TerrorNavArea::ComputeVisibilityDelta

/* WARNING: Globals starting with '_' overlap smaller symbols at the same address */
/* TerrorNavArea::ComputeVisibilityDelta(TerrorNavArea const*) const */

undefined4 * __thiscall
TerrorNavArea::ComputeVisibilityDelta(TerrorNavArea *this,TerrorNavArea *param_1)

{
  AreaBindInfo *pAVar1;
  int iVar2;
  int iVar3;
  int iVar4;
  uint uVar5;
  uint uVar6;
  int local_34;
  int local_30;
  short local_1e [7];
  
  if ((ComputeVisibilityDelta(TerrorNavArea_const*)::delta == '\0') &&
     (iVar4 = __cxa_guard_acquire(&ComputeVisibilityDelta(TerrorNavArea_const*)::delta), iVar4 != 0)
     ) {
    ComputeVisibilityDelta(TerrorNavArea_const*)::delta = 0;
    _DAT_01014208 = 0;
    DAT_0101420c = 0;
    _DAT_01014210 = 0;
    __cxa_guard_release(&ComputeVisibilityDelta(TerrorNavArea_const*)::delta);
    __cxa_atexit(CUtlVectorConservative<TerrorNavArea::AreaBindInfo>::~CUtlVectorConservative,
                 &ComputeVisibilityDelta(TerrorNavArea_const*)::delta,&__dso_handle);
  }
  DAT_0101420c = 0;
  if (*(int *)(param_1 + 0x130) == 0) {
    local_30 = *(int *)(param_1 + 0x13c);
    if (0 < *(int *)(this + 0x13c)) {
      local_34 = 0;
      do {
        pAVar1 = (AreaBindInfo *)(*(int *)(this + 0x134) + local_34 * 2);
        uVar5 = (uint)*(ushort *)pAVar1;
        iVar4 = *(int *)((uVar5 & 0xfffc) + TheNavAreas);
        if (iVar4 != 0) {
          if (local_30 < 1) {
            if (local_30 != 0) goto LAB_0097b838;
          }
          else {
            iVar3 = 0;
            do {
              uVar6 = (uint)*(ushort *)(*(int *)(param_1 + 0x134) + iVar3 * 2);
              if ((iVar4 == *(int *)((uVar6 & 0xfffc) + TheNavAreas)) &&
                 ((uVar5 & 3) == (uVar6 & 3))) goto LAB_0097b838;
              iVar3 = iVar3 + 1;
            } while (iVar3 != local_30);
          }
          CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
          ::InsertBefore((CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
                          *)&ComputeVisibilityDelta(TerrorNavArea_const*)::delta,DAT_0101420c,pAVar1
                        );
          local_30 = *(int *)(param_1 + 0x13c);
        }
LAB_0097b838:
        local_34 = local_34 + 1;
      } while (local_34 < *(int *)(this + 0x13c));
    }
    if (0 < local_30) {
      local_30 = 0;
      do {
        uVar5 = *(uint *)(TheNavAreas +
                         ((int)(uint)*(ushort *)(*(int *)(param_1 + 0x134) + local_30 * 2) >> 2) * 4
                         );
        if (uVar5 != 0) {
          iVar4 = *(int *)(this + 0x13c);
          if (iVar4 < 1) {
            if (iVar4 == 0) {
LAB_0097b8c3:
              if ((uVar5 & 3) != 0) {
                Error("Bad nav area pointer");
              }
              local_1e[0] = *(short *)(uVar5 + 0x90) << 2;
              CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
              ::InsertBefore((CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
                              *)&ComputeVisibilityDelta(TerrorNavArea_const*)::delta,DAT_0101420c,
                             (AreaBindInfo *)local_1e);
            }
          }
          else if (uVar5 != *(uint *)(TheNavAreas +
                                     ((int)(uint)**(ushort **)(this + 0x134) >> 2) * 4)) {
            iVar3 = 0;
            do {
              iVar3 = iVar3 + 1;
              if (iVar3 == iVar4) goto LAB_0097b8c3;
            } while (uVar5 != *(uint *)(TheNavAreas +
                                       ((int)(uint)(*(ushort **)(this + 0x134))[iVar3] >> 2) * 4));
          }
        }
        local_30 = local_30 + 1;
        if (*(int *)(param_1 + 0x13c) <= local_30) {
          return &ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
        }
      } while( true );
    }
  }
  else {
    iVar4 = *(int *)(this + 0x13c);
    if (iVar4 != 0) {
      CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>::
      GrowVector((CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
                  *)&ComputeVisibilityDelta(TerrorNavArea_const*)::delta,iVar4);
      CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>::
      ShiftElementsRight((CUtlVector<TerrorNavArea::AreaBindInfo,CUtlMemoryConservative<TerrorNavArea::AreaBindInfo>>
                          *)&ComputeVisibilityDelta(TerrorNavArea_const*)::delta,0,iVar4);
      if (0 < iVar4) {
        iVar2 = 0;
        iVar3 = ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
        do {
          if ((undefined2 *)(iVar3 + iVar2) != (undefined2 *)0x0) {
            *(undefined2 *)(iVar3 + iVar2) = 0;
            iVar3 = ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
          }
          iVar2 = iVar2 + 2;
        } while (iVar2 != iVar4 * 2);
        iVar2 = 0;
        do {
          *(undefined2 *)(iVar3 + iVar2) = *(undefined2 *)(*(int *)(this + 0x134) + iVar2);
          iVar2 = iVar2 + 2;
          iVar3 = ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
        } while (iVar4 * 2 != iVar2);
        return &ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
      }
    }
  }
  return &ComputeVisibilityDelta(TerrorNavArea_const*)::delta;
}