you can't reference the stage in the Mountain class until it is added to the
Display List. try this
package {
import flash.display.Sprite;
import flash.events.Event;
public class Mountain extends Sprite {
private var x0:Number;
private var y0:Number;
private var x1:Number;
private var y1:Number;
private var x2:Number;
private var y2:Number;
public function Mountain() {
this.addEventListener(Event.ADDED_TO_STAGE, onStageAdded);
}
public function init():void {
graphics.beginFill(0x256251);
graphics.moveTo(x0,y0);
graphics.curveTo(x1,y1,x2,y2);
graphics.lineTo(x2, stage.stageHeight);
graphics.lineTo(0, stage.stageHeight);
graphics.endFill();
}
public function onStageAdded(e:Event):void
{
x0:Number =0;
y0 =stage.stageHeight -150;
x1=stage.stageWidth/2;
y1:Number=100;
x2 =stage.stageWidth;
y2:Number =stage.stageHeight -150;
init();
}
}
On Mon, Mar 17, 2008 at 11:28 AM, Pedro Kostelec <[EMAIL PROTECTED]>
wrote:
> I added the () to it but still doesn't work:
>
> package {
> import flash.display.Sprite;
> import flash.events.Event;
> import flash.filters.*;
>
> public class RisingCroix extends Sprite {
> private var croix:Croix;
> private var croix2L:Croix2;
> private var croix2R:Croix2;
> private var sun:Sun;
> private var mountain:Mountain;
>
> private var vy:Number=5;
> private var glowFilter:GlowFilter;
> private var glowSun:GlowFilter;
> private var blurFilter:BlurFilter;
> private var blurFilter2:BlurFilter;
>
> public function RisingCroix() {
> init();
> }
> private function init():void {
> sun = new Sun();
> addChild(sun);
> sun.x = stage.stageWidth / 2;
> sun.y=stage.stageHeight;
>
> croix=new Croix();
> addChild(croix);
> croix.x=stage.stageWidth / 2;
> croix.y=stage.stageHeight;
>
> croix2L = new Croix2();
> addChild(croix2L);
> croix2L.x=stage.stageWidth /4;
> croix2L.y = stage.stageHeight;
>
> croix2R = new Croix2();
> addChild(croix2R);
> croix2R.x = stage.stageWidth /4 *3;
> croix2R.y = stage.stageHeight;
>
> mountain= new Mountain();
> addChild(mountain);
> mountain.x = stage.stageWidth/2;
> mountain.y = stage.stageHeight/2;
>
> glowFilter = new GlowFilter(0xFFFFCC, 0.6, 30, 30,
> 3, 1);
> blurFilter = new BlurFilter(3,3,1);
> blurFilter2 = new BlurFilter(13,13,3);
> glowSun = new GlowFilter(0xFF6600, 1, 50, 50, 2,
> 1, true);
>
> croix.filters = [blurFilter, glowFilter];
> croix2R.filters = croix2L.filters =[blurFilter2];
> sun.filters = [glowSun, blurFilter2];
>
> addEventListener(Event.ENTER_FRAME, onEnterFrame);
> }
> public function onEnterFrame(event:Event):void {
> //...
> }
>
> }
> }
> }
>
> Mountain class final:
>
> package {
> import flash.display.Sprite;
>
> public class Mountain extends Sprite {
> private var x0:Number =0;
> private var y0:Number =stage.stageHeight -150;
> private var x1:Number=stage.stageWidth/2;
> private var y1:Number=100;
> private var x2:Number =stage.stageWidth;
> private var y2:Number =stage.stageHeight -150;
>
> public function Mountain() {
> init();
> }
> public function init():void {
> graphics.beginFill(0x256251);
> graphics.moveTo(x0,y0);
> graphics.curveTo(x1,y1,x2,y2);
> graphics.lineTo(x2, stage.stageHeight);
> graphics.lineTo(0, stage.stageHeight);
> graphics.endFill();
> }
> }
> }
>
> On Mon, Mar 17, 2008 at 3:58 PM, jonathan howe <[EMAIL PROTECTED]>
> wrote:
> > Missing () after Mountain instantiation, first of all...
> >
> > var mountain:Mountain = new Mountain();
> >
> >
> >
> >
> >
> > On Mon, Mar 17, 2008 at 3:36 PM, Pedro Kostelec <[EMAIL PROTECTED]>
> wrote:
> >
> > > Hi
> > > (posted in flashnewbies but the list is not very active and i need
> to
> > > solve this problemas soon as possible)
> > > i have a problem while creating a as3 short animation:
> > >
> > > When i test the movie(all done with as3) i get this:
> > >
> > > TypeError: Error #1009: Cannot access a property or method of a null
> > > object reference.
> > > at Mountain/init2()
> > > at Mountain$iinit()
> > > at RisingCroix/::init()
> > > at RisingCroix$iinit()
> > >
> > >
> > > my code:
> > > package {
> > > import flash.display.Sprite;
> > > import flash.events.Event;
> > > import flash.filters.*;
> > >
> > > public class RisingCroix extends Sprite {
> > > private var croix:Croix;
> > > private var croix2L:Croix2;
> > > private var croix2R:Croix2;
> > >
> > > private var vy:Number=5;
> > > private var glowFilter:GlowFilter;
> > > private var blurFilter:BlurFilter;
> > > private var blurFilter2:BlurFilter;
> > >
> > > public function RisingCroix() {
> > > init();
> > > }
> > > private function init():void {
> > > croix=new Croix;
> > > addChild(croix);
> > > croix.x=stage.stageWidth / 2;
> > > croix.y=stage.stageHeight;
> > >
> > > croix2L = new Croix2;
> > > addChild(croix2L);
> > > croix2L.x=stage.stageWidth /4;
> > > croix2L.y = stage.stageHeight;
> > >
> > > croix2R = new Croix2;
> > > addChild(croix2R);
> > > croix2R.x = stage.stageWidth /4 *3;
> > > croix2R.y = stage.stageHeight;
> > >
> > > var mountain:Mountain = new Mountain //i guess
> > > it is here wher it stucks
> > > addChild(mountain);
> > > mountain.x = stage.stageWidth / 2;
> > > mountain.y = stage.stageHeight / 2;
> > >
> > > glowFilter = new GlowFilter(0xFFFF00, 0.6, 30,
> > > 30, 2, 1);
> > > blurFilter = new BlurFilter(6,6,1);
> > > blurFilter2 = new BlurFilter(13,13,3);
> > >
> > > addEventListener(Event.ENTER_FRAME,
> onEnterFrame);
> > > }
> > > public function onEnterFrame(event:Event):void {
> > > if (croix.y>stage.stageHeight/2) {
> > > croix.y -=vy;
> > > }
> > > if (croix2R.y>stage.stageHeight/2-10) {
> > > croix2R.y -= vy/3*2;
> > > croix2L.y -= vy/3*2;
> > > }
> > > croix.filters = [blurFilter, glowFilter];
> > > croix2R.filters = croix2L.filters=[blurFilter2];
> > >
> > > }
> > > }
> > > }
> > >
> > > and the Mountain CLass
> > >
> > > package {
> > > import flash.display.Sprite;
> > >
> > > public class Mountain extends Sprite {
> > > private var color1:uint=0x003300;
> > > private var color2:uint=0x001700;
> > >
> > > public function Mountain() {
> > > init2();
> > > }
> > > public function init2():void {
> > >
> > > graphics.beginFill(color1);
> > > graphics.drawRect(0,0,stage.stageWidth,
> > > stage.stageHeight/2);
> > > graphics.endFill();
> > > }
> > > }
> > > }
> > >
> > >
> > >
> > > --
> > > Pedro D.K.
> > > _______________________________________________
> > > Flashcoders mailing list
> > > Flashcoders@chattyfig.figleaf.com
> > > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
> > >
> >
> >
> >
> > --
> > -jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
> > _______________________________________________
> > Flashcoders mailing list
> > Flashcoders@chattyfig.figleaf.com
> > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
> >
>
>
>
> --
> Pedro D.K.
> _______________________________________________
> Flashcoders mailing list
> Flashcoders@chattyfig.figleaf.com
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>
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