Box2D 2.4.1
A 2D physics engine for games
Public Member Functions | Public Attributes | List of all members
b2CircleShape Class Reference

A solid circle shape. More...

#include <b2_circle_shape.h>

Inheritance diagram for b2CircleShape:
b2Shape

Public Member Functions

b2Shape * Clone (b2BlockAllocator *allocator) const override
 Implement b2Shape. More...
 
int32 GetChildCount () const override
 
bool TestPoint (const b2Transform &transform, const b2Vec2 &p) const override
 Implement b2Shape. More...
 
bool RayCast (b2RayCastOutput *output, const b2RayCastInput &input, const b2Transform &transform, int32 childIndex) const override
 
void ComputeAABB (b2AABB *aabb, const b2Transform &transform, int32 childIndex) const override
 
void ComputeMass (b2MassData *massData, float density) const override
 
- Public Member Functions inherited from b2Shape
virtual b2Shape * Clone (b2BlockAllocator *allocator) const =0
 Clone the concrete shape using the provided allocator. More...
 
Type GetType () const
 
virtual int32 GetChildCount () const =0
 Get the number of child primitives. More...
 
virtual bool TestPoint (const b2Transform &xf, const b2Vec2 &p) const =0
 
virtual bool RayCast (b2RayCastOutput *output, const b2RayCastInput &input, const b2Transform &transform, int32 childIndex) const =0
 
virtual void ComputeAABB (b2AABB *aabb, const b2Transform &xf, int32 childIndex) const =0
 
virtual void ComputeMass (b2MassData *massData, float density) const =0
 

Public Attributes

b2Vec2 m_p
 Position.
 
- Public Attributes inherited from b2Shape
Type m_type
 
float m_radius
 

Additional Inherited Members

- Public Types inherited from b2Shape
enum  Type {
  e_circle = 0 , e_edge = 1 , e_polygon = 2 , e_chain = 3 ,
  e_typeCount = 4
}
 

Detailed Description

A solid circle shape.

Member Function Documentation

◆ Clone()

b2Shape * b2CircleShape::Clone ( b2BlockAllocator *  allocator) const
overridevirtual

Implement b2Shape.

Implements b2Shape.

◆ ComputeAABB()

void b2CircleShape::ComputeAABB ( b2AABB *  aabb,
const b2Transform &  transform,
int32  childIndex 
) const
overridevirtual
See also
b2Shape::ComputeAABB

Implements b2Shape.

◆ ComputeMass()

void b2CircleShape::ComputeMass ( b2MassData *  massData,
float  density 
) const
overridevirtual
See also
b2Shape::ComputeMass

Implements b2Shape.

◆ GetChildCount()

int32 b2CircleShape::GetChildCount ( ) const
overridevirtual
See also
b2Shape::GetChildCount

Implements b2Shape.

◆ RayCast()

bool b2CircleShape::RayCast ( b2RayCastOutput *  output,
const b2RayCastInput &  input,
const b2Transform &  transform,
int32  childIndex 
) const
overridevirtual

Implement b2Shape.

Note
because the circle is solid, rays that start inside do not hit because the normal is not defined.

Implements b2Shape.

◆ TestPoint()

bool b2CircleShape::TestPoint ( const b2Transform &  transform,
const b2Vec2 &  p 
) const
overridevirtual

Implement b2Shape.

Implements b2Shape.

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