first commit

2026-06-05 11:45:04 +03:00
commit b457544071
29 changed files with 1725 additions and 0 deletions
@@ -0,0 +1,119 @@
+#include "Engine.h"
+
+#include <chrono>
+#include <thread>
+
+Engine::ErrorCode Engine::run()
+{
+    ErrorCode errorCode =
+            ErrorCode::success;
+
+    auto lastUpdate =
+            std::chrono::steady_clock::now();
+
+    auto lag =
+            std::chrono::milliseconds(0);
+
+    const auto timeQuantum =
+            std::chrono::milliseconds(15);
+
+    while (!end())
+    {
+        // INPUT
+        //=================================
+
+        updateInput();
+
+        //=================================
+
+        // UPDATE
+        //=================================
+
+        auto now =
+                std::chrono::steady_clock::now();
+
+        lag +=
+                std::chrono::duration_cast
+                        <
+                                std::chrono::milliseconds
+                        >
+                        (
+                                now - lastUpdate
+                        );
+
+        lastUpdate = now;
+
+        while (lag >= timeQuantum)
+        {
+            lag -= timeQuantum;
+
+            update(
+                    static_cast<int>(
+                            timeQuantum.count()
+                    )
+            );
+        }
+
+        //=================================
+
+        // RENDER
+        //=================================
+
+        if (!m_PaintDevice.ready())
+        {
+            errorCode =
+                    ErrorCode::paint_device_not_ready;
+
+            break;
+        }
+
+        m_PaintDevice.clear();
+
+        render(m_PaintDevice);
+
+        m_PaintDevice.render();
+
+        //=================================
+
+        std::this_thread::sleep_for(
+                std::chrono::milliseconds(1)
+        );
+    }
+
+    return errorCode;
+}
+
+void Engine::updateInput()
+{
+    int key = getch();
+
+    while (key != ERR)
+    {
+        if (
+                m_TrackedKeys.find(key)
+                !=
+                m_TrackedKeys.end()
+                )
+        {
+            on_button_press(key);
+        }
+
+        key = getch();
+    }
+}
+
+void Engine::track_key(int key)
+{
+    m_TrackedKeys.insert(key);
+}
+
+void Engine::untrack_key(int key)
+{
+    auto it =
+            m_TrackedKeys.find(key);
+
+    if (it != m_TrackedKeys.end())
+    {
+        m_TrackedKeys.erase(it);
+    }
+}