addChild(); - Adding a movieclip to a frame in AS3 - actionscript-3

I am trying to create a function which adds a text box (a blue rectangle) and a textfield on the box. I have a class in the library named textBox, no external classes used.
I started actionscript 3 (before even learning many of the programming fundamentals) about a month ago, so I am not experienced with this.
function createTextBox() {
var textBoxCoordX:int = 305;
var textBoxCoordY:int = 80;
var dialogueBox:textBox = new textBox;
var dialogueText:TextField = new TextField();
addChild(dialogueBox);
dialogueBox.x = textBoxCoordX;
dialogueBox.y = textBoxCoordY;
dialogueText.x = textBoxCoordX+5;
dialogueText.y = textBoxCoordY+5;
dialogueText.text = "Insert Text Here";
}
After playing, I immediately get two errors that link me to "var dialogueBox:textBox = new textBox;" These errors' descriptions say "1046: Type was not found or was not a compile-time constant: textBox." and "1180: Call to a possibly undefined method textBox."

Ensure that the linkage is set. Right click, advanced, tick Export for ActionScript.

i think no find textBox movieclip,
You must determine the library has the movieClips and the linkedname called textBox.

Related

How to make an instance move

I got the following code and the flash events are all loaded properly. ball is a movie clip and is assigned a class.
var speedx: Number=5;
var speedy: Number=3;
var myball = new ball();
addChild(myball);
addEventListener(Event:ENTER_FRAME,ballmove);
function ballmove(e:Event):void{
myball.x+=speedx;
myball.y+=speedy;
}
But now the instance myball won't move, it is just stuck at position 0,0. Kindly help me and advice how to get this myball to move along a staright line..
If I had dragged and dropped the instance from the library, then
myball.x+=speedx;
myball.y+=speedy;
worked perfectly, but doesn't work after addChild is given.
In your code you incorrectly used Event:ENTER_FRAME when it should be : Event.ENTER_FRAME. I wonder if there is a "silent" error? When testing movies, use Ctrl+Shift+Enter to run the debugger (gives better feedback on issues/errors).
var myball = new ball(); does not mean anything. You declare instance by using this logic : var Name : Type of Data = Value, In your code here you've said only that var Name = Value. Surprisingly it works but I wonder if getting comfortable with that could lead to issues on bigger future projects?
Instance name only affects objects already on Stage. If you're adding by code (from Library) make sure you create a new instance of object by using its Linkage name.
Solution :
In the library, right-click the "ball" object and choose "properties", in there make sure "name" is ball and tick "Export for ActionScript" (you should see "Class" becomeClass: ball). OK that.
Now in your code, you can create new instance by : var myball: ball = new ball();...
Your code should look like
var speedx: Number=5;
var speedy: Number=3;
var myball: ball = new ball();
addChild(myball);
addEventListener(Event.ENTER_FRAME, ballmove);
function ballmove(e:Event):void
{
myball.x += speedx;
myball.y += speedy;
}

How to activate a TextField and Duplicate Movie Clips

I want to ask,
1 How to give focus to a TextField in AS3. in AS2 usually I'm using
Selection.setFocus("<name of textfield instance>");
fscommand("activateTextField");
2.How to duplicate movieclips in AS3. in AS2 I'm using
<name of movie clip>.duplicateMovieClip();
Thanks
These are two separate questions, both of which are answered online:
Use stage.focus to set the focus on any display object:
stage.focus = name_of_textfield;
There's no direct equivalent to duplicateMovieClip, but you can do approximately the same thing by creating a new instance from the original display object class and copying over properties from the original:
function duplicateDisplayObject(target:DisplayObject):DisplayObject {
var targetClass:Class = Object(target).constructor;
var duplicate:DisplayObject = new targetClass() as DisplayObject;
// duplicate properties
duplicate.transform = target.transform;
duplicate.filters = target.filters;
duplicate.cacheAsBitmap = target.cacheAsBitmap;
duplicate.opaqueBackground = target.opaqueBackground;
if (target.scale9Grid)
duplicate.scale9Grid = target.scale9Grid;
if (target.parent)
target.parent.addChild(duplicate);
if (target.hasOwnProperty("graphics") && target["graphics"] is Graphics)
Graphics(duplicate["graphics"]).copyFrom(Graphics(target["graphics"]));
return duplicate;
}
duplicateDisplayObject(name_of_movieclip);

Using a Numeric Stepper from one Flash file to affect gamespeed in an external Flash file? Actionscript 3.0

Currently I have an intro screen to my flash file which has two objects.
A button which will load an external flash file using:
var myLoader:Loader = new Loader();
var url:URLRequest = new URLRequest("flashgame.swf");
The second thing is a Numeric Stepper, which will be from 1 to 10. If the user selects a number e.g. 3 then the game speed I have set in the flashgame.swf should be changed
Such as:
var gameSpeed:uint = 10 * numericStepper.value;
But I think my problem is coming into place because the stepper and gamespeed are from different files.
Anyone got any idea please?
I have also tried creating a stepper in the game file and used this code:
var gameLevel:NumericStepper = new NumericStepper();
gameLevel.maximum = 10;
gameLevel.minimum = 1;
addChild(gameLevel);
var gameSpeed:uint = 10 * gameLevel.value;
For some reason the stepper just flashes on the stage, no errors come up and the game doesn't work
When you execute you code, the stepper has no chance to wait for user input.
There is no time between theese two instructions.
addChild(gameLevel);
var gameSpeed:uint = 10 * gameLevel.value;
You should wait for user input in your NumericStepper, and then, on user event, set the game speed.
Edit: Yeah I know it's kinda sad to type out all this code (especially since some people wouldn't even be grateful enough to say thanks) but I think this question is important enough to justify the code as it may be helpful to others in future also.
Hi,
You were close. In your game file you could have put a var _setgameSpeed and then from Intro you could adjust it by flashgame._setgameSpeed = gameSpeed; It's a bit more complicated though since you also have to setup a reference to flashgame in the first place. Let me explain...
Ideally you want to put all your code in one place (an .as file would be best but...) if you would rather use timeline then you should create a new empty layer called "actions" and put all your code in the first frame of that.
Also change your button to a movieClip type and remove any code within it since everything will be controlled by the code in "actions" layer. In the example I have that movieclip on the stage with instance name of "btn_load_SWF"
Intro.swf (Parent SWF file)
var my_Game_Swf:MovieClip; //reference name when accessing "flashgame.swf"
var _SWF_is_loaded:Boolean = false; //initial value
var set_gameSpeed:int; //temp value holder for speed
var swf_loader:Loader = new Loader();
btn_load_SWF.buttonMode = true; //instance name of movieclip used as "load" button
btn_load_SWF.addEventListener(MouseEvent.CLICK, load_Game_SWF);
function load_Game_SWF (event:MouseEvent) : void
{
//set_gameSpeed = 10 * numericStepper.value;
set_gameSpeed = 100; //manual set cos I dont have the above numericStepper
if ( _SWF_is_loaded == true)
{
stage.removeChild(swf_loader);
swf_loader.load ( new URLRequest ("flashgame.swf") );
}
else
{ swf_loader.load ( new URLRequest ("flashgame.swf") ); }
swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, Game_SWF_ready);
}
function Game_SWF_ready (evt:Event) : void
{
swf_loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, Game_SWF_ready);
//Treat the Loader contents (flashgame.swf) as a MovieClip named "my_Game_Swf"
my_Game_Swf = swf_loader.content as MovieClip;
my_Game_Swf.gameSpeed = set_gameSpeed; //update gameSpeed variable in flashgame.swf
//also adjust SWF placement (.x and .y positions etc) here if necessary
stage.addChild(my_Game_Swf);
_SWF_is_loaded = true;
}
Now in you flashgame file make sure the there's also an actions layers and put in code like this below then compile it first before debugging the Intro/Parent file. When your Intro loads the flashgame.swf it should load an swf that already has the code below compiled.
flashgame.swf
var gameSpeed:int;
gameSpeed = 0; //initial value & will be changed by parent
addEventListener(Event.ADDED_TO_STAGE, onAdded_toStage);
function onAdded_toStage (e:Event):void
{
trace("trace gameSpeed is.." + String(gameSpeed)); //confirm speed in Debugger
//*** Example usage ***
var my_shape:Shape = new Shape();
my_shape.graphics.lineStyle(5, 0xFF0000, 5);
my_shape.graphics.moveTo(10, 50);
my_shape.graphics.lineTo(gameSpeed * 10, 50); //this line length is affected by gameSpeed as set in parent SWF
addChild(my_shape);
}
The key line in intro.swf is this: my_Game_Swf.gameSpeed = set_gameSpeed; as it updates a variable in flashgame.swf (referred as my_Game_Swf) with an amount that is taken from a variable in the Parent SWF.
This is just one way you can access information between two separate SWF files. Hope it helps out.

Edit movie clip definition as3

I'm a bit new to as3, so forgive me if these are dumb questions. Two questions...
Premise:
I'm loading a character from a swf file, and want to add avatar to it. I have him animated walking and also standing (stand_mc, walk_mc). I also have his body parts separated out, so inside each of the animations mc's is a head_mc, body_mc, etc etc.
First question, how can I access the body parts for any animation? here's my code so far:
var WalkAnim:Class = SWFLoader.getClass('walk_mc'); //Using Greensock loader; but it's the same as using appDomain.getDefinition();
var walkAnim:MovieClip = new WalkAnim();
addChild(walkAnim);
Second question, adding walkAnim just creates an instance of the mc definition. How can I edit the definition in the library to do something like..
var Hat:Class = SWFLoader.getClass('accessory_hat_mc');
var hat = new Hat();
WalkAnim:addChild(Hat)//???
So that if I have multiple instances on stage, they'll all be updated. Thanks in advance for the help!
Basically, to access child elements, you use dot syntax. That would look something like this (last line):
var WalkAnim:Class = SWFLoader.getClass('walk_mc');
var walkAnim:WalkAnim = new WalkAnim(); // I have typed your var as WalkAnim, not MovieClip.
addChild(walkAnim);
walkAnim.head_mc.rotation += 5;
To answer your second question, you wont be able to edit the definition at runtime. You can add an item to each instance though:
var Hat:Class = SWFLoader.getClass('accessory_hat_mc');
var myHat:Hat = new Hat();
walkAnim.head_mc.addChild(myHat);

ActionScript 3 name property is not returning the right name...?

I experienced a problem with the name property in as3, I created this "dot" movieclip and I exported to a class,
then I anonymously created a bunch of dots using a loop. I assigned numbers as name to each dots
private function callDots(num:Number):void
{
for (var i = 0; i < subImagesTotal[num]; i++)
{
var d:Dot = new Dot();
d.x = i*23;
d.y = 0;
d.name = i;
dotContainer.addChild(d]);
}
}
so far so good, I checked that if I trace the name here, I will get the number I want.
However, it's not giving me the numbers if I trace it in other functions.
I added all of my dots to "dotContainer", and if I click on one of the dots, it will call this function
private function callFullSub(e:MouseEvent):void
{
var full_loader:Loader = new Loader();
var temp:XMLList = subImages[sub];
var full_url = temp[e.target.name].#IMG;
full_loader.load(new URLRequest(full_url));
full_loader.contentLoaderInfo.addEventListener(Event.INIT, fullLoaded);
}
e.target.name is suppose to be numbers like 1 or 2, but it's giving me "instance66" "instance70" and I
have no idea why. Because I did the same thing with loaders before and it totally worked.
Any ideas? Thanks.
christine
The e.target returns the inner most object clicked on, this could be a TextField, another MovieClip or posibly a shape (I'm not 100% of the last one) inside the "Dot".
To prevent this you could try to set the mouseChildren property to false on the Dot's when you add them. This should insure that nothing inside the dots can dispatch the click event, and thus the Dot's should do it.
Perhaps you could also in the event handler verify the target type with code like this:
private function callFullSub(e:MouseEvent):void
{
if(!e.target is Dot)
throw new Error("target in callFullSub is not Dot but: " + e.target.toString());
//The rest of you code here
}
The answer is [e.currentTarget.name] I perform this all the time!
Should return "Dot1" "Dot2", etc.
If the value you wish to return is a number or other data type other than a string (name of object) use [e.currentTarget.name.substr(3,1).toString()]
Should return 1, 2, etc.
Navee
I tried to reproduce your problem first with Flex using runtime created movieClips and then with Flash using Dot movieClip symbols exported for ActionScript. Neither application exhibited the problem.
You may already know names like "instance66" "instance70" are default enumerated instance names. So, whatever is dispatching the MouseEvent is NOT the dot instance. Perhaps you are unintentionally assigning callFullSub to the wrong targets, maybe your containers? Try assigning it to dot instance right after you create them, like this:
private function callDots(num:Number):void
{
for (var i = 0; i < subImagesTotal[num]; i++)
{
var d:Dot = new Dot();
d.x = i*23;
d.y = 0;
d.name = i;
d.addEventListener(MouseEvent.CLICK, callFullSub);
dotContainer.addChild(d]);
}
}
Be sure to temporarily comment out your original assignment.
Try this might work,..
d.name = i.toString();
You have not shown enough of your code for me to be able to give you a DEFINATE answer, I will however say this.
//After you create each loader you need to set its mouseEnabled
//property to false if you do not want it to be the target of
//Mouse Events, which may be superseding the actual intended target;
var full_loader:Loader = new Loader();
full_loader.mouseEnabled = false;
//Also you could name the loaders and see if what comes back when you click is the same.
ALSO! Add this to your Mouse Event handler for CLICK or MOUSE_DOWN:
trace(e.target is Loader); //If traces true you have an answer
I believe that the mouse events are being dispatched by the Loaders.
please provide more of your code, the code where the Loader.contentLoaderInfo's COMPLETE handler fires. I assume this is where you adding the loaders to the display list as I cannot see that now.