diff options
Diffstat (limited to 'configs')
| -rw-r--r-- | configs/trackpad.lua | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/configs/trackpad.lua b/configs/trackpad.lua new file mode 100644 index 0000000..0aa9de7 --- /dev/null +++ b/configs/trackpad.lua @@ -0,0 +1,59 @@ +-- Trackpad input by Paul Hedderly +-- Expects three sources X, Y and touch +-- On the Korg Nanopad2 these would be nanoP.ch0.cc1, nanoP.ch0.cc2, nanoP.ch0.cc16 +-- so you could map and feed this script with something like: +-- [midi nanoP] +-- read = nanoPAD2 +-- write = nanoPAD2 +-- [lua trackpad] +-- script = trackpad.lua +-- .. +-- nanoP.ch0.cc1 > trackpad.x +-- nanoP.ch0.cc2 > trackpad.y +-- nanoP.ch0.cc16 > trackpad.touch +-- +-- Each touch will generate four outputs +-- - on[1-9] - the first point of touch (might not be very useful!) +-- - off[1-9] - the final point of touch +-- - swipe[1-9][1-9] - the first and last as a *simple* gesture or swipe +-- - gesture[1-9]..[1-9] - every segment you touch in order so you can do complicated gestures +-- +-- Each output of 1 is followed by an output of 0 +-- You would map these as +-- trackpad.on3 > ... +-- trackpad.off9 > .... +-- trackpad.swipe17 > .... -- would catch a line from top left to bottom left but could go anywhere in between +-- trackpad.gesture78965 > .... would catch a backwards capital L starting at the bottom left + +-- -- Reserve state variables +contact=0; +trace=""; +x=0; y=0 +lpos="" + +function x(v) -- NOTE the code assumes that we get an X before the Y - Some devices might differ! + x=math.floor((v+0.09)*2.55) +end + +function y(v) + y=2-math.floor((v+0.09)*2.55) -- 2- so that we have 1 at the top + pos=""..x+1+y*3 -- we need a string to compare + lpos=string.sub(trace,-1) + print("pos"..pos.." lpos"..lpos.." = "..trace) + if pos ~= lpos then trace=trace..pos end +end + +function touch(v) + -- print("TOUCH .."..contact..".... trace"..trace) + if v==1 then contact=1 + elseif v==0 then + first=string.sub(trace,1,1); last=string.sub(trace,-1) + ends=first..last + output("on"..last,1); output ("on"..last,0) + output("off"..last,1); output ("off"..last,0) + output("swipe"..ends,1); output ("swipe"..ends,0) + output("gesture"..trace,1); output ("gesture"..trace,0) + print("TRACKPAD>>>"..trace.." ends.."..ends) + trace="" -- reset tracking + end; +end |