3d:: 3d is affected by cells_drawn_limit; improved the sightrange edit dialog with more options and better help

debug.cpp

@@ -676,6 +676,10 @@ int read_cheat_args() {
     PHASEFROM(2); 
     shift(); vid.cells_drawn_limit = argi();
     }
+  else if(argis("-sight3")) {
+    PHASEFROM(2); 
+    shift_arg_formula(sightranges[geometry]);
+    }
   else if(argis("-quantum")) {
     cheat();
     quantum = true;