public long GetPosition(ref IntcodeComputer computer)
{
if (Adress > computer.CurrentMemoryState().Length)
{
computer.ResizeMemory(Adress);
}
if (RelativeBase + computer.CurrentMemoryState()[Adress] > computer.CurrentMemoryState().Length)
{
computer.ResizeMemory((int)(RelativeBase + computer.CurrentMemoryState()[Adress]));
}
if (Mode == ParameterMode.Position)
{
var pos = computer.CurrentMemoryState()[Adress];
if (pos >= computer.CurrentMemoryState().Length)
{
computer.ResizeMemory((int)pos);
}
return(pos);
}
else if (Mode == ParameterMode.Relative)
{
var pos = RelativeBase + computer.CurrentMemoryState()[Adress];
if (pos >= computer.CurrentMemoryState().Length)
{
computer.ResizeMemory((int)pos);
}
return(pos);
}
else
{
throw new NotImplementedException($"Parameter Mode must be {ParameterMode.Position}");
}
}
public long GetValue(ref IntcodeComputer computer)
{
if (Adress > computer.CurrentMemoryState().Length)
{
computer.ResizeMemory(Adress);
}
if (Mode == ParameterMode.Immediate)
{
return(computer.CurrentMemoryState()[Adress]);
}
else if (Mode == ParameterMode.Position || Mode == ParameterMode.Relative)
{
var adress = GetPosition(ref computer);
return(computer.CurrentMemoryState()[adress]);
}
else
{
throw new NotImplementedException($"Unexpected Parameter Mode: {Mode}");
}
}
