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/dist/convertor/pac.js

@@ -0,0 +1,54 @@
+'use strict';
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AutoAtlasImporter = void 0;
+const base_1 = require("../common/base");
+// 2d 自动图集已有的数据
+const KEYS = [
+    'maxWidth',
+    'maxHeight',
+    'padding',
+    'allowRotation',
+    'forceSquared',
+    'powerOfTwo',
+    'algorithm',
+    'format',
+    'quality',
+    'contourBleed',
+    'paddingBleed',
+    'filterUnused',
+];
+class AutoAtlasImporter extends base_1.ImporterBase {
+    constructor() {
+        super(...arguments);
+        this.type = 'pac';
+    }
+    import() {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!this._2dMeta) {
+                return true;
+            }
+            this._3dMeta.ver = '1.0.5';
+            this._3dMeta.importer = 'auto-atlas';
+            for (const key in this._2dMeta) {
+                if (KEYS.includes(key)) {
+                    this._3dMeta.userData[key] = this._2dMeta[key];
+                }
+            }
+            const compressSettings = yield this.migratePlatformSettings(this._2dMeta.platformSettings);
+            if (compressSettings) {
+                this._3dMeta.userData.compressSettings = compressSettings;
+            }
+            return true;
+        });
+    }
+}
+exports.AutoAtlasImporter = AutoAtlasImporter;