org.mini2Dx.core.screen

Interface ScreenManager<T extends GameScreen>

All Known Implementing Classes:

BasicScreenManager, ScreenManagerSystem

public interface ScreenManager<T extends GameScreen>

Updates and renders GameScreens and Transitions between them

Author:

Thomas Cashman

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

Method Detail

update

void update(GameContainer gc,
          float delta)

Updates the current GameScreen and any Transition that may be occurring

Parameters:

gc - The GameContainer that is updating this ScreenManager

delta - The time since the last update

interpolate

void interpolate(GameContainer gc,
               float alpha)

Interpolate between the previous and current state

Parameters:

alpha - The interpolation alpha value

render

void render(GameContainer gc,
          Graphics g)

Renders the current GameScreen and any Transition that may be occurring

Parameters:

gc - The GameContainer that is rendering this ScreenManager

g - The Graphics context available for rendering

enterGameScreen

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

Begins a transition to a new 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

void addGameScreen(T screen)

Adds a GameScreen to this manager

Parameters:

screen - The GameScreen to be added

getGameScreen

T getGameScreen(int id)

Returns the GameScreen with the given id

Parameters:

id - The id to search for

Returns:

Null if there is no such GameScreen registered with this manager

isTransitioning

boolean isTransitioning()

Returns if the ScreenManager is moving between Screens

Returns:

False if there are no Transitions active