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Using action script to swap bitmaps in a Movie Clip

On the main timeline I have an MC called "bkgrnd", which in its default state consists of a bitmap named "bkgrnd1_green". There are six buttons on the main Timeline, which are instances of a movie clip called "btn_1".
I would like to modify the script so that when the user clicks on the instance of "btn_1" named "btn_Res", then upon release the bitmap "bkgrnd1_green" (inside MC "bkgrnd") is replaced by bitmap "bkgrnd2_brown"

Attached is a snippet of the code that controls the actions of the six instances of "btn_1":
How can I supplement each 2 line snippet to swap the bitmaps in MC "bkgrnd"? ("btn_Comml" might switch to bitmap "bkgrnd3_blue").

Thanks!
John

btn_Res.onPress = function(){
      gotoAndStop(27);}
btn_Comml.onPress = function(){
      gotoAndStop(28);}

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blue-genie

is your bitmap inside a frame or are you attaching it at run time. if the latter are you attaching from the library or from a folder somewhere?

John Carney

ASKER

It's inside a frame, and I am attaching it from the library. But, after I get the answer for those criteria, I would love to learn how to do it the other way as well, which I imagine is more professional.

Thanks,
john

Antonio Estrada

First off; each one of them would need a linkage identifier (On the library, right click -> properties -> check "Export for ActionScript")... now afterwards, this is the code you'd need:

<code snippet>

-V

On btn_Res (after your on(rollOver) and on(rollOut) events:
 
on(release) {
	_parent.green.attachMovie("bkgrnd2_brown","brown",_parent.green.getDepth()+1);
}
 
On btn_Comml (same, after on(rollOver) and on(rollOut):
 
on(press) {
	_parent.green.attachMovie("bkgrnd3_blue","blue",_parent.green.getDepth()+1);
}
 
etc...
 
And on btnHome:
 
 
on(press) {
	_parent.green.attachMovie("bkgrnd1_green","green",_parent.green.getDepth()+1);
}

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Antonio Estrada

Oh, and if you're now using the object.Event syntax, it should be:

<code snippet>

Also, pay no mind to my on(press) and on(release) mix, I just copied it too fast :P

-V

btnRes.onPress = function() {
        green.attachMovie("bkgrnd2_brown","brown",green.getDepth()+1);
}
 
btn_Comml.onPress = function() {
        green.attachMovie("bkgrnd3_blue","blue",green.getDepth()+1);
}
 
btnHome.onPress = function() {
        green.attachMovie("bkgrnd1_green","green",green.getDepth()+1);
}

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John Carney

ASKER

Hi Vulturous,

I couldn't get yours to work, but as I played around with it, I came up with what seems to be the perfect solution: If I place brown on the timeline under green (my default background, then all I need is this code:

btn_1.onPress = function() {
green._visible = false
brown._visible = true}

btn_2.onPress = function() {
green._visible = true
brown._visible = false}

I'm definitely going to award you the points for getting me started, but in the meantime, could you tell me more about attachMovie. If my movie clip is named "bkgrnd_Brown", couldn't i just say "attachMovie("bkgrnd_Brown") ? I tried that but I got an error. What would the proper syntax be? How else would I use attachMovie?

John

ASKER CERTIFIED SOLUTION

Antonio Estrada

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John Carney

ASKER

thanks, Vulturous. Yes this helps a lot. If I can ask you one more question: when the new movie is atached, are all other contending movies gone from the stage, so that there is no need to detach the previous movie?

Thanks,

John

Antonio Estrada

The other movies will be gone if they're placed in the same depth level.

Suppose you do this:

_root.attachMovie("aSquare","mySquare",20);

And later you do this:

_root.attachMovie("aCircle","myCircle",20);

If you do that then no, you wouldn't need to unload a movie, however if you're using different depth levels then you'll have to use unloadMovie(); or removeMovieClip();

Good Luck! :)

-V