simple sequencer

[human fly]

oh .. *so it is* 🙂
don’t know if i needed ‘tonumber’ with tabl_count3[ k ].
don’t need it now.

okay, so that is running through once.
i was thinking, what if i could get it to start again,
until i tell it to stop.. so i would want to AND it with
a run/stop button – but that’s where if/elseif might not
be ideal. i’m getting a bit scared of ‘while’ !

i put it in a subfunction at the moment, in case it could
be an idea to just run/call that. looks like:

function forRange()

local tbl_count3 = {}
local a = panel:getModulatorByName("start")	:getValue()
local b = panel:getModulatorByName("end")	:getValue()

for i=a,b,1 do 
table.insert(tbl_count3,i)
--
returnConcat3 = table.concat(tbl_count3, " ")
end
--console(String(returnConcat3))
panel:getComponent("display1"):setPropertyString("uiLabelText",""..returnConcat3)

    function counter()
	for k,v in ipairs(tbl_count3) do 
	console(String(v))
		if v < b then 
		console(String("add one"))
		--addOne()
		elseif  v == b then 
		--returnToStart()
		console(String("return to start"))
		end
	    end
	end

	counter()
end

[dnaldoog]

Not sure what you are trying to do, but this code doesn’t make sense to me, because you are concatenating tbl_count3 within the loop. Surely it should be concatenated after the loop has completed?

for i=a,b,1 do 
table.insert(tbl_count3,i)
--
returnConcat3 = table.concat(tbl_count3, " ")
end

rather…

for i=a,b do 
table.insert(tbl_count3,i)
end
returnConcat3 = table.concat(tbl_count3, " ")

[human fly]

uh yes, sorry, silly mistake there; i was moving the
concatenate string-and-display bit around.

it isn’t actually necessary to concatenate it, to go
to the next bit, where it increments through the table
to the end.

after that, yesterday, i had a go at making it start
from the top again, but it crashed Ctrlr – went into
an infinite loop, i suppose. forgot that i’m just
printing out a series at the moment, not running a
counter, with a time interval etc.

so it is in fact:

local tbl_count3 = {}
local a = panel:getModulatorByName("start")	:getValue()
local b = panel:getModulatorByName("end")	:getValue()

for i=a,b,1	do 
table.insert(tbl_count3,i)
end

followed by:

for k,v in ipairs(tbl_count3) do 
console(String(v))
	if v < b then 
	console(String("add one"))
	--addOne()
	elseif  v == b then 
	--returnToStart()
	console(String("return to start"))
	end
end

getting there – this is about building the table and
‘counting’ from it. need to tie it in with a timer and
callback thing, and also make it run continuously.

also wondering about what manipulations can happen at the
point where ‘v’ gets added to the table – ie: skip steps,
or only include active steps, etc. – but i have to rebuild
a fresh mini-panel for this.

[human fly]

back to the drawing board. this won’t work like this,
because when it hits v==b (generating count=a), it
goes back one step too early.

anyway, was just a preliminary. don’t quite know what
i was going to do with it next.(was more about chucking
a varying range into a table, ..i think..)

original clocking was good; possibly if it has ‘skip’
(or conversely, ‘on’) buttons or something, and a table
of valid step numbers, and compares buttons that are ‘on’
to table ‘v’ entries, for valid callbacks, that could work.

[human fly]

had a look at reverse-listing a table – as i couldn’t get it
to work – so i found these:

for i = #tbl_count3, 1, -1 do
value = tbl_count3 [ i ]
console(String(i .. ": " .. value))
end

realise i don’t know how to list it normally with # – not doing
anything as:
for i = #tbl_count3, 1, 1 do
so not sure yet what’s wrong.

and then there was this one, more complicated:
(first thing i found, don’t like it much, or know what math.floor is)

for i=1, math.floor( #tbl_count3 / 2 ) do
tbl_count3 [ i ], tbl_count3[#tbl_count3 - i + 1] = tbl_count3[#tbl_count3 - i + 1], tbl_count3 [ i ]
end

lots of ideas for array functions here, but i don’t understand
how the table can be addressed by having the table referred to
as a variable (arr)

https://github.com/ggcrunchy/tektite_core/blob/def1371076b3f2bf5180a9aad4c9bd421796c3b1/array/funcs.lua#L172

eg: function Reverse (arr)
this one looks interesting:

function Reverse (arr)
	local i, j = 1, #arr

	while i < j do
		arr [ i ], arr [ j ] = arr [ j ], arr [ i ]

		i = i + 1
		j = j - 1
	end
end

https://forums.coronalabs.com/topic/61784-function-for-reversing-table-order/

[human fly]

okay…
to count up: (was putting 1st 1 in the wrong place, misunderstanding
what those entries were)

for i =1, #tbl_count3,1 do
value = tbl_count3 [ i ]
console(String(i .. ": " .. value))
end

to count down:

for i = #tbl_count3, 1, -1 do
value = tbl_count3 [ i ]
console(String(i .. ": " .. value))
end

[dnaldoog]

I noticed the forum code (wordpress) deletes [ n ] – is that the case here, because you would need that? 🙂

console(String(i .. ": " .. value[ i ]))

[human fly]

ah yes, sorry, forgot to amend that.
see above. slightly different.

also amended previous one.

[human fly]

for some reason, the elseif condition does not return
the reverse order here >panel>
they seem to work individually – ?!-
**note that i put the table build inside/after the
condition here, to see if it makes a difference.
i’m new to #table – just means last item in table,
doesn’t it?
(you may have to move start/end modulators to generate
the values)

if a < b then

	for i=a,b,1	do 
	table.insert(tbl_count3,i)
	end

	for i =1, #tbl_count3,1 do
    	value = tbl_count3 [ i ]
    	console(String(i .. ": " .. value))
	end

elseif a > b then 

	for i=a,b,1	do 
	table.insert(tbl_count3,i)
	end

	for i = #tbl_count3,1, -1 do
	value = tbl_count3 [ i ]
	console(String(i .. ": " .. value))
	end
end

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[human fly]

finally got it. it’s this: (panel>)
‘for i=a,b,-1’ in the elseif. reverse with ‘-1’ there, instead
of 1. was getting it counting reverse with other ways, but
showing as if forwards order(if you see what i mean).

if a < b then

	for i=a,b,1	do 
	table.insert(tbl_count3,i)
	end

	for i =1, #tbl_count3,1 do
    	value = tbl_count3 [ i ]
    	console(String(i .. ": " .. value))
	end

elseif a > b then 

	for i=a,b,-1	do 
	table.insert(tbl_count3,i)
	end
	
	for i =1, #tbl_count3,1 do	
--not this--[ for i = #tbl_count3,1, -1 do ]--
	value = tbl_count3 [ i ]
	console(String(i .. ": " .. value))
	end
end

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[human fly]

alternatively 🙂

if a < b then c =1
elseif a > b then c= -1
end

for i=a,b,c	do 
table.insert(tbl_count3,i)
end

for i =1, #tbl_count3,1 do
value = tbl_count3 [ i ]
console(String(i .. ": " .. value))
end

[human fly]

… in which case… c is a multiplier… of sorts.
if you multiply a number by -1, it’s an inverter.
i just tried c= -2 and it goes back 10,8,6,4,2

mm..? don’t know yet what that could be good for.
wondering atm if a pattern could be substituted there,
ie: a series of numbers that it would follow.
ie: if these were pitches, obtained from _G [ “semi”..i ]
and could be forced to a pattern of intervals… 🙂 :-p
just a thought atm.

[human fly]

quick post/update on this – getting somewhere with it,
but i’ve got a(nother) mental block on how to get a
table with _G [ ] *if it is already defined/written*

before, i was writing tables on the fly; now i’m declaring
lists/arrays on startup.

i think i have correctly/semi-correctly given the intervals
for 29 chords and scales, in a function containing tables/arrays
-‘fields’ according to prior error messages, when it couldn’t
find any, but i’m now forcing it to find/call at least one field
filled with zeros, and it isn’t crashing.

i now need to find tables called “tbl_chd”..i and their contents.
atm i’ve just called these arrays to display them on a label/display.
the rest is just a demo of where i’ve got to so far.

*the idea of this, vaguely, is to return values within start/end
range that are also within the array. it’s a kind of Venn diagram
thing. (and now i’m off to crack on with it, see if i can figure
it out)

best to see panel > list table v08

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[dnaldoog]

human fly wrote:

quick post/update on this – getting somewhere with it,
but i’ve got a(nother) mental block on how to get a
table with _G [ ] *if it is already defined/written

If a variable is pre-defined you don’t need _G[].

[human fly]

ok, so, if i’m doing this, – and in every case, it has to return
0,0,0,0 – i want to replace that line (2) with the table in it, so
that it finds the actual table, for 0-29. (‘chords’ is a combo list,
each value represents one of the tables)

function showChord()

	for x=0,29 do 
	_G["tbl_chd"..x]={0,0,0,0} 
	end

	x = panel:getModulatorByName("chords"):getValue()
	console(String("x : "..x))

	for i =1, #(_G["tbl_chd"..x]),1 do
    value = _G["tbl_chd"..x] [ i ]
    console(String(i .. ": " .. value))
	end

	chordConcat = table.concat((_G["tbl_chd"..x]), " ")
	console(String(chordConcat))
	panel:getComponent("display2"):setPropertyString("uiLabelText",""..chordConcat)
end

[dnaldoog]

function showChord()
	local x = panel:getModulatorByName("chords"):getValue()+1
    local chordConcat = table.concat(_G["tbl_chd"..x], " ")
panel:getComponent("display2"):setPropertyString("uiLabelText",chordConcat)
end

Is this what you’re after HF? Also the table definitions are hidden in function tables()

--function tables()
--major
	tbl_chd1	={0,4,7}		-- 12	--tbl_maj
	tbl_chd2	={0,4,7,9}		-- 12	--tbl_maj6
...

…so they need to be outside that function unless you call the function somewhere.

Regards.

[human fly]

oh, i see, of course – for some reason i was thinking that
the method/function would be run on panel start, and that
therefore they would exist – big ‘duh’…
so if i just have ‘panel loaded’ call that function with
the tables in it, (as i did before with the other panel,
of course…) then they will exist/won’t be nil.
i’ll have another go !

Happy New Year to all out in Ctrlr land, btw.

[human fly]

great: is working now. had to create a few more tables
so numbers matched. calling the tables function at the
top, with +1 offset on the value. tried to do it without
_G [ ], just as (tabl_chd..x), but it wouldn’t have it.

so now it’s:

function showChord()

	tables()

	x = panel:getModulatorByName("chords"):getValue()+1
	--console(String("x : "..x))

	for i =1, #(_G["tbl_chd"..x]),1 do
	value = _G["tbl_chd"..x] [ i ]
	--console(String(i .. ": " .. value))
	end

	local chordConcat = table.concat((_G["tbl_chd"..x]), " ")
	console(String(chordConcat))
	panel:getComponent("display2"):setPropertyString("uiLabelText",""..chordConcat)
end

[human fly]

have to figure out what to do with it now 🙂
good for learning scale and chord intervals..

[dnaldoog]

dnaldoog wrote:

If a variable is predefined you don’t need _G[].

I was slightly wrong there, because if you want to reference that variable by concatenating ‘n’ i.e. "table"..n then you need _G[] as you found out, but if you access a predefined global variable like myValue defined elsewhere (say at start-up), you don’t need _G[myValue] – that’s what I meant.

Yes interesting to see those intervals like that. Next challenge would be to map them to a graphic of a keyboard!

Happy New Year to you!

[Author]

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