public static bool IsSet(this byte flags, FlagIndex flagIndex)
{
var i = (int)flagIndex;
var flagVal = 1 << i;
return((flags & flagVal) != 0);
}
/// <summary>
/// Adds a flag name to the story model's flag index.
/// The flag index contains flag names, but no values.
/// </summary>
public void AddFlagToIndex(string flag)
{
var name = ExtractFlagNameFromExpression(flag);
if (!FlagIndex.Contains(name))
{
FlagIndex.Add(name);
}
}
public static byte Set(this byte flags, FlagIndex flagIndex, bool on)
{
var i = (int)flagIndex;
var flagVal = 1 << i;
if (@on)
{
return((byte)(flags | flagVal));
}
return((byte)(flags & (0xff - flagVal)));
}
public static byte Toggle(this byte flags, FlagIndex flagIndex)
{
return(flags.Set(FlagIndex.Carry, !flags.IsSet(flagIndex)));
}
