CPathFind::FindNodeClosestInRegion

void __thiscall CPathFind::FindNodeClosestInRegion(CPathFind *this, int a2, unsigned __int16 region, float a4, float a5, float a6, int pathType, float *a8, char a9, char a10, char a11, int a12)
{
  CPathFind *v12; // esi@1
  int i; // eax@4
  int v14; // ebp@7
  float *v15; // edi@8
  int v16; // eax@8
  CPathNode *v17; // ecx@9
  float v18; // ST24_4@14
  long double v19; // fst7@14
  long double v20; // fst7@15
  int v21; // [sp+0h] [bp-10h]@8
  float a8a; // [sp+2Ch] [bp+1Ch]@15

  v12 = this;
  if ( this->m_pPathNodes[region] )
  {
    if ( (_BYTE)pathType )
    {
      if ( (unsigned __int8)pathType == 1 )
      {
        i = this->NumVehicleNodes[region];      // start
        pathType = this->NumNodes[region];      // end
      }
      else
      {
        i = pathType;                           // wrong option - loop will be terminated
      }
    }
    else
    {
      // Scan vehicle nodes.
      i = 0;                                    // start
      pathType = this->NumVehicleNodes[region]; // end
    }
    v14 = i;
    if ( i < pathType )
    {
      v15 = a8;
      v16 = 28 * i;
      v21 = v16;
      do
      {
        v17 = (CPathNode *)((char *)v12->m_pPathNodes[region] + v16);
        if ( (!a9 || !(v17->m_dwFlags[0] & 0x20)) && (!a10 || !(v17->m_dwFlags[1] & 2)) )
        {
          if ( a11 == (unsigned __int8)v17->m_dwFlags[0] >> 7 )
          {
            v18 = (long double)v17->m_posn.x * 0.125;
            v19 = (fabs((long double)v17->m_posn.z * 0.125 - a6) * 3.0
                 + fabs((long double)v17->m_posn.y * 0.125 - a5)
                 + fabs(v18 - a4))
                * 0.30000001;
            if ( v19 < *v15 )
            {
              a8a = v19;
              v20 = CPathFind::CalcDistToAnyConnectingLinks(v12, v17, SLODWORD(a4), SLODWORD(a5), SLODWORD(a6)) * 0.2
                  + a8a;
              if ( v20 < *v15 )
              {
                *v15 = v20;
                *(_WORD *)a2 = region;
                *(_WORD *)(a2 + 2) = v14;
              }
            }
          }
        }
        ++v14;
        v16 = v21 + 28;
        v21 += 28;
      }
      while ( v14 < pathType );
    }
  }
}