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CHANGELOG.md

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Current stable release: v0.14.0

Develop trunk changelog:

  • Bumped target Swift version to 5.0.
  • Now the library is distributed as a Swift Package, and the Cocoapods version is no longer maintained.
  • PointMass is now a struct type. To change properties of individual point masses, use Body.applyForce(_:toPointMassAt:), Body.applyVelocity(_:toPointMassAt:), Body.setVelocity(_:ofPointMassAt:), and Body.setPosition(_:ofPointMassAt:).
  • Now BodyComponent.accumulateExternalForces expects a World parameter as well.
  • Deprecated BodyComponent.accumulateExternalForces(on:relaxing:).

Stable Releases

v0.14.0:

  • Bumped target Swift version to 4.2.

v0.13.0:

  • Bumped target Swift version to 4.1.
  • Renamed JointLinkType to JointLink.
  • Removed body parameter from init from body component classes.

v0.12.0:

  • Fixing me meddling w/ pushed tags gone wrong ‌‌ఠి.ఠిన

v0.11.0:

  • Deprecated methods where removed.
  • Adding optional plasticity settings to internal springs and spring body joints. Plasticity permanently deforms a spring's resting distance over time as it stretches past a limiting yield. Plasticity is disabled by default.
  • Correcting parameter lables/orderings in SpringComponent.
  • Adding method Body.withComponent<T: BodyComponent>(ofType:, do:) that fetches a body component of a specified type and passes it to a closure, if it exists within a body.
  • Fixing Body.updateAABB() w/ non-static bodies w/ forceUpdate flag set to false.
  • Fixing World.update() calling Body.updateEdgesAndNormals() one more time than necessary.

v0.10.0:

This is a breaking release. See bellow BodyComponent and CollisionObserver changes.

  • Adding World.relaxWorld() and World.relaxBodies() that allows relaxing all/a set of bodies into a more proper rest shape that will not 'pop' into their rest shape when starting to simulate. Can be called at any time during simulaton.
  • Making BodyComponent a protocol instead of a class.
  • Removing deprecated CollisionObserver.bodiesDidCollide(_ info: BodyCollisionInformation) protocol method.

v0.9.1:

  • Adding macOS to supported platforms.

v0.9.0:

This release affects behavior of simulations, specially ones using EdgeJointLinks!

  • Allowing rest distance of internal body springs to be expressed using RestDistance, same way as body joints.
  • Correcting implementation of edge link to properly calculate the mass of the link, and to apply proper torque on links that lie exactly half-way across the edge. This makes the edge act in a more natural way by applying proper torque to the affected body, as well as making it behave exactly as a PointJointLink when set at edge ratio 0 or 1.

v0.8.0:

  • Replacing '...' operator for ranged resting distance for body constraints with '<->' operator.
  • Marking Vector2's inlineable implementations with @inline(__always) instead of @_transparent (easier to debug, as well).

v0.5.1:

  • Using unchecked arithmetic operators in some tight loops that we know won't overlow under reasonable circumstances.

v0.5.0:

  • Making corrections to method parameter labeling on Vector2 methods to make them more idiomatic to swift.
  • Adding World.bodiesIntersecting(closedShape:at:) to query bodies that intersect a specified closed shape in world space.
  • Adding @_transparent annotations to some members of Vector2 that really don't have to be opaque.

Note: Some operations with transformation of Vector2 lists using ClosedShape w/ rotations might become slightly more imprecise due to usage of Matrices to reduce calls to cos/sin.

v0.4.0:

  • Fixing crash issue with nan floats generated during body point mass normal calculation.
  • Adding support for Vector2 affine transformations using simd to allow speeding up operations.
  • Now the optimized build builds with -Owholemodule.
  • Added ClosedShape.create static method.

v0.3.0:

  • Re-working API of ClosedShape to flow more naturally when coding.
  • Re-working BodyJoint.restDistance property to be an enumeration with two distinct values: case fixed(CGFloat) and case ranged(min: CGFloat, max: CGFloat). This change simply aims to collapse the old restDistance and maxRestDistance into a more cohese format.
    • This enum can be created by int/double literals and from the range operator ... between two CGFloat values.
  • Adding a small fix for a case where NaN would cause crashes during collision resolving.

v0.2.0:

  • First public Cocoapods release.