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Yeah. I was happy with this.
Nice points! Actually I think a `` `DistanceMatrix`` would suffice instead of a fully qualified name. It shouldn't be such a breaking change to get used to adding a heading `.
Check `Pivot`
Very nice. You could use key handlers. Perhaps one could also handle the winning and losing cases. You made me google this game and waste a lot of minutes :P. The version I googled didn't allow you to slide to a side where no tiles would slide, I am...
When using the Haar wavelet and only one detail level, isn't this equivalent to finding the crossings of the (upsampled) first differences, which should be efficient too?
@Marteen, agree, I had misunderstood what you meant. @Shenghui, glad we helped. Sometimes while trying to explain a doubt clearly to others, one finds the answer. It happens to me all the time and I think it would have been your case here. If I...