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// Returns if enemy can be shoot through some obstacle
// TODO: After seeing the disassembled CS Routine it could
// be speedup and simplified a lot

bool IsShootableThruObstacle(edict_t *pEdict,Vector vecDest)
{
          Vector vecSrc = pEdict->v.origin+pEdict->v.view_ofs;
          Vector vecDir = (vecDest - vecSrc).Normalize();  // 1 unit long
          Vector vecPoint;
          int iThickness=0;
          int iHits=0;
            
          edict_t *pentIgnore=pEdict->v.pContainingEntity;
          TraceResult tr;
          UTIL_TraceLine(vecSrc, vecDest, ignore_monsters,ignore_glass, pentIgnore, &tr);
          while(tr.flFraction != 1.0 && iHits<3)
          {
                  iHits++;
                  iThickness++;
                  vecPoint=tr.vecEndPos+vecDir;
                  while((UTIL_PointContents(vecPoint) == CONTENTS_SOLID) && (iThickness<64))
                  {
                          vecPoint=vecPoint+vecDir;
                          iThickness++;
                  }
                  UTIL_TraceLine(vecPoint, vecDest, ignore_monsters,ignore_glass, pentIgnore, &tr);
          }
          if(iHits<3 && iThickness<64)
          {
                  float f_distance=(vecDest - vecPoint).Length();
                  if(f_distance<112)
                          return TRUE;
          }
          return FALSE;
}

bool Bot::IsShootableThruObstacle (Vector dest)
{
    // this function returns if enemy can be shoot through some obstacle

    if (m_skill <= 60 || !IsWeaponShootingThroughWall (m_currentWeapon))
       return false;

    Vector source = EyePosition ();
    Vector direction = (dest - source).Normalize ();  // 1 unit long
    Vector point = Vector::GetNull ();

    int thikness = 0;
    int numHits = 0;

    TraceResult tr;
    TraceLine (source, dest, true, true, GetEntity (), &tr);

    while (tr.flFraction != 1.0 && numHits < 3)
    {
       numHits++;
       thikness++;

       point = tr.vecEndPos + direction;

       while (POINT_CONTENTS (point) == CONTENTS_SOLID && thikness < 84)
       {
          point = point + direction;
          thikness++;
       }
       TraceLine (point, dest, true, true, GetEntity (), &tr);
    }

    if (numHits < 3 && thikness < 74)
    {
       if ((dest - point).GetLengthSquared () < 13143)
          return true;
    }
    return false;
}