c++ - How do I call functions before setup? Or make a neopixels initializer before setup? [arduino] -

i need hand. i'm trying figure out how shuffle neopixel pins. right now, have function shuffles pins, don't know how define pins , start strips. i've got pastebin of have on here:

http://pastebin.com/kzav95yr

basically what's stumping me this:

neopatterns strip1(32, neopixelpins[0], neo_grb + neo_khz800, &stripcomplete);  

i can't move setup function. can't after shufflepins() in setup, , can't move strip1.begin() etc out of function or start of loop().

so. how can this? need first shuffle pins, define strips, start them. needs reusable, because @ end of game, re-shuffles pins , starts over.

i'm going have read through this: call function before main

but if can give me hand this, appreciate it. i'm new c++.

reference on neopatterns class came from: https://learn.adafruit.com/multi-tasking-the-arduino-part-3/using-neopatterns

thanks!

you want shuffle pin numbers, want before constructor called, it?

much more simply, call adafruit_neopixel::setpin in setup, once have shuffled pins. can pass old pin numbers in constructor, , change them.

i'm going have read through this: call function before main

don't go down path, unnecessarily complicated.

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can toss example adafruit_neopixel::setpin in setup?

something this:

  strip1.begin();   strip2.begin();   strip3.begin();    strip1.setpin (3);  // or whatever   strip2.setpin (4);   strip3.setpin (5); 

i gave simple example, can shuffling , stuff resulting pins 3 function calls. don't have worry shuffling before make strip1/strip2/strip3.