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/level-map-editor/dist/scene.js

@@ -0,0 +1,86 @@
+'use strict';
+
+const grid = require('./grid-math');
+
+function findNodeByUuid(root, uuid) {
+    if (!root || !uuid) return null;
+    if (root.uuid === uuid) return root;
+    for (const ch of root.children) {
+        const hit = findNodeByUuid(ch, uuid);
+        if (hit) return hit;
+    }
+    return null;
+}
+
+function resolveLayer(node) {
+    let cur = node;
+    while (cur) {
+        if (cur.name === 'Ground') return 'ground';
+        if (cur.name === 'Border') return 'border';
+        cur = cur.parent;
+    }
+    const m = node.name && node.name.match(/^([gb])_(-?\d+)_(-?\d+)$/);
+    if (m) return m[1] === 'g' ? 'ground' : 'border';
+    return null;
+}
+
+exports.methods = {
+    /**
+     * 将指定 uuid 节点吸附到等距格子中心（场景内拖动后调用）
+     */
+    snapNodeByUuid(uuid) {
+        const { director, Vec3 } = require('cc');
+        const scene = director.getScene();
+        if (!scene) return { ok: false, reason: 'no scene' };
+        const node = findNodeByUuid(scene, uuid);
+        if (!node) return { ok: false, reason: 'node not found' };
+        const layer = resolveLayer(node);
+        if (!layer) return { ok: false, reason: 'not under Ground/Border' };
+
+        const p = node.position;
+        const c = grid.worldCenterToCellXY(p.x, p.y);
+        const w = grid.cellCenterWorldXY(c.x, c.y);
+        node.setPosition(new Vec3(w.x, w.y, p.z));
+
+        const prefix = layer === 'ground' ? 'g' : 'b';
+        const expected = `${prefix}_${c.x}_${c.y}`;
+        if (/^[gb]_-?\d+_-?\d+$/.test(node.name) || node.name.startsWith(prefix)) {
+            node.name = expected;
+        }
+        return { ok: true, cell: c, key: grid.cellKey(c.x, c.y), layer };
+    },
+
+    /** 批量吸附（参数为 uuid 数组） */
+    snapNodes(uuids) {
+        const list = Array.isArray(uuids) ? uuids : [uuids];
+        const results = [];
+        for (const id of list) {
+            results.push(exports.methods.snapNodeByUuid(id));
+        }
+        return results;
+    },
+
+    /** 在 Level 根节点挂载 GridSnapHelper（编辑器场景内持续吸附） */
+    attachHelperOnSelection(uuid) {
+        const { director } = require('cc');
+        const scene = director.getScene();
+        if (!scene) return { ok: false, reason: 'no scene' };
+        let node = findNodeByUuid(scene, uuid);
+        if (!node) return { ok: false, reason: 'node not found' };
+        let root = node;
+        while (root.parent && !/^Level\d+$/.test(root.name)) {
+            root = root.parent;
+        }
+        if (!/^Level\d+$/.test(root.name)) {
+            return { ok: false, reason: 'not a Level prefab node' };
+        }
+        let comp = root.getComponent('GridSnapHelper');
+        if (!comp) {
+            comp = root.addComponent('GridSnapHelper');
+        }
+        return { ok: true, level: root.name, hasHelper: !!comp };
+    },
+};
+
+exports.load = function () {};
+exports.unload = function () {};