lua api refactor

src/logic/scripting/lua/libpack.cpp

@@ -0,0 +1,31 @@
+#include "api_lua.h"
+#include "lua_commons.h"
+#include "../scripting.h"
+#include "../../../engine.h"
+#include "../../../files/engine_paths.h"
+
+#include <string>
+#include <filesystem>
+
+static int l_pack_get_folder(lua_State* L) {
+    std::string packName = lua_tostring(L, 1);
+    if (packName == "core") {
+        auto folder = scripting::engine->getPaths()
+                                       ->getResources().u8string()+"/";
+        lua_pushstring(L, folder.c_str());
+        return 1;
+    }
+    for (auto& pack : scripting::engine->getContentPacks()) {
+        if (pack.id == packName) {
+            lua_pushstring(L, (pack.folder.u8string()+"/").c_str());
+            return 1;
+        }
+    }
+    lua_pushstring(L, "");
+    return 1;
+}
+
+const luaL_Reg packlib [] = {
+    {"get_folder", lua_wrap_errors<l_pack_get_folder>},
+    {NULL, NULL}
+};