diff options
| -rw-r--r-- | src/r_main.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/r_main.c b/src/r_main.c index 3b710a14..bde0f596 100644 --- a/src/r_main.c +++ b/src/r_main.c @@ -1,7 +1,7 @@ // Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // -// $Id: r_main.c 445 2006-03-27 22:56:14Z fraggle $ +// $Id: r_main.c 474 2006-05-03 19:23:54Z fraggle $ // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard @@ -49,7 +49,7 @@ //----------------------------------------------------------------------------- -static const char rcsid[] = "$Id: r_main.c 445 2006-03-27 22:56:14Z fraggle $"; +static const char rcsid[] = "$Id: r_main.c 474 2006-05-03 19:23:54Z fraggle $"; @@ -423,6 +423,7 @@ R_PointToDist fixed_t dy; fixed_t temp; fixed_t dist; + fixed_t frac; dx = abs(x - viewx); dy = abs(y - viewy); @@ -433,8 +434,19 @@ R_PointToDist dx = dy; dy = temp; } + + // Fix crashes in udm1.wad + + if (dx != 0) + { + frac = FixedDiv(dy, dx); + } + else + { + frac = 0; + } - angle = (tantoangle[ FixedDiv(dy,dx)>>DBITS ]+ANG90) >> ANGLETOFINESHIFT; + angle = (tantoangle[frac>>DBITS]+ANG90) >> ANGLETOFINESHIFT; // use as cosine dist = FixedDiv (dx, finesine[angle] ); |