added mode description for diagonal rngmode

Line.h

@@ -58,7 +58,7 @@ public:
         float b = to().x() - from().x();
         float c = from().x() * to().y() - to().x() * from().y();
         
-        float d = abs(a * other.x() + b * other.y() + c);
+        float d = a * other.x() + b * other.y() + c;
 
         return (d * d) / (a * a + b * b);
     }

main.cpp

@@ -35,9 +35,10 @@ int main (int argc, char **argv)
     //                      1. random numbers in screen range
     //                      2. numbers are ordered as rectangle
     //                      3. numbers are ordered as circle around screen center
+    //                      4. numbers are ordered as diagonal line
     // -runs <count>        runs performance mode multiple times
     // -stepsize <size>     time between autosteps; if 0 or not provided -> manual steps
-    // TODO: care a little more <3
+    // TODO: care a little more <3 --> getopt
     bool vis = false;
     bool akl = false;
     std::string fileRnd = "";