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

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package mightypork.rogue.screens;
import mightypork.gamecore.control.AppAccess;
import mightypork.gamecore.gui.AlignX;
import mightypork.gamecore.gui.components.painters.TextPainter;
import mightypork.gamecore.gui.screens.Overlay;
import mightypork.gamecore.input.KeyStroke;
import mightypork.gamecore.input.Keys;
import mightypork.gamecore.render.fonts.GLFont;
import mightypork.rogue.Res;
import mightypork.util.control.Action;
import mightypork.util.math.color.Color;
import mightypork.util.math.constraints.num.Num;
import mightypork.util.math.constraints.rect.proxy.RectBound;
import mightypork.util.math.constraints.vect.Vect;
import mightypork.util.string.StringProvider;
public class FpsOverlay extends Overlay {
TextPainter tp;
public FpsOverlay(AppAccess screen)
{
super(screen);
/*
* Toggle key: F3
*/
bindKey(new KeyStroke(Keys.F3), new Action() {
@Override
public void execute()
{
setVisible(!isVisible());
}
});
final GLFont font = Res.getFont("default");
final Num h = root.height();
final RectBound constraint = root.shrink(h.perc(3)).topRight().startRect().growDown(h.perc(8).max(32));
tp = new TextPainter(font, AlignX.RIGHT, Color.WHITE, new StringProvider() {
@Override
public String getString()
{
return getDisplay().getFps() + " fps";
}
});
tp.setRect(constraint);
tp.setShadow(Color.BLACK, Vect.make(tp.height().div(16)));
root.add(tp);
}
@Override
public int getZIndex()
{
return Integer.MAX_VALUE;
}
}