From 7a158a0bf8f68069c5ee645f569de4bd83dc3308 Mon Sep 17 00:00:00 2001
From: Samsonium <me@samsonium.ru>
Date: Thu, 1 Oct 2026 14:55:42 +0300
Subject: [PATCH] feat: update engine features

- WIP start/stop methods
- Remove test module
---
 include/engine/core/engine.hpp        | 18 +++++++++++++++++-
 include/engine/core/engine_module.hpp | 20 +++++++++++++++++++-
 src/engine/core/engine.cpp            | 27 +++++++++++++++++++++++++++
 src/engine/modules/test1/test1.hpp    | 22 ----------------------
 4 files changed, 63 insertions(+), 24 deletions(-)
 delete mode 100644 src/engine/modules/test1/test1.hpp

diff --git a/include/engine/core/engine.hpp b/include/engine/core/engine.hpp
index e6b0284..7fd3882 100644
--- a/include/engine/core/engine.hpp
+++ b/include/engine/core/engine.hpp
@@ -12,16 +12,32 @@
 class MscEngine : public IMscEngineModuleAPI
 {
 private:
-  /// Loaded modules list
+  using clock = std::chrono::steady_clock;
+
+  /// @brief Loaded modules list
   std::vector<std::shared_ptr<MscEngineModule>> _modules;
+
+  /// @brief Common event bus
   MscEventBus _bus;
 
+  /// @brief Is engine running rn
+  bool _isRunning = false;
+
+  /// @brief Last update time
+  clock::time_point _lastUpdate;
+
 public:
   /// Actual version
   static uint16_t REV;
 
   MscEngine(std::vector<std::shared_ptr<MscEngineModule>> modules);
 
+  /// @brief Start engine
+  void start();
+
+  /// @brief Stop engine
+  void stop();
+
   MscEventBus &getBus() override;
   std::unordered_map<std::string, std::uint16_t> getLoadedModules() const override;
   MscEngineModule &getModule(const std::string &name) override;
diff --git a/include/engine/core/engine_module.hpp b/include/engine/core/engine_module.hpp
index 19978a6..a1fc3bc 100644
--- a/include/engine/core/engine_module.hpp
+++ b/include/engine/core/engine_module.hpp
@@ -23,8 +23,26 @@ public:
   virtual const std::unordered_map<std::string, MscRevisionRange> &
   getDependencies() const = 0;
 
-  /// Module initialization phase
+  /// @brief Module initialization
+  /// @param engine engine public API for modules
   virtual void onInitialize(IMscEngineModuleAPI &engine) = 0;
+
+  /// @brief Engine start event handler
+  /// @param engine engine public API for modules
+  virtual void onStart(IMscEngineModuleAPI &engine) = 0;
+
+  /// @brief Engine update cycle step
+  /// @param engine engine public API for modules
+  /// @param dt loop delta
+  virtual void onUpdate(IMscEngineModuleAPI &engine, float dt) = 0;
+
+  /// @brief Engine stop event handler
+  /// @param engine engine public API for modules
+  virtual void onStop(IMscEngineModuleAPI &engine) = 0;
+
+  /// @brief Module destroying
+  /// @param engine engine public API for modules
+  virtual void onDestory(IMscEngineModuleAPI &engine) = 0;
 };
 
 #endif // __MCS_ENGINE_MODULE_HPP__
diff --git a/src/engine/core/engine.cpp b/src/engine/core/engine.cpp
index 95f8ff6..f816867 100644
--- a/src/engine/core/engine.cpp
+++ b/src/engine/core/engine.cpp
@@ -49,11 +49,38 @@ MscEngine::MscEngine(std::vector<std::shared_ptr<MscEngineModule>> modules)
             std::to_string(current_rev));
       }
     }
+
+    module.get()->onInitialize(*this);
   }
 
   _modules = std::move(modules);
 }
 
+void MscEngine::start()
+{
+  if (_isRunning)
+    return;
+
+  _isRunning = true;
+  _lastUpdate = clock::now();
+
+  double accumulator = 0.0;
+  constexpr double fixedDt = 1.0 / 30.0;
+
+  while (_isRunning)
+  {
+    //
+  }
+}
+
+void MscEngine::stop()
+{
+  if (!_isRunning)
+    return;
+
+  _isRunning = false;
+}
+
 MscEventBus &MscEngine::getBus()
 {
   return _bus;
diff --git a/src/engine/modules/test1/test1.hpp b/src/engine/modules/test1/test1.hpp
deleted file mode 100644
index cac5322..0000000
--- a/src/engine/modules/test1/test1.hpp
+++ /dev/null
@@ -1,22 +0,0 @@
-#include "engine/modules/test1/test1.hpp"
-#include "engine/core/engine_module_api.hpp"
-#include "engine/utils/rev_range.hpp"
-#include <cstdint>
-#include <string>
-#include <unordered_map>
-
-std::string Test1Module::getName() const { return "test1"; }
-
-uint16_t Test1Module::getRev() const { return 1; }
-
-const std::unordered_map<std::string, MscRevisionRange> &
-Test1Module::getDependencies() const
-{
-  static const std::unordered_map<std::string, MscRevisionRange> deps{};
-  return deps;
-}
-
-void Test1Module::onInitialize(IMscEngineModuleAPI &engine)
-{
-  (void)(engine);
-}