Analog Sprite class

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• Confused about the extension of the Sprite class

  Howdy-

  I learn programming with object oriented ActionScript and am confused about the class Sprite and OO in general.

  My understanding is that the Sprite class allows you to group a set of objects that you can manipulate all the objects at the same time.

  I explored the Open Flash Chart code and note that the main class extends the Sprite class:

  Base/public class extends Sprite {}

  What this lets you do?

  Also, on a related note, how to draw, say, a line once I extended?

  Without extend Sprite I could write:

  var graphContainer:Sprite = new Sprite();

  var newLine:Graphics = graphContainer.graphics;

  ...

  And it works very well. Once I have extend the Sprite class, I'm lost. How can I modify this code so that it still draws a line? I tried:

  var newLine:Graphics = this.graphics;

  My understanding is that since I extend the Sprite class, I should still be able to call its method chart (or property? I have no idea). But, he screams at me, saying "1046: Type was not found or is not a constant of compilation: graphs.»

  A number of things.

  First of all, I would not use this approach in your table constructor. Setting the width and height only makes sense if you adjust the width and height of the existing content, and the table (Sprite) does not at this time here. If you want to give the table a 'size', you could do it like this:

  public function Chart (width: Number, height: Number) {}
  This.Width = width;
  This.Height = height;
  put in a background invisible to this size:
  this.graphics.beginFill (0,0);
  this.graphics.drawRect (0,0,width,height);
  }

  There are other ways, including putting in a form or a Sprite of child as a child for the background so that clear will not erase the background of the chart. This way you could have properties for the background in your table class and update the background as a child DisplayObject instance... a few ideas to think to...

  Then, after that, your chart should be functional...

  Then back in your scenario, you could do this:

  import graphics. Table;

  Stop()

  var myNewChart:Chart = new Chart (300,200)
  myNewChart.render ();
  addChild (myNewChart)

• game focusing on the sprite class

  Hi, I'm tryin to set global focus to a specific class that already exists on the scene, after that I deleted a contextual dialog box on the screen. I pass the name of the class that was on the scene before the pop-up dialog box is displayed in the string to the popup class.

  If public void PopupMenu(pClass:String)

  Once I removed the pop-up dialog box, I want to restore developed in the previous class, so it can accept events key again.

  How would I set the focus to an instance of an object on the stage. Currently, I have something like this:

  Main.mainStage.focus = (InteractiveObject) (getDefinitionByName (prevClass));

  but he returned this error: TypeError: Error #1034: Type coercion failed: cannot convert com.cox::IdleScreen$ in flash.display.InteractiveObject.

  My IdleScreen class extends sprite, which is definitely on a higher level than InteractiveObject in the diagram to display objects. How can I set focus to this class on the stage?

  I know it can be focused because I can do Main.mainStage.focus = this inside of the class and it works...

  Mount the DisplayObject to InteractiveObject.

  Main.mainStage.focus = Main.mainStage.getChildAt (2) as InteractiveObject;

• Sprite class problem

  Gives an error.
  See the code provided herewith.
  JST want to draw this sprite and animate.
  Thank you very much

  You need to add it to the displayList and do that she should be wrapped in a UIComponent:

• The label on the top of the Sprite event management

  Hi everyone, it's more of a general question of Actionscript, but Google does offer all the answers.

  So I made a custom component, element that extends the Sprite class. I draw things on the graphics in this class and then I add a Label to display text.

  In another class, where I create instances of the previous class, I add an EventListener for MouseEvent.Click.  In this function, there is this line:

  selectedElement = Element(event.target);
  

  In short, I want the variable selectedElement to contain the element on which click it. But I ran into problems, event.target is not always an instance of my class. If I click where the label is, event.target is a Label.

  How can I organize if click anywhere on my element, in particular on the label, it's the element of class that dispatches an event and not on its label. I think I need to intercept events of labels in some way, but no idea how to do this.

  Thank you in advance.

  Too bad, in the event class stopPropagation method has been what I was looking for.

• Table of sprite individual addEventListener

  Hi, I ran into a problem of its too obvious or not many people meet because I can't seem to find a solution online!

  The problem is I have table of sprite - 10 of them - and I need to save them all at a click event that changes color from black to white sprite.

  However, I do not want to write:

  a[1].addEventListener(MouseEvent.CLICK, change1);
  a[2].addEventListener(MouseEvent.CLICK, change2);
  a[3].addEventListener(MouseEvent.CLICK, change3);
  ... etc
  

  Because they are all supposed to do the same thing (changing color from black to white), is there a way for me to use a single click event 'change' and at the same time know that click event demand comes from knowing that 'a', the user clicked?

  Please help me!

  I just assumed that you created your own class which extended the Sprite class, and you called it YourSpriteClass. In your case, your code should be:

  c = new Array();
  for (var i:int = 0; i < 10; i++)
  {
      c[i] = new Sprite();
      c[i].graphics.beginFill(0x000000);
      c[i].graphics.drawRect(50 + i*20, 50 + i*20, 30, 30);
      c[i].graphics.endFill();
      c[i].addEventListener(MouseEvent.CLICK, change);
  }
  
  public function change(event:MouseEvent):void
  {
      var source:Sprite = event.target as Sprite;
          //Code here!
  }
  

  You can also use

  public function change(event:MouseEvent):void
  {
      var source:Sprite = Sprite(event.target);
          //Code here!
  }
  

  The only difference is that the variable source in the first case will be nil when event.target is not a Sprite (like when you assigned the EventListener to something else, as well) and the second solution will throw a TypeError.

• Difference between Sprite and MovieClip...

  Hi guys,.

  Please can you tell me what is the difference between Sprite and MovieClip?

  Thank you

  JaxNa

  1. a movieclip is a leprechaun on steroids.

  2. a movieclip has a timeline, a sprite does not work.  who has major implications on the properties, methods, and events including a movieclip and a sprite does not.

  3. the movieclip class is dynamic (that is to say, you can add properties), the sprite class is not.

• custom/sprites forms with code, where to start?

  Hello

  
  

  I want to start building forms pre-build, like a star, cross, heart and even more with the code.

  
  Does anyone know if there is already something like this? A library with custom sprites or forms?

  
  And can we establish these graphics that extends the sprite class or form? I read that the forms would be
  be the best for performance?

  Kind regards
  Chris.

  Use google to search.

  I know there is public php code for certain forms and the code is not very different for actionscript.

  Use the forms.  There is not much difference, if it is, in performance, but you do not use any of the properties/methods of the sprite class then you can also use the shape class.

• onEnterFrame within a class

  I don't have a problem as much as just a lack of understanding:
  
  Question: Will I run into any problems using onEnterFrame within a class? I know that onEnterFrame events can replace each other if they are written in a dynamic way, but I don't know how this effects classes...
  
  In addition, onEnterFrame is an event of the class movie no clip?... how this same question...? What happens if I declare an event inside a method inside my class onEnterFrame: it'll still work? It will affect the clip hence the class.method is called?
  
  Sigh... I hope you get the idea of what I'm going to have trouble enter. Please explain all the concepts that I seem to be missing. I'm new to classes - thank you for your help.

  > Question: will I run into any problems using onEnterFrame within a class?
  Laughing out loud
  > Also, onEnterFrame is an event of the movie no clip class... how this same question...?
  Lol here is a brief explanation of how it works.
  First of all, a class is a custom object. Don't think of a class as a bunch of code, it's an object with its own properties and methods. So, when you say: "what happens if I declare an event inside a method inside my class onEnterFrame: will it still work?" you think: "there is no timetable." Yes, there is. When you declare:

  private var my_mc:MovieClip;

  you save the functionality of the MovieClip class in my_mc. Therefore, my_mc will be a timeline and all other properties and methods of the MovieClip class. (In comparison: usually you don't have all the features of the MovieClip class, so AS3 gives us the Sprite class which is a basic implementation of a movieclip and who saves overhead).

  In a method, you can use:

  private void mover(target:MovieClip):Void {}
  target.onEnterFrame = function (): Void {}
  This ._x += 2;
  };
  }
  passing the my_mc mover of function as a parameter. If at some point you want to stop the onEnterFrame you delete just as you would use it in the code on the timeline.

  Once again. The most important thing to understand is that a class is not a bunch of code, it is a (custom) object with its own properties and methods.

• How to add a component to sprite at the request

  Hello
  In my application, I use a custom component that extends the Sprite class. I add this component to the application as < local: mySprite width = "500" height = "300" / >, but it's to show the following error on the application runs;
  
  Type coercion failed: cannot convert mySprite@129be5e1 to mx.core.IUIComponent.
  
  How can I overcome this problem, if suggestions please reply.
  
  Thank you.

  Anything you add to the display of the application list must implement IUIComponent. Wrap the sprite in a UIComponent or UIMovieClip.

• How to move to a new page on the click of a button?

  I use actionscript to develop a simple application and I'm new to application development. I don't know how to move to a new page on the click of a button. I need to go back to the old page as well. Kindly help me. The date deadline is almost.

  Welcome to the Forums Supprt.

  If you create your view that the enlargement of the Sprite class, you need to use addchild(), to remove the screen use removechild().

  // to add
  var sp : Sprite = new Sprite() ;
  addChild(sp) ;
  
  //to remove
  removeChild(sp) ; 
  

• Pinch gesture scaled

  private function onGesturePinch(e:TransformGestureEvent):void{
                  var pinchMatrix:Matrix = this.transform.matrix;
                  var pinchPoint:Point = pinchMatrix.transformPoint(new Point((this.width/2), (this.height/2)));
                  pinchMatrix.translate(-pinchPoint.x/2, -pinchPoint.y/2);
                  pinchMatrix.scale(e.scaleX, e.scaleY);
                  pinchMatrix.translate(pinchPoint.x/2 , pinchPoint.y/2);
                  this.transform.matrix = pinchMatrix;
  }
  

  is there a better way to do this? I find that this method is very nervous and I lose the picture often. Does anyone have a beautifully clean and smooth to scale a Sprite using pinch without losing the image off-screen. This method is inside a .as class that extends the Sprite class, there is also a similar method for the movement of rotation in this class. Thank you!!!

  Keep a private in your class as attribute:

  private var delay_response_id: int = 0;

  Depending on your event, which received the pinch:

  If (this.delay_response_id > 0) clearTimeout() don't (this.delay_response_id);

  also hides the data needed for the late response

  This.delay_response_id = setTimeout (MyDelay, 500); 0.5 second delay.  Change as needed

  Then in your delayed function:

  private void MyDelay(): void

  {

  This.delay_response_id = 0; reset

  process cached information

  clear the cached information

  }

  Hope that helps.

• Debugging in Curve 8520 (v4.6.1.272)

  Hello

  I'm trying to debug my App in real aircraft. Don't miss me some steps I think. I followed the steps:

  Advanced (1). the app using BB JDE 4.2.1.

  (2) I have BB Curve BB 8520 i.e with v4.6.1.272 (Platform 4.2.0118)

  (3) downloaded the simulator of RIM BlackBerry_Simulators_4.6.1.272_8520 and installed

  Build (4.) and signed the app.

  (5) the application using javaloader.exe charge

  Attachment (6). the device i.e. Debug > attach to > Handheld > USB (myPIN)

  It gives following o/p on the console:

  Double net.rim.device.apps.internal.clock.face.analog.AnalogClockFace class.
  Found in the net_rim_bb_clock_faces-6 C:\ABS10\Components\JavaDevice\Apps\4.6.1-GeminiGC2\JavaApplications\net\rim\device\apps\internal\clock\face\analog\AnalogClockFace.java.
  Ignored in C:\ABS10\Components\JavaDevice\Apps\4.6.1-GeminiGC2\JavaApplications\net\rim\device\apps\internal\clock\face\analog\AnalogClockFace.java net_rim_bb_clock_lib.
  Double net.rim.device.apps.internal.clock.face.analog.AnalogClockHand class.
  Found in the net_rim_bb_clock_faces-6 C:\ABS10\Components\JavaDevice\Apps\4.6.1-GeminiGC2\JavaApplications\net\rim\device\apps\internal\clock\face\analog\AnalogClockFace.java.
  Ignored in C:\ABS10\Components\JavaDevice\Apps\4.6.1-GeminiGC2\JavaApplications\net\rim\device\apps\internal\clock\face\analog\AnalogClockFace.java net_rim_bb_clock_lib.
  Double net.rim.device.apps.internal.resource.ClockResource class.
  Found in the net_rim_bb_clock_faces-6 C:\tmp\1\rapc_rc_55031.dir\.staging\net\rim\device\apps\internal\resource\ClockResource.java.

  .

  .

  .

  .

  and last lins are:

  VM:-DA 0
  focus: success
  JVM: bklt [1] @9782046: JBSC on = 0
  JVM: bklt [1] @9782046: SC 0
  JVM: bklt [1]: setTimeout 30
  Charger: connect
  Charger: handshake

  After that, my laptop is idle, I dn know not what to do next...? Any suggestion would be appreciated.

  Simon Merci for your quick response. In fact, I forgot to sign the application. And that was the real problem, after having signed it and repeat the above steps, I am able to debug with the device.

• problem with transparent views

  my application currently charges multiple instances of a class (pageView) off the screen as well as triggered once it can simulate pages. the page mode is basically a such as the sprite class which extends and composed of containers with labels and images.  im having the problem is that when I tween a new page over the last page is transparent and you can see the last page through a new. I tried to create a rectangle and fill it with a white background, but that failed because it covered everything on the screen.  also tried to adjust the alpha of my main container to 1 and also did not work. can someone help me understand this.

  Thank you

  NR

  If the page extends sprite, there a graphical object, it allows to create a strong bg.

  Inside of the manufacturer pageView, or setSize() method:

  this.graphics.beginFill (0 x 0, 1);

  this.graphics.drawRect (0, 0, viewWidth, viewHeight);

  this.graphics.endFill ();

  Where viewWidth and viewHeight are the desired size of your page.

• Using navigationMovement() as a trackpad/trackball mouse

  Greettings and regards other developers.  a few quick details I use the blackberry JDE 5.0 on Eclipse Galileo, I created a method of mouse for pavers and balls.  Try to expand my horizons of sale, two possible losses haunt my thoughts.

  side 1: the mouse works fine until you roll two directions at once, example left and upwards at the same time moves alone, he left or up not both.

  side 2: the touchpad does not roll like the balloon, this method will probably fine work for the ball, but not the key.

  This is the code for my navigationMovement() method

  protected boolean navigationMovement(int dx,int dy,int status,int time)
      {
          super.navigationMovement(dx, dy, status, time);
          if (!mouseOn)                               //places mouse on first run but doesnt repeat
              {
              mouses.addElement(new Sprite(Utility.SCREEN_WIDTH / 2, Utility.SCREEN_HEIGHT / 2));
              mouseOn = true;
              }
          Sprite f = (Sprite) mouses.firstElement();           //sprite class updates x and y coordinates                                                                               //Focussing on the x/y of the mouse(i know using a vector is silly here)
          f.x+= (dx * 10);
          f.y+= (dy * 10);    //moves the mouse according to dx/dy input
  
          if((f.x + mouse.getWidth()) > Utility.SCREEN_WIDTH) f.x = Utility.SCREEN_WIDTH - mouse.getWidth();
          else if(f.x < 0) f.x = 0;
          if((f.y + mouse.getHeight()) > Utility.SCREEN_HEIGHT) f.y = Utility.SCREEN_HEIGHT - mouse.getHeight();
          else if(f.y < 0) f.y = 0;        //keeps the mouse from scrolling off screen
  
          invalidate();     //update screen
          return true;
      }
  

  Is there a way to make the trackpad act as the trackball with this method, or it will be slow and jerky?  I know that the trackpads have magnitude and direction.  So I hope that's not too bad, it seems to work on the Simulator, but I need a tester phone or real app ready to try this for me.

  More importantly, how do I get the mouse to move both directions if the ball goes both directions? I have some ideas on what may be an if statement to check if both directions are going at once, then run both directions.  But it seems that both must be running.

  Thanks in advance.

  -Andy

  I just realized this post was a little out of place, thanks to blackberry api I got including this one.