- Migrated the code to typescript
- TypeScript definitions added
- wSet/wAdd/wSub(a, v, b, w) replaced with combine/setCombine/addCombine/subCombine(a, v, b, w)
- wSet/wAdd/wSub(a, v) replaced with mul/setMul/addMul/subMul(a, v)
- Joints constructors cleanup
- source code directory layout changed, classes moved around!
- b2Class renamed to Class
- Dumping is removed, Drawing is moved to tesbed
- GrowableStack replaced with native array, Timer is changed
- Math is changed and split
- Contact and Collide classes merged, Contact registration/creation is changes
- Shape.computeDistanceProxy is added
- Collision and WorldCallback files merged with others
- TestOverlap moved from Collision to Distance
- Manifold files is added, WorldManifold.Initialize moved to Manifold.getWorldManifold
- ContactFilter.ShouldCollide moved to Fixture?
- ContactSolver/VelocityConstraint/PositionConstraint merged with Contact
- ContactManager/ContactListener merged into World (and Contact)
- Island/World.Solve/SolveTOI moved to new Solver
- Position/Velocity correction objects assigned to owner bodies
- binary flags changes to boolean fields (awakeFlag, autoSleepFlag, bulletFlag, fixedRotationFlag, activeFlag, enabledFlag, islandFlag, touchingFlag, filterFlag, bulletHitFlag, toiFlag, clearForces, newFixture, locked)
- Body.Is[Type]/Set[Type] added
- Shape, Body and Joint string types ('circle', 'dynamic', 'mouse-joint', etc.)
- Vec2.Min/Max renamed to Vec2.Upper/Lower and several other methods added
- Distance method, DistanceInput/Output and SimplexCache merged into a stateful Distance class
- Fixture.Filter merged with Fixture
- World listeners changed to events: PostSolve, PreSolve, EndContact, BeginContact, SayGoodby to post-solve, pre-solve, end-contact, begin-contact, remove-body, remove-joint, remove-fixture
- Callbacks classes changed to functions: DynamicTree.query DynamicTree.rayCast BroadPhase.updatePairs BroadPhase.rayCast BroadPhase.query World.queryAAB World.rayCast