Actionscript 3 - ReferenceError: Error #1065: Variable addFrameScript is not defined - actionscript-3

I am getting this error :
ReferenceError: Error #1065: Variable addFrameScript is not defined.
at survival()
I'm having the problem when I run this code :
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.display.*;
import flash.media.SoundMixer;
import flash.media.SoundTransform;
public class survival extends Sprite {
public var ground:ground_mc = new ground_mc();
public var environment:environment_mc = new environment_mc();
public var player:player_mc = new player_mc();
public var monster:monster_mc = new monster_mc();
public var light:Sprite=new Sprite ;
public var battery:battery_mc = new battery_mc();
public var key_pressed:int=0;
public var radius:int=8;
public var player_speed:int=2;
public var monster_speed:int=1;
public var torch_power:int=150;
public var torch_step:int = 100;
public var torch_angle:int=60;
public var torch_angle_step:int=35;
public var up,down,left,right:Boolean=false;
public var flicker=0;
public var count:int;
public var sec:int;
public var torchBattery:int = 100;
var topLeft:Boolean = true;
var topRight:Boolean = false;
var bottomLeft:Boolean = false;
var bottomRight:Boolean = false;
public function survival():void {
addChild(ground);
addChild(environment);
addChild(light);
addChild(player);
addChild (battery);
addChild(monster);
player.x=250;
player.y=200;
battery.x=321;
battery.y=29;
environment.y = 0;
environment.x = 0;
ground.mask=light;
addEventListener(Event.ENTER_FRAME,on_enter_frame);
addEventListener(Event.ENTER_FRAME,on_enter_frame2);
stage.addEventListener(KeyboardEvent.KEY_DOWN, on_key_down);
stage.addEventListener(KeyboardEvent.KEY_UP, on_key_up);
}
public function on_enter_frame(e:Event):void {
if (up) {
environment.y+=player_speed;
ground.y+=player_speed;
monster.y+=player_speed;
}
if (down) {
environment.y-=player_speed;
ground.y-=player_speed;
monster.y-=player_speed;
}
if (left) {
environment.x+=player_speed;
ground.x+=player_speed;
monster.x+=player_speed;
}
if (right) {
environment.x-=player_speed;
ground.x-=player_speed;
monster.x-=player_speed;
}
if (environment.collisions.hitTestPoint(player.x, player.y+radius, true)) {
environment.y+=player_speed;
ground.y+=player_speed;
monster.y+=player_speed;
}
if (environment.collisions.hitTestPoint(player.x, player.y-radius, true)) {
environment.y-= player_speed;
ground.y-= player_speed;
monster.y-= player_speed;
}
if (environment.collisions.hitTestPoint(player.x-radius, player.y, true)) {
environment.x-= player_speed;
ground.x-= player_speed;
monster.x-= player_speed;
}
if (environment.collisions.hitTestPoint(player.x+radius, player.y, true)) {
environment.x+= player_speed;
ground.x+= player_speed;
monster.x+= player_speed;
}
var dist_x:Number=player.x-mouseX;
var dist_y:Number=player.y-mouseY;
var angle:Number=- Math.atan2(dist_x,dist_y);
player.rotation=to_degrees(angle);
light.graphics.clear();
if (Math.random()*100>flicker) {
light.graphics.beginFill(0xffffff, 100);
light.graphics.moveTo(player.x, player.y);
for (var i:int=0; i<=torch_angle; i+=(torch_angle/torch_angle_step)) {
ray_angle = to_radians((to_degrees(angle)-90-(torch_angle/2)+i));
for (var j:int=1; j<=torch_step; j++) {
if (environment.collisions.hitTestPoint(player.x+(torch_power/torch_step*j)*Math.cos(ray_angle), player.y+(torch_power/torch_step*j)*Math.sin(ray_angle), true)) {
break;
}
}
light.graphics.lineTo(player.x+(torch_power/torch_step*j)*Math.cos(ray_angle), player.y+(torch_power/torch_step*j)*Math.sin(ray_angle));
}
light.graphics.lineTo(player.x, player.y);
light.graphics.endFill();
}
if (torchBattery > 0) {
count += 1;
if (count >= 30) {
count = 0;
sec += 1;
}
if (sec >= 2) {
sec = 0;
flicker += 1;
torchBattery -= 1;
changeMovement();
}
}
battery.battery.text = "Torch Battery: " + torchBattery + "%";
var theDistance:Number = distance(monster.x, player.x, monster.y, player.y);
var myVolume:Number = 2-(0.004* theDistance);
var Volume:Number = myVolume;
if (Volume < 0) {
Volume = 0;
}
SoundMixer.soundTransform = new SoundTransform(Volume);
trace(theDistance);
if (distance < 100) {
removeEventListener(Event.ENTER_FRAME,on_enter_frame);
removeEventListener(Event.ENTER_FRAME,on_enter_frame2);
stage.removeEventListener(KeyboardEvent.KEY_DOWN, on_key_down);
stage.removeEventListener(KeyboardEvent.KEY_UP, on_key_up);
removeChild(ground);
removeChild(environment);
removeChild(light);
removeChild(player);
removeChild (battery);
removeChild(monster);
gotoAndStop(2);
}
}
function on_enter_frame2 (e:Event) :void {
if (environment.collisions.hitTestPoint(monster.x, monster.y+radius, true)) {
monster.y -= monster_speed;
}
if (environment.collisions.hitTestPoint(monster.x,monster.y-radius, true)) {
monster.y += monster_speed;
}
if (environment.collisions.hitTestPoint(monster.x-radius, monster.y, true)) {
monster.x+=monster_speed;
}
if (environment.collisions.hitTestPoint(monster.x+radius, monster.y, true)) {
monster.x -= monster_speed;
}
if (topLeft) {
monster.x -= monster_speed;
monster.y -= monster_speed;
} else if (topRight) {
monster.x += monster_speed;
monster.y -= monster_speed;
} else if (bottomLeft) {
monster.x -= monster_speed;
monster.y += monster_speed;
} else if (bottomRight) {
monster.x += monster_speed;
monster.y += monster_speed;
}
}
function changeMovement():void {
var die2:Number = Math.floor(Math.random()*4);
if (die2 == 1) {
topLeft = true;
topRight = false;
bottomLeft = false;
bottomRight = false;
}
if (die2 == 2) {
topLeft = false;
topRight = true;
bottomLeft = false;
bottomRight = false;
}
if (die2 == 3) {
topLeft = false;
topRight = false;
bottomLeft = true;
bottomRight = false;
}
if (die2 == 4) {
topLeft = false;
topRight = false;
bottomLeft = false;
bottomRight = true;
}
}
public function on_key_down(e:KeyboardEvent):void {
switch (e.keyCode) {
case 37 :
left=true;
break;
case 38 :
up=true;
break;
case 39 :
right=true;
break;
case 40 :
down=true;
break;
/*case 49 :
torch_power++;
break;
case 50 :
torch_power--;
break;*/
}
}
public function on_key_up(e:KeyboardEvent):void {
switch (e.keyCode) {
case 37 :
left=false;
break;
case 38 :
up=false;
break;
case 39 :
right=false;
break;
case 40 :
down=false;
break;
}
}
public function to_radians(n:Number):Number {
return (n*0.0174532925);
}
public function to_degrees(n:Number):Number {
return (n*57.2957795);
}
function distance(x1:Number, x2:Number, y1:Number, y2:Number): Number {
var dx:Number = x1-x2;
var dy:Number = y1-y2;
return Math.sqrt(dx * dx + dy * dy);
}
}
}
On my timeline I have a blank keyframe with the sound effect of a music box playing, and a second frame with the animated jumpscare. The game is that you're in a bird's eye view of a person with a torch walking through a maze. The 'monster' moves around the maze and you must stay away from it. As it gets closer, the music box that is playing will get louder. Also, your torch only has a certain amount of battery. As the battery reduces, the torch will flicker more untill it eventually stops working. It worcked fine until I tried to make the jumpscare. This is all the coding in the game.
In the 'Compiler Errors' it also states:
/Users/ethan/Documents/Flash Stuff/Flash Stuff [from macbook]/survival/survival.as, Line 164 Warning: 1060: Migration issue: The method gotoAndStop is no longer supported. For more information, see MovieClip.gotoAndStop()..
Any suggestions or help I'll be very grateful.

Sprite Class doesn't have gotoAndStop method. This method implemented only in MovieClip class. So, you should replace
public class survival extends Sprite {
with
public class survival extends MovieClip {

Related

How can I change Nested Class in actionscript 3

I'm working off an actionscript 3 code that pulls information from other actionscript 3's. The main code is Herbfight and it references 4 others (Bullets, bugs, Goodbugs and Sprayer). Below I'm trying to combine them all into one actionscript. The reason for this is that I want to pull it in as a symbol rather then having the flash file relate to the class.
The problem is it says I can't have nested classes. Any thoughts on how i can fix this? Below is my attempt to combine the code.
Thanks,
J
package {
import flash.display.;
import flash.events.;
import flash.utils.Timer;
import flash.text.TextField;
import flash.text.*;
import flash.utils.getTimer;
import flash.geom.Point;
public class herbfight_v004 extends MovieClip {
private var aagun:Sprayer;
private var airplanes:Array;
private var goodbug:Array;
private var bullets:Array;
private var upArrow, downArrow:Boolean;
private var nextPlane:Timer;
private var nextGbugs:Timer;
private var shotsLeft:int;
private var shotsHit:int;
private var Sprayer:MovieClip
private var Bullets:MovieClip
private var bugs:MovieClip
private var GooodBugs:MovieClip
public function startherbfight_v004() {
// init score
shotsLeft = 20;
shotsHit = 0;
showGameScore();
// create gun
aagun = new Sprayer();
addChild(aagun);
// create object arrays
airplanes = new Array();
bullets = new Array();
goodbug = new Array();
// listen for keyboard
stage.addEventListener(KeyboardEvent.KEY_DOWN,keyDownFunction);
stage.addEventListener(KeyboardEvent.KEY_UP,keyUpFunction);
// look for collisions
addEventListener(Event.ENTER_FRAME,checkForHits);
// start planes flying
setNextPlane();
setNextGbugs();
public function Sprayer() {
{
// animation time// initial location of gun
this.x = 410;
this.y = 380;
// movement
addEventListener(Event.ENTER_FRAME,moveGun);
}
public function moveGun(event:Event) {
// get time difference
var timePassed:int = getTimer()-lastTime;
lastTime += timePassed;
// current position
var newy = this.y;
// move to the left
if (MovieClip(parent).upArrow) {
newy -= speed*timePassed/1000;
}
// move to the right
if (MovieClip(parent).downArrow) {
newy += speed*timePassed/1000;
}
// check boundaries
if (newy < 65) newy = 65;
if (newy > 380) newy = 380;
// reposition
this.y = newy;
}
// remove from screen and remove events
public function deleteGun() {
parent.removeChild(this);
removeEventListener(Event.ENTER_FRAME,moveGun);
}
}
public function bugs(side:String, speed:Number, altitude:Number) {
{
if (side == "left") {
this.x = -50; // start to the left
dx = speed; // fly left to right
this.scaleX = 1; // reverse
} else if (side == "right") {
this.x = -50; // start to the right
dx = -speed; // fly right to left
this.scaleX = 1; // not reverse
}
this.y = altitude; // vertical position
// choose a random plane
this.gotoAndStop(Math.floor(Math.random()*4+1));
// set up animation
addEventListener(Event.ENTER_FRAME,movePlane);
lastTime = getTimer();
}
public function movePlane(event:Event) {
// get time passed
var timePassed:int = getTimer()-lastTime;
lastTime += timePassed;
// move plane
this.x += dx*timePassed/2000;
// check to see if off screen
if ((dx < 0) && (x < -50)) {
deletePlane();
} else if ((dx > 0) && (x > 350)) {
deletePlane();
}
}
// plane hit, show explosion
public function planeHit() {
removeEventListener(Event.ENTER_FRAME,movePlane);
MovieClip(parent).removePlane(this);
gotoAndPlay("explode");
}
// delete plane from stage and plane list
public function deletePlane() {
removeEventListener(Event.ENTER_FRAME,movePlane);
MovieClip(parent).removePlane(this);
parent.removeChild(this);
}
}
public function Bullets(x,y:Number, speed: Number) {
{
// set start position
this.x = x;
this.y = y;
// get speed
dx = speed;
// set up animation
lastTime = getTimer();
addEventListener(Event.ENTER_FRAME,moveBullet);
}
public function moveBullet(event:Event) {
// get time passed
var timePassed:int = getTimer()-lastTime;
lastTime += timePassed;
// move bullet
this.x += dx*timePassed/1000;
// bullet past top of screen
if (this.x < 0) {
deleteBullet();
}
}
// delete bullet from stage and plane list
public function deleteBullet() {
MovieClip(parent).removeBullet(this);
parent.removeChild(this);
removeEventListener(Event.ENTER_FRAME,moveBullet);
}
}
public function GoodBugs(side:String, speed:Number, altitude:Number) {
{
if (side == "left") {
this.x = -50; // start to the left
dx = speed; // fly left to right
this.scaleX = -1; // reverse
} else if (side == "right") {
this.x = -50; // start to the right
dx = -speed; // fly right to left
this.scaleX = -1; // not reverse
}
this.y = altitude; // vertical position
// choose a random Gbugs
this.gotoAndStop(Math.floor(Math.random()*2+1));
// set up animation
addEventListener(Event.ENTER_FRAME,moveGbugs);
lastTime = getTimer();
}
public function moveGbugs(event:Event) {
// get time passed
var timePassed:int = getTimer()-lastTime;
lastTime += timePassed;
// move Gbugs
this.x += dx*timePassed/2000;
// check to see if off screen
if ((dx < 0) && (x < -50)) {
deleteGbugs();
} else if ((dx > 0) && (x > 350)) {
deleteGbugs();
}
}
// Gbugs hit, show explosion
public function GbugsHit() {
removeEventListener(Event.ENTER_FRAME,moveGbugs);
MovieClip(parent).removeGbugs(this);
gotoAndPlay("explode");
}
// delete Gbugs from stage and Gbugs list
public function deleteGbugs() {
removeEventListener(Event.ENTER_FRAME,moveGbugs);
MovieClip(parent).removeGbugs(this);
parent.removeChild(this);
}
}
public function setNextPlane() {
nextPlane = new Timer(1000+Math.random()*1000,1);
nextPlane.addEventListener(TimerEvent.TIMER_COMPLETE,newPlane);
nextPlane.start();
}
public function newPlane(event:TimerEvent) {
// random side, speed and altitude
if (Math.random() > .2) {
var side:String = "left";
} else {
side = "right";
}
var altitude:Number = Math.random()*280+80;
var speed:Number = Math.random()*150+150;
// create plane
var p:bugs = new bugs(side,speed,altitude);
addChild(p);
airplanes.push(p);
// set time for next plane
setNextPlane();
}
public function setNextGbugs() {
nextGbugs = new Timer(1000+Math.random()*1000,1);
nextGbugs.addEventListener(TimerEvent.TIMER_COMPLETE,newGbugs);
nextGbugs.start();
}
public function newGbugs(event:TimerEvent) {
// random side, speed and altitude
if (Math.random() > .2) {
var side:String = "left";
} else {
side = "right";
}
var altitude:Number = Math.random()*280+80;
var speed:Number = Math.random()*150+150;
// create Gbugs
var p:GoodBugs = new GoodBugs(side,speed,altitude);
addChild(p);
goodbug.push(p);
// set time for next Gbugs
setNextGbugs();
}
// check for collisions
public function checkForHits(event:Event) {
for(var bulletNum:int=bullets.length-1;bulletNum>=0;bulletNum--){
for (var airplaneNum:int=airplanes.length-1;airplaneNum>=0;airplaneNum--) {
if (bullets[bulletNum].hitTestObject(airplanes[airplaneNum])) {
airplanes[airplaneNum].planeHit();
bullets[bulletNum].deleteBullet();
shotsHit++;
showGameScore();
break;
}
}
}
for(var bulletNum:int=bullets.length-1;bulletNum>=0;bulletNum--){
for (var GoodBugsNum:int= goodbug.length-1; GoodBugsNum>=0; GoodBugsNum--) {
if (bullets[bulletNum].hitTestObject(goodbug [GoodBugsNum])) {
goodbug [GoodBugsNum]. GbugsHit();
bullets[bulletNum].deleteBullet();
shotsHit--;
showGameScore();
break;
}
}
}
if ((shotsLeft == 0) && (bullets.length == 0)) {
endGame();
}
}
// key pressed
public function keyDownFunction(event:KeyboardEvent) {
if (event.keyCode == 38) {
upArrow = true;
} else if (event.keyCode == 40) {
downArrow = true;
} else if (event.keyCode == 32) {
fireBullet();
}
}
// key lifted
public function keyUpFunction(event:KeyboardEvent) {
if (event.keyCode == 38) {
upArrow = false;
} else if (event.keyCode == 40) {
downArrow = false;
}
}
// new bullet created
public function fireBullet() {
if (shotsLeft <= 0) return;
var b:Bullets = new Bullets(aagun.x,aagun.y,-300);
addChild(b);
bullets.push(b);
shotsLeft--;
showGameScore();
}
public function showGameScore() {
showScore.text = String("Score: "+shotsHit);
showShots.text = String("Shots Left: "+shotsLeft);
}
// take a plane from the array
public function removePlane(plane:bugs) {
for(var i in airplanes) {
if (airplanes[i] == plane) {
airplanes.splice(i,1);
break;
}
}
}
// take a plane from the array
public function removeGbugs(Gbugs:GoodBugs) {
for(var i in goodbug) {
if (goodbug[i] == Gbugs) {
goodbug.splice(i,1);
break;
}
}
}
// take a bullet from the array
public function removeBullet(bullet:Bullets) {
for(var i in bullets) {
if (bullets[i] == bullet) {
bullets.splice(i,1);
break;
}
}
}
// game is over, clear movie clips
public function endGame() {
// remove planes
for(var i:int=airplanes.length-1;i>=0;i--) {
airplanes[i].deletePlane();
}
for(var i:int= goodbug.length-1;i>=0;i--) {
goodbug [i].deleteGbugs();
}
airplanes = null;
goodbug = null
aagun.deleteGun();
aagun = null;
stage.removeEventListener(KeyboardEvent.KEY_DOWN,keyDownFunction);
stage.removeEventListener(KeyboardEvent.KEY_UP,keyUpFunction);
removeEventListener(Event.ENTER_FRAME,checkForHits);
nextPlane.stop();
nextPlane = null;
nextGbugs.stop();
nextGbugs = null;
gotoAndStop("gameover");
}
}
}

How do I call methods and properties from parent classes?

I'm new here (and also relatively new with AS3 as well), so bear with me.
I've only discovered OOP 2 weeks ago, and before then, I knew only the most rudimentary knowledge of AS3. So I did make a lot of improvement, but one thing's been bugging me.
I can never seem to call functions and methods from parent classes. Even with setters and getters, the child class always gives me an output error. It looks something like this.
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Axiom/clicked()
This is an AS3 project that I'm working on right now that is giving me this problem.
Here's some basic background of the project.
I have the main class, called Main, and some other classes, called Axiom and Textbox. Main creates Axiom into a movieclip (background) that's already present on the stage. Axiom creates Textbox when clicked. Axiom calls a method called mouseClick from Main (plays a sound), and Textbox calls some properties from Axiom (text for the textbox).
I have attempted to use
MovieClip(this.parent).mouseClick();
and declaring a new variable in the child class, like this.
private var main:Main;
...
main.mouseClick();
And this leads me to question - what am I doing wrong, and how should I do it properly?
Here are the classes for reference.
Main.as
package {
import flash.ui.Keyboard;
import flash.events.Event;
import flash.events.EventDispatcher;
import flash.display.MovieClip;
import flash.events.KeyboardEvent;
import flash.ui.Mouse;
import flash.events.MouseEvent;
public class Main extends MovieClip {
// sound
private var music:Music = new Music();
private var clickSound:Click = new Click();
// instructions
private var instructions:Instructions = new Instructions();
// mouse
private var cursor:Cursor = new Cursor();
// player
private var player:Player = new Player();
private var animationState:String = "standing";
private var directionState:String = "right";
// Axiom
private var axiom:Axiom = new Axiom();
// movement
private var rightPressed:Boolean = false;
private var leftPressed:Boolean = false;
private var upPressed:Boolean = false;
private var downPressed:Boolean = false;
private var xMovement:Number = 0;
private var yMovement:Number = 0;
private var speed:Number = 22;
private var friction:Number = 0.9;
private var rDoubleTapCounter:int = 0;
private var lDoubleTapCounter:int = 0;
private var dDoubleTapCounter:int = 0;
private var uDoubleTapCounter:int = 0;
private var doubleTapCounterMax:int = 5;
private var running:Boolean = false;
public function Main() {
// constructor code
// mouse
stage.addChild(cursor);
cursor.mouseEnabled = false;
Mouse.hide();
// instructions
instructions.x = 640;
instructions.y = 120;
stage.addChild(instructions);
// add player
player.x = 642;
player.y = 448.95;
player.gotoAndStop(directionState);
player.right.gotoAndStop(animationState);
addChild(player);
// add Axiom
axiom.x = 300;
axiom.y = -150;
back.addChild(axiom);
// keyboard events
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, keyReleased);
// music
music.play(0, int.MAX_VALUE);
// loop
stage.addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(e:Event):void {
// set mouse
cursor.x = stage.mouseX;
cursor.y = stage.mouseY;
// set Movement to speed
if (rightPressed) {
if (upPressed) {
if (running || (rDoubleTapCounter <= doubleTapCounterMax && uDoubleTapCounter <= doubleTapCounterMax)) {
xMovement = speed * 2;
yMovement = speed * -2;
} else {
xMovement = speed;
yMovement = speed * -1;
}
} else if (downPressed) {
if (running || (rDoubleTapCounter <= doubleTapCounterMax && dDoubleTapCounter <= doubleTapCounterMax)) {
xMovement = speed * 2;
yMovement = speed * 2;
} else {
xMovement = speed;
yMovement = speed;
}
} else if (running || rDoubleTapCounter <= doubleTapCounterMax) {
xMovement = speed * 2;
} else {
xMovement = speed;
}
} else if (leftPressed) {
if (upPressed) {
if (running || (lDoubleTapCounter <= doubleTapCounterMax && uDoubleTapCounter <= doubleTapCounterMax)) {
xMovement = speed * -2;
yMovement = speed * -2;
} else {
xMovement = speed * -1;
yMovement = speed * -1;
}
} else if (downPressed) {
if (running || (lDoubleTapCounter <= doubleTapCounterMax && dDoubleTapCounter <= doubleTapCounterMax)) {
xMovement = speed * -2;
yMovement = speed * 2;
} else {
xMovement = speed * -1;
yMovement = speed;
}
} else if (running || lDoubleTapCounter <= doubleTapCounterMax) {
xMovement = speed * -2;
} else {
xMovement = speed * -1;
}
} else if (downPressed) {
if (dDoubleTapCounter <= doubleTapCounterMax || running) {
yMovement = speed * -2;
} else {
yMovement = speed * -1;
}
} else if (upPressed) {
if (uDoubleTapCounter <= doubleTapCounterMax || running) {
yMovement = speed * -2;
} else {
yMovement = speed * -1;
}
}
// double tap counter
if (rightPressed == false) {
rDoubleTapCounter++;
}
if (leftPressed == false) {
lDoubleTapCounter++;
}
if (downPressed == false) {
dDoubleTapCounter++;
}
if (upPressed == false) {
uDoubleTapCounter++;
}
// change labels
if (player.currentLabel != animationState) {
player.right.gotoAndStop(animationState);
}
// friction
xMovement *= friction;
yMovement *= friction;
// animationState and stop
if (Math.abs(xMovement) > 1) {
if (Math.abs(xMovement) > 22) {
animationState = "running";
running = true;
} else {
animationState = "trotting";
running = false;
}
} else {
animationState = "standing";
xMovement = 0;
}
// right or left facing
if (xMovement > 0) {
player.scaleX = 1;
} else if (xMovement < 0) {
player.scaleX = -1;
}
//movement
if (back.x >= back.width / 2 - 50) {
if (player.x >= 642 && xMovement > 0) {
player.x = 642;
back.x -= xMovement;
} else {
if (player.x <= player.width / 2 && xMovement < 0) {
xMovement = 0;
} else {
player.x += xMovement;
}
}
} else if (back.x <= 1280 - back.width / 2 + 50) {
if (player.x <= 642 - 30 && xMovement < 0) {
player.x = 642;
back.x -= xMovement;
} else {
if (player.x >= 1280 + 30 - player.width / 2 && xMovement > 0) {
xMovement = 0;
} else {
player.x += xMovement;
}
}
} else {
back.x -= xMovement;
}
}
private function keyPressed(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.RIGHT) {
rightPressed = true;
} else if (e.keyCode == Keyboard.LEFT) {
leftPressed = true;
} else if (e.keyCode == Keyboard.DOWN) {
downPressed = true;
} else if (e.keyCode == Keyboard.UP) {
upPressed = true;
}
}
private function keyReleased(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.RIGHT) {
rightPressed = false;
rDoubleTapCounter = 0;
} else if (e.keyCode == Keyboard.LEFT) {
leftPressed = false;
lDoubleTapCounter = 0;
} else if (e.keyCode == Keyboard.DOWN) {
downPressed = false;
dDoubleTapCounter = 0;
} else if (e.keyCode == Keyboard.UP) {
upPressed = false;
uDoubleTapCounter = 0;
}
}
public function mouseClick():void {
clickSound.play();
}
}
}
Axiom.as
package {
import flash.events.MouseEvent;
import flash.events.EventDispatcher;
import flash.display.MovieClip;
public class Axiom extends MovieClip {
private var speechBox:Textbox = new Textbox();
private var speech:String = "Something came out of that pop.";
private var main:Main;
public function Axiom() {
// constructor code
this.addEventListener(MouseEvent.CLICK, onClickStage);
this.addEventListener(MouseEvent.CLICK, clicked);
}
private function onClickStage(e:MouseEvent):void {
trace(e.target,e.target.name);
}
private function clicked(e:MouseEvent):void {
main.mouseClick();
stage.addChild(speechBox);
this.removeEventListener(MouseEvent.CLICK, clicked);
}
public function get words():String {
return speech;
}
public function removeThis():void {
this.addEventListener(MouseEvent.CLICK, clicked);
removeChild(speechBox);
}
}
}
Textbox.as
package {
import flash.events.MouseEvent;
import flash.display.MovieClip;
import com.greensock.TweenLite;
public class Textbox extends MovieClip{
private var axiom:Axiom;
private var main:Main;
public function Textbox() {
// constructor code
this.x = 40;
this.y = 360;
this.textBox.text = axiom.words;
TweenLite.from(this, 0.3, {x: "10", alpha: 0});
this.addEventListener(MouseEvent.CLICK, nextPage);
}
private function nextPage(e:MouseEvent):void{
main.mouseClick();
TweenLite.to(this, 0.3, {x: "-10", alpha: 0});
MovieClip(this.parent).removeThis();
}
}
}
Instead of trying to call functions of the parent (rarely a good idea), use Events instead.
In your Axiom Class:
package {
...import statements
public class Axiom extends MovieClip {
private var speechBox:Textbox = new Textbox();
private var speech:String = "Something came out of that pop.";
private var main:Main; //this shouldn't be here, ideally, Axiom knows NOTHING about the main class.
public function Axiom() {
// constructor code
this.addEventListener(MouseEvent.CLICK, onClickStage);
this.addEventListener(MouseEvent.CLICK, clicked);
}
private function onClickStage(e:MouseEvent):void {
trace(e.target,e.target.name);
}
private function clicked(e:MouseEvent):void {
//main.mouseClick(); // unneccesary
dispatchEvent(e); //the event you caught by performing a click will be dispatched again, so that the parent can react to it
stage.addChild(speechBox); //Axiom might not have access to the stage, addChild would suffice
this.removeEventListener(MouseEvent.CLICK, clicked);
}
public function get words():String {
return speech;
}
public function removeThis():void {
this.addEventListener(MouseEvent.CLICK, clicked);
removeChild(speechBox);
}
}
}
and in your Main Class
axiom.addEventListener(MouseEvent.CLICK, onAximClicked);
private function onAxiomClicked(e:MouseEvent):void{
//now you can use the parents (in this case an Object of the Main class) functions
mouseClick();
}

Bullet fires perfectly in three directions, but not left

I'm quite new with actionscript, and have been scrapping together a little test game to sort of get used to the language, get my feet wet. The premise behind the game is pretty average, I have a character that can move in 8 directions, can pick up several keys that are randomly placed, and open a door when he possesses a key.
The problem comes in to play with the bullet shooting. I don't know much about trigonometry, so when a key is pressed, i just use the .rotate property to turn the player. I pass the .rotate integer into my bullet class and use that to tell which direction the bullet should travel. It works perfectly for the up, down, and right movements, but when the character is facing left the bullet is created but has no velocity whatsoever, and for the life of me I cannot figure out where the error in the code is.
If someone could look over my code and help me out, I would be much appreciated. I'm sure it's something simple that I'm just missing. I know it's a bit sloppy, so if there's any other tips you want to pass on to a novice please feel free!!
Thank you so much guys.
Main Class
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.text.TextField;
public class Main extends MovieClip
{
var player:Player;
var inventory:Inventory;
var invArray:Array = new Array();
var key:_Key;
var vx:int;
var maxSpeed:int;
var key_Up:Boolean;
var key_Down:Boolean;
var key_Left:Boolean;
var key_Right:Boolean;
var maxKey:int;
var keyCount:TextField;
var keysUp:int;
var door:Door;
var doorOpen:Boolean;
var wall1:Wall;
var wall2:Wall;
var wallCollide:Boolean;
var bulletTime:int;
var bulletLimit:int;
var bulletShoot:Boolean;
static var playerRotation:int;
public function Main()
{
init();
}
public function init():void
{
stage.addEventListener(Event.ENTER_FRAME, gameLoop);
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
initPlayer();
initVariables();
initInventory();
initItems();
}
public function gameLoop(e:Event):void
{
movePlayer();
collisionDetection();
bullet();
}
public function keyDownHandler(e:KeyboardEvent):void
{
switch (e.keyCode)
{
case 37 :
key_Left = true;
break;
case 38 :
key_Up = true;
break;
case 39 :
key_Right = true;
break;
case 40 :
key_Down = true;
break;
case 32:
if(bulletShoot)
{
bulletShoot = false;
var newBullet:Bullet = new Bullet(player.rotation);
newBullet.x = player.x;
newBullet.y = player.y;
addChild(newBullet);
}
}
}
public function keyUpHandler(e:KeyboardEvent):void
{
switch (e.keyCode)
{
case 37 :
key_Left = false;
break;
case 38 :
key_Up = false;
break;
case 39 :
key_Right = false;
break;
case 40 :
key_Down = false;
break;
}
}
public function movePlayer():void
{
if (key_Left && !key_Right)
{
player.x -= maxSpeed;
player.rotation = 270;
}
if (key_Right && !key_Left)
{
player.x += maxSpeed;
player.rotation = 90;
}
if (key_Up && !key_Down)
{
player.y -= maxSpeed;
player.rotation = 0;
}
if (key_Down && !key_Up)
{
player.y += maxSpeed;
player.rotation = 180;
}
/*if ( key_Left && key_Up && !key_Right && !key_Down )
{
player.rotation = 315;
}
if ( key_Right && key_Up && !key_Left && !key_Down )
{
player.rotation = 45;
}
if ( key_Left && key_Down && !key_Right && !key_Up )
{
player.rotation = 225;
}
if ( key_Right && key_Down && !key_Left && !key_Up )
{
player.rotation = 135;
}*/
}
public function initPlayer():void
{
player = new Player();
player.x = stage.stageWidth * .5;
player.y = stage.stageHeight * .5;
stage.addChild(player);
}
public function initVariables():void
{
vx = 0;
maxSpeed = 4;
key_Up = false;
key_Down = false;
key_Left = false;
key_Right = false;
maxKey = 3;
keysUp = 0;
doorOpen = false;
wallCollide = false;
bulletTime = 0;
bulletLimit = 12;
bulletShoot = true ;
}
public function collisionDetection():void
{
for (var i:int=0; i < invArray.length; i++)
{
key = invArray[i];
if (player.hitTestObject(key))
{
stage.removeChild(key);
invArray.splice(i, 1);
keysUp++;
//trace(keysUp);
i--;
keyCount.text = String(keysUp);
break;
}
}
if (player.hitTestPoint(door.x,door.y + 25,true) && (keysUp > 0) && ! doorOpen)
{
door.gotoAndStop(2);
keysUp--;
invArray.pop();
trace(keysUp);
keyCount.text = String(keysUp);
doorOpen = true;
}
if (player.hitTestObject(door) && (keysUp == 0) && ! doorOpen)
{
wallCollide = true;
}
if (player.hitTestObject(wall1))
{
wallCollide = true;
}
if (player.hitTestObject(wall2))
{
wallCollide = true;
}
if (wallCollide == true)
{
player.y += 4;
wallCollide = false;
}
}
public function initInventory():void
{
inventory = new Inventory();
inventory.x = stage.stageWidth * .15;
inventory.y = stage.stageHeight * .90;
stage.addChild(inventory);
keyCount = new TextField();
stage.addChild(keyCount);
keyCount.x = inventory.x - 8;
keyCount.y = inventory.y + 3;
keyCount.text = String(keysUp);
//keyCount.border = true;
keyCount.width = 20;
keyCount.height = 20;
}
public function initItems():void
{
while (invArray.length < maxKey)
{
key = new _Key ;
key.x = Math.random() * 550;
key.y = Math.random() * 300;
stage.addChild(key);
invArray.push(key);
}
door = new Door();
door.x = 250;
door.y = 25;
wall1 = new Wall();
stage.addChild(wall1);
wall1.x = door.x - 175;
wall1.y = door.y;
wall2 = new Wall();
stage.addChild(wall2);
wall2.x = door.x + 175;
wall2.y = door.y;
stage.addChild(door);
}
public function bullet():void
{
if (bulletTime < bulletLimit)
{
bulletTime++;
} else
{
bulletShoot = true;
bulletTime = 0;
}
}
}
}
Bullet Class
package {
import flash.display.MovieClip;
import flash.events.Event;
public class Bullet extends MovieClip {
public var _root:Object;
public var speed:int = 10;
public var bulletRotation:int;
public function Bullet(pRotation:int) {
addEventListener(Event.ADDED, beginClass);
addEventListener(Event.ENTER_FRAME, eFrame);
bulletRotation = pRotation;
}
private function beginClass(e:Event):void
{
_root = MovieClip(root);
}
private function eFrame(e:Event):void
{
if (bulletRotation == 0)
{
this.y -= speed;
}
else if (bulletRotation == 90)
{
this.x += speed;
}
else if(bulletRotation == 270)
{
this.x -= speed;
}
else if(bulletRotation == 180)
{
this.y += speed;
}
if(this.y < -1 * this.height)
{
removeEventListener(Event.ENTER_FRAME, eFrame);
_root.removeChild(this);
}
if(this.x < -1 * this.width)
{
removeEventListener(Event.ENTER_FRAME, eFrame);
_root.removeChild(this);
}
}
}
}
In Bullet class, change 270 to -90, at line 38:
else if(bulletRotation == -90)
{
this.x -= speed;
}

Subclassing Classes and Using Booleans in AS3

Two questions; Don't have code this time but they should be simple.
1) AS3 wants me to subclass a class that extends Stage; I'm not figuring out how to do this because it gives the error on the line of the package...
code is basically:
package
{
import flash.whatever.Stage
public class thisclass extends Stage
{
public function thisclass()
{
}
}
}
Not sure if I got all caps correct, I have the code at school. Do I need to put something in the function? If so what?
2) AS3 also wants me to use attributes for variables.
var I:Boolean;
if (I == true)
The error is on the if line...
Should I declare it as I.something? Change it to lower case? (would have tested but didn't think of it while I was at school)
UPDATE: I tried using .value and declaring and using the boolean as .something, nothing worked their, neither did trying to use lowercase... Couldn't get my blank stage class to work either...
Another problem: what is the import flash.whatever.whatever for switch cases?
NEW STUFF:
package
{
import flash.events.*
import flash.ui.*
import flash.display.MovieClip
public class tank extends MovieClip
{
var ii:Boolean; var kk:Boolean; var ww:Boolean; var ss:Boolean;
public function tank()
{
this.addEventListener(Event.ENTER_FRAME, update);
stage.addEventListener(KeyboardEvent.KEY_UP, keyup);
stage.addEventListener(KeyboardEvent.KEY_DOWN, keydown);
this.x = 500; this.y = 500;
}
public function update(event:Event):void
{
var rotang = 0;
var speed;
if(ii==true)
{
rotang = rotang + 1;
}
if(kk==true)
{
rotang = rotang - 1;
}
if(ww==true)
{
rotang = rotang - 1;
}
if(speed > 0)
{
speed = speed - 1;
}
if(speed < 0)
{
speed = speed + 1;
}
if(ss==true)
{
rotang = rotang + 1;
}
if(ii==true && ww==true)
{
speed = speed + 3;
}
if(kk==true && ss==true)
{
speed = speed - 3;
}
if(speed > 30)
{
speed = 30;
}
if(speed < -30)
{
speed = -30;
}
var vy = Math.sin(this.degreesToRadians(rotang))*speed;
var vx = Math.cos(this.degreesToRadians(rotang))*speed;
this.y = this.y + vy;
this.x = this.x + vx;
this.rotation = rotang * Math.PI / 180;
}
public function degreesToRadians(param1:Number) : Number
{
return param1 * Math.PI / 180;
}
public function keyup(event:KeyboardEvent):void
{
switch(event.keyCode)
{
case 87 :
ww = false;
break;
case 83 :
ss = false;
break;
case 73 :
ii = false;
break;
case 75 :
kk = false;
break;
}
}
public function keydown(event:KeyboardEvent):void
{
switch(event.keyCode)
{
case 87 :
ww = true;
break;
case 83 :
ss = true;
break;
case 73 :
ii = true;
break;
case 75 :
kk = true;
break;
}
}
}
}
try this :
package
{
import flash.display.MovieClip;
public class myClass extends MovieClip
{
private var bln:Boolean = false;
public function myClass()
{
if (bln == false)
{
trace("Value of boolean is false");
}
}
}
}
this is working.

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

I am creating a platformer game. However, I have encountered an error after creating a collision boundary on platform to make the player jump on the platform without dropping.
I have create a rectangle box and I export it as platForm
Here's the output of the error:
The error keep repeating itself over and over again....
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Boy/BoyMove()
Main class:
package
{
import flash.display.*;
import flash.text.*;
import flash.events.*;
import flash.utils.Timer;
import flash.text.*;
public class experimentingMain extends MovieClip
{
var count:Number = 0;
var myTimer:Timer = new Timer(10,count);
var classBoy:Boy;
//var activateGravity:gravity = new gravity();
var leftKey, rightKey, spaceKey, stopAnimation:Boolean;
public function experimentingMain()
{
myTimer.addEventListener(TimerEvent.TIMER, scoreUp);
myTimer.start();
classBoy = new Boy();
addChild(classBoy);
stage.addEventListener(KeyboardEvent.KEY_DOWN, pressTheDamnKey);
stage.addEventListener(KeyboardEvent.KEY_UP, liftTheDamnKey);
}
public function pressTheDamnKey(event:KeyboardEvent):void
{
if (event.keyCode == 37)
{
leftKey = true;
stopAnimation = false;
}
if (event.keyCode == 39)
{
rightKey = true;
stopAnimation = false;
}
if (event.keyCode == 32)
{
spaceKey = true;
stopAnimation = true;
}
}
public function liftTheDamnKey(event:KeyboardEvent):void
{
if (event.keyCode == 37)
{
leftKey = false;
stopAnimation = true;
}
if (event.keyCode == 39)
{
rightKey = false;
stopAnimation = true;
}
if (event.keyCode == 32)
{
spaceKey = false;
stopAnimation = true;
}
}
public function scoreUp(event:TimerEvent):void
{
scoreSystem.text = String("Score : "+myTimer.currentCount);
}
}
}
Boy class:
package
{
import flash.display.*;
import flash.events.*;
public class Boy extends MovieClip
{
var leftKeyDown:Boolean = false;
var upKeyDown:Boolean = false;
var rightKeyDown:Boolean = false;
var downKeyDown:Boolean = false;
//the main character's speed
var mainSpeed:Number = 15;
//whether or not the main guy is jumping
//var mainJumping:Boolean = false;
var mainJumping:Boolean = false;
//how quickly should the jump start off
var jumpSpeedLimit:int = 40;
//the current speed of the jump;
var jumpSpeed:Number = 0;
var gravity:Number = 10;
var theGround:ground = new ground();
//var theCharacter:MovieClip;
public var currentX,currentY:int;
public function Boy()
{
this.x = 600;
this.y = 540;
addEventListener(Event.ENTER_FRAME, BoyMove);
}
public function BoyMove(event:Event):void
{
currentX = this.x;
currentY = this.y;
if (MovieClip(parent).leftKey)
{
currentX -= mainSpeed;
MovieClip(this).scaleX = 1;
}
if (MovieClip(parent).rightKey)
{
currentX += mainSpeed;
MovieClip(this).scaleX = -1;
}
if (MovieClip(parent).spaceKey || mainJumping)
{
mainJump();
}
this.x = currentX;
this.y = currentY;
}
public function mainJump():void
{
currentY = this.y;
if (! mainJumping)
{
mainJumping = true;
jumpSpeed = jumpSpeedLimit * -1;
currentY += jumpSpeed;
}
else
{
if (jumpSpeed < 0)
{
jumpSpeed *= 1 - jumpSpeedLimit / 250;
if (jumpSpeed > -jumpSpeedLimit/12)
{
jumpSpeed *= -2;
}
}
}
if (jumpSpeed > 0 && jumpSpeed <= jumpSpeedLimit)
{
jumpSpeed *= 1 + jumpSpeedLimit / 120;
}
currentY += jumpSpeed;
if (MovieClip(this).y > 500)
{
mainJumping = false;
MovieClip(this).y = 500;
}
this.y = currentY;
}
}
}
Platformer class: This is the class I want to set the boundary for the rectangle (platForm)
package
{
import flash.events.*;
import flash.display.MovieClip;
public class platForm extends MovieClip
{
var level:Array = new Array();
var classBoys:Boy = new Boy();
var speedx:int = MovieClip(classBoys).currentX;
public function platForm()
{
for (var i = 0; i < numChildren; i++)
{
if (getChildAt(i) is platForm)
{
level.push(getChildAt(i).getRect(this));
}
}
for (i = 0; i < level.length; i++)
{
if (MovieClip(classBoys).getRect(this).intersects(level[i]))
{
if (speedx > 0)
{
MovieClip(classBoys).x = level[i].left - MovieClip(classBoys).width/2;
}
if (speedx < 0)
{
MovieClip(classBoys).x = level[i].right - MovieClip(classBoys).width/2;
}
}
}
}
}
}
It's a little difficult to see exactly what is happening without being able to run your code, but the error is saying that something within your BoyMove() method is trying to reference a property (or method) of something that is null. Having looked at the BoyMove() method, I can see that there isn't a lot there that could cause this problem. The other two candidates would be
MovieClip(parent)
or
MovieClip(this)
You are attempting to access properties of both of those MovieClips. One of them must not be initialized as you expect. I suggest you do some basic debugging on that method by commenting out the lines with MovieClip(parent) and see if you still get the error. Then try the same with the line with MovieClip(this). That should be able enough to isolate the issue.