I think i have a problem with my Loop

programming flash
1

Hi guys,
having some issues with converting an AS2 tutorial i found into AS3.

I have 4 Movieclips on stage, each called btn1, btn2, btn3 and btn4. Inside each movieclip is an image and then a layer above it called cover_mc.

The piece of code i have here, which is located on the main timeline, should be registering a MOUSE_OVER command and then fading out the cover_mc movieclip from within that particular Movieclip im hovering over.

import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;

for (var i:Number=1; i<=4; i++) {
var current_btn = this["btn"+i];
current_btn.addEventListener(MouseEvent.MOUSE_OVER, btnOver);
function btnOver (e:MouseEvent):void{

var currentAlpha = this.cover_mc.alpha;
var transitionTween:Tween = new Tween(this.cover_mc, "alpha", Strong.easeOut, currentAlpha, 0, 0.5, true);
}
};

problem is this keeps bringing up the output:

TypeError: Error #1010: A term is undefined and has no properties.
    at Site_fla::MainTimeline/btnOver()

Seems like the lines …

for (var i:Number=1; i<=4; i++) {
 var current_btn = this["btn"+i];

arent doing their job properly. I added a trace (current_btn); command after the MouseOver to trace out the current_btn name i was moving over and it traced:

[object btn4_8]
 TypeError: Error #1010: A term is undefined and has no properties.
     at Site_fla::MainTimeline/btnOver()
 [object btn4_8]
 TypeError: Error #1010: A term is undefined and has no properties.
     at Site_fla::MainTimeline/btnOver()
 [object btn4_8]
 TypeError: Error #1010: A term is undefined and has no properties.
     at Site_fla::MainTimeline/btnOver()
 [object btn4_8]
 TypeError: Error #1010: A term is undefined and has no properties.
     at Site_fla::MainTimeline/btnOver()

It looks like the loop bit might be a bit screwed up as it keeps saying each button is ‘btn4_8’ instead of just adding 1 to the button name each time

Then when i added the same trace command straight after the ‘var current_btn’ code it was tracing:

[object btn1_2]
 [object btn2_4]
 [object btn3_6]
 [object btn4_8]

when it should have read ‘btn1, btn2 etc…’

Sorry for the massive post :stuck_out_tongue:
Any ideas guys? its making me crazy
thanks