Add difficulty translator

connector/src/main/java/org/geysermc/connector/network/translators/TranslatorsInit.java

@@ -51,6 +51,7 @@ import org.geysermc.connector.network.translators.inventory.GenericInventoryTran
 import org.geysermc.connector.network.translators.inventory.InventoryTranslator;
 import org.geysermc.connector.network.translators.item.ItemTranslator;
 import org.geysermc.connector.network.translators.java.JavaChatTranslator;
+import org.geysermc.connector.network.translators.java.JavaDifficultyTranslator;
 import org.geysermc.connector.network.translators.java.JavaJoinGameTranslator;
 import org.geysermc.connector.network.translators.java.JavaRespawnTranslator;
 import org.geysermc.connector.network.translators.java.JavaTitleTranslator;
@@ -107,6 +108,7 @@ public class TranslatorsInit {
         Registry.registerJava(ServerUpdateTimePacket.class, new JavaUpdateTimeTranslator());
         Registry.registerJava(ServerRespawnPacket.class, new JavaRespawnTranslator());
         Registry.registerJava(ServerSpawnPositionPacket.class, new JavaSpawnPositionTranslator());
+        Registry.registerJava(ServerDifficultyPacket.class, new JavaDifficultyTranslator());
 
         Registry.registerJava(ServerEntityAnimationPacket.class, new JavaEntityAnimationTranslator());
         Registry.registerJava(ServerEntityPositionPacket.class, new JavaEntityPositionTranslator());

connector/src/main/java/org/geysermc/connector/network/translators/java/JavaDifficultyTranslator.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2019 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.connector.network.translators.java;
+
+import com.github.steveice10.mc.protocol.packet.ingame.server.ServerDifficultyPacket;
+import com.nukkitx.protocol.bedrock.packet.SetDifficultyPacket;
+import org.geysermc.connector.network.session.GeyserSession;
+import org.geysermc.connector.network.translators.PacketTranslator;
+
+public class JavaDifficultyTranslator extends PacketTranslator<ServerDifficultyPacket> {
+
+    @Override
+    public void translate(ServerDifficultyPacket packet, GeyserSession session) {
+        SetDifficultyPacket setDifficultyPacket = new SetDifficultyPacket();
+        setDifficultyPacket.setDifficulty(packet.getDifficulty().ordinal());
+        session.getUpstream().sendPacket(setDifficultyPacket);
+    }
+}