ActionScript 2.0 :: Tracking Array Index Of An Instance?
Sep 9, 2011
I'm trying to keep track of several movie clips with an array, but I'm running into some issues. I'm making a shooter game that requires hitTesting a list of projectiles and removing the projectiles from the list when they leave the screen or hit stuff. I've got the projectiles being added to the stage with this:
[Code]...
At first that appeared to work fine, but the bullets aren't always removed in the order they were created, so when I remove one from the array in this manner, it shifts the index numbers for all the ones that came after it back one, thus making their "num" variable no longer correspond to their index number; so when they try to splice themselves, they end up splicing the wrong ones. (Like, if I removed [3], the bullet that was in [4] is now in [3], but it doesn't know that, so it tries to splice [4], which now refers to whatever was in [5], and so on.) What's the correct way to handle this kind of situation? I feel like I must be missing something obvious, but I haven't been able to figure out a solution.
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Apr 29, 2009
Is it possible to return the index of the first instance of a specified value within an array? Similar to:
Code:
var my_string = "string";
var index = my_string.indexOf("g");
/*Outputs:
1
*/
Basically, I have two arrays, each with 10 values (in slots 0-9 of the arrays). So I need to see if an array has a specified value in it, but then I have to see if the other array has a certain value in it, in the same spot as the first instance of what I search for in the first array.
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Aug 16, 2011
I think it would be simplest to explain it like this:
[Code]...
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Jun 22, 2011
So, for sending to individual streams we have to reference the connected netStream we want to send to in some way like this:
sendStream.peerStreams[0].send("MyFunction",param1,param2);
and I have to determine which peer I'm sending to by their ID such as "peerID1234"
I know that you can check the peerID of the stream by doing:
sendStream.peerStreams[0]["farID"]
how can I make my send stream function know to use the array index where the peerID is?
so basically it could be like:
sendStream.peerStreams[where peerStreams[]["farID"] == peerID].send("MyFunction",param1,param2);
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Feb 23, 2010
So I've got a button that spawns a block and when pressed spawns another to the right of that block, if pressed again the process repeats. These blocks are all placed into an Array. When the user click on the blocks, they are removed.I would like the blocks to track their position in the Array so I can splice out the value on click and all the other "building spots" will move to their Array position * building spot width, so when a block is cut out, the others all move a long and remove that space.Since Arrays aren't my strong point, I wish to see what you think would be the best option here. Now keep in mind I am not a Flash Pro, so the way I have coded may not be the best, but I like to think I try Here is the code currently:
ActionScript Code:
onClipEvent(load){
}
[code]......
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Mar 9, 2004
I've been reading through all the various threads related to the drawing API and saving drawings. About a hundred times I've seen mention of "log mouse positions into an array" and stuff like that, but I can't find any clear and simple examples of how to do this. Let's take a very simple use of the drawing object to do freeform drawing. What is the AS to capture the mouse XYs as the user draws and put that into an array. I can't figure out how to get Flash to keep updating things as I go, it invariably grabs the fist point and that's it.
Let's use the most basic drawing example I can find:
[AS]_root.createEmptyMovieClip("line",1);
_root.onMouseDown = function(){
line.moveTo(_xmouse,_ymouse);
line.lineStyle(0,0x000000,100);
this.onEnterFrame = function(){
line.lineTo(_xmouse,_ymouse);
}}
_root.onMouseUp = function(){
this.onEnterFrame = null;
}[/AS]
Where/what gets added to just capture all those _xmouse and _ymouse?
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Jan 18, 2009
I've got two rather large arrays which I put a bunch of movieclips into and I'm just stumped on how I can possibly track if a specific movieclip in the array is right or wrong. Determing right/wrong is something I need to be able to set and then check again later when a function getItem is called.
Code: Select allvar mcArray:Array = new Array();
mcArray = [movieClip01, movieClip02, movieClip03];
button.addEventListener(MouseEvent.CLICK, getItem);
[code]...
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May 27, 2009
I've got two rather large arrays which I put a bunch of movieclips into and I'm just stumped on how I can possibly track if a specific movieclip in the array is right or wrong. Determing right/wrong is something I need to be able to set and then check again later when a function getItem is called.
I just quickly made this example code because the actual file's code is much longer and contains a bunch of other code that is irrelevant to this issue.
Code: Select allvar mcArray:Array = new Array();
mcArray = [movieClip01, movieClip02, movieClip03];
button.addEventListener(MouseEvent.CLICK, getItem);
function getItem(e:MouseEvent):void {
[Code].....
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Feb 15, 2011
I have used a method to shuffle a part of a Array, but i noticed that it does not work very well.When i run this method I sometimes get empty array values.So if you would try the example below and test it out some times you would get a right result but sometimes a wrong result.For example when i run this i get in my trace output:
a,b,c,d,g,,e,f (here after the g it goes wrong)
a,b,c,f,g,d,e (here it goes right)
a,b,c,d,,g,f,e (here it goes wrong)[code]...
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Mar 9, 2004
I've been reading through all the various threads related to the drawing API and saving drawings. About a hundred times I've seen mention of "log mouse positions into an array" and stuff like that, but I can't find any clear and simple examples of how to do this.
Let's take a very simple use of the drawing object to do freeform drawing. What is the AS to capture the mouse XYs as the user draws and put that into an array. I can't figure out how to get Flash to keep updating things as I go, it invariably grabs the fist point and that's it. Could one of you AS gods just write out a super simple routine for this? I know I'm not the only one that needs this (as it seems to be asked every week) Let's use the most basic drawing example I can find:
[Code]...
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May 24, 2011
I am trying to get the index of an object which is an instance of a class. I need to get the index from within the class.So I have an instance of a class. When its clicked I need to get the index. I dont really know how to write this. I tried a few things like:[code]
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May 17, 2010
I have a ComboBox, with it prepopulated with the States.When I have a variable that says it should be pre-selected to for example CA, how do I do that, without haveing to figure out the index number for every single state?
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Nov 30, 2010
Upon the stage of my flash movie, I have several symbols (movie clips) which I need to address dynamically using a loop. The symbols that I want to address all have instance names beginning with the string "lamp_", they then each have a different number concatenated on the end to distinguish between them (e.g. lamp_1, lamp_2, lamp_3.....).
The following noobish effort I have devised is totally useless, and I am hoping someone can show me how I might get this working[code]...
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Sep 25, 2009
Is there a way to get the index of an array?
For instance, if I have an array:
buttons = Array("abc","def","ghi");
If I wanted to get the index dynamically of the string "ghi", could I do that with a certain function or piece of code?
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Mar 11, 2010
I thought that there was a way to be able to name array indexes. Like instead of myArray[0], it could be myArray["tileFour"]. I thought that instead of using index numbers one could use index words.
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Sep 25, 2009
Is there a way to get the index of an array?
For instance, if I have an array:
buttons = Array("abc","def","ghi");
If I wanted to get the index dynamically of the string "ghi", could I do that with a certain function or piece of code?
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Jan 18, 2011
I have a game map made of tiles, each tile is stored in an array called _tiles.The very each tile has a "plantable" parameter, which determines whether or not something can be placed on it.Then i loop through the array and check the position of each its elements against the mosue cursor, so I know which tile am I hovering with my mouse.
And it works pretty good. The problem is that even though I know what is the position of the tile I'm having the cursor on, I still lack the knowledge of what index is that tile. I simply can't tell where exactly in the array is placed this tile. I just know its position. The reason why I want to know the index of it, is because it's the only way for me to set a proper flag, namely whether it's plantable or not. Here's the code:
ActionScript Code:
for(var j:int = 0; j < _tiles.length; j++)
{
[code]...
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May 18, 2005
Is there a way I could specify the index of a array using this short code:[code]How would I go about giving a custom index name instead of it being myArray[0]? I could do it the long way like posted below, but I was wondering the there was a way to shorten this:[code]
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Jan 18, 2007
i have an array of names that looks like this. var aNames:Array =new Array("jack","mike","Scott")
i have a text field called names which displays index 1 of the array.
and i have a button,when the button is pressed i want it to go to the next index of the array.
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May 18, 2005
Is there a way I could specify the index of a array using this short code:
Code:
var myArray = new Array("teste");
How would I go about giving a custom index name instead of it being myArray[0]? I could do it the long way like posted below, but I was wondering the there was a way to shorten this:
Code:
var myArray = new Array();
myArray[myCustomIndex] = "testing";
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Jul 13, 2010
I am curious if this is an okay implementation of the Array.filter() method.
[Code]...
I was not able to figure out an implementation of the callback function for the filter() method, where the callback was outside of the getGallery() function. I wonder if there is a way to get the isGallery function outside of the getGallery scope?
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Jan 29, 2009
Consider an array with x number of elements (of type Object) where some of the elements might be undefined.I use a for-each loop to access all the elements of the array that is not undefined (since it simply skips the undefined elements).But I also want the index of that particular element.The only option I can see is to use indexOf(). But it feels a bit like looking for water on the other side of the river so to speak.
When looping through long arrays each frame, is there a change indexOf() might slow it down? or does the for-each loop somehow know what index it's dealing with?
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Oct 30, 2009
I am working with a set of external XML data, and putting it into arrays. I have set up images and text on a page using XML data, which, when clicked on, will populate a popup window with XML data from the same index. For some reason, when I trace the index of the array, it comes up as -1.
stop();
itemNameTops1_txt.text = nme_array[0];
itemPriceTops1_txt.text = price_array[0];
[code]....
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Jun 15, 2011
I have a tricky problem in that I have an array that has been populated with strings ("item1", "item2", etc). However, at a certain point I need to pull one randomly out of the group, via a random number function. The issue is I cannot reference the items in the array by a number, I get an error. So when I try to get myArray(5) it doesn't work.
How can I work around this so I can grab a random item in my string array?
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Jan 18, 2012
I am creating a row which have 8 thumbnails in it, I save these in a array, When user drag row right to left then first Movieclip shift to last position, then i splice array 0 index and push to last position.. it works fine but when i drag it left to right then I need to cut last index of array and i need to push on first position, but it is overwrite the last value of array and after push the value(myrow[0]=thumb) array showing it's length 7 before it was 8. What is the right way to push value at 0 index value
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Apr 10, 2012
I have an array 'cat', 'dog', 'budgie'
and want to remove the item by index.
At the moment I have
function removeit(myindex) {
animals[myindex] = animals.pop()
}
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Feb 1, 2010
I got a problem with processing an array in actionScript. I removed the last element of an array through array.pop(). After that I would like to put this removed display-object back to the beginning of the array: array.unshift(object). The object is now the first element of the array but it got still its old label (number of the last element). Therefor I can't update the position (graphically) of the display object. Is it possible to "reindex" the array?
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Mar 30, 2010
var arr1:Array = new Array();
arr1.push(item1);
arr1.push(item2);
arr1.push(item3);
then arr1 and its elements get passed to other functions is there a way to know the index of an item in the array?
GetParentArrayIndex(item2) would give me 1;
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Jan 29, 2012
I'm building a plugin and I'm using actionscript to save the selection of an object in an illustrator document and then reference it later.
var arrObj:Array=new Array();
arrObj.push(app.activeDocument.selection[0]);
If I select now the same object in the document and check if its in the array it returns a -1 for the index value.
var id:int=arrObj.indexOf(app.activeDocument.selection[0]);
trace (id); //-1
Why is the selection not considered the same object as in that of the array?
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Mar 29, 2012
I have my grid-array in my flash game that has a set sized index in it, and through some code it sometimes checks outside of the Array index. Is there a way I can check to see if a index slot is undefined/existent
Gives me a TypeError #1010
public function fnPopulate(X:int, Y:int, Grid:Array){
if (Grid[ X + 1 ][ Y + 1 ] != null || Grid[ X + 1 ][ Y + 1 ] != undefined ) {
[code]......
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