We can go down a level and there's a loading screen for it. The map and motion now matches the directions shown in the raycasting. There's now a compass that shows you the direction you're facing.

stats.hpp

@@ -1,7 +1,10 @@
 #pragma once
 #include <cmath>
+#include <chrono>
 
 struct Stats {
+  using TimeBullshit = std::chrono::time_point<std::chrono::high_resolution_clock>;
+
   double sum = 0.0;
   double sumsq = 0.0;
   unsigned long n = 0L;
@@ -41,5 +44,15 @@ struct Stats {
     n += 1;
   }
 
+  inline TimeBullshit time_start() {
+    return std::chrono::high_resolution_clock::now();
+  }
+
+  inline void sample_time(TimeBullshit start) {
+    auto end = std::chrono::high_resolution_clock::now();
+    auto elapsed = std::chrono::duration<double>(end - start);
+    sample(1/elapsed.count());
+  }
+
   void dump();
 };