Attempt to clarify installation instructions a little

[vchess.git] / client / src / playCompMove.js

diff --git a/client/src/playCompMove.js b/client/src/playCompMove.js
index 062eae3..d83148f 100644 (file)
--- a/client/src/playCompMove.js
+++ b/client/src/playCompMove.js
@@ -1,26 +1,27 @@
-// TODO: https://github.com/webpack-contrib/worker-loader
-// https://stackoverflow.com/questions/48713072/how-to-get-js-function-into-webworker-via-importscripts
-// For asynchronous computer move search
-
-//self.addEventListener('message', (e) =>
-onmessage = async function(e)
-{
-  switch (e.data[0])
-  {
-    case "scripts":
-      const vModule = await import("@/variants/" + e.data[1] + ".js");
-      self.V = vModule.VariantRules;
+// 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":
+    }
+    case "init": {
       const fen = e.data[1];
       self.vr = new self.V(fen);
       break;
+    }
     case "newmove":
-      self.vr.play(e.data[1]);
+      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":
+    case "askmove": {
       const compMove = self.vr.getComputerMove();
       postMessage(compMove);
       break;
+    }
   }
-}
+};