org.mini2Dx.core.screen

Class BasicScreenManager<T extends GameScreen>

java.lang.Object

org.mini2Dx.core.screen.BasicScreenManager<T>

All Implemented Interfaces:

ScreenManager<T>

public class BasicScreenManager<T extends GameScreen>
extends Object
implements ScreenManager<T>

A basic screen manager implementation based on Slick implementation by Kevin Glass

Author:

Thomas Cashman

Field Summary

Fields

Modifier and Type	Field and Description
protected T	currentScreen
protected T	nextScreen
protected Transition	transitionIn
protected Transition	transitionOut

Constructor Summary

Constructors

Constructor and Description
BasicScreenManager() Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	addGameScreen(T screen) Adds a GameScreen to this manager
void	enterGameScreen(int id, Transition transitionOut, Transition transitionIn) Begins a transition to a new GameScreen
T	getGameScreen(int id) Returns the GameScreen with the given id
void	interpolate(GameContainer gc, float alpha) Interpolate between the previous and current state
boolean	isTransitioning() Returns if the ScreenManager is moving between Screens
void	render(GameContainer gc, Graphics g) Renders the current GameScreen and any Transition that may be occurring
void	update(GameContainer gc, float delta) Updates the current GameScreen and any Transition that may be occurring

Methods inherited from class java.lang.Object

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

Field Detail

currentScreen

protected T extends GameScreen currentScreen

nextScreen

protected T extends GameScreen nextScreen

transitionIn

protected Transition transitionIn

transitionOut

protected Transition transitionOut

Constructor Detail

BasicScreenManager

public BasicScreenManager()

Constructor

Method Detail

update

public void update(GameContainer gc,
          float delta)

Description copied from interface: ScreenManager

Updates the current GameScreen and any Transition that may be occurring

Specified by:

update in interface ScreenManager<T extends GameScreen>

Parameters:

gc - The GameContainer that is updating this ScreenManager

delta - The time since the last update

interpolate

public void interpolate(GameContainer gc,
               float alpha)

Description copied from interface: ScreenManager

Interpolate between the previous and current state

Specified by:

interpolate in interface ScreenManager<T extends GameScreen>

alpha - The interpolation alpha value

render

public void render(GameContainer gc,
          Graphics g)

Description copied from interface: ScreenManager

Renders the current GameScreen and any Transition that may be occurring

Specified by:

render in interface ScreenManager<T extends GameScreen>

Parameters:

gc - The GameContainer that is rendering this ScreenManager

g - The Graphics context available for rendering

enterGameScreen

public void enterGameScreen(int id,
                   Transition transitionOut,
                   Transition transitionIn)

Description copied from interface: ScreenManager

Begins a transition to a new GameScreen

Specified by:

enterGameScreen in interface ScreenManager<T extends GameScreen>

Parameters:

id - The id of the GameScreen to transition to

transitionOut - The outgoing Transition, e.g. fade out

transitionIn - The incoming Transition, e.g. fade in

addGameScreen

public void addGameScreen(T screen)

Description copied from interface: ScreenManager

Adds a GameScreen to this manager

Specified by:

addGameScreen in interface ScreenManager<T extends GameScreen>

Parameters:

screen - The GameScreen to be added

getGameScreen

public T getGameScreen(int id)

Description copied from interface: ScreenManager

Returns the GameScreen with the given id

Specified by:

getGameScreen in interface ScreenManager<T extends GameScreen>

Parameters:

id - The id to search for

Returns:

Null if there is no such GameScreen registered with this manager

isTransitioning

public boolean isTransitioning()

Description copied from interface: ScreenManager

Returns if the ScreenManager is moving between Screens

Specified by:

isTransitioning in interface ScreenManager<T extends GameScreen>

Returns:

False if there are no Transitions active