[Stratagus-CVS] stratagus/src/missile missile.c

[Russell Smith]

CVSROOT:        /cvsroot/stratagus
Module name:    stratagus
Branch:         
Changes by:     Russell Smith <address@hidden>  03/10/07 04:57:20

Modified files:
        src/missile    : missile.c 

Log message:
        Fixed bug where Parabolic Missile could divide by zero

Patches:
Index: stratagus/src/missile/missile.c
diff -u stratagus/src/missile/missile.c:1.83 
stratagus/src/missile/missile.c:1.84
--- stratagus/src/missile/missile.c:1.83        Sun Oct  5 22:56:07 2003
+++ stratagus/src/missile/missile.c     Tue Oct  7 04:57:20 2003
@@ -26,7 +26,7 @@
 //      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 //      02111-1307, USA.
 //
-//     $Id: missile.c,v 1.83 2003/10/06 02:56:07 jsalmon3 Exp $
+//     $Id: missile.c,v 1.84 2003/10/07 08:57:20 mr-russ Exp $
 
 //@{
 
@@ -962,8 +962,12 @@
            dx = -dx;
            xstep = -1;
        }
-       missile->Angle = (100 * (missile->SourceY - missile->DY)) / 
-           (missile->SourceX - missile->DX);
+       if (missile->SourceX - missile->DX != 0) {
+           missile->Angle = (100 * (missile->SourceY - missile->DY)) / 
+               (missile->SourceX - missile->DX);
+       } else {
+           missile->Angle = 1;
+       }
        missile->Xl = missile->X * 100;
 
        MissileNewHeadingFromXY(missile, dx * xstep, dy * ystep);
@@ -1697,7 +1701,7 @@
     int i;
 
     CLprintf(file,"\n;;; -----------------------------------------\n");
-    CLprintf(file,";;; MODULE: missile-types $Id: missile.c,v 1.83 2003/10/06 
02:56:07 jsalmon3 Exp $\n\n");
+    CLprintf(file,";;; MODULE: missile-types $Id: missile.c,v 1.84 2003/10/07 
08:57:20 mr-russ Exp $\n\n");
 
     //
     // Original number to internal missile-type name.
@@ -1792,7 +1796,7 @@
     Missile* const* missiles;
 
     CLprintf(file,"\n;;; -----------------------------------------\n");
-    CLprintf(file,";;; MODULE: missiles $Id: missile.c,v 1.83 2003/10/06 
02:56:07 jsalmon3 Exp $\n\n");
+    CLprintf(file,";;; MODULE: missiles $Id: missile.c,v 1.84 2003/10/07 
08:57:20 mr-russ Exp $\n\n");
 
     for (missiles = GlobalMissiles; *missiles; ++missiles) {
        SaveMissile(*missiles, file);