Detecting And Removing Number From String
I am trying to figure out a way to detect and remove a number from a string. The value of the string is entered from a input text field. I need to detect leading zeros and remove them from the string. I understand the logic but familiar enough with the AS syntax yet.
//Found this to detect the first digit in the string
check = myString .charAt( 0 )
Need help forming the if statement to detect if leading digit is '0' and if = 0 remove it from string.
Thanks for any help you might be able to provide....
ActionScript.org Forums > ActionScript Forums Group > ActionScript 1.0 (and below)
Posted on: 12-15-2002, 12:48 PM
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Help Can't Convert String To Number With Number()
I'm pulling variables from an XML file and need to convert the strings from the XML to numbers. So, I have the following actionscript:
Code:
thisPC_Price = aPrice[0].stringValue();
trace(thisPC_Price);
trace(Number(thisPC_Price));
The first trace returns 100, which is the contents of the string (it's also treated like a string by the AS and if I try and do anything to it it will return NaN, as it should). The 2nd trace action returns NaN ..... and I have no idea why.
Anyone have any ideas?
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ActionScript Code:
var leftDown:Boolean = false;
var rightDown:Boolean = false;
var speed:int = 5;
var startTime:int = 0;
var timeLimit:int = 40;
var dropSpeed:int = 8;
//usagi's speed
var walkSpeed:Number = 7;
//usagi's jumping
var isJumping:Boolean = false;
//how quickly should the jump start off
var jumpSpeedLimit:int = 40;
//the current speed of the jump;
var jumpSpeed:Number = 0;
//Define variables for the key presses
var up:Boolean = false
var down:Boolean = false;
var right:Boolean = false;
var left:Boolean = false;
//a variable to display the user's score
var score:Number;
//a variable to maximum up to the number of stars needed to be caught to win
var winScore:Number = 15;
//a variable to display the number of lives the usagi has
var playerLives:Number;
//this listener will listen for down keystrokes
stage.addEventListener(KeyboardEvent.KEY_DOWN, checkKeysDown);
function checkKeysDown(e:KeyboardEvent)
{
//making the booleans true based on the keycode
//arrow keys
if(e.keyCode == 38 || e.keyCode == 87)
{
up = true;
}
if(e.keyCode == 40 || e.keyCode == 83)
{
down = true;
}
if(e.keyCode == 39 || e.keyCode == 68)
{
right = true;
}
if(e.keyCode == 37 || e.keyCode == 83)
{
left = true;
}
}
//this listener will listen for keys being released
stage.addEventListener(KeyboardEvent.KEY_UP, checkKeysUp);
function checkKeysUp(e:KeyboardEvent)
{
//making the booleans false based on the keycode
if(e.keyCode == 38 || e.keyCode == 87)
{
up = false;
}
if(e.keyCode == 38 || e.keyCode == 83)
{
down = false;
}
if(e.keyCode == 39 || e.keyCode == 68)
{
right = false;
}
if(e.keyCode == 37 || e.keyCode == 83)
{
left = false;
}
}
//add an event listener to usagi movie clip to make it move based on keypresses
mc_usagi.addEventListener(Event.ENTER_FRAME, moveUsagi);
//event handler tht moves Usagi on the Stage
function moveUsagi(e:Event)
{
//if certain keys are down then move Usagi
if(left && e.target.x > 280)
{
//change usagi's horizontal position to move left
e.target.x -= walkSpeed;
e.target.scaleX = 1;
}
if(right && e.target.x < 420)
{
//change usagi's horizontal position to move right
e.target.x += walkSpeed;
e.target.scaleX = -1;
}
if(up || isJumping)
{
//call a function to create the jump animation
usagiJump();
}
}
//jumping function
function usagiJump()
{
//if usagi isn't already jumping
if(!isJumping)
{
//then start jumping
isJumping = true;
//set the value of jump speed to negatie value of jumpSpeedLimit
jumpSpeed = - jumpSpeedLimit;
//move usagi's vertical position up
mc_usagi.y += jumpSpeed;
}
else
{
//then continue jumping if already in the air
if(jumpSpeed < 0)
{
//as the usagi moves up in the jump,
//slowly diminish the value of jumpSpeed to ease out of the jump
jumpSpeed *= 1 - jumpSpeedLimit/250;
//when usagi reaches the top of his jump
if(jumpSpeed > -jumpSpeedLimit/30)
{
//multiply the jumpSpeed value by -1 to start bringing usagi backdown
//jumpSpeed was initially set to a negative number
//this will change its value back to positive to move the usagi down
jumpSpeed *= -11;
}
}
//create an ease in motion as usagi moves back down
if(jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit)
{
jumpSpeed *= 2 + jumpSpeedLimit/70;
}
//change the vertical position of the usagi
mc_usagi.y += jumpSpeed;
//if character hits the moon, then stop jumping
if(mc_usagi.y >= stage.stageHeight - mc_usagi.height)
{
isJumping = false;
mc_usagi.y = stage.stageHeight - mc_usagi.height;
}
}
}
//this listener will listen for runGame
stage.addEventListener(Event.ENTER_FRAME, runGame);
function runGame(e:Event)
{
createStars();
createRocks();
score = 0;
checkScore();
playerLives = 5;
showLives();
}
function createStars()
{
if(startTime < timeLimit)
{
startTime++;
}
else
{
//defining a variable which will hold the new star
var newStar:Star = new Star();
//horizontally position the rock offstage when it is created
newStar.y = Math.random() *stage.stageHeight/2;
newStar.x = 0 - newStar.width
newStar.addEventListener(Event.ENTER_FRAME, movingStar);
//then add the star to stage
addChild(newStar);
//and reset the startTime to create a delay in creating the next star
startTime = 0;
}
}
function movingStar(e:Event)
{
//check to see if the star goes off stage / if so, remove it
if(e.target.x > stage.stageWidth)
{
e.target.removeEventListener(Event.ENTER_FRAME, movingStar);
removeChild(MovieClip(e.target));
}
//check to see if bunny net hits a star
if(e.target.hitTestObject(mc_usagi.mc_hotspotstar))
{
e.target.removeEventListener(Event.ENTER_FRAME, movingStar);
removeChild(MovieClip(e.target));
//increment the user's score
score++;
//check to see if the user win
checkScore();
}
//move the star horizontal
e.target.x += speed;
}
//create a function to check the score every time a star is caught
function checkScore()
{
displayScore.text = String(score);
}
function createRocks()
{
if(startTime < timeLimit)
{
startTime++;
}
else
{
//defining a variable which will hold the new rock
var newRock:Rock = new Rock();
//horizontally position the rock offstage when it is created
newRock.y = Math.random() *stage.stageHeight/2;
newRock.x = 0 - newRock.width
newRock.addEventListener(Event.ENTER_FRAME, movingRock);
//then add the rock to stage
addChild(newRock);
//and reset the startTime to create a delay in creating the next rock
startTime = 0;
}
}
function movingRock(e:Event)
{
//check to see if the rock goes off stage / if so, remove it
if(e.target.x > stage.stageWidth)
{
e.target.removeEventListener(Event.ENTER_FRAME, movingRock);
removeChild(MovieClip(e.target));
}
//check to see if bunny net hits a rock
if(e.target.hitTestObject(mc_usagi.mc_hotspotrock))
{
e.target.removeEventListener(Event.ENTER_FRAME, movingRock);
e.target.gotoAndPlay("explode");
//increment the user's score
score++;
//check to see if the user win
showLives();
}
//move the rock horizontal
e.target.x += speed;
}
function showLives()
{
displayLife.text = String(playerLives);
}
Please let me know what did I miss anything in AS3 for this parts?
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