/// <summary>
/// gives the output of the connected gate
/// </summary>
/// <returns></returns>
public override int[] calculate()
{
if (InputPorts.Count > 1)
{
throw new Exception("output has too many inputs!");
}
if (!InputPorts.ContainsKey(0))
{
throw new Exception("output is missing input 0!");
}
Tuple <CircuitElement, int> source = InputPorts[0];
int[] childVals = source.Item1.calculate();
if (childVals == null)
{
return(null);
}
outputValues[0] = childVals[source.Item2];
return(outputValues);
}
