client/src/playCompMove.js

   1 // Logic to play a computer move in a web worker
   2 onmessage = async function(e) {
   3   switch (e.data[0]) {
   4     case "scripts": {
   5       const vModule = await import("@/variants/" + e.data[1] + ".js");
   6       self.V = vModule.VariantRules;
   7       break;
   8     }
   9     case "init": {
  10       const fen = e.data[1];
  11       self.vr = new self.V(fen);
  12       break;
  13     }
  14     case "newmove":
  15       let move = e.data[1];
  16       // Caution: could be a multi-move
  17       if (!Array.isArray(move))
  18         move = [move];
  19       move.forEach(m => self.vr.play(m));
  20       break;
  21     case "askmove": {
  22       const compMove = self.vr.getComputerMove();
  23       postMessage(compMove);
  24       break;
  25     }
  26   }
  27 };