How to scroll or move a map

Question

I want to figure out how to move a map if I got objexts placed all around in a huge area and got one guy moving would I need to use scroll and if so how do I use it on this code?
package {
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.events.Event;
    import flash.events.KeyboardEvent;
    import flash.ui.Keyboard;
    public class platform extends Sprite {
        protected var hero:Hero;
        protected var char:Char;
        protected var keys:Array;
        protected const MAX_KEY:int = 128;
        public function platform() {
            hero = new Hero();
            addChild(hero);
            hero.x = 0;
            hero.y = 0;
            var a:NestedCircles = new NestedCircles(true, 0xff0000);
            var b:NestedCircles = new NestedCircles(true, 0x0f0ff0);
            var c:NestedCircles = new NestedCircles(false, 0x000ff0);
            a.x = 100;
            b.x = 200;
            c.x = 300;
            a.y = b.y = c.y = 200;
            addChild(a); addChild(b); addChild(c);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, onKey);
            stage.addEventListener(KeyboardEvent.KEY_UP, onKey);
            keys = new Array(MAX_KEY);
            char = new Char();
            addChild(char);
            char.x = stage.stageWidth/2;
            char.y = stage.stageHeight/2;
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
            if(char.x >= stage.stageWidth){
            scroll()
        protected function onKey(event:KeyboardEvent):void {
            if (event.keyCode >= MAX_KEY) return;
            keys[event.keyCode] = (event.type == KeyboardEvent.KEY_DOWN);
        protected function onEnterFrame(event:Event):void {
            if (keys[Keyboard.UP]) char.y -= char.height;
            if (keys[Keyboard.DOWN]) char.y += char.height;
            if (keys[Keyboard.LEFT]) char.x -= char.width;
            if (keys[Keyboard.RIGHT]) char.x += char.width;
import flash.display.*;
import flash.events.MouseEvent;
class NestedCircles extends Sprite {
    public var child:NestedCircles;
    protected var stroke:Shape;
    public function NestedCircles(useRoll:Boolean, color:uint = 0,
                                  size:Number = 60, isChild:Boolean = false) {
        graphics.beginFill(color, 0.25);
        graphics.drawCircle(0, 0, size);
        graphics.endFill();
        stroke = new Shape();
        addChild(stroke);
        stroke.graphics.lineStyle(5, 0xffff00);
        stroke.graphics.drawCircle(0, 0, size);
        stroke.visible = false;
        if (useRoll) {
            addEventListener(MouseEvent.ROLL_OVER, handler);
            addEventListener(MouseEvent.ROLL_OUT, handler);
        } else {
            addEventListener(MouseEvent.MOUSE_OVER, handler);
            addEventListener(MouseEvent.MOUSE_OUT, handler);   
        if (!isChild) {
            child = new NestedCircles(useRoll, color, size/2, true);
            addChild(child);
            child.y = -size;
    protected function handler(event:MouseEvent):void {
        trace(event.target.name, event.type);
        switch (event.type) {
            case MouseEvent.MOUSE_OUT:
            case MouseEvent.ROLL_OUT:
                stroke.visible = false;
                event.stopPropagation();
                break;
            case MouseEvent.MOUSE_OVER:
            case MouseEvent.ROLL_OVER:
                stroke.visible = true;
                event.stopPropagation();
                break;
import flash.display.Shape;
class Hero extends Shape {
    public function Hero() {
        graphics.beginFill(0x10c010);
        graphics.drawRect(0, 0, 500, 500);
        graphics.endFill();
import flash.display.Shape;
class Char extends Shape {
    public function Char() {
        graphics.beginFill(0x000000);
        graphics.drawRect(0, 0, 12, 30);
        graphics.endFill();

Answer 1

Scrolling normally just involves incrementally adjusting the x or y property of an object via some control.  I doubt anyone is going to try to decipher your code to see where anything in the way of scrolling might fit in.