I'd like to implement the following logic:
function setMyValue (myVar:int = undefined):void
{
if (myVar == undefined)
{
[code]....
So if the value is supplied, use it. If not, generate it. Seems simple enough.Problem is that AS3 doesn't like this. 'undefined' gets coerced into '0', so myVar is never undefined. I've tried variations with NaN, null, etc, but nothing has worked.
var n:Number = 1;
trace("n is Number:" + (n is Number)); //true
trace("n is int:" + (n is int)); //true
trace("n is uint:" + (n is uint)); //true
[Code]...
They all true! in actionscript, how to tell whether the type of a number if Number or int or uint?
Flex complains if I want to create an object from a library symbol with linkage: 1180: Call to a possibly undefined method [linkage name]. So to avoid this, I create a class for that symbol, in this case extending BitmapData using Flex's new ActionScript Class feature. Flex create that class for me and the constructor looks like this: public function CustomBitmapData(width:int, height:int, transparent:Boolean=true, fillColor:uint=null)
[Code]...
after my preloader i instantiate a screenHandler class which in turn instantiates a transitions class that has a public static property "exitFrames".When i try to check exitFrames from within the screenHandler class i get a 1119 error (access of a possibly undefined parameter ......) below please find the code for the screenHandler AND the code for the transitions class.the error occurs in here:
Code:
if(transTimer == transition.exitFrames){
removeOldScreen();
[code]....
In ActionScript 1 and 2, if you compare undefined, null or NaN with an arbitrary number using >= or <= operator, the result is always true. Test code:
var x, n, range = 1000;
for (var i = 0; i < 3; ++i) {
switch (i) {
case 0:
x = undefined;
[Code] .....
Furthermore, isNaN(null) return true. These are contrary to JavaScript and may not conform with ECMA standard.
I'm attaching as many instances of a MC as my xml child nodes length.So basically never know how many of them would be on the stage.Each MC receive actions to perform, nothing fancy and it basically works.But what I want to do is to know when the user has clicked once on any mc so this latter gets 'not enabled' until another MC instance gets clicked. (so my previous MC instance gets enabled, it acts like radio buttons )The point is I know how to do it when the total of instances is defined.I also know the basics of a loop , but I cannot figure how to set up a "toggle" to gets this 'radio button group behaviour
View 2 RepliesI run into this problem today ... take a look on the code :
import com.trick7.effects.TeraFire;
for (var j:uint=0; j<10; j++) {
var fire:TeraFire = new TeraFire();
[code].....
difference between int, uint and num... when would it be better to use one and not the other type thing?
View 8 Repliesi want my uint to be 0,1, or null.
it appears i cannot assign NaN to a uint, but i can with a number. why is that?
Code:
var num:Number;
trace (num) //NaN
var u:uint;
trace (u); //0
I want an undefined place holder for the uint. In my case i suppose I'll use the number 2 and try to remember it means NaN to me.
Does anyone know how to cast a string into a uint?[code]...
But i keep getting an error stating that there is a mismatch in variable types or i get a value of '65280' when I trace myUint.I understand that uint is a positive integer but i need to accept a string for the colour value and need to convert it to a string for use.
I've imported a color value via XML. Now I would like to convert that String to a uint
PHP Code:
var color1:String = "0x00FF00";
var color2:uint = uint(color1);
trace(color2); // outputs 65280
How do i convert this string into a uint
I have 3 Numbers representing the RGB values of a color that I'd like to convert into a uint. I'm trying this:
var color:uint = r<<16 + g<<8 + b;
but it will always return 0.
I'm working with several components that take color as a uint, but the colors I have are in the format of "#161616". I'm not sure what the relation between the 2 types of colors are or how to go from one to another.It doesn't have to be an actionscript solution. I have only a small number of these colors, so can be done manually too.
View 4 RepliesI am trying to encode certain values that I receive from keyboard event. Basically I want to check if a certain key combination has been pressed or not, so for that I am converting the key codes into sequence/pattern and store it in an object and a value(function) against each code sequence. Now I have to use four bytes and in first byte(MSB) I've to store shift, alt, ctrl respectively and in the last(LSB) I have to store the keycode of the key pressed.
Here is the code:
private function m_encodeValue(key:String, Ctrl:Boolean = true, Alt:Boolean = true, Shift:Boolean = false):uint {
var encodedValue:uint;
encodedValue = uint(Shift) << 2 | uint(Alt) << 1 | uint(Ctrl);
encodedValue = encodedValue | (uint(key.toUpperCase().charCodeAt(0)) << 24);
return encodedValue;
}
I have a uint that i'd like to create a Color object out of so I can manipulate the tint as desired.
Code:
public static const red_dark:uint = 0xe80505;
How can I create a Color object out of the above uint?
[URL]
How to get r, g, b from uint pixel? I mean separate variables
View 2 RepliesI am new to the concept of Bitwise operations, and was messing around with some examples today. Everything seemed clear up until the point I tried to make a function to perform a circular bitshift on a uint:
private function rotateLeft(value : uint, shift : int) : uint {
if ((shift &= 31) == 0)
return value;
return (value << shift) | (value >> (32 - shift));
}
I was trying to shift a colour value (e.g. 0xFF0000) and expecting something along the lines of 0x0000FF, when in actual fact I was getting 0xFF000000 (which is correct, due to the length of a uint) - the most significant bytes are for the alpha value.
Is there an easy way to multiply a color that is stored in an uint? Basically what I would like to do would be applying a colorTransform-Object (like ColorTransform(1.2,1.2,1.2,1,0,0,0,0))to the uint and get the new value in return, but it will not work. Will I have to convert it into RGB first or am I missing something here?
View 2 RepliesCan we skip an optional parameter and assign value to the parameter after the skipped one?
For example I have a function:
public function Dialog(message:String,title:String="Note",dialogsize:int=99):void
{
}
I can easily call the function with a message and a title:
Dialog("HELLO","Intro");
Is there a way to skip the title and just pass in the dialogsize? I've tried it but can't make it work:
Dialog("HELLO",,dialogsize);
Is it possible to skip some optional parameters without using (rest) parameter?
I am trying to read a XML file and check a parameter for duplicates of that parameter in the file. There could be up to 200 entries with this parameter which is a number. How can I check to see if there are any duplicates?
View 2 RepliesDear Guys I Want To Generate A Random Number Between 2 Number BUT Without Generating 2 Same Number I Mean If For Example Already Generated Number "2" Next Time Did Not Generate It , Is There Any Solution
View 5 RepliesWhat I want to achieve is pretty basic: I have an input text with instance name (contact_date) and I want the information the user enter in this input field to be kept in a variable that I can reuse later on in my movie.
View 2 RepliesCode:
if (teamA>teamB) {
gotoAndPlay("teamA_wins", 1);
//playerOne wins
[code]....
this is the code i am using if i wanted to add in the effect of a tie, what would the code be for that. i am thinking it might be
Code:
if (teamA>teamB) {
gotoAndPlay("teamA_wins", 1);
//playerOne wins
[code]....
im having problems getting some as3 generated (not drawn on stage) movie clips moving across the screen.
Code:
package {
import flash.geom.ColorTransform;
import flash.display.MovieClip;
import fl.motion.Color;
import flash.display.*;
[code]....
Forgive me for this stupid noob question but I want to call a function (loadList) that originally gets triggered after a mouseevent from another function (addToXML) that does not have an event.
The loadList function takes info from a XML var, sticks it into an array which then gets loaded into a tile list and that is working fine.
The addToXML function when called adds elements to the XML var after which I want to call the first function with the event parameter so it refreshes the items in the tile list.
I know it can do this by creating a new array and loading that into the tile list in the addToXML function, but it be much simpler to just recall the function.
I have tried things like
Code:
addToXML.addEventListener(Event.COMPLETE, loadList);
but all the event constants I have tried give me error messges like "1061: Call to a possibly undefined method addEventListener through a reference with static type Function."
I found this in an ActionScript class in flex.
protected::valueMin know what this exactly means. at the outset, I dont see any type declaration. I am a newbie in flex.
I have 26 buttons in my library named BUTNA, BUTNB, BUTNC, etc. all the way to BUTNZ.
I want the script to pick a random button from the library and place it on the stage.
I am probably doing this wrong, but I am lost.In my script, I need the variable btnp1 in place of BUTNZ in line 8.I don't know how to do this.[code]...
I have a simple math game where the user enters his answer and clicks a button. The problem I am having is that if the answer is wrong, the numbers in the question do not change on the screen but but in the actionscript, the variables being used to check the answer change. How do I get the variables to stay the same when the user's answer is wrong? Not redeclare all of the variables.
Code:
var num1:uint = Math.Random()*1000;
var num2:uint = Math.Random()*1000;
var sum1:uint = num1 + num2;
[Code].....
I Want To Generate A Random Number Between 2 Number BUT Without Generating 2 Same Number I Mean If For Example Already Generated Number "2" Next Time Did Not Generate It,
View 4 Repliesi am using flash, .Net, and MySQL and have elements (text fields) posting in flash.Question is, if the table in the data base is not holding the var char how can I set the text field in flash to not show undefined and just be blank?
View 6 Replies
