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.

easings.hpp

@@ -0,0 +1,40 @@
+#pragma once
+#include <cmath>
+
+namespace ease {
+
+  inline double sine(double x) {
+    return (std::sin(x) + 1.0) / 2.0;
+  }
+
+  inline double out_circ(double x) {
+    return std::sqrt(1.0f - std::pow(x - 1.0f, 2.0f));
+  }
+
+  inline double out_bounce(double x) {
+    constexpr const double n1 = 7.5625;
+    constexpr const double d1 = 2.75;
+
+    if (x < 1 / d1) {
+      return n1 * x * x;
+    } else if (x < 2 / d1) {
+      x -= 1.5;
+      return n1 * (x / d1) * x + 0.75;
+    } else if (x < 2.5 / d1) {
+      x -= 2.25;
+      return n1 * (x / d1) * x + 0.9375;
+    } else {
+      x -= 2.625;
+      return n1 * (x / d1) * x + 0.984375;
+    }
+  }
+
+  inline double in_out_back(double x) {
+    constexpr const double c1 = 1.70158;
+    constexpr const double c2 = c1 * 1.525;
+
+    return x < 0.5
+      ? (std::pow(2.0 * x, 2.0) * ((c2 + 1.0) * 2.0 * x - c2)) / 2.0
+      : (std::pow(2.0 * x - 2.0, 2.0) * ((c2 + 1.0) * (x * 2.0 - 2.0) + c2) + 2.0) / 2.0;
+  }
+}