first commit

src/engine/tick.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <SDL2/SDL.h>
+#include "../COMMON.h"
+
+typedef struct Tick
+{
+        u64 current;
+        u64 previous;
+        u64 delta;
+        u64 cumulative;
+} Tick;
+
+void tick_update(Tick* self);