More bounding box fixes (#2132)

- Fix decimal formatting error when running Geyser in another region
- Fix sneaking bounding box when flying

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

@@ -380,7 +380,6 @@ public class GeyserSession implements CommandSender {
     /**
      * If the current player is flying
      */
-    @Setter
     private boolean flying = false;
 
     /**
@@ -862,11 +861,10 @@ public class GeyserSession implements CommandSender {
             playerEntity.updateBedrockAttributes(this);
             // the server *should* update our pose once it has returned to normal
         } else {
-            this.pose = sneaking ? Pose.SNEAKING : Pose.STANDING;
-            playerEntity.getMetadata().put(EntityData.BOUNDING_BOX_HEIGHT, sneaking ? 1.5f : playerEntity.getEntityType().getHeight());
-            playerEntity.getMetadata().getFlags().setFlag(EntityFlag.SNEAKING, sneaking);
-
-            collisionManager.updatePlayerBoundingBox();
+            if (!flying) {
+                // The pose and bounding box should not be updated if the player is flying
+                setSneakingPose(sneaking);
+            }
             collisionManager.updateScaffoldingFlags(false);
         }
 
@@ -878,6 +876,14 @@ public class GeyserSession implements CommandSender {
         }
     }
 
+    private void setSneakingPose(boolean sneaking) {
+        this.pose = sneaking ? Pose.SNEAKING : Pose.STANDING;
+        playerEntity.getMetadata().put(EntityData.BOUNDING_BOX_HEIGHT, sneaking ? 1.5f : playerEntity.getEntityType().getHeight());
+        playerEntity.getMetadata().getFlags().setFlag(EntityFlag.SNEAKING, sneaking);
+
+        collisionManager.updatePlayerBoundingBox();
+    }
+
     public void setSwimming(boolean swimming) {
         this.pose = swimming ? Pose.SWIMMING : Pose.STANDING;
         playerEntity.getMetadata().put(EntityData.BOUNDING_BOX_HEIGHT, swimming ? 0.6f : playerEntity.getEntityType().getHeight());
@@ -885,6 +891,16 @@ public class GeyserSession implements CommandSender {
         playerEntity.updateBedrockMetadata(this);
     }
 
+    public void setFlying(boolean flying) {
+        this.flying = flying;
+
+        if (sneaking) {
+            // update bounding box as it is not reduced when flying
+            setSneakingPose(!flying);
+            playerEntity.updateBedrockMetadata(this);
+        }
+    }
+
     /**
      * Adjusts speed if the player is crawling.
      *

connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockAdventureSettingsTranslator.java

@@ -39,6 +39,7 @@ public class BedrockAdventureSettingsTranslator extends PacketTranslator<Adventu
     @Override
     public void translate(AdventureSettingsPacket packet, GeyserSession session) {
         boolean isFlying = packet.getSettings().contains(AdventureSetting.FLYING);
+        session.setFlying(isFlying);
         ClientPlayerAbilitiesPacket abilitiesPacket = new ClientPlayerAbilitiesPacket(isFlying);
         session.sendDownstreamPacket(abilitiesPacket);
 

connector/src/main/java/org/geysermc/connector/network/translators/collision/CollisionManager.java

@@ -42,8 +42,10 @@ import org.geysermc.connector.network.translators.collision.translators.BlockCol
 import org.geysermc.connector.network.translators.world.block.BlockTranslator;
 
 import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 public class CollisionManager {
 
@@ -71,8 +73,9 @@ public class CollisionManager {
     public static final double COLLISION_TOLERANCE = 0.00001;
     /**
      * Trims Y coordinates when jumping to prevent rounding issues being sent to the server.
+     * The locale used is necessary so other regions don't use <code>,</code> as their decimal separator.
      */
-    private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#.#####");
+    private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#.#####", new DecimalFormatSymbols(Locale.ENGLISH));
 
     public CollisionManager(GeyserSession session) {
         this.session = session;

connector/src/main/java/org/geysermc/connector/network/translators/java/entity/player/JavaPlayerAbilitiesTranslator.java

@@ -26,7 +26,6 @@
 package org.geysermc.connector.network.translators.java.entity.player;
 
 import com.github.steveice10.mc.protocol.packet.ingame.server.entity.player.ServerPlayerAbilitiesPacket;
-import org.geysermc.connector.entity.player.PlayerEntity;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
 import org.geysermc.connector.network.translators.Translator;
@@ -36,10 +35,6 @@ public class JavaPlayerAbilitiesTranslator extends PacketTranslator<ServerPlayer
 
     @Override
     public void translate(ServerPlayerAbilitiesPacket packet, GeyserSession session) {
-        PlayerEntity entity = session.getPlayerEntity();
-        if (entity == null)
-            return;
-
         session.setCanFly(packet.isCanFly());
         session.setFlying(packet.isFlying());
         session.sendAdventureSettings();