Keyswitch.lua

Automatic Keyswitch script

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--! @example Keyswitch.lua
--! Automatic Keyswitch script
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local numLayers = #Program.layers -- number of layer in the program

local lastLayerActivated = 1 -- id of the last activated layer

local KSbaseNote = 36 -- MIDI note where keyswitch are located

function onNote(e)
    if e.note >= KSbaseNote and e.note < KSbaseNote + numLayers then -- if the note is one of the keyswitch keys
        lastLayerActivated = e.note - KSbaseNote + 1 -- update the activated layer id
    else
        playNote(e.note, e.velocity, -1, lastLayerActivated) -- not a keyswitch key so we play the note on the activated layer
    end
    
end

function onRelease(e)
 -- eat event as release is done automatically by playNote
end

for i=KSbaseNote, KSbaseNote+numLayers-1 do
    setKeyColour(i, "FF0000") -- colorize keyswitch keys in red
end