Flex :: How To Know If Point Belong To Sprite
Mar 8, 2012
How can I know if a point is contained inside of an Sprite in Flex?
For example:
// My example point
var A:Point = new Point(5,5);
// My example sprite
var s:Sprite = new Sprite();
s.graphics.lineStyle(1,0x000000,1);
s.graphics.moveTo(0,0);
s.graphics.lineTo(100,100);
The point A belong to sprite s because its position is inside of it. Is there any function to know it? I want to do it for all kind of sprites, so use math formulas to calculate linear or quadratic equations (line, circle, rectangle, etc) is not valid for me.
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May 22, 2011
I'm trying to convert a Sprite that I have into BitmapData so I can perform some collision detection. There are a few things about the way the Sprites are used that is making this more difficult than I expected:
The Sprite itself is a container which holds another Sprite that actually has a box drawn in it. The inner Sprite is positioned negative half its width & height so that it can be rotated from the center via the container. The container may be rotated at any angle at any given time
So my approach thus far has been attempting to draw the outer Sprite onto a new BitmapData object with a Matrix to account for the difference. Whilst I can use a Matrix to make this work for one particular rotation angle, I cannot find a way to make it work for any rotation.
Here's what I'm doing to draw onto the new BitmapData:
var p:Product = getProduct(); // Product is the container with the inner sprite
var bounds:Rectangle = p.getBounds(stage);
var bd:BitmapData = new BitmapData(bounds.width, bounds.height, true, 0x00FFFFFF);
[Code]....
Translating by the same amount as the previous example will no longer work here, and the box will still be cut off. I've looked around at some solutions posted before or suggestions from other people but they don't seem to work for me due to my container Sprite and rotation.
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Apr 26, 2009
i am succesfully panning an image so far with this code:
Code:
my_mc.addEventListener(Event.ENTER_FRAME, panMe);
function panMe(e:Event):void {
[code]....
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Aug 9, 2011
I searched online and found this script that is supposed to rotate and image but I'm not sure how to use, where to put in the degree angle that I want my sprites to rotate by. Also, I get an error. 1084: Syntax error: expecting identifier before leftparen. 1084: Syntax error: expecting rightparen before leftbrace.
var point:Point=new Point(spr_box.x+spr_box.width/2, spr_box.y+spr_box.height/2);
rotateAroundCenter(spr_box,45);
function rotateAroundCenter (ob:*, angleDegrees) {
[Cde].....
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Feb 4, 2008
I'm attempting to write a racing game. I've loaded in my image, I brought it to the stage and now, all I want to do is rotate it from its' center and not upper left corner.
The code:
racer.rotation += 5;
rotates from the upper left corner. How do I rotate from the center of the car/sprite? I've tried putting it into a container but I'm unsure on the coordinates of the container because I tried to set the x,y coordinates to half the sprite image but y'know, it's not doing what I expect it to.
ActionScript Code:
if (arrowLeft) {
var container:Sprite = new Sprite();
[Code]....
I will never sneer at another racing game! I didn't think it would be this hard to do a simple rotate of an image!
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Aug 8, 2009
I once needed to pan a sprite full of movieClips (picture 1) which were draggable with no bounds so you could drag them up and left (higher than sprites registration point).
You could also drag them down and right and expand a sprite that way (as well) but that didnt matter.What did matter was how much is 'up' and 'left' from the sprite registration point so i can include that in my formula for panning.
This was easy to find, i just sorted my array of movieClips, sorted on x and sorted on y after each drag, and thats how i got my up and left points.
Now I am trying to do that same thing, exept my movieclips inside a sprite have a custom rotation (picture 2), so i also have an up and left point, except this time up and left are caused by rotations of movieClips inside a sprite... (and these are dragable as well with no bounds)
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Mar 29, 2012
I am generating sprites programatically like this:
this.food = new Sprite();
this.food.graphics.beginFill(0xFFFFFF);
this.food.graphics.drawRect(0, 0, 10, 10);
this.food.filters = [new GlowFilter(0xFF6699, .80, 5, 5, 2, 2, false, false)];
this.food.graphics.endFill();
[Code]...
I basically want the food sprite to spin slowly about its center, not its x and y value which is the top left corner of the sprite. How can I make the anchor the center of the sprite?
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Aug 5, 2011
I am making application which will dynamically create sprites via action script and copy the sprite's image to a bitmapdata object via .draw() function. I would like to store the location of the sprite's transformation point and insertion origin (which would be set within the flash editor when the sprite is created/imported.) Is there a way to access the location of the transformation point and the insertion origin via ActionScript? I just want to read it, I do not need to change it.
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Aug 30, 2009
I've looked over many forums and pages to sadly learn that you can not reset/change the registration point of a movieclip dynamically. Though I am curious if or how I could go about assigning the registration point to a sprite instance I create at runtime. To give you a more concrete example of what I'm doing:
I create an instance contentWindow in my code to be animated (a 300px by 200px rect with registration in the top left corner)I create a Sprite instance imageHolder in my code and add it as a child to contentWindow I then add various images to imageHolder through a Loader object referencing an XML file. imageHolder's top left corner is oriented to contentWindow's registration point. (Leaving me with an oddly oriented imageHolder if the contentWindow's registration is centered, and will only re-size from that origin) Since imageHolder will be switching out various sized images it would be much more aesthetic to have the sprite's registration point centered. So since as3 defaults it to top left shouldn't there be a way to alter it at instantiation of the sprite? Then I could set my contentWindow's registration to center and the empty sprite would center all content loaded into it?
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Jul 31, 2009
When you load a object through flash, you can set the rotational/scale point, but when you load it as a loader object or sprite, how do you change this point?
In this instance, I want to change the height of a sprite that is filled with a rectangle so that it shrinks down, not up.
Right now:
var colored_bar:Sprite = new Sprite();
with (colored_bar.graphics) {
beginFill(0x9e1819, 1);
[Code]....
The way I am doing it currently is moving the y position everytime I take away soem of the height, so it looks like it's moving down, but I'd think moving the orientation point at the beginning would be faster
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Jul 28, 2011
I created a drag and drop kind of game. Each item has the code below. How do I set the game to complete once the user has placed all the pieces where they belong?
[Code]...
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Mar 2, 2012
I'm using robot legs, I've got a bunch of ServiceResponses that extends a base class and have a dependency on a Parser, IParser. I need to wire in a parser specific to the subclass. Here's an example: ModuleConfigResponse extends SimpleServiceResponse and implements IServiceResponse.
The initial part is easy to wire in the context, here's an example:
injector.mapClass(IServiceResponse, ModuleConfigResponse);
injector.mapClass(IServiceResponse, SimpleServiceResponse, "roomconfig");
..etc
Each Response uses a parser that is used by the baseclass:
injector.mapValue(IParser, ModuleConfigParser, "moduleconfig");
injector.mapValue(IParser, RoomConfigParser, "roomconfig");
The question is how to tie these together. The base class could have:
[Inject]
public var parser : IParser
But I can't define the type ahead of time. Im wondering if there a nice way of wiring this in the context. For the moment I've decided to wire this up by instanciating responses in a ResponseFactory instead so that I pay pass the parser manually in the constructor.
injector.mapValue(IParser, ModuleConfigParser, "moduleconfig");
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Sep 14, 2010
I'm trying to sort MCs on stage that belong to different instances of different objects.
[Code]...
is there a simple way to use the Depth Management methods to control their sorting order? Right now, all I know how to do is place objectTypeB either in front of or behind all members of objectTypeA.
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Feb 17, 2006
I'm developing a game and the objective is to drag some objects to a container. Some objects add points, and some other subtract points. So, all the objects are in the library and have a linkage name to be called by attachMovie. I want to create an Array with all the objects that belong to container, like for example filename1 = ["obj1", "obj2", "obj3"]; etc... I have a var called count1 that defines the number of objects to appear on the Scene
[Code]....
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Aug 24, 2009
Using the ArcGIS Server Flex API, is there a way to convert mouse coordinates on the screen or the a map control to spatial coordinates in the map? It seems like there's functionality to convert map points to screen points, but a function for converting in the other direction seems weirdly absent.
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Mar 5, 2010
I created a class, extended the sprite class, and now in the constructor I am trying to set the Sprite's width and height properties which are inherited from the DisplayObject. However, after I set this.width and this.height, and print the values, I get 0 for both.
What the heck is going on? When I view the livedocs I see that DisplayObject has width and height listed as public properties. I have been able to instantiate a Sprite directly, and set the width and height after it's been instantiated, so I don't get it.
package {
import flash.display.*;
public class ScrollBar extends Sprite {[code].....
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Apr 4, 2011
I've got a sprite which I want to temporarily hide... But changing the .visible property doesn't do what I expect. The code looks roughly like this:
[Code]...
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Mar 2, 2009
I created a new AS3 document (550px by 400px) and added the following code to the first frame.
However, when I run this, I see nothing painted on the screen at all, the screen remains completely white.[code]...
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Jul 6, 2011
I'm doing a simple rotation on a sprite but there's a weird behavior where the sprite does not rotate around it's top left. I think I'm rotating along the top left of the test class instead of the sprite child. I would like to rotate the rectangle around it's top left corner (kinda like a clock hand). The code is pretty short so I'll let the code + pictures explain my problem:
package
{
import flash.display.Sprite;
[Code]....
I've read a lot of stuff about rotating around a fixed point, I've tried doing it with movieclips instead of sprites, I even copy pasted a tutorial on rotation and nothing works.
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May 27, 2008
[Code]...
Then the numericStepper is drawn as if it is squished to 20% its normal height. If I pre-set mySprite width and height before adding the numericstepper, the trace output is 0,0 after adding it and it is not displayed at all. Is there some way I can make the sprite only adjust to correctly fit the numericStepper OR resize it afterwards without distorting the numericStepper component?
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Sep 23, 2011
Both of sprite.width and sprite.scaleX can be used for scale a sprite. Is possible sprite.scaleX depends on screen size?
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Jun 19, 2009
It has been a great resource of the years. No my problem. I am trying to dynamically resize a sprite that has a line drawn into it. Here is my code:
[Code]...
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Dec 27, 2010
How do I create multiple instance of the same sprite with different name as in shap1,shape2, shape3, etc. Then the function will change the color of the sprite through getChildByName? Whether I create a new instance, the old sprite will be overwrite by the new sprite and when I call the old "shape1", it will be null. How do I retain all sprite?
var c:UIComponent = new UIComponent();
var s:Sprite = new Sprite();
private function shapeCreate() {
[code].....
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Aug 15, 2010
first i have 2 sprite.. it`s mcproduct sprite and mcproductpane sprite . mcproductpane is a parent of mcproduct sprite.. so inside mcproductpane there a several mcproduct sprite.this is a script of mc prodcut
PHP Code:
[Code]...
The problem is i want to set a button in here(mcproductpane sprite), this button will unload / make dissappear an image that i load using loader class in mcproduct sprite..how can i make this happen?when i want to make a button in mcproductpane sprite which the function of the button it`s to unload/make an image that i load using loader class in mcproduct sprite disappear.
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Dec 26, 2009
I'm wondering (based on scoping rules) how I might do the following: I want to draw to a sprite that exists on the main stage in which I have a class instantiated.
So something like
public function MyClass(reference:String){
this.reference = reference;
}
[Code]...
Would I use super() in this case, or what's the usual methodology?
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Jan 1, 2010
I have two sprites, the first is the mask and the second on is going to be masked by the first. Right now I can see the second sprite that is masked, but not the first that is doing the masking. Is there a way to show the sprite that is doing the mask?
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Apr 13, 2010
I have this snippet of ActionScript code that is supposed to resize an image to fit the sprite: (as in rescale the image not just clip it)
[Code]...
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May 23, 2010
What is the difference between a UIComponent and a Sprite in Flex.
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Jul 2, 2010
I have this simple class:
import spark.effects.GlowFilter;
public class Letter extends Sprite {
private var glowFilter:GlowFilter = new GlowFilter();
[code]........
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Jul 7, 2010
How is cropping/clipping accomplished on a Sprite in Flex?
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="Init()">
<mx:Script>
<![CDATA[
[code]....
Notice that the lineTo completely leaves the UIComponent and Panel.How can I cause my UIComponent or Sprite, Or Panel for that matter, to be cropped/clipped? I realize I could just change the hard-coded 2222's to something more reasonable, but I need a generalized solution to this, since the actual project doesn't involve hard-coded values that I can alter, but works with dynamic data.
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