add vertices draw limit after I accidentally removed it

include/config.hpp

@@ -48,7 +48,7 @@ constexpr int REPULSION_GRID_REFRESH = 5;            // Grid rebuild freq
 constexpr float VERTEX_SIZE = 0.5;
 constexpr Color VERTEX_COLOR = GREEN;
 constexpr Color EDGE_COLOR = DARKGREEN;
-constexpr int DRAW_VERTICES_LIMIT = 100000;
+constexpr int DRAW_VERTICES_LIMIT = 1000000;
 
 // Klotski Drawing
 constexpr int BOARD_PADDING = 5;

include/physics.hpp

@@ -89,6 +89,10 @@ public:
   MassSpringSystem() {
 #ifndef BARNES_HUT
     last_build = REPULSION_GRID_REFRESH;
+    std::cout << "Using uniform grid repulsion force calculation." << std::endl;
+#else
+    std::cout << "Using Barnes-Hut + octree repulsion force calculation."
+              << std::endl;
 #endif
 
 #ifndef WEB