diff --git a/_docs/api.md b/_docs/api.md
index f8268b3f..e7c3f2e2 100644
--- a/_docs/api.md
+++ b/_docs/api.md
@@ -1358,9 +1358,12 @@ canMoveDirectlyArray: fn(locs?: [[number]])
 hideFloorImage: fn(loc?: [number]|[[number]], floorId?: string, callback?: fn())
 隐藏一个楼层贴图
 
-extractBlocks: fn(map?: [[number]], flags?: flags)
+extractBlocks: fn(map?: ?)
 根据需求解析出blocks
 
+extractBlocksForUI: fn(map?: ?, flags?: flags)
+根据需求为UI解析出blocks
+
 getBlockId: fn(x: number, y: number, floorId?: string, showDisable?: bool) -> string
 判定某个点的图块id
 例如：if(core.getBlockId(x1, y1) != 'greenSlime' && core.getBlockId(x2, y2) != 'redSlime') core.openDoor(x3, y3); // 一个简单的机关门事件，打败或炸掉这一对绿头怪和红头怪就开门
@@ -1442,7 +1445,7 @@ ctx: 某画布的ctx，用于绘制缩略图，一般不需要
 getBlock: fn(x: number, y: number, floorId?: string, showDisable?: bool) -> {index: number, block: block}
 获得某个点的block
 
-initBlock: fn(x: number, y: number, id: string|number, addInfo?: bool, eventFloor?: ?, flags?: ?) -> block
+initBlock: fn(x: number, y: number, id: string|number, addInfo?: bool, eventFloor?: ?) -> block
 初始化一个图块
 
 addGlobalAnimate: fn(block?: block)
diff --git a/_server/CodeMirror/defs.js b/_server/CodeMirror/defs.js
index 3d6e0332..89942a05 100644
--- a/_server/CodeMirror/defs.js
+++ b/_server/CodeMirror/defs.js
@@ -3172,7 +3172,11 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
         }, 
         "extractBlocks": {
           "!doc": "根据需求解析出blocks", 
-          "!type": "fn(map?: [[number]], flags?: flags)"
+          "!type": "fn(map?: ?)"
+        }, 
+        "extractBlocksForUI": {
+          "!doc": "根据需求为UI解析出blocks", 
+          "!type": "fn(map?: ?, flags?: ?)"
         }, 
         "getBlockId": {
           "!doc": "判定某个点的图块id<br/>例如：if(core.getBlockId(x1, y1) != 'greenSlime' && core.getBlockId(x2, y2) != 'redSlime') core.openDoor(x3, y3); // 一个简单的机关门事件，打败或炸掉这一对绿头怪和红头怪就开门<br/>x: 横坐标<br/>y: 纵坐标<br/>floorId: 地图id，不填视为当前地图<br/>showDisable: 隐藏点是否不返回null，true表示不返回null<br/>返回值：图块id，该点无图块则返回null", 
@@ -3240,7 +3244,7 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
         }, 
         "initBlock": {
           "!doc": "初始化一个图块", 
-          "!type": "fn(x: number, y: number, id: string|number, addInfo?: bool, eventFloor?: ?, flags?: ?) -> block"
+          "!type": "fn(x: number, y: number, id: string|number, addInfo?: bool, eventFloor?: ?) -> block"
         }, 
         "addGlobalAnimate": {
           "!doc": "添加一个全局动画", 
diff --git a/libs/maps.js b/libs/maps.js
index 4703b7f9..7c064f8c 100644
--- a/libs/maps.js
+++ b/libs/maps.js
@@ -61,7 +61,7 @@ maps.prototype.loadFloor = function (floorId, map) {
 }
 
 /// 根据需求解析出blocks
-maps.prototype.extractBlocks = function (map, flags) {
+maps.prototype.extractBlocks = function (map) {
     map = map || core.status.floorId;
     if (typeof map == 'string') map = (core.status.maps||{})[map];
     if (!map) return;
@@ -71,16 +71,16 @@ maps.prototype.extractBlocks = function (map, flags) {
         return;
     }
     var floorId = map.floorId;
-    map.blocks = this._mapIntoBlocks(this.decompressMap(map.map, floorId), core.floors[floorId], floorId, flags);
+    map.blocks = this._mapIntoBlocks(this.decompressMap(map.map, floorId), core.floors[floorId], floorId);
 }
 
-maps.prototype._mapIntoBlocks = function (map, floor, floorId, flags) {
+maps.prototype._mapIntoBlocks = function (map, floor, floorId) {
     var blocks = [];
     var mw = core.floors[floorId].width;
     var mh = core.floors[floorId].height;
     for (var i = 0; i < mh; i++) {
         for (var j = 0; j < mw; j++) {
-            var block = this.initBlock(j, i, (map[i] || [])[j], true, floor, flags);
+            var block = this.initBlock(j, i, (map[i] || [])[j], true, floor);
             if (block.id != 0 || block.event.trigger)
                 blocks.push(block);
         }
@@ -88,6 +88,23 @@ maps.prototype._mapIntoBlocks = function (map, floor, floorId, flags) {
     return blocks;
 }
 
+maps.prototype.extractBlocksForUI = function (map, flags) {
+    if (!map || map.blocks) return;
+    if (map.deleted) return map.blocks = [];
+    var floorId = map.floorId;
+    var decompressed = this.decompressMap(map.map, floorId);
+    map.blocks = [];
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
+    for (var i = 0; i < mh; i++) {
+        for (var j = 0; j < mw; j++) {
+            var number = (decompressed[i] || [])[j] || 0;
+            if (!number || number == 17 || this.isMapBlockDisabled(floorId, i, j, flags)) continue;
+            map.blocks.push(this.initBlock(j, i, number));
+        }
+    }
+}
+
 ////// 从ID获得数字 //////
 maps.prototype.getNumberById = function (id) {
     id = this.getIdOfThis(id);
@@ -129,11 +146,10 @@ maps.prototype.getIdOfThis = function (id) {
 }
 
 ////// 数字和ID的对应关系 //////
-maps.prototype.initBlock = function (x, y, id, addInfo, eventFloor, flags) {
+maps.prototype.initBlock = function (x, y, id, addInfo, eventFloor) {
     var disable = null;
     if (eventFloor != null) {
-        if (flags == null) flags = (core.status.hero || {}).flags || {};
-        disable = this.isMapBlockDisabled(eventFloor.floorId, x, y, flags);
+        disable = this.isMapBlockDisabled(eventFloor.floorId, x, y);
     }
     var block = {'x': x, 'y': y, 'id': id};
     if (disable != null) block.disable = disable;
@@ -1373,10 +1389,10 @@ maps.prototype.drawThumbnail = function (floorId, blocks, options, toDraw) {
 }
 
 maps.prototype._drawThumbnail_drawTempCanvas = function (floorId, blocks, options) {
-    core.extractBlocks(floorId);
-    blocks = blocks || core.status.maps[floorId].blocks;
-    options = options || {}
-
+    if (!blocks) {
+        core.extractBlocks(floorId);
+        blocks = core.status.maps[floorId].blocks;
+    }
     var width = core.floors[floorId].width;
     var height = core.floors[floorId].height;
     // 绘制到tempCanvas上面
diff --git a/libs/ui.js b/libs/ui.js
index a1b5f5f3..89237ffa 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -2778,7 +2778,7 @@ ui.prototype._drawSLPanel_drawRecord = function(title, data, x, y, size, cho, hi
     if (data && data.floorId) {
         core.setTextAlign('ui', "center");
         var map = core.maps.loadMap(data.maps, data.floorId);
-        core.extractBlocks(map, data.hero.flags);
+        core.extractBlocksForUI(map, data.hero.flags);
         core.drawThumbnail(data.floorId, map.blocks, {
             heroLoc: data.hero.loc, heroIcon: data.hero.image, flags: data.hero.flags
         }, {
diff --git a/runtime.d.ts b/runtime.d.ts
index 71d86617..d49316a6 100644
--- a/runtime.d.ts
+++ b/runtime.d.ts
@@ -1710,6 +1710,9 @@ declare class maps {
     loadFloor(floorId?: string, map?: any): any
 
     /** 根据需求解析出blocks */
+    extractBlocks(map?: any): void
+
+    /** 根据需求为UI解析出blocks */
     extractBlocks(map?: any, flags?: any): void
 
     /** 根据数字获得图块 */
@@ -1722,7 +1725,7 @@ declare class maps {
     getIdOfThis(id?: string): string
 
     /** 初始化一个图块 */
-    initBlock(x?: number, y?: number, id?: string | number, addInfo?: boolean, eventFloor?: any, flags?: any): any
+    initBlock(x?: number, y?: number, id?: string | number, addInfo?: boolean, eventFloor?: any): any
 
     /** 压缩地图 */
     compressMap(mapArr?: any, floorId?: string): any