feat: hide seed from client when `client-side-chunk-generation-enable…

…d` is set to `false` in `server.properties`

include/bedrock/forward.h

@@ -96,6 +96,7 @@ class InternalComponentRegistry;
 class InventoryTransaction;
 class Item;
 class ItemComponentPacket;
+class ItemData;
 class ItemInstance;
 class ItemRegistryRef;
 class ItemUseMethod;

include/bedrock/network/protocol/game/start_game_packet.h

@@ -0,0 +1,68 @@
+// Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "bedrock/bedrock.h"
+#include "bedrock/forward.h"
+#include "bedrock/mce.h"
+#include "bedrock/nbt/compound_tag.h"
+#include "bedrock/network/protocol/packet.h"
+#include "bedrock/network/syncher/synced_player_movement_settings.h"
+#include "bedrock/server/packs/content_identity.h"
+#include "bedrock/world/actor/actor_runtime_id.h"
+#include "bedrock/world/actor/actor_unique_id.h"
+#include "bedrock/world/level/game_type.h"
+#include "bedrock/world/level/storage/level_settings.h"
+#include "bedrock/world/math/vec2.h"
+#include "bedrock/world/math/vec3.h"
+
+class NetworkPermissions {
+public:
+    bool unknown;
+};
+
+class StartGamePacket : public Packet {
+public:
+    BEDROCK_API virtual void write(BinaryStream &) const;
+
+private:
+    mutable LevelSettings settings_;                                     // +48
+    ActorUniqueID entity_id_;                                            // +1296
+    ActorRuntimeID runtime_id_;                                          // +1304
+    GameType game_type_;                                                 // +1312
+    Vec3 position_;                                                      // +1316
+    Vec2 rotation_;                                                      // +1328
+    std::string level_id_;                                               // +1336
+    std::string level_name_;                                             // +1368
+    ContentIdentity template_content_identity_;                          // +1400
+    mce::UUID world_template_id_;                                        // +1424
+    bool is_trial_;                                                      // +1440
+    SyncedPlayerMovementSettings movement_settings_;                     // +1444
+    std::uint64_t level_current_time_;                                   // +1456
+    int enchantment_seed_;                                               // +1464
+    std::string multiplayer_correlation_id_;                             // +1472
+    std::vector<ItemData> item_data_;                                    // +1504
+    bool enable_item_stack_net_manager_;                                 // +1528
+    std::string server_version_;                                         // +1536
+    CompoundTag player_property_data_;                                   // +1568
+    std::uint64_t server_block_type_registry_checksum_;                  // +1592
+    bool server_enabled_client_side_generation_;                         // +1600
+    bool block_network_ids_are_hashes_;                                  // +1601
+    NetworkPermissions network_permissions_;                             // +1602
+    std::vector<std::pair<std::string, CompoundTag>> block_properties_;  // +1608
+};

include/bedrock/network/syncher/synced_player_movement_settings.h

@@ -0,0 +1,25 @@
+// Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+#include "bedrock/bedrock.h"
+
+class SyncedPlayerMovementSettings {
+public:
+private:
+    char authority_mode_;
+    int rewind_history_size_;
+    bool server_auth_block_breaking_;
+};
+BEDROCK_STATIC_ASSERT_SIZE(SyncedPlayerMovementSettings, 12, 12);

include/bedrock/server/packs/content_identity.h

@@ -0,0 +1,26 @@
+// Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "bedrock/bedrock.h"
+#include "bedrock/mce.h"
+
+class ContentIdentity {
+public:
+private:
+    mce::UUID uuid_;
+    bool is_valid_;
+};
+BEDROCK_STATIC_ASSERT_SIZE(ContentIdentity, 24, 24);

include/bedrock/world/level/storage/level_settings.h

@@ -14,6 +14,7 @@
 
 #pragma once
 
+#include "bedrock/bedrock.h"
 #include "bedrock/world/level/storage/level_seed.h"
 
 class LevelSettings {
@@ -30,4 +31,10 @@ class LevelSettings {
 
 private:
     LevelSeed64 seed_;
+#ifdef _WIN32
+    size_t pad_[1248 / 8 - 1];
+#else
+    size_t pad_[1072 / 8 - 1];
+#endif
 };
+BEDROCK_STATIC_ASSERT_SIZE(LevelSettings, 1248, 1072);

src/endstone_runtime/bedrock/network/protocol/start_game_packet.cpp

@@ -0,0 +1,31 @@
+// Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "bedrock/network/protocol/game/start_game_packet.h"
+
+#include "endstone/detail/hook.h"
+
+void StartGamePacket::write(BinaryStream &stream) const
+{
+    if (!server_enabled_client_side_generation_) {
+        settings_.setRandomSeed({0});
+    }
+
+#if _WIN32
+    ENDSTONE_HOOK_CALL_ORIGINAL_NAME(&StartGamePacket::write, __FUNCDNAME__, this, stream);
+#else
+    ENDSTONE_HOOK_CALL_ORIGINAL_NAME(&StartGamePacket::write, "_ZNK15StartGamePacket5writeER12BinaryStream", this,
+                                     stream);
+#endif
+}