i came across these things called bitwise operators. After some research i didnt get any further than the fact that they alter bits directly. Then i read something on shifting bits and stuff, and that this would be more efficient it this got me confused. Can you use them to optimize your code? Can someone give some examples of this, like a function and his alternative (using bitwise operators)?
View 9 RepliesHere's an example I ran across:
private function bitwiseAnd(a:int, b:int):int {
var result:int = 0;
var n:int = 1;[code]....
So basically all I need then is bitwiseOr and bitwiseNot and I'm set.The reason is that Pixel Bender doesn't support bitwise ops (inexplicably) but does support various math operations. Also they don't support loops for Flash either, but the above can just be expanded out.I thought about doing bitwise ops without bitwise operators a while back, but couldn't picture how to do it. I wouldn't know how the above was derived logically either.
i came across these things called bitwise operators. After some research i didnt get any further than the fact that they alter bits directly. Then i read something on shifting bits and stuff, and that this would be more efficient it this got me confused. Can you use them to optimize your code? Can someone give some examples of this, like a function and his alternative (using bitwise operators)?
View 6 Replieswhy the script in the movie as shown in the attached file bitwise.gif is not working.I have used 2 instances of buttons and a movieclip (orange box) wiht an onclipEvent( enterframe) handler. the goal was to use the movie clip to monitor if the buttons are clicked once or twice. the movie works if I use the button with (1<<0) only
View 6 RepliesIf I encode all colors into one single float value (RGB) as:
//Each Channels are from 0 - 255
red << 16 | green << 8 | blue;
How can I retrieve those color channels back in AGAL? There doesn't seem to be any bitwise operators.
I want to pack epoch milliseconds into 6 bytes but i have problem. Let me introduce it:
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Is there a direct way how to turn a negative number to positive using bitwise operations in Actionscript 3? I just think I've read somewhere that it is possible and faster than using Math.abs() or multiplying by -1. Or am I wrong and it was a dream after day long learning about bytes and bitwise operations?
What I saw was that bitwise NOT almost does the trick:
// outputs: 449
trace( ~(-450) );
If anyone find this question and is interested - in 5 million iterations ~(x) + 1 is 50% faster than Math.abs(x).
I've written a function that makes all white pixels in an image transparent. This works OK, but the resulting image looks jagged because it only replaces pixels that are solid white. What I'd really like to do is set the alpha value for each pixel proportional to the amount of white in that pixel, then set the RGB value to #000000. I think this would produce a very smooth semi-transparent image. However, I'm not very good at bitwise operations. Can any of you lend a hand?
As an added bonus I'd like to overlay the resulting bitmap on top of another image. I know this is possible via other means, but it would be nice to do it all in one function for performance reasons and simplicity.
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if (myMovieClip.x < 0)How can I combine caparison operators to make this say "if myclip x position is less than zero and greater than -160?
View 2 RepliesI'm trying to pick out the full "player" profile (xml..profilename) information about the player when the name matches eventPlayer - but all I am getting is "True" or "False" - What am I doing wrong?
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Is there another way define my cetegoryReq since I aperantly cant have operators in my variable..
Code:
var categoryReq=("POP"||"ROCK"||"HIPHOP"||"INDY");
var categoryList:XMLList =myXML.item.(category == categoryReq);
I am hardly getting experienced on Actionscript3 but I sometimes get stuck.I want to use complex if function. what I am trying to say is;if, gezegenler.rotation not equal to 0 or 120 or 60 info text = ajdusting.
ActionScript Code:
else if (geegenler.rotation !==0||120||60){
bilgi.text = "adjusting....";}
is this usage possible or not Also, use stage as an event listener to update the textbox. But the event is mouse event and mouse move.. are there any muuch reliable ways doing this? Because when I do not move my mouse it does not change.
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Does anyone know if it's possible to add objects as a whole together using operators rather than breaking them apart or using object.method() format? Below is a simple example of what I would like.
Want to do:
Code:
var obj1 = new MyClass(1,2);
var obj2 = new MyClass(3,4);
obj1 += obj2;
[Code]....
I've the following iteration:
[code]...
The sentence go out for the second option "Incorrect".
For the calculator i am creating i have so far got all d buttons inputting into the display area such as the numbers and the operators. However for the operators when i try to store the value into two number variables 'num1' and 'num2', i traced them to test if they were working fine however they output as 'NaN'. here is the code i have so far and the highlighted area is what i am working on currently
ActionScript Code:
import flash.events.MouseEvent;
var btn:Array = new Array();
for(var i = 0; i < 10; i++) {[code].......
I need to see if the number is stored when i click on d operator. In the trace It is meant to display the number entered after i click on a operator but it displays as 'NaN' I am guessing all of that function has mistakes. it is function pressOperator i am working with
I have a very strange problem with the Auto Format feature in Flash CS4. Sometimes, when I click on Auto Format, it takes away all the spaces between operators and their keywords. But sometimes, it doesn't. why, and how I can prevent this from happening? I REALLY hate it when the IDE does something I don't tell it to.
View 1 RepliesSo i think i have fully coded my calculator but it still doesn't seem to be performing the calculations correctly. I can't see where i am going wrong. If i perform a calculation let's say 6*2 it outputs NaN then i straight away + by let's say 5 it outputs NaN again. And it doesn't make the operators display only once, so if i click on '+' twice it will display twice in the display when it is meant to only display once and in one of my functions i cleared the display field so that it would replace the number's when the next operation is performed but it doesn't seem to be doing that. I have been going over the code several times but i can't seem to identify where the problem is coming from.
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I'm having difficulties with my switch script. Below is the code:
Code:
public function resultValue():void {
switch (_calcSwitch) {
case 0:
break;
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I'm using AS3 in timeline. I'm working on a multiplication game. The idea is to count the number of correct and incorrect answers and give the user a final count. I have several dynamic text boxes: box1 and box2 will multiply each other.box3 = input box; user inputs answerbox4 = message displaysbox5 = correct1; displays correct countbox6 = correct2; displays incorrect count buttonsbt_1 = checks answersbt_2 = resets problems PROBLEM:I CAN'T GET BOX6 COUNT THE INCORRECT ANSWERS. HOW CAN I FIX THIS PROBLEM?
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I'd really like to be able to make Flash's array access syntax 'wrap' over the array's bounds.
Lengthy explanation -
var array:Array = ['a','b','c','d','e','f'];
To keep things simple, the first index is 0, and its value is the first letter, 'a'. To get that value, we'd do this -
array[0]; // returns 'a'
As long as the index you're using to access the array is between 0 and array.length (6 in our example,) everything works fine - but if you use an index outside of those bounds, you're shut down.
array[-3];
array[9]; // both return 'undefined'
Sometimes that's a good thing - sometimes you expect that to happen, and you're fine with it. Other times, you find yourself wishing (or at least I find myself wishing) that it'd behave a bit more like this -
array[-3];
array[9]; // both return 'd'
(e.g. a photo gallery that jumps back to the beginning when you click 'next' on the last photo)There's a little chunk of code I use over and over for this sort of thing, but it's always to alter the index before passing it into the array:
var index = -3;
while(index < 0){index += array.length}
array[index % array.length]; // returns 'd'
... and that's fine, but what I really want to do is extend the Array object itself so that it'll automatically 'wrap' index values that go out of bounds.TL;DR - Is index-wrapping possible by extending Flash AS3's Array object?