net.stemkoski.bagel

Class Game

java.lang.Object

javafx.application.Application

net.stemkoski.bagel.Game

public class Game
extends javafx.application.Application

Main class to be extended for game projects. Creates the window, Input and Group objects, and manages the life cycle of the game (initialization and game loop).

Nested Class Summary

Nested classes/interfaces inherited from class javafx.application.Application

javafx.application.Application.Parameters

Field Summary

Fields

Modifier and Type	Field and Description
(package private) javafx.scene.canvas.Canvas	canvas area where game graphics are displayed
(package private) javafx.scene.canvas.GraphicsContext	context object with methods to draw game entities on canvas
double	deltaTime amount of time that has passed since the last iteration of the game loop
Group	group The root collection for all Entity objects in this game.
Input	input Used to store and update the state of the keyboard and mouse.
(package private) long	previousTime timestamp for start of previous game loop; used to calculate deltaTime
static int	windowHeight default height of game canvas.
static int	windowWidth default width of game canvas.

Fields inherited from class javafx.application.Application

STYLESHEET_CASPIAN, STYLESHEET_MODENA

Constructor Summary

Constructors

Constructor and Description
Game()

Method Summary

Modifier and Type	Method and Description
void	create() Initialize objects used in this game.
void	start(javafx.stage.Stage mainStage) Initializes the window, Input and Group objects, and manages the life cycle of the game (initialization and game loop).
void	update(double dt) Update objects used in this game.

Methods inherited from class javafx.application.Application

getHostServices, getParameters, getUserAgentStylesheet, init, launch, launch, notifyPreloader, setUserAgentStylesheet, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

windowWidth

public static int windowWidth

default width of game canvas. may change if desired.

windowHeight

public static int windowHeight

default height of game canvas. may change if desired.

canvas

javafx.scene.canvas.Canvas canvas

area where game graphics are displayed

context

javafx.scene.canvas.GraphicsContext context

object with methods to draw game entities on canvas

input

public Input input

Used to store and update the state of the keyboard and mouse.

group

public Group group

The root collection for all Entity objects in this game.

previousTime

long previousTime

timestamp for start of previous game loop; used to calculate deltaTime

deltaTime

public double deltaTime

amount of time that has passed since the last iteration of the game loop

Constructor Detail

Game

public Game()

Method Detail

create

public void create()

Initialize objects used in this game. This method should be overridden by the specific game extending this class.

update

public void update(double dt)

Update objects used in this game. Called 60 times per second when possible. This method should be overridden by the specific game extending this class.

Parameters:

dt - amount of time that has passed since the last iteration of the game loop

start

public void start(javafx.stage.Stage mainStage)

Initializes the window, Input and Group objects, and manages the life cycle of the game (initialization and game loop).

Specified by:

start in class javafx.application.Application