lua_engine.hpp

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/*
 * Copyright (C) 2022 Konstanty Misiak
 *
 * SPDX-License-Identifier: MIT
 */
 
#pragma once
#include <jng/core/base.hpp>
#include <jng/scene/entity.hpp>
 
class lua_State;
 
namespace jng {
 
    struct LuaScriptComponent;
    
    namespace LuaEngine {
 
    struct ScriptData
    {
        enum class PropertyType
        {
            Number = 0
        };
 
        struct Property
        {
            PropertyType type;
            void* value;
        };
 
        bool hasOnCreate = false;
        bool hasOnDestroy = false;
        bool hasOnUpdate = false;
 
        using PropertiesContainerType = std::map<std::string, Property>;
        PropertiesContainerType properties;
    };
 
    void init();
    void shutdown();
 
    std::string registerScript(const std::filesystem::path& path);
    void unregisterScripts();
    ScriptData getScriptData(const std::string& name);
 
    void onCreate(Entity entity, LuaScriptComponent& lsc);
    void onDestroy(Entity entity, LuaScriptComponent& lsc);
    void onUpdate(Entity entity, LuaScriptComponent& lsc, float dt);
 
    void printLuaStack(const char* file, int line);
    
    } // namespace LuaEngine 
 
} // namespace jng
 
#ifdef JNG_DEBUG
#define JNG_PRINT_LUA_STACK() jng::LuaEngine::printLuaStack(__FILE__, __LINE__)
#else
#define JNG_PRINT_LUA_STACK()
#endif