C# Class Box2D.Collision.Shapes.PolygonShape

A convex polygon shape. Polygons have a maximum number of vertices equal to _maxPolygonVertices. In most cases you should not need many vertices for a convex polygon.

Inheritance: Shape

Show file Open project: gerich-home/box2dnet Class Usage Examples

Public Methods

Method	Description
CentroidToOut ( Transform xf, Vec2 result ) : Vec2	Get the centroid and apply the supplied transform.
Clone ( ) : Shape
ComputeAABB ( AABB aabb, Transform xf, int childIndex ) : void
ComputeCentroidToOut ( Vec2 vs, int count, Vec2 result ) : void
ComputeMass ( MassData massData, float density ) : void
GetCentroid ( Transform xf ) : Vec2	Get the centroid and apply the supplied transform.
GetVertex ( int index ) : Vec2	Get a vertex by index.
PolygonShape ( ) : System
Raycast ( RayCastOutput output, RayCastInput input, Transform xf, int childIndex ) : bool
Set ( Vec2 vertices, int count ) : void	Create a convex hull from the given array of points. The count must be in the range [3, Settings.maxPolygonVertices].
Set ( Vec2 verts, int num, Vec2Array vecPool, IntArray intPool ) : void	Create a convex hull from the given array of points. The count must be in the range [3, Settings.maxPolygonVertices]. This method takes an arraypool for pooling
SetAsBox ( float hx, float hy ) : void	Build vertices to represent an axis-aligned box.
SetAsBox ( float hx, float hy, Vec2 center, float angle ) : void	Build vertices to represent an oriented box.
SetAsEdge ( Vec2 v1, Vec2 v2 ) : void	Set this as a single edge.
TestPoint ( Transform xf, Vec2 p ) : bool
Validate ( ) : bool	Validate convexity. This is a very time consuming operation.

Method Details

CentroidToOut() public method

Get the centroid and apply the supplied transform.

public CentroidToOut ( Transform xf, Vec2 result ) : Vec2
xf	Box2D.Common.Transform
result	Box2D.Common.Vec2
return	Box2D.Common.Vec2

Clone() public method

public Clone ( ) : Shape
return	Shape

ComputeAABB() public method

public ComputeAABB ( AABB aabb, Transform xf, int childIndex ) : void
aabb	AABB
xf	Box2D.Common.Transform
childIndex	int
return	void

ComputeCentroidToOut() public method

public ComputeCentroidToOut ( Vec2 vs, int count, Vec2 result ) : void
vs	Box2D.Common.Vec2
count	int
result	Box2D.Common.Vec2
return	void

ComputeMass() public method

public ComputeMass ( MassData massData, float density ) : void
massData	MassData
density	float
return	void

GetCentroid() public method

Get the centroid and apply the supplied transform.

public GetCentroid ( Transform xf ) : Vec2
xf	Box2D.Common.Transform
return	Box2D.Common.Vec2

GetVertex() public method

Get a vertex by index.

public GetVertex ( int index ) : Vec2
index	int
return	Box2D.Common.Vec2

PolygonShape() public method

public PolygonShape ( ) : System
return	System

Raycast() public method

public Raycast ( RayCastOutput output, RayCastInput input, Transform xf, int childIndex ) : bool
output	RayCastOutput
input	RayCastInput
xf	Box2D.Common.Transform
childIndex	int
return	bool

Set() public method

Create a convex hull from the given array of points. The count must be in the range [3, Settings.maxPolygonVertices].

public Set ( Vec2 vertices, int count ) : void
vertices	Box2D.Common.Vec2
count	int
return	void

Set() public method

Create a convex hull from the given array of points. The count must be in the range [3, Settings.maxPolygonVertices]. This method takes an arraypool for pooling

public Set ( Vec2 verts, int num, Vec2Array vecPool, IntArray intPool ) : void
verts	Box2D.Common.Vec2
num	int
vecPool	Box2D.Pooling.Arrays.Vec2Array
intPool	Box2D.Pooling.Arrays.IntArray
return	void

SetAsBox() public method

Build vertices to represent an axis-aligned box.

public SetAsBox ( float hx, float hy ) : void
hx	float	the half-width.
hy	float	the half-height.
return	void

SetAsBox() public method

Build vertices to represent an oriented box.

public SetAsBox ( float hx, float hy, Vec2 center, float angle ) : void
hx	float	the half-width.
hy	float	the half-height.
center	Box2D.Common.Vec2	the center of the box in local coordinates.
angle	float	the rotation of the box in local coordinates.
return	void

SetAsEdge() public method

Set this as a single edge.

public SetAsEdge ( Vec2 v1, Vec2 v2 ) : void
v1	Box2D.Common.Vec2
v2	Box2D.Common.Vec2
return	void

TestPoint() public method

public TestPoint ( Transform xf, Vec2 p ) : bool
xf	Box2D.Common.Transform
p	Box2D.Common.Vec2
return	bool

Validate() public method

Validate convexity. This is a very time consuming operation.

public Validate ( ) : bool
return	bool