On Mon, Nov 27, 2017 at 9:01 PM, <namenobodywa...@gmail.com> wrote: > On Sunday, November 26, 2017 at 7:09:25 PM UTC-8, Michael Torrie wrote: > >> So you are using this Infinity class as a sentinel value of some kind? >> Representing game state? There may be an easier way than a full on >> custom type. Sometimes just a sentinel object is sufficient. Or an >> enumeration. > > they're not sentinels; they're the maximum and minimum of the extended real > numbers; the point is that, no matter how boards are evaluated (which is, of > course, subject to change), a won game is always the most valuable and a lost > game is always the least valuable; ordinary real numbers could be used for > the purpose, but in that case i would have to figure out the maximum and > minimum of the heuristic values the script assigns and then add/subtract one > (for example) to get the value of a won/lost game >
Or you could use the floating-point values for positive and negative infinity, which already compare as you need with all integers and floats. But that's up to you. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
