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

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package mightypork.rogue.world.gui;
import java.util.Collection;
import java.util.ConcurrentModificationException;
import mightypork.gamecore.gui.components.BaseComponent;
import mightypork.gamecore.resources.Res;
import mightypork.gamecore.resources.fonts.FontRenderer;
import mightypork.rogue.world.WorldConsole;
import mightypork.rogue.world.WorldProvider;
import mightypork.utils.logging.Log;
import mightypork.utils.math.AlignX;
import mightypork.utils.math.Calc;
import mightypork.utils.math.animation.Easing;
import mightypork.utils.math.color.Color;
import mightypork.utils.math.color.pal.RGB;
import mightypork.utils.math.constraints.num.Num;
import mightypork.utils.math.constraints.num.var.NumVar;
import mightypork.utils.math.constraints.rect.Rect;
public class WorldConsoleRenderer extends BaseComponent {
private final Num rowHeight;
private final FontRenderer fr;
private final Rect itemViewRect;
public WorldConsoleRenderer(Num rowHeight) {
this.rowHeight = rowHeight;
this.fr = new FontRenderer(Res.getFont("tiny"));
final Num itmsize = height().perc(25).min(256).max(16);
this.itemViewRect = bottomRight().sub(itmsize.perc(25), itmsize.perc(25)).startRect().grow(itmsize, Num.ZERO, itmsize, Num.ZERO);
}
@Override
protected void renderComponent()
{
final double rh = rowHeight.value();
final Rect lowRow = bottomEdge().growUp(rowHeight);
final WorldConsole console = WorldProvider.get().getWorld().getConsole();
final Collection<WorldConsole.Entry> entries = console.getEntries();
int cnt = 0;
final NumVar alph = Num.makeVar();
Color.pushAlpha(alph);
try {
for (final WorldConsole.Entry entry : entries) {
alph.setTo(entry.getAlpha());
final Rect rrr = lowRow.moveY(-rh * cnt);
fr.draw(entry.getMessage(), rrr.move(rh / 8D, rh / 8D), AlignX.LEFT, RGB.BLACK_60);
fr.draw(entry.getMessage(), rrr, AlignX.LEFT, RGB.WHITE);
cnt++;
}
} catch (final ConcurrentModificationException e) {
Log.e(e); // this should not happen
}
if (console.lastPickupItem != null) {
double alpha = 1;
if (console.timeSinceLastPickup > 2) {
alpha = 1 - Easing.CIRC_OUT.get(Calc.clamp((console.timeSinceLastPickup - 2) / 1, 0, 1));
}
alph.setTo(alpha);
console.lastPickupItem.render(itemViewRect);
}
Color.popAlpha();
}
}