TerrorNavArea::OnDestroyNotify

/* TerrorNavArea::OnDestroyNotify(CNavArea*) */

void __thiscall TerrorNavArea::OnDestroyNotify(TerrorNavArea *this,CNavArea *param_1)

{
  int iVar1;
  ushort *puVar2;
  CNavArea *pCVar3;
  int iVar4;
  int iVar5;
  
  CNavArea::OnDestroyNotify((CNavArea *)this,param_1);
  if (*(int *)(TheNavMesh + 0x528) != 0) {
    return;
  }
  if (((uint)param_1 & 3) != 0) {
    Error("Bad nav area pointer");
  }
  iVar1 = *(int *)(this + 0x13c);
  if (iVar1 < 1) {
LAB_009851bb:
    pCVar3 = *(CNavArea **)(this + 0x130);
  }
  else {
    puVar2 = *(ushort **)(this + 0x134);
    iVar5 = *(int *)(TheNavAreas + (*(ushort *)(param_1 + 0x90) & 0x3fff) * 4);
    iVar4 = 0;
    if (*(int *)(TheNavAreas + ((int)(uint)*puVar2 >> 2) * 4) != iVar5) {
      do {
        iVar4 = iVar4 + 1;
        if (iVar4 == iVar1) goto LAB_009851bb;
      } while (*(int *)(TheNavAreas + ((int)(uint)puVar2[iVar4] >> 2) * 4) != iVar5);
      if (iVar4 == -1) goto LAB_009851bb;
    }
    iVar5 = (iVar1 - iVar4) + -1;
    if (iVar5 < 1) {
      *(int *)(this + 0x13c) = iVar1 + -1;
    }
    else {
      _V_memmove(puVar2 + iVar4,puVar2 + iVar4 + 1,iVar5 * 2);
      *(int *)(this + 0x13c) = *(int *)(this + 0x13c) + -1;
    }
    pCVar3 = *(CNavArea **)(this + 0x130);
  }
  if (param_1 != pCVar3) {
    return;
  }
  *(undefined4 *)(this + 0x130) = 0;
  return;
}