Newbie Function problem

programming flash
1

I am quite new too all this flash stuff, and just got a book on Flash Actionscripting.

When i type in the following source code, the book says that the message “Hi there!” should appear in my output box, which it doesnt.

function sayHi () {
trace(“Hi there!”);
}

What is it im doing wrong??

Cheers

2

sowry got another one here:

I have created a movie clip with a round ball and on the main timeline i have inserted this:

_global.mainTimeline = this;

function moveBall () {
mainTimeline.ball._x += 10;
mainTimeline.ball._y += 10;
}

moveBall();

the ball is apperently supposed ta move, but it aint.

please help,

cheers

3

I think you’re going to need to define the main timeline in the function, but then again, I don’t see any reason to use that instead of a this, it’s more that trible the length

4

try:

function moveBall () {
_global.mainTimeline.ball._x += 10;
_global.mainTimeline.ball._y += 10;
}

Adam

5

to get motion, you have to call the function from the mc, so add this code to your mc:

moveBall();

and take off moveBall() after the function definition on the frame.

cheers

6

First you should use _global whenever accesing that global variable.
And the ball will move but will move only once since the function is called only one time.

7

ah, one more thing: on your mc, add:

onClipEvent(enterFrame) {
moveBall();
}

b/c you have to have a clipevent for mc… sorry i forgot

8

which is why it’s good to have that on the mc, b/c it calls that function at whatever frame rate your movie is, over and over until you stop it.

9

I’d recommend using dynamic event handlers so you can erase it whenver it is not needed anymore.
Something like:

_global.mainTimeline = this;
function moveBall() {
	_global.mainTimeline.ball._x += 10;
	_global.mainTimeline.ball._y += 10;
}
onEnterFrame = moveBall;//will execute the function at the frame rate of the movie
10

really? i didnt know that you could attach onEnterFrame to a frame w/ the same effect… tries

11

wow… i didn’t know that! thanks for enlightening me, claudio :smiley:

12

well, that pretty much sums it up pretty well, I was trying to make it easy and give a short answer, oh well

13

Anytime bodyvisual :slight_smile:

14

i can get claudios last post ta work, but none of the others.

I have posted up my .fla if someone can please have a look at it, alltho claudios worked…i want to follow the book.

cheers