diff --git a/_docs/api.md b/_docs/api.md
index e7c3f2e2..a78eead0 100644
--- a/_docs/api.md
+++ b/_docs/api.md
@@ -1486,13 +1486,12 @@ y: 起点纵坐标，不填视为主角当前的
 direction: 移动的方向，不填视为主角面对的方向
 floorId: 地图id，不填视为当前地图
 
-drawThumbnail: fn(floorId?: string, blocks?: [block], options?: ?, toDraw?: string|CanvasRenderingContext2D|?)
+drawThumbnail: fn(floorId?: string, blocks?: [block], options?: ?)
 绘制缩略图
 例如：core.drawThumbnail(); // 绘制当前地图的缩略图
 floorId: 地图id，不填视为当前地图
 blocks: 一般不需要
 options: 额外的绘制项，可选。可以增绘主角位置和朝向、采用不同于游戏中的主角行走图、增绘显伤、提供flags用于存读档
-toDraw: 要绘制到的画布名或画布的ctx或还有其他信息，如起绘坐标、绘制大小、是否绘制全图、截取中心
 
 hideBlockByIndex: fn(index?: number, floorId?: string)
 根据图块的索引来隐藏图块
@@ -1846,6 +1845,10 @@ filter: 过滤器，可选，表示data为数组或对象时拷贝哪些项或
 recursion: 过滤器是否递归，可选。true表示过滤器也被递归
 返回值：拷贝的结果，注意函数将原样返回
 
+cloneArray: fn(data?: [number]|[[number]]) -> [number]|[[number]]
+深拷贝一个1D或2D数组对象
+例如：core.cloneArray(core.status.thisMap.map)
+
 setLocalForage: fn(key: string, value?: ?, successCallback?: fn(), errorCallback?: fn())
 往数据库写入一段数据
 
diff --git a/_server/CodeMirror/defs.js b/_server/CodeMirror/defs.js
index 89942a05..88d75062 100644
--- a/_server/CodeMirror/defs.js
+++ b/_server/CodeMirror/defs.js
@@ -2725,6 +2725,10 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
           "!doc": "深拷贝一个对象(函数将原样返回)<br/>例如：core.clone(core.status.hero, (name, value) => (name == 'items' || typeof value == 'number'), false); // 深拷贝主角的属性和道具<br/>data: 待拷贝对象<br/>filter: 过滤器，可选，表示data为数组或对象时拷贝哪些项或属性，true表示拷贝<br/>recursion: 过滤器是否递归，可选。true表示过滤器也被递归<br/>返回值：拷贝的结果，注意函数将原样返回", 
           "!type": "fn(data?: ?, filter?: fn(name: string, value: ?) -> bool, recursion?: bool)"
         }, 
+        "cloneArray": {
+          "!doc": "深拷贝一个1D或2D数组对象<br/>例如：core.cloneArray(core.status.thisMap.map)", 
+          "!type": "fn(data?: [number]|[[number]]) -> [number]|[[number]]"
+        }, 
         "setLocalForage": {
           "!doc": "往数据库写入一段数据", 
           "!type": "fn(key: string, value?: ?, successCallback?: fn(), errorCallback?: fn())"
@@ -3275,8 +3279,8 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
           "!type": "fn(x?: number, y?: number, direction?: string, floorId?: string) -> bool"
         }, 
         "drawThumbnail": {
-          "!doc": "绘制缩略图<br/>例如：core.drawThumbnail(); // 绘制当前地图的缩略图<br/>floorId: 地图id，不填视为当前地图<br/>blocks: 一般不需要<br/>options: 额外的绘制项，可选。可以增绘主角位置和朝向、采用不同于游戏中的主角行走图、增绘显伤、提供flags用于存读档<br/>toDraw: 要绘制到的画布名或画布的ctx或还有其他信息，如起绘坐标、绘制大小、是否绘制全图、截取中心", 
-          "!type": "fn(floorId?: string, blocks?: [block], options?: ?, toDraw?: string|CanvasRenderingContext2D|?)"
+          "!doc": "绘制缩略图<br/>例如：core.drawThumbnail(); // 绘制当前地图的缩略图<br/>floorId: 地图id，不填视为当前地图<br/>blocks: 一般不需要<br/>options: 绘制信息，可选。可以增绘主角位置和朝向、采用不同于游戏中的主角行走图、增绘显伤、提供flags用于存读档，同时包含要绘制到的画布名或画布的ctx或还有其他信息，如起绘坐标、绘制大小、是否绘制全图、截取中心", 
+          "!type": "fn(floorId?: string, blocks?: [block], options?: ?)"
         }, 
         "hideBlockByIndex": {
           "!doc": "根据图块的索引来隐藏图块", 
diff --git a/_server/config.json b/_server/config.json
index dd05781d..6e271757 100644
--- a/_server/config.json
+++ b/_server/config.json
@@ -1 +1 @@
-{"lastUsed":[{"idnum":151,"id":"autotile1","images":"autotile","y":0,"recent":1593758059851,"frequent":7},{"idnum":213,"id":"zombie","images":"enemys","y":12,"recent":1593758008027,"frequent":2},{"idnum":211,"id":"skeletonCaptain","images":"enemys","y":10,"recent":1593758003830,"frequent":2},{"idnum":206,"id":"bigBat","images":"enemys","y":5,"recent":1593758000245,"frequent":1},{"idnum":209,"id":"skeleton","images":"enemys","y":8,"recent":1593757393597,"frequent":4},{"idnum":210,"id":"skeletonWarrior","images":"enemys","y":9,"recent":1593757252851,"frequent":2},{"idnum":205,"id":"bat","images":"enemys","y":4,"recent":1593757205645,"frequent":1},{"idnum":201,"id":"greenSlime","images":"enemys","y":0,"recent":1593757197512,"frequent":1}],"foldPerCol":50,"folded":false,"editorLastFloorId":"sample2","disableBlocklyReplace":false,"disableBlocklyExpandCompare":false,"shortcut":{"48":0,"49":0,"50":0,"51":0,"52":0,"53":0,"54":0,"55":0,"56":0,"57":0}}
\ No newline at end of file
+{"lastUsed":[{"idnum":45,"id":"book","images":"items","y":9,"recent":1593783767918,"frequent":1},{"idnum":151,"id":"autotile1","images":"autotile","y":0,"recent":1593758059851,"frequent":7},{"idnum":213,"id":"zombie","images":"enemys","y":12,"recent":1593758008027,"frequent":2},{"idnum":211,"id":"skeletonCaptain","images":"enemys","y":10,"recent":1593758003830,"frequent":2},{"idnum":206,"id":"bigBat","images":"enemys","y":5,"recent":1593758000245,"frequent":1},{"idnum":209,"id":"skeleton","images":"enemys","y":8,"recent":1593757393597,"frequent":4},{"idnum":210,"id":"skeletonWarrior","images":"enemys","y":9,"recent":1593757252851,"frequent":2},{"idnum":205,"id":"bat","images":"enemys","y":4,"recent":1593757205645,"frequent":1},{"idnum":201,"id":"greenSlime","images":"enemys","y":0,"recent":1593757197512,"frequent":1}],"foldPerCol":50,"folded":false,"editorLastFloorId":"sample2","disableBlocklyReplace":false,"disableBlocklyExpandCompare":false,"shortcut":{"48":0,"49":0,"50":0,"51":0,"52":0,"53":0,"54":0,"55":0,"56":0,"57":0},"viewportLoc":[0,0]}
\ No newline at end of file
diff --git a/_server/editor.js b/_server/editor.js
index 82d43b7d..86d2bb30 100644
--- a/_server/editor.js
+++ b/_server/editor.js
@@ -223,12 +223,17 @@ editor.prototype.init = function (callback) {
                     for (var one in canvases) {
                         canvases[one].width = canvases[one].height = core.__PIXELS__;
                     }
-                    core.resetGame(core.firstData.hero, null, core.firstData.floorId, core.clone(core.initStatus.maps));
-                    var lastFloorId = editor.config.get('editorLastFloorId', core.status.floorId);
-                    if (core.floorIds.indexOf(lastFloorId) < 0) lastFloorId = core.status.floorId;
-                    core.changeFloor(lastFloorId, null, {x: 0, y: 0, direction:"up"}, null, function () {
-                        afterCoreReset();
-                    }, true);
+                    core.resetGame(core.firstData.hero, null, core.firstData.floorId, core.cloneArray(core.initStatus.maps));
+                    var floorId = editor.config.get('editorLastFloorId', core.status.floorId);
+                    if (core.floorIds.indexOf(floorId) < 0) floorId = core.status.floorId;
+
+                    core.status.floorId = floorId;
+                    core.resizeMap(floorId);
+                    core.clearMap('all');
+                    core.generateGroundPattern(floorId);
+                    core.extractBlocks(floorId);
+                    core.status.thisMap = core.status.maps[floorId];
+                    afterCoreReset();
                 });
             }
         
@@ -238,11 +243,13 @@ editor.prototype.init = function (callback) {
                 editor.drawInitData(core.icons.icons); // 初始化绘图
         
                 editor.game.fetchMapFromCore();
+                editor.pos = {x: 0, y: 0};
                 editor.updateMap();
                 editor.buildMark();
+                var viewportLoc = editor.config.get('viewportLoc', []);
+                editor.setViewport(viewportLoc[0] || 0, viewportLoc[1] || 0);
                 editor.drawEventBlock();
-                
-                editor.pos = {x: 0, y: 0};
+
                 editor.mode.loc();
                 editor.info = editor.ids[editor.indexs[201]];
                 editor.mode.enemyitem();
@@ -334,20 +341,26 @@ editor.prototype.changeFloor = function (floorId, callback) {
     editor.uivalues.preMapData = [];
     editor.uivalues.postMapData = [];
     editor.uifunctions._extraEvent_bindSpecialDoor_doAction(true);
-    core.changeFloor(floorId, null, {"x": 0, "y": 0, "direction": "up"}, null, function () {
-        editor.game.fetchMapFromCore();
-        editor.updateMap();
-        editor_mode.floor();
-        editor.drawEventBlock();
 
-        editor.viewportLoc = editor.viewportLoc || {};
-        var loc = editor.viewportLoc[floorId] || [], x = loc[0] || 0, y = loc[1] || 0;
-        editor.setViewport(x, y);
-        editor.uifunctions.unhighlightSaveFloorButton();
+    core.status.floorId = floorId;
+    core.resizeMap(floorId);
+    core.clearMap('all');
+    core.generateGroundPattern(floorId);
+    core.extractBlocks(floorId);
+    core.status.thisMap = core.status.maps[floorId];
 
-        editor.config.set('editorLastFloorId', floorId, function() {
-            if (callback) callback();
-        });  
+    editor.game.fetchMapFromCore();
+    editor.updateMap();
+    editor_mode.floor();
+    editor.drawEventBlock();
+
+    editor.viewportLoc = editor.viewportLoc || {};
+    var loc = editor.viewportLoc[floorId] || [], x = loc[0] || 0, y = loc[1] || 0;
+    editor.setViewport(x, y);
+    editor.uifunctions.unhighlightSaveFloorButton();
+
+    editor.config.set('editorLastFloorId', floorId, function() {
+        if (callback) callback();
     });
 }
 
@@ -444,8 +457,7 @@ editor.prototype._updateMap_bigmap = function () {
     bm.clearRect(0, 0, core.__PIXELS__, core.__PIXELS__);
     bm.fillStyle = '#000000';
     bm.fillRect(0, 0, core.__PIXELS__, core.__PIXELS__);
-    core.drawThumbnail(editor.currentFloorId, core.status.thisMap.blocks, null, 
-        {ctx: bm, all: true});
+    core.drawThumbnail(editor.currentFloorId, core.status.thisMap.blocks, {ctx: bm, all: true});
     var width = editor.currentFloorData.width;
     var height = editor.currentFloorData.height;
     editor.uivalues.bigmapInfo.top = core.__PIXELS__ * Math.max(0, (1 - height / width) / 2);
@@ -572,6 +584,7 @@ editor.prototype.setViewport=function (x, y) {
     editor.viewportLoc = editor.viewportLoc || {};
     editor.viewportLoc[editor.currentFloorId] = [core.bigmap.offsetX, core.bigmap.offsetY];
     core.control.updateViewport();
+    editor.config.set('viewportLoc', editor.viewportLoc[editor.currentFloorId]);
     editor.buildMark();
     editor.drawPosSelection();
 }
diff --git a/_server/editor_ui.js b/_server/editor_ui.js
index 12ae8e41..ad2f6582 100644
--- a/_server/editor_ui.js
+++ b/_server/editor_ui.js
@@ -375,7 +375,7 @@ editor_ui_wrapper = function (editor) {
         // 绘制UI
         var background = uievent.elements.selectBackground.value;
         if (background == 'thumbnail') {
-            core.drawThumbnail(editor.currentFloorId, null, {}, 'uievent');
+            core.drawThumbnail(editor.currentFloorId, null, {ctx: 'uievent'});
         }
         else {
             core.fillRect('uievent', 0, 0, core.__PIXELS__, core.__PIXELS__, background);
@@ -482,11 +482,10 @@ editor_ui_wrapper = function (editor) {
         if (redraw) {
             core.setAlpha('uievent', 1);
             core.clearMap('uievent');
-            core.drawThumbnail(uievent.values.floorId, null, null,
-                {
-                    ctx: 'uievent', centerX: uievent.values.left + core.__HALF_SIZE__,
-                    centerY: uievent.values.top + core.__HALF_SIZE__, all: uievent.values.bigmap
-                });
+            core.drawThumbnail(uievent.values.floorId, null, {
+                ctx: 'uievent', centerX: uievent.values.left + core.__HALF_SIZE__,
+                centerY: uievent.values.top + core.__HALF_SIZE__, all: uievent.values.bigmap
+            });
             uievent.values.multipoints = uievent.values.multipoints || [];
             core.setTextAlign('uievent', 'right');
             for (var i = 0; i < uievent.values.multipoints.length; ++i) {
@@ -857,7 +856,7 @@ editor_ui_wrapper = function (editor) {
             var canvas = document.createElement('canvas');
             canvas.width = canvas.height = core.__PIXELS__;
             canvas.style.position = 'absolute';
-            core.drawThumbnail(editor.currentFloorId, null, {}, canvas.getContext('2d'));
+            core.drawThumbnail(editor.currentFloorId, null, {ctx: canvas.getContext('2d')});
             dom.appendChild(canvas);
             var canvas2 = document.createElement('canvas');
             canvas2.style.position = 'absolute';
diff --git a/libs/actions.js b/libs/actions.js
index 3ba55a3e..3b9a4923 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -1211,11 +1211,11 @@ actions.prototype._clickViewMaps = function (x, y) {
         return;
     }
 
-    if (x >= per && x <= this.LAST - per && y <= per - 1 && mh > this.SIZE) {
+    if (x >= per && x <= this.LAST - per && y <= per - 1 && (!core.status.event.data.all && mh > this.SIZE)) {
         core.ui.drawMaps(index, cx, cy - 1);
         return;
     }
-    if (x >= per && x <= this.LAST - per && y >= this.SIZE - per && mh > this.SIZE) {
+    if (x >= per && x <= this.LAST - per && y >= this.SIZE - per && (!core.status.event.data.all && mh > this.SIZE)) {
         core.ui.drawMaps(index, cx, cy + 1);
         return;
     }
@@ -2531,7 +2531,7 @@ actions.prototype._clickReplay = function (x, y) {
 
 actions.prototype._clickReplay_fromBeginning = function () {
     core.ui.closePanel();
-    core.startGame(core.status.hard, core.getFlag('__seed__'), core.clone(core.status.route));
+    core.startGame(core.status.hard, core.getFlag('__seed__'), core.cloneArray(core.status.route));
 }
 
 actions.prototype._clickReplay_fromLoad = function () {
diff --git a/libs/control.js b/libs/control.js
index 1e6b417e..e7df98a5 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -1231,7 +1231,7 @@ control.prototype._drawDamage_draw = function (ctx, onMap) {
         core.fillBoldText(cacheCtx, one.text, px, py, one.color);
     });
 
-    core.setTextAlign(ctx, 'center');
+    core.setTextAlign(cacheCtx, 'center');
     core.status.damage.extraData.forEach(function (one) {
         var px = one.px, py = one.py;
         if (onMap && core.bigmap.v2) {
@@ -1270,7 +1270,7 @@ control.prototype.startReplay = function (list) {
     core.status.replay.replaying=true;
     core.status.replay.pausing=true;
     core.status.replay.speed=1.0;
-    core.status.replay.toReplay = core.clone(list);
+    core.status.replay.toReplay = core.cloneArray(list);
     core.status.replay.totalList = core.status.route.concat(list);
     core.status.replay.steps = 0;
     core.status.replay.save = [];
@@ -1525,8 +1525,8 @@ control.prototype._replay_save = function () {
         if (core.status.replay.save.length == 30)
             core.status.replay.save.shift();
         core.status.replay.save.push({"data": core.saveData(), "replay": {
-            "totalList": core.clone(core.status.replay.totalList),
-            "toReplay": core.clone(core.status.replay.toReplay),
+            "totalList": core.cloneArray(core.status.replay.totalList),
+            "toReplay": core.cloneArray(core.status.replay.toReplay),
             "speed": core.status.replay.speed,
             "steps": core.status.replay.steps
         }});
diff --git a/libs/events.js b/libs/events.js
index 92572803..08a5ff00 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -43,7 +43,7 @@ events.prototype.startGame = function (hard, seed, route, callback) {
 
 events.prototype._startGame_start = function (hard, seed, route, callback) {
     console.log('开始游戏');
-    core.resetGame(core.firstData.hero, hard, null, core.clone(core.initStatus.maps));
+    core.resetGame(core.firstData.hero, hard, null, core.cloneArray(core.initStatus.maps));
     core.setHeroLoc('x', -1);
     core.setHeroLoc('y', -1);
 
diff --git a/libs/maps.js b/libs/maps.js
index 7c064f8c..64c4a6d3 100644
--- a/libs/maps.js
+++ b/libs/maps.js
@@ -313,14 +313,14 @@ maps.prototype.decompressMap = function (mapArr, floorId) {
     var mh = core.floors[floorId].height;
     var floorMap = this._processInvalidMap(core.floors[floorId].map, mw, mh);
 
-    if (!mapArr) return core.clone(floorMap);
+    if (!mapArr) return core.cloneArray(floorMap);
 
     for (var x = 0; x < mh; x++) {
         if (x >= mapArr.length) {
             mapArr.push(0);
         }
         if (mapArr[x] === 0) {
-            mapArr[x] = core.clone(floorMap[x]);
+            mapArr[x] = core.cloneArray(floorMap[x]);
         }
         else {
             for (var y = 0; y < mw; y++) {
@@ -450,9 +450,9 @@ maps.prototype._getBgFgMapArray = function (name, floorId, noCache) {
         return core.status[name + "maps"][floorId];
 
     var arr = (main.mode == 'editor' && !(window.editor && editor.uievent && editor.uievent.isOpen))
-        ? core.clone(editor[name + 'map']) : null;
+        ? core.cloneArray(editor[name + 'map']) : null;
     if (arr == null)
-        arr = core.clone(core.floors[floorId][name + "map"] || []);
+        arr = core.cloneArray(core.floors[floorId][name + "map"] || []);
 
     for (var y = 0; y < height; ++y) {
         if (arr[y] == null) arr[y] = Array(width).fill(0);
@@ -926,22 +926,24 @@ maps.prototype.drawBg = function (floorId, config) {
     var toDrawCtx = core.getContextByName(config.ctx);
     if (!toDrawCtx) return;
 
-    var cacheCtx = core.bigmap.cacheCanvas;
-    cacheCtx.canvas.width = toDrawCtx.canvas.width;
-    cacheCtx.canvas.height = toDrawCtx.canvas.height;
-    if (config.onMap && core.bigmap.v2) cacheCtx.translate(32, 32);
+    var cacheCtx = toDrawCtx;
+    if (config.onMap) {
+        cacheCtx = core.bigmap.cacheCanvas;
+        cacheCtx.canvas.width = toDrawCtx.canvas.width;
+        cacheCtx.canvas.height = toDrawCtx.canvas.height;
+        if (core.bigmap.v2) cacheCtx.translate(32, 32);
+    }
     this._drawBg_draw(floorId, toDrawCtx, cacheCtx, config);
-    cacheCtx.translate(0, 0);
+    if (config.onMap) cacheCtx.translate(0, 0);
 }
 
 maps.prototype._drawBg_draw = function (floorId, toDrawCtx, cacheCtx, config) {
     config.ctx = cacheCtx;
-    var offset = config.onMap && core.bigmap.v2 ? -32 : 0;
     core.maps._drawBg_drawBackground(floorId, config);
     // ------ 调整这两行的顺序来控制是先绘制贴图还是先绘制背景图块；后绘制的覆盖先绘制的。
     core.maps._drawFloorImages(floorId, config.ctx, 'bg', null, null, config.onMap);
     core.maps._drawBgFgMap(floorId, 'bg', config);
-    core.drawImage(toDrawCtx, cacheCtx.canvas, offset, offset);
+    if (config.onMap) core.drawImage(toDrawCtx, cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
     config.ctx = toDrawCtx;
 }
 
@@ -978,15 +980,18 @@ maps.prototype.drawEvents = function (floorId, blocks, config) {
     var toDrawCtx = core.getContextByName(config.ctx);
     if (!toDrawCtx) return;
 
-    var cacheCtx = core.bigmap.cacheCanvas;
-    cacheCtx.canvas.width = toDrawCtx.canvas.width;
-    cacheCtx.canvas.height = toDrawCtx.canvas.height;
-    if (config.onMap && core.bigmap.v2) {
-        cacheCtx.translate(32, 32);
+    var cacheCtx = toDrawCtx;
+    if (config.onMap) {
+        cacheCtx = core.bigmap.cacheCanvas;
+        cacheCtx.canvas.width = toDrawCtx.canvas.width;
+        cacheCtx.canvas.height = toDrawCtx.canvas.height;
+        if (core.bigmap.v2) cacheCtx.translate(32, 32);
     }
 
-    core.extractBlocks(floorId);
-    if (!blocks) blocks = core.status.maps[floorId].blocks;
+    if (!blocks) {
+        core.extractBlocks(floorId);
+        blocks = core.status.maps[floorId].blocks;
+    }
     var arr = this._getMapArrayFromBlocks(blocks, core.floors[floorId].width, core.floors[floorId].height);
 
     blocks.filter(function (block) {
@@ -995,10 +1000,11 @@ maps.prototype.drawEvents = function (floorId, blocks, config) {
         core.maps._drawMap_drawBlockInfo(cacheCtx, block, core.maps.getBlockInfo(block), arr, config.onMap);
     });
 
-    var offset = config.onMap && core.bigmap.v2 ? -32 : 0;
-    core.drawImage(toDrawCtx, cacheCtx.canvas, offset, offset);
-    cacheCtx.translate(0, 0);
-    if (config.onMap) core.status.autotileAnimateObjs.map = arr;
+    if (config.onMap) {
+        core.drawImage(toDrawCtx, cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
+        cacheCtx.translate(0, 0);
+        core.status.autotileAnimateObjs.map = arr;
+    }
 }
 
 ////// 绘制前景层 //////
@@ -1017,21 +1023,23 @@ maps.prototype.drawFg = function (floorId, config) {
     var toDrawCtx = core.getContextByName(config.ctx);
     if (!toDrawCtx) return;
 
-    var cacheCtx = core.bigmap.cacheCanvas;
-    cacheCtx.canvas.width = toDrawCtx.canvas.width;
-    cacheCtx.canvas.height = toDrawCtx.canvas.height;
-    if (config.onMap && core.bigmap.v2) cacheCtx.translate(32, 32);
+    var cacheCtx = toDrawCtx;
+    if (config.onMap) {
+        cacheCtx = core.bigmap.cacheCanvas;
+        cacheCtx.canvas.width = toDrawCtx.canvas.width;
+        cacheCtx.canvas.height = toDrawCtx.canvas.height;
+        if (core.bigmap.v2) cacheCtx.translate(32, 32);
+    }
     this._drawFg_draw(floorId, toDrawCtx, cacheCtx, config);
-    cacheCtx.translate(0, 0);
+    if (config.onMap) cacheCtx.translate(0, 0);
 }
 
 maps.prototype._drawFg_draw = function (floorId, toDrawCtx, cacheCtx, config) {
     config.ctx = cacheCtx;
-    var offset = config.onMap && core.bigmap.v2 ? -32 : 0;
     // ------ 调整这两行的顺序来控制是先绘制贴图还是先绘制前景图块；后绘制的覆盖先绘制的。
     core.maps._drawFloorImages(floorId, config.ctx, 'fg', null, null, config.onMap);
     core.maps._drawBgFgMap(floorId, 'fg', config);
-    core.drawImage(toDrawCtx, cacheCtx.canvas, offset, offset);
+    if (config.onMap) core.drawImage(toDrawCtx, cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
     config.ctx = toDrawCtx;
 }
 
@@ -1067,11 +1075,11 @@ maps.prototype._drawBgFgMap = function (floorId, name, config) {
             var blur = false, alpha;
             if (eventArr != null && eventArr[y][x] != 0) {
                 blur = true;
-                alpha = ctx.globalAlpha;
-                ctx.globalAlpha = 0.6;
+                alpha = config.ctx.globalAlpha;
+                config.ctx.globalAlpha = 0.6;
             }
             this._drawMap_drawBlockInfo(config.ctx, block, blockInfo, arr, config.onMap);
-            if (blur) ctx.globalAlpha = alpha;
+            if (blur) config.ctx.globalAlpha = alpha;
         }
     }
     if (config.onMap)
@@ -1376,16 +1384,19 @@ maps.prototype._makeAutotileEdges = function () {
 // 此函数将绘制一个缩略图，floorId为目标floorId，blocks为地图的图块（可为null使用floorId对应默认的）
 // options为绘制选项（可为null），包括：
 //    heroLoc: 勇士位置；heroIcon：勇士图标（默认当前勇士）；damage：是否绘制显伤；flags：当前的flags（存读档时使用）
-// toDraw为要绘制到的信息（可为null，或为一个画布名），包括：
 //    ctx：要绘制到的画布（名）；x,y：起点横纵坐标（默认0）；size：大小（默认416/480）；
 //    all：是否绘制全图（默认false）；centerX,centerY：截取中心（默认为地图正中心）
-maps.prototype.drawThumbnail = function (floorId, blocks, options, toDraw) {
+maps.prototype.drawThumbnail = function (floorId, blocks, options) {
     floorId = floorId || core.status.floorId;
     if (!floorId) return;
+    options = options || {};
+    if (typeof options == 'string' || options.canvas) options = {ctx: options};
+    var ctx = options.ctx;
     // Step1：绘制到tempCanvas上
     this._drawThumbnail_drawTempCanvas(floorId, blocks, options);
+    options.ctx = ctx;
     // Step2：从tempCanvas绘制到对应的画布上
-    this._drawThumbnail_drawToTarget(floorId, toDraw);
+    this._drawThumbnail_drawToTarget(floorId, options);
 }
 
 maps.prototype._drawThumbnail_drawTempCanvas = function (floorId, blocks, options) {
@@ -1397,10 +1408,35 @@ maps.prototype._drawThumbnail_drawTempCanvas = function (floorId, blocks, option
     var height = core.floors[floorId].height;
     // 绘制到tempCanvas上面
     var tempCanvas = core.bigmap.tempCanvas;
-    var tempWidth = width * 32, tempHeight = height * 32;
-    tempCanvas.canvas.width = tempWidth;
-    tempCanvas.canvas.height = tempHeight;
-    tempCanvas.clearRect(0, 0, tempWidth, tempHeight);
+
+    // 如果是大地图模式？
+    if (options.all) {
+        // 计算比例
+        var scaleX = core.__SIZE__ / width;
+        var scaleY = core.__SIZE__ / height;
+        tempCanvas.canvas.width = width * 32 * scaleX;
+        tempCanvas.canvas.height = height * 32 * scaleY;
+        tempCanvas.scale(scaleX, scaleY);
+    } else if (width * height > core.bigmap.threshold) {
+        options.v2 = true;
+        tempCanvas.canvas.width = core.__PIXELS__;
+        tempCanvas.canvas.height = core.__PIXELS__;
+        var centerX = options.centerX, centerY = options.centerY;
+        if (centerX == null) centerX = Math.floor(width / 2);
+        if (centerY == null) centerY = Math.floor(height / 2);
+        var offsetX = core.clamp(centerX - core.__HALF_SIZE__, 0, width - core.__SIZE__),
+            offsetY = core.clamp(centerY - core.__HALF_SIZE__, 0, height - core.__SIZE__);
+        tempCanvas.translate(-32 * offsetX, -32 * offsetY);
+    } else {
+        options.v2 = false;
+        tempCanvas.canvas.width = width * 32;
+        tempCanvas.canvas.height = height * 32;
+    }
+    options.ctx = tempCanvas;
+    
+    // 地图过大的缩略图不绘制显伤
+    if (width * height > (core.__SIZE__ + 2 * core.bigmap.extend) * (core.__SIZE__ + 2 * core.bigmap.extend))
+        options.damage = false;
 
     // --- 暂存 flags
     var hasHero = core.status.hero != null, flags = null;
@@ -1410,48 +1446,49 @@ maps.prototype._drawThumbnail_drawTempCanvas = function (floorId, blocks, option
         core.status.hero.flags = options.flags;
     }
 
-    this._drawThumbnail_realDrawTempCanvas(floorId, blocks, options, tempCanvas);
+    this._drawThumbnail_realDrawTempCanvas(floorId, blocks, options);
 
     // --- 恢复 flags
     if (!hasHero) delete core.status.hero;
     else if (flags != null) core.status.hero.flags = flags;
+    tempCanvas.setTransform(1, 0, 0, 1, 0, 0);
 }
 
-maps.prototype._drawThumbnail_realDrawTempCanvas = function (floorId, blocks, options, tempCanvas) {
+maps.prototype._drawThumbnail_realDrawTempCanvas = function (floorId, blocks, options) {
     // 缩略图：背景
-    this.drawBg(floorId, tempCanvas);
+    this.drawBg(floorId, options);
     // 缩略图：事件
-    this.drawEvents(floorId, blocks, tempCanvas);
+    this.drawEvents(floorId, blocks, options);
     // 缩略图：勇士
     if (options.heroLoc) {
         options.heroIcon = options.heroIcon || core.status.hero.image || 'hero.png';
         options.heroIcon = core.getMappedName(options.heroIcon);
         var icon = core.material.icons.hero[options.heroLoc.direction];
         var height = core.material.images.images[options.heroIcon].height / 4;
-        core.drawImage(tempCanvas, core.material.images.images[options.heroIcon], icon.stop * 32, icon.loc * height, 32, height,
+        core.drawImage(options.ctx, core.material.images.images[options.heroIcon], icon.stop * 32, icon.loc * height, 32, height,
             32 * options.heroLoc.x, 32 * options.heroLoc.y + 32 - height, 32, height);
     }
     // 缩略图：前景
-    this.drawFg(floorId, tempCanvas);
+    this.drawFg(floorId, options);
     // 缩略图：显伤
-    if (options.damage)
-        core.control.updateDamage(floorId, tempCanvas);
+    if (options.damage && core.hasItem('book')) {
+        core.updateCheckBlock(floorId);
+        core.control.updateDamage(floorId, options.ctx);
+    }
 }
 
-maps.prototype._drawThumbnail_drawToTarget = function (floorId, toDraw) {
-    if (toDraw == null) return;
-    if (typeof toDraw == 'string' || toDraw.canvas) toDraw = {ctx: toDraw};
-    var ctx = core.getContextByName(toDraw.ctx);
+maps.prototype._drawThumbnail_drawToTarget = function (floorId, options) {
+    var ctx = core.getContextByName(options.ctx);
     if (ctx == null) return;
-    var x = toDraw.x || 0, y = toDraw.y || 0, size = toDraw.size || core.__PIXELS__;
+    var x = options.x || 0, y = options.y || 0, size = options.size || core.__PIXELS__;
     var width = core.floors[floorId].width, height = core.floors[floorId].height;
-    var centerX = toDraw.centerX, centerY = toDraw.centerY;
+    var centerX = options.centerX, centerY = options.centerY;
     if (centerX == null) centerX = Math.floor(width / 2);
     if (centerY == null) centerY = Math.floor(height / 2);
-    var tempCanvas = core.bigmap.tempCanvas, tempWidth = 32 * width, tempHeight = 32 * height;
+    var tempCanvas = core.bigmap.tempCanvas; 
 
-    // core.clearMap(ctx, x, y, size, size);
-    if (toDraw.all) {
+    if (options.all) {
+        var tempWidth = tempCanvas.canvas.width, tempHeight = tempCanvas.canvas.height;
         // 绘制全景图
         if (tempWidth <= tempHeight) {
             var realHeight = size, realWidth = realHeight * tempWidth / tempHeight;
@@ -1470,9 +1507,14 @@ maps.prototype._drawThumbnail_drawToTarget = function (floorId, toDraw) {
     }
     else {
         // 只绘制可见窗口
-        var offsetX = core.clamp(centerX - core.__HALF_SIZE__, 0, width - core.__SIZE__),
-            offsetY = core.clamp(centerY - core.__HALF_SIZE__, 0, height - core.__SIZE__);
-        core.drawImage(ctx, tempCanvas.canvas, offsetX * 32, offsetY * 32, core.__PIXELS__, core.__PIXELS__, x, y, size, size);
+        if (options.v2) {
+            core.drawImage(ctx, tempCanvas.canvas, 0, 0, core.__PIXELS__, core.__PIXELS__, x, y, size, size);
+        } else {
+            var offsetX = core.clamp(centerX - core.__HALF_SIZE__, 0, width - core.__SIZE__),
+                offsetY = core.clamp(centerY - core.__HALF_SIZE__, 0, height - core.__SIZE__);
+            core.drawImage(ctx, tempCanvas.canvas, offsetX * 32, offsetY * 32, core.__PIXELS__, core.__PIXELS__, x, y, size, size);
+        }
+
     }
 }
 
diff --git a/libs/ui.js b/libs/ui.js
index 89237ffa..e13c6fc9 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -2280,7 +2280,7 @@ ui.prototype.drawFly = function(page) {
     }
     var size = this.PIXEL - 143;
     core.strokeRect('ui', 20, 100, size, size, '#FFFFFF', 2);
-    core.drawThumbnail(floorId, null, null, {ctx: 'ui', x: 20, y: 100, size: size});
+    core.drawThumbnail(floorId, null, {ctx: 'ui', x: 20, y: 100, size: size});
 }
 
 ////// 绘制中心对称飞行器
@@ -2292,8 +2292,7 @@ ui.prototype.drawCenterFly = function () {
     var toX = core.bigmap.width - 1 - core.getHeroLoc('x'), toY = core.bigmap.height - 1 - core.getHeroLoc('y');
     this.clearUI();
     core.fillRect('ui', 0, 0, this.PIXEL, this.PIXEL, '#000000');
-    core.drawThumbnail(null, null, {heroLoc: core.status.hero.loc, heroIcon: core.status.hero.image},
-        {ctx: 'ui', centerX: toX, centerY: toY});
+    core.drawThumbnail(null, null, {heroLoc: core.status.hero.loc, heroIcon: core.status.hero.image, ctx: 'ui', centerX: toX, centerY: toY});
     var offsetX = core.clamp(toX - core.__HALF_SIZE__, 0, core.bigmap.width - core.__SIZE__),
         offsetY = core.clamp(toY - core.__HALF_SIZE__, 0, core.bigmap.height - core.__SIZE__);
     core.fillRect('ui', (toX - offsetX) * 32, (toY - offsetY) * 32, 32, 32, fillstyle);
@@ -2312,8 +2311,7 @@ ui.prototype.drawMaps = function (index, x, y) {
     core.status.checkBlock.cache = {};
     var data = this._drawMaps_buildData(index, x, y);
     core.fillRect('ui', 0, 0, this.PIXEL, this.PIXEL, '#000000');
-    core.drawThumbnail(data.floorId, null, {damage: data.damage},
-        {ctx: 'ui', centerX: data.x, centerY: data.y, all: data.all});
+    core.drawThumbnail(data.floorId, null, {damage: data.damage, ctx: 'ui', centerX: data.x, centerY: data.y, all: data.all});
     core.clearMap('data');
     core.setTextAlign('data', 'left');
     core.setFont('data', '16px Arial');
@@ -2780,8 +2778,7 @@ ui.prototype._drawSLPanel_drawRecord = function(title, data, x, y, size, cho, hi
         var map = core.maps.loadMap(data.maps, data.floorId);
         core.extractBlocksForUI(map, data.hero.flags);
         core.drawThumbnail(data.floorId, map.blocks, {
-            heroLoc: data.hero.loc, heroIcon: data.hero.image, flags: data.hero.flags
-        }, {
+            heroLoc: data.hero.loc, heroIcon: data.hero.image, flags: data.hero.flags,
             ctx: 'ui', x: x-size/2, y: y+15, size: size, centerX: data.hero.loc.x, centerY: data.hero.loc.y
         });
         if (core.isPlaying() && core.getFlag("hard") != data.hero.flags.hard) {
diff --git a/libs/utils.js b/libs/utils.js
index 377c8d84..db10c44b 100644
--- a/libs/utils.js
+++ b/libs/utils.js
@@ -350,6 +350,16 @@ utils.prototype.clone = function (data, filter, recursion) {
     return data;
 }
 
+////// 深拷贝1D/2D数组优化 //////
+utils.prototype.cloneArray = function (data) {
+    if (!(data instanceof Array)) return this.clone(data);
+    if (data[0] instanceof Array) {
+        return data.map(function (one) { return one.slice(); });
+    } else {
+        return data.slice();
+    }
+}
+
 ////// 裁剪图片 //////
 utils.prototype.splitImage = function (image, width, height) {
     if (typeof image == "string") {
@@ -668,7 +678,7 @@ utils.prototype.isset = function (val) {
 utils.prototype.subarray = function (a, b) {
     if (!(a instanceof Array) || !(b instanceof Array) || a.length < b.length)
         return null;
-    var na = core.clone(a), nb = core.clone(b);
+    var na = core.cloneArray(a), nb = core.cloneArray(b);
     while (nb.length > 0) {
         if (na.shift() != nb.shift()) return null;
     }
diff --git a/project/data.js b/project/data.js
index 107a2762..60f620a9 100644
--- a/project/data.js
+++ b/project/data.js
@@ -130,7 +130,7 @@ var data_a1e2fb4a_e986_4524_b0da_9b7ba7c0874d =
 			"loc": {
 				"direction": "up",
 				"x": 6,
-				"y": 10
+				"y": 12
 			},
 			"flags": {},
 			"followers": [],
diff --git a/project/floors/sample2.js b/project/floors/sample2.js
index e4a43b23..443f6c44 100644
--- a/project/floors/sample2.js
+++ b/project/floors/sample2.js
@@ -14,14 +14,14 @@ main.floors.sample2=
     [  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
     [  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
     [  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,206,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
-    [  0,  0,151,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
-    [  0,  0,151,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
-    [  0,  0,151,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
-    [  0,  0,151,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,202,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
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     [  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0],
diff --git a/project/plugins.js b/project/plugins.js
index bdd2ef51..7eded405 100644
--- a/project/plugins.js
+++ b/project/plugins.js
@@ -353,7 +353,7 @@ var plugins_bb40132b_638b_4a9f_b028_d3fe47acc8d1 =
 		// 背景层2(bg2) 插入事件层(event)之前(即bg与event之间)
 		document.getElementById('mapEdit').insertBefore(bg2Canvas, document.getElementById('event'));
 		// 前景层2(fg2) 插入编辑器前景(efg)之前(即fg之后)
-		document.getElementById('mapEdit').insertBefore(fg2Canvas, document.getElementById('efg'));
+		document.getElementById('mapEdit').insertBefore(fg2Canvas, document.getElementById('ebm'));
 		// 原本有三个图层 从4开始添加
 		var num = 4;
 		// 新增图层存入editor.dom中
@@ -424,29 +424,31 @@ var plugins_bb40132b_638b_4a9f_b028_d3fe47acc8d1 =
 	////// 绘制背景和前景层 //////
 	core.maps._drawBg_draw = function (floorId, toDrawCtx, cacheCtx, config) {
 		config.ctx = cacheCtx;
-		var offset = config.onMap && core.bigmap.v2 ? -32 : 0;
 		core.maps._drawBg_drawBackground(floorId, config);
 		// ------ 调整这两行的顺序来控制是先绘制贴图还是先绘制背景图块；后绘制的覆盖先绘制的。
 		core.maps._drawFloorImages(floorId, config.ctx, 'bg', null, null, config.onMap);
 		core.maps._drawBgFgMap(floorId, 'bg', config);
-		core.drawImage(toDrawCtx, cacheCtx.canvas, offset, offset);
-		if (config.onMap) core.clearMap('bg2');
-		core.clearMap(cacheCtx);
+		if (config.onMap) {
+			core.drawImage(toDrawCtx, cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
+			core.clearMap('bg2');
+			core.clearMap(cacheCtx);
+		}
 		core.maps._drawBgFgMap(floorId, 'bg2', config);
-		core.drawImage(config.onMap ? 'bg2' : toDrawCtx, cacheCtx.canvas, offset, offset);
+		if (config.onMap) core.drawImage('bg2', cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
 		config.ctx = toDrawCtx;
 	}
 	core.maps._drawFg_draw = function (floorId, toDrawCtx, cacheCtx, config) {
 		config.ctx = cacheCtx;
-		var offset = config.onMap && core.bigmap.v2 ? -32 : 0;
 		// ------ 调整这两行的顺序来控制是先绘制贴图还是先绘制前景图块；后绘制的覆盖先绘制的。
 		core.maps._drawFloorImages(floorId, config.ctx, 'fg', null, null, config.onMap);
 		core.maps._drawBgFgMap(floorId, 'fg', config);
-		core.drawImage(toDrawCtx, cacheCtx.canvas, offset, offset);
-		if (config.onMap) core.clearMap('fg2');
-		core.clearMap(cacheCtx);
+		if (config.onMap) {
+			core.drawImage(toDrawCtx, cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
+			core.clearMap('fg2');
+			core.clearMap(cacheCtx);
+		}
 		core.maps._drawBgFgMap(floorId, 'fg2', config);
-		core.drawImage(config.onMap ? 'fg2' : toDrawCtx, cacheCtx.canvas, offset, offset);
+		if (config.onMap) core.drawImage('fg2', cacheCtx.canvas, core.bigmap.v2 ? -32 : 0, core.bigmap.v2 ? -32 : 0);
 		config.ctx = toDrawCtx;
 	}
 
diff --git a/runtime.d.ts b/runtime.d.ts
index d49316a6..9a873016 100644
--- a/runtime.d.ts
+++ b/runtime.d.ts
@@ -1530,9 +1530,8 @@ declare class maps {
      * @param floorId 地图id，不填视为当前地图
      * @param blocks 一般不需要
      * @param options 额外的绘制项，可选。可以增绘主角位置和朝向、采用不同于游戏中的主角行走图、增绘显伤、提供flags用于存读档
-     * @param toDraw 要绘制到的画布名或画布的ctx或还有其他信息，如起绘坐标、绘制大小、是否绘制全图、截取中心
      */
-    drawThumbnail(floorId?: string, blocks?: Block[], options?: object, toDraw?: string | CanvasRenderingContext2D | object): void
+    drawThumbnail(floorId?: string, blocks?: Block[], options?: object): void
     
     /**
      * 判定某个点是否不可被踏入（不基于主角生命值和图块cannotIn属性）
@@ -2376,6 +2375,9 @@ declare class utils {
      */
     clone<T>(data?: T, filter?: (name: string, value: any) => boolean, recursion?: boolean): T
 
+    /** 深拷贝一个1D或2D的数组 */
+    cloneArray(data?: Array<number>|Array<Array<number>>): Array<number>|Array<Array<number>>
+
     /**
      * 等比例切分一张图片
      * @example core.splitImage(core.material.images.images['npc48.png'], 32, 48); // 把npc48.png切分成若干32×48px的小人