public void RecordLastSucceedStep(MoveStep stepInfo)
{
if (stepInfo == null)
{
throw new ArgumentNullException("stepInfo");
}
this.lastMoveStep = stepInfo;
}
public bool TryRevertStep(out MoveStep stepInfo)
{
stepInfo = null;
var lastStep = this.lastMoveStep;
if (lastStep == null)
{
return(false);
}
stepInfo = lastStep;
this.lastMoveStep = null;
return(true);
}
public void Reset()
{
this.lastMoveStep = null;
}