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boundary and random ops for new drift behaviors
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@echophon
echophon committed Sep 13, 2020
1 parent a9a4b19 commit 44b8d58
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14 changes: 10 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3,12 +3,18 @@ motes of dust float through space

a script for monome norns

KEY2 randomizes
KEY1 shift

KEY2 cycles param focus

KEY3 cycles focus

ENC1 transpose
ENC1 transpose all

ENC2 param 1

ENC3 param 2

ENC2 motivate x-axis
shift + KEY2 randomize all

ENC3 motivate y-axis
shift + KEY3 randomize focus
280 changes: 220 additions & 60 deletions drift.lua
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Original file line number Diff line number Diff line change
@@ -1,12 +1,15 @@
-- drift - dust motes in flight
--
-- v0.1.0 @echophon
-- v0.3.0 @echophon
--
-- KEY2 randomizes
-- KEY1 shift
-- KEY2 cycles param focus
-- KEY3 cycles focus
-- ENC1 transpose
-- ENC2 motivate x-axis
-- ENC3 motivate y-axis
-- shift + KEY2 randomizes all
-- shift + KEY3 randomizes focus


engine.name = 'PolyPerc'
Expand All @@ -15,11 +18,22 @@ local viewport = { width = 128, height = 64 }
local frame = 0

local txt = 'hello'
local drift_amount = 4
local drift_max = 40
local connect_distance = 24
local focus = 1
local param_focus = 1
local param_count = 5
local param_txt = {"move", "pos", "connect distance", "boundary", "random"}
local shift = false
local dot_count = 8
local dots = {{x=0,y=0,move_x=0,move_y=0,dirty={0,0,0,0,0,0,0,0}}
local boundary_ops = 1
local boundary_count = 4
local boundary_txt = {"wrap", "wrap half", "bounce", "random"}
local random_ops = 1
local random_count = 7
local random_txt = {"default", "xpos", "ypos", "xypos", "xmove", "ymove", "xymove"}

local dots= {{x=0,y=0,move_x=0,move_y=0,dirty={0,0,0,0,0,0,0,0}}
,{x=0,y=0,move_x=0,move_y=0,dirty={0,0,0,0,0,0,0,0}}
,{x=0,y=0,move_x=0,move_y=0,dirty={0,0,0,0,0,0,0,0}}
,{x=0,y=0,move_x=0,move_y=0,dirty={0,0,0,0,0,0,0,0}}
Expand All @@ -38,112 +52,198 @@ params:set_action("useMidi", function(x) useMidi = x end)
params:add_number("channel","channel",1,16,1)
params:set_action("channel", function(x) channel = x end)

params:add_number("drift_amount","drift_amount",1,20,12)
params:set_action("drift_amount", function(x) drift_amount = x end)
params:add_number("drift_max","drift_max",1,40,12)
params:set_action("drift_max", function(x) drift_max = x end)

params:add_number("connect_distance","connect_distance",4,48,24)
params:set_action("connect_distance", function(x) connect_distance = x end)

params:add_option("boundary_ops","boundary_ops",{"wrap", "wrap half", "bounce", "random"},1)
params:set_action("boundary_ops", function(x) boundary_ops = x end)

params:add_option("random_ops","random_ops",{"default", "xpos", "ypos", "xypos", "xmove", "ymove", "xymove"},1)
params:set_action("random_ops", function(x) random_ops = x end)

params:add_trigger("randomize", "randomize")
params:set_action("randomize", function(x) randomize_dots() end)

params:add_trigger("reset", "reset")
params:set_action("reset", function(x) reset() end)

function init()
randomize_dots()
end

function key(id,state)
if id == 2 and state == 1 then
if id == 1 then
shift = not shift
elseif id == 2 and state == 1 and shift == true then
randomize_dots()
-- stop_dots()
elseif id == 3 and state == 1 and shift == true then
randomize_dot()
elseif id == 3 and state == 1 then
focus = 1+(focus%dot_count)
elseif id == 2 and state == 1 then
param_focus = 1+(param_focus%param_count)
end
end

function enc(id,delta)
if id == 2 then
dots[focus].move_x = tonumber(string.format("%.2f", util.clamp(dots[focus].move_x + (delta*0.01),-drift_amount,drift_amount)))
elseif id == 3 then
dots[focus].move_y = tonumber(string.format("%.2f", util.clamp(dots[focus].move_y + (delta*0.01),-drift_amount,drift_amount)))
if id == 2 and param_focus == 1 then
dots[focus].move_x = tonumber(string.format("%.2f", util.clamp(dots[focus].move_x + (delta*0.01),-drift_max,drift_max)))
elseif id == 3 and param_focus == 1 then
dots[focus].move_y = tonumber(string.format("%.2f", util.clamp(dots[focus].move_y + (delta*0.01),-drift_max,drift_max)))
elseif id == 2 and param_focus == 2 then
dots[focus].x = tonumber(string.format("%.1f", util.clamp(dots[focus].x + (delta*0.1),0,viewport.width)))
elseif id == 3 and param_focus == 2 then
dots[focus].y = tonumber(string.format("%.1f", util.clamp(dots[focus].y + (delta*0.1),0,viewport.height)))
elseif id == 2 and param_focus == 3 then
connect_distance = tonumber(string.format("%.1f", util.clamp(connect_distance + (delta*0.1),1,48)))
elseif id == 2 and param_focus == 4 then
boundary_ops = util.clamp(boundary_ops + (delta*1),1,4)
elseif id == 2 and param_focus == 5 then
random_ops = util.clamp(random_ops + (delta*1),1,7)

elseif id == 1 then
for i=1,dot_count do
dots[i].x = tonumber(string.format("%.0f", util.clamp(dots[i].x + (delta*1),-1,viewport.width)))
-- dots[i].x = tonumber(string.format("%.0f", util.clamp(dots[i].x + (delta*1),-1,viewport.width)))
dots[i].x = tonumber(string.format("%.0f", util.clamp(dots[i].x + (delta*1),-20,viewport.width)))
end
end
txt = dots[focus].move_x .. "," .. dots[focus].move_y
end

function randomize_dots()
for i=1,dot_count do
dots[i].x = math.random(viewport.width)
dots[i].y = math.random(viewport.height)
-- dots[i].move_x = (0.5 - math.random()) * drift_amount
dots[i].move_x = 0
dots[i].move_y = (1 - (math.random(100)* 0.01) ) * drift_amount
end
function drift_calc()
return (0.5 - (math.random(100)* 0.01) ) * drift_max
end

function stop_dots()
function reset()
for i=1,dot_count do
-- dots[i].x = viewport.width/2
-- dots[i].y = viewport.height/2
dots[i].move_x = 0
dots[i].move_y = 0
dots[i].y = viewport.height/2
dots[i].x = ((viewport.width/8)*i)-8
end
end

function randomize_dot()
if random_ops == 1 then
dots[focus].x = math.random(viewport.width)
dots[focus].y = math.random(viewport.height)
dots[focus].move_x = 0
dots[focus].move_y = drift_calc()
elseif random_ops == 2 then
dots[focus].x = math.random(viewport.width)
elseif random_ops == 3 then
dots[focus].y = math.random(viewport.height)
elseif random_ops == 4 then
dots[focus].x = math.random(viewport.width)
dots[focus].y = math.random(viewport.height)
elseif random_ops == 5 then
dots[focus].move_x = drift_calc()
elseif random_ops == 6 then
dots[focus].move_y = drift_calc()
elseif random_ops == 7 then
dots[focus].move_x = drift_calc()
dots[focus].move_y = drift_calc()
end
end

function randomize_dots()
for i=1,dot_count do
if random_ops == 1 then
dots[i].x = math.random(viewport.width)
dots[i].y = math.random(viewport.height)
dots[i].move_x = 0
dots[i].move_y = drift_calc()
elseif random_ops == 2 then
dots[i].x = math.random(viewport.width)
elseif random_ops == 3 then
dots[i].y = math.random(viewport.height)
elseif random_ops == 4 then
dots[i].x = math.random(viewport.width)
dots[i].y = math.random(viewport.height)
elseif random_ops == 5 then
dots[i].move_x = drift_calc()
elseif random_ops == 6 then
dots[i].move_y = drift_calc()
elseif random_ops == 7 then
dots[i].move_x = drift_calc()
dots[i].move_y = drift_calc()
end
end
end

function draw_dots()
function move_dots()
for i=1, dot_count do
if i == focus then
draw_circle(dots[i].x, dots[i].y,2,13)
else
draw_circle(dots[i].x, dots[i].y,1,5)
end
dots[i].x = (dots[i].x + dots[i].move_x)
dots[i].y = (dots[i].y + dots[i].move_y)
end
end

function draw_connections()

function move_dots_wrap()
for i=1, dot_count do
for j=1, dot_count do
if distance(dots[i].x, dots[i].y, dots[j].x, dots[j].y) < connect_distance then
draw_line(dots[i].x, dots[i].y, dots[j].x, dots[j].y, 13)
end
dots[i].x = dots[i].x % viewport.width
dots[i].y = dots[i].y % viewport.height
if dots[i].x < 0 then
dots[i].x = viewport.width
end
end
if dots[i].y < 0 then
dots[i].y = viewport.height
end
end
end

function draw_circle(x, y, r, l)
screen.level(l)
screen.circle(x,y,r)
screen.stroke()
function move_dots_wrap_perc(n,m)
for i=1, dot_count do
if dots[i].x > viewport.width then
dots[i].x = ((viewport.width*n) + dots[i].move_x)
end
if dots[i].y > viewport.height then
dots[i].y = ((viewport.height*m) + dots[i].move_y)
end
if dots[i].x < 0 then
dots[i].x = ((viewport.width*n) + dots[i].move_x)
end
if dots[i].y < 0 then
dots[i].y = ((viewport.height*m) + dots[i].move_y)
end
end
end

function draw_line(x1, y1, x2, y2, l)
screen.level(l)
screen.move(x1,y1)
screen.line(x2,y2)
screen.stroke()
function move_dots_bounce()
for i=1, dot_count do
if dots[i].x < 0 then
dots[i].x = -dots[i].x
dots[i].move_x = -dots[i].move_x
end
if dots[i].x > viewport.width then
dots[i].x = viewport.width + (viewport.width - dots[i].x)
dots[i].move_x = -dots[i].move_x
end
if dots[i].y < 0 then
dots[i].y = -dots[i].y
dots[i].move_y = -dots[i].move_y
end
if dots[i].y > viewport.height then
dots[i].y = viewport.height + (viewport.height - dots[i].y)
dots[i].move_y = -dots[i].move_y
end
end
end

function draw_text()
screen.level(1)
screen.move(2,6)
screen.text(txt)
screen.stroke()
end

function move_dots()
function move_dots_random()
for i=1, dot_count do
dots[i].x = (dots[i].x + dots[i].move_x) % viewport.width
dots[i].y = (dots[i].y + dots[i].move_y) % viewport.height
if dots[i].x < 0 then
dots[i].x = viewport.width
if dots[i].x < 0 or dots[i].x > viewport.width then
dots[i].x = math.random(0,viewport.width)
end
if dots[i].y < 0 then
dots[i].y = viewport.height
if dots[i].y < 0 or dots[i].y > viewport.height then
dots[i].y = math.random(0,viewport.height)
end
end
end


function distance( x1, y1, x2, y2 )
return math.sqrt( (x2-x1)^2 + (y2-y1)^2 )
end
Expand Down Expand Up @@ -184,6 +284,56 @@ function play_midi()
end
end

function draw_dots()
for i=1, dot_count do
if i == focus then
draw_circle(dots[i].x, dots[i].y,2,13)
else
draw_circle(dots[i].x, dots[i].y,1,5)
end
end
end

function draw_connections()
for i=1, dot_count do
for j=1, dot_count do
if distance(dots[i].x, dots[i].y, dots[j].x, dots[j].y) < connect_distance then
draw_line(dots[i].x, dots[i].y, dots[j].x, dots[j].y, 13)
end
end
end
end

function draw_circle(x, y, r, l)
screen.level(l)
screen.circle(x,y,r)
screen.stroke()
end

function draw_line(x1, y1, x2, y2, l)
screen.level(l)
screen.move(x1,y1)
screen.line(x2,y2)
screen.stroke()
end

function draw_text()
if param_focus == 1 then
txt = param_txt[param_focus] .. focus .. ":" .. string.format("%.2f",dots[focus].move_x) .. "," .. string.format("%.2f",dots[focus].move_y)
elseif param_focus == 2 then
txt = param_txt[param_focus] .. focus .. ":" .. string.format("%.2f",dots[focus].x) .. "," .. string.format("%.2f",dots[focus].y)
elseif param_focus == 3 then
txt = param_txt[param_focus] .. ":" .. string.format("%.1f",connect_distance)
elseif param_focus == 4 then
txt = param_txt[param_focus] .. ":" .. boundary_txt[boundary_ops]
elseif param_focus == 5 then
txt = param_txt[param_focus] .. ":" .. random_txt[random_ops]
end
screen.level(1)
screen.move(2,6)
screen.text(txt)
screen.stroke()
end

function redraw()
screen.clear()
Expand All @@ -198,6 +348,16 @@ re.time = 0.1
re.event = function()
frame = frame + 1
move_dots()
if boundary_ops == 1 then
move_dots_wrap()
elseif boundary_ops == 2 then
move_dots_wrap_perc(0.5,0.5)
elseif boundary_ops == 3 then
move_dots_bounce()
elseif boundary_ops == 4 then
move_dots_random()
end

if useMidi == 1 then
play_midi()
else
Expand Down

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