Question

I have a basic game function that drops a ball every 500 milliseconds (with a timer event) and suppose to get rid of it when it hits a plate that drags after the mouse. The thing is; I tried to use the deleteChild(); function, but it only removes the visual appearance of the ball object’ without stopping its functionality, which causes a couple of problems:

1. The ball keeps going, and triggers an event of hitting the floor.
2. The dropBall(); function which animates the dropping ball, doesn’t actually animate a new ball.

this is the complete script:

//imports:
import flash.events.Event;
import fl.transitions.Tween;
import flash.text.TextField;
import flash.utils.Timer;
import flash.events.TimerEvent;

//the function 'startGame, handles all basic game functions.
function startGame() {

//inisializes the variable 'Score' and gives it a value of 0.
var Score = 0;


//enter_frame listener. calls 'movePlate'
stage.addEventListener(Event.ENTER_FRAME, movePlate);


//function 'movePlate'. makes the plate follow the mouse
function movePlate(event:Event):void {
    plate.x = mouseX;
}


//calls the dropBall function
dropBall()


//the function 'dropBall'. animates the droping ball
function dropBall() {
    var oldpost = 0;
    var randomNum:Number = Math.random() * 550;
    var xAxis:int = Math.round(randomNum);
    trace(randomNum);
    trace(xAxis);
    ball.x = xAxis;
    base.x = xAxis;
    var oldpost = xAxis;
    var ballTween:Tween = new Tween(ball, "y", null, 0, 500, 1.2, true); 
    oldpost = xAxis;
}

//function 'gameTime'. the timer function that controlls the intervals between falling eggs and ratio of good to bad eggs.
var gameTime1:Timer = new Timer(1000);
gameTime1.addEventListener(TimerEvent.TIMER, gameTimer1Function)

function gameTimer1Function(evt:TimerEvent):void {
    dropBall();
}

gameTime1.start();

//enter frame event listener. calls  'checkCollision'
addEventListener(Event.ENTER_FRAME,checkCollision);


//function checl collision. checks if the ball hits the plate
function checkCollision(event: Event):void {
    if(ball.hitTestObject(plate)) collisionDetected();
}


//function collision detected
function collisionDetected():void {
    Score ++;
    trace(Score);
    scoreText.text = Score;

}


//enter frame event listener. calls  'checkGameOver'.
addEventListener(Event.ENTER_FRAME,checkGameOver);
 //function 'checkGameOver.
function checkGameOver(event: Event):void {
    if(ball.hitTestObject(floor)) gameOver();
}


//function 'gameOver'.
function gameOver():void {
    trace('GAME OVER!!! Your Score Is: ' + Score + '.');
    trace('Asta la Vista Baby :D');

}
}
startGame();

Answer 1

Your’e code is not working as you explained. It is working like this:

You have only one ball, and it is beeing thorwn up, every second, refering to gameTime1 tick calls dropBall (), which doing the following:

• it replaces the single ball you have to the 0 possition, and animating it withhin 1.2 seconds to the bottom. var ballTween:Tween = new Tween(ball, "y", null, 0, 500, 1.2, true);
• then the score++ is triggered independantly from the ball movement because it is on the enterframe event handler, and each frame the ball is hitting the plate the score increases
• YOU SHOULD REALLY LOOK INTO YOUR CODE AGAIN, and rething the architecture, how what and when it should work ( basicaly not only you need to know, what the software should do, but you need to explain this to the software.

UPDATE:

For how to export the movieclipt int oclass follow the tutorial:
http://www.kirupa.com/developer/flashcs3/movieclips_classes_AS3_pg1.htm

Then in your logics:

Function ( createBall )

• Create a instance of the ball. ( if you followed tutorial then you know how to )
• start the enterFrame which checks if the ball hitted the panel or the ground if it did stop the enterFrame event.
• After stop deside what to do depending on what was hitted

Should look like this:

if ( hitPanel )
{
    increaseScrore ()
}
if ( hitFloor )
{
    decreaseLive () 
}

• in each of those functions increase... and decrease.. after they done everything should be removeBall function, and in increase.. then a call to the createBall so everything is starting to repeat.

P.S. No offence please, but you can learn the programming language, in this case i see you know a bit, but if you are missing some logics, you will not find it on forums… Read some basics info about logics / architectures of the applications etc… and please take a look how the instances needed to be handeled.

P.S.S. Invest some to to know wtf is OOP. 😉

best wishes! Happy holidays 🙂