Rendering text in AS3 - actionscript-3

I'm having a bit of confusion about how to render text in a pure AS3 project. There are classes like flash.text.StaticText but these are designer-only, you can't create them in code. I was half-expecting the Graphics class to have text-rendering options but alas, no.
Specifically I was going to add a label above each player's sprite with their name, health %, etc. So I expected to add a child text-element or draw text using Graphics in some way... it's read-only and should not support user-input, I just want to draw text on-screen.

You can use TextField class for this. Please check the reference. All fields and methods are self explanatory.
A possible example.
var myField:TextField = new TextField();
myField.text = "my text";
myField.x = 200;
myField.y = 200;
addChild(myField); // assuming you are in a container class

If TextField doesn't work, you can create text using this method:
var format:ElementFormat = new ElementFormat();
format.fontSize = 26;
format.color = 0x0000FF;
var textElement:TextElement = new TextElement('Hello World!', format);
var textBlock:TextBlock = new TextBlock();
textBlock.content = textElement;
var textLine:TextLine = textBlock.createTextLine(null, 500);
textLine.x = (stage.stageWidtht - textLine.width) / 2;
textLine.y = (stage.stageHeight - textLine.height) / 2;
addChild(textLine);
Look at:
Creating and displaying text in ActionScript 3.0 Developer’s Guide

Related

AS3 - Change MovieClip-Color Using Filters

I wonder how I can create an "Adjust Color"-filter in AS3.
I created a red box in Photoshop (8x8px), saved it as a PNG-file, then I imported it to Flash. I converted the file to a MovieClip-symbol. I applied an "Adjust Color"-filter. With that I can change the color easily, but I want to get the same effect in AS3.
Does anyone have a clue on how?
Thanks:)
To change MovieClip color use ColorTransform class and transform.colortransform property of the MovieClip:
var ct:ColorTransform = new ColorTransform();
ct.color = 0xCFFF54;
yourMovieClip.transform.colorTransform = ct;
Advanced method
Using this method you can change brightness, contrast, etc.
import fl.motion.AdjustColor;
var adjustColor:AdjustColor = new AdjustColor();
adjustColor.brightness = 50;
adjustColor.contrast = 50;
adjustColor.saturation = 50;
adjustColor.hue = 50;
var matrix:Array = adjustColor.CalculateFinalFlatArray();
var colorMatrix:ColorMatrixFilter = new ColorMatrixFilter(matrix);
yourMovieClip.filters = [colorMatrix];

AS3 - setTextFormat(), defaultTextFormat not working as designed?

UPDATED with simpler snippet
I am building a Flash swf to check through some XML files using AS3.
I only have access to the Flex compiler, not the actual Flash IDE or Flashdevelop, so all my xml checking code is a single AS file, compiled into an swf. In order to display information, I create and add a TextField and call appendText() (I use += in this snippet).
The snippet below seems to not set the new format on existing text. It appears to not have any effect whatsoever on the text.
I was under the impression that setTextFormat would change the existing text and that any new text added after calling setTextFormat would use the defaultTextFormat object. This does not appear to be the case in my code. Am I incorrect in my understanding?
public function AS3Tester()
{
display_txt = new TextField();
display_txt.multiline = true;
display_txt.width = 1024;
display_txt.height = 768;
var tf:TextFormat = new TextFormat();
tf.size = 12;
tf.font = "Lucida Console";
display_txt.defaultTextFormat = tf;
display_txt.text = "Text Before setTextFormat\n"; //Should use default style tf
addChild(display_txt);
var tf2:TextFormat = new TextFormat();
tf2.size = 18;
tf2.color = 0xFF0000;
display_txt.setTextFormat(tf2);
display_txt.text += "Text after setTextFormat\n"; //previous line should use tf2, this new line should use default tf
}

AS3 multiple textfields made easy

I am working on a Results page for my game as well as upgrade page and looking for an easy way to do many textfields. I have a format for my text that takes care of font, colour, and size, but looking for an easy way to do the width and height of textfields to increase all at the same time.
I have been informed about a "with" keyword that may work but do not understand how to implement this within my program and essentially want to shorten my results class if possible.
Thank you,
The best way would be to create a custom function for generating textfield.
The example can be found in the livedocs itself.
So something like the following should suffice :
private function createCustomTextField(x:Number, y:Number, width:Number, height:Number):TextField {
var result:TextField = new TextField();
result.x = x;
result.y = y;
result.width = width;
result.height = height;
return result;
}
You may also set a default value to each attribute in the function.
private function createCustomTextField ( x:Number= <Default Value>, ...
Use it to add a textfield inside the container form.
var container:Sprite = new Sprite(); // New form container
container.addChild(createCustomTextField (20,20,50,50)); // Text Filed 1
container.addChild(createCustomTextField (20,50,50,50)); // Text Filed 2
addChild(container); // Add to current class
You may want to modify the function to accept a name so that each variable can be accessed later.
As far as I am aware, you can't use a "with" keyword to target multiple objects. Here's the documentation for it: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/statements.html#with
What I've done in the past is just make an array of all the targets, and then write a loop to apply properties to each:
var textFormat:TextFormat = generateMyCustomTextFormat();
var textField1:TextField = new TextField();
var textField2:TextField = new TextField();
//...
var textField3:TextField = new TextField();
var targets:Array = [textField1, textField2, textField3];
for(var i:int=0; i<targets.length; i++)
{
targets[i].defaultTextFormat = textFormat;
targets[i].width = 250;
//...
}

Why can't I display embedded fonts in AS3?

I have gone through all topics on Embedding fonts in AS3 I could find,a nd tried all solutions. I'm probably missing something obvious, but I don't fully understand what I'm doing so please guide me in the right direction. Many of the answers involve Flash Builder or another tool but I use FlashDevelop. No idea whether that matters.
I have this line in my Main.as:
[Embed(source = "assets/SKA_75_marul_CE_extended.ttf",
fontName = "SKA_75_marul_CE_extended",
fontWeight = "bold",
advancedAntiAliasing = "true",
mimeType = "application/x-font")]
public static var SKA_75_marul_CE_extended:String;
And this exists in the constructor of an extended Sprite called Pointer.as:
var format:TextFormat = new TextFormat();
format.font = "SKA_75_marul_CE_extended";
format.color = 0xFFCCCC;
format.size = 20;
var label:TextField = new TextField();
label.defaultTextFormat = format;
label.text = "test";
label.embedFonts = true;
label.antiAliasType = AntiAliasType.ADVANCED;
//label.setTextFormat(format); --> I tried this too, didn't work...
label.defaultTextFormat = format;
label.x += img.width + 50;
this.addChild(label);
The only way I've found to get it to display anything is if I turn off embedFonts. I've tried embedding C:/windows/fonts/arial.ttf without success.
It seems that embedding fonts is a dark art like no other and I must concede after 1 hour of struggling. Please send help.
UPDATE:
Here's the working code, turns out it was due to having the correct order of operations...:
[Embed(source="assets/SKA_75_marul_CE_extended.ttf",
fontName = "myFont",
mimeType = "application/x-font",
fontWeight="normal",
fontStyle="normal",
unicodeRange="U+0020-U+007E",
advancedAntiAliasing="true",
embedAsCFF="false")]
private var myEmbeddedFont:Class;
var tf:TextFormat = new TextFormat( "myFont", 20,0xffffff );
var t:TextField = new TextField;
t.embedFonts = true; // very important to set
t.defaultTextFormat = tf;
t.text = text;
t.x += img.width + 50;
t.width = 700;
this.addChild( t );
It's most DEFINITIVELY a "dark art" to get embedded fonts to work right. I would first check if "SKA_75_marul_CE_extended" is the actual name the font has in its metadata (I used Suitcase Fusion to extract the name). I've also seen TTF fonts that Flash simply refuses to embed (perhaps invalid metadata causes the embed system to fault). I would continue testing with a known working font until you find the actual problem in case it is a font file problem.
One thing I noticed is "public static var SKA_75_marul_CE_extended:String;"... shouldn't this be of type Class?
FlashDevelop font embed reference from someone who had issues:
http://www.flashdevelop.org/community/viewtopic.php?p=28301

Set text outlining / border in Actionscript 3.0

How can I set the properties for the text outline / border for each character in a line of text in AS3 ?
I don't think you can. What you can do is use a blur filter to mimic the appearance of an outline. Just paste this into an empty AS3 movie:
var txt:TextField = new TextField();
this.addChild(txt);
txt.appendText('Lorem ipsum');
txt.autoSize = TextFieldAutoSize.LEFT;
txt.antiAliasType = flash.text.AntiAliasType.NORMAL;
txt.selectable = false;
var txtFormat:TextFormat = new TextFormat();
txtFormat.size = 40;
txtFormat.font = 'Helvetica';
txt.setTextFormat(txtFormat);
txt.defaultTextFormat = txtFormat;
var outline:GlowFilter = new GlowFilter();
outline.blurX = outline.blurY = 1;
outline.color = 0xFF0000;
outline.quality = BitmapFilterQuality.HIGH;
outline.strength = 100;
var filterArray:Array = new Array();
filterArray.push(outline);
txt.filters = filterArray;
Try playing with the strength, blurX, blurY and quality properties, in order to obtain different appearances. I think that's about the closest you can get to a text outline.
PS: font embedding would greatly improve the quality of the effect, as well as making the antialias work properly.
i am not shore i understand but you can use same kind of
filter on the testbox and by doing so you can get a same kind of a border
in each one of your letters