public void CommandUpUpdatesAim()
{
var sub = new Submarine();
sub.Execute(new SubmarineCommand(Direction.Down, 1));
Assert.That(sub.Horizontal, Is.EqualTo(0));
Assert.That(sub.Aim, Is.EqualTo(1));
}
public void CommandForwardUpdatesHorizontalLocation()
{
var sub = new Submarine();
sub.Execute(new SubmarineCommand(Direction.Forward, 1));
Assert.That(sub.Horizontal, Is.EqualTo(1));
Assert.That(sub.Depth, Is.EqualTo(0));
}
public void CommandForwardUpdatesHorizontalLocationAndDepthWhenAimIsNotZero()
{
var sub = new Submarine {
Aim = 1
};
sub.Execute(new SubmarineCommand(Direction.Forward, 1));
Assert.That(sub.Horizontal, Is.EqualTo(1));
Assert.That(sub.Depth, Is.EqualTo(1));
}
public async Task <int> Part1()
{
var commands = await _inputFetcher.GetTransformedSplitInputForDay(2, SubmarineCommandParser.Parse);
var sub = new Submarine();
foreach (var command in commands)
{
sub.Execute(command);
}
return(sub.Horizontal * sub.Depth);
}
