Adapting web version

src/Environment.h

@@ -35,8 +35,15 @@ public:
     static const float CONST_Z_NEAR;
     static const float CONST_Z_FAR;
 
+    // Virtual projection dimensions used for all 2D/UI rendering.
+    // These maintain the screen's actual aspect ratio but normalize the
+    // height to 720 (landscape) or width to 720 (portrait), giving a
+    // consistent coordinate space regardless of physical screen resolution.
+    static float projectionWidth;
+    static float projectionHeight;
 
-
+    // Call this once at startup and whenever the window is resized.
+    static void computeProjectionDimensions();
 };
 
 } // namespace ZL