Problemer med å finne feil i AS3

[naish]

Hei, driver på med eit skuleprosjekt og sliter med ein feilkode vi ikkje skjønner ka er. Vi har ein animasjon som er knytta opp til ein package og feilmeldinga er i packagen.

 

Sjølve koden:

stop();
var mainSpeed:int = 7;
var CHICKYTime:int = 0;
var CHICKYLimit:int = 16;
var score:int = 0;
var gameOver:Boolean = false;

//-------Stjernar i bakgrunnen-----------------------------------------------//

stage.addEventListener(Event.ENTER_FRAME, generateParticles);

if(particleContainer == null){
var particleContainer:MovieClip = new MovieClip();
addChild(particleContainer);
}

function generateParticles(event:Event):void{
if(Math.random()*10 < 2){
	var mcParticle:Shape = new Shape(); 
	var dimensions:int = int(Math.random()*2)+1;
	mcParticle.graphics.beginFill(0xffffff,1);
	mcParticle.graphics.drawRect(dimensions,dimensions,dimensions,dimensions);
	mcParticle.x = int(Math.random()*stage.stageWidth);
	mcParticle.y = int(Math.random()*stage.stageHeight);
	particleContainer.addChild(mcParticle);
}

for(var i:int=0;i<particleContainer.numChildren;i++){
	var theParticle:DisplayObject = particleContainer.getChildAt(i);
	theParticle.y += mainSpeed*.5;
	if(theParticle.y >= 800){
		particleContainer.removeChild(theParticle);
	}
}
}

//-------------------------Styre raketten-------------------------------------//
//These variables tell us which button is down
var leftArrow:Boolean = false;
var rightArrow:Boolean = false;
var upArrow:Boolean = false;

//rotationSpeed defines how fast the ROCKY rotates
var rotationSpeed:Number = 15;

//accelaration defines how fast we accelerate the ship
var acceleration:Number = 0.25;

//Ship x and y speed
var xSpeed:Number = 0;
var ySpeed:Number = 0;

//Add ENTER_FRAME that moves the ship
addEventListener (Event.ENTER_FRAME,moveRocket);

//Listen for the key presses
stage.addEventListener (KeyboardEvent.KEY_DOWN,keyDownHandler);
stage.addEventListener (KeyboardEvent.KEY_UP,keyUpHandler);

function moveRocket (e:Event):void {

//First we rotate the ship
if(rightArrow) {
	ROCKY.rotation += rotationSpeed;
}
if(leftArrow) {
	ROCKY.rotation -= rotationSpeed;
}


//If the user presses the up arrow, the following gets executed
if(upArrow) {

	//Increase the x and y speeds
	xSpeed += Math.cos(Math.PI*ROCKY.rotation/180)*acceleration;
	ySpeed += Math.sin(Math.PI*ROCKY.rotation/180)*acceleration;

	//Create a fire when we acce
	var fire:MovieClip = new MovieClip();

	//Draw the fire
	drawFire(fire);

	//Create a new fire at the end of the ROCKY
	fire.x = ROCKY.x - Math.cos(Math.PI*ROCKY.rotation/180)
			* (ROCKY.width / 2);
	fire.y = ROCKY.y - Math.sin(Math.PI*ROCKY.rotation/180)
			* (ROCKY.height / 2);

	//Add the fire to the stage
	addChildAt(fire,0);

	fire.addEventListener(Event.ENTER_FRAME, animateFire);
}

//Assign the new x and y position for the ROCKY
ROCKY.x +=  xSpeed;
ROCKY.y +=  ySpeed;
var maxspeedG:Number = 9;
var maxspeed:Number = 6;

//Make the ROCKY appear on the other side if it's out of bounds
if (ROCKY.x > stage.stageWidth) {
	ROCKY.x = 0;
}
else if (ROCKY.x < 0) {
	ROCKY.x = stage.stageWidth;
}
if (ROCKY.y > stage.stageHeight) {
	ROCKY.y = 0;
}
if (ROCKY.y < 0) {
	ROCKY.y = stage.stageHeight;
}

}

//This is called when a user presses a key
function keyDownHandler (e:KeyboardEvent):void {

//Left arrow clicked
if (e.keyCode == 37) {
	leftArrow = true;
}

//Right arrow clicked
else if (e.keyCode == 39) {
	rightArrow = true;
}

//Up arrow clicked
else if (e.keyCode == 38) {
	upArrow = true;
}
}

//This is called when a user releases a key
function keyUpHandler (e:KeyboardEvent):void {

//Left arrow up
if (e.keyCode == 37) {
	leftArrow = false;
}

//Right arrow up
else if (e.keyCode == 39) {
	rightArrow = false;
}

//Up arrow up
else if (e.keyCode == 38) {
	upArrow = false;
}
}

//This funtion draws a red ball
function drawFire (mc:MovieClip):void {

//Give a random color for the circle
mc.graphics.beginFill (0xff0000);

//Draw the cirlce
mc.graphics.drawCircle (0, 0, 7);

//End the filling
mc.graphics.endFill ();
}

//This function fades the fire in each frame
function animateFire(e:Event):void {

//In each frame, reduce the alpha and the scale of the trail ball.
e.target.alpha -= 0.04;
e.target.scaleY -= 0.04;
e.target.scaleX -= 0.04;

//Remove the fire if the alpha is less than zero
if(e.target.alpha<0) {
	e.target.removeEventListener(Event.ENTER_FRAME, animateFire);
	removeChild((MovieClip)(e.target));
}
}
//-------------------------Ny fiende--------------------------------------------//

ROCKY.addEventListener(Event.ENTER_FRAME,newChicken);
function newChicken(event:Event):void{
if(CHICKYTime < CHICKYLimit){
	CHICKYTime ++;
} else {
	var newChicken = new CHICKY();
	newChicken.y = -1 * newChicken.height;
	newChicken.x = int(Math.random()*(stage.stageWidth - newChicken.width));
	addChild(newChicken);
	CHICKYTime = 0;
}
txtScore.text = ''+score;
}

 

og her er packagen:

 

package{
import flash.display.MovieClip;
import flash.events.*;
public class CHICKY extends MovieClip{
	private var _root:Object;
	private var speed:int = 5;
	public function CHICKY(){
		addEventListener(Event.ADDED, beginClass);
		addEventListener(Event.ENTER_FRAME, eFrame);
	}
	private function beginClass(event:Event):void{
		_root = MovieClip(root);
	}
	private function eFrame(event:Event):void{
		y += speed;
		if(this.y > stage.stageHeight){
			removeEventListener(Event.ENTER_FRAME, eFrame);
			_root.removeChild(this);
		}
		if(CHICKY.hitTestObject(_root.ROCKY)){
			_root.gameOver = true;
			_root.gotoAndStop(5);

		}

		if(_root.gameOver){
			removeEventListener(Event.ENTER_FRAME, eFrame);
			this.parent.removeChild(this);

		}
	}
	public function removeListeners():void{
		this.removeEventListener(Event.ENTER_FRAME, eFrame);
	}
}
}

 

og så feilmeldinga vi får:

 

TypeError: Error #2007: Parameter hitTestObject must be non-null.

at flash.display::DisplayObject/flash.display:DisplayObject::_hitTest()

at flash.display::DisplayObject/hitTestObject()

at CHICKY/::eFrame()

TypeError: Error #1009: Cannot access a property or method of a null object reference.

at PeterVSEvilChicken_fla::MainTimeline/PeterVSEvilChicken_fla::frame5()

TypeError: Error #1009: Cannot access a property or method of a null object reference.

at PeterVSEvilChicken_fla::MainTimeline/moveRocket()

 

Problemer er egentlig at vi ikkje skjønner ka som er feil, berre at det er noke med hitTestObjecten i packagen. Noken som kan hjelpe?

 

På forhånd takk

[Senzation]

Det er bare feil med refereringa/navigasjonen.

 

Kan ikke hjelpe deg noe mer enn det