Fixed bug with distance calculations... distance <> slope

gamecore.cpp

@@ -1,9 +1,6 @@
 #include "gamecore.h"
 #include "drawutils.h"
-
-#ifdef DEBUG
-#include <iostream>
-#endif
+#include "debug.h"
 
 int GameCore::NODE_SIZE = 25;
 int GameCore::MAX_MOVE_DISTANCE = 200;
@@ -132,6 +129,14 @@ void GameCore::on_lbutton_down(int x, int y)
     new_v.x = x;
     new_v.y = y;
 
+#ifdef DEBUG
+    if (v != NULL)
+	cerr << "debug: GameCore::on_lbutton_down(): distance="
+	     << Vertex::distance(*v, new_v) << "\n";
+    else
+	cerr << "debug: GameCore::on_lbutton_down(): distance=0, current_vertex is NULL\n";
+#endif
+
     if (v != NULL && (Vertex::distance(*v, new_v) > MAX_MOVE_DISTANCE))
 	return;