public static string GetChance(string[] values, string lastUsed)
{
int selected = -1;
int i = -1;
if (!string.IsNullOrEmpty(lastUsed))
{
i = Array.FindIndex(values, item => item == lastUsed);
}
if (i != -1 && values[i] != lastUsed)
{
SharedHelper.LogError("Error locating value '" + lastUsed + "' in array!");
}
if (i != -1)
{
SharedHelper.Swap(values, i, values.Length - 1); //disable the last used one
if (values[values.Length - 1] != lastUsed)
{
SharedHelper.LogError("Last value in array is incorrect!");
}
selected = rndChances.Next(0, values.Length - 1); //the last one used is excluded from the selection
if (values[selected] == lastUsed)
{
SharedHelper.LogError("Last used is going to be used again! Not correct!");
}
}
else
{
selected = rndChances.Next(0, values.Length);
}
return(values[selected]);
}