A circle shape. More...

Inherits PhysicsShape.

Public Member Functions
virtual float	calculateDefaultMoment () override
	Calculate the moment for a circle. More...

float	getRadius () const
	Get the circle's radius. More...

virtual Vec2	getOffset () override
	Get this circle's position offset. More...

Public Member Functions inherited from PhysicsShape
PhysicsBody *	getBody () const
	Get the body that this shape attaches. More...

Type	getType () const
	Return this shape's type. More...

float	getArea () const
	Return this shape's area. More...

float	getMoment () const
	Get this shape's moment. More...

void	setMoment (float moment)
	Set this shape's moment. More...

void	setTag (int tag)
	Set this shape's tag. More...

int	getTag () const
	Get this shape's tag. More...

float	getMass () const
	Get the mass of this shape. More...

void	setMass (float mass)
	Set this shape's mass. More...

float	getDensity () const
	Get this shape's density. More...

void	setDensity (float density)
	Set this shape's density. More...

float	getRestitution () const
	Get this shape's restitution. More...

void	setRestitution (float restitution)
	Set this shape's restitution. More...

float	getFriction () const
	Get this shape's friction. More...

void	setFriction (float friction)
	Set this shape's friction. More...

const PhysicsMaterial &	getMaterial () const
	Get this shape's PhysicsMaterial object. More...

void	setMaterial (const PhysicsMaterial &material)
	Set this shape's material. More...

virtual Vec2	getCenter ()
	Get this shape's center position. More...

bool	containsPoint (const Vec2 &point) const
	Test point is inside this shape or not. More...

void	setCategoryBitmask (int bitmask)
	Set a mask that defines which categories this physics body belongs to. More...

int	getCategoryBitmask () const
	Get a mask that defines which categories this physics body belongs to. More...

void	setContactTestBitmask (int bitmask)
	A mask that defines which categories of bodies cause intersection notifications with this physics body. More...

int	getContactTestBitmask () const
	Get a mask that defines which categories of bodies cause intersection notifications with this physics body. More...

void	setCollisionBitmask (int bitmask)
	A mask that defines which categories of physics bodies can collide with this physics body. More...

int	getCollisionBitmask () const
	Get a mask that defines which categories of physics bodies can collide with this physics body. More...

void	setGroup (int group)
	Set the group of body. More...

int	getGroup ()
	Get the group of body. More...

Public Member Functions inherited from Ref
void	retain ()
	Retains the ownership. More...

void	release ()
	Releases the ownership immediately. More...

Ref *	autorelease ()
	Releases the ownership sometime soon automatically. More...

unsigned int	getReferenceCount () const
	Returns the Ref's current reference count. More...

virtual	~Ref ()
	Destructor. More...

Static Public Member Functions
static PhysicsShapeCircle *	create (float radius, const PhysicsMaterial &material=PHYSICSSHAPE_MATERIAL_DEFAULT, const Vec2 &offset=Vec2(0.0f, 0.0f))
	Creates a PhysicsShapeCircle with specified value. More...

static float	calculateArea (float radius)
	Calculate the area of a circle with specified radius. More...

static float	calculateMoment (float mass, float radius, const Vec2 &offset=Vec2::ZERO)
	Calculate the moment of a circle with specified value. More...

Static Public Member Functions inherited from PhysicsShape
static void	recenterPoints (Vec2 *points, int count, const Vec2 &center=Vec2::ZERO)
	Move the points to the center. More...

static Vec2	getPolygonCenter (const Vec2 *points, int count)
	Get center of the polygon points. More...

Additional Inherited Members
Public Types inherited from PhysicsShape
enum	Type { , POLYGEN = POLYGON, EDGEPOLYGEN = EDGEPOLYGON }

Public Attributes inherited from Ref
unsigned int	_ID
	object id, ScriptSupport need public _ID

int	_luaID
	Lua reference id.

void *	_scriptObject
	scriptObject, support for swift

bool	_rooted
	When true, it means that the object was already rooted.

Detailed Description

A circle shape.

Member Function Documentation

◆ create()

static PhysicsShapeCircle* create	(	float	radius,
		const PhysicsMaterial &	material = `PHYSICSSHAPE_MATERIAL_DEFAULT`,
		const Vec2 &	offset = `Vec2(0.0f, 0.0f)`
	)

static

Creates a PhysicsShapeCircle with specified value.

Parameters

radius	A float number, it is the circle's radius.
material	A PhysicsMaterial object, the default value is PHYSICSSHAPE_MATERIAL_DEFAULT.
offset	A Vec2 object, it is the offset from the body's center of gravity in body local coordinates.

Returns: An autoreleased PhysicsShapeCircle object pointer.

◆ calculateArea()

static float calculateArea ( float radius )

static

Calculate the area of a circle with specified radius.

Parameters

radius A float number

Returns: A float number

◆ calculateMoment()

static float calculateMoment	(	float	mass,
		float	radius,
		const Vec2 &	offset = `Vec2::ZERO`
	)

static

Calculate the moment of a circle with specified value.

Parameters

mass	A float number
radius	A float number
offset	A Vec2 object, it is the offset from the body's center of gravity in body local coordinates.

Returns: A float number

◆ calculateDefaultMoment()

virtual float calculateDefaultMoment ( )

overridevirtual

Calculate the moment for a circle.

Returns: A float number.

Reimplemented from PhysicsShape.

◆ getRadius()

float getRadius ( ) const

Get the circle's radius.

Returns: A float number.

◆ getOffset()

virtual Vec2 getOffset ( )

overridevirtual

Get this circle's position offset.

Returns: A Vec2 object.

Reimplemented from PhysicsShape.

The documentation for this class was generated from the following file:

CCPhysicsShape.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ create()

◆ calculateArea()

◆ calculateMoment()

◆ calculateDefaultMoment()

◆ getRadius()

◆ getOffset()