transition to game engine

1 files changed, 65 insertions, 0 deletions

diff --git a/src/engine.hpp b/src/engine.hpp
new file mode 100644
index 0000000..fb14093
--- /dev/null
+++ b/src/engine.hpp
@@ -0,0 +1,65 @@
+/**
+ * @file window.hpp
+ * Manages all game systems.
+ *
+ * Copyright (C) 2019 Clyne Sullivan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef ENGINE_HPP_
+#define ENGINE_HPP_
+
+#include <entityx/entityx.h>
+
+#include <thread>
+
+/**
+ * @class Engine
+ * Manages all game entities, events, and systems.
+ */
+class Engine
+{
+private:
+	entityx::EventManager events;
+	entityx::EntityManager entities;
+	entityx::SystemManager systems;
+
+	std::thread logicThread;
+
+	void logicLoop(void);
+	void renderLoop(void);
+
+	bool shouldRun(void);
+
+public:
+	Engine(void) :
+		entities(events),
+		systems(entities, events) {}
+
+	/**
+	 * Initializes the game engine.
+	 * @return Zero on success, non-zero otherwise
+	 */
+	int init(void);
+
+	/**
+	 * Runs the game engine.
+	 * Function returns when game is told to end/exit.
+	 */
+	void run(void);
+};
+
+#endif // ENGINE_HPP_
+