Make Code Wait...
I am going to a function to build a big combo box, then selecting an item from it... but it seems that the select is trying to happen before the box is finished building... any ideas?
Thanks
ActionScript.org Forums > ActionScript Forums Group > ActionScript 2.0
Posted on: 09-18-2006, 09:55 PM
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How To Make Code Wait For An Event?
Hello,
I'm trying to make a slideshow that dynamically loads pictures, fades them in, and fades out previous images.
I've made some progress: The pictures load, they fade in, but now I'm stuck.
I've created the functions- displayImage(), fadeUp() and fadeDown(),
Clicking on a button will call displayImage which will load an image, start a preloader movie clip, and once the preloader hits frame 100, it invokes fadeUp(), making the new image visible.
But now I want to make the previous image fade out. How can I add this to the displayImage definition? How can I make the code wait for this event? I added it bluntly at first in a similar way to this: (pseudo code)
Code:
function displayImage(...) {
if(there is an image already loaded) {
fadeDown(the image)
}
loadMovie(imageName, "placeHolder_mc"); //load new image
preloader_mc.gotoAndStop(2); //begin preloader
}
but of course, the code will call fadeDown and not wait for it to do its business.As a result, there is no fade down, and the code immediately activates the fadeUp for the new Image.
What's the best way to do this? Have I gone down completely the wrong path?
I thought of another way which was to specify a global variable (let's say var imChange:Boolean) which gets set High at the end of fadeDown. Then I added a while(imChange == FALSE) loop to displayImage to make it wait, but it crashed the Flash player.
anyway, my main question is, how can I arrange my code so that it performs functions in sequence? i.e. it waits for one function to finish before performing another?
Main timeline code pasted below. Note that the code that activates 'fadeUp' is located in the preloader_mc. Here's a link to the entire package (including images): http://www.zen26398.zen.co.uk/files/Imageloader.rar
and without the images: http://www.zen26398.zen.co.uk/files/...oader%202c.fla
If anyone can give me any tips i'd appreciate it, I'm trying to improve my technique. Thanks for reading
Code:
var imageName:String;
var sizeLoaded:Number;
var totalSize:Number;
var imChange:Boolean;
_root.createEmptyMovieClip("placeHolder_mc", 1);
placeHolder_mc._xscale = 20;
placeHolder_mc._yscale = 20;
placeHolder_mc._visible = FALSE;
function displayImage(num:Number) {
imageName = "Image"+num+".jpg";
loadMovie(imageName, "placeHolder_mc");
preloader_mc.gotoAndStop(2);
}
function fadeUp(targetMc_mc:MovieClip) {
trace("Fade up init");
var i:Number = 0;
targetMc_mc._alpha = 0;
targetMc_mc._visible = TRUE;
targetMc_mc.onEnterFrame = function() {
this._alpha = i;
i += 10;
if (i>=100) {
i = 100;
delete targetMc_mc.onEnterFrame;
}
};
}
function fadeDown(targetMc_mc:MovieClip) {
trace("Fade down init");
var i:Number = 100;
//targetMc_mc._alpha = 100;
//targetMc_mc._visible = TRUE;
targetMc_mc.onEnterFrame = function() {
this._alpha = i;
i -= 10;
trace(i);
if (i<=0) {
i = 0;
delete targetMc_mc.onEnterFrame;
}
targetMc_mc._visible = FALSE;
};
}
_root.button_btn.onRelease = function() {
displayImage(1);
};
_root.button2_btn.onRelease = function() {
displayImage(2);
};
_root.button3_btn.onRelease = function() {
displayImage(4);
};
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E
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i need to crate a slideshow that loads jpgs dynamically from a certain location.
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trace(files[i]);
}
}
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Trying To Make A Button Rollover, Wait And Recheck Rollover
hi. i'm mostly comfortable with the graphical elements of using flash and there a gaps in my knowledge when i want to polish things up.
i have a bunch of buttons which, when rolled over, trigger some text to sweep accross in an area above the buttons and sweep away when rolled out.
this works nicely but if the viewer sweeps the mouse over a few buttons quickly all the MCs with text in play and it gets very messy.
the only way i can think to tidy this up is to make the button delay when rolled over and recheck about half a second later. if it's still rolled over then it plays the MC. i tried this the obvious way (triggering a small MC with onRollover > play MC at the end) but it needs the actual act of rolling over to trigger so i had to roll out and over again which defies the point >.<
i realise this is a really specific problem and it's very cheeky to ask others to solve my problems but if any of you have come accross similar problems and can point me in a better direction i'd really appreciate it.
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How Can I Make This Code Better
heres my code
Code:
if (c[0]+c[1]+c[3]+c[4] + .... + c[40]==0){
do something
}
as u can see i figured out how to make an array ....... basically the code sums all the elements in the array.
Why??
On my map engine i have 40 pieces each having its own hittest with the main character. If hittest ==true on mc0 then c[0]=1. Therefore when there is no hittest the sum of all the arrays elements are Zero.
thanks
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Can You Make This Code Better?
Hi all,
I created an Infinite menu item and after reading through the forums I applied a few tweaks to get the follow behaviors:
a) only rolls when the mouse is over the MC
b) has a deadzone of about 200 pixels in the center for easy clicking
One problem i am having is that it will stop scrolling if I leave the swf above or below it, however sometimes it continues scrolling if I leave by the left or right edge.
I am also curious if this could be simplified.
Code:
onClipEvent (load) {
xcenterhigh = 442;
xcenterlow = 250;
speed = 1/20;
}
onClipEvent (enterFrame) {
if (this.hitTest(_root._xmouse, _root._ymouse, true)) {
if (_root._xmouse>xcenterhigh) {
var distance = _root._xmouse-xcenterhigh;
} else if (_root._xmouse<xcenterlow) {
var distance = _root._xmouse-xcenterlow;
} else if (_root._xmouse>xcenterlow) {
if (_root._xmouse<xcenterhigh) {
var distance = 0;
}
}
_x += (distance*speed);
if (_x>0) {
_x = -692;
}
if (_x<-692) {
_x = 0;
}
} }
Thanks,
Eric
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How Can I Make This Code Better?
How can I make this code better:
ActionScript Code:
onClipEvent(load)
{
speed = 10;
speedx = speedy = speed;
targetx = this._x;
targety = this._y;
}
onClipEvent(enterFrame)
{
_x += (targetx - _x)/speedx;
_y += (targety - _y)/speedy;
}
I use the code to move object by changing targetx and targety with the click of a button.
The animation at the end seems to be 'jagged' - i.e. it kind of 'judders'.
How do I stop this?
Are there any better alternatives to the above?
AND... if possible, I'd like to do it in Flash 5. (But if there are better ways to do in MX, please let me know this as well.)
Thanks.
OM
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