Support immediate respawn gamerule (#970)

* Support immediate respawn gamerule

This commit now supports immediate respawn if the server enables it - both on the setting being applied on join and the setting being modified in-game. This also refactors the respawning process to more closely match BDS behavior - nothing broke in my testing but more testing is needed.

* Reuse spawned variable instead of creating new variable

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

@@ -35,6 +35,8 @@ import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlaye
 import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlayerStatePacket;
 import com.nukkitx.math.vector.Vector3i;
 import com.nukkitx.protocol.bedrock.data.LevelEventType;
+import com.nukkitx.protocol.bedrock.data.entity.EntityEventType;
+import com.nukkitx.protocol.bedrock.packet.EntityEventPacket;
 import com.nukkitx.protocol.bedrock.packet.LevelEventPacket;
 import com.nukkitx.protocol.bedrock.packet.PlayStatusPacket;
 import com.nukkitx.protocol.bedrock.packet.PlayerActionPacket;
@@ -60,8 +62,12 @@ public class BedrockActionTranslator extends PacketTranslator<PlayerActionPacket
 
         switch (packet.getAction()) {
             case RESPAWN:
-                // Don't put anything here as respawn is already handled
+                // Respawn process is finished and the server and client are both OK with respawning.
-                // in BedrockRespawnTranslator
+                EntityEventPacket eventPacket = new EntityEventPacket();
+                eventPacket.setRuntimeEntityId(entity.getGeyserId());
+                eventPacket.setType(EntityEventType.RESPAWN);
+                eventPacket.setData(0);
+                session.sendUpstreamPacket(eventPacket);
                 break;
             case START_SWIMMING:
                 ClientPlayerStatePacket startSwimPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.START_SPRINTING);

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

@@ -39,11 +39,13 @@ public class BedrockRespawnTranslator extends PacketTranslator<RespawnPacket> {
     @Override
     public void translate(RespawnPacket packet, GeyserSession session) {
         if (packet.getState() == RespawnPacket.State.CLIENT_READY) {
+            if (!session.isSpawned()) { // Otherwise when immediate respawn is on the client never loads
                 RespawnPacket respawnPacket = new RespawnPacket();
                 respawnPacket.setRuntimeEntityId(0);
                 respawnPacket.setPosition(Vector3f.ZERO);
                 respawnPacket.setState(RespawnPacket.State.SERVER_SEARCHING);
                 session.sendUpstreamPacket(respawnPacket);
+            }
 
             ClientRequestPacket javaRespawnPacket = new ClientRequestPacket(ClientRequest.RESPAWN);
             session.sendDownstreamPacket(javaRespawnPacket);

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

@@ -30,11 +30,9 @@ 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.client.ClientSettingsPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.server.ServerJoinGamePacket;
+import com.nukkitx.protocol.bedrock.data.GameRuleData;
 import com.nukkitx.protocol.bedrock.data.PlayerPermission;
-import com.nukkitx.protocol.bedrock.packet.AdventureSettingsPacket;
+import com.nukkitx.protocol.bedrock.packet.*;
-import com.nukkitx.protocol.bedrock.packet.PlayStatusPacket;
-import com.nukkitx.protocol.bedrock.packet.SetEntityDataPacket;
-import com.nukkitx.protocol.bedrock.packet.SetPlayerGameTypePacket;
 import org.geysermc.connector.entity.PlayerEntity;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
@@ -80,6 +78,11 @@ public class JavaJoinGameTranslator extends PacketTranslator<ServerJoinGamePacke
         entityDataPacket.getMetadata().putAll(entity.getMetadata());
         session.sendUpstreamPacket(entityDataPacket);
 
+        // Send if client should show respawn screen
+        GameRulesChangedPacket gamerulePacket = new GameRulesChangedPacket();
+        gamerulePacket.getGameRules().add(new GameRuleData<>("doimmediaterespawn", !packet.isEnableRespawnScreen()));
+        session.sendUpstreamPacket(gamerulePacket);
+
         session.setRenderDistance(packet.getViewDistance());
 
         // We need to send our skin parts to the server otherwise java sees us with no hat, jacket etc

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

@@ -29,8 +29,6 @@ import com.github.steveice10.mc.protocol.data.game.entity.player.PositionElement
 import com.github.steveice10.mc.protocol.packet.ingame.client.world.ClientTeleportConfirmPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.server.entity.player.ServerPlayerPositionRotationPacket;
 import com.nukkitx.math.vector.Vector3f;
-import com.nukkitx.protocol.bedrock.data.entity.EntityEventType;
-import com.nukkitx.protocol.bedrock.packet.EntityEventPacket;
 import com.nukkitx.protocol.bedrock.packet.MovePlayerPacket;
 import com.nukkitx.protocol.bedrock.packet.RespawnPacket;
 import com.nukkitx.protocol.bedrock.packet.SetEntityDataPacket;
@@ -61,17 +59,11 @@ public class JavaPlayerPositionRotationTranslator extends PacketTranslator<Serve
             entity.setRotation(Vector3f.from(packet.getYaw(), packet.getPitch(), packet.getYaw()));
 
             RespawnPacket respawnPacket = new RespawnPacket();
-            respawnPacket.setRuntimeEntityId(entity.getGeyserId());
+            respawnPacket.setRuntimeEntityId(0); // Bedrock server behavior
             respawnPacket.setPosition(entity.getPosition());
             respawnPacket.setState(RespawnPacket.State.SERVER_READY);
             session.sendUpstreamPacket(respawnPacket);
 
-            EntityEventPacket eventPacket = new EntityEventPacket();
-            eventPacket.setRuntimeEntityId(entity.getGeyserId());
-            eventPacket.setType(EntityEventType.RESPAWN);
-            eventPacket.setData(0);
-            session.sendUpstreamPacket(eventPacket);
-
             SetEntityDataPacket entityDataPacket = new SetEntityDataPacket();
             entityDataPacket.setRuntimeEntityId(entity.getGeyserId());
             entityDataPacket.getMetadata().putAll(entity.getMetadata());
@@ -81,7 +73,7 @@ public class JavaPlayerPositionRotationTranslator extends PacketTranslator<Serve
             movePlayerPacket.setRuntimeEntityId(entity.getGeyserId());
             movePlayerPacket.setPosition(entity.getPosition());
             movePlayerPacket.setRotation(Vector3f.from(packet.getPitch(), packet.getYaw(), 0));
-            movePlayerPacket.setMode(MovePlayerPacket.Mode.RESPAWN); //TODO: PROBABLY RIGHT BUT STILL CHECK
+            movePlayerPacket.setMode(MovePlayerPacket.Mode.RESPAWN);
 
             session.sendUpstreamPacket(movePlayerPacket);
             session.setSpawned(true);

connector/src/main/java/org/geysermc/connector/network/translators/java/world/JavaNotifyClientTranslator.java

@@ -28,10 +28,12 @@ package org.geysermc.connector.network.translators.java.world;
 import com.github.steveice10.mc.protocol.data.game.ClientRequest;
 import com.github.steveice10.mc.protocol.data.game.entity.player.GameMode;
 import com.github.steveice10.mc.protocol.data.game.world.notify.EnterCreditsValue;
+import com.github.steveice10.mc.protocol.data.game.world.notify.RespawnScreenValue;
 import com.github.steveice10.mc.protocol.packet.ingame.client.ClientRequestPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.server.world.ServerNotifyClientPacket;
 import com.nukkitx.math.vector.Vector3f;
 import com.nukkitx.protocol.bedrock.data.AdventureSetting;
+import com.nukkitx.protocol.bedrock.data.GameRuleData;
 import com.nukkitx.protocol.bedrock.data.LevelEventType;
 import com.nukkitx.protocol.bedrock.data.PlayerPermission;
 import com.nukkitx.protocol.bedrock.data.command.CommandPermission;
@@ -129,6 +131,13 @@ public class JavaNotifyClientTranslator extends PacketTranslator<ServerNotifyCli
                 eventPacket.setData(0);
                 eventPacket.setRuntimeEntityId(entity.getGeyserId());
                 session.sendUpstreamPacket(eventPacket);
+                break;
+            case ENABLE_RESPAWN_SCREEN:
+                GameRulesChangedPacket gamerulePacket = new GameRulesChangedPacket();
+                gamerulePacket.getGameRules().add(new GameRuleData<>("doimmediaterespawn",
+                        packet.getValue() == RespawnScreenValue.IMMEDIATE_RESPAWN));
+                session.sendUpstreamPacket(gamerulePacket);
+                break;
             default:
                 break;
         }