Xojo 2022 Release 2. I have also saved the project as a binary file so free and lite license users of Xojo can experiment with the module too. The main project is saved in Xojo's 'Project' format since this plays nicely with version control. The DebugCanvas is not intended to be used for a game (it could be better optimised) but it's quite performant nonetheless. This is a drop-in control that will render the physics simulation. Included is the Physics.DebugCanvas class which is a subclass of DesktopCanvas. The Maths module contains some maths-specific methods and constants and the VMaths module contains classes related to vector maths. You'll need to copy these to any projects you want to use the engine in as well. There are two other modules in the project that the Physics module depends on: Maths and VMaths. The engine is entirely contained within the Physics module to make it easy to move between projects. If you download and run the project you'll be presented with a demo app that showcases a few of the engine's features.

Variable body density, friction and restitutionĮverything you need to get started is in this repository.

Multiple joints types including revolute, distance and constant volume.

Stable stacking with a linear time solver.

Continuous collision detection with time of impact solver.

Featuresīox2D is pretty well known but here are some of the features of the engine: It's a direct port of Dart's Forge2D and so tutorials for using both Box2D and Forge2D should be closely compatible with Physics. Physics is a rigid body, high performance physics engine written in 100% native Xojo code.

This Physics module finally brings Erin Catto's amazing Box2D library to Xojo.

Xojo lite license