Rogue: Savage Rats, a retro-themed dungeon crawler
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rogue-savage-rats/src/mightypork/gamecore/gui/screens/ScreenLayer.java

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package mightypork.gamecore.gui.screens;
import mightypork.gamecore.control.AppSubModule;
import mightypork.gamecore.control.interf.NoImpl;
import mightypork.gamecore.gui.components.Renderable;
import mightypork.gamecore.gui.constraints.RectConstraint;
import mightypork.gamecore.input.KeyBinder;
import mightypork.gamecore.input.KeyBindingPool;
import mightypork.gamecore.input.KeyStroke;
import mightypork.utils.math.coord.Coord;
import mightypork.utils.math.coord.Rect;
/**
* Screen display layer
*
* @author MightyPork
*/
public abstract class ScreenLayer extends AppSubModule implements Comparable<ScreenLayer>, Renderable, RectConstraint, KeyBinder {
private final Screen screen;
private final KeyBindingPool keybindings = new KeyBindingPool();
/**
* @param screen parent screen
*/
public ScreenLayer(Screen screen) {
super(screen); // screen as AppAccess
this.screen = screen;
addChildClient(keybindings);
}
@Override
public final void bindKeyStroke(KeyStroke stroke, Runnable task)
{
keybindings.bindKeyStroke(stroke, task);
}
@Override
public final void unbindKeyStroke(KeyStroke stroke)
{
keybindings.unbindKeyStroke(stroke);
}
/**
* @return parent screen instance
*/
protected final Screen getScreen()
{
return screen;
}
@Override
public Rect getRect()
{
return screen.getRect();
}
@Override
public final int compareTo(ScreenLayer o)
{
return getPriority() - o.getPriority();
}
/**
* Called when the screen becomes active
*/
@NoImpl
protected void onScreenEnter()
{
//
}
/**
* Called when the screen is no longer active
*/
@NoImpl
protected void onScreenLeave()
{
//
}
/**
* Update GUI for new screen size
*
* @param size screen size
*/
@NoImpl
protected void onSizeChanged(Coord size)
{
//
}
/**
* @return higher = on top.
*/
public abstract int getPriority();
}