I have 13 bodies on the nape space (5 static and 8 dynamic),
when i loop through bodylist to remove dynamic bodies, the loop reads only 9 bodies(5 static and 4 dynamic)and ignores the 4 other dynamic
however the bodylist length gives me 13 when tracing it
anyone has any idea what is the problem might be?
I create the body with click
var body:Body = new Body(BodyType.DYNAMIC);
and when removing
var bList:BodyList = space.bodies;
for(var i:int = 0; i< bList.length; i++)
{
var bod:Body = bList.at(i);
if(bod.type == BodyType.DYNAMIC)
{
bod.space = null;
}
}
Related
It shows an error when written this script has a package that cannot be nested how can I resolve the problem.
If not can anyone give me a new code so that I can try to make the new file?
I have this file in previous stack AS3 Bingo ticket generator
but i couldnt understan how to use it.
package {
import flash.display.Sprite;
import flash.text.TextField;
public class Main extends Sprite{
public var boards:Array = new Array();
private static const AMAUNT_BOARDS:uint = 6;
private static const NUMBER_FIELD_SIZE:uint = 20;
public function Main() {
for(var i:uint = 0; i < AMAUNT_BOARDS; i++)
{
var numbers:Array = genNumbers();
numbers = deleteFields(numbers);
var board:Sprite = getBoard(numbers);
board.y = NUMBER_FIELD_SIZE * 4 * i;
boards.push(board);
addChild(board);
}
}
//generates a 2 Dimensional Array (3x9) with TextFields
//populates the according Numbers and returns a board Sprite
private function getBoard(n:Array):Sprite
{
var s:Sprite = new Sprite();
var a:Array = new Array();
for(var i:uint = 0; i < 3; i++)
{
var b:Array = new Array();
for(var k:uint = 0; k < 9; k++)
{
//create TextFields
var tf:TextField = new TextField();
tf.x = k * NUMBER_FIELD_SIZE;
tf.y = i * NUMBER_FIELD_SIZE;
tf.border = true;
tf.width = NUMBER_FIELD_SIZE;
tf.height = NUMBER_FIELD_SIZE;
if(n[k][i] != 0) // adds the number if the value isn't 0
tf.text = n[k][i]; // Note that i am switching k & i because the number Array is 9x3
b.push(tf);
s.addChild(tf);
}
}
return s;
}
// Turns 4 random numbers out of the lines into 0 And returns the Array
private function deleteFields(a:Array):Array
{
for(var i:uint = 0; i < 3; i++)
{
var r:RandomPlus = new RandomPlus(8,0);
for(var k:uint = 0; k < 4; k++)
{
var t:uint = r.getNum();
a[t][i] = 0;
}
}
return a;
}
// Generates and returns a 2 Dimensional Array (9x3) with random numbers
private function genNumbers():Array
{
var a:Array = new Array();
var st:uint = 1;
var en:uint = 9;
for(var i:uint = 0; i < 9; i++)
{
var line:Array = new Array();
var ran:RandomPlus = new RandomPlus(en,st);
if(i == 0)//accounting for the number differnenz at start
st--;
if(i==7)//accounting for the number differnenz at end
en ++;
st += 10;
en += 10;
for(var e:uint = 0; e < 3; e++)
line[e] = ran.getNum();
a.push(line);
}
return a;
}
}
}
TL;DR: "Main" in the class definition may have to be changed conflict of already existing name. Extends sprite may need to be changed to extends movieclip. RandomPlus either needs an import you don't have or needs to be made into a symbol and exported to Actionscript.
Ok, so a few things:
If you are really putting the code into the stage code area, then you can't use the private identifier.
Unless RandomPlus is an object that you have defined in the stage it is probably either not a method you can use or you don't have the right imports for it. Look up what imports you need for RandomPlus or if it is an object defined in the stage then you may need to turn it into a symbol or if you have already export it to flash ActionScript I think. To do this you have to check the checkbox in the middle of the symbol creation page. It will always give you the error when you do this, but don't worry it is fine that way.
Third thing is that I never extend sprite in the class definition, I always do extends movieclip(not sure of the capitalization, but you can look that up). You may also be running into an error from using "Main" as the name because it may be a conflict with a name or method already defined in flash in general.
One last thing is for the variable declaration(mostly just for making the code more readable). While it is good to not declare variables as global when you don't have to, I tend to like having most of the variables up at the top, because I like to be able to see most of the declarations in one space. It's not necessary, really just a personal opinion, and I know a lot of experienced coders will say to do what you did, but if you want to use the arrays in multiple functions then sometimes it is easier to just declare them globally rather than having to pass a million things in the function call and then having to figure out later where all the variable declarations are called and where they are being passed as arguments. Again it's more of a coder's choice, but you can also just do whatever you feel more comfortable with rather than just following the already laid out rules by people who have more experience coding.
Another optional fix to the organization might be to name variables something meaningful so as to not forget what they are all doing. I am bad at naming as well, but I think it's really better to name them something better than just a single letter or two.
Another thing that can help is placing trace(code or "text"); in different places to see what's going wrong once you have the compiler happy.
I have been working on a flash project and I am making an achievements display with each achievement progress complete and reward for completing. I would like to add multiple textFields to the stage and add text to each one individually. I have 30 text boxes and I think there is a better way of adding them than making different classes for each.
public var progress1:textField = new textField();
public var progress2:textField = new textField();
public var progress3:textField = new textField();
public var progress4:textField = new textField();
...And so on until 30
Is there a way of adding them and changing their text with a for loop because this does not seem like an efficient way to do it.
I also have to add a movie clip to the stage 30 times and change its y each time is there a way of making that in a for loop.
You can keep the textfields in a vector like this.
var texts:Vector.<TextField> = new Vector.<TextField>();
var num:int = 30;
for (var i:int = 0; i < num; i++)
{
texts.push(new TextField());
}
//change the text in a loop;
var content:Array = ["text1", "text2" ...];//the contents for the texts to show
var max:int = Math.max(content.length, texts.length);
for (var j:int = 0; j < max; j++)
{
texts[j].text = content[j];
}
Working on a flash game, in a previous game I had enemies come in by using an array and when they were killed or moved off the stage I would just remove them from the array. For some reason when I use exactly the same code in this game, it throws a 1009: error when I try to remove the array object, basically saying that there's nothing there. . . Which is strange.
Here's the code:
public function addZombie()
{
var zom:Zombie = new Zombie();
zom.y = 20;
zom.x = Math.floor(Math.random()*(1 + 500 - 30)) + 30;
addChild(zom);
zombies.push(zom);
numZombies++;
}
That's the function where it's added in, zombies is the array and it's pushed into the array in this function. Here's the code where I'm attempting to remove it:
for (var i:int = 0; i < zombies.length; i++)
{
if (zombies[i].y + zombies[i].height / 2 > 400) {
removeChild(zombies[i]);
zombies.splice(i,1);
numZombies--;
addZombie();
}
}
removeChild(zombies[i]); <-- This is the part that throws the error when it attempts to remove it. It removes some of them strangely enough, but not all of them.
I don't believe the loop is doing quite what you expect it to. When you remove an element from an array in this way, all the elements after the removed elements are moved down. So, if you have code like:
var testArr:Array = new Array();
testArr.push('First');
testArr.push('Second');
testArr.push('Third');
testArr.push('Fourth');
for (var i:int = 0; i < testArr.length; i++) {
testArr.splice(i,1);
}
The results of the loop will be:
i=0, testArr = ['Second', 'Third', 'Fourth']
i=1, testArr = ['Second', 'Fourth']
i=2 END OF LOOP
It would probably be better to use a while loop, incrementing the index only if the element is not removed (since removing the element moves a new element to that index position).
I don't see why you're getting the null object reference, but this would be causing other problems (why some are removed but not all).
The explanations of Bill Turner are the correct ones, but as it didn't seem to help you fix your issue, you might want to try this:
var zombieCount:int = zombies.length;
for (var i:int = 0; i < zombies.length; i++)
{
var zombie = zombies[i];
if (zombie.y + (zombie.height / 2) > 400) {
removeChild(zombie);
zombies.splice(i,1);
i--; // So that the loop will pass with the same value next time
numZombies--;
}
}
for (var j:int = zombies.length; j < zombieCount; j++)
{
addZombie();
}
I have a couple of display objects moving around the screen, the all belong to the same Vector.
I would like to create a function that lets me pick an object with the lowest x value at the moment the function is called.
This is quite easy and if you're into programming, you should be able to do it yourself, but if you're a beginner, I'll give you some code:
var vec:Vector.<DisplayObject> = new Vector.<DisplayObject>();
function getLowestXObject():DisplayObject
{
var minX:DisplayObject = vec[0];
for(var i:int = 1; i < vec.length; i++)
{
if(minX.x > vec[i].x)
{
minX = vec[i];
}
}
return minX;
}
I'm pulling an xml and using a for loop to create a thumb list. This list is going to be quite long but I only 25 thumbs to be loaded at a time, so that the next 25 is only loaded when a user hits a button. I know how to set up a for loop in a function, but I can't quite figure out how to break up a loop where it would stop and start. I was thinking I would call the function each time a button is pressed and the loop would pick up where it left off with the next 25.
I thought maybe I could substite other variables into the for(); but everything I've tried breaks it. I tried pulling the var i:int = 0; out of the for so the function could set the i, but I guess I'm not clear on exactly how the for loop works.
What I'm doing:
function loadarticleHeadlines():void
{
for (var i:int = 0; i < egarticleXml.articlelist.articleitem.length(); i++)
{
vsThumb = new articleBox();
vsThumb.alpha = 0;
vsThumbLoader = new Loader();
vsThumbLoader.load(new URLRequest(egarticleXml.articlelist.articleitem[i].articlethumbnail));
articleListContainter.addChild(vsThumb);
vsThumb.articleImage.addChild(vsThumbLoader);
vsThumb.articleTitle.text = egarticleXml.articlelist.articleitem[i].articletitle;
titleAutosize(vsThumb.articleTitle);
vsThumb.x = next_x;
next_x += 260;
articlevsThumb[i] = vsThumb;
//vsThumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, showBox);
vsThumb.clickBtn.buttonMode = true;
}
}
Try this out.
var xml:Array = [];
for(var i:int=0;i<100;i++)
{
xml.push(i);
//array from 0-99
}
var xmlPosition:int = 0;
grabXML(xmlPosition);
//25
grabXML(xmlPosition);
//50
grabXML(xmlPosition);
//75
grabXML(xmlPosition);
//100
function grabXML(position:int):void
{
for(position;position<xml.length;position++)
{
trace(xml[position]);
//yields 0-24, 25-49, 50-74, and 75-99
if(position === xmlPosition + 25)
{
break;
}
}
xmlPosition += 25;
}
I'm breaking as soon as the parameter is 25 more than its original value (xmlPosition). Calling the function additional times will yield nothing, as xmlPosition is greater than xml's length property.