I'm not very familiar with scripting in general or in Actionscript 3, but at current I am working on a sort of motion comic project.
At the end of each 'chapter' I want the comic panel to close, a new button to appear and the layer that prevents pressing on stuff in the background to move outside of the screen. This is the code I use.
this.addEventListener(MouseEvent.CLICK, endcomic);
function endcomic(event: MouseEvent): void {
parent.parent.x = -480;
parent.parent.y = 0;
parent.parent.gotoAndStop(1);
parent.parent.parent.comicclose.x = -1920;
parent.parent.parent.btn02.x = 1476,2;
}
But I keep getting the error
Symbol 'window01', Layer 'Actions', Frame 8, Line 8, Column 23 1119: Access of possibly undefined property btn02 through a reference with static type flash.display:DisplayObjectContainer.
So apparently it has something do to with the loads of instances in instances I have, yet I cannot quite understand where the problem exaclty lies.
According to your code, I think You can put comicclose and btn02 in same parent, and set btn02's visible property to false at first. Then in your endcomic function, set btn02's visible to true and set its x position.
Related
I have the following function in a scene that extends citrus.core.starling.StarlingState - it loads the PlayerRun animation and displays it on the screen. For the most part, this code works: I see the sprite on the screen (it's running in place).
protected final override function DrawScene ():void
{
Player = new CitrusSprite ( "Player" );
Player.velocity = [60, 0]; // Doesn't seem to have an effect
Player.x = 40;
Player.y = 40;
var oClip:MovieClip = new MovieClip ( Resources.getTextures (
"PlayerRun" ), 24 );
Player.view = oClip;
add ( Player );
}
I'm not sure how I'm supposed to use the velocity property - there's no documentation for it and no matter what numbers I use in the code above, it doesn't change the display: the animation plays but the sprite is stationary (it doesn't move horizontally as I would expect it).
Am I using the velocity property incorrectly? Does Citrus support sprite velocity or is this something I'd have to implement myself?
As it turns out, CitrusSprite has a property, updateCallEnabled that's false by default and disables calls to update(). Once I set this property to true, the code started working as expected.
I haven't used Citrus yet, but looking at the source code it should work the way you've gone about it assuming that the update method is called on your player:
You can review the way the velocity property works at these locations:
The getter and setter for velocity.
The update loop for CitrusSprite.
MathVector, the type used for velocity internally.
I suspect you need to add the player to something that will queue it for updating.
How do I make that the object that I click, start moving in circles ( 2,3 ) around the stage
before arriving at its end position.Like in this picture
the way I figured out it could be is something like this:
private function onClick( ev:MouseEvent ):void
{
var currentObj:Sprite = ev.currentTarget as Sprite;
TweenLite.to(currentObj, 1, {x:first_X, y:first_Y, onComplete:goToPosition2 });
function goToPosition2():void
{
TweenLite.to(currentObj, 1, {x:secontd_X, y:second_Y, onComplete:goToPosition3 });
}
function goToPosition3():void
{
TweenLite.to(currentObj, 1, {x:third_X, y:third_Y, onComplete:goToPosition4 });
}
..
..
.
.
.
//and so on and so on
}
yet I somehow feel that this is very wrong way of doing it.
A bit interesting, another way of solving it can be to create a movieclip that contains a 'handle' clip inside that follows a motion path. Call this the 'driver clip'.
Then to get a shape/another moiveclip to follow along it, start the driver clip playing at frame 1 and add an event handler. In the event handler, on every frame sync the x and y of the object you want to the driver clip's handle clip inside. Also can set the visibility of that handle clip to false to hide it. When the driver clip reaches the end frame, you can remove the event listener and the shape will be in its finish position.
This method would work for a very irregular shape that would take too long to manually plot in code (assuming you're using the flash ide).
Simple way: contain your object within a parent MovieClip, near its periphery. On click, rotate the parent and also increase its scale, so that your object traces a spiral path.
I apologize for how confusing this question is.
I have a Movie Clip that is a car. In the car movie clip there are four different angles to the car. (e.g. left, right, front back). I dynamically change the body color of the car. In each angle of the car, the body of the car has an instance name "body." I change the color with the code :
var tempcar = "car_mc" + i;
var myNewTransform = new ColorTransform();
myNewTransform.color = 0x000000 //in real life this is a random value
this[tempcar].body.transform.colorTransform = myNewTransform;
Everything works fine, until I tell the car movie clip to gotoAndPlay the frame "front," where we see the front side of the car, and I try and apply the color change again to the body of the front of the car. I get the error :
TypeError: Error #1009: Cannot access a property or method of a null object reference.
Is there a better way to do what I am trying to do?
That's the old ActionScript 2 way of handling things. In ActionScript the container is not always a MovieClip, which would except the hash to access a dynamic field. Also, if you'd added it to the display list via addChild, the result would be different as well, since it is not the case in ActionScript 3, that could address the child automatically.
You should use an Array to store and access dynamically created instances.
// clazz would be the symbol
function createInstance(container:DisplayObjectContainer, clazz:Class, list:Array):Sprite
{
const child:MovieClip = new clazz() as MovieClip;
if (!child) throw new ArgumentError("Wrong type given");
return list[list.length] = container.addChild(child);
}
function getInstanceAt(index:int, list:Array):Sprite
{
return list[index] as Sprite;
}
I have been creating a hypermedia player, and i have got to a stage where it is glitching out and it is apparently a...
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at AvalancheCityHypermediaPlayer_fla::MainTimeline/fl_CustomMouseCursor()
Here is my code:
import flash.events.Event;
cust_cursor.mouseEnabled= false;
cust_cursor.addEventListener(Event.ENTER_FRAME, fl_CustomMouseCursor);
function fl_CustomMouseCursor(event:Event)
{
cust_cursor.x = stage.mouseX;
cust_cursor.y = stage.mouseY;
}
Mouse.hide();
I am not sure why it is not working properly, basically when a button is hovered over it is meant to jump to frame 2 and stop, but it is jumping to that frame, and then jumping straight to frame 1 without stopping on frame 2, and stops on frame 1.
1 . Your error isn't producing a line number. You (and I) will find this invaluable for debugging; if in the Flash IDE, you can turn this on in the Publish Settings under swf preferences as a toggle titled "Permit debugging".
2 . Is this code inside a class, or in document code (e.g., Flash IDE "Actions" tab)? If it's inside a class, make sure you pass a reference of the stage to the constructor of your class and assign it to an internally persistent variable so that fl_CustomMouseCursor can address it. By default, classes have no internal way of referencing the stage, and I'm assuming that's what's producing your #1009 error.
For example, inside your class constructor...
package com.example {
public class MyClass {
private var stage;
public function MyClass(arg) {
stage = arg;
}
}
}
And outside when instantiating the class...
var myObj:MyClass = new MyClass(stage);
3 . If you want your code to stop on a frame, use stop(); or gotoAndStop()
4 . Finally, if you're compiling with Flash IDE, you can debug this and see exactly which variable in the stack the runtime environment is having issues with. You can access it from the debug menu or by compiling with control-shift-enter.
The title might be a little misleading. Look at my code and I will explain
public static function loadTile(tileDir:String = "empty"):void
{
if(tileDir != "empty")
{
tPoint = new Point(0,0);
tRect = new Rectangle(0,0,30,30);
//load in tile sheet image
loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.INIT,tilesLoadInit);
loader.load(new URLRequest(tileDir));
}
}
private static function tilesLoadInit (e:Event):void {
tileImage = Bitmap(loader.content).bitmapData;
tileReady.dispatchEvent(new Event("TileReady"));
}
var tImage:BitmapData = new BitmapData(30,30);
tileNum = tileNumber;
tPoint.x = 0;
tPoint.y = 0;
tRect.x = 0;
tRect.y = 0;
tImage.copyPixels(tileImage,tRect,tPoint);
this.graphics.beginBitmapFill(tImage);
this.graphics.drawRect(0, 0,tWidth ,tHeight );
I create a empty bitMapData called tImage. I then take a predefined variable called tileImage which is a bitMapData as well and contains a picture of an image. tRect is predefined as well its width and height is 30x30. I copy a piece of the image and I put it in tImage. problem is that AS3 throws an error saying that tImage is a incorrect type
ArgumentError: Error #2015: Invalid BitmapData.
But clearly it isnt. my question is that is there something different about the data type of bitMapData and bitMapData type that the graphic object accepts ?
I am trying to do tiling with sprites. I want my tiles to be interactive, so that is why I am using the sprite object instead of using regular bitMaps to represent my tiles. You might be wondering why I wouldnt just use graphics.beginBitmapFill(tImage); and graphics.drawRect(0, 0,tWidth ,tHeight ); to pick out the tiles I want to use. Well reason being is because it turns out that drawRect() first and second parameters actually alter the location of where the actual sprite sits at.
So if I set the x and y properties of the sprite to x = 20, and y = 20. then I set my drawRect(20,20). it actually adds an extra 20 pixels to my x and y coords of my sprite. And I know the reason why, I just need to know a better way. Sorry for so much writing and thanks for your time!
It's not saying the type is wrong, it's saying the object is invalid. I expect you'd get a TypeError if the type was wrong.
You've also not stated where exactly the error is thrown, and are assuming the problem is with tImage on the 8th line. It looks more likely that the problem is with tileImage (which you've given no details about) on line 7.
This is probably because of Flash's inbuilt limit to the size of BitmapData objects. If the total number of pixels is larger than 16,777,215, Error #2015 is thrown.
You can read up on it in the docs: BitmapData, Right above "View the examples".
Here's a trick that used to work if you want to give it a shot: BitmapData workaround