I want to find specific value on a XMLListCollection.
I try to use something like this but it doesn't work!
var xmllisteRDV:XMLList= XML(event.result).RDVClinik;
xmlCollSuivi = new XMLListCollection(xmllisteRDV);
var index:Number = -1;
for(var i:Number = 0; i < xmllisteRDV.length(); i++)
{
if(XML(xmllisteRDV[i]).#grDateDeb == todayDate)
{
index = i;
break;
}
}
First going to try pointing out errors in the original code:
var xmllisteRDV:XMLList= XML(event.result).RDVClinik; //Unnecessary cast, event.result is Object compiler will not check or know the run-time type, doesn't care because Object is declared dynamic meaning properties can be added to it dynamically, if RDVClinik didn't exist on the particular Object type it would simply be null casting as XML gives it no information about this "property"
xmlCollSuivi = new XMLListCollection(xmllisteRDV);
var index:Number = -1;
for(var i:Number = 0; i < xmllisteRDV.length(); i++) //length is a property not a method on XMLListCollection this should throw a compile time error
{
if(XML(xmllisteRDV[i]).#grDateDeb == todayDate)// I see no type when debugging for the result of xmllisteRDV[i] not positive here but this cast is at the least unnecessary
{
index = i;
break;
}
}
Here's a version I think will work possibly with changes to how todayDate is built
var date:Date = new Date();
var todayDate:String = date.dateUTC+"/"+date.dayUTC+"/"+date.fullYear;
var index:int=-1;
for(var i:int = 0; i < flex3Projects.length; i++)
{
trace(xmllisteRDV[i].#grDateDeb)
if(xmllisteRDV[i].#grDateDeb.toString() == todayDate)
{
index = i;
break;
}
}
With you help, I found the solution
private function setSelectedItem():void
{
var gData:Object = dgSuiviClini.dataProvider;
var todayDate:String= new DateUtility().DateAsToString(new Date());
for(var i:Number=0; i < gData.length; i++)
{
var thisObj:Object = gData.getItemAt(i);
if(thisObj.grDateDeb == todayDate)
{
dgSuiviClini.selectedIndex = i;
//sometimes scrollToIndex doesnt work if validateNow() not done
dgSuiviClini.validateNow();
//dgSuiviClini.scrollToIndex(i);
}
else{
dgSuiviClini.validateNow();
// dgSuiviClini.scrollToIndex(gData.length);
}
}
dgSuiviClini.validateNow();
dgSuiviClini.editedItemPosition = { rowIndex: gData.length-1, columnIndex: nColSaisie };
}
Thanks
Related
I need to acess a variable inside this function using concatenation, following this example:
public function movePlates():void
{
var plate1:Plate;
var plate2:Plate;
var cont:uint = 0;
for (var i:uint = 0; i < LAYER_PLATES.numChildren; i++)
{
var tempPlate:Plate = LAYER_PLATES.getChildAt(i) as Plate;
if (tempPlate.selected)
{
cont ++;
this["plate" + cont] = LAYER_PLATES.getChildAt(i) as Plate;
}
}
}
EDIT:
public function testFunction():void
{
var test1:Sprite = new Sprite();
var test2:Sprite = new Sprite();
var tempNumber:Number;
this.addChild(test1);
test1.x = 100;
this.addChild(test2);
test2.x = 200;
for (var i:uint = 1; i <= 2; i++)
{
tempNumber += this["test" + i].x;
}
trace("tempNumber: " + tempNumber);
}
If i run the code like this, the line this["test" + i] returns a variable of the class. I need the local variable, the variable of the function.
Your loop on first step access plate0 this will cause not found error, if plate0 is not explicitly defined as class member variable or if class is not defined as dynamic. Same thing will happen for plate3, plate4, plate5... in case LAYER_PLATES.numChildren is more than 3.
EDIT:
Thanks to #Smolniy he corrected my answer plate0 is never accessed because cont is incremented before first access. So as he mentioned problem should be on plate3
You don't get the local variable with [] notation. your case has many solutions. You can use dictionary, or getChildAt() function:
function testFunction():void
{
var dict = new Dictionary(true);
var test1:Sprite = new Sprite();
var test2:Sprite = new Sprite();
var tempNumber:Number = 0;
addChild(test1);
dict[test1] = test1.x = 100;
addChild(test2);
dict[test2] = test2.x = 200;
for (var s:* in dict)
{
tempNumber += s.x;
//or tempNumber += dict[s];
}
trace("tempNumber: " + tempNumber);
};
Initially the array holds the default values as 100. Once if the enemy looses its health then i want to set the default values from 100 to 0. When all the array elements gets a value of 0 then the message will trace as game win.
var enemyHealth:Array = new Array(100,100,100,100,0);
for (var i = 0; i< enemyHealth.length; i++)
{
if (enemyHealth[i] == 0)
{
trace ("game win");
}
}
Actually the issue is if any one of the array element holds a value of 0 then it trace a massage as game win.
So can any one help me in this regard.
You need to check all elements, not just one:
var allZero:Boolean = true;
var enemyHealth:Array = new Array(100,100,100,100,0);
for (var i = 0; i< enemyHealth.length; i++)
{
if (enemyHealth[i] != 0)
{
allZero = false;
break; // We know it's not a win, so we can stop the loop early
}
}
if (allZero) {
trace ("game win");
}
I would do something like this
var enemyHealth:Array = new Array(100,100,100,100,0);
var isDead:Boolean = true;
for (var i = 0; i< enemyHealth.length; i++)
{
if (enemyHealth[i] != 0)
{
isDead = false;
break;
}
}
if(isDead)
{
trace ("Game Win");
}
You can do what the other answerers have said or something like this which might help you more to get the exact amount of enemies dead.
var enemyHealth:Array = new Array(100,100,100,100,0);
var enemiesDead:int=0;
for (var i = 0; i< enemyHealth.length; i++)
{
if (enemyHealth[i] == 0)
{
enemiesDead++;
}
}
if(enemiesDead==enemyHealth.length)
{
trace("Game Over");
}
You can use the every method to check that every element of your array (or vector) meet a criterion.
const enemyHealth:Vector.<uint> = new <uint>[100,100,100,100,0];
const zeroHealth:Function = function(item:uint, index:int, vector:Vector.<uint>):Boolean {
return item === 0;
}
if (enemyHealth.every(zeroHealth)) {
trace("Game win")
}
I have changed the array to a Vector because they are more efficient, and you can specify the type of the elements, but it also works fine with array.
I have a code to randomize Skins
private var tiles:Array = [
{"item":"Skin1", "chance":70 },
{"item":"Skin2", "chance":5 },
{"item":"Skin3", "chance":10 },
{"item":"Skin4", "chance":10 },
{"item":"Skin5", "chance":5 }
];
public function pickRandomByChance(options:Array):Object{
var copy:Array=[];
for (var i:int = 0; i < options.length; i++) {
copy.push( { "item":options[i].item, "chance":options[i].chance } );
}
var range:Number = 0;
for (i = 0; i < copy.length; i++){
range += copy[i].chance;
if (i > 0)
copy[i].chance += copy[i - 1].chance;
}
var pick:Number = Math.floor(Math.random() * range);
for (i = 0; i < copy.length; i++){
if (pick <= copy[i].chance)
return copy[i];
}
return null;
}
My question is how can i assign these skins to one of my buttons using setStyle?
button1.setStyle("skinClass", pickRandomByChance(tiles).item);
i tried to use the above code but i got an error #1009: Cannot access a property or method of a null object reference.
I think that your function is returning null (when setting they style its essentially calling null.item). I didn't test this code by I'm pretty sure it will work. Maybe give it a try. In my opinion, it's a little simpler.
public function pickRandomByChance(options:Array):Object{
var weightedArray:Array = [];
var range:Number = 0;
for each(var tile:Object in options){
for(var x = 0; x < tile.chance; x++){
weightedArray.push(tile);
}
range += tile.chance;
}
return(weightedArray[Math.floor(Math.random() * range)].item);
}
EDIT: Now that I look at your skin array I think I found the error. Try the skin names without quotes:
var tiles:Array = [ {"item":Skin1, "chance":70 },
{"item":Skin2, "chance":5 },
{"item":Skin3, "chance":10 },
{"item":Skin4, "chance":10 },
{"item":Skin5, "chance":5 }
];
EDIT: See the revised return above and also apply the skin as shown below:
button1.setStyle("skinClass", pickRandomByChance(tiles));
For example I have 3 elements in an array:
public function randomTile():Number
{
var tiles:Array = new Array(fire,ice,water);
var index:Number=Math.floor(Math.random()*tiles.length);
return tiles[index];
}
How to set the chances of occurrence of fire(70%), ice(10%), and water(20%)?
This should work for any number of elements and you can specify any chance value.
var tiles:Array = [
{"item":"fire", "chance":70 },
{"item":"ice", "chance":10 },
{"item":"water","chance":20}
];
var picked:Object = pickRandomByChance(tiles);
trace(picked.item);
public function pickRandomByChance(options:Array):Object
{
var copy:Array = [];
var range:Number = 0;
for (var i:int = 0; i < options.length; i++)
{
copy.push( { "item":options[i].item, "chance":options[i].chance } );
range += copy[i].chance;
if (i > 0)
copy[i].chance += copy[i - 1].chance;
}
var pick:Number = Math.floor(Math.random() * range);
for (i = 0; i < copy.length; i++)
{
if (pick <= copy[i].chance)
return copy[i];
}
return null;
}
There quite a few ways you could do this, and it largely depends of the scope of your project. If you just have the three elements, using a switch statement would be easy:
var rand:Number = Math.random();
switch(true){
case rand >= .3:
//use fire
break;
case rand >= .1
//use water
break;
default:
//use ice
}
Someone else may have a better way though
I have the following object:
var users:Object= new Object();
users[0]["user_id"] = "1124";
users[0]["name"] = "ikke";
users[0]["age"] = "24";
users[0]["gender"] = "male";
users[1]["user_id"] = "1318";
users[1]["name"] = "test";
users[1]["age"] = "20";
users[1]["gender"] = "male";
var selectors:Object = new Object();
selectors["user_id"] = 1318;
selectors["gender"] = "male";
what i want is to use the selectors object in an if statement. In humans lanuguage it should be something like:
for (var index:String in users) {
If users[index]["gender"] == selectors[gender] && users[index]["user_id"] == "male" -> then trace "success".
}
The tricky part is that the selectors object is dynamic. Sometimes it can contain only 1 item , sometimes 3 items. Or it can also be null. In that case it should allways trace success. Anyone that can help me?
for(var i:int = 0; i < users.length; i++) {
var success:Boolean = true;
for(var key:String in selectors) {
if(users[i][key] != selectors[key]) {
success = false;
break;
}
}
if(success) {
trace('success for user ' + i);
}
}