diff --git a/_docs/api.md b/_docs/api.md
index 2bfd3918..3f40d96f 100644
--- a/_docs/api.md
+++ b/_docs/api.md
@@ -503,6 +503,13 @@ registerResize: fn(name: string, func: fn(obj: ?))
 name: 名称，可供注销使用
 func: 可以是一个函数，或者是插件中的函数名；可以接受obj参数，详见resize函数。
 
+registerWeather: fn(name: string, initFunc: fn(level: number), frameFunc?: fn(timestamp: number, level: number))
+注册一个天气
+name: 要注册的天气名
+initFunc: 当切换到此天气时的初始化；接受level（天气等级）为参数；可用于创建多个节点（如初始化雪花）
+frameFunc: 每帧的天气效果变化；可接受timestamp（从页面加载完毕到当前所经过的时间）和level（天气等级）作为参数
+天气应当仅在weather层进行绘制，推荐使用core.animateFrame.weather.nodes用于节点信息。
+
 removeFlag: fn(name: string)
 删除某个flag/变量
 
@@ -698,6 +705,9 @@ unregisterReplayAction: fn(name: string)
 unregisterResize: fn(name: string)
 注销一个resize函数
 
+unregisterWeather: fn(name: string)
+注销一个天气
+
 updateCheckBlock: fn(floorId?: string)
 更新领域、夹击、阻击的伤害地图
 
diff --git a/_docs/script.md b/_docs/script.md
index 3ba53acd..3c94be54 100644
--- a/_docs/script.md
+++ b/_docs/script.md
@@ -480,6 +480,53 @@ core.registerReplayAction('commonEvent', function (action) {
 });
 ```
 
+### registerWeather
+
+```
+registerWeather: fn(name: string, initFunc: fn(level: number), frameFunc?: fn(timestamp: number, level: number))
+注册一个天气
+name: 要注册的天气名
+initFunc: 当切换到此天气时的初始化；接受level（天气等级）为参数；可用于创建多个节点（如初始化雪花）
+frameFunc: 每帧的天气效果变化；可接受timestamp（从页面加载完毕到当前所经过的时间）和level（天气等级）作为参数
+天气应当仅在weather层进行绘制，推荐使用core.animateFrame.weather.nodes用于节点信息。
+```
+
+`registerWeather`允许你注册一个天气。
+
+在游戏时，楼层属性中可以设置天气如 `["snow", 5]`，或者脚本 `core.setWeather("snow", 5)` 来切换天气。
+
+下面是一个例子：
+
+```js
+// 注册一个”血“天气，每200ms就随机在界面上的绘制红色斑点
+core.registerWeather('blood', function (level) {
+    // 切换到此天气时应当执行的脚本吗，如播放一个音效
+    core.playSound('blood.mp3');
+}, function (timestamp, level) {
+    // 我们希望每200ms就界面上随机绘制 level^2 个红点，半径在0~32像素之间
+
+    // 检查是否经过了200ms
+    if (timestamp - core.animateFrame.weather.time < 200) return;
+    // 当且仅当在weather层上绘制
+    core.clearMap('weather');
+    for (var i = 0; i < level * level; ++i) {
+        // 随机界面中的一个点，半径在0~32之间
+        var px = Math.random() * core.__PIXELS__;
+        var py = Math.random() * core.__PIXELS__;
+        var r = Math.random() * 32;
+        core.fillCircle('weather', px, py, r, 'red');
+    }
+    // 设置本次天气调用的时间
+    core.animateFrame.weather.time = timestamp;
+});
+```
+
+值得注意的是，天气当且仅当在`weather`层进行绘制，推荐使用或设置`core.animateFrame.weather.time`作为上次天气调用的时间避免太过于频繁的调用。
+
+推荐使用`core.animateFrame.weather.nodes`来存储天气的节点，这样会在取消天气时自动被移除。
+
+样板的云`cloud`和雾`fog`均由多个图片叠加移动实现；如果你想实现类似效果，可直接使用`core.control.__animateFrame_weather_image`作为`frameFunc`，详见样板的云雾实现。
+
 ### registerSystemEvent
 
 ```
diff --git a/_server/CodeMirror/defs.js b/_server/CodeMirror/defs.js
index 8d522deb..f8c363e8 100644
--- a/_server/CodeMirror/defs.js
+++ b/_server/CodeMirror/defs.js
@@ -2324,6 +2324,10 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
           "!doc": "注销一个录像行为", 
           "!type": "fn(name: string)"
         }, 
+        "unregisterWeather": {
+          "!doc": "注销一个天气",
+          "!type": "fn(name: string)"
+        },
         "setBuff": {
           "!doc": "设置主角某个属性的百分比修正倍率，初始值为1，<br/>倍率存放在flag: '__'+name+'_buff__' 中<br/>例如：core.setBuff('atk', 0.5); // 主角能发挥出的攻击力减半<br/>name: 属性的英文名，请注意只能用于数值类属性哦，否则随后的乘法会得到NaN<br/>value: 新的百分比修正倍率，不填（效果上）视为1", 
           "!type": "fn(name: string, value: number)"
@@ -2460,6 +2464,10 @@ var terndefs_f6783a0a_522d_417e_8407_94c67b692e50 = [
           "!doc": "注册一个resize函数<br/>name: 名称，可供注销使用<br/>func: 可以是一个函数，或者是插件中的函数名；可以接受obj参数，详见resize函数。", 
           "!type": "fn(name: string, func: fn(obj: ?))"
         }, 
+        "registerWeather": {
+          "!doc": "注册一个天气<br/>name: 要注册的天气名<br/>initFunc: 当切换到此天气时的初始化；接受level（天气等级）为参数；可用于创建多个节点（如初始化雪花）<br/>frameFunc: 每帧的天气效果变化；可接受timestamp（从页面加载完毕到当前所经过的时间）和level（天气等级）作为参数<br/>天气应当仅在weather层进行绘制，推荐使用core.animateFrame.weather.nodes用于节点信息。",
+          "!type": "fn(name: string, initFunc: fn(level: number), frameFunc?: fn( timestamp: number, level: number))"
+        },
         "stopReplay": {
           "!doc": "停止播放", 
           "!type": "fn(force?: bool)"
diff --git a/libs/control.js b/libs/control.js
index e4b899bb..913b5b29 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -16,6 +16,7 @@ control.prototype._init = function () {
     this.controldata = functions_d6ad677b_427a_4623_b50f_a445a3b0ef8a.control;
     this.renderFrameFuncs = [];
     this.replayActions = [];
+    this.weathers = {};
     this.resizes = [];
     // --- 注册系统的animationFrame
     this.registerAnimationFrame("totalTime", false, this._animationFrame_totalTime);
@@ -26,6 +27,12 @@ control.prototype._init = function () {
     this.registerAnimationFrame("weather", true, this._animationFrame_weather);
     this.registerAnimationFrame("tip", true, this._animateFrame_tip);
     this.registerAnimationFrame("parallelDo", false, this._animationFrame_parallelDo);
+    // --- 注册系统的天气
+    this.registerWeather("rain", this._weather_rain, this._animationFrame_weather_rain);
+    this.registerWeather("snow", this._weather_snow, this._animationFrame_weather_snow);
+    this.registerWeather("fog", this._weather_fog, this.__animateFrame_weather_image);
+    this.registerWeather("cloud", this._weather_cloud, this.__animateFrame_weather_image);
+    this.registerWeather("sun", this._weather_sun, this._animationFrame_weather_sun);
     // --- 注册系统的replay
     this.registerReplayAction("move", this._replayAction_move);
     this.registerReplayAction("item", this._replayAction_item);
@@ -199,13 +206,19 @@ control.prototype._animationFrame_heroMoving = function (timestamp) {
 }
 
 control.prototype._animationFrame_weather = function (timestamp) {
-    var weather = core.animateFrame.weather;
-    if (timestamp - weather.time <= 30 || !core.dymCanvas.weather) return;
-    core.control["_animationFrame_weather_"+weather.type]();
-    weather.time = timestamp;
+    var weather = core.animateFrame.weather, type = weather.type;
+    if (!core.dymCanvas.weather || !core.control.weathers[type] || !core.control.weathers[type].frameFunc) return;
+    try {
+        core.doFunc(core.control.weathers[type].frameFunc, core.control, timestamp, core.animateFrame.weather.level);
+    } catch (e) {
+        main.log(e);
+        main.log("ERROR in weather["+type+"]：已自动注销该项。");
+        core.unregisterWeather(type);
+    }
 }
 
-control.prototype._animationFrame_weather_rain = function () {
+control.prototype._animationFrame_weather_rain = function (timestamp, level) {
+    if (timestamp - core.animateFrame.weather.time < 30) return;
     var ctx = core.dymCanvas.weather, ox = core.bigmap.offsetX, oy = core.bigmap.offsetY;
     core.clearMap('weather');
     ctx.strokeStyle = 'rgba(174,194,224,0.8)';
@@ -228,9 +241,11 @@ control.prototype._animationFrame_weather_rain = function () {
     });
 
     ctx.fill();
+    core.animateFrame.weather.time = timestamp;
 }
 
-control.prototype._animationFrame_weather_snow = function () {
+control.prototype._animationFrame_weather_snow = function (timestamp, level) {
+    if (timestamp - core.animateFrame.weather.time < 30) return;
     var ctx = core.dymCanvas.weather, ox = core.bigmap.offsetX, oy = core.bigmap.offsetY;
     core.clearMap('weather');
     ctx.fillStyle = "rgba(255, 255, 255, 0.8)";
@@ -260,11 +275,15 @@ control.prototype._animationFrame_weather_snow = function () {
         }
     });
     ctx.fill();
+    core.animateFrame.weather.time = timestamp;
 }
 
-control.prototype.__animateFrame_weather_image = function (image) {
-    if (!image) return;
+control.prototype.__animateFrame_weather_image = function (timestamp, level) {
+    if (timestamp - core.animateFrame.weather.time < 30) return;
     var node = core.animateFrame.weather.nodes[0];
+    var image = node.image;
+    if (!image) return;
+    core.clearMap('weather');
     core.setAlpha('weather', node.level / 500);
     var wind = 1.5;
     var width = image.width, height = image.height;
@@ -296,20 +315,18 @@ control.prototype.__animateFrame_weather_image = function (image) {
         }
     }
     core.setAlpha('weather',1);
+    core.animateFrame.weather.time = timestamp;
 }
 
-control.prototype._animationFrame_weather_fog = function () {
-    core.clearMap('weather');
-    this.__animateFrame_weather_image(core.animateFrame.weather.fog);
-}
-
-control.prototype._animationFrame_weather_cloud = function () {
-    core.clearMap('weather');
-    this.__animateFrame_weather_image(core.animateFrame.weather.cloud);
-}
-
-control.prototype._animationFrame_weather_sun = function () {
-    // do nothing here.
+control.prototype._animationFrame_weather_sun = function (timestamp, level) {
+    if (timestamp - core.animateFrame.weather.time < 30) return;
+    var node = core.animateFrame.weather.nodes[0];
+    var opacity = node.opacity + node.delta;
+    if (opacity > level / 10 + 0.3 || opacity < level / 10 - 0.3)
+        node.delta = -node.delta;
+    node.opacity = opacity;
+    core.setOpacity('weather', core.clamp(opacity, 0, 1));
+    core.animateFrame.weather.time = timestamp;
 }
 
 control.prototype._animateFrame_tip = function (timestamp) {
@@ -2542,7 +2559,7 @@ control.prototype.getMappedName = function (name) {
 ////// 更改天气效果 //////
 control.prototype.setWeather = function (type, level) {
     // 非雨雪
-    if (type == null) {
+    if (type == null || !this.weathers[type]) {
         core.deleteCanvas('weather')
         core.animateFrame.weather.type = null;
         core.animateFrame.weather.nodes = [];
@@ -2555,72 +2572,98 @@ control.prototype.setWeather = function (type, level) {
 
     // 计算当前的宽高
     core.createCanvas('weather', 0, 0, core.__PIXELS__, core.__PIXELS__, 80);
+    core.setOpacity('weather', 1.0);
     core.animateFrame.weather.type = type;
     core.animateFrame.weather.level = level;
     core.animateFrame.weather.nodes = [];
-    this._setWeather_createNodes(type, level);
+    try {
+        core.doFunc(this.weathers[type].initFunc, this, level);
+    } catch (e) {
+        main.log(e);
+        main.log("ERROR in weather["+type+"]：已自动注销该项。");
+        core.unregisterWeather(type);
+    }
 }
 
-control.prototype._setWeather_createNodes = function (type, level) {
-    var number = level * parseInt(20*core.bigmap.width*core.bigmap.height/(core.__SIZE__*core.__SIZE__));
-    switch (type) {
-        case 'rain':
-            for (var a=0;a<number;a++) {
-                core.animateFrame.weather.nodes.push({
-                    'x': Math.random()*core.bigmap.width*32,
-                    'y': Math.random()*core.bigmap.height*32,
-                    'l': Math.random() * 2.5,
-                    'xs': -4 + Math.random() * 4 + 2,
-                    'ys': Math.random() * 10 + 10
-                })
-            }
-            break;
-        case 'snow':
-            for (var a=0;a<number;a++) {
-                core.animateFrame.weather.nodes.push({
-                    'x': Math.random()*core.bigmap.width*32,
-                    'y': Math.random()*core.bigmap.height*32,
-                    'r': Math.random() * 5 + 1,
-                    'd': Math.random() * Math.min(level, 200),
-                })
-            }
-            break;
-        case 'fog':
-            if (core.animateFrame.weather.fog) {
-                core.animateFrame.weather.nodes = [{
-                    'level': number,
-                    'x': 0,
-                    'y': -core.__PIXELS__ / 2,
-                    'dx': -Math.random() * 1.5,
-                    'dy': Math.random(),
-                    'delta': 0.001,
-                }];
-            }
-            break;
-        case 'cloud':
-            if (core.animateFrame.weather.cloud) {
-                core.animateFrame.weather.nodes = [{
-                    'level': number,
-                    'x': 0,
-                    'y': -core.__PIXELS__ / 2,
-                    'dx': -Math.random() * 1.5,
-                    'dy': Math.random(),
-                    'delta': 0.001,
-                }];
-            }
-            break;
-        case 'sun':
-            if (core.animateFrame.weather.sun) {
-                // 直接绘制
-                core.clearMap('weather');
-                core.setAlpha('weather', level / 10);
-                core.drawImage('weather', core.animateFrame.weather.sun, 0, 0, core.animateFrame.weather.sun.width, core.animateFrame.weather.sun.height, 0, 0, core.__PIXELS__, core.__PIXELS__);
-                core.setAlpha('weather', 1);
-            }
-            break;
+////// 注册一个天气 //////
+// name为天气类型，如 sun, rain, snow 等
+// initFunc 为设置为此天气时的初始化，接受level参数
+// frameFunc 为该天气下每帧的效果，接受和timestamp参数（从页面加载完毕到当前经过的时间）
+control.prototype.registerWeather = function (name, initFunc, frameFunc) {
+    this.unregisterWeather(name);
+    this.weathers[name] = { initFunc: initFunc, frameFunc: frameFunc };
+}
+
+////// 取消注册一个天气 //////
+control.prototype.unregisterWeather = function (name) {
+    delete this.weathers[name];
+    if (core.animateFrame.weather.type == name) {
+        this.setWeather(null);
     }
 }
 
+control.prototype._weather_rain = function (level) {
+    var number = level * parseInt(20*core.bigmap.width*core.bigmap.height/(core.__SIZE__*core.__SIZE__));
+    for (var a=0;a<number;a++) {
+        core.animateFrame.weather.nodes.push({
+            'x': Math.random()*core.bigmap.width*32,
+            'y': Math.random()*core.bigmap.height*32,
+            'l': Math.random() * 2.5,
+            'xs': -4 + Math.random() * 4 + 2,
+            'ys': Math.random() * 10 + 10
+        })
+    }
+}
+
+control.prototype._weather_snow = function (level) {
+    var number = level * parseInt(20*core.bigmap.width*core.bigmap.height/(core.__SIZE__*core.__SIZE__));
+    for (var a=0;a<number;a++) {
+        core.animateFrame.weather.nodes.push({
+            'x': Math.random()*core.bigmap.width*32,
+            'y': Math.random()*core.bigmap.height*32,
+            'r': Math.random() * 5 + 1,
+            'd': Math.random() * Math.min(level, 200),
+        })
+    }
+}
+
+control.prototype._weather_fog = function (level) {
+    if (!core.animateFrame.weather.fog) return;
+    var number = level * parseInt(20*core.bigmap.width*core.bigmap.height/(core.__SIZE__*core.__SIZE__));
+    core.animateFrame.weather.nodes = [{
+        'image': core.animateFrame.weather.fog,
+        'level': number,
+        'x': 0,
+        'y': -core.__PIXELS__ / 2,
+        'dx': -Math.random() * 1.5,
+        'dy': Math.random(),
+        'delta': 0.001,
+    }];
+}
+
+control.prototype._weather_cloud = function (level) {
+    if (!core.animateFrame.weather.cloud) return;
+    var number = level * parseInt(20*core.bigmap.width*core.bigmap.height/(core.__SIZE__*core.__SIZE__));
+    core.animateFrame.weather.nodes = [{
+        'image': core.animateFrame.weather.cloud,
+        'level': number,
+        'x': 0,
+        'y': -core.__PIXELS__ / 2,
+        'dx': -Math.random() * 1.5,
+        'dy': Math.random(),
+        'delta': 0.001,
+    }];
+}
+
+control.prototype._weather_sun = function (level) {
+    if (!core.animateFrame.weather.sun) return;
+    // 直接绘制
+    core.clearMap('weather');
+    core.drawImage('weather', core.animateFrame.weather.sun, 0, 0, core.animateFrame.weather.sun.width, core.animateFrame.weather.sun.height, 0, 0, core.__PIXELS__, core.__PIXELS__);
+    core.setOpacity('weather', level / 10);
+    core.animateFrame.weather.nodes = [{opacity: level / 10, delta: 0.01}];
+}
+
 ////// 更改画面色调 //////
 control.prototype.setCurtain = function(color, time, callback) {
     if (time == null) time=750;
diff --git a/libs/events.js b/libs/events.js
index 17b065ff..32d73248 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -460,6 +460,7 @@ events.prototype.battle = function (id, x, y, force, callback) {
     if (!id) return core.clearContinueAutomaticRoute(callback);
     // 非强制战斗
     if (!core.enemys.canBattle(id, x, y) && !force && !core.status.event.id) {
+        core.stopSound();
         core.playSound('操作失败');
         core.drawTip("你打不过此怪物！", id);
         return core.clearContinueAutomaticRoute(callback);
diff --git a/runtime.d.ts b/runtime.d.ts
index d669ba09..0f36634a 100644
--- a/runtime.d.ts
+++ b/runtime.d.ts
@@ -559,6 +559,12 @@ declare class control {
      */
     setWeather(type?: 'rain' | 'snow' | 'sun' | 'fog' | 'cloud', level?: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10): void
     
+    /** 注册一个天气 */
+    registerWeather(name: string, initFunc: (level: number) => void, frameFunc?: (timestamp: number, level: number) => void): void
+
+    /** 注销一个天气 */
+    unregisterWeather(name: string) : void;
+
     /**
      * 更改画面色调，不计入存档。如需长期生效请使用core.events._action_setCurtain()函数
      * @example core.setCurtain(); // 恢复画面色调，用时四分之三秒