Re: Re: using a variable to increment another variable

[Kevin Cozens <kevin@xxxxxxxxx>]

andreithomazgmail wrote:
> (if (= nFrameAtual 6)
> (set! nOpacidadeCamada2 100)
> (set! nIncrementoCamada2 0)
> )
> 
> The second line was ALWAYS executed. I changed to:

If the second line was ALWAYS executed, it means nFrameAtual never had the 
value of 6. The first set! is executed when the condition is true. The second 
set! is executed when the condition is false.

If you meant for both set! statements to be executed only when nFrameAtual has 
a value of 6, then you need to put both statements inside a 'begin' as follows:

(if (= nFrameAtual 6)
   (begin
     (set! nOpacidadeCamada2 100)
     (set! nIncrementoCamada2 0)
   )
)

In the above, when nFrameAtual has a value of 6 it will execute all statements 
inside the begin block. If nFrameAtual has some other value, the two set! 
statements won't be executed.

-- 
Cheers!

Kevin.

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