com.jme.app
Class BaseHeadlessApp

java.lang.Object
  com.jme.app.AbstractGame
      com.jme.app.BaseHeadlessApp

Direct Known Subclasses:

SimpleHeadlessApp

public abstract class BaseHeadlessApp

extends AbstractGame

BaseHeadlessApp provides the simplest possible implementation of a main game loop for headless apps. Logic is updated as quickly as possible, with no interpolation to account for shifting frame rates. Rendering occurs "as needed". To make this more interesting, might need to add a finer control over the timer.

Version:

$Id: BaseHeadlessApp.java,v 1.2 2005/04/04 19:10:57 renanse Exp $

Author:

Joshua Slack, Mark Powell, Eric Woroshow

Field Summary

Fields inherited from class com.jme.app.AbstractGame

ALWAYS_SHOW_PROPS_DIALOG, display, finished, FIRSTRUN_OR_NOCONFIGFILE_SHOW_PROPS_DIALOG, NEVER_SHOW_PROPS_DIALOG, properties

Constructor Summary

BaseHeadlessApp()

Method Summary

protected abstract void	cleanup() cleanup cleans up any created objects before exiting the application.
protected abstract void	initGame() initGame creates and initializes all game data required for startup.
protected abstract void	initSystem() initSystem creates all the necessary system components for the client application.
protected void	quit() Quits the program abruptly using System.exit.
protected abstract void	reinit() reinit rebuilds the subsystems.
protected abstract void	render(float interpolation) render displays the game information to the OpenGL context.
void	start() The simplest main game loop possible: render and update as fast as possible.
protected abstract void	update(float interpolation) update updates the game state.

Methods inherited from class com.jme.app.AbstractGame

assertDisplayCreated, finish, getAttributes, getVersion, setDialogBehaviour, setDialogBehaviour, setDialogBehaviour

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseHeadlessApp

public BaseHeadlessApp()

Method Detail

start

public final void start()

The simplest main game loop possible: render and update as fast as possible.

Specified by:

start in class AbstractGame

quit

protected void quit()

Quits the program abruptly using System.exit.

Specified by:

quit in class AbstractGame

See Also:

AbstractGame.quit()

update

protected abstract void update(float interpolation)

Description copied from class: AbstractGame

update updates the game state. Physics, AI, networking, score checking and like should be completed in this method. How often and when this method is called depends on the main loop implementation.

Specified by:

update in class AbstractGame

Parameters:

interpolation - unused in this implementation

See Also:

AbstractGame.update(float interpolation)

render

protected abstract void render(float interpolation)

Description copied from class: AbstractGame

render displays the game information to the OpenGL context. Nothing altering the game state should be run during a render. How often and when this method is called depends on the main loop implementation.

Specified by:

render in class AbstractGame

Parameters:

interpolation - unused in this implementation

See Also:

AbstractGame.render(float interpolation)

initSystem

protected abstract void initSystem()

Description copied from class: AbstractGame

initSystem creates all the necessary system components for the client application. It is is called once after start is called. The display must be initialized within this method.

Specified by:

initSystem in class AbstractGame

See Also:

AbstractGame.initSystem()

initGame

protected abstract void initGame()

Description copied from class: AbstractGame

initGame creates and initializes all game data required for startup. It is suggested that caching of frequently used resources is done within this method. It is called once after initSystem has completed.

Specified by:

initGame in class AbstractGame

See Also:

AbstractGame.initGame()

reinit

protected abstract void reinit()

Description copied from class: AbstractGame

reinit rebuilds the subsystems. It may be called at any time by the client application.

Specified by:

reinit in class AbstractGame

See Also:

AbstractGame.reinit()

cleanup

protected abstract void cleanup()

Description copied from class: AbstractGame

cleanup cleans up any created objects before exiting the application. It is called once after finish is called.

Specified by:

cleanup in class AbstractGame

See Also:

AbstractGame.cleanup()