public override CommandResult ExecuteCommand(PositionState positionState, Tracker tracker)
{
if (!TryToConsumeBattery(positionState))
{
return(new CommandResult(false, true));
}
var previousCoordinateX = positionState.X;
var previousCoordinateY = positionState.Y;
var facing = positionState.Facing;
if (facing == Facing.N)
{
positionState.Y += StepCount;
}
if (facing == Facing.E)
{
positionState.X -= StepCount;
}
if (facing == Facing.S)
{
positionState.Y -= StepCount;
}
if (facing == Facing.W)
{
positionState.X += StepCount;
}
if (positionState.XCoordinateInBorder() && positionState.YCoordinateInBorder())
{
if (positionState.PlaceIsAvailable())
{
tracker.TryAddingToVisited(positionState.X, positionState.Y);
return(new CommandResult(true));
}
}
positionState.X = previousCoordinateX;
positionState.Y = previousCoordinateY;
return(new CommandResult(false));
}
