cpPolyShape

Functions
cpPolyShape *	cpPolyShapeAlloc (void)
	Allocate a polygon shape.
cpPolyShape *	cpPolyShapeInit (cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset)
	Initialize a polygon shape. More...
cpPolyShape *	cpPolyShapeInit2 (cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius)
	Initialize a polygon shape. More...
cpShape *	cpPolyShapeNew (cpBody *body, int numVerts, const cpVect *verts, cpVect offset)
	Allocate and initialize a polygon shape. More...
cpShape *	cpPolyShapeNew2 (cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius)
	Allocate and initialize a polygon shape. More...
cpPolyShape *	cpBoxShapeInit (cpPolyShape *poly, cpBody *body, cpFloat width, cpFloat height)
	Initialize a box shaped polygon shape.
cpPolyShape *	cpBoxShapeInit2 (cpPolyShape *poly, cpBody *body, cpBB box)
	Initialize an offset box shaped polygon shape.
cpPolyShape *	cpBoxShapeInit3 (cpPolyShape *poly, cpBody *body, cpBB box, cpFloat radius)
	Initialize an offset box shaped polygon shape.
cpShape *	cpBoxShapeNew (cpBody *body, cpFloat width, cpFloat height)
	Allocate and initialize a box shaped polygon shape.
cpShape *	cpBoxShapeNew2 (cpBody *body, cpBB box)
	Allocate and initialize an offset box shaped polygon shape.
cpShape *	cpBoxShapeNew3 (cpBody *body, cpBB box, cpFloat radius)
	Allocate and initialize an offset box shaped polygon shape.
cpBool	cpPolyValidate (const cpVect *verts, const int numVerts)
	Check that a set of vertexes is convex and has a clockwise winding. More...
int	cpPolyShapeGetNumVerts (const cpShape *shape)
	Get the number of verts in a polygon shape.
cpVect	cpPolyShapeGetVert (const cpShape *shape, int idx)
	Get the ith vertex of a polygon shape.
cpFloat	cpPolyShapeGetRadius (const cpShape *shape)
	Get the radius of a polygon shape.

Detailed Description

Function Documentation

cpPolyShape* cpPolyShapeInit	(	cpPolyShape *	poly,
		cpBody *	body,
		int	numVerts,
		const cpVect *	verts,
		cpVect	offset
	)

Initialize a polygon shape.

A convex hull will be created from the vertexes.

cpPolyShape* cpPolyShapeInit2	(	cpPolyShape *	poly,
		cpBody *	body,
		int	numVerts,
		const cpVect *	verts,
		cpVect	offset,
		cpFloat	radius
	)

Initialize a polygon shape.

A convex hull will be created from the vertexes.

cpShape* cpPolyShapeNew	(	cpBody *	body,
		int	numVerts,
		const cpVect *	verts,
		cpVect	offset
	)

Allocate and initialize a polygon shape.

A convex hull will be created from the vertexes.

cpShape* cpPolyShapeNew2	(	cpBody *	body,
		int	numVerts,
		const cpVect *	verts,
		cpVect	offset,
		cpFloat	radius
	)

Allocate and initialize a polygon shape.

A convex hull will be created from the vertexes.

cpBool cpPolyValidate	(	const cpVect *	verts,
		const int	numVerts
	)

Check that a set of vertexes is convex and has a clockwise winding.

NOTE: Due to floating point precision issues, hulls created with cpQuickHull() are not guaranteed to validate!