C# Class Project290.Physics.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. Warning: You cannot reuse fixtures.

Inheritance: IDisposable

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Public Properties

Property	Type	Description
AfterCollision	AfterCollisionEventHandler
BeforeCollision	BeforeCollisionEventHandler
OnCollision	OnCollisionEventHandler
OnSeparation	OnSeparationEventHandler
Proxies	Project290.Physics.Dynamics.FixtureProxy[]
ProxyCount	int

Public Methods

Method	Description
Dispose ( ) : void
Fixture ( Body body, Shape shape ) : System
Fixture ( Body body, Shape shape, Object userData ) : System
GetAABB ( AABB &aabb, int childIndex ) : void	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	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.
TestPoint ( Vector2 &point ) : bool	Test a point for containment in this fixture.

Private Methods

Method	Description
CreateProxies ( BroadPhase broadPhase, Transform &xf ) : void
Destroy ( ) : void
DestroyProxies ( BroadPhase broadPhase ) : void
Synchronize ( BroadPhase broadPhase, Transform &transform1, Transform &transform2 ) : void

Method Details

Dispose() public method

public Dispose ( ) : void
return	void

Fixture() public method

public Fixture ( Body body, Shape shape ) : System
body	Body
shape	Project290.Physics.Collision.Shapes.Shape
return	System

Fixture() public method

public Fixture ( Body body, Shape shape, Object userData ) : System
body	Body
shape	Project290.Physics.Collision.Shapes.Shape
userData	Object
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 ( AABB &aabb, int childIndex ) : void
aabb	Project290.Physics.Collision.AABB	The aabb.
childIndex	int	Index of the child.
return	void

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
return	Project290.Physics.Collision.Shapes.MassData

RayCast() public method

Cast a ray against this Shape.

public RayCast ( RayCastOutput &output, RayCastInput &input, int childIndex ) : bool
output	Project290.Physics.Collision.RayCastOutput	The ray-cast results.
input	Project290.Physics.Collision.RayCastInput	The ray-cast input parameters.
childIndex	int	Index of the child.
return	bool

TestPoint() public method

Test a point for containment in this fixture.

public TestPoint ( Vector2 &point ) : bool
point	Vector2	A point in world coordinates.
return	bool

Property Details

AfterCollision public_oe property

Fires after two shapes has collided and are solved. This gives you a chance to get the impact force.

public AfterCollisionEventHandler AfterCollision
return	AfterCollisionEventHandler

BeforeCollision public_oe property

Fires when two fixtures are close to each other. Due to how the broadphase works, this can be quite inaccurate as shapes are approximated using AABBs.

public BeforeCollisionEventHandler BeforeCollision
return	BeforeCollisionEventHandler

OnCollision public_oe property

Fires when two shapes collide and a contact is created between them. Note that the first fixture argument is always the fixture that the delegate is subscribed to.

public OnCollisionEventHandler OnCollision
return	OnCollisionEventHandler

OnSeparation public_oe property

Fires when two shapes separate and a contact is removed between them. Note that the first fixture argument is always the fixture that the delegate is subscribed to.

public OnSeparationEventHandler OnSeparation
return	OnSeparationEventHandler

Proxies public_oe property

public FixtureProxy[],Project290.Physics.Dynamics Proxies
return	Project290.Physics.Dynamics.FixtureProxy[]

ProxyCount public_oe property

public int ProxyCount
return	int