Method castRay

Engine/source/T3D/player.cpp:6004–6053

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bool Player::castRay(const Point3F &start, const Point3F &end, RayInfo* info)
{
   // In standard Torque there's a rather brute force culling of all
   // non-enabled players (corpses) from the ray cast. But, to
   // demonstrate a resurrection spell, we need corpses to be
   // selectable, so this code change allows consideration of corpses
   // in the ray cast if corpsesHiddenFromRayCast is set to false.
   if (sCorpsesHiddenFromRayCast && getDamageState() != Enabled)
      return false;

   // Collide against bounding box. Need at least this for the editor.
   F32 st,et,fst = 0.0f,fet = 1.0f;
   F32 *bmin = &mObjBox.minExtents.x;
   F32 *bmax = &mObjBox.maxExtents.x;
   F32 const *si = &start.x;
   F32 const *ei = &end.x;

   for (S32 i = 0; i < 3; i++) {
      if (*si < *ei) {
         if (*si > *bmax || *ei < *bmin)
            return false;
         F32 di = *ei - *si;
         st = (*si < *bmin)? (*bmin - *si) / di: 0.0f;
         et = (*ei > *bmax)? (*bmax - *si) / di: 1.0f;
      }
      else {
         if (*ei > *bmax || *si < *bmin)
            return false;
         F32 di = *ei - *si;
         st = (*si > *bmax)? (*bmax - *si) / di: 0.0f;
         et = (*ei < *bmin)? (*bmin - *si) / di: 1.0f;
      }
      if (st > fst) fst = st;
      if (et < fet) fet = et;
      if (fet < fst)
         return false;
      bmin++; bmax++;
      si++; ei++;
   }

   info->normal = start - end;
   info->normal.normalizeSafe();
   getTransform().mulV( info->normal );

   info->t = fst;
   info->object = this;
   info->point.interpolate(start,end,fst);
   info->material = 0;
   return true;
}


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