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🕸Fergus Duniho wrote on Thu, Aug 6, 2020 06:10 PM UTC in reply to H. G. Muller from 06:09 AM:

That is ugly. For a Chu-Shogi Lion there would typically be 8 moves for the second leg, next to the pass option, and the user would have to interpret all the square coordinates to see which of these he wants.

This gave me an idea, which I just implemented. When there is a list of legal moves, it gets used to fill an HTML5 datalist for the text input field used for entering moves. In addition to this, it will include extra legal moves entered as text in the $extralegal system variable. This should include an array of legal moves written as you would enter them, and it may include multi-part moves with parts separated by semicolons. I have not actually tested the use of $extralegal yet, but I have tested that things still work when $extralegal is empty.

This replaces the usual autocomplete functionality with a drop down list of all legal moves. If someone partially enters a legal move, he can get its legal completions. I tried it on both Firefox and Vivaldi. In Vivaldi, it adds a down arrow to the field when you hover the mouse over it, and clicking on that arrow will show the legal moves. Firefox lacks this visual indicator, but if you double click on the field, it will display the list of legal moves.


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