CGame Class Reference

The game class. More...

#include <Game.h>

Inheritance diagram for CGame:

Collaboration diagram for CGame:

Public Member Functions
	~CGame ()
	Destructor.
void	Initialize ()
	Initialize the game.
void	ProcessFrame ()
	Process an animation frame.
void	Release ()
	Release the renderer.

Private Member Functions
void	LoadSprites ()
	Start loading sprites.
void	BeginGame ()
	Begin playing the game.
void	KeyboardHandler ()
	The keyboard handler.
void	RenderFrame ()
	Render an animation frame.
void	ProcessState ()
	Process game state.
void	CreateLevel ()
	Create current level.

Private Attributes
eGameState	m_eGameState = eGameState::Loading
	Game state.

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 the renderer.
static CLevel *	m_pLevel = nullptr
	Pointer to current level.
static eLevel	m_eCurLevel = eLevel::Windmill
	Current level.
static eDrawMode	m_eDrawMode = eDrawMode::Sprites
	Draw mode.

Detailed Description

The game class is the object-oriented implementation of the game. This class must contain the following public member functions. Initialize() does initialization and will be run exactly once at the start of the game. ProcessFrame() will be called once per frame to create and render the next animation frame. Release() will be called at game exit but before any destructors are run.

Constructor & Destructor Documentation

~CGame()

CGame::~CGame

(

)

Delete the current level and physics world.

Member Function Documentation

BeginGame()

void CGame::BeginGame ( )

private

Create the first level and set game state to playing.

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CreateLevel()

void CGame::CreateLevel ( )

private

Create the current level.

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Initialize()

void CGame::Initialize

(

)

Set the timer to a fixed time step. Create the renderer and load images. Create physics world.

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KeyboardHandler()

void CGame::KeyboardHandler ( )

private

Poll the keyboard state and respond to the key presses that happened since the last frame.

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LoadSprites()

void CGame::LoadSprites ( )

private

Create a media list Sage::CMediaList of eSprite. For each sprite, insert into the media list a pair consisting of an instance of the sprite enumerated type eSprite and the corresponding string used in the name field in a <sprite> tag in GameSettings.xml. Pass the media list to the renderer for loading.

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ProcessFrame()

void CGame::ProcessFrame

(

)

This function will be called regularly to process and render a frame of animation, which involves the following. Handle keyboard input. Move the game objects in physics world. Render a frame of animation. Process any changes to the current game state. There's also some extra processing to be done outside the physics in order to control the motion of the nautilus gears, the car, the pulleys, and the rack-and-pinion.

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ProcessState()

void CGame::ProcessState ( )

private

Process any changes to the current game state. If the game is in state eGameState::Loading and both the renderer and sound manager have finished loading (which may or may not be multithreaded), then begin the game.

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Release()

void CGame::Release

(

)

Release all of the DirectX12 objects by deleting the renderer.

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RenderFrame()

void CGame::RenderFrame ( )

private

Draw the game objects. The renderer is notified of the start and end of the frame so that it can let Direct3D do its pipelining jiggery-pokery. If the game state indicates that media is still loading, then a Loading... string is drawn at the center of the screen. This function assumes that the font specified in GameSettings.xml has already been loaded. If all media has finished loading, then the game objects are drawn by the level class.

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