Jiga228
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
#pragma once
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#include <vector>
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#include <fstream>
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#include <string>
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#include "Game/SaveMap/SaveMap.hpp"
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class GameInstance;
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class World;
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struct WorldFactory
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{
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const char* world_name;
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std::shared_ptr<World>(*factory)(GameInstance&);
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};
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// Создаёт ассоцеативный список
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// В нём соспоставляются имина уровней и фабрики их классов
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#define WORLDS_LIST std::vector<WorldFactory> world_factories =
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// Генерирует элемент списка
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#define GENERATE_WORLD_FACTORY(Class, WorldName) WorldFactory{#WorldName,\
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[](GameInstance& game_insance)->std::shared_ptr<World> {\
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std::shared_ptr<Class> world = std::make_shared<Class>(game_insance);\
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std::ifstream config_file("./Worlds/" #WorldName ".world");\
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if (config_file.fail())\
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throw std::runtime_error("Can't open world file");\
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config_file.seekg(0, std::ios::end);\
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size_t file_size = config_file.tellg();\
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config_file.seekg(0, std::ios::beg);\
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std::string data;\
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data.resize(file_size);\
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config_file.read(data.data(), file_size);\
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world->load(std::make_shared<SaveMap>(data));\
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return std::static_pointer_cast<World>(world);\
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}},
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/*
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* Пример использования:
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WORLDS_LIST {
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GENERATE_WORLD_FACTORY(Sometime_class_world_One, WorldName_One)
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GENERATE_WORLD_FACTORY(Sometime_class_world_Two, WorldName_Two)
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};
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*/ |