Hello guys, i'm needing help (again) with a error, his name is Error #1009
TypeError: Error #1009: Não é possível acessar uma propriedade ou um método de uma referência de objeto nula.
at TheAdventureofaTopHat_Scene1_fla::MainTimeline/loop()[TheAdventureofaTopHat_Scene1_fla.MainTimeline::frame1:101]
var maxHP:int = 100;
var currentHP:int = maxHP;
var percentHP:Number = currentHP / maxHP;
function updateHealthBar():void
{
percentHP = currentHP / maxHP;
healthBar.barColor.scaleX = percentHP;
}
function restartGame():void{
currentHP = maxHP;
updateHealthBar();
}
var leftPressed:Boolean = false;
var rightPressed:Boolean = false;
var upPressed:Boolean = false;
var downPressed:Boolean = false;
var leftBumping:Boolean = false;
var rightBumping:Boolean = false;
var upBumping:Boolean = false;
var downBumping:Boolean = false;
var leftBumpPoint:Point = new Point(-30, -55);
var rightBumpPoint:Point = new Point(30, -55);
var upBumpPoint:Point = new Point(0, -120);
var downBumpPoint:Point = new Point(0, 0);
var scrollX:Number = 0;
var scrollY:Number = 500;
var xSpeed:Number = 0;
var ySpeed:Number = 0;
var speedConstant:Number = 4;
var frictionConstant:Number = 0.9;
var gravityConstant:Number = 1.8;
var jumpConstant:Number = -35;
var maxSpeedConstant:Number = 18;
var doubleJumpReady:Boolean = false;
var upReleasedInAir:Boolean = false;
var keyCollected:Boolean = false;
var doorOpen:Boolean = false;
var currentLevel:int = 1;
var animationState:String = "idle";
var bulletList:Array = new Array();
var enemyList:Array = new Array();
var bumperList:Array = new Array();
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
stage.addEventListener(Event.ENTER_FRAME, loop);
addEnemiesToLevel1();
addBumpersToLevel1();
function addEnemiesToLevel1():void
{
addEnemy(620, -115);
addEnemy(900, -490);
addEnemy(2005, -115);
addEnemy(1225, -875);
}
function addBumpersToLevel1():void
{
addBumper(500, -115);
addBumper(740, -115);
}
function loop(event:Event):void{
if(back.hitTestPoint(player.x + leftBumpPoint.x, player.y + leftBumpPoint.y, true)){ // HERE IS THE ERROR
trace("leftBumping");
leftBumping = true;
} else {
leftBumping = false;
}
}
if(back.hitTestPoint(player.x + rightBumpPoint.x, player.y + rightBumpPoint.y, true)){
trace("rightBumping");
rightBumping = true;
} else {
rightBumping = false;
}
if(back.hitTestPoint(player.x + upBumpPoint.x, player.y + upBumpPoint.y, true)){
trace("upBumping");
upBumping = true;
} else {
upBumping = false;
}
if(back.hitTestPoint(player.x + downBumpPoint.x, player.y + downBumpPoint.y, true)){
trace("downBumping");
downBumping = true;
} else {
downBumping = false;
}
if(leftPressed){
xSpeed -= speedConstant;
player.scaleX = -1;
} else if(rightPressed){
xSpeed += speedConstant;
player.scaleX = 1;
}
/*if(upPressed){
ySpeed -= speedConstant;
} else if(downPressed){
ySpeed += speedConstant;
}*/
if(leftBumping){
if(xSpeed < 0){
xSpeed *= -0.5;
}
}
if(rightBumping){
if(xSpeed > 0){
xSpeed *= -0.5;
}
}
if(upBumping){
if(ySpeed < 0){
ySpeed *= -0.5;
}
}
if(downBumping){ //if we are touching the floor
if(ySpeed > 0){
ySpeed = 0; //set the y speed to zero
}
if(upPressed){ //and if the up arrow is pressed
ySpeed = jumpConstant; //set the y speed to the jump constant
}
//DOUBLE JUMP
if(upReleasedInAir == true){
upReleasedInAir = false;
}
if(doubleJumpReady == false){
doubleJumpReady = true;
}
} else { //if we are not touching the floor
ySpeed += gravityConstant; //accelerate downwards
//DOUBLE JUMP
if(upPressed == false && upReleasedInAir == false){
upReleasedInAir = true;
//trace("upReleasedInAir");
}
if(doubleJumpReady && upReleasedInAir){
if(upPressed){ //and if the up arrow is pressed
//trace("doubleJump!");
doubleJumpReady = false;
ySpeed = jumpConstant; //set the y speed to the jump constant
}
}
}
if(keyCollected == false){
if(player.hitTestObject(back.other.doorKey)){
back.other.doorKey.visible = false;
keyCollected = true;
trace("key collected");
}
}
if(doorOpen == false){
if(keyCollected == true){
if(player.hitTestObject(back.other.lockedDoor)){
back.other.lockedDoor.gotoAndStop(2);
doorOpen = true;
trace("door open");
}
}
}
if(xSpeed > maxSpeedConstant){ //moving right
xSpeed = maxSpeedConstant;
} else if(xSpeed < (maxSpeedConstant * -1)){ //moving left
xSpeed = (maxSpeedConstant * -1);
}
xSpeed *= frictionConstant;
ySpeed *= frictionConstant;
if(Math.abs(xSpeed) < 0.5){
xSpeed = 0;
}
scrollX -= xSpeed;
scrollY -= ySpeed;
back.x = scrollX;
back.y = scrollY;
sky.x = scrollX * 0.2;
sky.y = scrollY * 0.2;
if( ( leftPressed || rightPressed || xSpeed > speedConstant || xSpeed < speedConstant *-1 ) && downBumping){
animationState = "running";
} else if(downBumping){
animationState = "idle";
} else {
animationState = "jumping";
}
if(player.currentLabel != animationState){
player.gotoAndStop(animationState);
}
if (enemyList.length > 0) // if there are any enemies left in the enemyList
{
for (var i:int = 0; i < enemyList.length; i++) // for each enemy in the enemyList
{
if (bulletList.length > 0) // if there are any bullets alive
{
for (var j:int = 0; j < bulletList.length; j++) // for each bullet in the bulletList
{
if ( enemyList.hitTestObject(bulletList) )
{
trace("Bullet and Enemy are colliding");
enemyList.removeSelf();
bulletList.removeSelf();
}
// enemyList will give you the current enemy
// bulletList will give you the current bullet
// this will check all combinations of bullets and enemies
// and see if any are colliding
}
}
}
}
//corralling the bad guys with bumpers
if (enemyList.length > 0){ //enemies left in the enemyList?
for (var k:int = 0; k < enemyList.length; k++){ // for each enemy in the enemyList
if (bumperList.length > 0){
for (var h:int = 0; h < bumperList.length; h++){ // for each bumper in the List
if ( enemyList.hitTestObject(bumperList) ){
enemyList.changeDirection();
}
}
}
}
}
//player and enemy collisions
if (enemyList.length > 0){ //enemies left?
for (var m:int = 0; m < enemyList.length; m++){ // for each enemy in the enemyList
if ( enemyList.hitTestObject(player) ){
trace("player collided with enemy");
//code to damage player goes here, maybe integrate with a health bar?
enemyList.removeSelf();
}
}
}
function nextLevel():void{
currentLevel++;
trace("Next Level: " + currentLevel);
if(currentLevel == 2){
gotoLevel2();
}
// can be extended...
// else if(currentLevel == 3) { gotoLevel3(); } // etc, etc.
}
function gotoLevel2():void{
back.other.gotoAndStop(2);
back.visuals.gotoAndStop(2);
back.collisions.gotoAndStop(2);
scrollX = 0;
scrollY = 500;
keyCollected = false;
back.other.doorKey.visible = true;
doorOpen = false;
back.other.lockedDoor.gotoAndStop(1);
}
function keyDownHandler(e:KeyboardEvent):void{
if(e.keyCode == Keyboard.A){
leftPressed = true;
} else if(e.keyCode == Keyboard.D){
rightPressed = true;
} else if(e.keyCode == Keyboard.W){
upPressed = true;
} else if(e.keyCode == Keyboard.S){
downPressed = true;
if(doorOpen && player.hitTestObject(back.other.lockedDoor)){
//proceed to the next level if the player is touching an open door
nextLevel();
}
}
}
function keyUpHandler(e:KeyboardEvent):void{
if(e.keyCode == Keyboard.A){
leftPressed = false;
} else if(e.keyCode == Keyboard.D){
rightPressed = false;
} else if(e.keyCode == Keyboard.W){
upPressed = false;
} else if(e.keyCode == Keyboard.S){
downPressed = false;
}
if(e.keyCode == Keyboard.SPACE){
fireBullet();
}
}
function fireBullet():void
{
var playerDirection:String;
if(player.scaleX < 1){
playerDirection = "left";
} else if(player.scaleX > -1){
playerDirection = "right";
}
var bullet:Bullet = new Bullet(player.x - scrollX, player.y - scrollY, playerDirection, xSpeed);
back.addChild(bullet);
bullet.addEventListener(Event.REMOVED, bulletRemoved);
bulletList.push(bullet);
}
function bulletRemoved(e:Event):void
{
e.currentTarget.removeEventListener(Event.REMOVED, bulletRemoved); //this just removes the eventListener so we don't get an error
bulletList.splice(bulletList.indexOf(e.currentTarget), 1); //this removes 1 object from the bulletList, at the index of whatever object caused this function to activate
}
function addEnemy(xLocation:int, yLocation:int):void
{
var enemy:Enemy = new Enemy(xLocation, yLocation);
back.addChild(enemy);
enemy.addEventListener(Event.REMOVED, enemyRemoved);
enemyList.push(enemy);
}
function addBumper(xLocation:int, yLocation:int):void
{
var bumper:Bumper = new Bumper(xLocation, yLocation);
back.addChild(bumper);
bumper.visible = false;
bumperList.push(bumper);
}
function enemyRemoved(e:Event):void
{
e.currentTarget.removeEventListener(Event.REMOVED, enemyRemoved); //this just removes the eventListener so we don't get an error
enemyList.splice(enemyList.indexOf(e.currentTarget), 1); //this removes 1 object from the enemyList, at the index of whatever object caused this function to activate
}
if some one can help me, thanks!
1 Correct answer
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