engine.hpp

 
#pragma once
#include <cstdint>
#include <glm/vec3.hpp>
#include <toast/uid.hpp>
 
namespace assets {
class Prefab;
}
 
namespace renderer {
class VulkanCore;
class VulkanRenderer;
class SharedTextureOutputTarget;
struct ViewportFrameDesc;
}
 
namespace toast {
 
struct EnginePimpl;
 
class Engine final {
public:
  Engine() noexcept;
  ~Engine() noexcept;
  static auto get() noexcept -> Engine*;
 
  Engine(Engine&) = delete;
  Engine(Engine&&) = delete;
  auto operator=(const Engine&) -> Engine& = delete;
  auto operator=(const Engine&&) -> Engine& = delete;
 
  void init();
  void tick();
  auto shouldClose() -> bool;
  void test();
 
  void reloadSettings();
 
  // window
  void createSDLWindow(const char*);
  void createAvaloniaWindow();
 
  auto shootVoxel(
      const glm::vec3& origin, const glm::vec3& direction, float max_distance, float energy_density, float fracture_radius
  ) -> bool;
 
  // nodes
  auto createWorkspace(std::string_view type) -> std::pair<UID, std::string>;
  auto openWorkspace(UID uid) -> std::pair<UID, std::string>;
  auto openWorkspace(UID uid, std::string_view source_uri) -> std::pair<UID, std::string>;
  auto playWorkspace(UID source_handle) -> std::pair<UID, std::string>;
  void destroyWorkspace(UID handle);
 
  void requireTickThread(std::string_view what) const;
  [[nodiscard]]
  auto onTickThread() const -> bool;
 
  auto activeWorkspace() -> UID;
  void publishPrefab(UID uid, const assets::Prefab& prefab);

  void refreshNodeInfos();

  auto getViewportFrame(void* dst, uint32_t dst_capacity, renderer::ViewportFrameDesc* out) -> int;

  [[nodiscard]]
  auto viewportTarget() -> renderer::SharedTextureOutputTarget*;

  void beginApplication();

  void popApplication();

  void startGame();
 
private:
  void syncOwnerListeners();
 
  EnginePimpl* m;
  static Engine* instance;
};
 
/*
 *  The order to call and initialize the engine on the Editor and the Player should be:
 *    - Create an engine -> toast_create()
 *    - Create a game -> game_create()
 *    - Set the working directories -> toast_set_working_directory()
 *    - Call Init() -> toast_init()
 *    - Create window -> toast_create_[...]_window()
 */
 
}