public static ReactionItem Parse(ReadOnlySpan <char> str)
{
var idx = str.IndexOf(' ');
var quantity = long.Parse(str.Slice(0, idx));
var name = new string(str.Slice(idx + 1));
var chemical = Chemical.Create(name);
return(new ReactionItem(chemical, quantity));
}
public static Chemical Create(string name)
{
if (_byName.ContainsKey(name))
{
return(_byName[name]);
}
else
{
return(_byName[name] = new Chemical(name));
}
}
public ReactionItem(Chemical chemical, long quantity)
{
Chemical = chemical;
Quantity = quantity;
}
internal ReactionItem this[Chemical chem]
{
get => _chems[chem.Id];
