GameApplication Struct Reference

Main game application. More...

Public Member Functions
	this (string title, uint fps)
	The width of the game window.
	~this ()
	Cleanup the game when destroyed.
void	PushScene (SceneType scene_type, string level)
	Add a new scene to the list of scenes.
void	PopScene ()
	Pop the last scene in the listt off.
void	LoadScene ()
	Load the current scene data into the game.
SceneNode	CreateMenuScene ()
	Create a SceneNode for the main menu.
SceneNode	CreateDefaultLevelsMenuScene ()
	Create a SceneNode for the level selector menu.
SceneNode	CreateLevelScene (string level)
	Create a SceneNode for a game level.
void	Input ()
	Read and store keyboard and mouse input.
void	Update ()
	Update the state of all GameObject components (both IComponent and ComponentScript objects).
void	CheckClickables ()
	Check all clickable objects for click events.
void	UpdateGameIsRunning ()
	Check whether the game should continue running.
void	UngroundPlayer ()
	Marks the player as free falling.
void	CheckForLanding ()
	Checks whether the player will land on an object due to gravity, and restricts its motion if so.
void	UpdateCollisions ()
	Checks whether the player hit any enemy objects.
void	Render ()
	Render all GameObject entities.
void	AdvanceFrame ()
	Take one frame's worth of actions.
void	RunLoop ()
	Run the game.

Public Attributes
SDL_Window *	mWindow = null
	The SDL window.
SDL_Renderer *	mRenderer = null
	The SDL renderer.
bool	mGameIsRunning = true
	Whether the game is running.
string	currentLevelName
	The name of the current level.
uint	max_frame_duration
	The maximum time available until the next frame must render.
SDL_Rect *	mCamera = null
	The camera placement and size.
SceneNode[]	scenes
SceneNode	root
	All available scenes in the game.
SceneNode	startButtonNode
	The root of the current scene tree.
SceneNode	playerNode
	A pointer to the start button scene tree node if it exists in the current scene.
SceneNode	collidableNode
	A pointer to the player GameObject node if it exists in the current scene.
SceneNode	finishLineNode
	A pointer to the collection of collidable GameObjects if it exists in the current scene.
SceneNode	attemptNode
	A pointer to the finidh line GameObject node if it exists in the current scene.
AudioManager	audioManager
	A pointer to the attempt label node if it exists in the current scene.
string	currentScene
	The name of the current scene.
int	WINDOW_HEIGHT = 480
int	WINDOW_WIDTH = 640
	The height of the game window.

Detailed Description

Main game application.

Contains the game loop and scene structures.

Constructor & Destructor Documentation

this()

GameApplication::this ( string title, uint fps )

inline

The width of the game window.

Initialize a new game.

Parameters

title	the title of the game window.
fps	the maximum FPS allowed for the game.

Member Function Documentation

AdvanceFrame()

void GameApplication::AdvanceFrame ( )

inline

Take one frame's worth of actions.

Calling this function runs the game loop once.

CheckForLanding()

void GameApplication::CheckForLanding ( )

inline

Checks whether the player will land on an object due to gravity, and restricts its motion if so.

If the player will not hit the ground, take no action. Otherwise, ensure the player will not pass through.

See also

playerNode

ComponentCollision::CheckForFloorCollision

CreateDefaultLevelsMenuScene()

SceneNode GameApplication::CreateDefaultLevelsMenuScene ( )

inline

Create a SceneNode for the level selector menu.

Returns

the newly created scene.

See also

SceneNode

CreateLevelScene()

SceneNode GameApplication::CreateLevelScene ( string level )

inline

Create a SceneNode for a game level.

Parameters

level

the level name to load.

Returns

the newly created scene.

See also

SceneNode

CreateMenuScene()

SceneNode GameApplication::CreateMenuScene ( )

inline

Create a SceneNode for the main menu.

Returns

the newly created scene.

See also

SceneNode

Input()

void GameApplication::Input ( )

inline

Read and store keyboard and mouse input.

This input can be accessed by IComponent and ComponentScript objects.

See also

GameObject

IComponent

ComponentScript

LoadScene()

void GameApplication::LoadScene ( )

inline

Load the current scene data into the game.

This loads the data from root into the other node pointers.

See also

root

PopScene()

void GameApplication::PopScene ( )

inline

Pop the last scene in the listt off.

See also

scenes

PushScene()

void GameApplication::PushScene ( SceneType scene_type, string level )

inline

Add a new scene to the list of scenes.

Parameters

scene_type	the type of scene to add.
level	the name of the scene being added.

See also

scenes

RunLoop()

void GameApplication::RunLoop ( )

inline

Run the game.

This is the entry point into the game. This function runs the game loop on repeat.

UngroundPlayer()

void GameApplication::UngroundPlayer ( )

inline

Marks the player as free falling.

See also

playerNode

Update()

void GameApplication::Update ( )

inline

Update the state of all GameObject components (both IComponent and ComponentScript objects).

1. Check whether the game is running.
2. Modify the player's jump velocity so they will land on the ground and not pass through.
3. Check for collisions with enemy objects.
4. Update everything else.
5. Move the camera.

See also

GameObject

IComponent

ComponentScript

UpdateCollisions()

void GameApplication::UpdateCollisions ( )

inline

Checks whether the player hit any enemy objects.

See also

playerNode

ComponentCollision::HandleCollision

UpdateGameIsRunning()

void GameApplication::UpdateGameIsRunning ( )

inline

Check whether the game should continue running.

Updates mGameIsRunning appropriately.

See also

mGameIsRunning

Member Data Documentation

audioManager

AudioManager GameApplication::audioManager

A pointer to the attempt label node if it exists in the current scene.

The AudioManager for the game.

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

• Engine/source/gameapplication.d