-// For asynchronous computer move search
-onmessage = function(e)
-{
- switch (e.data[0])
- {
- case "scripts":
- self.importScripts(
- '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js',
- '/javascripts/base_rules.js',
- '/javascripts/utils/array.js',
- '/javascripts/variants/' + e.data[1] + '.js');
- self.V = eval(e.data[1] + "Rules");
- break;
- case "init":
- const fen = e.data[1];
- self.vr = new VariantRules(fen);
- break;
- case "newmove":
- self.vr.play(e.data[1]);
- break;
- case "askmove":
- const compMove = self.vr.getComputerMove();
- postMessage(compMove);
- break;
- }
-}
+// Logic to play a computer move in a web worker
+onmessage = async function(e) {
+ switch (e.data[0]) {
+ case "scripts": {
+ await import("@/variants/" + e.data[1] + ".js")
+ .then((vModule) => { self.V = vModule[e.data[1] + "Rules"]; });
+ break;
+ }
+ case "init": {
+ const fen = e.data[1];
+ self.vr = new self.V(fen);
+ break;
+ }
+ case "newmove":
+ let move = e.data[1];
+ // Caution: could be a multi-move
+ if (!Array.isArray(move))
+ move = [move];
+ move.forEach(m => self.vr.play(m));
+ break;
+ case "askmove": {
+ const compMove = self.vr.getComputerMove();
+ postMessage(compMove);
+ break;
+ }
+ }
+};