I have a simple animation set up - A background I have painted in P/Shop and a Sheep.
The sheep is an animated movie clip - whose head turns and body moves.
What I need to happen is that when the sheep walks under a tree - he is in complete shadow - until he walks out from under the tree.
So far I managed to put the sheep under a shadow layer.. mask the shadow and use a rectangle which is aprox sheep size - it then moves along a tween teh same as the sheep.. It is quite clunky though and will take a fair amount of work reshape the mask shape each time to cover the exact sheep.. even then I won't be able to follow the animation exactly.
So, is there a way to have the animated sheep be a movie clip and a mask - so that he goes into full shadow everytime he passes under a tree.
Or is there another way to achieve this? Thx
The problem is cacheAsBitmap property,
you must assign maskclip and your maskedclip property to cacheAsBitmap = true
For example:
maskmc.cacheAsBitmap = true;
myMaskedClip.cacheAsBitmap = true;
myMaskedClip.mask = maskmc;
I added sample fla file that you can check it here : FLA
Can you put your sheep on a layer in between the shadow and the background? Probably not because you want the sheep in front of the tree -
Maybe you need to put a shadow element inside the sheep movie clip, and use a script to fade it in or out depending on hit test with the tree.
You could add a duplicate copy of the sheep to be used as a mask, although a shadow would probably need softer edges than this kind of mask will give you.
Related
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 am creating a fighting game. I've got a spritesheet for the hero and a spritesheet for a monster. Since both will be able to do multiple attacks I would like to avoid to merge them in a single spritesheet. And I am intending to create more characters.
Now I am creating a SpriteBatchNode for each spritesheet and add them to layer.
CCLayer* stage = CCLayer::create();
CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("character_hero.plist");
this->characterHeroBatchNode = CCSpriteBatchNode::create("character_hero.pvr.ccz");
CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("character_monster.plist");
this->characterMonsterBatchNode = CCSpriteBatchNode::create("character_monster.pvr.ccz");
stage->addChild(characterHeroBatchNode);
stage->addChild(characterMonsterBatchNode);
Now I have one sprite in characterHeroBatchNode and multiple in characterMonsterBatchNode.
How can I reorder the monsters and the heros z-Order based on their PositionY attribute.
For example>
monster1->setPositionY(10); // In monster batch node
hero->setPositionY(24); // In hero batch node
monster2->setPositionY(43); // In monster batch node
I want the monster 1 behind the hero. And the hero behind monster2.
In the past, I've had to create games where I wanted some sprites in the foreground and others in the background. The sprites were in different sheets, like you have them.
To get them in the order I wanted, I put the "front" sprites into one CCLayer and the "back" sprites into another CCLayer. I added the layers to the scene in the order I wanted them to appear. I also manipulated each the respective layers to make them fade in/out as needed. So you could have the hero in the scene and then have the enemies appear behind him.
If you want to mix and match, you can have 3 layers, one for the "middle ground", one for "front", and one for "back", and dynamically move the sprites between the layers.
Was this what you were looking for?
If I understand what you're asking, the answer is, you can't. Consider each CCSpriteBatchNode to be its own container. You can adjust the Z order of the sprites inside the CCSpriteBatchNode, but when you add the batch to the CCLayer the whole CCSpriteBatchNode is applied to the CCLayer in whatever Z order you added it at. So in order to do what you want you would need another batch of monsters. Or use CCSprites and add/adjust them on the CCLayer in the way you want, but then you obviously lose the CCSpriteBatchNode benefits.
I've a problem with ROLL_OVER event listener. When I enter the empty area withing the movieclip with mouse cursor, ROLL_OVER event triggers. But I want that event trigger only when mouse cursor is on the colored area.
To Make it more clear: Think about " O " letter, when mouse cursor is between the empty area of O letter (inside of O) , event shouldn't trigger. It should trigger only when mouse curser is on the black area.
How can I implement this?
Thanks
-Ozan
PROBLEM IS SOLVED THANKS TO #Ethan Kennerly
I just want to add a few things to help people have problem same as me. In my situation I tried to make continents glow when my mouse is over them. I used the ROLL_OVER/MOUSE_OVER eventlistener to check if my mouse is over them or not. But with the data given by Ethan Kennerly I produced another way.
In Ethan Kennerly's solution, if your mouse enters the area of continent from a transparent area , it doesn't get blur effect because ROLL_OVER and MOUSE_OVER event listeners only trigger once per enters so I used MOUSE_MOVE event listener on each continent movieclips.
And for this statement:
if (isPixelTransparent(DisplayObject(event.currentTarget), new Point(stage.mouseX, stage.mouseY)) {
return;
}
add whatever is in the "ROLL_OUT or MOUSE_OUT" eventlistener function, add all of them inside this statement. But don't remove ROLL_OUT or MOUSE_OUT functions.
It sounds like the movie clip contains a shape that has transparent pixels. Transparent pixels respond to mouse over and roll over. If you could draw vector graphics that have no shapes with transparent pixels, the mouse would ignore the empty space in the movie clip's bounding box.
Yet it sounds like you need to use transparent pixels and you want the mouse to ignore them, so you could guard, like this:
private function onRollOver(event:MouseEvent):void
{
if (isPixelTransparent(DisplayObject(event.currentTarget), new Point(stage.mouseX, stage.mouseY)) {
return;
}
// respond to roll over.
}
To detect transparency, Miguel Santirso rendered the pixels and translated the coordinate space here: http://sourcecookbook.com/en/recipes/97/check-if-a-pixel-is-transparent-in-a-displayobject (Except line 38 looks on my computer like "rect" got rendered as "ct"). You could optimize that code by only drawing the pixel in question, instead of the whole image, and checking if that pixel value (getPixel32) is 0, instead of calling a hitTest. I would optimize Miguel's code like this:
public static function isPixelTransparent(objectOnStage:DisplayObject, globalPoint:Point):Boolean
{
var local:Point = objectOnStage.globalToLocal(globalPoint);
var matrix:Matrix = new Matrix();
matrix.translate(-local.x, -local.y);
var data:BitmapData = new BitmapData(1, 1, true, 0x00000000);
data.draw(object, matrix);
return 0x00000000 == data.getPixel32(0, 0);
}
By the way, if all your movie clips would have the same hit test shape, you could create a separate transparent shape that listens to the roll over. I use a transparent shape to define a custom hit test shape that is a consistent and simple shape (like a circle) when the image is a more complicate shape (like an X or an O with nothing in the middle). The custom hit test shape is a Sprite with a transparent shape. The sprite listens to the roll over. A separate mouse listener shape is also useful if your movie clip, on later frames, creates new shapes that alter the silhouette of the movie clip.
The easiest solution would be using the Interactive PNG class by Moses.
http://blog.mosessupposes.com/?p=40
Normally the clear areas of a PNG are treated as solid, which can be especially frustrating when dealing with a lot of images that overlap each other because they tend to block mouse interactions on the clips below them.
This utility fixes that so that mouse events don't occur until you
bump against a solid pixel, or a pixel of any transparency value
besides totally clear. InteractivePNG lets you set an alphaTolerance
level to determine what transparency level will register as a hit.
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 ! :-)
I have added some backgrounds on stage and then on top of that adding another background and all these are movieclips.
At some time i have to remove the backgrounds and then it should be added but here problem am facing is the background become coming front.
so is there any function like send to back or bring to frond based on the movie clip names.
You want to experiment with :
setChildIndex(object, z-value)
This set the depth of the object on the stage.
swapChildren (object1, object2)
This exchange the position of two objects on the stage.
setChildIndex
swapChildren
swapChildrenAt
addChildAt
Use addChildAt(index);
http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/flash/display/DisplayObjectContainer.html#addChildAt()