diff --git a/particle/libsrc/bin/particle/particle.d.ts b/particle/libsrc/bin/particle/particle.d.ts
index ebbc435f..9de534f2 100644
--- a/particle/libsrc/bin/particle/particle.d.ts
+++ b/particle/libsrc/bin/particle/particle.d.ts
@@ -293,5 +293,31 @@ declare module particle {
         initParticle(particle: Particle): void;
         private static getValue(base, variance);
         advanceParticle(particle: Particle, dt: number): void;
+        setEmitterXVariance(emitterXVariance: number): void;
+        setEmitterYVariance(emitterYVariance: number): void;
+        setLifespan(lifespan: number): void;
+        setLifespanVariance(lifespanVariance: number): void;
+        setStartSize(startSize: number): void;
+        setStartSizeVariance(startSizeVariance: number): void;
+        setEndSize(endSize: number): void;
+        setEndSizeVariance(endSizeVariance: number): void;
+        setEmitAngle(emitAngle: number): void;
+        setEmitAngleVariance(emitAngleVariance: number): void;
+        setStartRotation(startRotation: number): void;
+        setStartRotationVariance(startRotationVariance: number): void;
+        setEndRotation(endRotation: number): void;
+        setEndRotationVariance(endRotationVariance: number): void;
+        setSpeed(speed: number): void;
+        setSpeedVariance(speedVariance: number): void;
+        setGravityX(gravityX: number): void;
+        setGravityY(gravityY: number): void;
+        setRadialAcceleration(radialAcceleration: number): void;
+        setRadialAccelerationVariance(radialAccelerationVariance: number): void;
+        setTangentialAcceleration(tangentialAcceleration: number): void;
+        setTangentialAccelerationVariance(tangentialAccelerationVariance: number): void;
+        setStartAlpha(startAlpha: number): void;
+        setStartAlphaVariance(startAlphaVariance: number): void;
+        setEndAlpha(endAlpha: number): void;
+        setEndAlphaVariance(endAlphaVariance: number): void;
     }
 }
diff --git a/particle/libsrc/bin/particle/particle.js b/particle/libsrc/bin/particle/particle.js
index baf91922..67ef1a05 100644
--- a/particle/libsrc/bin/particle/particle.js
+++ b/particle/libsrc/bin/particle/particle.js
@@ -619,6 +619,85 @@ var particle;
             locParticle.rotation += locParticle.rotationDelta * dt * 1000;
             locParticle.alpha += locParticle.alphaDelta * dt * 1000;
         };
+        //增加设置重力系统参数的方法，方便动态改变参数
+        p.setEmitterXVariance = function (emitterXVariance) {
+            this.emitterXVariance = emitterXVariance;
+        };
+        p.setEmitterYVariance = function (emitterYVariance) {
+            this.emitterYVariance = emitterYVariance;
+        };
+        p.setLifespan = function (lifespan) {
+            this.lifespan = lifespan;
+        };
+        p.setLifespanVariance = function (lifespanVariance) {
+            this.lifespanVariance = lifespanVariance;
+        };
+        p.setStartSize = function (startSize) {
+            this.startSize = startSize;
+        };
+        p.setStartSizeVariance = function (startSizeVariance) {
+            this.startSizeVariance = startSizeVariance;
+        };
+        p.setEndSize = function (endSize) {
+            this.endSize = endSize;
+        };
+        p.setEndSizeVariance = function (endSizeVariance) {
+            this.endSizeVariance = endSizeVariance;
+        };
+        p.setEmitAngle = function (emitAngle) {
+            this.emitAngle = emitAngle;
+        };
+        p.setEmitAngleVariance = function (emitAngleVariance) {
+            this.emitAngleVariance = emitAngleVariance;
+        };
+        p.setStartRotation = function (startRotation) {
+            this.startRotation = startRotation;
+        };
+        p.setStartRotationVariance = function (startRotationVariance) {
+            this.startRotationVariance = startRotationVariance;
+        };
+        p.setEndRotation = function (endRotation) {
+            this.endRotation = endRotation;
+        };
+        p.setEndRotationVariance = function (endRotationVariance) {
+            this.endRotationVariance = endRotationVariance;
+        };
+        p.setSpeed = function (speed) {
+            this.speed = speed;
+        };
+        p.setSpeedVariance = function (speedVariance) {
+            this.speedVariance = speedVariance;
+        };
+        p.setGravityX = function (gravityX) {
+            this.gravityX = gravityX;
+        };
+        p.setGravityY = function (gravityY) {
+            this.gravityY = gravityY;
+        };
+        p.setRadialAcceleration = function (radialAcceleration) {
+            this.radialAcceleration = radialAcceleration;
+        };
+        p.setRadialAccelerationVariance = function (radialAccelerationVariance) {
+            this.radialAccelerationVariance = radialAccelerationVariance;
+        };
+        p.setTangentialAcceleration = function (tangentialAcceleration) {
+            this.tangentialAcceleration = tangentialAcceleration;
+        };
+        p.setTangentialAccelerationVariance = function (tangentialAccelerationVariance) {
+            this.tangentialAccelerationVariance = tangentialAccelerationVariance;
+        };
+        p.setStartAlpha = function (startAlpha) {
+            this.startAlpha = startAlpha;
+        };
+        p.setStartAlphaVariance = function (startAlphaVariance) {
+            this.startAlphaVariance = startAlphaVariance;
+        };
+        p.setEndAlpha = function (endAlpha) {
+            this.endAlpha = endAlpha;
+        };
+        p.setEndAlphaVariance = function (endAlphaVariance) {
+            this.endAlphaVariance = endAlphaVariance;
+        };
         return GravityParticleSystem;
     }(particle_1.ParticleSystem));
     particle_1.GravityParticleSystem = GravityParticleSystem;
diff --git a/particle/libsrc/bin/particle/particle.min.js b/particle/libsrc/bin/particle/particle.min.js
index 3ed476df..b0c3f883 100644
--- a/particle/libsrc/bin/particle/particle.min.js
+++ b/particle/libsrc/bin/particle/particle.min.js
@@ -1 +1 @@
-var particle;!function(t){var e=function(){function t(){this.reset()}var e=(__define,t),i=e.prototype;return i.reset=function(){this.x=0,this.y=0,this.scale=1,this.rotation=0,this.alpha=1,this.currentTime=0,this.totalTime=1e3},t}();t.Particle=e,egret.registerClass(e,"particle.Particle")}(particle||(particle={}));var particle;!function(t){var e=function(e){function i(t,i){e.call(this),this._pool=[],this.frameTime=0,this.particles=[],this._emitterX=0,this._emitterY=0,this.emissionTime=-1,this.maxParticles=200,this.numParticles=0,this.particleClass=null,this.particleMeasureRect=new egret.Rectangle,this.transformForMeasure=new egret.Matrix,this.transformForRender=new egret.Matrix,this.setTransformNodeList=[],this.setAlphaNodeList=[],this.bitmapNodeList=[],this.emissionRate=i,this.texture=t,this.$renderNode=new egret.sys.GroupNode}__extends(i,e);var a=__define,r=i,s=r.prototype;return s.getParticle=function(){var e;return e=this._pool.length?this._pool.pop():this.particleClass?new this.particleClass:new t.Particle},s.removeParticle=function(t){var e=this.particles.indexOf(t);return-1!=e?(t.reset(),this.particles.splice(e,1),this._pool.push(t),this.numParticles--,!0):!1},s.initParticle=function(t){t.x=this.emitterX,t.y=this.emitterY,t.currentTime=0,t.totalTime=1e3},s.updateRelativeBounds=function(t){t?(null==this.relativeContentBounds&&(this.relativeContentBounds=new egret.Rectangle),this.relativeContentBounds.copyFrom(t),this.relativeContentBounds.x+=this.emitterX,this.relativeContentBounds.y+=this.emitterY):this.relativeContentBounds=null,this.mask=this.relativeContentBounds},a(s,"emitterBounds",function(){return this._emitterBounds},function(t){this._emitterBounds=t,this.updateRelativeBounds(t)}),a(s,"emitterX",function(){return this._emitterX},function(t){this._emitterX=t,this.updateRelativeBounds(this.emitterBounds)}),a(s,"emitterY",function(){return this._emitterY},function(t){this._emitterY=t,this.updateRelativeBounds(this.emitterBounds)}),s.start=function(t){void 0===t&&(t=-1),0!=this.emissionRate&&(this.emissionTime=t,egret.Ticker.getInstance().register(this.update,this))},s.stop=function(t){void 0===t&&(t=!1),this.emissionTime=0,t&&(this.clear(),egret.Ticker.getInstance().unregister(this.update,this))},s.update=function(t){if(-1==this.emissionTime||this.emissionTime>0){for(this.frameTime+=t;this.frameTime>0;)this.numParticles<this.maxParticles&&this.addOneParticle(),this.frameTime-=this.emissionRate;-1!=this.emissionTime&&(this.emissionTime-=t,this.emissionTime<0&&(this.emissionTime=0))}for(var e,i=0;i<this.numParticles;)e=this.particles[i],e.currentTime<e.totalTime?(this.advanceParticle(e,t),e.currentTime+=t,i++):this.removeParticle(e);this.$invalidateContentBounds(),0==this.numParticles&&0==this.emissionTime&&(egret.Ticker.getInstance().unregister(this.update,this),this.dispatchEventWith(egret.Event.COMPLETE))},s.$measureContentBounds=function(t){if(this.relativeContentBounds)return void t.copyFrom(this.relativeContentBounds);if(this.numParticles>0){for(var e,i=this.texture,a=Math.round(i.$getScaleBitmapWidth()),r=Math.round(i.$getScaleBitmapHeight()),s=egret.Rectangle.create(),n=0;n<this.numParticles;n++){e=this.particles[n],this.transformForMeasure.identity(),this.appendTransform(this.transformForMeasure,e.x,e.y,e.scale,e.scale,e.rotation,0,0,a/2,r/2),this.particleMeasureRect.setEmpty(),this.particleMeasureRect.width=a,this.particleMeasureRect.height=r;var h=egret.sys.Region.create();if(h.updateRegion(this.particleMeasureRect,this.transformForMeasure),0==n)s.setTo(h.minX,h.minY,h.maxX-h.minX,h.maxY-h.minY);else{var o=Math.min(s.x,h.minX),c=Math.min(s.y,h.minY),l=Math.max(s.right,h.maxX),m=Math.max(s.bottom,h.maxY);s.setTo(o,c,l-o,m-c)}egret.sys.Region.release(h)}t.setTo(s.x,s.y,s.width,s.height),egret.Rectangle.release(s)}},s.setCurrentParticles=function(t){for(var e=this.numParticles;t>e&&this.numParticles<this.maxParticles;e++)this.addOneParticle()},s.changeTexture=function(t){this.texture!=t&&(this.texture=t)},s.clear=function(){for(;this.particles.length;)this.removeParticle(this.particles[0]);this.numParticles=0},s.addOneParticle=function(){var t=this.getParticle();this.initParticle(t),t.totalTime>0&&(this.particles.push(t),this.numParticles++)},s.advanceParticle=function(t,e){t.y-=e/6},s.$render=function(){if(this.numParticles>0)for(var t,e=this.texture,i=Math.round(e.$getScaleBitmapWidth()),a=Math.round(e.$getScaleBitmapHeight()),r=e._offsetX,s=e._offsetY,n=e._bitmapX,h=e._bitmapY,o=e._bitmapWidth,c=e._bitmapHeight,l=0;l<this.numParticles;l++){t=this.particles[l],this.transformForRender.identity(),this.transformForRender.copyFrom(this.$renderNode.renderMatrix),this.appendTransform(this.transformForRender,t.x,t.y,t.scale,t.scale,t.rotation,0,0,i/2,a/2);var m,d,u;this.setTransformNodeList[l]||(this.setTransformNodeList[l]=new egret.sys.SetTransformNode,this.setAlphaNodeList[l]=new egret.sys.SetAlphaNode,this.bitmapNodeList[l]=new egret.sys.BitmapNode,this.$renderNode.addNode(this.setTransformNodeList[l]),this.$renderNode.addNode(this.setAlphaNodeList[l]),this.$renderNode.addNode(this.bitmapNodeList[l])),m=this.setTransformNodeList[l],d=this.setAlphaNodeList[l],u=this.bitmapNodeList[l],m.setTransform(this.transformForRender.a,this.transformForRender.b,this.transformForRender.c,this.transformForRender.d,this.transformForRender.tx,this.transformForRender.ty),d.setAlpha(t.alpha),u.image=e._bitmapData,u.drawImage(n,h,o,c,r,s,i,a)}},s.appendTransform=function(t,e,i,a,r,s,n,h,o,c){if(s%360)var l=s,m=egret.NumberUtils.cos(l),d=egret.NumberUtils.sin(l);else m=1,d=0;return n||h?(t.append(egret.NumberUtils.cos(h),egret.NumberUtils.sin(h),-egret.NumberUtils.sin(n),egret.NumberUtils.cos(n),e,i),t.append(m*a,d*a,-d*r,m*r,0,0)):t.append(m*a,d*a,-d*r,m*r,e,i),(o||c)&&(t.tx-=o*t.a+c*t.c,t.ty-=o*t.b+c*t.d),t},i}(egret.DisplayObject);t.ParticleSystem=e,egret.registerClass(e,"particle.ParticleSystem")}(particle||(particle={}));var particle;!function(t){var e=function(t){function e(){t.apply(this,arguments)}__extends(e,t);var i=(__define,e),a=i.prototype;return a.reset=function(){t.prototype.reset.call(this),this.startX=0,this.startY=0,this.velocityX=0,this.velocityY=0,this.radialAcceleration=0,this.tangentialAcceleration=0,this.rotationDelta=0,this.scaleDelta=0},e}(t.Particle);t.GravityParticle=e,egret.registerClass(e,"particle.GravityParticle")}(particle||(particle={}));var particle;!function(t){var e=function(e){function i(i,a){e.call(this,i,200),this.parseConfig(a),this.emissionRate=this.lifespan/this.maxParticles,this.particleClass=t.GravityParticle}__extends(i,e);var a=(__define,i),r=a.prototype;return r.parseConfig=function(t){function e(t){return"undefined"==typeof t?0:t}if(this.emitterX=e(t.emitter.x),this.emitterY=e(t.emitter.y),this.emitterXVariance=e(t.emitterVariance.x),this.emitterYVariance=e(t.emitterVariance.y),this.gravityX=e(t.gravity.x),this.gravityY=e(t.gravity.y),1==t.useEmitterRect){var i=new egret.Rectangle;i.x=e(t.emitterRect.x),i.y=e(t.emitterRect.y),i.width=e(t.emitterRect.width),i.height=e(t.emitterRect.height),this.emitterBounds=i}this.maxParticles=e(t.maxParticles),this.speed=e(t.speed),this.speedVariance=e(t.speedVariance),this.lifespan=Math.max(.01,e(t.lifespan)),this.lifespanVariance=e(t.lifespanVariance),this.emitAngle=e(t.emitAngle),this.emitAngleVariance=e(t.emitAngleVariance),this.startSize=e(t.startSize),this.startSizeVariance=e(t.startSizeVariance),this.endSize=e(t.endSize),this.endSizeVariance=e(t.endSizeVariance),this.startRotation=e(t.startRotation),this.startRotationVariance=e(t.startRotationVariance),this.endRotation=e(t.endRotation),this.endRotationVariance=e(t.endRotationVariance),this.radialAcceleration=e(t.radialAcceleration),this.radialAccelerationVariance=e(t.radialAccelerationVariance),this.tangentialAcceleration=e(t.tangentialAcceleration),this.tangentialAccelerationVariance=e(t.tangentialAccelerationVariance),this.startAlpha=e(t.startAlpha),this.startAlphaVariance=e(t.startAlphaVariance),this.endAlpha=e(t.endAlpha),this.endAlphaVariance=e(t.endAlphaVariance)},r.initParticle=function(t){var e=t,a=i.getValue(this.lifespan,this.lifespanVariance);if(e.currentTime=0,e.totalTime=a>0?a:0,!(0>=a)){e.x=i.getValue(this.emitterX,this.emitterXVariance),e.y=i.getValue(this.emitterY,this.emitterYVariance),e.startX=this.emitterX,e.startY=this.emitterY;var r=i.getValue(this.emitAngle,this.emitAngleVariance),s=i.getValue(this.speed,this.speedVariance);e.velocityX=s*egret.NumberUtils.cos(r),e.velocityY=s*egret.NumberUtils.sin(r),e.radialAcceleration=i.getValue(this.radialAcceleration,this.radialAccelerationVariance),e.tangentialAcceleration=i.getValue(this.tangentialAcceleration,this.tangentialAccelerationVariance);var n=i.getValue(this.startSize,this.startSizeVariance);.1>n&&(n=.1);var h=i.getValue(this.endSize,this.endSizeVariance);.1>h&&(h=.1);var o=this.texture.textureWidth;e.scale=n/o,e.scaleDelta=(h-n)/a/o;var c=i.getValue(this.startRotation,this.startRotationVariance),l=i.getValue(this.endRotation,this.endRotationVariance);e.rotation=c,e.rotationDelta=(l-c)/a;var m=i.getValue(this.startAlpha,this.startAlphaVariance),d=i.getValue(this.endAlpha,this.endAlphaVariance);e.alpha=m,e.alphaDelta=(d-m)/a}},i.getValue=function(t,e){return t+e*(2*Math.random()-1)},r.advanceParticle=function(t,e){var i=t;e/=1e3;var a=i.totalTime-i.currentTime;e=a>e?e:a,i.currentTime+=e;var r=i.x-i.startX,s=i.y-i.startY,n=Math.sqrt(r*r+s*s);.01>n&&(n=.01);var h=r/n,o=s/n,c=h,l=o;h*=i.radialAcceleration,o*=i.radialAcceleration;var m=c;c=-l*i.tangentialAcceleration,l=m*i.tangentialAcceleration,i.velocityX+=e*(this.gravityX+h+c),i.velocityY+=e*(this.gravityY+o+l),i.x+=i.velocityX*e,i.y+=i.velocityY*e,i.scale+=i.scaleDelta*e*1e3,i.rotation+=i.rotationDelta*e*1e3,i.alpha+=i.alphaDelta*e*1e3},i}(t.ParticleSystem);t.GravityParticleSystem=e,egret.registerClass(e,"particle.GravityParticleSystem")}(particle||(particle={}));
\ No newline at end of file
+var particle;!function(t){var e=function(){function t(){this.reset()}var e=(__define,t),i=e.prototype;return i.reset=function(){this.x=0,this.y=0,this.scale=1,this.rotation=0,this.alpha=1,this.currentTime=0,this.totalTime=1e3},t}();t.Particle=e,egret.registerClass(e,"particle.Particle")}(particle||(particle={}));var particle;!function(t){var e=function(e){function i(t,i){e.call(this),this._pool=[],this.frameTime=0,this.particles=[],this._emitterX=0,this._emitterY=0,this.emissionTime=-1,this.maxParticles=200,this.numParticles=0,this.particleClass=null,this.particleMeasureRect=new egret.Rectangle,this.transformForMeasure=new egret.Matrix,this.transformForRender=new egret.Matrix,this.setTransformNodeList=[],this.setAlphaNodeList=[],this.bitmapNodeList=[],this.emissionRate=i,this.texture=t,this.$renderNode=new egret.sys.GroupNode}__extends(i,e);var a=__define,r=i,s=r.prototype;return s.getParticle=function(){var e;return e=this._pool.length?this._pool.pop():this.particleClass?new this.particleClass:new t.Particle},s.removeParticle=function(t){var e=this.particles.indexOf(t);return-1!=e?(t.reset(),this.particles.splice(e,1),this._pool.push(t),this.numParticles--,!0):!1},s.initParticle=function(t){t.x=this.emitterX,t.y=this.emitterY,t.currentTime=0,t.totalTime=1e3},s.updateRelativeBounds=function(t){t?(null==this.relativeContentBounds&&(this.relativeContentBounds=new egret.Rectangle),this.relativeContentBounds.copyFrom(t),this.relativeContentBounds.x+=this.emitterX,this.relativeContentBounds.y+=this.emitterY):this.relativeContentBounds=null,this.mask=this.relativeContentBounds},a(s,"emitterBounds",function(){return this._emitterBounds},function(t){this._emitterBounds=t,this.updateRelativeBounds(t)}),a(s,"emitterX",function(){return this._emitterX},function(t){this._emitterX=t,this.updateRelativeBounds(this.emitterBounds)}),a(s,"emitterY",function(){return this._emitterY},function(t){this._emitterY=t,this.updateRelativeBounds(this.emitterBounds)}),s.start=function(t){void 0===t&&(t=-1),0!=this.emissionRate&&(this.emissionTime=t,egret.Ticker.getInstance().register(this.update,this))},s.stop=function(t){void 0===t&&(t=!1),this.emissionTime=0,t&&(this.clear(),egret.Ticker.getInstance().unregister(this.update,this))},s.update=function(t){if(-1==this.emissionTime||this.emissionTime>0){for(this.frameTime+=t;this.frameTime>0;)this.numParticles<this.maxParticles&&this.addOneParticle(),this.frameTime-=this.emissionRate;-1!=this.emissionTime&&(this.emissionTime-=t,this.emissionTime<0&&(this.emissionTime=0))}for(var e,i=0;i<this.numParticles;)e=this.particles[i],e.currentTime<e.totalTime?(this.advanceParticle(e,t),e.currentTime+=t,i++):this.removeParticle(e);this.$invalidateContentBounds(),0==this.numParticles&&0==this.emissionTime&&(egret.Ticker.getInstance().unregister(this.update,this),this.dispatchEventWith(egret.Event.COMPLETE))},s.$measureContentBounds=function(t){if(this.relativeContentBounds)return void t.copyFrom(this.relativeContentBounds);if(this.numParticles>0){for(var e,i=this.texture,a=Math.round(i.$getScaleBitmapWidth()),r=Math.round(i.$getScaleBitmapHeight()),s=egret.Rectangle.create(),n=0;n<this.numParticles;n++){e=this.particles[n],this.transformForMeasure.identity(),this.appendTransform(this.transformForMeasure,e.x,e.y,e.scale,e.scale,e.rotation,0,0,a/2,r/2),this.particleMeasureRect.setEmpty(),this.particleMeasureRect.width=a,this.particleMeasureRect.height=r;var c=egret.sys.Region.create();if(c.updateRegion(this.particleMeasureRect,this.transformForMeasure),0==n)s.setTo(c.minX,c.minY,c.maxX-c.minX,c.maxY-c.minY);else{var o=Math.min(s.x,c.minX),h=Math.min(s.y,c.minY),l=Math.max(s.right,c.maxX),m=Math.max(s.bottom,c.maxY);s.setTo(o,h,l-o,m-h)}egret.sys.Region.release(c)}t.setTo(s.x,s.y,s.width,s.height),egret.Rectangle.release(s)}},s.setCurrentParticles=function(t){for(var e=this.numParticles;t>e&&this.numParticles<this.maxParticles;e++)this.addOneParticle()},s.changeTexture=function(t){this.texture!=t&&(this.texture=t)},s.clear=function(){for(;this.particles.length;)this.removeParticle(this.particles[0]);this.numParticles=0},s.addOneParticle=function(){var t=this.getParticle();this.initParticle(t),t.totalTime>0&&(this.particles.push(t),this.numParticles++)},s.advanceParticle=function(t,e){t.y-=e/6},s.$render=function(){if(this.numParticles>0)for(var t,e=this.texture,i=Math.round(e.$getScaleBitmapWidth()),a=Math.round(e.$getScaleBitmapHeight()),r=e._offsetX,s=e._offsetY,n=e._bitmapX,c=e._bitmapY,o=e._bitmapWidth,h=e._bitmapHeight,l=0;l<this.numParticles;l++){t=this.particles[l],this.transformForRender.identity(),this.transformForRender.copyFrom(this.$renderNode.renderMatrix),this.appendTransform(this.transformForRender,t.x,t.y,t.scale,t.scale,t.rotation,0,0,i/2,a/2);var m,u,d;this.setTransformNodeList[l]||(this.setTransformNodeList[l]=new egret.sys.SetTransformNode,this.setAlphaNodeList[l]=new egret.sys.SetAlphaNode,this.bitmapNodeList[l]=new egret.sys.BitmapNode,this.$renderNode.addNode(this.setTransformNodeList[l]),this.$renderNode.addNode(this.setAlphaNodeList[l]),this.$renderNode.addNode(this.bitmapNodeList[l])),m=this.setTransformNodeList[l],u=this.setAlphaNodeList[l],d=this.bitmapNodeList[l],m.setTransform(this.transformForRender.a,this.transformForRender.b,this.transformForRender.c,this.transformForRender.d,this.transformForRender.tx,this.transformForRender.ty),u.setAlpha(t.alpha),d.image=e._bitmapData,d.drawImage(n,c,o,h,r,s,i,a)}},s.appendTransform=function(t,e,i,a,r,s,n,c,o,h){if(s%360)var l=s,m=egret.NumberUtils.cos(l),u=egret.NumberUtils.sin(l);else m=1,u=0;return n||c?(t.append(egret.NumberUtils.cos(c),egret.NumberUtils.sin(c),-egret.NumberUtils.sin(n),egret.NumberUtils.cos(n),e,i),t.append(m*a,u*a,-u*r,m*r,0,0)):t.append(m*a,u*a,-u*r,m*r,e,i),(o||h)&&(t.tx-=o*t.a+h*t.c,t.ty-=o*t.b+h*t.d),t},i}(egret.DisplayObject);t.ParticleSystem=e,egret.registerClass(e,"particle.ParticleSystem")}(particle||(particle={}));var particle;!function(t){var e=function(t){function e(){t.apply(this,arguments)}__extends(e,t);var i=(__define,e),a=i.prototype;return a.reset=function(){t.prototype.reset.call(this),this.startX=0,this.startY=0,this.velocityX=0,this.velocityY=0,this.radialAcceleration=0,this.tangentialAcceleration=0,this.rotationDelta=0,this.scaleDelta=0},e}(t.Particle);t.GravityParticle=e,egret.registerClass(e,"particle.GravityParticle")}(particle||(particle={}));var particle;!function(t){var e=function(e){function i(i,a){e.call(this,i,200),this.parseConfig(a),this.emissionRate=this.lifespan/this.maxParticles,this.particleClass=t.GravityParticle}__extends(i,e);var a=(__define,i),r=a.prototype;return r.parseConfig=function(t){function e(t){return"undefined"==typeof t?0:t}if(this.emitterX=e(t.emitter.x),this.emitterY=e(t.emitter.y),this.emitterXVariance=e(t.emitterVariance.x),this.emitterYVariance=e(t.emitterVariance.y),this.gravityX=e(t.gravity.x),this.gravityY=e(t.gravity.y),1==t.useEmitterRect){var i=new egret.Rectangle;i.x=e(t.emitterRect.x),i.y=e(t.emitterRect.y),i.width=e(t.emitterRect.width),i.height=e(t.emitterRect.height),this.emitterBounds=i}this.maxParticles=e(t.maxParticles),this.speed=e(t.speed),this.speedVariance=e(t.speedVariance),this.lifespan=Math.max(.01,e(t.lifespan)),this.lifespanVariance=e(t.lifespanVariance),this.emitAngle=e(t.emitAngle),this.emitAngleVariance=e(t.emitAngleVariance),this.startSize=e(t.startSize),this.startSizeVariance=e(t.startSizeVariance),this.endSize=e(t.endSize),this.endSizeVariance=e(t.endSizeVariance),this.startRotation=e(t.startRotation),this.startRotationVariance=e(t.startRotationVariance),this.endRotation=e(t.endRotation),this.endRotationVariance=e(t.endRotationVariance),this.radialAcceleration=e(t.radialAcceleration),this.radialAccelerationVariance=e(t.radialAccelerationVariance),this.tangentialAcceleration=e(t.tangentialAcceleration),this.tangentialAccelerationVariance=e(t.tangentialAccelerationVariance),this.startAlpha=e(t.startAlpha),this.startAlphaVariance=e(t.startAlphaVariance),this.endAlpha=e(t.endAlpha),this.endAlphaVariance=e(t.endAlphaVariance)},r.initParticle=function(t){var e=t,a=i.getValue(this.lifespan,this.lifespanVariance);if(e.currentTime=0,e.totalTime=a>0?a:0,!(0>=a)){e.x=i.getValue(this.emitterX,this.emitterXVariance),e.y=i.getValue(this.emitterY,this.emitterYVariance),e.startX=this.emitterX,e.startY=this.emitterY;var r=i.getValue(this.emitAngle,this.emitAngleVariance),s=i.getValue(this.speed,this.speedVariance);e.velocityX=s*egret.NumberUtils.cos(r),e.velocityY=s*egret.NumberUtils.sin(r),e.radialAcceleration=i.getValue(this.radialAcceleration,this.radialAccelerationVariance),e.tangentialAcceleration=i.getValue(this.tangentialAcceleration,this.tangentialAccelerationVariance);var n=i.getValue(this.startSize,this.startSizeVariance);.1>n&&(n=.1);var c=i.getValue(this.endSize,this.endSizeVariance);.1>c&&(c=.1);var o=this.texture.textureWidth;e.scale=n/o,e.scaleDelta=(c-n)/a/o;var h=i.getValue(this.startRotation,this.startRotationVariance),l=i.getValue(this.endRotation,this.endRotationVariance);e.rotation=h,e.rotationDelta=(l-h)/a;var m=i.getValue(this.startAlpha,this.startAlphaVariance),u=i.getValue(this.endAlpha,this.endAlphaVariance);e.alpha=m,e.alphaDelta=(u-m)/a}},i.getValue=function(t,e){return t+e*(2*Math.random()-1)},r.advanceParticle=function(t,e){var i=t;e/=1e3;var a=i.totalTime-i.currentTime;e=a>e?e:a,i.currentTime+=e;var r=i.x-i.startX,s=i.y-i.startY,n=Math.sqrt(r*r+s*s);.01>n&&(n=.01);var c=r/n,o=s/n,h=c,l=o;c*=i.radialAcceleration,o*=i.radialAcceleration;var m=h;h=-l*i.tangentialAcceleration,l=m*i.tangentialAcceleration,i.velocityX+=e*(this.gravityX+c+h),i.velocityY+=e*(this.gravityY+o+l),i.x+=i.velocityX*e,i.y+=i.velocityY*e,i.scale+=i.scaleDelta*e*1e3,i.rotation+=i.rotationDelta*e*1e3,i.alpha+=i.alphaDelta*e*1e3},r.setEmitterXVariance=function(t){this.emitterXVariance=t},r.setEmitterYVariance=function(t){this.emitterYVariance=t},r.setLifespan=function(t){this.lifespan=t},r.setLifespanVariance=function(t){this.lifespanVariance=t},r.setStartSize=function(t){this.startSize=t},r.setStartSizeVariance=function(t){this.startSizeVariance=t},r.setEndSize=function(t){this.endSize=t},r.setEndSizeVariance=function(t){this.endSizeVariance=t},r.setEmitAngle=function(t){this.emitAngle=t},r.setEmitAngleVariance=function(t){this.emitAngleVariance=t},r.setStartRotation=function(t){this.startRotation=t},r.setStartRotationVariance=function(t){this.startRotationVariance=t},r.setEndRotation=function(t){this.endRotation=t},r.setEndRotationVariance=function(t){this.endRotationVariance=t},r.setSpeed=function(t){this.speed=t},r.setSpeedVariance=function(t){this.speedVariance=t},r.setGravityX=function(t){this.gravityX=t},r.setGravityY=function(t){this.gravityY=t},r.setRadialAcceleration=function(t){this.radialAcceleration=t},r.setRadialAccelerationVariance=function(t){this.radialAccelerationVariance=t},r.setTangentialAcceleration=function(t){this.tangentialAcceleration=t},r.setTangentialAccelerationVariance=function(t){this.tangentialAccelerationVariance=t},r.setStartAlpha=function(t){this.startAlpha=t},r.setStartAlphaVariance=function(t){this.startAlphaVariance=t},r.setEndAlpha=function(t){this.endAlpha=t},r.setEndAlphaVariance=function(t){this.endAlphaVariance=t},i}(t.ParticleSystem);t.GravityParticleSystem=e,egret.registerClass(e,"particle.GravityParticleSystem")}(particle||(particle={}));
\ No newline at end of file
diff --git a/particle/libsrc/src/GravityParticleSystem.ts b/particle/libsrc/src/GravityParticleSystem.ts
index 09335aa4..544b6840 100644
--- a/particle/libsrc/src/GravityParticleSystem.ts
+++ b/particle/libsrc/src/GravityParticleSystem.ts
@@ -325,5 +325,84 @@ module particle {
             locParticle.rotation += locParticle.rotationDelta * dt * 1000;
             locParticle.alpha += locParticle.alphaDelta * dt * 1000;
         }
+        //增加设置重力系统参数的方法，方便动态改变参数
+        public setEmitterXVariance(emitterXVariance:number) {
+            this.emitterXVariance = emitterXVariance;
+        }
+        public setEmitterYVariance(emitterYVariance:number) {
+            this.emitterYVariance = emitterYVariance;
+        }
+        public setLifespan(lifespan:number) {
+            this.lifespan = lifespan;
+        }
+        public setLifespanVariance(lifespanVariance:number) {
+            this.lifespanVariance = lifespanVariance;
+        }
+        public setStartSize(startSize:number) {
+            this.startSize = startSize;
+        }
+        public setStartSizeVariance(startSizeVariance:number) {
+            this.startSizeVariance = startSizeVariance;
+        }
+        public setEndSize(endSize:number) {
+            this.endSize = endSize;
+        }
+        public setEndSizeVariance(endSizeVariance:number) {
+            this.endSizeVariance = endSizeVariance;
+        }
+        public setEmitAngle(emitAngle:number) {
+            this.emitAngle = emitAngle;
+        }
+        public setEmitAngleVariance(emitAngleVariance:number) {
+            this.emitAngleVariance = emitAngleVariance;
+        }
+        public setStartRotation(startRotation:number) {
+            this.startRotation = startRotation;
+        }
+        public setStartRotationVariance(startRotationVariance:number) {
+            this.startRotationVariance = startRotationVariance;
+        }
+        public setEndRotation(endRotation:number) {
+            this.endRotation = endRotation;
+        }
+        public setEndRotationVariance(endRotationVariance:number) {
+            this.endRotationVariance = endRotationVariance;
+        }
+        public setSpeed(speed:number) {
+            this.speed = speed;
+        }
+        public setSpeedVariance(speedVariance:number) {
+            this.speedVariance = speedVariance;
+        }
+        public setGravityX(gravityX:number) {
+            this.gravityX = gravityX;
+        }
+        public setGravityY(gravityY:number) {
+            this.gravityY = gravityY;
+        }
+        public setRadialAcceleration(radialAcceleration:number) {
+            this.radialAcceleration = radialAcceleration;
+        }
+        public setRadialAccelerationVariance(radialAccelerationVariance:number) {
+            this.radialAccelerationVariance = radialAccelerationVariance;
+        }
+        public setTangentialAcceleration(tangentialAcceleration:number) {
+            this.tangentialAcceleration = tangentialAcceleration;
+        }
+        public setTangentialAccelerationVariance(tangentialAccelerationVariance:number) {
+            this.tangentialAccelerationVariance = tangentialAccelerationVariance;
+        }
+        public setStartAlpha(startAlpha:number) {
+            this.startAlpha = startAlpha;
+        }
+        public setStartAlphaVariance(startAlphaVariance:number) {
+            this.startAlphaVariance = startAlphaVariance;
+        }
+        public setEndAlpha(endAlpha:number) {
+            this.endAlpha = endAlpha;
+        }
+        public setEndAlphaVariance(endAlphaVariance:number) {
+            this.endAlphaVariance = endAlphaVariance;
+        }        
     }
 }
\ No newline at end of file