build.gradle

@@ -31,8 +31,8 @@ mainClassName = ''
 
 compileJava.options.encoding = 'UTF-8'
 
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
+sourceCompatibility = 11
+targetCompatibility = 11
 
 sourceSets {
     main {

src/de/steamwar/lobby/LobbySystem.java

@@ -27,7 +27,7 @@ import de.steamwar.lobby.command.PortalCommand;
 import de.steamwar.lobby.jumpandrun.JumpAndRun;
 import de.steamwar.lobby.jumpandrun.JumpAndRunCommand;
 import de.steamwar.lobby.listener.*;
-import de.steamwar.lobby.map.CustomMapCommand;
+import de.steamwar.lobby.map.CustomMap;
 import de.steamwar.lobby.particle.ParticleListener;
 import de.steamwar.lobby.special.advent.AdventsCalendar;
 import de.steamwar.lobby.team.TeamPlayer;
@@ -53,13 +53,14 @@ public class LobbySystem extends JavaPlugin {
         entityServer = new REntityServer();
         debugEntityServer = new REntityServer();
 
+        CustomMap.init();
+
         Fightserver.init();
         new Portals();
         new PortalCommand();
         new HologramCommand();
         new FlyCommand();
         new ModifyCommand();
-        new CustomMapCommand();
 
         new JumpAndRun();
         new JumpAndRunCommand();

src/de/steamwar/lobby/map/ColorInit.java

@@ -0,0 +1,41 @@
+package de.steamwar.lobby.map;
+
+import org.bukkit.map.MapPalette;
+
+import java.awt.*;
+import java.io.InputStream;
+
+public class ColorInit {
+
+    private static final byte[] colors;
+
+    public static int getColor(int r, int g, int b) {
+        return colors[(r << 16) + (g << 8) + b] & 0xFF;
+    }
+
+    public static byte getColorByte(int r, int g, int b) {
+        return colors[(r << 16) + (g << 8) + b];
+    }
+
+    static {
+        long time = System.currentTimeMillis();
+        InputStream inputStream = ColorInit.class.getResourceAsStream("/colors.nearest");
+        if (inputStream == null) {
+            colors = new byte[256 * 256 * 256];
+            for (int i = 0; i < colors.length; i++) {
+                colors[i] = MapPalette.matchColor(new Color(i));
+            }
+        } else {
+            try {
+                byte[] bytes = inputStream.readAllBytes();
+                if (bytes.length != 256*256*256) {
+                    throw new RuntimeException("Invalid colors.nearest file");
+                }
+                colors = bytes;
+            } catch (Exception e) {
+                throw new RuntimeException("Failed to read colors.nearest file", e);
+            }
+        }
+        System.out.println("[ColorInit] Initialization took " + (System.currentTimeMillis() - time) + "ms");
+    }
+}

src/de/steamwar/lobby/map/CustomMap.java

@@ -1,110 +1,356 @@
 /*
- * This file is a part of the SteamWar software.
+ *   This file is a part of the SteamWar software.
  *
- * Copyright (C) 2022  SteamWar.de-Serverteam
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
  *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
  *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 package de.steamwar.lobby.map;
 
-import net.minecraft.world.level.saveddata.maps.WorldMap;
+import de.steamwar.lobby.LobbySystem;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
-import org.bukkit.craftbukkit.v1_20_R1.map.CraftMapView;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.MapMeta;
+import org.bukkit.map.MapCanvas;
 import org.bukkit.map.MapPalette;
+import org.bukkit.map.MapRenderer;
+import org.bukkit.map.MapView;
+import org.bukkit.util.Vector;
 
+import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
-import java.lang.reflect.Field;
+import java.awt.image.WritableRaster;
+import java.io.File;
+import java.io.IOException;
+import java.util.*;
 
-public class CustomMap {
+public class CustomMap implements Listener {
 
-    public CustomMap(Player player, BufferedImage image) {
-        if (image.getWidth() % 128 != 0) {
-            throw new IllegalArgumentException("Image width must be a multiple of 128");
-        }
-        if (image.getHeight() % 128 != 0) {
-            throw new IllegalArgumentException("Image height must be a multiple of 128");
+    public static void init() {
+    }
+
+    private static final CustomMap LEFT = new CustomMap(new File(System.getProperty("user.home") + "/lobbyBanner/left.png"),
+            new Vector(2346, 48, 1297), new Vector(2345, 48, 1297), new Vector(2344, 48, 1297), new Vector(2343, 48, 1297), new Vector(2342, 48, 1297), new Vector(2341, 48, 1297), new Vector(2340, 48, 1297),
+            new Vector(2346, 47, 1297), new Vector(2345, 47, 1297), new Vector(2344, 47, 1297), new Vector(2343, 47, 1297), new Vector(2342, 47, 1297), new Vector(2341, 47, 1297), new Vector(2340, 47, 1297),
+            new Vector(2346, 46, 1297), new Vector(2345, 46, 1297), new Vector(2344, 46, 1297), new Vector(2343, 46, 1297), new Vector(2342, 46, 1297), new Vector(2341, 46, 1297), new Vector(2340, 46, 1297),
+            new Vector(2346, 45, 1297), new Vector(2345, 45, 1297), new Vector(2344, 45, 1297), new Vector(2343, 45, 1297), new Vector(2342, 45, 1297), new Vector(2341, 45, 1297), new Vector(2340, 45, 1297)
+    );
+
+    private static final CustomMap RIGHT = new CustomMap(new File(System.getProperty("user.home") + "/lobbyBanner/right.png"),
+            new Vector(2330, 48, 1297), new Vector(2329, 48, 1297), new Vector(2328, 48, 1297), new Vector(2327, 48, 1297), new Vector(2326, 48, 1297), new Vector(2325, 48, 1297), new Vector(2324, 48, 1297),
+            new Vector(2330, 47, 1297), new Vector(2329, 47, 1297), new Vector(2328, 47, 1297), new Vector(2327, 47, 1297), new Vector(2326, 47, 1297), new Vector(2325, 47, 1297), new Vector(2324, 47, 1297),
+            new Vector(2330, 46, 1297), new Vector(2329, 46, 1297), new Vector(2328, 46, 1297), new Vector(2327, 46, 1297), new Vector(2326, 46, 1297), new Vector(2325, 46, 1297), new Vector(2324, 46, 1297),
+            new Vector(2330, 45, 1297), new Vector(2329, 45, 1297), new Vector(2328, 45, 1297), new Vector(2327, 45, 1297), new Vector(2326, 45, 1297), new Vector(2325, 45, 1297), new Vector(2324, 45, 1297)
+    );
+
+    private File mapFile;
+    private Map<Vector, Integer> itemFrameIndex = new HashMap<>();
+    private ItemFrame[] itemFrames;
+    private long lastModified = Long.MAX_VALUE;
+
+    public CustomMap(File mapFile, Vector... itemFrames) {
+        this.mapFile = mapFile;
+        this.itemFrames = new ItemFrame[itemFrames.length];
+        for (int i = 0; i < itemFrames.length; i++) {
+            itemFrameIndex.put(itemFrames[i], i);
         }
 
-        BufferedImage bufferedImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
-        for (int y = 0; y < image.getHeight(); y++) {
-            for (int x = 0; x < image.getWidth(); x++) {
-                Color oldPixel = new Color(image.getRGB(x, y));
-                Color newPixel = getNearest(oldPixel);
-                bufferedImage.setRGB(x, y, newPixel.getRGB());
-                int quantErrorRed = oldPixel.getRed() - newPixel.getRed();
-                int quantErrorGreen = oldPixel.getGreen() - newPixel.getGreen();
-                int quantErrorBlue = oldPixel.getBlue() - newPixel.getBlue();
-                if (x < image.getWidth() - 1) {
-                    image.setRGB(x + 1, y, updateViaQuantError(new Color(image.getRGB(x + 1, y)), quantErrorRed, quantErrorGreen, quantErrorBlue, 7 / 16.0).getRGB());
-                }
-                if (x > 0) {
-                    image.setRGB(x - 1, y, updateViaQuantError(new Color(image.getRGB(x - 1, y)), quantErrorRed, quantErrorGreen, quantErrorBlue, 3 / 16.0).getRGB());
-                }
-                if (y < image.getHeight() - 1) {
-                    image.setRGB(x, y + 1, updateViaQuantError(new Color(image.getRGB(x, y + 1)), quantErrorRed, quantErrorGreen, quantErrorBlue, 5 / 16.0).getRGB());
-                    if (x < image.getWidth() - 1) {
-                        image.setRGB(x + 1, y + 1, updateViaQuantError(new Color(image.getRGB(x + 1, y + 1)), quantErrorRed, quantErrorGreen, quantErrorBlue, 1 / 16.0).getRGB());
+        Bukkit.getScheduler().runTaskTimer(LobbySystem.getPlugin(), () -> {
+            long modified = mapFile.lastModified();
+            if (modified > lastModified) {
+                lastModified = modified;
+                System.out.println("Updating Banner: " + mapFile.getName());
+                Bukkit.getScheduler().runTaskAsynchronously(LobbySystem.getPlugin(), () -> {
+                    try {
+                        run();
+                    } catch (IOException e) {
+                        // Ignore
                     }
-                }
+                });
             }
-        }
+        }, 200L, 200L);
+        Bukkit.getPluginManager().registerEvents(this, LobbySystem.getPlugin());
+    }
 
-        for (int x = 0; x < bufferedImage.getWidth(); x += 128) {
-            for (int y = 0; y < bufferedImage.getHeight(); y += 128) {
-                BufferedImage subImage = bufferedImage.getSubimage(x, y, 128, 128);
-                CraftMapView craftMapView = (CraftMapView) Bukkit.createMap(player.getWorld());
-                try {
-                    Field field = CraftMapView.class.getDeclaredField("worldMap");
-                    field.setAccessible(true);
-                    WorldMap worldMap = (WorldMap) field.get(craftMapView);
-                    for (int sx = 0; sx < 128; sx++) {
-                        for (int sy = 0; sy < 128; sy++) {
-                            byte color = MapPalette.matchColor(new Color(subImage.getRGB(sx, sy)));
-                            worldMap.g[sx + sy * 128] = color;
+    @EventHandler
+    public void onChunkLoad(ChunkLoadEvent event) {
+        for (Entity entity : event.getChunk().getEntities()) {
+            if (!(entity instanceof ItemFrame)) continue;
+            ItemFrame itemFrame = (ItemFrame) entity;
+            ItemStack itemStack = itemFrame.getItem();
+            if (itemStack.getType() != Material.FILLED_MAP) continue;
+            Vector vector = itemFrame.getLocation().getBlock().getLocation().toVector();
+            if (itemFrameIndex.containsKey(vector)) {
+                if (itemFrames[itemFrameIndex.get(vector)] != null) continue;
+                itemFrames[itemFrameIndex.get(vector)] = itemFrame;
+                lastModified = 0;
+                MapView mapView = ((MapMeta) itemFrame.getItem().getItemMeta()).getMapView();
+                new ArrayList<>(mapView.getRenderers()).forEach(mapView::removeRenderer);
+                mapView.addRenderer(new MapRenderer() {
+                    @Override
+                    public void render(MapView map, MapCanvas canvas, Player player) {
+                        for (int x = 0; x < 128; x++) {
+                            for (int y = 0; y < 128; y++) {
+                                canvas.setPixel(x, y, (byte) 32);
+                            }
                         }
                     }
-                    craftMapView.setLocked(true);
-                } catch (IllegalAccessException | NoSuchFieldException e) {
-                    throw new SecurityException(e.getMessage(), e);
-                }
-                ItemStack itemStack = new ItemStack(Material.FILLED_MAP, 1);
-                MapMeta mapMeta = (MapMeta) itemStack.getItemMeta();
-                mapMeta.setMapView(craftMapView);
-                itemStack.setItemMeta(mapMeta);
-                player.getInventory().addItem(itemStack);
+                });
             }
         }
     }
 
-    private Color updateViaQuantError(Color color, int quantErrorRed, int quantErrorGreen, int quantErrorBlue, double multiplier) {
-        int newRed = (int) (color.getRed() + quantErrorRed * multiplier);
-        int newGreen = (int) (color.getGreen() + quantErrorGreen * multiplier);
-        int newBlue = (int) (color.getBlue() + quantErrorBlue * multiplier);
-        return new Color(clamp(newRed), clamp(newGreen), clamp(newBlue));
+    private void run() throws IOException {
+        BufferedImage bufferedImage = ImageIO.read(mapFile);
+
+        Set<Point>[] patches = new Set[256];
+        for (int patch = 0; patch < patches.length; patch++) {
+            patches[patch] = new HashSet<>();
+        }
+
+        for (int y = 0; y < bufferedImage.getHeight(); y++) {
+            for (int x = 0; x < bufferedImage.getWidth(); x++) {
+                Color color = new Color(bufferedImage.getRGB(x, y));
+                double red = color.getRed() / 255.0;
+                double green = color.getGreen() / 255.0;
+                double blue = color.getBlue() / 255.0;
+                double luminance = Math.sqrt(0.299 * red * red + 0.587 * green * green + 0.114 * blue * blue);
+                luminance *= 255;
+                patches[(int) luminance].add(new Point(x, y));
+            }
+        }
+
+        for (int patch = 0; patch < patches.length; patch++) {
+            Set<Point> points = patches[patch];
+            if (points.isEmpty()) continue;
+            BufferedImage patchImage = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
+            points.forEach(point -> {
+                patchImage.setRGB(point.getX(), point.getY(), bufferedImage.getRGB(point.getX(), point.getY()));
+            });
+            floodFill(patchImage);
+            dither(patchImage);
+            points.forEach(point -> {
+                bufferedImage.setRGB(point.getX(), point.getY(), patchImage.getRGB(point.getX(), point.getY()));
+            });
+        }
+
+        for (int y = 0; y < bufferedImage.getHeight(); y += 128) {
+            for (int x = 0; x < bufferedImage.getWidth(); x += 128) {
+                ItemFrame itemFrame = itemFrames[y / 128 * 7 + x / 128];
+                if (itemFrame == null) continue;
+                int finalX = x;
+                int finalY = y;
+                Bukkit.getScheduler().runTaskLater(LobbySystem.getPlugin(), () -> {
+                    ItemStack itemStack = itemFrame.getItem();
+                    MapMeta mapMeta = (MapMeta) itemStack.getItemMeta();
+                    MapView mapView = mapMeta.getMapView();
+                    new ArrayList<>(mapView.getRenderers()).forEach(mapView::removeRenderer);
+                    mapView.addRenderer(new MapRenderer() {
+                        @Override
+                        public void render(MapView map, MapCanvas canvas, Player player) {
+                            for (int dy = 0; dy < 128; dy++) {
+                                for (int dx = 0; dx < 128; dx++) {
+                                    int ax = dx + finalX;
+                                    int ay = dy + finalY;
+                                    Color color = new Color(bufferedImage.getRGB(ax, ay));
+                                    canvas.setPixel(dx, dy, ColorInit.getColorByte(color.getRed(), color.getGreen(), color.getBlue()));
+                                }
+                            }
+                        }
+                    });
+
+                    mapMeta.setMapView(mapView);
+                    itemStack.setItemMeta(mapMeta);
+                    itemFrame.setItem(itemStack);
+                }, 1);
+            }
+        }
     }
 
-    private int clamp(int value) {
-        return Math.max(0, Math.min(255, value));
+    private static void floodFill(BufferedImage bufferedImage) {
+        WritableRaster alpha = bufferedImage.getAlphaRaster();
+        int[] data = alpha.getPixels(0, 0, bufferedImage.getWidth(), bufferedImage.getHeight(), new int[bufferedImage.getWidth() * bufferedImage.getHeight()]);
+        for (int i = 0; i < 5; i++) {
+            Set<Point> changes = new HashSet<>();
+            for (int y = 0; y < bufferedImage.getHeight(); y++) {
+                for (int x = 0; x < bufferedImage.getWidth(); x++) {
+                    if (data[y * bufferedImage.getWidth() + x] == 0) continue;
+                    int color = bufferedImage.getRGB(x, y);
+                    if (x > 0 && data[y * bufferedImage.getWidth() + x - 1] == 0) {
+                        bufferedImage.setRGB(x - 1, y, color);
+                        changes.add(new Point(x - 1, y));
+                    }
+                    if (x < bufferedImage.getWidth() - 1 && data[y * bufferedImage.getWidth() + x + 1] == 0) {
+                        bufferedImage.setRGB(x + 1, y, color);
+                        changes.add(new Point(x + 1, y));
+                    }
+                    if (y > 0 && data[(y - 1) * bufferedImage.getWidth() + x] == 0) {
+                        bufferedImage.setRGB(x, y - 1, color);
+                        changes.add(new Point(x, y - 1));
+                    }
+                    if (y < bufferedImage.getHeight() - 1 && data[(y + 1) * bufferedImage.getWidth() + x] == 0) {
+                        bufferedImage.setRGB(x, y + 1, color);
+                        changes.add(new Point(x, y + 1));
+                    }
+                }
+            }
+            if (changes.isEmpty()) return;
+            changes.forEach(point -> {
+                data[point.getY() * bufferedImage.getWidth() + point.getX()] = 255;
+            });
+        }
     }
 
-    private static Color getNearest(Color color) {
-        return MapPalette.getColor(MapPalette.matchColor(color));
+    private static BufferedImage dither(BufferedImage image) {
+        final double multiplier1 = 7 / 48.0;
+        final double multiplier2 = 3 / 48.0;
+        final double multiplier3 = 5 / 48.0;
+        final double multiplier4 = 1 / 48.0;
+        WritableRaster alphaRaster = image.getAlphaRaster();
+        WritableRaster raster = image.getRaster();
+        int numBands = raster.getNumBands();
+        int[] pixels = raster.getPixels(0, 0, image.getWidth(), image.getHeight(), new int[image.getWidth() * image.getHeight() * numBands]);
+
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                if (alphaRaster.getPixel(x, y, new int[1])[0] == 0) continue;
+
+                int red = pixels[(y * width + x) * numBands];
+                int i2 = (y * width + x) * numBands + 1;
+                int green = pixels[i2];
+                int i3 = (y * width + x) * numBands + 2;
+                int blue = pixels[i3];
+                Color nearest = MapPalette.getColor(ColorInit.getColorByte(red, green, blue));
+
+                pixels[(y * width + x) * numBands] = nearest.getRed();
+                pixels[i2] = nearest.getGreen();
+                pixels[i3] = nearest.getBlue();
+
+                int quantErrorRed = red - nearest.getRed();
+                int quantErrorGreen = green - nearest.getGreen();
+                int quantErrorBlue = blue - nearest.getBlue();
+
+                int mr1 = (int) (quantErrorRed * multiplier1);
+                int mg1 = (int) (quantErrorGreen * multiplier1);
+                int mb1 = (int) (quantErrorBlue * multiplier1);
+
+                int mr2 = (int) (quantErrorRed * multiplier2);
+                int mg2 = (int) (quantErrorGreen * multiplier2);
+                int mb2 = (int) (quantErrorBlue * multiplier2);
+
+                int mr3 = (int) (quantErrorRed * multiplier3);
+                int mg3 = (int) (quantErrorGreen * multiplier3);
+                int mb3 = (int) (quantErrorBlue * multiplier3);
+
+                int mr4 = (int) (quantErrorRed * multiplier4);
+                int mg4 = (int) (quantErrorGreen * multiplier4);
+                int mb4 = (int) (quantErrorBlue * multiplier4);
+
+                if (x < width - 1) {
+                    int i = (y * width + x + 1) * numBands;
+                    pixels[i] = clamp(pixels[i] + mr1);
+                    pixels[i + 1] = clamp(pixels[i + 1] + mg1);
+                    pixels[i + 2] = clamp(pixels[i + 2] + mb1);
+                }
+
+                if (x < width - 2) {
+                    int i = (y * width + x + 2) * numBands;
+                    pixels[i] = clamp(pixels[i] + mr3);
+                    pixels[i + 1] = clamp(pixels[i + 1] + mg3);
+                    pixels[i + 2] = clamp(pixels[i + 2] + mb3);
+                }
+
+                if (y < height - 1) {
+                    if (x > 1) {
+                        int i = ((y + 1) * width + x - 2) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr2);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg2);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb2);
+                    }
+                    if (x > 0) {
+                        int i = ((y + 1) * width + x - 1) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr3);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg3);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb3);
+                    }
+                    if (x < width - 1) {
+                        int i = ((y + 1) * width + x + 1) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr3);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg3);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb3);
+                    }
+                    if (x < width - 2) {
+                        int i = ((y + 1) * width + x + 2) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr2);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg2);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb2);
+                    }
+                    int i = (y * width + x) * numBands;
+                    pixels[i] = clamp(pixels[i] + mr1);
+                    pixels[i + 1] = clamp(pixels[i + 1] + mg1);
+                    pixels[i + 2] = clamp(pixels[i + 2] + mb1);
+                }
+
+                if (y < height - 2) {
+                    if (x > 1) {
+                        int i = ((y + 2) * width + x - 2) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr4);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg4);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb4);
+                    }
+                    if (x > 0) {
+                        int i = ((y + 2) * width + x - 1) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr2);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg2);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb2);
+                    }
+                    if (x < width - 1) {
+                        int i = ((y + 2) * width + x + 1) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr2);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg2);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb2);
+                    }
+                    if (x < width - 2) {
+                        int i = ((y + 2) * width + x + 2) * numBands;
+                        pixels[i] = clamp(pixels[i] + mr4);
+                        pixels[i + 1] = clamp(pixels[i + 1] + mg4);
+                        pixels[i + 2] = clamp(pixels[i + 2] + mb4);
+                    }
+                    int i = (y * width + x) * numBands;
+                    pixels[i] = clamp(pixels[i] + mr3);
+                    pixels[i + 1] = clamp(pixels[i + 1] + mg3);
+                    pixels[i + 2] = clamp(pixels[i + 2] + mb3);
+                }
+            }
+        }
+        raster.setPixels(0, 0, width, height, pixels);
+        return image;
+    }
+
+    private static int clamp(int value) {
+        return Math.max(0, Math.min(value, 255));
     }
 }

src/de/steamwar/lobby/map/CustomMapCommand.java

@@ -1,73 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2022  SteamWar.de-Serverteam
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.lobby.map;
-
-import de.steamwar.command.SWCommand;
-import de.steamwar.command.TypeMapper;
-import de.steamwar.command.TypeValidator;
-import de.steamwar.sql.SteamwarUser;
-import de.steamwar.sql.UserPerm;
-import lombok.SneakyThrows;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import javax.imageio.ImageIO;
-import java.io.File;
-import java.util.List;
-
-public class CustomMapCommand extends SWCommand {
-
-    public CustomMapCommand() {
-        super("map");
-    }
-
-    @Register
-    @SneakyThrows
-    public void render(@Validator Player p, File file) {
-        if (!SteamwarUser.get(p.getUniqueId()).hasPerm(UserPerm.ADMINISTRATION)) {
-            return;
-        }
-        if (!file.exists()) {
-            p.sendMessage("§cDiese Datei existiert nicht!");
-            return;
-        }
-        new CustomMap(p, ImageIO.read(file));
-    }
-
-    @ClassValidator(value = Player.class, local = true)
-    public TypeValidator<Player> getGuardChecker() {
-        return (commandSender, player, messageSender) -> SteamwarUser.get(player.getUniqueId()).hasPerm(UserPerm.ADMINISTRATION);
-    }
-
-    @ClassMapper(value = File.class, local = true)
-    public TypeMapper<File> getTypeMapper() {
-        return new TypeMapper<File>() {
-            @Override
-            public List<String> tabCompletes(CommandSender commandSender, String[] strings, String s) {
-                return null;
-            }
-
-            @Override
-            public File map(CommandSender commandSender, String[] previousArguments, String s) {
-                return new File(s);
-            }
-        };
-    }
-}

src/de/steamwar/lobby/map/Point.java

@@ -0,0 +1,20 @@
+package de.steamwar.lobby.map;
+
+public class Point {
+
+    private int x;
+    private int y;
+
+    public Point(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public int getY() {
+        return y;
+    }
+}