CObject Class Reference

The game object. More...

#include <Object.h>

Inheritance diagram for CObject:

Public Member Functions
	CObject (eSprite t, const Vector2 &p)
	Constructor. More...
void	move ()
	Move object. More...
void	draw ()
	Draw object. More...
void	DropParticle (LParticleDesc2D *)
	Drop a particle. More...
void	DeliverImpulse (float, float)
	Deliver an impulse. More...

Private Attributes
Vector2	m_vOldPos
	Previous position. Only needed for Step Mode.
Vector2	m_vVel
	Current velocity.
float	m_fRadius = 0.0f
	Radius.
bool	m_bInPocket = false
	Whether currently in a pocket.

Friends
class	CObjectManager
	Object manager needs access so it can manage.

Additional Inherited Members
Static Protected Attributes inherited from CCommon
static CRenderer *	m_pRenderer = nullptr
	Pointer to the renderer.
static CObjectManager *	m_pObjectManager = nullptr
	Pointer to the object manager.
static LParticleEngine2D *	m_pParticleEngine = nullptr
	Pointer to particle engine.
static bool	m_bShowCollisions = false
	Show ball positions at TOI.
static bool	m_bStepMode = false
	Is in step mode.
static bool	m_bStep = false
	Step flag.
static float	m_fXMargin = 78.0f
	Horizontal margin.
static float	m_fYMargin = 64.0f
	Vertical margin.
static Vector2	m_vMargin = Vector2(m_fXMargin, m_fYMargin)
	Margins.
static Vector2	m_vTopLPocket = Vector2(71, 478)
	Position of top left pocket.
static Vector2	m_vTopRPocket = Vector2(955, 478)
	Position of top right pocket.
static Vector2	m_vTopCPocket = Vector2(514, 478)
	Position of top center pocket.
static Vector2	m_vBotLPocket = Vector2(71, 53)
	Position of bottom left pocket.
static Vector2	m_vBotRPocket = Vector2(955, 53)
	Position of bottom right pocket.
static Vector2	m_vBotCPocket = Vector2(514, 48)
	Position of bottom center pocket.

Detailed Description

The abstract representation of an object. CObjectManager is a friend of this class so that it can access any private members as needed to manage the objects without the need for reader and set functions for each private or protected member variable. This class must contain public member functions move() and draw() to move and draw the object, respectively.

Constructor & Destructor Documentation

CObject()

CObject::CObject	(	eSprite	t,
		const Vector2 &	pos
	)

Create an object, given its sprite type and initial position.

Parameters

t	Type of ball.
pos	Initial position.

Member Function Documentation

DeliverImpulse()

void CObject::DeliverImpulse	(	float	a,
		float	m
	)

React to an impulse of a given angle and magnitude. The velocity vector is instantaneously changed; no need to faff about with forces applied over time.

Parameters

a	Impulse angle.
m	Impulse magnitude.

draw()

void CObject::draw

(

)

Ask the renderer to draw the sprite described in the sprite descriptor. Note that CObject is derived from LBaseObject which is inherited from LSpriteDesc2D. Therefore LSpriteRenderer::Draw(const LSpriteDesc2D*) will accept this as a parameter, automatically down-casting it from CObject* to LSpriteDesc2D*, effectively drawing the object from its sprite descriptor.

DropParticle()

void CObject::DropParticle

(

LParticleDesc2D *

p

)

Drop a particle using the back particle engine provided the object has actually moved in the last frame. This is intended to be used in Step Mode.

move()

void CObject::move

(

)

Move using Euler Integration, applying a constant amount of friction. Stop if the velocity is sufficiently small. Exactly what constitutes "sufficiently small" is hard-coded.