lua basic script execution

engine/CMakeLists.txt

@@ -79,7 +79,8 @@ add_library(engine STATIC
         "jleExplicitInclude.cpp"
         "jlePhysics.cpp"
         "jlePhysicsDebugDrawer.cpp"
-        "cRigidbody.cpp")
+        "cRigidbody.cpp"
+        "cLuaScript.cpp")
 
 if (BUILD_EDITOR)
     target_sources(engine PRIVATE
@@ -128,6 +129,8 @@ target_include_directories(engine SYSTEM PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/3rd
 
 target_link_libraries(engine PUBLIC zlib)
 
+add_subdirectory(3rdparty/lua)
+target_link_libraries(engine PUBLIC vanilla_lua)
 
 if (NOT BUILD_EMSCRIPTEN) # Native build, excluding some Emscripten-embedded libraries else()
 

engine/cLuaScript.cpp

@@ -0,0 +1,34 @@
+// Copyright (c) 2023. Johan Lind
+
+#include "cLuaScript.h"
+
+cLuaScript::cLuaScript(jleObject *owner, jleScene *scene) : jleComponent(owner, scene) {}
+
+void
+cLuaScript::start()
+{
+    _lua = std::make_shared<sol::state>();
+
+    _lua->open_libraries(sol::lib::base,
+                         sol::lib::math,
+                         sol::lib::string,
+                         sol::lib::coroutine,
+                         sol::lib::package,
+                         sol::lib::debug,
+                         sol::lib::io,
+                         sol::lib::table,
+                         sol::lib::os);
+
+    _lua->set_function("LOGE", [](std::string a) { LOGE << a; });
+
+    try {
+        _lua->script_file(_scriptPath.getRealPath());
+    } catch (std::exception &e) {
+        LOGE << "Error running lua script:" << e.what();
+    }
+}
+
+void
+cLuaScript::update(float dt)
+{
+}

engine/cLuaScript.h

@@ -0,0 +1,32 @@
+// Copyright (c) 2023. Johan Lind
+
+#pragma once
+
+#include "jleComponent.h"
+#include <sol2/sol.hpp>
+
+class cLuaScript : public jleComponent
+{
+    JLE_REGISTER_COMPONENT_TYPE(cLuaScript)
+public:
+    explicit cLuaScript(jleObject *owner = nullptr, jleScene *scene = nullptr);
+
+    template <class Archive>
+    void
+    serialize(Archive &ar)
+    {
+        ar(CEREAL_NVP(_scriptPath));
+    }
+
+    void start() override;
+
+    void update(float dt) override;
+
+protected:
+    jlePath _scriptPath;
+
+    std::shared_ptr<sol::state> _lua;
+};
+
+CEREAL_REGISTER_TYPE(cLuaScript)
+CEREAL_REGISTER_POLYMORPHIC_RELATION(jleComponent, cLuaScript)