softcut lua fix

[catfact]

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[catfact]

i'm not sure where to put scripts now (should there be a dust/dev?)

but this now works for controlling softcut (updated halfsecond.lua)

--- softcut test
engine.name = nil

function init()
    audio.level_adc_cut(1)
    audio.level_input_cut(0, 0, 1.0)
    audio.level_input_cut(1, 0, 1.0)
    audio.level_cut(1, 1.0)
    audio.pan_cut(1, 0.0)

    audio.cut_rate(0, 1)
    audio.cut_loop_start(0, 1)
    audio.cut_loop_end(0, 1.5)
    audio.cut_loop_flag(0, 1)
    audio.cut_fade_time(0, 0.1)
    audio.cut_rec_flag(0, 1)
    audio.cut_rec_level(0, 1)
    audio.cut_pre_level(0, 0.5)
    audio.cut_position(0, 1)
    audio.cut_enable(0, 1)

    audio.cut_filter_dry(0, 0.125);
    audio.cut_filter_fc(0, 1200);
    audio.cut_filter_lp(0, 0);
    audio.cut_filter_bp(0, 1.0);
    audio.cut_filter_rq(0, 2.0);
end
  
function redraw()
    screen.clear()
    screen.move(10,50)
    screen.text("crone-halfsecond")
    screen.update()
end

function key(n,z)
end

... note that the voice / channel numbers are zero-indexed, which is probably not good