add loadLanguage functions for updating language

game/static/game/js/blocklyControl.js

@@ -52,6 +52,12 @@ ocargo.BlocklyControl.prototype.prepare = function (blocks) {
   }
 };
 
+ocargo.BlocklyControl.prototype.updateBlockLanguage = function (language_code) {
+  loadLanguage("/static/game/js/blockly/msg/js/", language_code, function() {
+    reloadWorkspace(Blockly.mainWorkspace);
+  });
+};
+
 ocargo.BlocklyControl.prototype.redrawBlockly = function () {
   Blockly.svgResize(Blockly.mainWorkspace);
 };

game/static/game/js/game.js

@@ -1388,7 +1388,7 @@ function setMutedCookie(mute) {
 }
 
 function gameUpdateBlockLanguage(language_code) {
-  console.log(language_code);
+  ocargo.blocklyControl.updateBlockLanguage(language_code)
 }
 
 $(document).ready(function () {

game/static/game/js/loadLanguages.js

@@ -0,0 +1,21 @@
+function loadLanguage(path, langStr, callback) {
+  var xobj = new XMLHttpRequest();
+  xobj.overrideMimeType("application/javascript");
+  xobj.open('GET', path + langStr + '.js', true);
+  xobj.onreadystatechange = function () {
+    if (xobj.readyState == 4 && xobj.status == "200") {
+      eval(xobj.responseText);
+      callback();
+    } else if (xobj.status == "404") {
+      loadLanguage(path, "en", callback);
+    }
+  };
+  xobj.send(null);
+};
+
+function reloadWorkspace(workspace) {
+  var blocklyDom = Blockly.Xml.workspaceToDom(workspace);
+  workspace.clear();
+  Blockly.Xml.domToWorkspace(blocklyDom, workspace);
+  workspace.updateToolbox(BLOCKLY_XML);
+};