Minor fix.

frontend/assets/resources/prefabs/GameRule.prefab

@@ -2895,7 +2895,17 @@
       "__id__": 73
     },
     "mapNode": null,
-    "characterSelectCells": [],
+    "characterSelectCells": [
+      {
+        "__id__": 6
+      },
+      {
+        "__id__": 26
+      },
+      {
+        "__id__": 46
+      }
+    ],
     "_id": ""
   },
   {

frontend/assets/scripts/GameRule.js

@@ -25,13 +25,13 @@ cc.Class({
     this.modeButton.clickEvents.push(modeBtnClickEventHandler);
   },
 
-  onSpeciesSelected(val) {
+  onSpeciesSelected(evt, val) {
     for (let cell of this.characterSelectCells) {
       const comp = cell.getComponent("CharacterSelectCell");
-      if (cell.speciesId != val) {
-        cell.chosenFlag.active = false;
+      if (comp.speciesId != val) {
+        comp.chosenFlag.node.active = false;
       } else {
-        cell.chosenFlag.active = true;
+        comp.chosenFlag.node.active = true;
       }
     }
   },