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5/20/2010 1:52:04 PM
Title: changing alpha (or color) with dragover
Please help, Im totally new to AS. I have the raster of dots on white background. I would like it when i DragOver EACH DOT it becomes white so it looks like you are actually drawing white line by erasing the dots. Ive somehow found the way how to do it by making it transparent when I rollover. But it doesnt work with dragover.
This is the code assigned to MC with one black dot (this MC with one dot I have copied to another MC to make dense raster). When I test the movie, it works great, every dot I touch with rollover disapears, but when I change rollover in the script for dragover, it doesnt do anything.
this.onRollOver = function () {
this._alpha = 0;
}
1
hi onDragOver does not work for your scenario. However if you want to draw a white line you can simply use the below code . This code draws a line when you press the mouse and move and stops when you release the mouse. So the user can easily draw over you flash file . Its actionscript 2.0 code , just paste it in your root frame .
createEmptyMovieClip("myLineClip",1);
//you can change the color from black to white and size from 2 pixel to anything you want
// 100 is alpha
myLineClip.lineStyle(2,0x000000,100);
onMouseDown = function (){
myLineClip.moveTo(_xmouse, _ymouse);
onMouseMove = function (){
myLineClip.lineTo(_xmouse, _ymouse);}
}
onMouseUp=function(){
onMouseMove=null;
}
2
if you have a few number of dots like 10-15 then you can check the position of mouse on mouse move and set alpha of movielip to zero which falls in that area. Or hittest function can also be used. Tell me the number of dots you have then I can suggest you the easy one.
3
To Flash_Guy: Thank you !very much! for your tip, but for my project i need whole dots to disapear one after another as you drag over them. To draw line is great idea but than it can happen that only parts of dots will go white.
4
To Kiney: thank you Kiney. I have like 900 to 1000 dots on 1200x1600 px document size. And for my project i need whole dots to disapear one after another as you drag over them. Thank you for your help.
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