Issue with Flash AS3 Player movieclip and creating an instance - actionscript-3

Question

So heres my issue, I created a movieclip class within Adobe Animate (Warmage.as) and I added it to my stage (addChild(char)). I tried to access the properties says undefined property of char. But I created a class for Warmage and created an instance of it (char).
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.utils.Timer;
public class Main_class extends MovieClip
{
//player stats
var hsp:Number = 0;
var vsp:Number = 0;
var floor:Number = 1318;
var attackCounter = 5;
var doubleJumpCount = 0;
//Player states
var rightSide:Boolean = false;
var rDown:Boolean = false;
var lDown:Boolean = false;
var jumped:Boolean = false;
var onGround:Boolean = false;
var crouchMode:Boolean = false;
var attackMode:Boolean = false;
var canDoubleJump = false;
public function Main_class()
{
var char:Warmage = new Warmage();//Adds player to the level
char.x = 500;
char.y = 300;
addChild(char);
stage.addEventListener(Event.ENTER_FRAME, gameLoop);//Stage listens no matter what
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, keyReleased);
}
function gameLoop(e:Event):void
{
if(rDown)
{
char.x += 10;
}
if(lDown)
{
char.x -= 10;
}
}
function keyPressed(e:KeyboardEvent):void
{
if(e.keyCode == Keyboard.RIGHT)
{
rDown = true;
}
if(e.keyCode == Keyboard.LEFT)
{
lDown = true;
}
if(e.keyCode == Keyboard.UP && onGround)
{
jumped = true;
//doubleJumpCount += 1;
}
if(e.keyCode == Keyboard.DOWN && onGround)
{
crouchMode = true;
}
if(e.keyCode == Keyboard.SPACE && onGround)
{
attackMode = false;
}
}
function keyReleased(e:KeyboardEvent):void
{
if(e.keyCode == Keyboard.RIGHT)
{
rDown = false;
}
if(e.keyCode == Keyboard.LEFT)
{
lDown = false;
}
if(e.keyCode == Keyboard.UP)
{
jumped = true;
}
if(e.keyCode == Keyboard.DOWN)
{
crouchMode = false;
}
if(e.keyCode == Keyboard.SPACE)
{
attackMode = true;
}
}
}
}

Answer 1

Because you're using a local variable.
public function Main_class()
{
var char:Warmage = new Warmage();//Adds player to the level
trace(char); // OK. You can available char inside of this function.
}
function gameLoop(e:Event):void
{
trace(char); // You can not available that variable here.
}
Use global variable. Declare a variable outside a function.
private var char:Warmage;
public function Main_class()
{
char = new Warmage();//Adds player to the level
char.x = 500;
char.y = 300;
addChild(char);
trace(char); // OK
}
function gameLoop(e:Event):void
{
trace(char); // OK
}
Please read "Understanding variable scope"
http://help.adobe.com/en_US/ActionScript/3.0_ProgrammingAS3/WS5b3ccc516d4fbf351e63e3d118a9b90204-7f9d.html