AI query
Blitz3D Forums/Blitz3D Programming/AI query
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| I have been writing a word game for some time now, a passing resemblance to scrabble, but with enough differences (i hope) to not cause problems. I am now at the stage to start writing the computer opponent AI and I am looking for thoughts from others.:) I have the words set in various lengths 2 to 15 atm. To arrange difficulty levels I am considering setting a max number of words each level can have. Would that work you think? For the AI aspect I am trying to break down my actions into basic steps and look at programming each aspect. eg: look at letters I have and try to make words also look at making words that I am missing say 1, 2 or 3 letters from. look for places that words can fit and calculate the best place for word. Some basic ideas I have. |
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| The first step is defie a dictionary for your AI to choose words from. depending on your game, it may be bet to split the dictionary up into words of a particular length - i.e. a separate file for 3 letter words, a seperate file for 4 letter words etc. Search for LONGEST words first, then down to SHORTEST - this may take longer to 'think', but allows you to implement AI difficulty levels and ensures the AI chooses the best score possible! Here's a PSEUDOCODE example of how I would approach the scrabble AI:
Search the grid
If a letter is encountered Store that letter in A$
Check the surrounding grid-squares for blank space
If Blank space, count along in that row until next letter apparent.
Add that letter to B$ and it's distance as dist% spaces from the A$ letter.
Check dictionary for words INSTRING$("A$....B$")
If none found, search for words beginning with A$ of less than space% length. If found apply temporary score to longest available.
If there IS an INSTRING$("A$....B$") word, extend the check for A$...B$...C$ etc etc.
apply a temporary score when found
Continue searching grid.
It's gonna be complex and the above will need a lot more detail obviously with dealing with things like Letter Values. Hope this helps, it's easier to think about than it is to try and explain heh ;) |
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| and ensures the AI chooses the best score possible! I wouldn't use the word ensures, more like strengthens the odds.The longest word (in Scrabble at least) isn't necessarily the highest scorer. |
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| thanks for your comments, appreciate them |
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