Specify max loop of tweenlite in as3 - actionscript-3

public function tweenLetterReward(totalReward:int):void {
var prizeAr:Vector.<String> = new < String > ["str1", "str2", "str3", "str4",
"str5"];
for (var i:int = 0; i < totalReward; i++)
{
//rewardText.visible = true;
TweenLite.to(rewardText, (.5+i*1), { y:150, onComplete:function(_i:int):void {
rewardText.y = 300;
rewardText.text = prizeAr[_i];
tweenLetterReward(_i);
//rewardText.visible = false;
}, onCompleteParams:[i]});
}
}
In the code above, assume i call tweenLetterReward(3);
In onComplete function, I trace the _i value. Why it becomes descending or _i = 2,1,0. It should be 0,1,2. Please help. Thanks

Related

Assigning the name of the skins in the array into buttons

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));

setting the chances of occurrence of elements in an array

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

XMLListCollection find index value

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

as3 removeChild - I cannot target specific children

I'm still trying to get my head around AS3 and can't figure out how to target some specific Children in my project and remove them... I'm sure there's a simple solution to this on page 1 of a "Basic AS3" book somewhere but I can't work it out!
I'm trying to remove the red lines created in the addNewPoint function (or just give them an alpha of 0) as part of the fillDriveway function.
I can give you a link to the source files if you need.
Thanks so so much in advance!
Here's my terrible code:
import flash.display.*
pic.addEventListener(MouseEvent.CLICK,addNewPoint);
var n:Number = 0;
function addNewPoint(e:MouseEvent):void {
n++;
pointNo.text = String(n);
var nextPoint:MovieClip = new newPoint();
addChild(nextPoint);
nextPoint.name = "mc"+pointNo.text;
nextPoint.x = e.target.mouseX;
nextPoint.y = e.target.mouseY;
var joinPoints:MovieClip = new MovieClip();
this.addChild(joinPoints);
joinPoints.graphics.lineStyle(0.5,0xFF0000);
joinPoints.graphics.moveTo(this.getChildByName("mc1").x, this.getChildByName("mc1").y);
for(var i:int=2; i<=n; ++i){
joinPoints.graphics.lineTo(this.getChildByName("mc"+i).x, this.getChildByName("mc"+i).y);
}
}
pic.addEventListener(MouseEvent.CLICK, addNewPoint);
function fillDriveway(eventObject:MouseEvent) {
var joinPoints:MovieClip = new MovieClip();
this.addChild(joinPoints);
joinPoints.graphics.beginFill(0xFFFFFF, 0.7);
joinPoints.graphics.moveTo(this.getChildByName("mc1").x, this.getChildByName("mc1").y);
for(var m:int=2; m<=n; ++m){
joinPoints.graphics.lineTo(this.getChildByName("mc"+m).x, this.getChildByName("mc"+m).y);
}
joinPoints.name = "driveshape";
filledDrive.text = "filled";
}
function undoit(eventObject:MouseEvent) {
if(n > 0) {
if(filledDrive.text.indexOf("filled") != -1) {
this.removeChild(this.getChildAt(this.numChildren -1));
filledDrive.text = "";
}else{
this.removeChild(this.getChildAt(this.numChildren -1));
this.removeChild(this.getChildAt(this.numChildren -1));
n--;
pointNo.text = String(n);
}
}
}
undo.addEventListener(MouseEvent.CLICK, undoit);
function maskDrive(eventObject:MouseEvent) {
if(filledDrive.text.indexOf("filled") != -1) {
var finishA:MovieClip = new finishMC();
this.addChild(finishA);
finishA.x = 310;
finishA.y = 100;
finishA.mask = getChildByName("driveshape");
finishA.gotoAndPlay(2);
}
}
//BTN Actions
function btn1over(myEvent:MouseEvent) {
btn1.gotoAndPlay(2);
}
function btn1out(myEvent:MouseEvent) {
btn1.gotoAndPlay(11);
}
function btn2over(myEvent:MouseEvent) {
btn2.gotoAndPlay(2);
}
function btn2out(myEvent:MouseEvent) {
btn2.gotoAndPlay(11);
}
function btn3over(myEvent:MouseEvent) {
btn3.gotoAndPlay(2);
}
function btn3out(myEvent:MouseEvent) {
btn3.gotoAndPlay(11);
}
//BTN Calls
btn1.addEventListener(MouseEvent.CLICK, fillDriveway);
btn1.addEventListener(MouseEvent.ROLL_OVER, btn1over);
btn1.addEventListener(MouseEvent.ROLL_OUT, btn1out);
btn1.buttonMode = true;
btn1.useHandCursor = true;
btn2.addEventListener(MouseEvent.CLICK, maskDrive);
btn2.addEventListener(MouseEvent.ROLL_OVER, btn2over);
btn2.addEventListener(MouseEvent.ROLL_OUT, btn2out);
btn2.buttonMode = true;
btn2.useHandCursor = true;
btn3.buttonMode = true;
btn3.useHandCursor = true;
btn3.addEventListener(MouseEvent.ROLL_OVER, btn3over);
btn3.addEventListener(MouseEvent.ROLL_OUT, btn3out);
I think your issue is that each time you create a new joinPoints you are overwriting the pointer to the previous joinPoints instance, therefore you cannot access it. (this will create a memory leak).
Each time you create a joinPoints object, add it to an array:
joinPointsArray.push(joinPoints);
Your fillDriveway function can then access all the joinPoints you have created:
for (var i:int = 0; i < joinPointsArray.length, i++) {
joinPointsArray[i].alpha = 0;
}

Why does my Actionscript 3 program randomly get stuck in an infinite loop?

mBlocks is a 2-dimensional array of Block objects. Every time my application runs, it runs the InitGridNumbers function. Sometimes, it will get stuck in an infinite loop. Other times, it builds and runs without issues.
public function InitGridNumbers():void
{
var tempRow:Array;
var tempColumn:Array;
var tempNum:int;
for (var i:int = 0; i < mNumRows; i++)
{
tempRow = GetRow(i);
for (var j:int = 0; j < mNumColumns; j++)
{
// if number is unassigned
if (tempRow[j] == 0)
{
var cantMoveOn:Boolean = true;
while (cantMoveOn)
{
tempNum = Math.random() * mNumColumns + 1;
if (!CheckRow(i, tempNum) && !CheckColumn(j, tempNum))
cantMoveOn = false;
}
mBlocks[i][j].SetNumber(tempNum);
}
}
}
}
public function CheckRow(rowNum:int, checkNum:int):Boolean
{
var tempRow:Array = GetRow(rowNum);
for (var i:int = 0; i < mNumColumns; i++)
{
if (checkNum == tempRow[i])
return true;
}
return false;
}
public function CheckColumn(columnNum:int, checkNum:int):Boolean
{
var tempColumn:Array = GetColumn(columnNum);
for (var i:int = 0; i < mNumColumns; i++)
{
if (checkNum == tempColumn[i])
return true;
}
return false;
}
public function GetRow(rowNum:int):Array
{
var rowArray:Array = new Array(mNumRows);
for (var i:int = 0; i < mNumRows; i++)
rowArray[i] = mBlocks[rowNum][i].mNumber;
return rowArray;
}
public function GetColumn(columnNum:int):Array
{
var columnArray:Array = new Array(mNumColumns);
for (var i:int = 0; i < mNumColumns; i++)
columnArray[i] = mBlocks[i][columnNum].mNumber;
return columnArray;
}
To begin with, checkColumn, getColumn and getRow methods are wrong. To get a row, you should copy numColumns items and to get a column, you should copy numRows items. In other words, if there are r rows and c columns, there would be c items per each row and r items per each column.
public function checkColumn(columnNum:int, checkNum:int):Boolean
{
var tempColumn:Array = getColumn(columnNum);
for (var i:int = 0; i < mNumRows; i++)
{
if (checkNum == tempColumn[i])
return true;
}
return false;
}
public function getRow(rowNum:int):Array
{
var rowArray:Array = new Array();//needn't specify length in advance.
for (var i:int = 0; i < mNumColumns; i++)
rowArray[i] = mBlocks[rowNum][i].mNumber;
return rowArray;
}
public function getColumn(columnNum:int):Array
{
var columnArray:Array = new Array();
for (var i:int = 0; i < mNumRows; i++)
columnArray[i] = mBlocks[i][columnNum].mNumber;
return columnArray;
}
while (cantMoveOn)
{
//call Math.floor
tempNum = Math.floor(Math.random() * mNumColumns) + 1;
if (!checkRow(i, tempNum) && !checkColumn(j, tempNum))
cantMoveOn = false;
}
It looks like you're checking for a number that is not present in the current row and column. It's hard to say without knowing more details, but can you think of a scenario where this would be impossible?
For example, if there are four columns and five rows, the tempNum would always be between one and four. Now if the number of rows is five and the corresponding column already has all numbers up to four, the if statement would never evaluate to true and hence you'd end up in an infinite loop
0 1 2 3
1
2
3
4
in case grid is a square, how about this:
0 1 2 3
4
0
0