I am trying to make a object (movie clip containing textfields and bitmaps) and I need to make it partially transparent at times (like making half of it disappear). How is it possible?
// only things inside the rect will be visible
DisplayObject.scrollRect = new Rectangle(...);
A MovieClip is also a DisplayObject.
Related
I want to mask the png image pattern.png with another image - mask.png, but it doesn't work at all and I can't find the reason. Instead of masking the image, the mask just disappears and the pattern stays the same as it was.
I tried making a MovieClip, drawing e.g. a circle and using that as the mask instead of mask.png and it works just fine. Is it because you can't use loader objects as masks? How do I make it work?
edit: After changing the size of mask.png to be smaller than the pattern, I've realized that it actually does kind of work, but what happens is instead of cutting the pattern into the shape I've drawn in the png file it just cuts it into the shape of the entire file, as in, it counts the rectangular transparent background as well. How can I make it cut out just the shape?
var mask:Loader = new Loader();
mask.load(new URLRequest("mask.png"));
var pattern:Loader = new Loader();
pattern.load(new URLRequest("pattern.png"));
pattern.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete);
function loadComplete(e:Event):void {
addChild(pattern);
addChild(mask);
pattern.mask = mask;
}
Your code is looks correctly. The mask property of DisplayObject wants DisplayObject too. But try to make few things, to find the trouble:
You have only one listener, to pattern.png. But you must be sure, that mask.png has loaded already too.
Despite that Loader is DisplayObject too - try to get content from loader for mask, and just after that try to use it.
*Ah, and one more thing. You must at first add listener, and only later try to load.
I am working on a flash sound mixer application with multiple sound channels, and I am having trouble with the lights beside the volume knob.
Is there a way to hide just a part of an image?
On the image below, image-2 is on top of image-1 to create some kind of volume level indicator effect, and how much of image-2 is shown depends on the value of the volume.
image-url: http://s30.postimg.org/r3ow1g5bl/volume_lights_level.png
I've tried by just reducing the height of image-2, but it looks awful and distorted.
Is there something in flash that works closely the same as CSS's behavior.
example: I'll just make image-2 a background of a shape, and when I reduce the shape's height, the image-background does not get distorted or changes it's height as well.
By searching for solutions, I have come across the mask property, but I don't quite understand how it works, and most of the examples shown are images placed inside circles.
Is the mask property applicable in this situation?
I'm quite new to flash so I don't know a lot of things yet.
You can indeed use a mask.
How to programmatically create your mask
Put an occurrence of your image named myImage on the stage, and put over this occurrence a mask named myMask with the same dimensions. You can apply myMask mask to myImage using it's mask property like below:
Main Timeline
myImage.mask = myMask;
function mouseMoveHandler(e:MouseEvent):void {
myMask.height = myImage.y - e.stageY;
}
stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
You have just to adapt this code to your animation, in the function where you click your button.
I got it working now, many THANKS #VC.One. heres how I did it.
Imported img-2 to stage, converted it into symbol(type:Movie Clip), assigned instance name: img2_mc.
I created a new layer for the mask, drawn a rectangle using rectangle tool, converted it also to symbol(type:Movie Clip), assigned instance name: mask_mc.
Then applied the mask to img2_mc.
/* the code */
img2_mc.mask = mask_mc;
function onEnterFrame(event:Event):void{
var volumeKnob_y = volSliderKnobOn.y + 12; // adjust it to the center of the knob
mask_mc.height = volumeKnob_y;
}
I'm having difficulties trying to add some masks
mc1.mask = randMc;
Where mc1 = loaded MovieClip, and randMc is a pic imported to flash and converted as MovieClip. This is a very big game code I have there so I thought the Indexes might be the problem so I added this :
setChildIndex(randMc, (getChildIndex(mc1)-1));
But it didn't work meaning the movieclip stays the same, it won't mask with randMc...
Any suggestions?
Note: I also have used scaleX/Y on mc1
it seems that .png files are a mask including transparent pixels, so it's a square mask.. anyway I fixed it with
mc1.cacheAsBitmap = true;
randMc.cacheAsBitmap = true;
This way it the empty pixels won't "count" and the mask will be just like the imported .png on stage
Is it possible to display a mask object using AS3?
I have a MovieClip called myMC, then I mask myMC with the MovieClip called myMask. MOVIE_CLIP and MASK are library MovieClips.
var myMC:MovieClip = new MOVIE_CLIP();
var myMask:MovieClip = new MASK();
myMC.mask = myMask;
Of course, myMC won't show.
What I want is that myMC is only displayed in myMask, and not outside it, with myMask reamining visible.
To be quite honest with you, this isn't possible AFAIK. A mask, by definition, is invisible. What you would need is to have the mask be the SHAPE you want, and then have an additional MovieClip that shows whatever visual elements you would have shown on the mask.
Case and point, if you wanted to use a glass-pane graphic as your mask, you would need to have a glass-pane graphic, the mask with the same dimensions, and then the MovieClip you're masking underneath that mask.
I hope that helps.
This should be fairly simple I'd think, I'm just not that familiar with actionscript haha.
I have a game where I have the background moving behind a character that stays in one position on screen. I'm relatively new to actionscript 3 but I'm wanting to have text boxes pop up whenever the player presses a key over certain objects passing in the background.
So, basically the background itself is a movie clip, and I have other graphics and movie clips within the background mc.
I was thinking of getting the player.x and y position and then "comparing" that position (>= and <=, etc.) with the graphic/movie clip in the background. But I just don't know how to obtain the x and y coordinate of the graphics/movie clips in the background mc.
You could try to target your movie clips in the background by getting their coordinates, then removing their parent's position (the background container).
Something like :
var finalXPosition:int = targetMovieClip.x - backgroundContainer.x;
var finalYPosition:int = targetMovieClip.y - backgroundContainer.y;
By substracting the target movieclip parent's position to its position, you gain the final position in the parent's scope coordinates.
It should work for you as soon as your character and your background container are situated at the same level of the display list.
Here is a quick diagram of what I try to explain (please forgive my inaptitude to draw nice and explicit drawings ^^)
Usually, when I stumble upon such a case, I try to make a quick and even dirty drawing, starting with what I want, then breaking down every useful data I have to achieve that result, you should keep that method in mind and try it the next time ! :-)