i have a simple movieclip, based off text, with a few frames, and instead of creating an invisible area to do the hit test, is there any way to set the hit area to equal the movieclip's dimensions?, google seems to not be able to provide results, i don't need pixel perfect hit detection, but rectangle detection
View 2 RepliesWhat is the SIMPLEST way to make a pixel perfect hit test class?
View 41 RepliesI'm making an arcade game in as3 and I want to draw pixely(unsmoothed by flash) lines. I'm drawing the pixels 'by hand'(not with flash's lineTo or anything) onto a bitmapdata object. The lines don't appear quite right though, when zoomed out the line is rendered 2 pixels thick at some parts. However by zooming it its apparent that the algorithm is fine and its not doubling the pixels. Changing the quality doesn't seem to change anything.
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I'm using a blitting engine that uses bitmapData. No display objects.Is there a fast pixel perfect collision detection available for such a game system?I already tried CDK but that didn't work because it assumes you have display objects which my objects don't use. Sometimes my objects are pretty big and hitTest sucks in this case. I already tried circle-to-circle collisions but that didn't do the trick either.
View 1 Repliesneed build pixel based collision dectection class , i have found some classes already built by different people and they are really usefull, but as i want to build one of my own, i need to know basic theory behind tha
View 3 RepliesI have been desperately searching for a way to do pixel perfect collisions, and for someone to explain it to me in detail. explain the code in the .fla file, posted by the Canadian in the frequently asked questions thread on bitmapData hit testing:
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after looking through the help files, i must admit they are terribly vague. All you are doing is checking if _alpha is above a certain amount. With movieClips you would use 0->100 but with this hittest you have to use 0->255 (0x00->0xFF)so an _alpha of 50 would correspond to approx 128 (0x80). Nearly all the time you could just use 1 as a hittest parameter so you are checking for any hit at all but maybe you have a shadow in a mc layer and you do not want to check a hit. This is when you might be able to use your threshold parameter. In other words, the hit test will only react to parts of the bitmap which have a greater or equal alpha than the alpha threshold, mostly useful for a shadow.
I was searching for a simple collision detection function for as3, I found Collision Detection Kit, but it is too complicated, I just want a damn function that I give 2 objects as paramenters and that's it.I would like to know where can I find a pixel-perfect collision detection function (The faster, the better)
View 2 RepliesI just thought I'd drop a note here to those who are interested. I recently posted about it on my website and you can download the source for it there too. Here's some excerpts:
Ive run it at 60+ FPS with 7,000 particles, but that actually isnt the limitation (unless your particles are crunching heavy math for eg movement). Rather its the size and number of sprites that were colliding with the particles.
To squeeze all the juice out of Flash I employed a couple tricks. The first was the particles themselvestheyre blitted to a single bitmap which is used as the source image for grabbing collision data from. The particles are also drawn with the raster engine in Flash (multiple setPixel32() ops to give the illusion of a line a choppy one anyway) instead of the vector renderer (lineTo()).
The second trick was to only grab a Vector of pixels from the regions we cared about (within sprite boundaries) every so often, then to loop through the Vector and test it against our desired conditions. Also, since the particle bitmap is more sparse than our sprites as far as opaque pixels go, we test the particle bitmap first, resulting in a lot fewer passes on the first round of conditional statements.
That's the gist of it, but I explain it a bit more in detail in the post. Hope someone finds this useful and please let me know if you come up with something cool using it
I need to measure some text before I place it down in my scene programmatically. Is there something like a measureString(s:String, f:Font) function? If so, can someone give me some hints of where it is?
View 3 RepliesI have a vector movie-clip of a cat. Behind it, there is a picture of a park. The picture of the park takes up the entire stage, but the cat is only 32x16. How could I use BitmapData to sample all pixels (of everything, not just the park) within the cat's bounding box (but not including the cat itself in the samples (so like the cat is invisible); also 4 pixels wider in each direction, so it would effectively be 40x24) and then return the RGB average (in hexidecimal) so that I can set a masked transparent mc in front of the cat to that value?
Basically, so it looks like the color of the cat's surroundings affect its tint, to crudely simulate global illumination in 2d.
I have made a movieclip and gave the frame this actionscript:
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var keyListener:Object = new Object();
keyListener.onKeyDown = function() {[code]........
it moves fine and stuff but i was wondering how can i restrict the area in which the movieclip can actually move ? my flash file is 550px X 400px and i want to make it so that it can only move in 300px X 200px of the file if you understand ?
Can I detect the color of a pixel or an area in a Display Object?
View 2 RepliesThe issue I'm having is that I have a main "wrapper" 100x100 (but it could be any size) - it's just there to hold and display whatever content, swf, gif, etc we may want to throw into it. As long as the loaded content doesn't have 3D animation like rotationY going on, it displays fine. But when it does, the 3D "anchor" properties (like projectionCenter) of the loaded swf inherit those of the main timeline (i.e. 100x100 (main) vs 728x90 (loaded)). If I change the dimension of the main "wrapper" in Flash IDE to match what's coming in - the 3D behaves fine, but I won't know what the dimensions of the content will be until it comes, so I need a way (if there is one) to dynamically alter the main "wrapper" or root display object through AS. Stuff like "this.width = loader.width" or "stage.width = loader.width" or "root.width = loader.width" etc doesn't work. Flex has the hBox and vBox
View 1 RepliesImagine two movieclips, both on the same Y axis. I want one MC to be able to diagonally move to the other MC X axis, all while making a perfect diagonal line until it reaches 100y. So just like this picture, that MC moves in a perfect diagonal until it matches the other MC.x, and 100y (no matter what, it can't go past 100y but must equal 100y). I probably made it sound more complicated than it is.
View 2 RepliesI am looking for a fairly simple image comparison method in AS3. I have taken an image from a web cam (with no subject) passed it in to bitmap data, then a second image is taken (this time with a subject) to compare this data, from these two images I would like to create a mask from the pixels that match on both bitmaps. I have been scratching my head for a while, and I am not really making any progress. Could any one point me in the right direction for pixel comparison method, something like getPixel32()
View 2 RepliesI have a MovieClip in the library exported for actionscript. How do i convert or attachMovie it to a BitmapData class so that i can manipulate its pixel data? I will need that so that i can distort the MovieClip.
View 3 RepliesI have a 100x100px image. I want to get 1 pixel vertical line from x- 1 to 100. How can I do that?
View 7 RepliesI've googled out a lot of different stuff on this matter but nothing seems to work. I have a Sprite object which is used as a main container for other objects.The lowermost child of this sprite is a Bitmap which represents a background, the upper ones are MovieClips. These movie clips contain bitmaps. There are also DropShadow filters applied to these movie clipsThe problem is that when the main container moves, e.g. 1.3 pixels to to the right or to the left (doesn't matter) all those objects (movie clips contained inside of it) move like they snap to pixels. Well,it's obvious, they do. But is it possible to avoid pixel snapping for movie clips and sprites?I tried to set pixelSnapping of the bitmaps inside those MovieClips to "never", but it doesn't work. Removing all filters or drawing movie clip to bitmapdata doesn't help either.
View 3 RepliesI have a movieclip button with the following actionscript (which I have on the main timeline above my MC layer):
movieclip1.onRollOver = function(){ movieclip1.gotoAndPlay("normal");
}
movieclip1.onRollOut = function(){ movieclip1.gotoAndPlay("hitout");
}
movieclip1.onPress = function(){ movieclip1.gotoAndPlay("over");
}
This works perfectly! My movieclip button takes up the whole stage but I don't want the whole stage to be my hit area (which right now it is). I was searching and I found this actionscript: hit._visible = false;
this.hitArea = hit; The tutorial said to make another layer inside my MC, then add that code. But when I play my movie, I can still see my green square (which was supposed to be my hit area) and it does nothing!
I'm new to the forum my name is Chris. I'm currently working as a Graphic Artist for a company called TransTech Systems in Schenectady, NY [URL] I registered today Im trying to figure out. I need to disable the hit area of an object thats part of a movieclip button. Im trying to create a single image light box effect in which the blown up image closes when you mouse off the thumbnail. Here is a link to my movie [URL] If you click on the pic of the gauge you will see the image blows up, and the background fades to a transparent black for better contrast between the pic and the page. I need the background fade effect to not have a hit area otherwise the rollout action does not work.
View 1 RepliesHow i can define a hit area for my movie clip. i want determine accident of two MovieClips and I need to define a hit are for them.
View 4 RepliesI am having problems with a MovieClip, basically it can be moved arround with the mouse and it is resizeable but when i move it arround or enlarge the movieclip (when its in a published format) i want to constrain it to an area such as 400 width by 400 height.Because at the moment you can drag or resize the movieclip ouside the whole frame, which i dont want. i want to constrain it to a set area.
View 7 RepliesI have a game where you click a button and I want a movieclip to be duplicated in a certain area which is a movie clip named swamp_mc.On the button I am writing:
Code:
on (press) {
i = i + 1;
[code].....
I've got a movieClip that's scrolling across the stage that loops nicely (kinda like the many cloud animations out there).
I've set the clip up to stop it's scrolling on a rollOver, and start up again on the rollOut.
My problem is that after the rollOut the loop doesn't work. The movieClip just keeps travelling.
Code:
blue.onEnterFrame = function() {
blue._x -= 2;
if (blue._x<=-0) {
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I have a mini-game where I have three movieclips:The player (controlled by mouse); A random object that moves around the stage (like the arkanoid ball without the paddle and the blocks); A simple power up.The game is simple: hitting the power up increases your scoreThe game ends when the object hits the player.The question is:How can I spawn the power-up (randomly) on the stage area, every time the player hits it?When that happens I want the following events to occur:1) The power-up to be removed;2) Increase the score by 1.3) Place a new power up randomly on the stage.4) Rinse and repeat.
View 12 RepliesI have a movieclip (view_mc), I want to scale it in a restricted area.
I have made an IF statement,
when its width and height are less than the width and height of the restricted area, then do scale.
but when it reaches the width and height of the restricted area I can't scale it down.
Here is the code:
view_mc.addEventListener(Event.ENTER_FRAME, on_enter_scale);
function on_enter_scale(e:Event):void
{
[Code]....
I have 2 moveclip called view_mc and restricted and button called btn_scale.
When the user click and drag btn_scale, it resizes the view_mc where the width and height of view_mc dosen't exceed the width and height/2 of restricted area.
I made that. But when view_mc reaches the width and height/2 of restricted area, I can't resize view_mc to be samller. (The btn_scale looks like it's disables and can't use it)
I think some logic is missing. I highlighted the code that is missing some logic.
var clickedX:Number;
var clickedY:Number;
var newScale:Number;
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I created a movie clip button that contains 2 text fields, one static and one dynamic. The dynamic text field holds strings that will vary in length. This MC in general is used as a button so what im trying to do is not have the hit area as large as the length of the text box.
If you go to http:[url].... and click on (takeout > menu) you will see on the menu all the items listed are overlapping onto the picture, i want to limit the hit area so that does not happen. I cannot shorten the MC because it will vary in length, and if it does become that long then that portion should not be clickable.
I need to drag and drop a movie clip onto a certain area and if the position it landed is right I do not want the users to be able to drag the clip again. How can I stop the clip being dragable?
View 2 RepliesOn the enter frame of my movie I want to take a movie clip in my library and have 3 instances of it move randomly within a small area (~ 50 x 50 pixels). I also want the alpha to change to 0 and back to 100 every couple of seconds. Should I be using duplicateMovieClip or should I use something else? I'm trying to create something similar to how the leaves react on this site [URL].
View 2 Replies