Fixes

src/main/java/com/volmit/iris/gui/PregenGui.java

@@ -0,0 +1,114 @@
+package com.volmit.iris.gui;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.awt.image.ImageObserver;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.util.ChunkPosition;
+import com.volmit.iris.util.J;
+import com.volmit.iris.util.KMap;
+import com.volmit.iris.util.M;
+import com.volmit.iris.util.PregenJob;
+
+public class PregenGui extends JPanel
+{
+	private PregenJob job;
+	private static final long serialVersionUID = 2094606939770332040L;
+	private KMap<ChunkPosition, Color> queue = new KMap<>();
+	private int res = 8192;
+	private BufferedImage image = new BufferedImage(res, res, BufferedImage.TYPE_INT_RGB);
+
+	public PregenGui()
+	{
+
+	}
+
+	@Override
+	public void paint(Graphics gx)
+	{
+		double minC = Math.floorDiv(job.min(), 16) - 4;
+		double maxC = Math.floorDiv(job.max(), 16) + 4;
+
+		Graphics2D g = (Graphics2D) gx;
+		Graphics2D bg = (Graphics2D) image.getGraphics();
+
+		for(ChunkPosition i : queue.k())
+		{
+			draw(i, queue.get(i), minC, maxC, bg);
+		}
+
+		queue.clear();
+
+		g.drawImage(image, 0, 0, getParent().getWidth(), getParent().getHeight(), new ImageObserver()
+		{
+			@Override
+			public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height)
+			{
+				return true;
+			}
+		});
+
+		J.a(() ->
+		{
+			J.sleep((long) 500);
+			repaint();
+		});
+	}
+
+	private void draw(ChunkPosition p, Color c, double minC, double maxC, Graphics2D bg)
+	{
+		double pw = M.lerpInverse(minC, maxC, p.getX());
+		double ph = M.lerpInverse(minC, maxC, p.getZ());
+		double pwa = M.lerpInverse(minC, maxC, p.getX() + 1);
+		double pha = M.lerpInverse(minC, maxC, p.getZ() + 1);
+		int x = (int) M.lerp(0, res, pw);
+		int z = (int) M.lerp(0, res, ph);
+		int xa = (int) M.lerp(0, res, pwa);
+		int za = (int) M.lerp(0, res, pha);
+		bg.setColor(c);
+		bg.fillRect(x, z, xa - x, za - z);
+	}
+
+	private static void createAndShowGUI(PregenJob j)
+	{
+		JFrame frame = new JFrame("Pregen View");
+		PregenGui nv = new PregenGui();
+		nv.job = j;
+		j.subscribe((c, b) -> nv.queue.put(c, b));
+		frame.add(nv);
+		frame.setSize(1440, 820);
+		frame.setVisible(true);
+		File file = Iris.getCached("Iris Icon", "https://raw.githubusercontent.com/VolmitSoftware/Iris/master/icon.png");
+
+		if(file != null)
+		{
+			try
+			{
+				frame.setIconImage(ImageIO.read(file));
+			}
+
+			catch(IOException e)
+			{
+
+			}
+		}
+	}
+
+	public static void launch(PregenJob g)
+	{
+		J.a(() ->
+		{
+			createAndShowGUI(g);
+		});
+	}
+}