C# Class Box2D.Dynamics.Fixture

A fixture is used to attach a shape to a body for collision detection. A fixture inherits its transform from its parent. Fixtures hold additional non-geometric data such as friction, collision filters, etc. Fixtures are created via Body::CreateFixture.

显示文件 Open project: gerich-home/box2dnet Class Usage Examples

Public Properties

Property	Type	Description
Filter	Filter
IsSensor	bool
Proxies	Box2D.Dynamics.FixtureProxy[]
ProxyCount	int

Public Methods

Method	Description
Create ( Body body, FixtureDef def ) : void
CreateProxies ( BroadPhase broadPhase, Transform xf ) : void
Destroy ( ) : void
DestroyProxies ( BroadPhase broadPhase ) : void	Internal method
Dump ( int bodyIndex ) : void	Dump this fixture to the log file.
Fixture ( ) : System
GetAABB ( int childIndex ) : AABB	Get the fixture's AABB. This AABB may be enlarge and/or stale. If you need a more accurate AABB, compute it using the shape and the body transform.
GetMassData ( MassData massData ) : void	Get the mass data for this fixture. The mass data is based on the density and the shape. The rotational inertia is about the shape's origin.
Raycast ( RayCastOutput output, RayCastInput input, int childIndex ) : bool	Cast a ray against this shape.
Refilter ( ) : void	Call this if you want to establish collision that was previously disabled by ContactFilter::ShouldCollide.
TestPoint ( Vec2 p ) : bool	Test a point for containment in this fixture. This only works for convex shapes.

Protected Methods

Method	Description
Synchronize ( BroadPhase broadPhase, Transform transform1, Transform transform2 ) : void	Internal method

Method Details

Create() public method

public Create ( Body body, FixtureDef def ) : void
body	Body
def	FixtureDef
return	void

CreateProxies() public method

public CreateProxies ( BroadPhase broadPhase, Transform xf ) : void
broadPhase	Box2D.Collision.Broadphase.BroadPhase
xf	Box2D.Common.Transform
return	void

Destroy() public method

public Destroy ( ) : void
return	void

DestroyProxies() public method

Internal method

public DestroyProxies ( BroadPhase broadPhase ) : void
broadPhase	Box2D.Collision.Broadphase.BroadPhase
return	void

Dump() public method

Dump this fixture to the log file.

public Dump ( int bodyIndex ) : void
bodyIndex	int
return	void

Fixture() public method

public Fixture ( ) : System
return	System

GetAABB() public method

Get the fixture's AABB. This AABB may be enlarge and/or stale. If you need a more accurate AABB, compute it using the shape and the body transform.

public GetAABB ( int childIndex ) : AABB
childIndex	int
return	Box2D.Collision.AABB

GetMassData() public method

Get the mass data for this fixture. The mass data is based on the density and the shape. The rotational inertia is about the shape's origin.

public GetMassData ( MassData massData ) : void
massData	Box2D.Collision.Shapes.MassData
return	void

Raycast() public method

Cast a ray against this shape.

public Raycast ( RayCastOutput output, RayCastInput input, int childIndex ) : bool
output	Box2D.Collision.RayCastOutput	the ray-cast results.
input	Box2D.Collision.RayCastInput	the ray-cast input parameters.
childIndex	int
return	bool

Refilter() public method

Call this if you want to establish collision that was previously disabled by ContactFilter::ShouldCollide.

public Refilter ( ) : void
return	void

Synchronize() protected method

Internal method

protected Synchronize ( BroadPhase broadPhase, Transform transform1, Transform transform2 ) : void
broadPhase	Box2D.Collision.Broadphase.BroadPhase
transform1	Box2D.Common.Transform
transform2	Box2D.Common.Transform
return	void

TestPoint() public method

Test a point for containment in this fixture. This only works for convex shapes.

public TestPoint ( Vec2 p ) : bool
p	Box2D.Common.Vec2	a point in world coordinates.
return	bool

Property Details

Filter public_oe property

public Filter,Box2D.Dynamics Filter
return	Filter

IsSensor public_oe property

public bool IsSensor
return	bool

Proxies public_oe property

public FixtureProxy[],Box2D.Dynamics Proxies
return	Box2D.Dynamics.FixtureProxy[]

ProxyCount public_oe property

public int ProxyCount
return	int