private Enumerator(ReadOnlyArrayWrapper <T> wrapper)
{
_arr = wrapper._arr ??
throw new ArgumentException(
@"The array has not been initialized.", nameof(wrapper));
_idx = -1;
}
private static int AccessViaField(ReadOnlyArrayWrapper <int> arrayWrapper)
{
int sum = 0;
for (int i = 0; i < arrayWrapper.Length; i++)
{
sum += arrayWrapper.Array[i];
}
return(sum);
}
private static int AccessViaLocalVariable(ReadOnlyArrayWrapper <int> arrayWrapper)
{
int sum = 0;
int length = arrayWrapper.Length;
int[] array = arrayWrapper.Array;
for (int i = 0; i < length; i++)
{
sum += array[i];
}
return(sum);
}
/// <summary> /// Create enumerator /// </summary> /// <param name="owner">the owner</param> /// <returns>an enumerator</returns> internal static Enumerator GetEnumerator(ReadOnlyArrayWrapper <T> owner) => new Enumerator(owner);
static bool ValidateLog(string gameLog, ReadOnlyArrayWrapper <UInt256> array)
{
if (string.IsNullOrWhiteSpace(gameLog) || array.IsDefault)
{
return(false);
}
var arr = gameLog.Split(Environment.NewLine, StringSplitOptions.RemoveEmptyEntries);
const string upTo = "0xDEAD_BEEF_CAFE_BABE_DEAD_BEEF_CAFE_BABE_DEAD_BEEF_CAFE_BABE_DEAD_BEEF_CAFE_BABE";
const string oVal =
"0xC0DE_D00D_FEA2_B00B_C0DE_D00D_FEA2_B00B_C0DE_D00D_FEA2_B00B_C0DE_D00D_FEA2_B00B";
const string xVal =
"0xFACE_C0CA_F00D_BAD0_FACE_C0CA_F00D_BAD0_FACE_C0CA_F00D_BAD0_FACE_C0CA_F00D_BAD0";
int expectedExes = -1;
int expectedOes = -1;
var strings = (from str in arr
where str.StartsWith("Logged at") && (str.Contains(upTo, StringComparison.OrdinalIgnoreCase) ||
str.Contains(xVal, StringComparison.OrdinalIgnoreCase) ||
str.Contains(oVal, StringComparison.OrdinalIgnoreCase))
select str.Split(' ', StringSplitOptions.RemoveEmptyEntries)).ToArray();
bool foundDeadBeef = false, foundCounts = false;
int indexOfDeadBeef = -1;
int strIdx = -1;
foreach (var item in strings)
{
++strIdx;
switch (item.Length)
{
case 23:
if (string.Equals(item[6].Trim(), upTo, StringComparison.OrdinalIgnoreCase))
{
if (foundDeadBeef)
{
return(false);
}
indexOfDeadBeef = strIdx;
foundDeadBeef = true;
}
break;
case 25:
string xCt = item[4];
string oCt = item[9];
bool parsedOk = int.TryParse(oCt, out expectedOes) && int.TryParse(xCt, out expectedExes);
if (!parsedOk)
{
return(false);
}
foundCounts = true;
break;
}
if (foundCounts && foundDeadBeef)
{
break;
}
}
if (indexOfDeadBeef < 0 || indexOfDeadBeef >= strings.Length || expectedExes == -1 || expectedOes == -1)
{
return(false);
}
string deadBeef = strings[indexOfDeadBeef].Last();
bool gotIdx = int.TryParse(deadBeef, out int lastIdxToConsider);
if (!gotIdx)
{
return(false);
}
var constants = new DeadBeefCafeBabeGameConstants();
var slice = array.AsSpan().Slice(0, lastIdxToConsider + 1);
int xCount = 0;
int oCount = 0;
int deadBeefCount = 0;
foreach (ref readonly var value in slice)
{
if (value == constants.LookForNumber)
{
++deadBeefCount;
}
else if (value == constants.XNumber)
{
++xCount;
}
else if (value == constants.ONumber)
{
++oCount;
}
else
{
return(false);
}
}
int difference = Math.Abs(xCount - oCount);
if (difference == 0 || difference % 13 != 0)
{
return(false);
}
return(deadBeefCount == 1 && xCount == expectedExes &&
oCount == expectedOes);
}
