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}");
}
}
public override InstructionResult Execute(IntcodeComputer computer, long[] buffer)
{
try
{
bool equal = Parameters[0].GetValue(ref computer) == Parameters[1].GetValue(ref computer);
var dest = Parameters[2].GetPosition(ref computer);
computer.CurrentMemoryState()[dest] = equal ? 1 : 0;
return(new InstructionResult(true, "EqualsInstruction passed."));
}
catch (Exception e)
{
return(new InstructionResult(false, e.Message));
}
}
public override InstructionResult Execute(IntcodeComputer computer, long[] buffer)
{
try
{
var memory = computer.CurrentMemoryState();
if (Parameters[0].GetValue(ref computer) == 0)
{
_next = (int)Parameters[1].GetValue(ref computer);
}
return(new InstructionResult(true, "JumpIfFalseInstruction passed."));
}
catch (Exception e)
{
return(new InstructionResult(false, e.Message));
}
}
