--3D-Palette viewer V0.72 (HSL-models added, 3D-World added, Pen-color only cycles thru unique colors, InputBox)
--by Richard 'Dawnbringer' Fhager
-- Mouse: Rotate Cube (Stops animation)
-- Arrow-keys: Move Cube (in 3D world)
-- F1: Start/Stop animation
-- F2: Reset
-- F3: Increase Color-Size
-- F4: Decrease Color-Size
-- F5: (Wip) Cycle thru selected PenColor (Note that only unique colors are displayed)
-- F9: RGB-space model
--F10: HSL-space model
--F11: HSLcubic-space model
-- "+" (Num): Zoom In
-- "-" (Num): Zoom Out
-- Esc: Exit script
-- Drawing updated, rectangle missing, Sep11
run("../libs/dawnbringer_lib.lua")
BRIDIAG_SHOW = 1 -- Show brightness/Grayscale diagonal (1 = on, 0 = off)
ANIM = 1 -- Animation (1 = on, 0 = off)
BOX_DRK = 8 -- Darkest color used for box (0-255)
BOX_BRI = 112 -- Brightest color used for box (0-255)
COLSIZE_BASE = 26 -- Colors base size (value to adjusted by palette-size, with 2 cols maxsize is v / 1.23)
--
OK,RGB,HSL,HSLC,BOX_BRI,COLSIZE_BASE,SET800x600 = inputbox("3D-Palette Viewer Settings",
"1. RGB space [F9]", 1, 0,1,-1,
"2. HSL space [F10]", 0, 0,1,-1,
"3. HSL-cubic space [F11]",0, 0,1,-1,
"Box Brightness (16-255)", BOX_BRI, 16,255,0,
"Col Size (1-100) [F3/F4]", COLSIZE_BASE, 1,100,0,
"Set Screen to 800x600", 1,0,1,0
);
--
if OK then
if SET800x600 == 1 then setpicturesize(800,600); end
SPACE = "rgb"
FORM = "cube"
if HSL == 1 then
SPACE = "hsl"
FORM = "cylinder"
end
if HSLC == 1 then
SPACE = "hsl_cubic"
FORM = "cube"
end
pal = db.fixPalette(db.makePalList(256))
FG = getforecolor()
BG = getbackcolor()
palcol = FG
--
function initColors(space)
for n = 1, #pal, 1 do
c = pal[n];
if space == "rgb" then
cols[n] = {c[1]/128-1,c[2]/128-1,c[3]/128-1,c[4]};
end
if space == "hsl_cubic" then
cols[n] = {}
cols[n][1] = (db.getHUE(c[1],c[2],c[3],0) / 6.0 * 255) / 128 - 1
cols[n][2] = (db.getSaturation(c[1],c[2],c[3])) / 128 - 1
cols[n][3] = (db.getLightness(c[1],c[2],c[3])) / 128 - 1
cols[n][4] = c[4]
end
if space == "hsl" then
cols[n] = {}
hue = db.getHUE(c[1],c[2],c[3],0) / 6.0 * math.pi*2
rad = db.getSaturation(c[1],c[2],c[3]) / 256
cols[n][1] = math.cos(hue) * rad
cols[n][2] = math.sin(hue) * rad
cols[n][3] = (db.getLightness(c[1],c[2],c[3])) / 128 - 1
cols[n][4] = c[4]
end
end
end
--
cols = {} -- Make points of palette colors
colz = {} -- To hold calculated points
initColors(SPACE)
function initPointsAndLines(form,bridiag)
if form == "cube" then
pts = {{-1,1,-1},{1,1,-1},{1,-1,-1},{-1,-1,-1}, -- The box
{-1,1, 1},{1,1, 1},{1,-1, 1},{-1,-1, 1}}
lin = {{1,2},{2,3},{3,4},{4,1},{5,6},{6,7},{7,8},{8,5},{1,5},{2,6},{3,7},{4,8}} -- Box Lines
if bridiag == 1 then lin[13] = {4,6}; end
end
if form == "cylinder" then
p = 28
pts = {}
lin = {}
for n = 1, p, 1 do
x = math.cos(math.pi*2 / p * (n-1))
y = math.sin(math.pi*2 / p * (n-1))
pts[n] = {x,y,-1}
lin[n] = {n,1 + (n%p)}
pts[n + p] = {x,y,1}
lin[n + p] = {n+p,p + 1 + (n%p)}
end
lin[p*2+1] = {1,p+1} -- Red (0 degrees)
lin[p*2+2] = {p+1,p+1+math.ceil(p/2)} -- Lightness end (needs an even # of points to work)
end
end
boxp = {} -- To hold the calculated points
initPointsAndLines(FORM,BRIDIAG_SHOW)
w,h = getpicturesize()
CX,CY = w/2, h/2
function initAndReset()
XANG, YANG, ZANG, ZOOM, COLSIZE_ADJ, XD, YD, WORLD_X, WORLD_Y, ZSELECT = 0,0,0,0,0,0,0,0,0,0
end
initAndReset()
SIZE = math.min(w,h)/4
DIST = 5 -- Distance perspective modifier, ~5 is nominal, more means "less 3D"
CMAXSIZE = math.floor(COLSIZE_BASE / ((#pal)^0.3))
--CMAXSIZE = 8
CMINSIZE = 1 -- Negative values are ok. Color are never smaller than 1 pix
BOX_LINE_DIV = 20 -- Number of colors/segments that a box-line can be divided into (depth)
BOX_DIV_MULT = BOX_LINE_DIV / (math.sqrt(3)*2)
-- Box depth colors
box_div = {}
for n = 0, BOX_LINE_DIV-1, 1 do
c = BOX_DRK + (BOX_BRI / (BOX_LINE_DIV - 1)) * n
--box_div[BOX_LINE_DIV - n] = matchcolor(c,c,c)
box_div[BOX_LINE_DIV - n] = db.getBestPalMatchHYBRID({c,c,c},pal,0.5,true)
end
--BOX_COL = matchcolor(80,80,80)
BKG_COL = matchcolor(0,0,0)
--CUR_COL = matchcolor(112,112,112)
function rotate3D(x,y,z,Xsin,Ysin,Zsin,Xcos,Ycos,Zcos) -- PrecCalced cos&sin for speed
local x1,x2,x3,y1,y2,y3,f,xp,yp
x1 = x
y1 = y * Xcos + z * Xsin
z1 = z * Xcos - y * Xsin
x2 = x1 * Ycos - z1 * Ysin
y2 = y1
z2 = x1 * Ysin + z1 * Ycos
x3 = x2 * Zcos - y2 * Zsin
y3 = x2 * Zsin + y2 * Zcos
z3 = z2
return x3,y3,z3
end
function do3D(x,y,z,zoom,dist,Xsin,Ysin,Zsin,Xcos,Ycos,Zcos) -- PrecCalced cos&sin for speed
local x1,x2,x3,y1,y2,y3,f,xp,yp
x1 = x
y1 = y * Xcos + z * Xsin
z1 = z * Xcos - y * Xsin
x2 = x1 * Ycos - z1 * Ysin
y2 = y1
z2 = x1 * Ysin + z1 * Ycos
x3 = x2 * Zcos - y2 * Zsin
y3 = x2 * Zsin + y2 * Zcos
z3 = z2
f = dist/(z3 + dist + zoom)
xp = x3 * f
yp = y3 * f
return xp,yp,z3
end
function draw3Dline(x1,y1,z1,x2,y2,z2,div,mult,depthlist)
local s,xt,yt,xd,yd,zd,xf,yf
xd = (x2 - x1) / div
yd = (y2 - y1) / div
zd = (z2 - z1) / div
xf,yf = x1,y1
for s = 1, div, 1 do
-- Depth assumes a 1-Box (z ranges from -sq(3) to sq(3))
depth = math.floor(1 + (z1+zd*s + 1.732) * mult)
xt = x1 + xd*s -- + math.random()*8
yt = y1 + yd*s -- + math.random()*8
c = depthlist[depth]
if c == null then c = 1; end -- Something isn't perfect, error is super rare but this controls it
--db.line(xf,yf,xt,yt,c)
drawline(xf,yf,xt,yt,c)
xf = xt
yf = yt
end
end
function killinertia()
XD = 0
YD = 0
end
-- If using 1-box, z is -sq(3) to sq(3)
minz = math.sqrt(3)
totz = minz * 2
maxrad = CMAXSIZE - CMINSIZE
--q = 0
--delay = 4
--move = 0.03
while 1 < 2 do
-- Time-for-space-wiggle...or somekindof attempt
--WORLD_X = -move
--q = (q + 1) % delay
--if q < delay/2 then WORLD_X = move; end
clearpicture(BKG_COL)
Xsin = math.sin(XANG); Xcos = math.cos(XANG)
Ysin = math.sin(YANG); Ycos = math.cos(YANG)
Zsin = math.sin(ZANG); Zcos = math.cos(ZANG)
-- Rotate Box points
for n = 1, #pts, 1 do
p = pts[n]
x,y,z = p[1],p[2],p[3]
XP,YP,zp = rotate3D(x,y,z,Xsin,Ysin,Zsin,Xcos,Ycos,Zcos)
boxp[n] = {XP,YP,zp}
end
-- Rotate Colors in palette
for n = 1, #cols, 1 do
p = cols[n]
x,y,z,c = p[1],p[2],p[3],p[4]
XP,YP,zp = rotate3D(x,y,z,Xsin,Ysin,Zsin,Xcos,Ycos,Zcos)
colz[n] = {XP,YP,zp,c}
end
------------------------------------
-- Control world
------------------------------------
-- Calculate points anew
-- Worldize Box points
for n = 1, #boxp, 1 do
s = SIZE
v = boxp[n]
x = v[1] + WORLD_X
y = v[2] + WORLD_Y
z = v[3]
f = DIST/(z + DIST + ZOOM)
XP = CX + x * f * s
YP = CY + y * f * s
boxp[n] = {XP,YP,z}
end
-- Worldize Colors in palette
for n = 1, #colz, 1 do
s = SIZE
v = colz[n]
x = v[1] + WORLD_X
y = v[2] + WORLD_Y
z = v[3]
c = v[4]
f = DIST/(z + DIST + ZOOM)
XP = CX + x * f * s
YP = CY + y * f * s
colz[n] = {XP,YP,z,c}
end
-------------------------------------
-------------------------------------
-- Brightness Diagonal
--if BRIDIAG_SHOW == 1 then
-- p1 = boxp[4]
-- p2 = boxp[6]
-- x1,y1,z1 = p1[1],p1[2],p1[3]
-- x2,y2,z2 = p2[1],p2[2],p2[3]
-- draw3Dline(x1,y1,z1,x2,y2,z2,BOX_LINE_DIV,BOX_DIV_MULT,box_div)
--end
--c1 = math.min(FG,BG)
--c2 = math.max(FG,BG)
--p = colz[26]
--XP1,YP1,zp1,c1 = p[1],p[2],p[3],p[4]
--for n = #colz, 1, -1 do
-- p = colz[27]
-- XP2,YP2,zp2,c2 = p[1],p[2],p[3],p[4]
-- drawline(XP1,YP1,XP2,YP2,c1)
--end
-- sort on z
db.sorti(colz,3)
-- Draw colors
for n = #colz, 1, -1 do
p = colz[n]
XP,YP,zp,c = p[1],p[2],p[3],p[4]
radius = CMINSIZE + maxrad - (zp+minz) / totz * maxrad
dorad = math.floor(radius - ZOOM*2 + COLSIZE_ADJ)
if dorad >= 1 then
--db.drawCircle(XP,YP,dorad,c)
drawdisk(XP,YP,dorad,c)
--db.drawRectangle(XP,YP,dorad,dorad,c)
else putpicturepixel(XP,YP,c)
end
if c == FG or c == BG then
sz = math.max(3,dorad + 3)
if c == BKG_COL then v = (c+128) % 255; c = matchcolor(v,v,v); end
db.drawRectangleLine(XP-sz,YP-sz,sz*2,sz*2,c)
end
end -- colz
-- Draw box
for n = 1, #lin, 1 do
l = lin[n]
p1 = boxp[l[1]]
p2 = boxp[l[2]]
x1,y1,z1 = p1[1],p1[2],p1[3]
x2,y2,z2 = p2[1],p2[2],p2[3]
draw3Dline(x1,y1,z1,x2,y2,z2,BOX_LINE_DIV,BOX_DIV_MULT,box_div)
end -- eof box
--updatescreen(); if (waitbreak(0.00)==1) then return; end
repeat
old_key = key;
old_mouse_x = mouse_x;
old_mouse_y = mouse_y;
old_mouse_b = mouse_b;
updatescreen()
moved, key, mouse_x, mouse_y, mouse_b = waitinput(0)
if mouse_b == 1 then ANIM = 0; end
if (key==27) then
return;
end
if (key==282) then ANIM = (ANIM+1) % 2; end -- F1: Stop/Start Animation
if (key==283) then initAndReset(); end -- F2: Reset all values
if (key==284) then COLSIZE_ADJ = COLSIZE_ADJ + 0.5; end -- F3
if (key==285) then COLSIZE_ADJ = COLSIZE_ADJ - 0.5; end -- F4
--messagebox(key)
if (key==286) then
--FG = (FG + 1) % 255;
palcol = (palcol + 1) % #pal
FG = pal[palcol+1][4]
setforecolor(FG);
setcolor(0,getcolor(0)) -- Force update of palette until setforecolor() is fixed
end -- F5
if (key==290) then -- F9
initColors("rgb")
initPointsAndLines("cube",BRIDIAG_SHOW)
end
if (key==291) then -- F10
initColors("hsl")
initPointsAndLines("cylinder", 0) -- Bridiag won't show even if turned on, it's only for cube
end
if (key==292) then -- F11
initColors("hsl_cubic")
initPointsAndLines("cube",BRIDIAG_SHOW)
end
if (key==269) then ZOOM = ZOOM + 0.1; end
if (key==270) then ZOOM = ZOOM - 0.1; end
if (key==32) then
ZSELECT = (ZSELECT + math.pi/2) % (2*math.pi);
--YANG = ((YANG - math.pi/2) % (math.pi*2));
--XANG = ((XANG + math.pi/2) % (math.pi*2));
YANG = ((YANG + math.pi/2) % (math.pi*2));
XANG = ((XANG + math.pi/2) % (math.pi*2));
YANG = ((YANG - math.pi/2) % (math.pi*2));
end -- Rotate Z 90 Degrees
SPEED = math.pi / 100
if (key==273) then WORLD_Y = WORLD_Y - 0.05; killinertia(); end
if (key==274) then WORLD_Y = WORLD_Y + 0.05; killinertia(); end
if (key==276) then WORLD_X = WORLD_X - 0.05; killinertia(); end
if (key==275) then WORLD_X = WORLD_X + 0.05; killinertia(); end
until ((mouse_b == 1 and (old_mouse_x~=mouse_x or old_mouse_y~=mouse_y)) or key~=0 or ANIM==1 or math.abs(XD)>0.01 or math.abs(YD)>0.01);
if ANIM == 0 then
if (mouse_b==1 and (old_mouse_x~=mouse_x or old_mouse_y~=mouse_y)) then -- Inertia
XD = (mouse_y - old_mouse_y)*0.005
YD = (mouse_x - old_mouse_x)*0.005
else
XD = XD*0.92
YD = YD*0.92
end
XANG = ((XANG - XD) % (math.pi*2));
YANG = ((YANG + YD) % (math.pi*2));
ZANG = ZSELECT
end
if ANIM == 1 then
XANG = (XANG + math.pi/300) % (math.pi*2)
YANG = (YANG + math.pi/500) % (math.pi*2)
ZANG = (ZANG + math.pi/1000) % (math.pi*2)
end
--XANG = ((CY-mouse_y) / 200 % (math.pi*2));
--YANG = ((mouse_x - CX) / 200 % (math.pi*2));
--ZANG = 0
statusmessage("x"..math.floor(XANG*57.3).."° y"..math.floor(YANG*57.3).."° z"..math.floor(ZANG*57.3).."° Zm: "..math.floor(-ZOOM*10).." ")
end
end -- OK