1 files changed, 20 insertions, 0 deletions
diff --git a/src/system.h b/src/system.h
new file mode 100644
index 0000000..489afd0
--- /dev/null
+++ b/src/system.h

@@ -0,0 +1,20 @@
+#ifndef SYSTEM_H_B61A8CEA
+#define SYSTEM_H_B61A8CEA
+class Game;
+class System {
+public:
+  System(Game& game)
+    : game(game) {}
+  virtual ~System() = default;
+  virtual void tick(double dt) = 0;
+protected:
+  Game& game;
+};
+#endif /* end of include guard: SYSTEM_H_B61A8CEA */

diff --git a/src/system.h b/src/system.h new file mode 100644 index 0000000..489afd0 --- /dev/null +++ b/src/system.h
@@ -0,0 +1,20 @@
	1	#ifndef SYSTEM_H_B61A8CEA
	2	#define SYSTEM_H_B61A8CEA
	3
	4	class Game;
	5
	6	class System {
	7	public:
	8	System(Game& game)
	9	: game(game) {}
	10
	11	virtual ~System() = default;
	12
	13	virtual void tick(double dt) = 0;
	14
	15	protected:
	16
	17	Game& game;
	18	};
	19
	20	#endif /* end of include guard: SYSTEM_H_B61A8CEA */