fea: 添加地图管理

js/main.js

@@ -169,7 +169,13 @@ function nextLevel() {
 }
 function toLevels() { G.state = 'menu'; UI.show('scr-levels'); Touch.hide(); }
 function toTitle() { G.state = 'menu'; UI.show('scr-title'); Touch.hide(); }
-function toEditor() { G.state = 'editor'; UI.show('scr-editor'); Touch.hide(); Editor.open(); }
+function toEditor() {
+  G.state = 'editor';
+  UI.show('scr-editor');
+  Touch.hide();
+  // 试玩后返回：保留正在编辑的地图；从未进过编辑器时才新建
+  if (Editor.faces) Editor.show(); else Editor.open();
+}
 function pause() {
   if (G.state !== 'playing') return;
   G.state = 'paused';
@@ -289,6 +295,7 @@ Audio2.enabled = Save.data.audio !== false;
 UI.init({
   play: (lv) => { G.fromEditor = false; startLevel(lv, lv.builtin === false ? -1 : (lv.index ?? -1)); },
   levels: toLevels,
+  manage: () => UI.setManage(!UI.manage),
   help: () => UI.show('scr-help'),
   editor: toEditor,
   back: toTitle,