C# Class FarseerPhysics.Collision.Shapes.ChainShape

A chain shape is a free form sequence of line segments. The chain has two-sided collision, so you can use inside and outside collision. Therefore, you may use any winding order. Connectivity information is used to create smooth collisions. WARNING: The chain will not collide properly if there are self-intersections.

Inheritance: Shape

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Public Properties

Property	Type	Description
vertices	Vertices

Public Methods

Method	Description
ChainShape ( ) : System.Diagnostics	Constructor for ChainShape. By default have 0 in density.
ChainShape ( Vertices vertices, bool createLoop = false ) : System.Diagnostics	Create a new chainshape from the vertices.
CompareTo ( ChainShape shape ) : bool	Compare the chain to another chain
clone ( ) : Shape
computeAABB ( AABB &aabb, Transform &transform, int childIndex ) : void
computeSubmergedArea ( Vector2 &normal, float offset, Transform &xf, Vector2 &sc ) : float
getChildEdge ( int index ) : EdgeShape	Get a child edge.
rayCast ( RayCastOutput &output, RayCastInput &input, Transform &transform, int childIndex ) : bool
setVertices ( Vertices vertices, bool createLoop = false ) : void
testPoint ( Transform &transform, Vector2 &point ) : bool

Protected Methods

Method	Description
computeProperties ( ) : void

Private Methods

Method	Description
getChildEdge ( EdgeShape edge, int index ) : void	This method has been optimized to reduce garbage.

Method Details

ChainShape() public method

Constructor for ChainShape. By default have 0 in density.

public ChainShape ( ) : System.Diagnostics
return	System.Diagnostics

ChainShape() public method

Create a new chainshape from the vertices.

public ChainShape ( Vertices vertices, bool createLoop = false ) : System.Diagnostics
vertices	Vertices	The vertices to use. Must contain 2 or more vertices.
createLoop	bool	Set to true to create a closed loop. It connects the first vertice to the last, and automatically adjusts connectivity to create smooth collisions along the chain.
return	System.Diagnostics

CompareTo() public method

Compare the chain to another chain

public CompareTo ( ChainShape shape ) : bool
shape	ChainShape	The other chain
return	bool

clone() public method

public clone ( ) : Shape
return	Shape

computeAABB() public method

public computeAABB ( AABB &aabb, Transform &transform, int childIndex ) : void
aabb	AABB
transform	Transform
childIndex	int
return	void

computeProperties() protected method

protected computeProperties ( ) : void
return	void

computeSubmergedArea() public method

public computeSubmergedArea ( Vector2 &normal, float offset, Transform &xf, Vector2 &sc ) : float
normal	Microsoft.Xna.Framework.Vector2
offset	float
xf	Transform
sc	Microsoft.Xna.Framework.Vector2
return	float

getChildEdge() public method

Get a child edge.

public getChildEdge ( int index ) : EdgeShape
index	int	The index.
return	EdgeShape

rayCast() public method

public rayCast ( RayCastOutput &output, RayCastInput &input, Transform &transform, int childIndex ) : bool
output	RayCastOutput
input	RayCastInput
transform	Transform
childIndex	int
return	bool

setVertices() public method

public setVertices ( Vertices vertices, bool createLoop = false ) : void
vertices	Vertices
createLoop	bool
return	void

testPoint() public method

public testPoint ( Transform &transform, Vector2 &point ) : bool
transform	Transform
point	Microsoft.Xna.Framework.Vector2
return	bool

Property Details

vertices public_oe property

The vertices. These are not owned/freed by the chain Shape.

public Vertices vertices
return	Vertices