diff --git a/libs/actions.js b/libs/actions.js
index 06740662..87bedddf 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -1028,7 +1028,7 @@ actions.prototype._clickViewMaps = function (x,y) {
     var now = core.floorIds.indexOf(core.status.floorId);
     var index = core.status.event.data.index;
     var cx = core.status.event.data.x, cy = core.status.event.data.y;
-    var floorId = core.floorIds[index], mw = core.floors[floorId].width||13, mh = core.floors[floorId].height||13;
+    var floorId = core.floorIds[index], mw = core.floors[floorId].width, mh = core.floors[floorId].height;
 
     if (x==0 && y==0) {
         core.status.event.data.damage = !core.status.event.data.damage;
@@ -1087,7 +1087,7 @@ actions.prototype._clickViewMaps = function (x,y) {
 actions.prototype._keyDownViewMaps = function (keycode) {
     if (!core.isset(core.status.event.data)) return;
 
-    var floorId = core.floorIds[core.status.event.data.index], mh = core.floors[floorId].height||13;
+    var floorId = core.floorIds[core.status.event.data.index], mh = core.floors[floorId].height;
 
     if (keycode==38||keycode==33) this._clickViewMaps(6, 3);
     if (keycode==40||keycode==34) this._clickViewMaps(6, 9);
diff --git a/libs/control.js b/libs/control.js
index e30dfe85..c3430543 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -1503,8 +1503,8 @@ control.prototype.updateDamage = function (floorId, canvas) {
         if (floorId != core.status.floorId) {
             tempCheckBlock = core.clone(core.status.checkBlock);
             core.status.thisMap = core.status.maps[floorId];
-            core.bigmap.width = core.floors[floorId].width || 13;
-            core.bigmap.height = core.floors[floorId].height || 13;
+            core.bigmap.width = core.floors[floorId].width;
+            core.bigmap.height = core.floors[floorId].height;
             core.updateCheckBlock();
         }
 
@@ -1526,8 +1526,8 @@ control.prototype.updateDamage = function (floorId, canvas) {
         if (floorId!=core.status.floorId) {
             core.status.thisMap = core.status.maps[core.status.floorId];
             core.status.checkBlock = tempCheckBlock;
-            core.bigmap.width = core.floors[core.status.floorId].width || 13;
-            core.bigmap.height = core.floors[core.status.floorId].height || 13;
+            core.bigmap.width = core.floors[core.status.floorId].width;
+            core.bigmap.height = core.floors[core.status.floorId].height;
         }
     }
 }
diff --git a/libs/core.js b/libs/core.js
index c2cd4342..c35abc7f 100644
--- a/libs/core.js
+++ b/libs/core.js
@@ -232,6 +232,8 @@ core.prototype.init = function (coreData, callback) {
         })
     }
 
+    core.maps._setFloorSize();
+
     core.dom.versionLabel.innerHTML = core.firstData.version;
     core.dom.logoLabel.innerHTML = core.firstData.title;
     document.title = core.firstData.title + " - HTML5魔塔";
diff --git a/libs/maps.js b/libs/maps.js
index 70179b5a..55edebc3 100644
--- a/libs/maps.js
+++ b/libs/maps.js
@@ -2,6 +2,10 @@
 
 function maps() {
     this._init();
+    this.DEFAULT_WIDTH = 13;
+    this.DEFAULT_HEIGHT = 13;
+    this.DEFAULT_PIXEL_WIDTH = this.DEFAULT_WIDTH * 32;
+    this.DEFAULT_PIXEL_HEIGHT = this.DEFAULT_HEIGHT * 32;
 }
 
 maps.prototype._init = function() {
@@ -9,6 +13,17 @@ maps.prototype._init = function() {
     //delete(maps_90f36752_8815_4be8_b32b_d7fad1d0542e);
 }
 
+maps.prototype._setFloorSize = function (floorId) {
+    if (!core.isset(floorId)) {
+        core.floorIds.forEach(function (floorId) {
+            core.maps._setFloorSize(floorId);
+        });
+        return;
+    }
+    core.floors[floorId].width = core.floors[floorId].width || this.DEFAULT_WIDTH;
+    core.floors[floorId].height = core.floors[floorId].height || this.DEFAULT_HEIGHT;
+}
+
 ////// 加载某个楼层（从剧本或存档中） //////
 maps.prototype.loadFloor = function (floorId, map) {
     var floor = core.floors[floorId];
@@ -26,8 +41,8 @@ maps.prototype.loadFloor = function (floorId, map) {
     map=this.decompressMap(map.map, floorId);
     var mapIntoBlocks = function(map,maps,floor,floorId){
         var blocks = [];
-        var mw = core.floors[floorId].width || 13;
-        var mh = core.floors[floorId].height || 13;
+        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 = maps.initBlock(j, i, (map[i]||[])[j]||0);
@@ -189,8 +204,8 @@ maps.prototype.initMaps = function (floorIds) {
 maps.prototype.__initFloorMap = function (floorId) {
     var map = core.clone(core.floors[floorId].map);
 
-    var mw = core.floors[floorId].width || 13;
-    var mh = core.floors[floorId].height || 13;
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
 
     for (var x=0;x<mh;x++) {
         if (!core.isset(map[x])) map[x] = [];
@@ -212,8 +227,8 @@ maps.prototype.compressMap = function (mapArr, floorId) {
     var floorMap = this.__initFloorMap(floorId);
     if (core.utils.same(mapArr, floorMap)) return null;
 
-    var mw = core.floors[floorId].width || 13;
-    var mh = core.floors[floorId].height || 13;
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
     for (var x=0;x<mh;x++) {
         if (core.utils.same(mapArr[x], floorMap[x])) {
             // 没有改变的行直接删掉记成0
@@ -236,8 +251,8 @@ maps.prototype.decompressMap = function (mapArr, floorId) {
     var floorMap = this.__initFloorMap(floorId);
     if (!core.isset(mapArr)) return floorMap;
 
-    var mw = core.floors[floorId].width || 13;
-    var mh = core.floors[floorId].height || 13;
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
     for (var x=0;x<mh;x++) {
         if (mapArr[x] === 0) {
             mapArr[x] = floorMap[x];
@@ -262,8 +277,8 @@ maps.prototype.saveMap = function(maps, floorId) {
         }
         return map;
     }
-    var mw = core.floors[floorId].width || 13;
-    var mh = core.floors[floorId].height || 13;
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
 
     var blocks = [];
     for (var x=0;x<mh;x++) {
@@ -299,8 +314,8 @@ maps.prototype.saveMap = function(maps, floorId) {
 maps.prototype.resizeMap = function(floorId) {
     floorId = floorId || core.status.floorId;
     if (!core.isset(floorId)) return;
-    core.bigmap.width = core.floors[floorId].width || 13;
-    core.bigmap.height = core.floors[floorId].height || 13;
+    core.bigmap.width = core.floors[floorId].width;
+    core.bigmap.height = core.floors[floorId].height;
     var cwidth = core.bigmap.width * 32;
     var cheight = core.bigmap.height * 32;
     core.bigmap.canvas.forEach(function(cn){
@@ -330,8 +345,8 @@ maps.prototype.loadMap = function (data, floorId) {
 ////// 将当前地图重新变成二维数组形式 //////
 maps.prototype.getMapArray = function (blockArray,width,height){
 
-    width=width||13;
-    height=height||13;
+    width=width||this.DEFAULT_WIDTH;
+    height=height||this.DEFAULT_HEIGHT;
 
     var blocks = [];
     for (var x=0;x<height;x++) {
@@ -488,8 +503,8 @@ maps.prototype.drawBlock = function (block, animate, dx, dy) {
 maps.prototype.getBgFgMapArray = function (floorId, name) {
     floorId = floorId||core.status.floorId;
     if (!core.isset(floorId)) return [];
-    var width = core.floors[floorId].width || 13;
-    var height = core.floors[floorId].height || 13;
+    var width = core.floors[floorId].width;
+    var height = core.floors[floorId].height;
 
     if (main.mode!='editor' && core.isset(core.status[name+"maps"][floorId]))
         return core.status[name+"maps"][floorId];
@@ -512,8 +527,8 @@ maps.prototype.getBgFgMapArray = function (floorId, name) {
 maps.prototype.drawBgFgMap = function (floorId, canvas, name, animate) {
     floorId = floorId || core.status.floorId;
     if (!core.isset(floorId)) return;
-    var width = core.floors[floorId].width || 13;
-    var height = core.floors[floorId].height || 13;
+    var width = core.floors[floorId].width;
+    var height = core.floors[floorId].height;
 
     if (!core.isset(core.status[name+"maps"]))
         core.status[name+"maps"] = {};
@@ -638,8 +653,8 @@ maps.prototype.drawMap = function (floorId, callback) {
     this.generateGroundPattern(floorId);
 
     var drawBg = function(){
-        var width = core.floors[floorId].width || 13;
-        var height = core.floors[floorId].height || 13;
+        var width = core.floors[floorId].width;
+        var height = core.floors[floorId].height;
 
         for (var x = 0; x < width; x++) {
             for (var y = 0; y < height; y++) {
@@ -1399,7 +1414,7 @@ maps.prototype.setBlock = function (number, x, y, floorId) {
     floorId = floorId || core.status.floorId;
     if (!core.isset(floorId)) return;
     if (!core.isset(number) || !core.isset(x) || !core.isset(y)) return;
-    if (x<0 || x>=(core.floors[floorId].width||13) || y<0 || y>=(core.floors[floorId].height||13)) return;
+    if (x<0 || x>=core.floors[floorId].width || y<0 || y>=core.floors[floorId].height) return;
 
     var originBlock=core.getBlock(x,y,floorId,true);
     var block = core.maps.initBlock(x,y,number);
@@ -1437,7 +1452,7 @@ maps.prototype.setBgFgBlock = function (name, number, x, y, floorId) {
     floorId = floorId || core.status.floorId;
     if (!core.isset(floorId)) return;
     if (!core.isset(number) || !core.isset(x) || !core.isset(y)) return;
-    if (x<0 || x>=(core.floors[floorId].width||13) || y<0 || y>=(core.floors[floorId].height||13)) return;
+    if (x<0 || x>=core.floors[floorId].width || y<0 || y>=core.floors[floorId].height) return;
     if (name!='bg' && name!='fg') return;
 
     core.setFlag(name+"v_"+floorId+"_"+x+"_"+y, number);
diff --git a/libs/ui.js b/libs/ui.js
index a89adab7..13e77724 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -1669,7 +1669,7 @@ ui.prototype.drawMaps = function (index, x, y) {
 
     if (index<0) index=0;
     if (index>=core.floorIds.length) index=core.floorIds.length-1;
-    var floorId = core.floorIds[index], mw = core.floors[floorId].width||13, mh = core.floors[floorId].height||13;
+    var floorId = core.floorIds[index], mw = core.floors[floorId].width, mh = core.floors[floorId].height;
     if (!core.isset(x)) x = parseInt(mw/2);
     if (!core.isset(y)) y = parseInt(mh/2);
     if (x<6) x=6;
@@ -2161,8 +2161,8 @@ ui.prototype.drawSLPanel = function(index, refresh) {
 ////// 绘制一个缩略图 //////
 ui.prototype.drawThumbnail = function(floorId, canvas, blocks, x, y, size, centerX, centerY, heroLoc, heroIcon) {
 
-    var mw = core.floors[floorId].width || 13;
-    var mh = core.floors[floorId].height || 13;
+    var mw = core.floors[floorId].width;
+    var mh = core.floors[floorId].height;
     // 绘制到tempCanvas上面
     var tempCanvas = core.bigmap.tempCanvas;
     var tempWidth = mw*32, tempHeight = mh*32;
diff --git a/project/items.js b/project/items.js
index 23ba3cfd..793296cb 100644
--- a/project/items.js
+++ b/project/items.js
@@ -368,7 +368,7 @@ var items_296f5d02_12fd_4166_a7c1_b5e830c9ee3a =
 		"bigKey": "core.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n});",
 		"bomb": "core.playSound('bomb.mp3');\ncore.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\tcore.events.afterUseBomb();\n});",
 		"hammer": "core.playSound('bomb.mp3');\ncore.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\tcore.events.afterUseBomb();\n});",
-		"centerFly": "core.playSound('centerFly.mp3');\ncore.clearMap('hero');\ncore.setHeroLoc('x', (core.bigmap.width||13)-1-core.getHeroLoc('x'));\ncore.setHeroLoc('y', (core.bigmap.height||13)-1-core.getHeroLoc('y'));\ncore.drawHero();\ncore.drawTip(core.material.items[itemId].name + '使用成功');",
+		"centerFly": "core.playSound('centerFly.mp3');\ncore.clearMap('hero');\ncore.setHeroLoc('x', core.bigmap.width-1-core.getHeroLoc('x'));\ncore.setHeroLoc('y', core.bigmap.height-1-core.getHeroLoc('y'));\ncore.drawHero();\ncore.drawTip(core.material.items[itemId].name + '使用成功');",
 		"upFly": "var loc = {'direction': core.status.hero.loc.direction, 'x': core.status.event.ui.x, 'y': core.status.event.ui.y};\nif (core.status.event.id == 'action') {\n\tcore.insertAction([\n\t\t{\"type\": \"changeFloor\", \"loc\": [loc.x, loc.y], \"direction\": loc.direction, \"floorId\": core.status.event.ui.id},\n\t\t{\"type\": \"tip\", \"text\": core.material.items[itemId].name + '使用成功'}\n\t]);\n}\nelse {\n\tcore.changeFloor(core.status.event.ui.id, null, loc, null, function (){\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\t\tcore.replay();\n\t});\n}",
 		"downFly": "var loc = {'direction': core.status.hero.loc.direction, 'x': core.status.event.ui.x, 'y': core.status.event.ui.y};\nif (core.status.event.id == 'action') {\n\tcore.insertAction([\n\t\t{\"type\": \"changeFloor\", \"loc\": [loc.x, loc.y], \"direction\": loc.direction, \"floorId\": core.status.event.ui.id},\n\t\t{\"type\": \"tip\", \"text\": core.material.items[itemId].name + '使用成功'}\n\t]);\n}\nelse {\n\tcore.changeFloor(core.status.event.ui.id, null, loc, null, function (){\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\t\tcore.replay();\n\t});\n}\n",
 		"poisonWine": "core.removeFlag('poison');",
@@ -395,9 +395,9 @@ var items_296f5d02_12fd_4166_a7c1_b5e830c9ee3a =
 		"bomb": "(function () {\n\tvar ids = [], id2s = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (core.isset(block.event) && !block.disable && block.event.cls.indexOf('enemy')==0 && core.nearHero(block.x, block.y)) {\n\t\t\tvar enemy = core.material.enemys[block.event.id];\n\t\t\tif (core.isset(enemy) && enemy.notBomb) continue;\n\t\t\tif (core.flags.bombFourDirections || (block.x==core.nextX() && block.y==core.nextY()))\n\t\t\t\tids.push(i);\n\t\t\telse\n\t\t\t\tid2s.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\treturn true;\n\t}\n\tif (id2s.length==1) {\n\t\tcore.status.event.ui = id2s;\n\t\treturn true;\n\t}\n\treturn false;\n})();",
 		"hammer": "(function() {\n\tvar ids = [], id2s = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (core.isset(block.event) && !block.disable && block.event.cls.indexOf('enemy')==0 && core.nearHero(block.x, block.y)) {\n\t\t\tvar enemy = core.material.enemys[block.event.id];\n\t\t\tif (core.isset(enemy) && enemy.notBomb) continue;\n\t\t\tif (block.x==core.nextX() && block.y==core.nextY())\n\t\t\t\tids.push(i);\n\t\t\telse\n\t\t\t\tid2s.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\treturn true;\n\t}\n\telse if (id2s.length==1) {\n\t\tcore.status.event.ui = id2s;\n\t\treturn true;\n\t}\n\treturn false;\n})();",
 		"earthquake": "(function () {\n\tvar able=false;\n\tvar ids = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (core.isset(block.event) && !block.disable &&\n\t\t\t(block.event.canBreak || block.event.id == 'yellowWall' || block.event.id == 'blueWall' || block.event.id == 'whiteWall')) { // 能炸的墙壁\n\t\t\tids.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\table=true;\n\t}\n\treturn able;\n})();",
-		"centerFly": "(function () {\n\tvar toX = (core.bigmap.width||13)-1-core.getHeroLoc('x'), toY = (core.bigmap.height||13)-1-core.getHeroLoc('y');\n\tvar id = core.getBlockId(toX, toY);\n\treturn id == null;\n})();",
-		"upFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index<core.floorIds.length-1) {\n\t\tvar toId = core.floorIds[index+1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width||13, mh = core.floors[toId].height||13;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
-		"downFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index>0) {\n\t\tvar toId = core.floorIds[index-1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width||13, mh = core.floors[toId].height||13;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
+		"centerFly": "(function () {\n\tvar toX = core.bigmap.width-1-core.getHeroLoc('x'), toY = core.bigmap.height-1-core.getHeroLoc('y');\n\tvar id = core.getBlockId(toX, toY);\n\treturn id == null;\n})();",
+		"upFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index<core.floorIds.length-1) {\n\t\tvar toId = core.floorIds[index+1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width, mh = core.floors[toId].height;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
+		"downFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index>0) {\n\t\tvar toId = core.floorIds[index-1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width, mh = core.floors[toId].height;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
 		"snow": "(function () {\n\tvar ids = [], id2s = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (core.isset(block.event) && !block.disable && block.event.id == 'lava' && core.nearHero(block.x, block.y)) {\n\t\t\tif (core.flags.snowFourDirections || (block.x == core.nextX() && block.y == core.nextY()))\n\t\t\t\tids.push(i);\n\t\t\telse id2s.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\treturn true;\n\t}\n\tif (id2s.length==1) {\n\t\tcore.status.event.ui = id2s;\n\t\treturn true;\n\t}\n\treturn false;\n})();",
 		"bigKey": "(function() {\n\tvar able=false, ids = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (core.isset(block.event) && !block.disable && block.event.id == 'yellowDoor') {\n\t\t\tids.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\table=true;\n\t}\n\treturn able;\n})();",
 		"poisonWine": "core.hasFlag('poison');",