120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
#ifndef SRC_ENGINE_H_
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#define SRC_ENGINE_H_
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#include <string>
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#include <memory>
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#include <vector>
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#include <stdexcept>
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#include <filesystem>
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#include "typedefs.h"
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#include "settings.h"
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#include "assets/Assets.h"
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#include "content/Content.h"
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#include "content/ContentPack.h"
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#include "files/engine_paths.h"
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class Level;
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class Screen;
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class EnginePaths;
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class ResPaths;
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namespace fs = std::filesystem;
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namespace gui {
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class GUI;
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}
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class initialize_error : public std::runtime_error {
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public:
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initialize_error(const std::string& message) : std::runtime_error(message) {}
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};
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class Engine {
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std::unique_ptr<Assets> assets = nullptr;
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std::shared_ptr<Screen> screen = nullptr;
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std::vector<ContentPack> contentPacks;
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EngineSettings& settings;
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std::unique_ptr<Content> content = nullptr;
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EnginePaths* paths;
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std::unique_ptr<ResPaths> resPaths = nullptr;
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uint64_t frame = 0;
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double lastTime = 0.0;
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double delta = 0.0;
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std::unique_ptr<gui::GUI> gui;
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void updateTimers();
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void updateHotkeys();
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public:
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Engine(EngineSettings& settings, EnginePaths* paths);
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~Engine();
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/**
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* Start main engine input/update/render loop
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* Automatically sets MenuScreen
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*/
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void mainloop();
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/**
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* Set screen (scene).
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* nullptr may be used to delete previous screen before creating new one
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* example:
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*
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* engine->setScreen(nullptr);
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* engine->setScreen(std::make_shared<...>(...));
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*
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* not-null value must be set before next frame
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*/
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void setScreen(std::shared_ptr<Screen> screen);
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/**
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* Change locale to specified
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* @param locale isolanguage_ISOCOUNTRY (example: en_US)
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*/
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void setLanguage(std::string locale);
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/**
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* Load all selected content-packs and reload assets
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*/
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void loadContent();
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/**
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* Collect world content-packs and load content
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* @see loadContent
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* @param folder world folder
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*/
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void loadWorldContent(const fs::path& folder);
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/**
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* Collect all available content-packs from res/content
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*/
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void loadAllPacks();
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/** Get current frame delta-time */
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double getDelta() const;
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/** Get active assets storage instance */
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Assets* getAssets();
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/** Get main UI controller */
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gui::GUI* getGUI();
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/** Get writeable engine settings structure instance */
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EngineSettings& getSettings();
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/** Get engine filesystem paths source */
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EnginePaths* getPaths();
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/** Get current Content instance */
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const Content* getContent() const;
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/** Get selected content packs */
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std::vector<ContentPack>& getContentPacks();
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/** Get current screen */
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std::shared_ptr<Screen> getScreen();
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};
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#endif // SRC_ENGINE_H_
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