为什么当淡入淡出效果起作用时，这种移动效果对我的精灵不起作用? [英] Why wont this move effect work on my sprites when the fade effect does?

问题描述

有人可以解释为什么这不起作用吗?在徽标后面有点装饰.

Could someone please explain why this doesn't want to work? It's a bit of decoration to go behind a logo.

当 dMove var 被注释掉时，我会在沿 x = 78 轴的随机点处获得适当的方块线淡入淡出，但是当引入时什么都没有出现...

When the dMove var is commented out I get the appropriate line of squares fading in and out at random spots along the x = 78 axis, but when introduced nothing appears at all...

private var floatBG:UIComponent = new UIComponent();

private function addDP(event:TimerEvent):void{  

            var dY:Number = 5+Math.ceil(Math.random()*60);
            var dSize:Number = Math.ceil(Math.random()*12);
            var dAlpha:Number = Math.random()*0.5 + 0.2
            var dDuration:Number = Math.ceil(Math.random()*5000) + 1000;

            var d:Sprite = new Sprite();
            d.graphics.beginFill(0x1C75BC,dAlpha);
            d.graphics.drawRect(78, dY, dSize,dSize);
            d.graphics.endFill();

            floatBG.addChild(d);

            var dMove:Move = new Move(d);
            dMove.xBy = 300;
            dMove.duration = dDuration;

            dMove.play();

            var dFade:Fade = new Fade(d);
            dFade.alphaFrom = 1;
            dFade.alphaTo = 0;
            dFade.duration = dDuration;

            dFade.play();

            this.addElement(floatBG);

        }

此外，在每个周期结束时销毁精灵的最佳/正确方法是什么?

Also, what would be the best/correct method for destroying the sprites at the end of each cycle?

非常感谢，非常感谢！

乔希

推荐答案

好的，经过一番尝试后，我设法找到了解决方案，我非常感谢 Brian Bishop 的帮助，他成功地为我指出了正确的方向.

Ok, so after a bit of playing around with it I managed to find a solution, I really appreciated Brian Bishop's help, who managed to very much point me in the right direction.

正如 Brian 所建议的，只需输入 d 作为 UIComponent 而不是 sprite 就可以让 dMove 生效(我仍然不知道为什么这是因为 dFade 效果在它仍然是一个精灵时起作用).然而，每次添加 floatBG(BG 是背景，添加所有 d UIComponents 的 UIComponent)是不必要的，所以我将 this.addElement(floatBG) 作为我的 creationComplete 函数

As Brian suggested, simply entering d as a UIComponent rather a sprite allowed the dMove to effect (I'm still not sure why this is, as the dFade effect worked when it was still a sprite). However adding the floatBG (BG being background, the UIComponent to which all the d UIComponents are added) each time was unnecessary, so I made this.addElement(floatBG) part of my creationComplete function

然后我遇到了应用程序开始填充 d 个实例的问题(顺便说一下，d 最初代表数据点"，这是我试图创建的效果的主题，一缕缕他们)，并逐渐减慢应用程序的速度.不断添加 d 元素是必要的，因为它是位于屏幕角落的徽标的一部分，看起来尽可能漂亮...

I then ran into the issue that the application began to fill with the d instances (d originally stood for "datapoint" by the way, which was kind of the theme of the effect which I was trying to create, a plume of them), and progressively slowed the application to a crawl. To continuously add d elements is necessary as it's part of the logo that sits in the corner of the screen looking as pretty as I can make it...

最终我找到了下面的解决方案，它的关键是用 600 个虚拟 UIComponents 加载 floatBG，然后在 addDP 函数的每个循环中都添加一个将 d UIComponent 移动到 floatBG 并从它包含的总子数组中删除另一个 UIComponent.

Eventually I came to the below solution, the crux of it was to load floatBG with 600 dummy UIComponents, and then with each cycle of the addDP function both add a moving d UIComponent to floatBG and remove another UIComponent off of the total array of children which it contains.

因此，最后它看起来像这样:

Thus, in the end it looked something like this:

<?xml version="1.0" encoding="utf-8"?><s:Group xmlns:fx="http://ns.adobe.com/mxml/2009" 
     xmlns:s="library://ns.adobe.com/flex/spark" 
     xmlns:mx="library://ns.adobe.com/flex/mx" creationComplete="init(event)">

<fx:Script>
    <![CDATA[

        import mx.core.DesignLayer;
        import mx.core.UIComponent;
        import mx.effects.effectClasses.MoveInstance;
        import mx.events.EffectEvent;
        import mx.events.FlexEvent;
        import mx.states.RemoveChild;

        import spark.effects.AnimateColor;
        import spark.effects.AnimateFilter;
        import spark.effects.Fade;
        import spark.effects.Move;
        import spark.effects.Rotate;
        import spark.effects.easing.Sine;

        private var floatBG:UIComponent = new UIComponent;

        private var floatColour:uint = 0x1C75BC

        protected function init(event:FlexEvent):void
        {   

            //Float BackGround set up
            floatBG.mask = floatMaskBlock;
            floatBG.depth = -1;

            this.addElement(floatBG);


            //Fill FloatBG with 600 filler elements
                for(var i:int=0; i<600; i++)
                {
                    var filler:UIComponent = new UIComponent;
                    floatBG.addChild(filler);
                }
            //Float Animation Timer

            var floatTimer:Timer = new Timer(1,0);
            floatTimer.addEventListener(TimerEvent.TIMER,DPstartup)
            floatTimer.start();

        private function DPstartup(event:TimerEvent):void
        {
            this.addDP(5,60)
            this.addDP(22,14);
            this.addDP(18,18);
        }

        private function addDP(yf:Number,yt:Number):void
        {   
            this.title.text = floatBG.numChildren.toString();

            var dY:Number = yf+Math.ceil(Math.random()*yt);
            var dXby:Number = Math.ceil(Math.random()*1000 + 50);
            var dSize:Number = Math.ceil(Math.random()*12);
            var dAlpha:Number = Math.random()*0.5 + 0.2
            var dMotionDuration:Number = Math.ceil(Math.random()*15000) + 1000;
            var dFadeDuration:Number = Math.random()*dMotionDuration;

            var d:UIComponent = new UIComponent;

            d.graphics.beginFill(floatColour,dAlpha);
            d.graphics.drawRect(78, dY, dSize,dSize);
            d.graphics.endFill();

            var dMove:Move = new Move(d);
            dMove.xBy = dXby;
            dMove.duration = dMotionDuration;
            dMove.easer = Linear;

            dMove.play();

            var dFade:Fade = new Fade(d);
            dFade.alphaFrom = dAlpha;
            dFade.alphaTo = 0;
            dFade.duration = dFadeDuration;

            dFade.play();

            floatBG.addChild(d);
            floatBG.removeChildAt(0);
        };
    ]]>
</fx:Script>

<fx:Declarations>       
    <s:Sine id="Sine"/>
    <s:Bounce id="Bounce"/>
    <s:Linear id="Linear"/>     
</fx:Declarations>

<s:Group x="88" width="1000" height="80" id="floatMaskBlock">
    <s:Rect width="100%" height="100%">
        <s:fill>
            <s:SolidColor color="0xffffff"/>
        </s:fill>
    </s:Rect>
</s:Group></s:Group>

好吧，抱歉，如果这有点啰嗦，但有人可能会觉得它很有用...这是一个很好的效果(无论如何我都这么认为)

Ok, apologies if that was pretty long-winded, but someone may find it useful... it's a nice effect (I think so anyway)

我使用蒙版为 d 元素出现的点提供了一个清晰的边缘.或者，可以将它放在另一个对象后面，但如果像我这样，对象是一条宽度小于某些 d 元素大小的线，则需要这样的掩码.

I use the mask to give a sharp edge to the point at which the d elements appear. Alternatively one could just place it behind another object, but if, as in my case, the object is a line of width less than the size of some of the d elements, such a mask is necessary.

颜色在开始时被声明为一个变量，因为我可能会添加一个函数来在点击时更改它，或者类似的东西.

The colour is declared as a variable at the beginning as I'll likely add a function to change it on click, or something similar.

谢谢！

乔希

这篇关于为什么当淡入淡出效果起作用时，这种移动效果对我的精灵不起作用?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！