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about how flash works

Posted on 2003-11-02
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Last Modified: 2010-04-03
hi, guys:

i am working on a pretty huge flash program, abd are having some problem with functions.
e.g.
function trace_projectile(x){
_root.a=0;
_root.a+=x;
... ... ... //many lines
trace(_root.a);
}

say if i use it several times, could it be, that there maybe some conflict in _root.a.
i mean, that the time i trace _root.a, the same function somewhere else just
set it back to 0 or so.

are functions in flash used one after another, or could they be used parallel???
if the later, i am afraid i must change the function using different variables. :(
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Question by:Knightley
  • 2
3 Comments
 
LVL 23

Expert Comment

by:Saqib Khan
ID: 9666760
Because _root.a is defined within the function. Everything Function repeat's itself it sets your _root.a value back to 0.
You need to define the Initial Value of _root.a outside of your function like this.
_root.a=0;
function trace_projectile(x){
_root.a+=x;
... ... ... //many lines
trace(_root.a);
}
This way function will Grab Variable "a" Value once, outside of your function.
0
 
LVL 1

Author Comment

by:Knightley
ID: 9668270
i do want to the a set back to 0 every time i call the function.
i mean if i use the function twice,

do they run one after another or parallel?
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LVL 23

Accepted Solution

by:
Saqib Khan earned 20 total points
ID: 9668610
Code Runs , Line by Line, One after another.
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