[chuck-users] how do you maipulate an array with rand2()?

[Spencer Salazar]

Hi Malik,
Welcome to ChucK land!

What you have found is a bug, the lack of a feature, or a result of  
strong typing (depending on your point of view), in which the type of  
the first element of an array determines the overall type of an  
array.  This is better explained by example:

[ 0, 166.625, 333.25, 499.875, 666.5, 833.125, 999.75, 1166.375 ] @=>  
float push[];

produces an error, whereas

[ 0.0, 166.625, 333.25, 499.875, 666.5, 833.125, 999.75, 1166.375 ]  
@=> float push[];

does not produce an error (but is functionally equivalent).  The  
difference is that the first element is explicitly a float when  
initializing the array of floats.  hopefully this clarifies things a  
bit.

spencer

On Nov 13, 2006, at 10:21 PM, Malik Martin wrote:

> hi i already posted this on the forums, but it doesnt seem as  
> active as
> i imagine the mailing list might be(no offense of course).
>
> so here's my post
>
> hi
> i'm trying to access an array with rand2() but i get syntax errors:
>
> while( true )
> {
>    //1 bar at 180bpm cut into 8ths
>    float push[ 0, 166.625, 333.25, 499.875, 666.5, 833.125, 999.75,
> 1166.375 ]
>     push[Math.rand2(0,7)] => buf.pos;
>
>     1333::ms => now;
> }
>
> i made a second post with a minor update
>
> i noticed my syntax errors in comparison to otf_06.ck on page 49 in  
> the
> manual and re-wrote it.
>
> // time loop
> while( true )
> {
>    //1 bar at 180bpm cut into 8ths
>    [ 0, 166.625, 333.25, 499.875, 666.5, 833.125, 999.75, 1166.375 ] 
> @=>
> float push[];
>     push[Math.rand2(0,7)] => buf.pos;
>
>     1333::ms => now;
> }
>
> but i still get this error: [SndBufTest1.ck]:line(19): array init  
> [...]
> contains incompatible types...
>
> Malik
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