Top dweets by u/magna

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #Food

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magna

function u(t) {

R=540,Y=R-t*99
for(s=0,d=-1;s<=R*R-Y*Y;s+=d+=2);
X=d/2
x.fillRect(960-X,R+Y,X*2,1)

Nov 2 2021 10:36 PM UTC

}// 82/140

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#circlechallenge No trig, no direct square root: Just using the Pythagorean theorem + the fact that sums of odd numbers give perfect squares

u/Xen

very clever sir

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magna

remix of d/10830 by u/magna

function u(t) {

eval(unescape(escape`挮睩摴栽㤶〻景爨樽㘰㭪ⴭ㬩景爨椽㈴〻椭ⴻ砮晩汬剥捴⡩⨴ⱪ⨹ⰴⰹ⤩昽椫琪㘰Ɱ㵔⠰簨樫晞昭権⼨琯㈫㘩⤬砮晩汬却祬攽恨獬⠤笱㈰⩩紬㤹┬⑻⠲⭩┳⤪渪㄰┵ぽ╠`.replace(/u(..)/g,"$1%")))

Nov 5 2018 1:41 AM UTC

}// 122/140

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Original patterns and RGB modulation by u/tomxor, CRT by me, compressed using d/9207

u/tomxor

Yeah! :D
u/tomxor

Oh now you got me hooked, i'm doin more crt

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magna

remix of d/4983 by u/nickd3000

function u(t) {

k=c=>128*(.5+C(6.28*(i/200+t/c)));for(i=220;i--;x.fillRect(9*i,0,9,1e3))x.fillStyle=R(k(-9),k(7),k(5))

Dec 31 2017 4:50 PM UTC

}// 102/140

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magna

remix of d/2425 by u/cantelope

function u(t) {

t||(w=c.width=568)
with(x)onmousemove=e=>lineTo(C=e.pageX,S=e.pageY),fillStyle=R(S,C,S,.2),fillRect(0,0,w,w),beginPath(stroke()),moveTo(C,S)

Apr 6 2017 5:04 AM UTC

}// 140/140

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Fixed the "X/Y is not defined" errors by hijacking S and C

u/brahimtim

hhjgj
u/cantelope

@magna, brilliant! :D
u/cantelope

as promised, 3 gold stars... https://www.dwitter.net/d/2434
u/magna

Thanks! :)
u/iverjo

#interactive

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magna

function u(t) {

x.fillRect(960+960*C(t*3)-1,540+540*S(t*5)-1,2,2);x.filter='sepia(100%) invert(100%)';x.drawImage(c,10,10,1900,1060,0,0,1920,1080);

Mar 17 2017 8:18 PM UTC

}// 131/140

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#waitforit

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magna

function u(t) {

c.outerHTML='<marquee style=aspect-ratio:16/9 direction=down behavior=alternate><marquee behavior=alternate><i><h1>DVD'

Jun 16 2026 11:17 PM UTC

}// 119/140

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#dvd https://bsky.app/profile/zachleat.com/post/3…

u/lewdev

That's awesome!
u/joeytwiddle

#css
u/magna

#html

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magna

remix of d/32487 by u/rodrigo.siqueira

function u(t) {

for(X=Y=i=5e4;i--;x.fillRect(Q,W,.3,t&Q&W&3))Y=(r=t*i*Y&8)+(Y-X)/2+X/7,X+=S(Y/2)*(Y+3.14)/1.3,Q=Y*145+1270,W=X*95-1000

Sep 25 2024 1:02 AM UTC

}// 118/140

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On textured canvas

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magna

remix of d/32412 by u/lewdev

function u(t) {

eval(unescape(escape`󮌮󩭯󫭴󟜧󜽥󫜢󙼻󭜽󭍼󜌻󦌽󚍵󙬳󚜪󝌸󜌻󦜽󚍵󟬾󜬩󚬱󝜴󞽦󫽲󚍩󟜴󝼰󞽩󛜭󞽩󟽸󛭦󪝬󫍒󩝣󭌨󦌫󪜬󦜫󝼷󛝍󨝴󪍛󩭝󚍩󛼵󞜭󝌩󚬶󝌥󝬴󛌱󛌱󚜺󮌮󩭩󫍬󥍥󮍴󚍦󛍘󛍙󚼸󝼩󚝦󟝒󩝦󫍥󨽴󛭯󭽮󢽥󮝳󚍍󟝍󨝴󪌩󛭦󪝬󭍥󬬨󬌽󟭍󦽰󧜮󫍥󫭧󭍨󟜽󜜩󒭛󭜥󜬸󧜻`.replace(/u../g,'')))

Sep 13 2024 3:36 AM UTC

}// 137/140

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All unary Math functions

u/magna

(There's something off with the x/y normalization)
u/lewdev

Reflect.ownKeys was what I was looking for because Object.keys didn't work!
u/magna

Kudos ChatGPT for showing me that
u/danny@hille.dk

dang, this old dog just learned a new trick today, - thanks!

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magna

remix of d/31961 by u/KilledByAPixel

function u(t) {

for(i=2e3;i--;)x.fillRect(i,R=t*120,C(T=t/3-((2e5-(i-960)**2-(R-540)**2)**.5|0)/600),S(T*t)*2)

Jun 7 2024 4:00 AM UTC

}// 94/140

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u/KilledByAPixel

80s vibes

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magna

remix of d/28530 by u/magna

function u(t) {

eval(unescape(escape`󭍼󯌨󨼮󭽩󩍴󪌽󜜲󞌩󞽦󫽲󚍩󟜳󩜳󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󦌬󦜬󜜬󛬱󚜩󢜽󪜪󜜹󚽦󬭡󫝥󙜱󞜬󦌽󢜦󜜲󝼬󦜽󢜾󟬸󛍸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󙍻󣝡󭍨󦽴󙬲󟼧󪍹󬍯󭌧󞬧󨝴󨝮󜬧󧜨󦌭󝬴󛝃󚍴󛼳󚜪󝬴󛍙󛜳󝬭󚍓󚍴󛼲󚜪󜼶󚜩󚭓󚍴󛼵󚜪󞜹󙜱󞌰󯜠󞜹󙜵󜌥󨌻`.replace(/u../g,'')))

Sep 21 2023 4:37 AM UTC

}// 135/140

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Latent dreams

u/Xen

amazing patterns!

dwitter.net | magna (4090)