Restructure dependencies and update to C++20

- Nuked static_assert from almost everywhere in the project
- Nuked binary dependency support. Might add one later though
- Separated dependency headers into a separate include subdirectory
- Grafted a thirdpartylegalnotices.txt generator from RITEG
- Pushed development snapshot version to 2126 (26th week of 2025)

5 files changed, 13 insertions, 16 deletions

diff --git a/game/server/CMakeLists.txt b/game/server/CMakeLists.txt
index c2b6c06..a9c5cc9 100644
--- a/game/server/CMakeLists.txt
+++ b/game/server/CMakeLists.txt
@@ -24,7 +24,7 @@ add_executable(vserver
     "${CMAKE_CURRENT_LIST_DIR}/whitelist.hh"
     "${CMAKE_CURRENT_LIST_DIR}/worldgen.cc"
     "${CMAKE_CURRENT_LIST_DIR}/worldgen.hh")
-target_compile_features(vserver PUBLIC cxx_std_17)
+target_compile_features(vserver PUBLIC cxx_std_20)
 target_include_directories(vserver PUBLIC "${DEPS_INCLUDE_DIR}")
 target_include_directories(vserver PRIVATE "${PROJECT_SOURCE_DIR}")
 target_include_directories(vserver PRIVATE "${PROJECT_SOURCE_DIR}/game")
diff --git a/game/server/main.cc b/game/server/main.cc
index 42e76f4..734ae6a 100644
--- a/game/server/main.cc
+++ b/game/server/main.cc
@@ -30,7 +30,7 @@ int main(int argc, char** argv)
 
     shared_game::init(argc, argv);
 
-    spdlog::info("Voxelius Server {}", PROJECT_VERSION_STRING);
+    spdlog::info("Voxelius Server {}", project_version_string);
 
     globals::fixed_frametime = 0.0f;
     globals::fixed_frametime_avg = 0.0f;
diff --git a/game/server/overworld.cc b/game/server/overworld.cc
index 7021717..a280e06 100644
--- a/game/server/overworld.cc
+++ b/game/server/overworld.cc
@@ -12,7 +12,7 @@
 static void compute_tree_feature(unsigned int height, Feature& feature, voxel_id log_voxel, voxel_id leaves_voxel)
 {
     // Ensure the tree height is too small
-    height = cxpr::max<unsigned int>(height, 4U);
+    height = vx::max<unsigned int>(height, 4U);
 
     // Put down a single piece of dirt
     feature.push_back({ voxel_pos(0, -1, 0), game_voxels::dirt, true });
@@ -214,14 +214,14 @@ const Overworld_Metadata& Overworld::get_or_create_metadata(const chunk_pos_xz&
     }
 
     auto nvdi_value = 0.5f + 0.5f * fnlGetNoise2D(&m_fnl_nvdi, cpos.x, cpos.y);
-    auto tree_density = (nvdi_value >= 0.33f) ? cxpr::floor<unsigned int>(nvdi_value * 4.0f) : 0U;
+    auto tree_density = (nvdi_value >= 0.33f) ? vx::floor<unsigned int>(nvdi_value * 4.0f) : 0U;
 
     for(unsigned int i = 0U; i < tree_density; ++i) {
         auto lpos = local_pos((twister() % CHUNK_SIZE), (twister() % OW_NUM_TREES), (twister() % CHUNK_SIZE));
         auto is_unique = true;
 
         for(const auto& check_lpos : metadata.trees) {
-            if(cxvectors::distance2(check_lpos, lpos) <= 9) {
+            if(vx::distance2(check_lpos, lpos) <= 9) {
                 is_unique = false;
                 break;
             }
@@ -350,7 +350,7 @@ void Overworld::generate_features(const chunk_pos& cpos, VoxelStorage& voxels)
         chunk_pos_xz(cpos.x + 1, cpos.z + 1),
     };
 
-    for(unsigned int i = 0U; i < cxpr::array_size(tree_chunks); ++i) {
+    for(unsigned int i = 0U; i < vx::array_size(tree_chunks); ++i) {
         const auto& cpos_xz = tree_chunks[i];
         const auto& metadata = get_or_create_metadata(cpos_xz);
 
diff --git a/game/server/sessions.cc b/game/server/sessions.cc
index a8745cb..43abbb7 100644
--- a/game/server/sessions.cc
+++ b/game/server/sessions.cc
@@ -115,11 +115,8 @@ static void on_login_request_packet(const protocol::LoginRequest& packet)
         dim_info.gravity = globals::spawn_dimension->get_gravity();
         protocol::send(packet.peer, protocol::encode(dim_info));
 
-        spdlog::info("sessions: {} [{}] logged in with client_index={} in {}",
-            session->client_username,
-            session->client_identity,
-            session->client_index,
-            globals::spawn_dimension->get_name());
+        spdlog::info("sessions: {} [{}] logged in with client_index={} in {}", session->client_username, session->client_identity,
+            session->client_index, globals::spawn_dimension->get_name());
 
         // FIXME: only send entities that are present within the current
         // player's view bounding box; this also would mean we're not sending
diff --git a/game/server/universe.cc b/game/server/universe.cc
index e7b8b0f..96884cf 100644
--- a/game/server/universe.cc
+++ b/game/server/universe.cc
@@ -33,7 +33,7 @@ static std::string make_chunk_filename(const DimensionMetadata* metadata, const
     const auto unsigned_x = static_cast<std::uint32_t>(cpos.x);
     const auto unsigned_y = static_cast<std::uint32_t>(cpos.y);
     const auto unsigned_z = static_cast<std::uint32_t>(cpos.z);
-    return fmt::format("{}/{:08X}-{:08X}-{:08X}.zvox", metadata->zvox_dir, unsigned_x, unsigned_y, unsigned_z);
+    return std::format("{}/{:08X}-{:08X}-{:08X}.zvox", metadata->zvox_dir, unsigned_x, unsigned_y, unsigned_z);
 }
 
 static void add_new_dimension(Dimension* dimension)
@@ -43,7 +43,7 @@ static void add_new_dimension(Dimension* dimension)
         std::terminate();
     }
 
-    auto dimension_dir = fmt::format("{}/{}", universe_name.get(), dimension->get_name());
+    auto dimension_dir = std::format("{}/{}", universe_name.get(), dimension->get_name());
 
     if(!PHYSFS_mkdir(dimension_dir.c_str())) {
         spdlog::critical("universe: {}: {}", dimension_dir, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
@@ -51,8 +51,8 @@ static void add_new_dimension(Dimension* dimension)
     }
 
     auto metadata = new DimensionMetadata;
-    metadata->config_path = fmt::format("{}/dimension.conf", dimension_dir);
-    metadata->zvox_dir = fmt::format("{}/chunk", dimension_dir);
+    metadata->config_path = std::format("{}/dimension.conf", dimension_dir);
+    metadata->zvox_dir = std::format("{}/chunk", dimension_dir);
 
     if(!PHYSFS_mkdir(metadata->zvox_dir.c_str())) {
         spdlog::critical("universe: {}: {}", metadata->zvox_dir, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
@@ -107,7 +107,7 @@ void universe::init_late(void)
         std::terminate();
     }
 
-    universe_config_path = fmt::format("{}/universe.conf", universe_dir);
+    universe_config_path = std::format("{}/universe.conf", universe_dir);
     universe_config.load_file(universe_config_path.c_str());
 
     add_new_dimension(new Overworld("world"));