[AS 2.0]關于function用法與問題

VernGalaxy

最近初學function的用法，不過遇到了小問題。
首先我在Stage上做了2個Dynamic TextField，Instance Name為：
1.LatestNewsText
2.GalleryText

下面是我的Code：

LatestNewsText1 = "Poverty is the shortage of common things such as food, clothing, shelter and safe drinking water, all of which determine the quality of life. ";
GalleryText1 = "The Gallery Project is an open source project enabling management and publication of digital photographs and other media through a PHP-enabled web server. ";
function TextEffect(TargetTextBox,TargetString,CounterName) {
    CounterName = 1;
    this.onEnterFrame = function() {
        if (CounterName<TargetString.length) {
            TargetTextBox.text = TargetString.substr(0, CounterName);
            CounterName++;
        } else {
            TargetTextBox.text = TargetString;
        }
    };
}
a=TextEffect(LatestNewsText,LatestNewsText1,count1);
b=TextEffect(GalleryText,GalleryText1,count2);
stop();

若大大照著做，再Copy以上的Code在第一個Frame，會看到LatestNewsText無法顯示，可是GalleryText顯示正常。
這是不是因為一個Function只能讓一個Instance用？還是名字和排法上面出了問題？

雖然可以個別讓他們寫同樣的Coding，可是想要學更實際的function用法。有哪一位大大可以教教？

[ 本帖最后由 VernGalaxy 于 31-5-2009 05:45 AM 编辑 ]

letmeuse

LatestNewsText1 = "Poverty is the shortage of common things such as food, clothing, shelter and safe drinking water, all of which determine the quality of life. ";
GalleryText1 = "The Gallery Project is an open source project enabling management and publication of digital photographs and other media through a PHP-enabled web server. ";
function TextEffect(TargetTextBox, TargetString) {

CounterName = 1;

TargetTextBox.onEnterFrame = function() {

if (CounterName<TargetString.length) {

this.ttt.text = TargetString.substr(0, CounterName);

CounterName++;

} else {

this.ttt.text = TargetString;

}

};
}
TextEffect(LatestNewsText,LatestNewsText1);
TextEffect(GalleryText,GalleryText1);
stop();

letmeuse

https://rcpt.yousendit.com/694534464/0f09b04902c6fdcb315fbd6fa38f1d86

source file

VernGalaxy

原帖由 letmeuse 于 31-5-2009 09:17 AM 发表
LatestNewsText1 = "overty is the shortage of common things such as food, clothing, shelter and safe drinking water, all of which determine the quality of life. ";
GalleryText1 = "The Gallery Project ...

這個方法做到了。謝謝你～
不過一定要將它設為MovieClip嗎？
有沒有更節省的方法？

VernGalaxy

最近在做Project。對于Function遇到了一點小問題。。。

下面是我其中一個Frame的Code：

this.onEnterFrame = function() {
        Uterus.onRollOver = CaptionText;
        Cervix.onRollOver = CaptionText;
        Ovary.onRollOver = CaptionText;
        Endometrium.onRollOver = CaptionText;
        Fallopian_Tube.onRollOver = CaptionText;
        Vagina.onRollOver = CaptionText;
        Uterus_Cavity.onRollOver = CaptionText;
        if (StructureDescriptionTitle.betaText.text == "undefined") {
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select a Part";
        }
};
CaptionText = function () {
        Mouse.hide();
        gotoAndPlay(261);
        IndicatorSpotName = this._name;
        _root.attachMovie("IndicatorText","IndicatorText",9997,{_x:_root._xmouse, _y:_root._ymouse});
        _root.IndicatorText.IndicatorTextMaterial1.betaText.text = IndicatorSpotName;
        _root.IndicatorText.IndicatorTextMaterial1.betaText.replaceText(_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_"),_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_")+1," ");
        _root.IndicatorText.startDrag();
        myLoadVar = new LoadVars();
        myLoadVar.load("Structure of female reproductive system.txt");
        myLoadVar.onLoad = function(success) {
                if (success == true) {
                        _root.StructureDescriptionContent.betaText.htmlText = this[IndicatorSpotName];
                        _root.StructureDescriptionTitle.betaText.text = _root.IndicatorText.IndicatorTextMaterial1.betaText.text;
                        _root.StructureDescriptionContent.betaText.autoSize = true;
                }
        };
        this.onRollOut = function() {
                gotoAndPlay(261);
                Mouse.show();
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select Organ Parts";
                _root.Indicator.gotoAndPlay(11);
                _root.IndicatorText.stopDrag();
                _root.IndicatorText.gotoAndStop(11);
        };
};
BackToTitle.onRelease = function() {
        delete CaptionText
        BackTo = "Index";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};
BackToSubTitle.onRelease = function() {
        delete CaptionText
        _global.CurrentSubTitleSubTitle = 1;
        BackTo = "ChosenTitle";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};

對于紅色Highlighted的字串，雖然我delete了CaptionText的Function，基本上Function里面的attachMovie等等都不會再出現。應該說整個function已經會不存在才對。可是偏偏在gotoAndPlay(261);卻如常運行。有誰能夠解釋嗎？

注：StructureOfFemaleReproductiveSystemBack是后面讓這個畫面慢慢消失的效果，所以在這里我找到的bug就是在沒完全消失之前，Mouse rollover，卻又運行了CaptionText（除了gotoAndPlay(261)，其他的function所包含內容卻沒有運行）。我試過 delete this.onEnterFrame，this.onEnterFrame=null，還是一樣。。。

有點亂。。。希望大大能看得懂。

super-tomato

原帖由 VernGalaxy 于 18-8-2009 09:44 PM 发表
最近在做Project。對于Function遇到了一點小問題。。。

下面是我其中一個Frame的Code：引用:

this.onEnterFrame = function() {
        Uterus.onRollOver = CaptionText;
        Cervix.onRollOver = CaptionText;
        Ovary.onRollOver = CaptionText;
        Endometrium.onRollOver = CaptionText;
        Fallopian_Tube.onRollOver = CaptionText;
        Vagina.onRollOver = CaptionText;
        Uterus_Cavity.onRollOver = CaptionText;
        if (StructureDescriptionTitle.betaText.text == "undefined") {
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select a Part";
        }
};
CaptionText = function () {
        Mouse.hide();
        gotoAndPlay(261);
        IndicatorSpotName = this._name;
        _root.attachMovie("IndicatorText","IndicatorText",9997,{_x:_root._xmouse, _y:_root._ymouse});
        _root.IndicatorText.IndicatorTextMaterial1.betaText.text = IndicatorSpotName;
       _root.IndicatorText.IndicatorTextMaterial1.betaText.replaceText(_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_"),_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_")+1,"");
        _root.IndicatorText.startDrag();
        myLoadVar = new LoadVars();
        myLoadVar.load("Structure of female reproductive system.txt");
        myLoadVar.onLoad = function(success) {
                if (success == true) {
                        _root.StructureDescriptionContent.betaText.htmlText = this[IndicatorSpotName];
                        _root.StructureDescriptionTitle.betaText.text =_root.IndicatorText.IndicatorTextMaterial1.betaText.text;
                        _root.StructureDescriptionContent.betaText.autoSize = true;
                }
        };
        this.onRollOut = function() {
                gotoAndPlay(261);
                Mouse.show();
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select Organ Parts";
                _root.Indicator.gotoAndPlay(11);
                _root.IndicatorText.stopDrag();
                _root.IndicatorText.gotoAndStop(11);
        };
};
BackToTitle.onRelease = function() {
        delete CaptionText
        BackTo = "Index";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};
BackToSubTitle.onRelease = function() {
        delete CaptionText
        _global.CurrentSubTitleSubTitle = 1;
        BackTo = "ChosenTitle";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};

對于紅色Highlighted的字串，雖然我delete了CaptionText的Function，基本上Function里面的attachMovie等等都不會再出現。應該說整個function已經會不存在才對。可是偏偏在gotoAndPlay(261);卻如常運行。有誰能夠解釋嗎？

注：StructureOfFemaleReproductiveSystemBack是后面讓這個畫面慢慢消失的效果，所以在這里我找到的bug就是在沒完全消失之前，Mouserollover，卻又運行了CaptionText（除了gotoAndPlay(261)，其他的function所包含內容卻沒有運行）。我試過delete this.onEnterFrame，this.onEnterFrame=null，還是一樣。。。

有點亂。。。希望大大能看得懂。

厄.... 你的 coding 不是完整, 所以不太能夠想像運行時候的情況
但基本上 onRollOver 所賦予的 function 會獨立儲存在另一塊 memory 位置上, 所以你刪除原本的 function 其事件會依然執行著
再來不明白為何要把賦予 onRollOver 的 coding 寫在 onEnterFrame 中呢?? 你可以嘗試改成這樣

this.onEnterFrame = function() {
        //如果能夠這裡也最好可以不要寫在 onEnterFrame 中
        if (StructureDescriptionTitle.betaText.text == "undefined") {
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select a Part";
        }
};

function assignRollOver()
{
Uterus.onRollOver = CaptionText;
Cervix.onRollOver = CaptionText;
Ovary.onRollOver = CaptionText;
Endometrium.onRollOver = CaptionText;
Fallopian_Tube.onRollOver = CaptionText;
Vagina.onRollOver = CaptionText;
Uterus_Cavity.onRollOver = CaptionText;
}

assignRollOver(); //需要的時候呼叫這個函數賦予 onRollOver 事件

function removeRollOver()
{
delete Uterus.onRollOver;
delete Cervix.onRollOver;
delete Ovary.onRollOver;
delete Endometrium.onRollOver;
delete Fallopian_Tube.onRollOver;
delete Vagina.onRollOver;
delete Uterus_Cavity.onRollOver;
}

CaptionText = function () {
        Mouse.hide();
        gotoAndPlay(261);
        IndicatorSpotName = this._name;
        _root.attachMovie("IndicatorText","IndicatorText",9997,{_x:_root._xmouse, _y:_root._ymouse});
        _root.IndicatorText.IndicatorTextMaterial1.betaText.text = IndicatorSpotName;
        _root.IndicatorText.IndicatorTextMaterial1.betaText.replaceText(_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_"),_root.IndicatorText.IndicatorTextMaterial1.betaText.text.indexOf("_")+1," ");
        _root.IndicatorText.startDrag();
        myLoadVar = new LoadVars();
        myLoadVar.load("Structure of female reproductive system.txt");
        myLoadVar.onLoad = function(success) {
                if (success == true) {
                        _root.StructureDescriptionContent.betaText.htmlText = this[IndicatorSpotName];
                        _root.StructureDescriptionTitle.betaText.text = _root.IndicatorText.IndicatorTextMaterial1.betaText.text;
                        _root.StructureDescriptionContent.betaText.autoSize = true;
                }
        };
        this.onRollOut = function() {
                gotoAndPlay(261);
                Mouse.show();
                _root.StructureDescriptionContent.betaText.htmlText = "__________________________";
                _root.StructureDescriptionTitle.betaText.text = "Select Organ Parts";
                _root.Indicator.gotoAndPlay(11);
                _root.IndicatorText.stopDrag();
                _root.IndicatorText.gotoAndStop(11);
        };
};

BackToTitle.onRelease = function() {
        removeRollOver() //不需要的時候把所有指定 onRollOver 事件刪除
        BackTo = "Index";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};
BackToSubTitle.onRelease = function() {
        removeRollOver()
        _global.CurrentSubTitleSubTitle = 1;
        BackTo = "ChosenTitle";
        gotoAndPlay("StructureOfFemaleReproductiveSystemBack");
};

VernGalaxy

因為我的資料顯示是讓整個Flash重復跑特定范圍的frames來更換不同的資料，所以需要onEnterFrame。還不知道原來function會個別存在于不同層面上，多謝指點。
嗯嗯 大致上延用了大大的function，只是改了一下下 。現在問題已經解決了，多謝Tomato兄～