feat: Added NoNut core

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.21)
 include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
 project(PyG2O)
 
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
 
 # Specify build type
@@ -64,6 +64,8 @@ endif()
 file(GLOB_RECURSE SOURCE
 	"include/*.h"
   
+  "src/NoNut/core/*.h"
+  "src/NoNut/core/*.cpp"
 	"src/*.h"
 	"src/*.cpp"
   "src/events/*.h"

src/NoNut/core/Array.cpp

@@ -0,0 +1,20 @@
+#include "CommonHeader.h"
+#include "Array.h"
+
+namespace nonut
+{
+	Array::Array(const SQObject object) : object(object), cachedSize(size())
+	{
+	}
+
+	Array::~Array() = default;
+
+	size_t Array::size() const
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_pushobject(vm, object);
+		const auto result = sq_getsize(vm, -1);
+		sq_pop(vm, 1);
+		return static_cast<size_t>(result);
+	}
+}

src/NoNut/core/Array.h

@@ -0,0 +1,51 @@
+#ifndef NONUT_CORE_ARRAY_H
+#define NONUT_CORE_ARRAY_H
+#include "CommonHeader.h"
+
+#include "Utils.h"
+#include <sqapi.h>
+
+namespace nonut
+{
+	class Array
+	{
+	public:
+		explicit Array(SQObject object);
+		~Array();
+
+		[[nodiscard]] size_t size() const;
+
+		template <typename T>
+		T get(const String index)
+		{
+			HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+			T result{};
+			sq_pushobject(vm, object);
+			sq_pushstring(vm, index.c_str(), index.length());
+
+			if (SQ_FAILED(sq_get(vm, -2)))
+			{
+				sq_pop(vm, 1);
+				return result;
+			}
+			if constexpr (std::is_same_v<T, String>)
+			{
+				const SQChar* intermediateResult = nullptr;
+				sq_getstring(vm, -1, &intermediateResult);
+				result = intermediateResult;
+			}
+			else
+			{
+				sqGetValue(vm, -1, &result);
+			}
+
+			sq_pop(vm, 2);
+			return result;
+		}
+
+	private:
+		SQObject object;
+		size_t cachedSize;
+	};
+}
+#endif // NONUT_CORE_ARRAY_H

src/NoNut/core/Bind.h

@@ -0,0 +1,31 @@
+#ifndef NONUT_CORE_BIND_H
+#define NONUT_CORE_BIND_H
+
+#include "CommonHeader.h"
+#include <vector>
+
+namespace nonut
+{
+	//TODO: Finish Bind and remove placeholder
+
+	class Bind
+	{
+	public:
+		static void registerFunction(String funcName, const SQFUNCTION func, size_t funcSize)
+		{
+			const auto top = sq_gettop(vm);
+			sq_pushroottable(vm);
+			sq_pushstring(vm, funcName.c_str(), funcName.length());
+			sq_newclosure(vm, func, 0); //create a new function
+			sq_newslot(vm, -3, SQFalse);
+			sq_settop(vm, top);
+		}
+
+		//template<typename F>
+		//static void Function(String functionName, F& function)
+		//{
+		//	
+		//}
+	};
+}
+#endif // NONUT_CORE_BIND_H

src/NoNut/core/Class.cpp

@@ -0,0 +1,63 @@
+#include "CommonHeader.h"
+#include "Class.h"
+
+namespace nonut
+{
+	Class::Class(const String& className, const SQObject classObjectInstance)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		if (classObjectInstance._type == OT_NULL)
+		{
+			const auto top = sq_gettop(vm);
+
+			sq_pushroottable(vm); //push root table
+			sq_pushstring(vm, className.c_str(), className.length()); //push class name
+
+			if (sq_get(vm, -2) == SQ_OK) //retrieve class
+			{
+				sq_getstackobj(vm, -1, &classObject);
+				sq_addref(vm, &classObject);
+				if (sq_createinstance(vm, -1) == SQ_OK) //create class instance
+				{
+					//1. Get object ptr
+					sq_getstackobj(vm, -1, &this->classObjectInstance); //retrieve object
+					sq_addref(vm, &this->classObjectInstance);
+					//Add ref thanks to which object will not be immediately deleted
+					sq_pop(vm, 1); // pop class instance
+				}
+			}
+			sq_settop(vm, top); // TODO: FIX LEAK PROPERLY
+		}
+		else
+		{
+			this->classObjectInstance = classObjectInstance;
+			const auto top = sq_gettop(vm);
+			sq_addref(vm, &this->classObjectInstance);
+
+			sq_pushroottable(vm); //push root table
+			sq_pushstring(vm, className.c_str(), className.length()); //push class name
+
+			if (sq_get(vm, -2) == SQ_OK) //retrieve class
+			{
+				sq_getstackobj(vm, -1, &classObject);
+				sq_addref(vm, &classObject);
+			}
+
+			sq_settop(vm, top);
+		}
+	}
+
+	Class::~Class()
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_release(vm, &classObject);
+		sq_release(vm, &classObjectInstance);
+		sq_resetobject(&classObject);
+		sq_resetobject(&classObjectInstance);
+	}
+
+	SQObject Class::getInstance() const
+	{
+		return classObjectInstance;
+	}
+}

src/NoNut/core/Class.h

@@ -0,0 +1,42 @@
+#ifndef NONUT_CORE_CLASS_H
+#define NONUT_CORE_CLASS_H
+#include "CommonHeader.h"
+#include <string>
+
+#include "Function.h"
+// ReSharper disable once CppUnusedIncludeDirective
+#include "Property.h"
+#include "Instance.h"
+
+#define METHOD_CTOR(methodName) methodName(#methodName, this->classObjectInstance, this->classObject)
+#define PROPERTY_CTOR(propertyName) propertyName(#propertyName, this->classObjectInstance)
+#define COPY_CTOR(type) type(const type& other) : type(other.getInstance()){} \
+	type& operator=(const type& other) = delete
+
+namespace nonut
+{
+	static constexpr auto CONSTRUCTOR_NAME = "constructor";
+
+	class Class : public Instance
+	{
+	public:
+		Class(const String& className, SQObject classObjectInstance = SQ_NULL);
+		virtual ~Class();
+
+		[[nodiscard]] SQObject getInstance() const override;
+
+	protected:
+		// Object holding information about class
+		SQObject classObject{};
+		// Class object instance
+		SQObject classObjectInstance{};
+
+		template <typename... Args>
+		void classCtor(Args ... args)
+		{
+			Function<void, Args...> ctor(CONSTRUCTOR_NAME, classObjectInstance, classObject);
+			ctor(std::forward<Args>(args)...);
+		}
+	};
+}
+#endif // NONUT_CORE_CLASS_H

src/NoNut/core/CommonHeader.h

@@ -0,0 +1,21 @@
+#ifndef CORE_COMMONHEADER_H_
+#define CORE_COMMONHEADER_H_
+
+#include "sqrat.h"
+
+namespace nonut
+{
+	using Int = SQInteger;
+	using UInt = SQUnsignedInteger;
+	using UInt32 = SQUnsignedInteger32;
+	using Float = SQFloat;
+	using Bool = SQBool;
+	using String = std::string;
+
+	constexpr SQObject SQ_NULL{ OT_NULL };
+}
+
+namespace nonut::g2o{}
+namespace g2o = nonut::g2o;
+
+#endif // CORE_COMMONHEADER_H_

src/NoNut/core/Constant.cpp

@@ -0,0 +1,14 @@
+#include "Constant.h"
+
+namespace nonut
+{
+	SQObject getConstTable()
+	{
+		SQObject obj;
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_pushconsttable(vm);
+		sq_getstackobj(vm, -1, &obj);
+		sq_pop(vm, 1); // No addref needed, since the consttable is always around
+		return obj;
+	}
+}

src/NoNut/core/Constant.h

@@ -0,0 +1,10 @@
+#ifndef NONUT_CORE_CONSTANT_H
+#define NONUT_CORE_CONSTANT_H
+#include "CommonHeader.h"
+#include <sqapi.h>
+
+namespace nonut
+{
+	SQObject getConstTable();
+};
+#endif // NONUT_CORE_CONSTANT_H

src/NoNut/core/Function.h

@@ -0,0 +1,166 @@
+#ifndef NONUT_CORE_FUNCTION_H
+#define NONUT_CORE_FUNCTION_H
+
+#include <optional>
+#include <string>
+
+#include <sqapi.h>
+#include "Utils.h"
+
+#define FUNCTION_CTOR(function) function(#function)
+
+namespace nonut
+{
+	class Class;
+
+	template <typename ReturnType, typename... Args>
+	class Function
+	{
+	public:
+		// Ctor for functions
+		Function(const String& functionName, const SQObject env = getRootTable()) : envObj(env)
+		{
+			HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+			sq_pushobject(vm, envObj);
+			sq_pushstring(vm, functionName.c_str(), functionName.length());
+
+			// get the function from the root table
+			if (SQ_FAILED(sq_get(vm, -2)))
+			{
+				sq_pop(vm, 1);
+				throw;
+			}
+
+			// check the type
+			if (const SQObjectType value_type = sq_gettype(vm, -1); value_type != OT_CLOSURE && value_type !=
+				OT_NATIVECLOSURE)
+			{
+				sq_pop(vm, 2);
+				throw;
+			}
+
+			// get function and add ref
+			sq_getstackobj(vm, -1, &funcObj);
+			sq_addref(vm, &funcObj);
+
+			sq_pop(vm, 2);
+		}
+
+		// Ctor for class methods
+		Function(const String& functionName, const SQObject classObjectInstance,
+		         const SQObject classObject) : envObj(classObjectInstance)
+		{
+			HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+			isClassMethod = true; // Prevent release of the resources cause we don't own them
+			sq_pushobject(vm, classObject);
+			sq_pushstring(vm, functionName.c_str(), functionName.length());
+
+			// get the function from the root table
+			if (SQ_FAILED(sq_get(vm, -2)))
+			{
+				sq_pop(vm, 1);
+				throw;
+			}
+
+			// check the type
+			if (const SQObjectType value_type = sq_gettype(vm, -1); value_type != OT_CLOSURE && value_type !=
+				OT_NATIVECLOSURE)
+			{
+				sq_pop(vm, 2);
+				throw;
+			}
+
+			// get function and add ref
+			sq_getstackobj(vm, -1, &funcObj);
+			sq_addref(vm, &funcObj);
+
+			sq_pop(vm, 2);
+		}
+
+		~Function()
+		{
+			if (!isClassMethod)
+			{
+				HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+				sq_release(vm, &funcObj);
+				sq_release(vm, &envObj);
+				sq_resetobject(&funcObj);
+				sq_resetobject(&envObj);
+			}
+		}
+
+		ReturnType operator()(Args ... args)
+		{
+			HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+			const auto top = sq_gettop(vm);
+			sq_pushobject(vm, funcObj);
+			sq_pushobject(vm, envObj);
+			auto debug = sq_gettop(vm);
+			(sqPushValue(vm, args), ...);
+
+			if constexpr (std::is_same_v<ReturnType, void>)
+			{
+				debug = sq_gettop(vm);
+				auto returnCode = sq_call(vm, ARG_COUNT + 1, SQFalse, SQFalse); // TODO: HANDLE ERROR RETURN CODE
+				sq_pop(vm, 2);
+				sq_settop(vm, top);
+				return void();
+			}
+			else
+			{
+				auto returnCode = sq_call(vm, ARG_COUNT + 1, SQTrue, SQFalse); // TODO: HANDLE ERROR RETURN CODE
+
+				std::optional<ReturnType> result;
+
+				if constexpr (std::derived_from<ReturnType, CustomType>)
+				{
+					result = std::make_optional<ReturnType>();
+					auto intermediateResult = returnVar<SQObject>();
+					result.value().convert(intermediateResult);
+					sq_release(vm, &intermediateResult);
+					sq_resetobject(&intermediateResult);
+				}
+				else if constexpr (std::derived_from<ReturnType, Class>)
+				{
+					auto intermediateResult = returnVar<SQObject>();
+					//result = std::make_optional<ReturnType>(ReturnType(intermediateResult));
+					result.emplace(ReturnType(intermediateResult));
+
+					sq_release(vm, &intermediateResult);
+					sq_resetobject(&intermediateResult);
+				}
+				else
+				{
+					result = std::make_optional<ReturnType>(returnVar<ReturnType>());
+				}
+
+				sq_pop(vm, 2);
+				sq_settop(vm, top);
+				return result.value();
+			}
+		}
+
+		[[nodiscard]] SQObject getObject() const
+		{
+			return funcObj;
+		}
+
+	private:
+		SQObject funcObj{};
+		SQObject envObj{};
+		bool isClassMethod = false;
+		static constexpr auto ARG_COUNT{sizeof...(Args)};
+
+		static SQObject getRootTable()
+		{
+			HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+			SQObject rootTable{};
+			sq_pushroottable(vm);
+			sq_getstackobj(vm, -1, &rootTable);
+			sq_addref(vm, &rootTable);
+			sq_pop(vm, 1); // pop root table
+			return rootTable;
+		}
+	};
+}
+#endif // NONUT_CORE_FUNCTION_H

src/NoNut/core/Instance.h

@@ -0,0 +1,12 @@
+#ifndef NONUT_CORE_INSTANCE_H
+#define NONUT_CORE_INSTANCE_H
+
+namespace nonut
+{
+	class Instance
+	{
+	public:
+		[[nodiscard]] virtual SQObject getInstance() const = 0;
+	};
+}
+#endif //NONUT_CORE_INSTANCE_H

src/NoNut/core/Property.h

@@ -0,0 +1,135 @@
+#ifndef NONUT_CORE_PROPERTY_H
+#define NONUT_CORE_PROPERTY_H
+
+#include <string>
+
+#include <sqapi.h>
+#include "Utils.h"
+#include "Class.h"
+
+namespace nonut
+{
+	template <typename T>
+	T getProperty(const SQObject& object, const String& name)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		const auto top = sq_gettop(vm);
+
+		sq_pushobject(vm, object);
+		sq_pushstring(vm, name.c_str(), name.length());
+
+		if constexpr (std::derived_from<T, Class>)
+		{
+			SQObject intermediateResult{};
+			if (SQ_SUCCEEDED(sq_get(vm, -2))) // pops property
+			{
+				sqGetValue(vm, -1, &intermediateResult);
+				sq_pop(vm, 1); // pops result
+			}
+
+			sq_pop(vm, 1); // pops object
+			sq_settop(vm, top);
+			return T(intermediateResult);
+		}
+		else
+		{
+			T result{};
+
+			if (SQ_SUCCEEDED(sq_get(vm, -2))) // pops property
+			{
+				sqGetValue(vm, -1, &result);
+				sq_pop(vm, 1); // pops result
+			}
+
+			sq_pop(vm, 1); // pops object
+			sq_settop(vm, top);
+			return result;
+		}
+	}
+
+	template <>
+	inline bool getProperty<bool>(const SQObject& object, const String& name)
+	{
+		return getProperty<Bool>(object, name);
+	}
+
+	template <>
+	inline String getProperty<String>(const SQObject& object, const String& name)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		const Int top = sq_gettop(vm);
+		const SQChar* result{};
+
+		sq_pushobject(vm, object);
+		sq_pushstring(vm, name.c_str(), name.length());
+
+		if (SQ_SUCCEEDED(sq_get(vm, -2))) // pops property
+		{
+			sq_getstring(vm, -1, &result);
+			sq_pop(vm, 1); // pops result
+		}
+
+		sq_pop(vm, 1); // pops object
+		sq_settop(vm, top);
+		return result;
+	}
+
+
+	template <typename T>
+	void setProperty(SQObject& object, String& name, T value)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_pushobject(vm, object);
+		sq_pushstring(vm, name.c_str(), name.length());
+		if constexpr (std::derived_from<T, Class>)
+		{
+			sqPushValue(vm, value.getInstance());
+		}
+		else
+		{
+			sqPushValue(vm, value);
+		}
+
+
+		auto result = sq_set(vm, -3); // pops name and value
+
+		sq_pop(vm, 1); // pops object
+	}
+
+	template <typename T, bool IsReadOnly = false>
+	class Property
+	{
+	public:
+		Property(String propertyName, const SQObject object) : object(object),
+		                                                       propertyName(std::move(propertyName))
+		{
+		}
+
+		Property<T>& operator=(const T& other) noexcept
+		{
+			set(other);
+			return *this;
+		}
+
+		operator T()
+		{
+			return this->get();
+		}
+
+		[[nodiscard]] T get() const
+		{
+			return getProperty<T>(object, propertyName);
+		}
+
+		void set(T value)
+		{
+			static_assert(!IsReadOnly, "Cannot set read-only property.");
+			setProperty<T>(object, propertyName, value);
+		}
+
+	private:
+		SQObject object;
+		String propertyName;
+	};
+}
+#endif // NONUT_CORE_PROPERTY_H

src/NoNut/core/StaticClass.cpp

@@ -0,0 +1,32 @@
+#include "StaticClass.h"
+
+namespace nonut
+{
+	StaticClass::StaticClass(const String& className)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		const auto top = sq_gettop(vm);
+
+		sq_pushroottable(vm); //push root table
+		sq_pushstring(vm, className.c_str(), className.length()); //push class instance name
+
+		if (sq_get(vm, -2) == SQ_OK) //retrieve class instance
+		{
+			sq_getstackobj(vm, -1, &classObjectInstance);
+			sq_addref(vm, &classObjectInstance);
+			sq_getclass(vm, -1);
+			sq_getstackobj(vm, -1, &classObject);
+			sq_addref(vm, &classObject);
+		}
+		sq_settop(vm, top); // TODO: FIX LEAK PROPERLY
+	}
+
+	StaticClass::~StaticClass()
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_release(vm, &classObject);
+		sq_release(vm, &classObjectInstance);
+		sq_resetobject(&classObject);
+		sq_resetobject(&classObjectInstance);
+	}
+}

src/NoNut/core/StaticClass.h

@@ -0,0 +1,25 @@
+#ifndef NONUT_CORE_STATIC_CLASS_H
+#define NONUT_CORE_STATIC_CLASS_H
+
+#include "Function.h"
+#include "Property.h"
+
+#define METHOD_CTOR(methodName) methodName(#methodName, this->classObjectInstance, this->classObject)
+#define PROPERTY_CTOR(propertyName) propertyName(#propertyName, this->classObjectInstance)
+
+namespace nonut
+{
+	class StaticClass
+	{
+	public:
+		explicit StaticClass(const String& className);
+		~StaticClass();
+
+	protected:
+		// Object holding information about class
+		SQObject classObject{};
+		// Class object instance
+		SQObject classObjectInstance{};
+	};
+}
+#endif // NONUT_CORE_STATIC_CLASS_H

src/NoNut/core/StringHelpers.h

@@ -0,0 +1,347 @@
+#ifndef NONUT_CORE_STRING_HELPERS_H
+#define NONUT_CORE_STRING_HELPERS_H
+#include <string>
+#include <unordered_map>
+
+namespace nonut
+{
+	const std::unordered_map<unsigned char, std::string_view> WINDOWS1250_UTF8_MAP
+	{
+		{'\x80', "\xe2\x82\xac"}, // euro sign
+		{'\x82', "\xe2\x80\x9a"}, // lower quotation mark
+		{'\x84', "\xe2\x80\x9e"}, // lower quotation marks
+		{'\x85', "\xe2\x80\xa6"}, // ellipsis
+		{'\x86', "\xe2\x80\xa0"}, // dagger
+		{'\x87', "\xe2\x80\xa1"}, // double dagger
+		{'\x89', "\xe2\x80\xb0"}, // per mille
+		{'\x8a', "\xc5\xa0"}, // S with caron
+		{'\x8b', "\xe2\x80\xb9"}, // left guillemet
+		{'\x8c', "\xc5\x9a"}, // S with acute
+		{'\x8d', "\xc5\xa4"}, // T with caron
+		{'\x8e', "\xc5\xbd"}, // Z with caron
+		{'\x8f', "\xc5\xb9"}, // Z with acute
+
+		{'\x91', "\xe2\x80\x98"}, // upper quotation mark (opening)
+		{'\x92', "\xe2\x80\x99"}, // upper quotation mark (closing)
+		{'\x93', "\xe2\x80\x9c"}, // upper quotation marks (opening)
+		{'\x94', "\xe2\x80\x9d"}, // upper quotation marks (closing)
+		{'\x95', "\xe2\x80\xa2"}, // bullet sign
+		{'\x96', "\xe2\x80\x93"}, // en dash
+		{'\x97', "\xe2\x80\x94"}, // em dash
+		{'\x99', "\xe2\x84\xa2"}, // trademark sign
+		{'\x9a', "\xc5\xa1"}, // s with caron
+		{'\x9b', "\xe2\x80\xba"}, // right guillemet
+		{'\x9c', "\xc5\x9b"}, // s with acute
+		{'\x9d', "\xc5\xa5"}, // t with caron
+		{'\x9e', "\xc5\xbe"}, // z with caron
+		{'\x9f', "\xc5\xba"}, // z with acute
+
+		{'\xa0', "\x20"}, // NBSP
+		{'\xa1', "\xcb\x87"}, // caron
+		{'\xa2', "\xcb\x98"}, // breve
+		{'\xa3', "\xc5\x81"}, // L with stroke
+		{'\xa4', "\xc2\xa4"}, // currency sign
+		{'\xa5', "\xc4\x84"}, // A with ogonek
+		{'\xa6', "\xc2\xa6"}, // vertical bar
+		{'\xa7', "\xc2\xa7"}, // section sign
+		{'\xa8', "\xc2\xa8"}, // diaeresis
+		{'\xa9', "\xc2\xa9"}, // copyright sign
+		{'\xaa', "\xc5\x9e"}, // S-cedilla
+		{'\xab', "\xc2\xab"}, // left guillemets
+		{'\xac', "\xc2\xac"}, // negation
+		{'\xad', "\xc2\xad"}, // soft hyphen
+		{'\xae', "\xc2\xae"}, // registered trademark sign
+		{'\xaf', "\xc5\xbb"}, // Z with dot above
+
+		{'\xb0', "\xc2\xb0"}, // degree sign
+		{'\xb1', "\xc2\xb1"}, // plus-minus sign
+		{'\xb2', "\xcb\x9b"}, // ogonek
+		{'\xb3', "\xc5\x82"}, // l with stroke
+		{'\xb4', "\xc2\xb4"}, // acute accent
+		{'\xb5', "\xc2\xb5"}, // Mu letter
+		{'\xb6', "\xc2\xb6"}, // pilcrow
+		{'\xb7', "\xc2\xb7"}, // middle dot
+		{'\xb8', "\xc2\xb8"}, // cedilla
+		{'\xb9', "\xc4\x85"}, // a with ogonek
+		{'\xba', "\xc5\x9f"}, // s-cedilla
+		{'\xbb', "\xc2\xbb"}, // right guillemets
+		{'\xbc', "\xc4\xbd"}, // Lj-
+		{'\xbd', "\xcb\x9d"}, // double acute accent
+		{'\xbe', "\xc4\xbe"}, // lj-
+		{'\xbf', "\xc5\xbc"}, // z with dot above
+
+		{'\xc0', "\xc5\x94"}, // R with acute
+		{'\xc1', "\xc3\x81"}, // A with acute
+		{'\xc2', "\xc3\x82"}, // A-circumflex
+		{'\xc3', "\xc4\x82"}, // A-breve
+		{'\xc4', "\xc3\x84"}, // A with diaeresis
+		{'\xc5', "\xc4\xb9"}, // L with acute
+		{'\xc6', "\xc4\x86"}, // C with acute
+		{'\xc7', "\xc3\x87"}, // C-cedilla
+		{'\xc8', "\xc4\x8c"}, // C with caron
+		{'\xc9', "\xc3\x89"}, // C with acute
+		{'\xca', "\xc4\x98"}, // E with ogonek
+		{'\xcb', "\xc3\x8b"}, // E with diaeresis
+		{'\xcc', "\xc3\x8b"}, // E with caron
+		{'\xcd', "\xc3\x8d"}, // I with acute
+		{'\xce', "\xc3\x8e"}, // I-circumflex
+		{'\xcf', "\xc4\x8e"}, // D with caron
+
+		{'\xd0', "\xc4\x90"}, // crossed D
+		{'\xd1', "\xc5\x83"}, // N with acute
+		{'\xd2', "\xc5\x87"}, // N with caron
+		{'\xd3', "\xc3\x93"}, // O with acute
+		{'\xd4', "\xc3\x94"}, // O-circumflex
+		{'\xd5', "\xc5\x90"}, // O with dobule accute
+		{'\xd6', "\xc3\x96"}, // O with diaeresis
+		{'\xd7', "\xc3\x97"}, // multiplication sign
+		{'\xd8', "\xc5\x98"}, // R with caron
+		{'\xd9', "\xc5\xae"}, // U with diacritic
+		{'\xda', "\xc3\x9a"}, // U with acute
+		{'\xdb', "\xc5\xb0"}, // U with double accent
+		{'\xdc', "\xc3\x9c"}, // U with diaeresis
+		{'\xdd', "\xc3\x9d"}, // Y with acute
+		{'\xdf', "\xc5\xa2"}, // T-cedilla
+
+		{'\xe0', "\xc5\x95"}, // r with acute
+		{'\xe1', "\xc3\xa1"}, // a with acute
+		{'\xe2', "\xc3\xa2"}, // a-circumflex
+		{'\xe3', "\xc4\x83"}, // a-breve
+		{'\xe4', "\xc3\xa4"}, // a with diaeresis
+		{'\xe5', "\xc4\xba"}, // l with acute
+		{'\xe6', "\xc4\x87"}, // c with acute
+		{'\xe7', "\xc3\xa7"}, // c-cedilla
+		{'\xe8', "\xc4\x8d"}, // c with caron
+		{'\xe9', "\xc3\xa9"}, // c with acute
+		{'\xea', "\xc4\x99"}, // e with ogonek
+		{'\xeb', "\xc3\xab"}, // e with diaeresis
+		{'\xec', "\xc4\x9b"}, // e with caron
+		{'\xed', "\xc3\xad"}, // i with acute
+		{'\xee', "\xc3\xae"}, // i-circumflex
+		{'\xef', "\xc4\x8f"}, // d with caron
+
+		{'\xf0', "\xc4\x91"}, // crossed d
+		{'\xf1', "\xc5\x84"}, // n with acute
+		{'\xf2', "\xc5\x88"}, // n with caron
+		{'\xf3', "\xc3\xb3"}, // o with acute
+		{'\xf4', "\xc3\xb4"}, // o-circumflex
+		{'\xf5', "\xc5\x91"}, // o with double accent
+		{'\xf6', "\xc3\xb6"}, // o with diaeresis
+		{'\xf7', "\xc3\xb7"}, // division sign
+		{'\xf8', "\xc5\x99"}, // r with caron
+		{'\xf9', "\xc5\xaf"}, // u with diacritic
+		{'\xfa', "\xc3\xba"}, // u with acute
+		{'\xfb', "\xc5\xb1"}, // u with double accent
+		{'\xfc', "\xc3\xbc"}, // u with diaeresis
+		{'\xfd', "\xc3\xbd"}, // y with acute
+		{'\xfe', "\xc5\xa3"}, // t-cedilla
+		{'\xff', "\xcb\x99"}, // diactric dot
+	};
+
+	const std::unordered_map<std::string_view, unsigned char> UTF8_WINDOWS1250_MAP
+	{
+		{"\xe2\x82\xac", '\x80'}, // euro sign
+		{"\xe2\x80\x9a", '\x82'}, // lower quotation mark
+		{"\xe2\x80\x9e", '\x84'}, // lower quotation marks
+		{"\xe2\x80\xa6", '\x85'}, // ellipsis
+		{"\xe2\x80\xa0", '\x86'}, // dagger
+		{"\xe2\x80\xa1", '\x87'}, // double dagger
+		{"\xe2\x80\xb0", '\x89'}, // per mille
+		{"\xc5\xa0", '\x8a'}, // S with caron
+		{"\xe2\x80\xb9", '\x8b'}, // left guillemet
+		{"\xc5\x9a", '\x8c'}, // S with acute
+		{"\xc5\xa4", '\x8d'}, // T with caron
+		{"\xc5\xbd", '\x8e'}, // Z with caron
+		{"\xc5\xb9", '\x8f'}, // Z with acute
+
+		{"\xe2\x80\x98", '\x91'}, // upper quotation mark (opening)
+		{"\xe2\x80\x99", '\x92'}, // upper quotation mark (closing)
+		{"\xe2\x80\x9c", '\x93'}, // upper quotation marks (opening)
+		{"\xe2\x80\x9d", '\x94'}, // upper quotation marks (closing)
+		{"\xe2\x80\xa2", '\x95'}, // bullet sign
+		{"\xe2\x80\x93", '\x96'}, // en dash
+		{"\xe2\x80\x94", '\x97'}, // em dash
+		{"\xe2\x84\xa2", '\x99'}, // trademark sign
+		{"\xc5\xa1", '\x9a'}, // s with caron
+		{"\xe2\x80\xba", '\x9b'}, // right guillemet
+		{"\xc5\x9b", '\x9c'}, // s with acute
+		{"\xc5\xa5", '\x9d'}, // t with caron
+		{"\xc5\xbe", '\x9e'}, // z with caron
+		{"\xc5\xba", '\x9f'}, // z with acute
+
+		{"\x20", '\xa0'}, // NBSP
+		{"\xcb\x87", '\xa1'}, // caron
+		{"\xcb\x98", '\xa2'}, // breve
+		{"\xc5\x81", '\xa3'}, // L with stroke
+		{"\xc2\xa4", '\xa4'}, // currency sign
+		{"\xc4\x84", '\xa5'}, // A with ogonek
+		{"\xc2\xa6", '\xa6'}, // vertical bar
+		{"\xc2\xa7", '\xa7'}, // section sign
+		{"\xc2\xa8", '\xa8'}, // diaeresis
+		{"\xc2\xa9", '\xa9'}, // copyright sign
+		{"\xc5\x9e", '\xaa'}, // S-cedilla
+		{"\xc2\xab", '\xab'}, // left guillemets
+		{"\xc2\xac", '\xac'}, // negation
+		{"\xc2\xad", '\xad'}, // soft hyphen
+		{"\xc2\xae", '\xae'}, // registered trademark sign
+		{"\xc5\xbb", '\xaf'}, // Z with dot above
+
+		{"\xc2\xb0", '\xb0'}, // degree sign
+		{"\xc2\xb1", '\xb1'}, // plus-minus sign
+		{"\xcb\x9b", '\xb2'}, // ogonek
+		{"\xc5\x82", '\xb3'}, // l with stroke
+		{"\xc2\xb4", '\xb4'}, // acute accent
+		{"\xc2\xb5", '\xb5'}, // Mu letter
+		{"\xc2\xb6", '\xb6'}, // pilcrow
+		{"\xc2\xb7", '\xb7'}, // middle dot
+		{"\xc2\xb8", '\xb8'}, // cedilla
+		{"\xc4\x85", '\xb9'}, // a with ogonek
+		{"\xc5\x9f", '\xba'}, // s-cedilla
+		{"\xc2\xbb", '\xbb'}, // right guillemets
+		{"\xc4\xbd", '\xbc'}, // Lj-
+		{"\xcb\x9d", '\xbd'}, // double acute accent
+		{"\xc4\xbe", '\xbe'}, // lj-
+		{"\xc5\xbc", '\xbf'}, // z with dot above
+
+		{"\xc5\x94", '\xc0'}, // R with acute
+		{"\xc3\x81", '\xc1'}, // A with acute
+		{"\xc3\x82", '\xc2'}, // A-circumflex
+		{"\xc4\x82", '\xc3'}, // A-breve
+		{"\xc3\x84", '\xc4'}, // A with diaeresis
+		{"\xc4\xb9", '\xc5'}, // L with acute
+		{"\xc4\x86", '\xc6'}, // C with acute
+		{"\xc3\x87", '\xc7'}, // C-cedilla
+		{"\xc4\x8c", '\xc8'}, // C with caron
+		{"\xc3\x89", '\xc9'}, // C with acute
+		{"\xc4\x98", '\xca'}, // E with ogonek
+		{"\xc3\x8b", '\xcb'}, // E with diaeresis
+		{"\xc3\x8b", '\xcc'}, // E with caron
+		{"\xc3\x8d", '\xcd'}, // I with acute
+		{"\xc3\x8e", '\xce'}, // I-circumflex
+		{"\xc4\x8e", '\xcf'}, // D with caron
+
+		{"\xc4\x90", '\xd0'}, // crossed D
+		{"\xc5\x83", '\xd1'}, // N with acute
+		{"\xc5\x87", '\xd2'}, // N with caron
+		{"\xc3\x93", '\xd3'}, // O with acute
+		{"\xc3\x94", '\xd4'}, // O-circumflex
+		{"\xc5\x90", '\xd5'}, // O with dobule accute
+		{"\xc3\x96", '\xd6'}, // O with diaeresis
+		{"\xc3\x97", '\xd7'}, // multiplication sign
+		{"\xc5\x98", '\xd8'}, // R with caron
+		{"\xc5\xae", '\xd9'}, // U with diacritic
+		{"\xc3\x9a", '\xda'}, // U with acute
+		{"\xc5\xb0", '\xdb'}, // U with double accent
+		{"\xc3\x9c", '\xdc'}, // U with diaeresis
+		{"\xc3\x9d", '\xdd'}, // Y with acute
+		{"\xc5\xa2", '\xdf'}, // T-cedilla
+
+		{"\xc5\x95", '\xe0'}, // r with acute
+		{"\xc3\xa1", '\xe1'}, // a with acute
+		{"\xc3\xa2", '\xe2'}, // a-circumflex
+		{"\xc4\x83", '\xe3'}, // a-breve
+		{"\xc3\xa4", '\xe4'}, // a with diaeresis
+		{"\xc4\xba", '\xe5'}, // l with acute
+		{"\xc4\x87", '\xe6'}, // c with acute
+		{"\xc3\xa7", '\xe7'}, // c-cedilla
+		{"\xc4\x8d", '\xe8'}, // c with caron
+		{"\xc3\xa9", '\xe9'}, // c with acute
+		{"\xc4\x99", '\xea'}, // e with ogonek
+		{"\xc3\xab", '\xeb'}, // e with diaeresis
+		{"\xc4\x9b", '\xec'}, // e with caron
+		{"\xc3\xad", '\xed'}, // i with acute
+		{"\xc3\xae", '\xee'}, // i-circumflex
+		{"\xc4\x8f", '\xef'}, // d with caron
+
+		{"\xc4\x91", '\xf0'}, // crossed d
+		{"\xc5\x84", '\xf1'}, // n with acute
+		{"\xc5\x88", '\xf2'}, // n with caron
+		{"\xc3\xb3", '\xf3'}, // o with acute
+		{"\xc3\xb4", '\xf4'}, // o-circumflex
+		{"\xc5\x91", '\xf5'}, // o with double accent
+		{"\xc3\xb6", '\xf6'}, // o with diaeresis
+		{"\xc3\xb7", '\xf7'}, // division sign
+		{"\xc5\x99", '\xf8'}, // r with caron
+		{"\xc5\xaf", '\xf9'}, // u with diacritic
+		{"\xc3\xba", '\xfa'}, // u with acute
+		{"\xc5\xb1", '\xfb'}, // u with double accent
+		{"\xc3\xbc", '\xfc'}, // u with diaeresis
+		{"\xc3\xbd", '\xfd'}, // y with acute
+		{"\xc5\xa3", '\xfe'}, // t-cedilla
+		{"\xcb\x99", '\xff'}, // diactric dot
+	};
+
+	inline std::string win1250ToUTF8(const std::string& strRef)
+	{
+		std::string result;
+		result.reserve(strRef.size() * 2);
+
+		for (auto&& c : strRef)
+		{
+			if (WINDOWS1250_UTF8_MAP.contains(static_cast<unsigned char>(c)))
+				result += WINDOWS1250_UTF8_MAP.at(static_cast<unsigned char>(c));
+			else
+				result += c;
+		}
+
+		return result;
+	}
+
+	inline std::string UTF8ToWin1250(const std::string& strRef)
+	{
+		std::string result;
+		result.reserve(strRef.size());
+		size_t charSize = 1;
+
+		for (size_t i = 0; i < strRef.length(); ++i)
+		{
+			if (const int c = static_cast<unsigned char>(strRef[i]); c >= 128)
+			{
+				if (c < 224)
+					charSize = 2;
+				else if (c < 240)
+					charSize = 3;
+				else if (c < 248)
+					charSize = 4;
+				else if (c == 252)
+					charSize = 5;
+				else
+					charSize = 6;
+			}
+			// Update loop index according to UTF8 charSize;
+			i += charSize - 1;
+
+			if (charSize == 1)
+			{
+				result += strRef[i];
+				continue;
+			}
+
+			if (i + charSize > strRef.length())
+			{
+				result += '?';
+				return result;
+			}
+
+			String utfChar;
+			utfChar.reserve(charSize);
+
+			for (size_t j = 0; j < charSize; ++j)
+			{
+				utfChar += strRef[i + j];
+			}
+
+			if (UTF8_WINDOWS1250_MAP.contains(utfChar))
+			{
+				result += static_cast<char>(UTF8_WINDOWS1250_MAP.at(utfChar));
+			}
+			else
+			{
+				result += '?';
+			}
+		}
+
+		return result;
+	}
+}
+#endif // NONUT_CORE_STRING_HELPERS_H

src/NoNut/core/Stringify.h

@@ -0,0 +1,22 @@
+#ifndef NONUT_CORE_STRINGIFY_H
+#define NONUT_CORE_STRINGIFY_H
+
+#include "CommonHeader.h"
+#define QUOTIFY(arg) #arg
+#define STRINGIFY(arg) QUOTIFY(arg)
+
+namespace nonut
+{
+	template <typename T>
+	class Stringify
+	{
+	public:
+		virtual ~Stringify() = default;
+
+		[[nodiscard]] virtual String toString() const
+		{
+			return STRINGIFY(T);
+		}
+	};
+}
+#endif //NONUT_CORE_STRINGIFY_H

src/NoNut/core/UserData.h

@@ -0,0 +1,13 @@
+#ifndef NONUT_CORE_USER_DATA_H
+#define NONUT_CORE_USER_DATA_H
+
+namespace nonut
+{
+	class UserData
+	{
+	public:
+		SQUserPointer userPtr = nullptr;
+		SQUserPointer tagPtr = nullptr;
+	};
+}
+#endif //NONUT_CORE_INSTANCE_H

src/NoNut/core/Utils.h

@@ -0,0 +1,108 @@
+#ifndef NONUT_CORE_UTILS_H
+#define NONUT_CORE_UTILS_H
+
+#include "Instance.h"
+#include "CommonHeader.h"
+
+namespace nonut
+{
+	struct CustomType
+	{
+		virtual void convert(HSQOBJECT object) = 0;
+	};
+
+	template <typename T>
+	void sqGetValue(SQVM* vm, SQInteger idx, T outPtr)
+	{
+		static_assert(
+			std::is_same_v<T, Bool*> ||
+			std::is_same_v<T, Int*> ||
+			std::is_same_v<T, Float*> ||
+			std::is_same_v<T, SQChar**> ||
+			std::is_same_v<T, HSQOBJECT*> ||
+			std::is_same_v<T, SQUserPointer*>,
+			"Not supported return type");
+
+		if constexpr (std::is_same_v<T, Bool*>)
+			sq_getbool(vm, idx, outPtr);
+		if constexpr (std::is_same_v<T, Int*>)
+			sq_getinteger(vm, idx, outPtr);
+		if constexpr (std::is_same_v<T, Float*>)
+			sq_getfloat(vm, idx, outPtr);
+		if constexpr (std::is_same_v<T, SQChar**>)
+			sq_getstring(vm, idx, outPtr);
+		if constexpr (std::is_same_v<T, HSQOBJECT*>)
+		{
+			sq_getstackobj(vm, idx, outPtr);
+			sq_addref(vm, outPtr);
+		}
+		if constexpr (std::is_same_v<T, SQUserPointer*>)
+		{
+			sq_getuserpointer(vm, idx, outPtr);
+		}
+	}
+
+	template <typename T>
+	void sqPushValue(SQVM* vm, T value)
+	{
+		static_assert(
+			std::is_same_v<T, bool> ||
+			std::is_same_v<T, Bool> ||
+			std::is_same_v<T, Int> ||
+			std::is_same_v<T, Float> ||
+			std::is_same_v<T, const SQChar*> ||
+			std::is_same_v<T, SQObject> ||
+			std::is_same_v<T, String> ||
+			std::is_same_v<T, String&> ||
+			std::is_same_v<T, SQUserPointer> ||
+			std::derived_from<T, Instance>,
+			"Not supported return type");
+
+		if constexpr (std::is_same_v<T, bool>)
+			sq_pushbool(vm, value);
+		if constexpr (std::is_same_v<T, Bool>)
+			sq_pushbool(vm, value);
+		if constexpr (std::is_same_v<T, Int>)
+			sq_pushinteger(vm, value);
+		if constexpr (std::is_same_v<T, Float>)
+			sq_pushfloat(vm, value);
+		if constexpr (std::is_same_v<T, SQChar*>)
+			sq_pushstring(vm, value, -1);
+		if constexpr (std::is_same_v<T, SQObject>)
+			sq_pushobject(vm, value);
+		if constexpr (std::is_same_v<T, String> || std::is_same_v<T, String&>)
+			sq_pushstring(vm, value.c_str(), value.length());
+		if constexpr (std::is_same_v<T, SQUserPointer>)
+			sq_pushuserpointer(vm, value);
+		if constexpr (std::derived_from<T, Instance>)
+			sq_pushobject(vm, value.getInstance());
+	}
+
+	template <typename T>
+	T returnVar()
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		static_assert(
+			std::is_same_v<T, SQObject> ||
+			std::is_same_v<T, Bool> ||
+			std::is_same_v<T, Float> ||
+			std::is_same_v<T, Int> ||
+			std::is_same_v<T, String>,
+			"Not supported return type");
+
+		T result{};
+		sqGetValue(vm, -1, &result);
+		sq_pop(vm, 1); // pops result
+		return result;
+	}
+
+	template <>
+	inline String returnVar<String>()
+	{
+		const SQChar* result = "";
+		sq_getstring(Sqrat::DefaultVM::Get(), -1, &result);
+		sq_pop(Sqrat::DefaultVM::Get(), 1); // pops result
+		return result;
+	}
+}
+#endif // NONUT_CORE_UTILS_H