[Wesnoth-cvs-commits] wesnoth/src ai.cpp

[Jon Daniel]

CVSROOT:        /cvsroot/wesnoth
Module name:    wesnoth
Branch:         
Changes by:     Jon Daniel <[EMAIL PROTECTED]>  05/01/22 06:27:17

Modified files:
        src            : ai.cpp 

Log message:
        Fixed a division by zero which appears if a unit has no attacks
        and/or no damage at all.

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/wesnoth/wesnoth/src/ai.cpp.diff?tr1=1.132&tr2=1.133&r1=text&r2=text

Patches:
Index: wesnoth/src/ai.cpp
diff -u wesnoth/src/ai.cpp:1.132 wesnoth/src/ai.cpp:1.133
--- wesnoth/src/ai.cpp:1.132    Fri Jan 21 23:17:15 2005
+++ wesnoth/src/ai.cpp  Sat Jan 22 06:27:17 2005
@@ -1,4 +1,4 @@
-/* $Id: ai.cpp,v 1.132 2005/01/21 23:17:15 Sirp Exp $ */
+/* $Id: ai.cpp,v 1.133 2005/01/22 06:27:17 j_daniel Exp $ */
 /*
    Copyright (C) 2003 by David White <[EMAIL PROTECTED]>
    Part of the Battle for Wesnoth Project http://wesnoth.whitevine.net
@@ -1371,6 +1371,13 @@
                weight_sum += weight;
        }
 
+       // catch division by zero here if the attacking unit
+       // has zero attacks and/or zero damage
+       // if it has no attack at all the ai shouldn't prefer
+       // that unit anyway
+       if (weight_sum == 0) {
+               return 0;
+       }
        return sum/weight_sum;
 }