Help with game.

[FullMetalEdward]

Hello I've been trying to make a falling and catching game in AS3 I've managed to make the character move and make the objects fall but I cant get them to do a hittest properly. all I want it to do is when my character hits the object the score text will increase and the ring dissapear.
I have attached all the files im using I hope someone can help.

Thank you.

[Pazil]

Post some code please...I don't think a lot of us like downloading zips...

[FullMetalEdward]

Sorry thats understandable ok here is the code:

This bit is on the first frame of the layer 1.

var leftKeyDown:Boolean = false;
var upKeyDown:Boolean = false;
var rightKeyDown:Boolean = false;
var downKeyDown:Boolean = false;
var mainSpeed:Number = 15;
 
shadow_mc.step=5;
shadow_mc.keydown = false; 
shadow_mc.stance= 1; 
shadow_mc.crouch=false;

var left:Boolean = false;
var right:Boolean = false;
var walking:Boolean =false; 


var ringTime:int = 0;
var ringLimit:int = 16;

 
shadow_mc.addEventListener(Event.ENTER_FRAME, moveChar);
function moveChar(event:Event):void{
	

	if(leftKeyDown){
		shadow_mc.x -= mainSpeed;
			shadow_mc.scaleX = -1;
	if (shadow_mc.currentFrame != 2) {
            shadow_mc.gotoAndStop(2);
        } 
	}
	if(rightKeyDown){
		shadow_mc.x += mainSpeed;
			shadow_mc.scaleX = +1;
	{
	if (shadow_mc.currentFrame != 2) {
         shadow_mc.gotoAndStop(2);
        } 
	}
}
	if(upKeyDown || mainJumping){
		mainJump();
	}
			//adding enemies to stage
	if(ringTime < ringLimit){
		//if time hasn't reached the limit, then just increment
		ringTime ++;
	} else {
		//defining a variable which will hold the new enemy
		var newRing = new Ring();
		//making the enemy offstage when it is created
		newRing.y = -1 * newRing.height;
		//making the enemy's x coordinates random
		//the "int" function will act the same as Math.floor but a bit faster
		newRing.x = int(Math.random()*stage.stageWidth - newRing.width);
		//then add the enemy to stage
		addChild(newRing);
		//and reset the enemyTime
		ringTime = 0;
	}
}				




stage.addEventListener(KeyboardEvent.KEY_DOWN, checkKeysDown);
function checkKeysDown(event:KeyboardEvent):void{

	if(event.keyCode == 37 || event.keyCode == 65){
		leftKeyDown = true;
		
	}
	if(event.keyCode == 38 || event.keyCode == 87){
		upKeyDown = true;
		shadow_mc.gotoAndStop("jump");
	}
	if(event.keyCode == 39 || event.keyCode == 68){
		rightKeyDown = true;
		
	}
	if(event.keyCode == 40 || event.keyCode == 83){
		downKeyDown = true;
			shadow_mc.gotoAndStop("duck");
	}
		if(left || right)
	{
		if(walking ==false)
		{
			shadow_mc.gotoAndStop(2);
			walking = true;
		}
}
}

stage.addEventListener(KeyboardEvent.KEY_UP, checkKeysUp);
function checkKeysUp(event:KeyboardEvent):void{

	if(event.keyCode == 37 || event.keyCode == 65){
		leftKeyDown = false;
		shadow_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 38 || event.keyCode == 87){
		upKeyDown = false;
		shadow_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 39 || event.keyCode == 68){
		rightKeyDown = false;
		shadow_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 40 || event.keyCode == 83){
		downKeyDown = false;
		shadow_mc.gotoAndStop("stance");
	}
}

var mainJumping:Boolean = false;
var jumpSpeedLimit:int = 15;
var jumpSpeed:Number = jumpSpeedLimit;

function mainJump():void{
	if(!mainJumping){
		mainJumping = true;
		jumpSpeed = jumpSpeedLimit*-1;
		shadow_mc.y += jumpSpeed;
	} else {
		if(jumpSpeed < 0){
			jumpSpeed *= 1 - jumpSpeedLimit/75;
			if(jumpSpeed > -jumpSpeedLimit/5){
				jumpSpeed *= -1;
			}
		}
		if(jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit){
			jumpSpeed *= 1 + jumpSpeedLimit/50;
		}
		shadow_mc.y += jumpSpeed;
		shadow_mc.gotoAndStop("jump");

		if(shadow_mc.y >= stage.stageHeight - shadow_mc.height){
			mainJumping = false;
			shadow_mc.y = stage.stageHeight - shadow_mc.height;
			shadow_mc.gotoAndStop("stance");
		}
	}
}

This bit is in a .as file called hittesting

package {
	import flash.display.MovieClip;
	import flash.events.*;
	import flash.text.TextField;
	
	public class hittesting extends MovieClip {
		
		var scorenum:Number = 0;
		
		public function hittesting() {
			addEventListener(Event.ENTER_FRAME,enterFrameHandler);
		}
		public function enterFrameHandler(e:Event):void {
			if (shadow_mc.hitTestObject(ring)) {
				scorenum +=1;
				score.text = (scorenum.toString());
			}
		}//End enterFrame event
	}//End class
}//End package

And this bit is in a .as called Ring.

package{
	
	import flash.display.MovieClip;
	import flash.events.*;
	
	public class Ring extends MovieClip{

		private var _root:Object;
		private var speed:int = 5;
		
		public function Ring(){
			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);
			}
		}
	}
}

Hope this helps

[Pazil]

Alright...

Why do you need the hittesting class? It's much easier to have that if statement inside your main loop!
And anyways, I couldn't find one place where you instantiate the hittesting class. Simply do the hitTesting inside the moveChar function! Should work...

Also, all the variables you're trying to access in the hittesting class, are local to that class, so they're all undefined.
Plus you'll need to add all the new Rings you make to an array, and then cycle through it in the moveChar function, and hitTest each one.

P.

[tonypa]

Not sure why you use separate hittesting class, I would put the hittest in Ring class:

...
y += speed;
if(this.hitTestObject(shadow_mc)){
    scorenum +=1;
    score.text = (scorenum.toString());
    removeEventListener(Event.ENTER_FRAME, eFrame);
    _root.removeChild(this);
}
if(this.y > stage.stageHeight){
... 

[Pazil]

It should be:

if(this.hitTestObject(_root.shadow_mc)){

[FullMetalEdward]

Not sure why you use separate hittesting class, I would put the hittest in Ring class:

...
y += speed;
if(this.hitTestObject(shadow_mc)){
    scorenum +=1;
    score.text = (scorenum.toString());
    removeEventListener(Event.ENTER_FRAME, eFrame);
    _root.removeChild(this);
}
if(this.y > stage.stageHeight){
... 

My code is all over the place, this seems like it should work but how would I conbine the ring code and the hittesting code?
My hittesting is linked via document class so putting that bit of code in the ring class and tring to link the .fla document class to Ring.as doesnt seem to work as Ring.as is linked to ring MC.
Doing this in AS2 was easier in my opinion

[FullMetalEdward]

Not sure why you use separate hittesting class, I would put the hittest in Ring class:

...
y += speed;
if(this.hitTestObject(shadow_mc)){
    scorenum +=1;
    score.text = (scorenum.toString());
    removeEventListener(Event.ENTER_FRAME, eFrame);
    _root.removeChild(this);
}
if(this.y > stage.stageHeight){
... 

Ok I've managed to put the hittesting code in with the ring.as so the code looks like this:

package{
	
	import flash.display.MovieClip;
	import flash.events.*;
	
	public class Ring extends MovieClip{

		private var _root:Object;
		private var speed:int = 5;
		var scorenum:Number = 0;
		
		public function Ring(){
			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.hitTestObject(_root.shadow_mc)){
    scorenum +=1;
    _root.score.text = (scorenum.toString());
			if(this.y > stage.stageHeight){
				removeEventListener(Event.ENTER_FRAME, eFrame);
				_root.removeChild(this);
				
			}
		}
	}
}}

However no when my character hits the ring the score goes up but it also resets and goes up again each ring I hit, im sure I need a for loop but I was never good with them. any ideas as to what i should do?

[tonypa]

Sorry, I only make my games using 1 single class, the logic of your game is much too complicated for me.

[FullMetalEdward]

Ok I have finaly managed to put all my code into one .as file and all is called onto stage when i load the .swf...now for my next problem...How can I make a start screen for my game?, I simply want to make it so none of my code runs (essepcially the timer function and the character loading) until I click a start button. And I want to make the start screen on the first frame, currently my main stage is on it. So how can I add a button to the first frame that runs my code on click?

here is my code so far:

package {
	import flash.display.*;
	import flash.events.*;
	import flash.text.*;
	import flash.utils.Timer;
	import flash.utils.getDefinitionByName;

	//Creates a new character and places it on stage.
	public class EarlGame extends MovieClip {
		var earl_mc:Earl;
		var nextObject:Timer;
		var objects:Array = new Array();
		var score:int = 0;
		var ring:int = 0;
		const speed:Number = 7.0;
		
		public function EarlGame() {
			earl_mc = new Earl();
			earl_mc.y = 325;
			earl_mc.x = 250;
			addChild(earl_mc);
			setNextObject();
			addEventListener(Event.ENTER_FRAME, moveObjects);


//Sets the variables for the character's movements.
var leftKeyDown:Boolean = false;
var upKeyDown:Boolean = false;
var rightKeyDown:Boolean = false;
var downKeyDown:Boolean = false;
var mainSpeed:Number = 15;
 
earl_mc.keydown = false; 
earl_mc.stance= 1; 
earl_mc.crouch=false;

var left:Boolean = false;
var right:Boolean = false;
var walking:Boolean =false; 

 
earl_mc.addEventListener(Event.ENTER_FRAME, moveChar);
function moveChar(event:Event):void{
	

	if(leftKeyDown){
		earl_mc.x -= mainSpeed;
			earl_mc.scaleX = -1;
	if (earl_mc.currentFrame != 2) {
            earl_mc.gotoAndStop(2);
        } 
	}
	if(rightKeyDown){
		earl_mc.x += mainSpeed;
			earl_mc.scaleX = +1;
	{
	if (earl_mc.currentFrame != 2) {
         earl_mc.gotoAndStop(2);
        } 
	}
}
	if(upKeyDown || mainJumping){
		mainJump();
	}
}				


//Checks if keys are down
stage.addEventListener(KeyboardEvent.KEY_DOWN, checkKeysDown);
function checkKeysDown(event:KeyboardEvent):void{
	

	if(event.keyCode == 37 || event.keyCode == 65){
		leftKeyDown = true;
		
	}
	if(event.keyCode == 38 || event.keyCode == 87){
		upKeyDown = true;
		earl_mc.gotoAndStop("jump");
	}
	if(event.keyCode == 39 || event.keyCode == 68){
		rightKeyDown = true;
		
	}
	if(event.keyCode == 40 || event.keyCode == 83){
		downKeyDown = true;
			earl_mc.gotoAndStop("duck");
	}
		if(left || right)
	{
		if(walking ==false)
		{
			earl_mc.gotoAndStop(2);
			walking = true;
		}
	}
}

//Checks if keys are up and if so puts character in it's stance position.
stage.addEventListener(KeyboardEvent.KEY_UP, checkKeysUp);
function checkKeysUp(event:KeyboardEvent):void{

	if(event.keyCode == 37 || event.keyCode == 65){
		leftKeyDown = false;
		earl_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 38 || event.keyCode == 87){
		upKeyDown = false;
		earl_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 39 || event.keyCode == 68){
		rightKeyDown = false;
		earl_mc.gotoAndStop("stance");
	}
	if(event.keyCode == 40 || event.keyCode == 83){
		downKeyDown = false;
		earl_mc.gotoAndStop("stance");
	}
}

//Runs the jump code so when the up key is pressed the character jumps.
var mainJumping:Boolean = false;
var jumpSpeedLimit:int = 15;
var jumpSpeed:Number = jumpSpeedLimit;

function mainJump():void{
	if(!mainJumping){
		mainJumping = true;
		jumpSpeed = jumpSpeedLimit*-1;
		earl_mc.y += jumpSpeed;
	} else {
		if(jumpSpeed < 0){
			jumpSpeed *= 1 - jumpSpeedLimit/75;
			if(jumpSpeed > -jumpSpeedLimit/5){
				jumpSpeed *= -1;
			}
		}
		if(jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit){
			jumpSpeed *= 1 + jumpSpeedLimit/50;
		}
		earl_mc.y += jumpSpeed;
		earl_mc.gotoAndStop("jump");

		if(earl_mc.y >= 320){
			mainJumping = false;
			earl_mc.y = 325;
			earl_mc.gotoAndStop("stance");
	  		}
		}
	}
}
		
		
		//Function that triggers the objects falling, when they fall and if they hit the character they dissapear.
		public function setNextObject() {
			nextObject = new Timer(1000+Math.random()*1000,1);
			nextObject.addEventListener(TimerEvent.TIMER_COMPLETE,newObject);
			nextObject.start();
		}

		public function newObject(e:Event) {
			var rings:Array = ["Ring1","Ring2"];
			var bombs:Array = ["Creature1"];
			var emeralds:Array = ["Emerald1","Emerald2","Emerald3","Emerald4","Emerald5","Emerald6","Emerald7","Emerald8"];
			
			if (Math.random() < .5) {
				var r:int = Math.floor(Math.random()*rings.length);
				var classRef:Class = getDefinitionByName(rings[r]) as Class;
				var newObject:MovieClip = new classRef(); 
				newObject.typestr = "ring";
			} else if(Math.random() < .5){
				r = Math.floor(Math.random()*bombs.length);
				classRef = getDefinitionByName(bombs[r]) as Class;
				newObject = new classRef(); 
				newObject.typestr = "bombs";
			} else {
				r = Math.floor(Math.random()*emeralds.length);
				classRef = getDefinitionByName(emeralds[r]) as Class;
				newObject = new classRef(); 
				newObject.typestr = "emeralds";
				
			}

			newObject.x = Math.random()*500;
			addChild(newObject);
			objects.push(newObject);
			setNextObject();
		}
		
		public function moveObjects(e:Event) {
			for(var i:int=objects.length-1;i>=0;i--) {
				objects[i].y += speed;
				if (objects[i].y > 400) {
					removeChild(objects[i]);
					objects.splice(i,1);
				}
				if (objects[i].hitTestObject(earl_mc)) {
					if (objects[i].typestr == "ring") {
						score += 5;
						ring += 1;
					} else if (objects[i].typestr == "emeralds"){
						score += 10;
					} else {
						score -= 3;
					}
					if (score < 0) score = 0;
					scoreDisplay.text = ""+score;
					ringDisplay.text = ""+ring;
					removeChild(objects[i]);
					objects.splice(i,1);

if(score == 100){
trace("WIN!!!");
}

				}
			}
		}
	}
}

Hope someone can help

[FullMetalEdward]

Nevermind I did it

[trogdor458]

Does it seem like maybe this guy didn't need any help?

[FullMetalEdward]

it's strange how I seem to search for ages looking for how to do something then when I cant find it I ask on here then coincidently when I continue searching i find it....Seems to help :P
But Im still thankfull for those who replied

[FullMetalEdward]

Heya again im wondering if anyone knows how I can stop this code from running when my character's health gets to zero, I want it to go to the next frame without it wanting to keep loading new objects.

package {


	import flash.display.*;
	import flash.events.*;
	import flash.text.*;
	import flash.utils.Timer;
	import flash.utils.getDefinitionByName;
	import flash.media.Sound;

	//Creates a new character and places it on stage.
	public class MainGame extends MovieClip {
		var char_mc:Char;
		var gameOver:GameOver;
		var nextObject:Timer;
		var objects:Array = new Array();
		var coin:int = 0;
		var present:int = 0;
		const speed:Number = 7.0;

		public function MainGame() {
			startButtonChar.addEventListener( MouseEvent.CLICK, onClickStartChar );
		}
		public function onClickStartChar( event:MouseEvent ):void {
			gotoAndStop(2);
			char_mc = new Char();
			char_mc.y = 325;
			char_mc.x = 250;
			addChild(char_mc);

			addEventListener(Event.ENTER_FRAME, moveObjects);
			setNextObject();




			//Sets the variables for the character's movements.
			var leftKeyDown:Boolean = false;
			var upKeyDown:Boolean = false;
			var rightKeyDown:Boolean = false;
			var downKeyDown:Boolean = false;
			var mainSpeed:Number = 15;

			char_mc.keydown = false;
			char_mc.stance= 1;
			char_mc.crouch=false;

			var left:Boolean = false;
			var right:Boolean = false;
			var walking:Boolean =false;


			char_mc.addEventListener(Event.ENTER_FRAME, moveChar);
			function moveChar(event:Event):void {


				if (leftKeyDown) {
					char_mc.x -= mainSpeed;
					char_mc.scaleX = -1;
					if (char_mc.currentFrame != 2) {
						char_mc.gotoAndStop(2);
					}
				}
				if (rightKeyDown) {
					char_mc.x += mainSpeed;
					char_mc.scaleX = +1;
					{
						if (char_mc.currentFrame != 2) {
							char_mc.gotoAndStop(2);
						}
					}
				};
				if (upKeyDown || mainJumping) {
					mainJump();
				}
			}


			//Checks if keys are down
			stage.addEventListener(KeyboardEvent.KEY_DOWN, checkKeysDown);
			function checkKeysDown(event:KeyboardEvent):void {


				if (event.keyCode == 37 || event.keyCode == 65) {
					leftKeyDown = true;

				}
				if (event.keyCode == 38 || event.keyCode == 87) {
					upKeyDown = true;
					char_mc.gotoAndStop("jump");
				}
				if (event.keyCode == 39 || event.keyCode == 68) {
					rightKeyDown = true;

				}
				if (event.keyCode == 40 || event.keyCode == 83) {
					downKeyDown = true;
					char_mc.gotoAndStop("duck");
				}
				if (left || right) {
					if (walking ==false) {
						char_mc.gotoAndStop(2);
						walking = true;
					}
				}
			}

			//Checks if keys are up and if so puts character in it's stance position.
			stage.addEventListener(KeyboardEvent.KEY_UP, checkKeysUp);
			function checkKeysUp(event:KeyboardEvent):void {

				if (event.keyCode == 37 || event.keyCode == 65) {
					leftKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 38 || event.keyCode == 87) {
					upKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 39 || event.keyCode == 68) {
					rightKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 40 || event.keyCode == 83) {
					downKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
			}

			//Runs the jump code so when the up key is pressed the character jumps.
			var mainJumping:Boolean = false;
			var jumpSpeedLimit:int = 15;
			var jumpSpeed:Number = jumpSpeedLimit;

			function mainJump():void {
				if (!mainJumping) {
					mainJumping = true;
					jumpSpeed = jumpSpeedLimit*-1;
					char_mc.y += jumpSpeed;
				} else {
					if (jumpSpeed < 0) {
						jumpSpeed *= 1 - jumpSpeedLimit/75;
						if (jumpSpeed > -jumpSpeedLimit/5) {
							jumpSpeed *= -1;
						}
					}
					if (jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit) {
						jumpSpeed *= 1 + jumpSpeedLimit/50;
					}
					char_mc.y += jumpSpeed;
					char_mc.gotoAndStop("jump");

					if (char_mc.y >= 320) {
						mainJumping = false;
						char_mc.y = 325;
						char_mc.gotoAndStop("stance");
					}
				}
			}
		}
		//Function that triggers the objects falling, when they fall and if they hit the character they dissapear.
		public function setNextObject() {
			nextObject = new Timer(1000+Math.random()*1000,1);
			nextObject.addEventListener(TimerEvent.TIMER_COMPLETE,newObject);
			nextObject.start();
		}

		public function newObject(e:Event) {
			var coins:Array = ["Coin1","Coin2"];
			var creatures:Array = ["Creature1"];
			var presents:Array = ["Presents1","Presents2","Presents3","Presents4","Presents5","Presents6","Presents7","Presents8"];

			if (Math.random() < .5) {
				var r:int = Math.floor(Math.random()*coins.length);
				var classRef:Class = getDefinitionByName(coins[r]) as Class;
				var newObject:MovieClip = new classRef();
				newObject.typestr = "coin";
			} else if (Math.random() < .5) {
				r = Math.floor(Math.random()*creatures.length);
				classRef = getDefinitionByName(creatures[r]) as Class;
				newObject = new classRef();
				newObject.typestr = "creatures";
			} else {
				r = Math.floor(Math.random()*presents.length);
				classRef = getDefinitionByName(presents[r]) as Class;
				newObject = new classRef();
				newObject.typestr = "presents";

			}

			newObject.x = Math.random()*500;
			addChild(newObject);
			objects.push(newObject);
			setNextObject();
		}
		public function moveObjects(e:Event) {
			for (var i:int=objects.length-1; i>=0; i--) {
				objects[i].y += speed;
				if (objects[i].y > 400) {
					removeChild(objects[i]);
					objects.splice(i,1);
				}
				if (objects[i].hitTestObject(char_mc)) {
					if (objects[i].typestr == "coin") {
						coin += 1;
					} else if (objects[i].typestr == "presents") {
						present += 1;
					} else {
						present -= 3;
						changeHealth(-50);
					}
					if (coin < 0) {
						coin = 0;
					}
					if (present < 0) {
						present = 0;
					}
					coinDisplay.text = ""+coin;
					presentDisplay.text = ""+present;
					removeChild(objects[i]);
					objects.splice(i,1);

					//This function changes the health
					function changeHealth(healthDiff:Number):void {
						healthDiff /= 100;
						if (mcHealth.scaleX + healthDiff >= 1) {
							mcHealth.scaleX = 1;
						} else if (mcHealth.scaleX + healthDiff <= 0) {
							
THIS IS WHERE I WANT IT TO GO TO NEXT FRAME AND STOP THE CODE FROM RUNNING.

						} else {
							mcHealth.scaleX += healthDiff;
						}
					}
				}
			}
		}
	}
}

Hope someone can help, thank you

[Pazil]

When player's health is zero, then set a flag to true. Then in your newObject function, check the flag before calling setNextObject function again.

P.

[FullMetalEdward]

When player's health is zero, then set a flag to true. Then in your newObject function, check the flag before calling setNextObject function again.

P.

What do you mean by flag?

[cadin]

If you're just asking how to stop the enterFrame event you'd put

removeEventListener(Event.ENTER_FRAME, moveObjects) 

in that little block where you check for health reaching zero.

Sorry if that's not what you're asking.

[trogdor458]

What do you mean by flag?

A flag is just a variable set to true or false
Just put the entire block of code in an if statement
Make it so the if statement only executes when your guy's alive n well

[Pazil]

Well, instead of nesting the whole thing in an if statement, only have:

if (!alive)
     setNextObject(); 

in your newObject function. You might get a case where one more enemy spawns...

What I'd recommend doing is:

nextObject.removeEventListener( TimerEvent.TIMER_COMPLETE, newObject);

Put this in the if statement when health is zero. (Place this where you wrote:
THIS IS WHERE I WANT IT TO GO TO NEXT FRAME AND STOP THE CODE FROM RUNNING.)

P.

[FullMetalEdward]

Well, instead of nesting the whole thing in an if statement, only have:

if (!alive)
     setNextObject(); 

in your newObject function. You might get a case where one more enemy spawns...

What I'd recommend doing is:

nextObject.removeEventListener( TimerEvent.TIMER_COMPLETE, newObject);

Put this in the if statement when health is zero. (Place this where you wrote:
THIS IS WHERE I WANT IT TO GO TO NEXT FRAME AND STOP THE CODE FROM RUNNING.)

P.

ok So I added those like this:

package {


	import flash.display.*;
	import flash.events.*;
	import flash.text.*;
	import flash.utils.Timer;
	import flash.utils.getDefinitionByName;
	import flash.media.Sound;

	//Creates a new character and places it on stage.
	public class Game extends MovieClip {
		var char_mc:Char;
		var gameOver:GameOver;
		var nextObject:Timer;
		var objects:Array = new Array();
		var coin:int = 0;
		var present:int = 0;
		var food:int = 0;
		var chary:int = 325;
		var charx:int = 250;
		const speed:Number = 7.0;
		var alive:Boolean = false;
		
		


		public function Game() {

			startButtonChar.addEventListener( MouseEvent.CLICK, onClickStartChar );
		}
		public function onClickStartChar( event:MouseEvent ):void {
			gotoAndStop(2);
			char_mc = new Char();
			char_mc.y = chary;
			char_mc.x = charx;
			addChild(char_mc);

			addEventListener(Event.ENTER_FRAME, moveObjects);
//ADDED
			if (!alive) {
			setNextObject();}




			//Sets the variables for the character's movements.
			var leftKeyDown:Boolean = false;
			var upKeyDown:Boolean = false;
			var rightKeyDown:Boolean = false;
			var downKeyDown:Boolean = false;
			var mainSpeed:Number = 15;

			char_mc.keydown = false;
			char_mc.stance= 1;
			char_mc.crouch=false;

			var left:Boolean = false;
			var right:Boolean = false;
			var walking:Boolean =false;


			char_mc.addEventListener(Event.ENTER_FRAME, moveChar);
			function moveChar(event:Event):void {


				if (leftKeyDown) {
					char_mc.x -= mainSpeed;
					char_mc.scaleX = -1;
					if (char_mc.currentFrame != 2) {
						char_mc.gotoAndStop(2);
					}
				}
				if (rightKeyDown) {
					char_mc.x += mainSpeed;
					char_mc.scaleX = +1;
					{
						if (char_mc.currentFrame != 2) {
							char_mc.gotoAndStop(2);
						}
					}
				};
				if (upKeyDown || mainJumping) {
					mainJump();
				}
			}


			//Checks if keys are down
			stage.addEventListener(KeyboardEvent.KEY_DOWN, checkKeysDown);
			function checkKeysDown(event:KeyboardEvent):void {


				if (event.keyCode == 37 || event.keyCode == 65) {
					leftKeyDown = true;

				}
				if (event.keyCode == 38 || event.keyCode == 87) {
					upKeyDown = true;
					char_mc.gotoAndStop("jump");
				}
				if (event.keyCode == 39 || event.keyCode == 68) {
					rightKeyDown = true;

				}
				if (event.keyCode == 40 || event.keyCode == 83) {
					downKeyDown = true;
					char_mc.gotoAndStop("duck");
				}
				if (left || right) {
					if (walking ==false) {
						char_mc.gotoAndStop(2);
						walking = true;
					}
				}
			}

			//Checks if keys are up and if so puts character in it's stance position.
			stage.addEventListener(KeyboardEvent.KEY_UP, checkKeysUp);
			function checkKeysUp(event:KeyboardEvent):void {

				if (event.keyCode == 37 || event.keyCode == 65) {
					leftKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 38 || event.keyCode == 87) {
					upKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 39 || event.keyCode == 68) {
					rightKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
				if (event.keyCode == 40 || event.keyCode == 83) {
					downKeyDown = false;
					char_mc.gotoAndStop("stance");
				}
			}

			//Runs the jump code so when the up key is pressed the character jumps.
			var mainJumping:Boolean = false;
			var jumpSpeedLimit:int = 15;
			var jumpSpeed:Number = jumpSpeedLimit;

			function mainJump():void {
				if (!mainJumping) {
					mainJumping = true;
					jumpSpeed = jumpSpeedLimit*-1;
					char_mc.y += jumpSpeed;
				} else {
					if (jumpSpeed < 0) {
						jumpSpeed *= 1 - jumpSpeedLimit/75;
						if (jumpSpeed > -jumpSpeedLimit/5) {
							jumpSpeed *= -1;
						}
					}
					if (jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit) {
						jumpSpeed *= 1 + jumpSpeedLimit/50;
					}
					char_mc.y += jumpSpeed;
					char_mc.gotoAndStop("jump");

					if (char_mc.y >= 325) {
						mainJumping = false;
						char_mc.y = chary;
						char_mc.gotoAndStop("stance");
					}
				}
			}
		}
		//Function that triggers the objects falling, when they fall and if they hit the character they dissapear.
		public function setNextObject() {
			nextObject = new Timer(1000+Math.random()*1000,1);
			nextObject.addEventListener(TimerEvent.TIMER_COMPLETE,newObject);
			nextObject.start();
		}

		public function newObject(e:Event) {
			var coins:Array = ["Coin1","Coin2"];
			var item:Array = ["Object1","Object2","Object3"];
			var presents:Array = ["Presents1","Presents2","Presents3","Presents4","Presents5","Presents6","Presents7","Presents8"];
			var foods:Array = ["Food1","Food2"];
			
			if (Math.random() < .5) {
				var r:int = Math.floor(Math.random()*coins.length);
				var classRef:Class = getDefinitionByName(coins[r]) as Class;
				var newObject:MovieClip = new classRef();
				newObject.typestr = "coin";
			} else if (Math.random() < .5) {
				r = Math.floor(Math.random()*item.length);
				classRef = getDefinitionByName(item[r]) as Class;
				newObject = new classRef();
				newObject.typestr = "item";
			} else if (Math.random() < .5) {
				r = Math.floor(Math.random()*foods.length);
				classRef = getDefinitionByName(foods[r]) as Class;
				newObject = new classRef();
				newObject.typestr = "food";
			} else {
				r = Math.floor(Math.random()*presents.length);
				classRef = getDefinitionByName(presents[r]) as Class;
				newObject = new classRef();
				newObject.typestr = "presents";

			}

			newObject.x = Math.random()*500;
			addChild(newObject);
			objects.push(newObject);
			setNextObject();
		}
		public function moveObjects(e:Event) {
			for (var i:int=objects.length-1; i>=0; i--) {
				objects[i].y += speed;
				if (objects[i].y > 400) {
					removeChild(objects[i]);
					objects.splice(i,1);
				}
				if (objects[i].hitTestObject(char_mc)) {
					if (objects[i].typestr == "coin") {
						jammin.play();
						coin += 1;
					} else if (objects[i].typestr == "presents") {
						tubeshot.play();
						present += 1;
					} else if (objects[i].typestr == "food") {
						bite.play();
						food += 1;
					char_mc.scaleX += 0.1;
					char_mc.scaleY += 0.1;
					char_mc.y -= 2;
					chary -=2;
					
					} else {
						changeHealth(-50);
						youch2.play();
					}
					if (coin < 0) {
						coin = 0;
					}
					if (present < 0) {
						present = 0;
					}
					coinDisplay.text = ""+coin;
					presentDisplay.text = ""+present;
					foodDisplay.text = ""+food;
					removeChild(objects[i]);
					objects.splice(i,1);

					//This function changes the health
					function changeHealth(healthDiff:Number):void {
						healthDiff /= 100;
						if (mcHealth.scaleX + healthDiff >= 1) {
							mcHealth.scaleX = 1;
						} else if (mcHealth.scaleX + healthDiff <= 0) {
//ADDED
							alive = true;
							nextObject.removeEventListener( TimerEvent.TIMER_COMPLETE, newObject);
							gotoAndStop(3);
							
						} else {
							mcHealth.scaleX += healthDiff;
						}
					}
				}
			}
		}
	}
}

Now it keeps comming up with.

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Game/moveObjects()

Any Suggestions for this