CMyListener Class Reference

My contact listener.

#include <ContactListener.h>

Inheritance diagram for CMyListener:

Collaboration diagram for CMyListener:

Public Member Functions
void	PreSolve (b2Contact *, const b2Manifold *)
	Presolve function.

Private Member Functions
float	GetSpeed (const b2Vec2 &)
	Get the collision speed.
eSprite	GetBellType ()
	Get a pointer to the bell object in a bell collision.
b2Body *	GetBall ()
	Get a pointer to a ball's body in Physics World.

Private Attributes
b2Body *	m_pBodyA = nullptr
	Pointer to body A.
b2Body *	m_pBodyB = nullptr
	Pointer to body B.

Additional Inherited Members
Static Protected Attributes inherited from CCommon
static b2World *	m_pPhysicsWorld = nullptr
	Pointer to Box2D Physics World.
static CBox2DRenderer *	m_pRenderer = nullptr
	Pointer to Render World.
static CObjectManager *	m_pObjectManager = nullptr
	Pointer to the Object Manager.
static Sage::CParticleEngine2D *	m_pFrontParticleEngine = nullptr
	Pointer to front particle engine.
static Sage::CParticleEngine2D *	m_pBackParticleEngine = nullptr
	Pointer to front particle engine.
static CCannon *	m_pCannon = nullptr
	Pointer to a cannon.
static Vector2	m_vBellPos [NUMBELLS] = {Vector2(0.0f)}
	Positions of bells.
static float	m_fGravity = 20.0f
	Magnitude of gravity in Render World units.
static eDrawMode	m_eDrawMode = eDrawMode::Sprites
	Draw mode.

Member Function Documentation

GetBall()

b2Body * CMyListener::GetBall ( )

private

Get a pointer to the ball object if a ball is colliding with a bell.

Returns

Pointer to a ball if one is colliding with bell, else nullptr.

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GetBellType()

eSprite CMyListener::GetBellType ( )

private

Get the bell type if a bell has been hit.

Returns

Bell type hit, eSprite::None if there is none.

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GetSpeed()

float CMyListener::GetSpeed ( const b2Vec2 & p )

private

Collision speed is proportional to the magnitude of the relative velocity.

Parameters

p	World point.

Returns

Collision speed in Physics World units.

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PreSolve()

void CMyListener::PreSolve	(	b2Contact *	c,
		const b2Manifold *	m )

Presolve function. Renders a colored star at each contact point and plays the appropriate sound, depending on what type of objects are contacting.

Parameters

c	Pointer to the contact.
m	Pointer to the old contact manifold as it was before this contact.

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