EXRAIL Combined Rotary encoder and menu structure on oled.

[Asbelos]

Macros to define a simple menu structure with rotary encoder input and SCREEN output...

click selects sub menu or sequence

e.g.
MENU(menunumber, screen, screenrow, rocopins...)
MITEM(menunumber, structuredid, "text")
MACTION(menunumber,strturedid,sequence)

MENU(666,2,....)
MITEM(666,1,"Play a tune")
MITEM(666,10,"Thomas the blue engine")
MITEM(666,11,"CU Jimmy the tartan engine")
MITYEM(666,2,"STOP")
MITEM(666,20,"All locos")

MACTION(100)
PLAY(123,3,LOUD)
DONE

MACTION(200)
ESTOPALL
DONE

so roco cycles through menu items at current level, and if one is clicked it multiplies by 10 and sees whether whats next is a submenu or an action...

Note need to incorporate a BACK option...