Implements calling Lua.

src/Game.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <cmath>
+#include <cstdint>
+#include <string>
+
+#include "Frame.h"
+#include "iDrawable.h"
+#include "iWritable.h"
+#include "iScene.h"
+#include "Logger.h"
+#include "TickingClock.h"
+
+
+namespace gj {
+
+
+class Game : public iDrawable, public iWritable {
+ public:
+  static constexpr size_t kReserveDrawable = 256;
+  static constexpr size_t kReserveWritable = 64;
+
+  struct Param {
+    iAllocator*   alloc;
+    const iClock* clock;
+
+    uint32_t w, h;
+  };
+
+  Game() = delete;
+  Game(Game&&) = delete;
+  Game(const Game&) = delete;
+
+  Game& operator=(Game&&) = delete;
+  Game& operator=(const Game&) = delete;
+
+  Game(Param&& p);
+
+  void Update() {
+    clock_.Tick();
+
+    frame_.Clear();
+    UniqPtr<iScene> next = scene_->Update(frame_);
+    if (next) {
+      scene_ = std::move(next);
+    }
+  }
+
+  void Draw(Colorbuffer& fb) const override {
+    frame_.Draw(fb);
+  }
+  void Write(Textbuffer& fb) const override {
+    frame_.Write(fb);
+    logger_.Write(fb);
+  }
+
+ private:
+  iAllocator*  alloc_;
+  TickingClock clock_;
+
+  Logger logger_;
+
+  uint32_t w_, h_;
+  Frame    frame_;
+
+  UniqPtr<iScene> scene_;
+};
+
+
+}