add world.save_chunk_data(...)

src/logic/scripting/lua/libs/libworld.cpp

@@ -6,6 +6,7 @@
 #include "assets/AssetsLoader.hpp"
 #include "coders/json.hpp"
 #include "engine/Engine.hpp"
+#include "files/WorldFiles.hpp"
 #include "files/engine_paths.hpp"
 #include "files/files.hpp"
 #include "lighting/Lighting.hpp"
@@ -158,9 +159,14 @@ static void integrate_chunk_client(Chunk& chunk) {
 }
 
 static int l_set_chunk_data(lua::State* L) {
+    if (level == nullptr) {
+        throw std::runtime_error("no open world");
+    }
+
     int x = static_cast<int>(lua::tointeger(L, 1));
     int z = static_cast<int>(lua::tointeger(L, 2));
     auto buffer = lua::require_bytearray(L, 3);
+
     auto chunk = level->chunks->getChunk(x, z);
     if (chunk == nullptr) {
         return lua::pushboolean(L, false);
@@ -175,6 +181,21 @@ static int l_set_chunk_data(lua::State* L) {
     return lua::pushboolean(L, true);
 }
 
+static int l_save_chunk_data(lua::State* L) {
+    if (level == nullptr) {
+        throw std::runtime_error("no open world");
+    }
+
+    int x = static_cast<int>(lua::tointeger(L, 1));
+    int z = static_cast<int>(lua::tointeger(L, 2));
+    auto buffer = lua::require_bytearray(L, 3);
+
+    compressed_chunks::save(
+        x, z, std::move(buffer), level->getWorld()->wfile->getRegions()
+    );
+    return 0;
+}
+
 static int l_count_chunks(lua::State* L) {
     if (level == nullptr) {
         return 0;
@@ -197,6 +218,7 @@ const luaL_Reg worldlib[] = {
     {"exists", lua::wrap<l_exists>},
     {"get_chunk_data", lua::wrap<l_get_chunk_data>},
     {"set_chunk_data", lua::wrap<l_set_chunk_data>},
+    {"save_chunk_data", lua::wrap<l_save_chunk_data>},
     {"count_chunks", lua::wrap<l_count_chunks>},
     {NULL, NULL}
 };