Temp-Classes/script/scrNativeHandler.hpp

#pragma once
#include <cstddef>
#include <cstdint>
#include <utility>

namespace rage
{
    class scrNativeCallContext
    {
    public:
        void reset()
        {
            m_arg_count = 0;
            m_data_count = 0;
        }

        template <typename T>
        void push_arg(T &&value)
        {
            static_assert(sizeof(T) <= sizeof(std::uint64_t));
            *reinterpret_cast<std::remove_cv_t<std::remove_reference_t<T>>*>(reinterpret_cast<std::uint64_t*>(m_args) + (m_arg_count++)) = std::forward<T>(value);
        }

        template <typename T>
        T &get_arg(std::size_t index)
        {
            static_assert(sizeof(T) <= sizeof(std::uint64_t));
            return *reinterpret_cast<T*>(reinterpret_cast<std::uint64_t*>(m_args) + index);
        }

        template <typename T>
        void set_arg(std::size_t index, T &&value)
        {
            static_assert(sizeof(T) <= sizeof(std::uint64_t));
            *reinterpret_cast<std::remove_cv_t<std::remove_reference_t<T>>*>(reinterpret_cast<std::uint64_t*>(m_args) + index) = std::forward<T>(value);
        }

        template <typename T>
        T *get_return_value()
        {
            return reinterpret_cast<T*>(m_return_value);
        }

        template <typename T>
        void set_return_value(T &&value)
        {
            *reinterpret_cast<std::remove_cv_t<std::remove_reference_t<T>>*>(m_return_value) = std::forward<T>(value);
        }
    protected:
        void *m_return_value;
        std::uint32_t m_arg_count;
        void *m_args;
        std::int32_t m_data_count;
        std::uint32_t m_data[48];
    };
    static_assert(sizeof(scrNativeCallContext) == 0xE0);

    using scrNativeHash = std::int64_t;
    using scrNativePair = std::pair<scrNativeHash, scrNativeHash>;
    using scrNativeHandler = void(*)(scrNativeCallContext*);
}