Send the client render distance to the server

Previously we've had discussions on if the render distance math should be tweaked like we do server -> client, but for now this is better than nothing and can be tweaked further in the future.

Author: Camotoy

core/src/main/java/org/geysermc/connector/network/session/GeyserSession.java

@@ -64,7 +64,7 @@ public int getRemotePort() {
     }
 
     public int getRenderDistance() {
-        return this.handle.getRenderDistance();
+        return this.handle.getServerRenderDistance();
     }
 
     public boolean isSentSpawnPacket() {

core/src/main/java/org/geysermc/geyser/session/GeyserSession.java

@@ -38,10 +38,14 @@
 import com.github.steveice10.mc.protocol.data.UnexpectedEncryptionException;
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.Pose;
 import com.github.steveice10.mc.protocol.data.game.entity.player.GameMode;
+import com.github.steveice10.mc.protocol.data.game.entity.player.HandPreference;
 import com.github.steveice10.mc.protocol.data.game.recipe.Recipe;
+import com.github.steveice10.mc.protocol.data.game.setting.ChatVisibility;
+import com.github.steveice10.mc.protocol.data.game.setting.SkinPart;
 import com.github.steveice10.mc.protocol.data.game.statistic.CustomStatistic;
 import com.github.steveice10.mc.protocol.data.game.statistic.Statistic;
 import com.github.steveice10.mc.protocol.packet.handshake.serverbound.ClientIntentionPacket;
+import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundClientInformationPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.player.ServerboundMovePlayerPosPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.player.ServerboundPlayerAbilitiesPacket;
 import com.github.steveice10.mc.protocol.packet.login.serverbound.ServerboundCustomQueryPacket;
@@ -245,7 +249,9 @@ public class GeyserSession implements GeyserConnection, CommandSender {
 
     @Setter
     private Vector2i lastChunkPosition = null;
-    private int renderDistance;
+    @Setter
+    private int clientRenderDistance = -1;
+    private int serverRenderDistance;
 
     // Exposed for GeyserConnect usage
     protected boolean sentSpawnPacket;
@@ -1160,9 +1166,9 @@ public String getLocale() {
         return clientData.getLanguageCode();
      }
 
-    public void setRenderDistance(int renderDistance) {
+    public void setServerRenderDistance(int renderDistance) {
         renderDistance = GenericMath.ceil(++renderDistance * MathUtils.SQRT_OF_TWO); //square to circle
-        this.renderDistance = renderDistance;
+        this.serverRenderDistance = renderDistance;
 
         ChunkRadiusUpdatedPacket chunkRadiusUpdatedPacket = new ChunkRadiusUpdatedPacket();
         chunkRadiusUpdatedPacket.setRadius(renderDistance);
@@ -1420,6 +1426,27 @@ public void sendAdventureSettings() {
         sendUpstreamPacket(adventureSettingsPacket);
     }
 
+    private int getRenderDistance() {
+        if (clientRenderDistance != -1) {
+            // The client has sent a render distance
+            return clientRenderDistance;
+        }
+        return serverRenderDistance;
+    }
+
+    // We need to send our skin parts to the server otherwise java sees us with no hat, jacket etc
+    private static final List<SkinPart> SKIN_PARTS = Arrays.asList(SkinPart.values());
+
+    /**
+     * Send a packet to the server to indicate client render distance, locale, skin parts, and hand preference.
+     */
+    public void sendJavaClientSettings() {
+        ServerboundClientInformationPacket clientSettingsPacket = new ServerboundClientInformationPacket(getLocale(),
+                getRenderDistance(), ChatVisibility.FULL, true, SKIN_PARTS,
+                HandPreference.RIGHT_HAND, false, true);
+        sendDownstreamPacket(clientSettingsPacket);
+    }
+
     /**
      * Used for updating statistic values since we only get changes from the server
      *

core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockRequestChunkRadiusTranslator.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.geyser.translator.protocol.bedrock;
+
+import com.nukkitx.protocol.bedrock.packet.RequestChunkRadiusPacket;
+import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.translator.protocol.PacketTranslator;
+import org.geysermc.geyser.translator.protocol.Translator;
+
+/**
+ * Sent when the client updates its desired render distance.
+ */
+@Translator(packet = RequestChunkRadiusPacket.class)
+public class BedrockRequestChunkRadiusTranslator extends PacketTranslator<RequestChunkRadiusPacket> {
+
+    @Override
+    public void translate(GeyserSession session, RequestChunkRadiusPacket packet) {
+        session.setClientRenderDistance(packet.getRadius());
+
+        if (session.isLoggedIn()) {
+            session.sendJavaClientSettings();
+        }
+    }
+}

core/src/main/java/org/geysermc/geyser/translator/protocol/java/JavaLoginTranslator.java

@@ -25,31 +25,25 @@
 
 package org.geysermc.geyser.translator.protocol.java;
 
-import com.github.steveice10.mc.protocol.data.game.entity.player.HandPreference;
-import com.github.steveice10.mc.protocol.data.game.setting.ChatVisibility;
-import com.github.steveice10.mc.protocol.data.game.setting.SkinPart;
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
-import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundClientInformationPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundCustomPayloadPacket;
 import com.nukkitx.protocol.bedrock.data.GameRuleData;
 import com.nukkitx.protocol.bedrock.data.PlayerPermission;
-import com.nukkitx.protocol.bedrock.packet.*;
-import org.geysermc.geyser.session.auth.AuthType;
+import com.nukkitx.protocol.bedrock.packet.AdventureSettingsPacket;
+import com.nukkitx.protocol.bedrock.packet.GameRulesChangedPacket;
+import com.nukkitx.protocol.bedrock.packet.SetPlayerGameTypePacket;
 import org.geysermc.geyser.entity.type.player.PlayerEntity;
 import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.session.auth.AuthType;
+import org.geysermc.geyser.translator.level.BiomeTranslator;
 import org.geysermc.geyser.translator.protocol.PacketTranslator;
 import org.geysermc.geyser.translator.protocol.Translator;
-import org.geysermc.geyser.translator.level.BiomeTranslator;
 import org.geysermc.geyser.util.ChunkUtils;
 import org.geysermc.geyser.util.DimensionUtils;
 import org.geysermc.geyser.util.PluginMessageUtils;
 
-import java.util.Arrays;
-import java.util.List;
-
 @Translator(packet = ClientboundLoginPacket.class)
 public class JavaLoginTranslator extends PacketTranslator<ClientboundLoginPacket> {
-    private static final List<SkinPart> SKIN_PART_VALUES = Arrays.asList(SkinPart.values());
 
     @Override
     public void translate(GeyserSession session, ClientboundLoginPacket packet) {
@@ -99,13 +93,10 @@ public void translate(GeyserSession session, ClientboundLoginPacket packet) {
 
         session.setReducedDebugInfo(packet.isReducedDebugInfo());
 
-        session.setRenderDistance(packet.getViewDistance());
+        session.setServerRenderDistance(packet.getViewDistance());
 
-        // We need to send our skin parts to the server otherwise java sees us with no hat, jacket etc
-        String locale = session.getLocale();
         // TODO customize
-        ServerboundClientInformationPacket infoPacket = new ServerboundClientInformationPacket(locale, (byte) session.getRenderDistance(), ChatVisibility.FULL, true, SKIN_PART_VALUES, HandPreference.RIGHT_HAND, false, true);
-        session.sendDownstreamPacket(infoPacket);
+        session.sendJavaClientSettings();
 
         session.sendDownstreamPacket(new ServerboundCustomPayloadPacket("minecraft:brand", PluginMessageUtils.getGeyserBrandData()));
 

core/src/main/java/org/geysermc/geyser/translator/protocol/java/level/JavaSetChunkCacheRadiusTranslator.java

@@ -35,6 +35,6 @@ public class JavaSetChunkCacheRadiusTranslator extends PacketTranslator<Clientbo
 
     @Override
     public void translate(GeyserSession session, ClientboundSetChunkCacheRadiusPacket packet) {
-        session.setRenderDistance(packet.getViewDistance());
+        session.setServerRenderDistance(packet.getViewDistance());
     }
 }

core/src/main/java/org/geysermc/geyser/util/ChunkUtils.java

@@ -121,7 +121,7 @@ public static void updateChunkPosition(GeyserSession session, Vector3i position)
         if (chunkPos == null || !chunkPos.equals(newChunkPos)) {
             NetworkChunkPublisherUpdatePacket chunkPublisherUpdatePacket = new NetworkChunkPublisherUpdatePacket();
             chunkPublisherUpdatePacket.setPosition(position);
-            chunkPublisherUpdatePacket.setRadius(session.getRenderDistance() << 4);
+            chunkPublisherUpdatePacket.setRadius(session.getServerRenderDistance() << 4);
             session.sendUpstreamPacket(chunkPublisherUpdatePacket);
 
             session.setLastChunkPosition(newChunkPos);