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/Material.ts

@@ -0,0 +1,77 @@
+'use strict';
+import { ImporterBase } from "../common/base";
+
+export const MATERIAL = {
+    "__type__": "cc.Material",
+    "_name": "",
+    "_objFlags": 0,
+    "_native": "",
+    "_effectAsset": null,
+    "_techIdx": 0,
+    "_defines": [],
+    "_states": [],
+    "_props": [],
+};
+
+export class Material {
+
+    static create() {
+        return JSON.parse(JSON.stringify(MATERIAL));
+    }
+
+    static async migrate(json2D: any) {
+        const source = JSON.parse(JSON.stringify(MATERIAL));
+        for (const key in json2D) {
+            const value = json2D[key];
+            if (key === '__type__' || value === undefined || value === null) { continue; }
+            if (key === '_effectAsset') {
+                source._effectAsset = {
+                    "__uuid__": await ImporterBase.getUuid(json2D._effectAsset.__uuid__),
+                };
+            }
+            else if (key === '_techniqueData') {
+                for (const key in json2D._techniqueData) {
+                    const data = json2D._techniqueData[key];
+                    if (data.defines) {
+                        const defines: any = {};
+                        for (let defineKey in data.defines) {
+                            let va = data.defines[defineKey];
+                            if (defineKey === 'USE_DIFFUSE_TEXTURE') {
+                                defineKey = 'USE_TEXTURE';
+                            }
+                            defines[defineKey] = va;
+                        }
+                        source._defines.push(defines);
+                    }
+                    if (data.props) {
+                        const props: any = {};
+                        for (let propKey in data.props) {
+                            const value = data.props[propKey];
+                            if (propKey === 'mainTexture' || propKey === 'texture' || propKey === 'diffuseTexture') {
+                                // 由于 texture 是关键字，所有都改成 mainTexture
+                                propKey = 'mainTexture';
+                                props[propKey] = {
+                                    __uuid__: await ImporterBase.getUuid(value.__uuid__, 'texture'),
+                                };
+                            }
+                            else {
+                                props[propKey] = value;
+                            }
+                        }
+                        data.props && source._props.push(props);
+                    }
+                }
+            }
+            else {
+                source[key] = value;
+            }
+        }
+        return source;
+    }
+
+    static async apply(index: number, json2D: any, json3D: any) {
+        const source = await Material.migrate(json2D[index]);
+        json3D.splice(index, 1, source);
+        return source;
+    }
+}