void __thiscall sub_100015A1(int this, int a2)
{
  int i; // esi@1
  int v3; // eax@2
  int v4; // eax@2
  int v5; // edx@2
  int v6; // edx@2
  int v7; // edx@3
  int v8; // edx@4
  int v9; // edx@5
  int v10; // edx@6
  int v11; // eax@13
  int v12; // edx@13
  int v13; // edx@14

  for ( i = 0; i < a2; ++i )
  {
    v4 = *(_DWORD *)(this + 16);
    v6 = *(_BYTE *)(v4 + dword_100042D0);
    v3 = v4 + 1;
    v5 = v6 - 1;
    *(_DWORD *)(this + 16) = v3;
    if ( !v5 )
      goto LABEL_18;
    v7 = v5 - 1;
    if ( !v7 )
    {
      v13 = *(_WORD *)(v3 + dword_100042D0);
      *(_DWORD *)(this + 16) = v3 + 2;
      v11 = *(_DWORD *)(dword_100042D0 + v13);
      goto LABEL_15;
    }
    v8 = v7 - 1;
    if ( !v8 )
    {
      v12 = *(_WORD *)(v3 + dword_100042D0);
      *(_DWORD *)(this + 16) = v3 + 2;
      v11 = *(_DWORD *)(this + 4 * v12 + 48);
LABEL_15:
      *((_DWORD *)Src + i) = v11;
      continue;
    }
    v9 = v8 - 1;
    if ( !v9 )
    {
      *((_DWORD *)Src + i) = *(_BYTE *)(v3 + dword_100042D0);
      ++*(_DWORD *)(this + 16);
      continue;
    }
    v10 = v9 - 1;
    if ( !v10 )
    {
      *((_DWORD *)Src + i) = *(_WORD *)(v3 + dword_100042D0);
      *(_DWORD *)(this + 16) += 2;
      continue;
    }
    if ( v10 == 1 )
    {
LABEL_18:
      *((_DWORD *)Src + i) = *(_DWORD *)(v3 + dword_100042D0);
      *(_DWORD *)(this + 16) += 4;
    }
  }
}