red
Type a color. The screen fills with it.
red, circle
Commas chain commands. Set a color, then draw.
wipe black, ink lime, box 40 40 80
Wipe the screen, pick a color, draw a shape — all in one line.
ink (? red blue lime), circle (wiggle w) (wiggle h) 20
Randomness and motion are built in. Every frame picks a new color and wiggles.
(repeat 50 i (ink (? red blue lime)) (circle (wiggle w) (wiggle h) 8))
Loops make patterns. Fifty random circles in three lines.
wipe navy, ink rainbow, 1s (blur 1), circle 80 60 (* (sin f) 30)
Time, blur, and math — code runs every frame so things move on their own.
118 functions to explore. Type something and press play.
Loading function popularity data...
; Comments start with semicolon
(function-name arg1 arg2 ...)
; Shorthand comma syntax
purple, ink, line, blur 5
; Variables & functions
(def x 10)
(later star x y (ink "yellow") (circle x y 20))
(star 100 100)
; Loops
(repeat 50 i (circle (wiggle w) (wiggle h) 10))Shorthand: w = width, h = height, f = frame. ? = random, ... = cycle values.
Identifiers: no dashes (parsed as subtraction). Use my_var not my-var.
| Function | Usage | Description |
|---|---|---|
wipe | (wipe color) | Clear screen |
ink | (ink color [alpha]) | Set draw color |
line | (line x1 y1 x2 y2) or (line) | Line (random if no args) |
box | (box x y w h) | Rectangle |
circle | (circle x y radius) | Circle |
tri | (tri x1 y1 x2 y2 x3 y3) | Triangle |
plot | (plot x y) | Single pixel |
flood | (flood x y) | Flood fill |
shape | (shape pts... "fill") | Polygon |
fill/outline | (fill) / (outline) | Shape mode |
Named: red, blue, lime, navy, etc. (all CSS colors, no quotes needed)
RGB: (ink 255 0 0) — With alpha: (ink red 128)
Special: rainbow, zebra, erase
Gradients: fade:red-blue-black, fade:zebra-rainbow-zebra:direction
| Function | Usage | Description |
|---|---|---|
+ - * / % | (+ a b c...) | Arithmetic |
sin cos tan | (sin x) | Trigonometry |
random / ? | (? a b c) | Random pick |
wiggle | (wiggle amount) | Random ±amount/2 |
min max abs | (min a b) | Comparison |
sqrt pow | (sqrt x) | Power/root |
floor ceil round | (floor x) | Rounding |
width/w, height/h — canvas size.
frame/f — frame count.
clock — UTC time. pi — π.
(fps rate) — set frame rate.
| Function | Usage | Description |
|---|---|---|
def | (def x 10) | Variable |
later | (later fn params body) | Define function |
if | (if cond then else) | Conditional |
once | (once expr) | Run once only |
repeat/bunch | (repeat n i expr) | Loop |
?/choose | (? a b c) | Random pick |
... | (... a b c) | Cycle over time |
now | (now var value) | Update variable |
1s ; after 1 second
2s... ; cycle every 2 seconds
0.5s! ; once after 0.5s
0.1s ; every 0.1 seconds (fast)
(0.25s (wipe (... red yellow blue))) ; cycle bg color
(1s (blur 1)) ; periodic blur| Function | Usage | Description |
|---|---|---|
scroll | (scroll dx dy) | Translate with wrapping |
zoom | (zoom factor) | Scale from center |
spin | (spin angle) | Rotate |
suck | (suck strength) | Vortex displacement |
blur | (blur amount) | Gaussian blur |
contrast | (contrast amount) | Adjust contrast |
sort | (sort) | Sort pixels by brightness |
bake | (bake) | Commit to background |
pan/unpan | (pan dx dy) | Camera movement |
| Function | Usage | Description |
|---|---|---|
paste | (paste url x y [scale]) | Paste image (URLs can be unquoted) |
stamp | (stamp url x y) | Paste centered |
write | (write text x y) | Draw text |
tape | (tape !CODE x y w h) | Embed video |
mic, amplitude, melody, overtone, noise, speaker
cube, form, trans (move, scale, spin), cubespin, cubepos, cubescale, camrot, camspin
($codeId) ; execute another piece
($codeId x y w h alpha) ; embed with position/size/alpha
(jump "piece") ; navigate to piece
(jump $id) ; navigate to cached pieceLoading top hits...