World definition used to create a simulation world. More...

Public Member Functions
	WorldDef ()
	Creates a world definition with the default values.

	WorldDef (Vec2 gravity, float restitutionThreshold=0.0f, float hitEventThreshold=0.0f, float contactHertz=0.0f, float contactDampingRatio=0.0f, float maxContactPushSpeed=0.0f, float jointHertz=0.0f, float jointDampingRatio=0.0f, float maximumLinearSpeed=0.0f, bool enableSleep=true, bool enableContinuous=true, object? userData=null, FrictionCallback? frictionCallback=null, RestitutionCallback? restitutionCallback=null, EnqueueTaskCallback? enqueueTask=null, FinishTaskCallback? finishTask=null, object? userTaskContext=null)
	Construct a new world definition with the supplied values.

Properties
static WorldDef	Default `[get]`
	Creates a world definition with the default values.

ref Vec2	Gravity `[get]`
	Gravity vector. Box2D has no up-vector defined.

ref float	RestitutionThreshold `[get]`
	Restitution speed threshold, usually in m/s. Collisions above this speed have restitution applied (will bounce).

ref float	HitEventThreshold `[get]`
	Threshold speed for hit events. Usually meters per second.

ref float	ContactHertz `[get]`
	Contact stiffness. Cycles per second. Increasing this increases the speed of overlap recovery, but can introduce jitter.

ref float	ContactDampingRatio `[get]`
	Contact bounciness. Non-dimensional. You can speed up overlap recovery by decreasing this with the trade-off that overlap resolution becomes more energetic.

ref float	MaxContactPushSpeed `[get]`
	This parameter controls how fast overlap is resolved and usually has units of meters per second. This only puts a cap on the resolution speed. The resolution speed is increased by increasing the hertz and/or decreasing the damping ratio.

ref float	JointHertz `[get]`
	Joint stiffness. Cycles per second.

ref float	JointDampingRatio `[get]`
	Joint bounciness. Non-dimensional.

ref float	MaximumLinearSpeed `[get]`
	Maximum linear speed. Usually meters per second.

ref FrictionCallback	FrictionCallback `[get]`
	Optional mixing callback for friction. The default uses sqrt(frictionA * frictionB).

ref RestitutionCallback	RestitutionCallback `[get]`
	Optional mixing callback for restitution. The default uses max(restitutionA, restitutionB).

bool	EnableSleep `[get, set]`
	Can bodies go to sleep to improve performance.

bool	EnableContinuous `[get, set]`
	Enable continuous collision.

int	WorkerCount `[get, set]`
	Number of workers to use with the provided task system. Box2D performs best when using only performance cores and accessing a single L2 cache. Efficiency cores and hyper-threading provide little benefit and may even harm performance. Note: Box2D does not create threads. This is the number of threads your applications has created that you are allocating to World.Step() Warning: Do not modify the default value unless you are also providing a task system and providing task callbacks (enqueueTask and finishTask).

ref EnqueueTaskCallback	EnqueueTask `[get]`
	Callback function to spawn tasks.

ref FinishTaskCallback	FinishTask `[get]`
	Callback function to finish a task.

object?	UserData `[get, set]`
	User data.

object?	UserTaskContext `[get, set]`
	User context that is provided to enqueueTask and finishTask.

Detailed Description

World definition used to create a simulation world.

Constructor & Destructor Documentation

◆ WorldDef()

Box2D.WorldDef.WorldDef	(	Vec2	gravity,
		float	restitutionThreshold = `0::0f`,
		float	hitEventThreshold = `0::0f`,
		float	contactHertz = `0::0f`,
		float	contactDampingRatio = `0::0f`,
		float	maxContactPushSpeed = `0::0f`,
		float	jointHertz = `0::0f`,
		float	jointDampingRatio = `0::0f`,
		float	maximumLinearSpeed = `0::0f`,
		bool	enableSleep = `true`,
		bool	enableContinuous = `true`,
		object?	userData = `null`,
		FrictionCallback?	frictionCallback = `null`,
		RestitutionCallback?	restitutionCallback = `null`,
		EnqueueTaskCallback?	enqueueTask = `null`,
		FinishTaskCallback?	finishTask = `null`,
		object?	userTaskContext = `null`
	)

inline

Construct a new world definition with the supplied values.

Parameters

gravity	The gravity vector
restitutionThreshold	Restitution speed threshold
hitEventThreshold	Hit event threshold
contactHertz	Contact stiffness
contactDampingRatio	Contact bounciness
maxContactPushSpeed	Overlap resolution speed
jointHertz	Joint stiffness
jointDampingRatio	Joint bounciness
maximumLinearSpeed	Maximum linear speed
enableSleep	Enable sleep
enableContinuous	Enable continuous collision
userData	User data
frictionCallback	Friction callback
restitutionCallback	Restitution callback
enqueueTask	Enqueue task callback
finishTask	Finish task callback
userTaskContext	User task context

The documentation for this class was generated from the following file:

src/Box2DBindings/Defs/WorldDef.cs

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ WorldDef()