Complete Cocos Creator port with level bundles, themes, and tooling.

Adds level prefabs, theme assets, audio, extensions, and deployment scripts for the Unity WebGL migration.

Co-authored-by: Cursor <cursoragent@cursor.com>

extensions/plugin-import-2x/creator/components/EditBox.ts

@@ -0,0 +1,49 @@
+'use strict';
+export const EDITBOX = {
+    "__type__": "cc.EditBox",
+    "_name": "",
+    "_objFlags": 0,
+    "node": null,
+    "_enabled": true,
+    "__prefab": null,
+    "editingDidBegan": [],
+    "textChanged": [],
+    "editingDidEnded": [],
+    "editingReturn": [],
+    "_textLabel": null,
+    "_placeholderLabel": null,
+    "_returnType": 0,
+    "_useOriginalSize": true,
+    "_string": "",
+    "_tabIndex": 0,
+    "_backgroundImage": null,
+    "_inputFlag": 5,
+    "_inputMode": 0,
+    "_maxLength": 20,
+};
+
+export class EditBox {
+
+    static create() {
+        return JSON.parse(JSON.stringify(EDITBOX));
+    }
+
+    static async migrate(json2D: any) {
+        const source = JSON.parse(JSON.stringify(EDITBOX));
+        for (let key in json2D) {
+            const value = json2D[key];
+            if (key === '__type__' || value === undefined || value === null) { continue; }
+            if (key.startsWith('_N$')) {
+                key = key.replace(/N\$/, '');
+            }
+            source[key] = value;
+        }
+        return source;
+    }
+
+    static async apply(index: number, json2D: any, json3D: any) {
+        const source = await EditBox.migrate(json2D[index]);
+        json3D.splice(index, 1, source);
+        return source;
+    }
+}