💡📝H. G. Muller wrote on Sat, Nov 27, 2021 01:17 PM UTC:
What is the difference between the play-test applet and the diagram?
The Play-Test Applet is an interface page for altering the Diagram it contains, and use it in-place, or display its HTML source code so that you could post the Diagram elsewhere. In that other location it would still be an Interactive Diagram, but you can no longer change the rules by which it plays. (Unless you edit the page, of course.) In principle you could also have typed the source code of that Diagram by hand, if you knew the definition format. There is a seperate article here over Interactive Diagrams, which contains a 'Design Wizard' that also can generate source code for you. This is a bit less user-friendly (you have to complete a large form for specifying all kinds of parameters, also for defining graphics), but gives you more control over the generated Diagram than the Play-Test Applet.
Of course you can also use a hybrid method for creating a Diagram: use the Play-Test Applet to design a Diagram that is as close as possible you can get to what you want within the Applet's limitations, (e.g. everything except the promotion rules), and then edit the source code to add what it was missing. You can then post this modified source code on a page of your own (or in a comment). Or you can even paste it back into the Play-Test Applet, to test it there.
To implement Shogi-style promotions you would have to redefine the parameters maxPromote (giving the number of promotable pieces) and promoOffset (how much they shift up in the piece table when promoting), and reorder the piece definitions such that they are in the right place in the table to cause the correct promotions.
The Play-Test Applet is an interface page for altering the Diagram it contains, and use it in-place, or display its HTML source code so that you could post the Diagram elsewhere. In that other location it would still be an Interactive Diagram, but you can no longer change the rules by which it plays. (Unless you edit the page, of course.) In principle you could also have typed the source code of that Diagram by hand, if you knew the definition format. There is a seperate article here over Interactive Diagrams, which contains a 'Design Wizard' that also can generate source code for you. This is a bit less user-friendly (you have to complete a large form for specifying all kinds of parameters, also for defining graphics), but gives you more control over the generated Diagram than the Play-Test Applet.
Of course you can also use a hybrid method for creating a Diagram: use the Play-Test Applet to design a Diagram that is as close as possible you can get to what you want within the Applet's limitations, (e.g. everything except the promotion rules), and then edit the source code to add what it was missing. You can then post this modified source code on a page of your own (or in a comment). Or you can even paste it back into the Play-Test Applet, to test it there.
To implement Shogi-style promotions you would have to redefine the parameters maxPromote (giving the number of promotable pieces) and promoOffset (how much they shift up in the piece table when promoting), and reorder the piece definitions such that they are in the right place in the table to cause the correct promotions.