CObjectManager Class Reference

The object manager. More...

#include <ObjectManager.h>

Inheritance diagram for CObjectManager:

Collaboration diagram for CObjectManager:

Public Member Functions
	~CObjectManager ()
	Destructor.
Shapes::CShape *	AddShape (Shapes::CShapeDesc *, const CObjDesc &)
	Add shape.
void	Move ()
	Move all objects.
void	Draw ()
	Draw all objects.
void	DrawOutlines ()
	Draw outlines of all objects.
void	MakeWorldEdges ()
	Create shapes for world edges.
void	MakeShapes ()
	Create shapes.
void	LeftFlip (bool)
	Flip left flipper.
void	RightFlip (bool)
	Flip right flipper.

Private Member Functions
Shapes::CShape *	MakeShape (Shapes::CShapeDesc *, const CObjDesc &)
	Make a shape.
void	BroadPhase ()
	Broad phase collision detection and response.
bool	NarrowPhase (Shapes::CShape *, Shapes::CDynamicCircle *)
	Narrow phase collision detection and response.
void	MakeBumper (const Vector2 &, float, eSprite, eSprite, eSound)
	Make a bumper.
void	MakeBollard (const Vector2 &)
	Make a bollard.
Shapes::CCompoundShape *	MakeFlipper (const Vector2 &, const Vector2 &, float)
	Make a flipper.
void	MakeThingL ()
	Make a thing (left).
void	MakeThingR ()
	Make a thing (right).

Private Attributes
std::vector< Shapes::CShape * >	m_stdShapes [(UINT) Shapes::eMotion::Size]
	Array of lists of shapes.
std::vector< CObject * >	m_stdObjects
	Object list.
CGate *	m_pLeftGate = nullptr
	Pointer to left gate.
CGate *	m_pRightGate = nullptr
	Pointer to right gate.
Shapes::CAabb2D	m_cAABB
	AABB for the whole window.
CFlipper *	m_pLeftFlipper = nullptr
	Pointer to left flipper.
CFlipper *	m_pRightFlipper = nullptr
	Pointer to righ t flipper.

Additional Inherited Members
Static Protected Attributes inherited from CCommon
static Sage::CSpriteRenderer *	m_pRenderer = nullptr
	Pointer to the renderer.
static CObjectManager *	m_pObjectManager = nullptr
	Pointer to the object manager.
static UINT	m_nMIterations = 4
	Number of motion iterations.
static UINT	m_nCIterations = 1
	Number of collision iterations.
static float	m_fFrequency = 60.0f*m_nMIterations
	Frequency, number of physics iterations per second.
static eDrawMode	m_eDrawMode = eDrawMode::Background
	Draw mode.
static bool	m_bBallInPlay = false
	Is there a ball currently in play?
static UINT	m_nScore = 0
	Current score.

Detailed Description

A managed collection of all of the game objects.

Constructor & Destructor Documentation

~CObjectManager()

CObjectManager::~CObjectManager

(

)

The destructor clears the shape lists, which destructs all of the shapes in them.

Member Function Documentation

AddShape()

Shapes::CShape * CObjectManager::AddShape	(	Shapes::CShapeDesc *	sd,
		const CObjDesc &	od )

Creates a new shape and pushes a contact descriptor for that shape into the shape list.

Parameters

sd	Pointer to a shape descriptor.
od	Object descriptor.

Returns

Pointer to created shape.

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BroadPhase()

void CObjectManager::BroadPhase ( )

private

Do collision detection for all dynamic shapes against all static and kinematic shapes, and against all dynamic shapes that appear after it in the dynamic shape list.

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Draw()

void CObjectManager::Draw

(

)

Draw the game objects using Painter's Algorithm. The background is drawn first, then the game objects are asked to draw themselves in the order that they are in the object list. That is, they are drawn from back to front.

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DrawOutlines()

void CObjectManager::DrawOutlines

(

)

Draw the outlines of the shapes in all objects.

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LeftFlip()

void CObjectManager::LeftFlip

(

bool

bUp

)

If left flipper isn't moving up, set its rotational velocity to ROTSPEED (with the correct sign indicating direction), and play a sound.

Parameters

bUp	true for up flip, false for down flip.

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MakeBollard()

void CObjectManager::MakeBollard ( const Vector2 & p )

private

A bollard is one of the long skinny things at the top.

Parameters

p

Position.

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MakeBumper()

void CObjectManager::MakeBumper ( const Vector2 & p, float e, eSprite unlit, eSprite lit, eSound snd )

private

A bumper is a round thing that propels the balls at great speed.

Parameters

p	Position.
e	Elasticity.
unlit	Unlit sprite index.
lit	Lit sprite index.
snd	Collision sound index.

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MakeFlipper()

Shapes::CCompoundShape * CObjectManager::MakeFlipper ( const Vector2 & p, const Vector2 & d, float a )

private

Make a compound shape for a flipper, which is made up of two circles and two line segments tangent to the circles.

Parameters

p	Position of center of rotation.
d	Offset from position to center of sprite.
a	Initial orientation.

Returns

Pointer to the created compound shape.

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MakeShape()

Shapes::CShape * CObjectManager::MakeShape ( Shapes::CShapeDesc * sd, const CObjDesc & od )

private

Create a new shape and a contact descriptor for that shape.

Parameters

sd	Pointer to a shape descriptor.
od	An object descriptor.

Returns

Pointer to a new contact descriptor.

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MakeShapes()

void CObjectManager::MakeShapes

(

)

Make the static shapes for the things in the world. As with most physics code, this function is long and tedious, but it's important to get the details right.

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MakeThingL()

void CObjectManager::MakeThingL ( )

private

I don't know what to call it. One of the things on the left and right of the bollards at the top of the play area. This is the left one.

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MakeThingR()

void CObjectManager::MakeThingR ( )

private

I don't know what to call it. One of the things on the left and right of the bollards at the top of the play area. This is the right one.

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MakeWorldEdges()

void CObjectManager::MakeWorldEdges

(

)

Make the static shapes for the world boundaries. As with most physics code, this function is long and tedious, but it's important to get the details right.

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Move()

void CObjectManager::Move

(

)

Move all dynamic and kinematic shapes and perform broad phase collision detection and response.

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NarrowPhase()

bool CObjectManager::NarrowPhase ( Shapes::CShape * pShape, Shapes::CDynamicCircle * pCirc )

private

Check whether a shape collides with a dynamic circle and make response.

Parameters

pShape	Pointer to a static or kinematic shape.
pCirc	Pointer to moving circle.

Returns

true if there was a collision.

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RightFlip()

void CObjectManager::RightFlip

(

bool

bUp

)

If right flipper isn't moving up, set its rotational velocity to ROTSPEED (with the correct sign indicating direction), and play a sound.

Parameters

bUp	true for up flip, false for down flip.

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