Dweets awesomed by u/zanella

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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katkip

remix of d/10247 by u/katkip

function u(t) {

c.width^=0;x.translate(960,540);for(i=0;i++<90;)x.lineTo(0,i*15),
x.rotate(i/6),x.fill(),x.globalCompositeOperation='xor'

Oct 5 2018 9:55 AM UTC

}// 121/140

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#abstract

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katkip

function u(t) {

c.width^=0;x.translate(960,540);for(i=-10;i++<10;)
x.lineTo(0,i*40),
x.rotate(C(t+i)),
x.lineWidth=20,
x.stroke()

Oct 5 2018 9:47 AM UTC

}// 113/140

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#abstract thing.

u/joeytwiddle

Looks like half of Batman's batsignal
u/DataMeta

Funky organism
u/BirdsTweetCodersDweet

Looks like a wrench to me, inside some sort of half-hexagon...

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zanella

remix of d/10234 by u/Purpzie

function u(t) {

c.width|=0
r=[0,1];for(i=2;i<1e3;i++)r.push(r[i-1]+r[i-2])
x.font='99px"'
x.fillText(r.join(' '),-200*t,500)

Oct 4 2018 5:41 PM UTC

}// 108/140

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Bring back the marquee tag!! #90s

u/donbright

i really like this one for some reason i cant quite put my finger on

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katkip

remix of d/10203 by u/katkip

function u(t) {

c.style.background='#0f0';c.width*=1;for(a=1e3|0;a--;x.lineTo(C(a+b*b+t)*S(b+a*a+t)*960+960,S(b)*540+540,i=b/40-5,i))b=4*a*a;x.fill()

Oct 4 2018 2:12 PM UTC

}// 133/140

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u/firegodjr

#plasma

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Purpzie

remix of d/10210 by u/Purpzie

function u(t) {

r=[0,1];for(i=2;i<1e3;i++)r.push(r[i-1]+r[i-2])
x.font='99px"'
x.fillText(r.join(' '),0,500)

Oct 3 2018 8:31 PM UTC

}// 92/140

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Fibonacci sequence! Only 46 characters are actually used to generate it, feel free to modify it or use it in your own dweets.

u/donbright

awesome

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yonatan

remix of d/10211 by u/BalintCsala

function u(t) {

for(k=i=1e3;z=i--/6;x.fillRect(k+S(m=(k*j&-b)**4)*r-z,z+C(m)*r,s=5e3/z,s))b=i%9>0,j=(i/k+t)%1,r=8e3/z+b*k/z,x.fillStyle=R(a=S(j*9)*99+z,a,a)

Oct 2 2018 5:23 AM UTC

}// 140/140

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Strange crystals v0.140b

Show more comments…
u/joeytwiddle

Blimey!
u/robbyg

I would love to read a write-up of this some time!
u/BalintCsala

They aren't really complicated, they draw a circle of rectangles with a pseudo random displacement to make it seem more natural. The track is just a bunch of rectangles
u/richev

Maybe not complicated once you understand how it works, but sure seems complicated to me. As @robbyg said, I'd love a detailed write-up.
u/yonatan

write-up: http://zozuar.org/txt/sc/
u/Joachim

#tunnel #cavern

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BalintCsala

function u(t) {

eval(unescape(escape`景爨欽椽㉥㌻椭ⴻ砮晩汬剥捴⡓⡴⤪稫㤶〫匨洽房⡫⩪簰⤪⨴㨰⤪爭猯㈬䌨琩⩺⬵㐰⭃⡭⤪爬猬房猺猯㤩⥢㵩┲㤬稽椯㤬樽⡩⽫⭴⤥ㄬ爽⡢㼱攴㨸攳⤯稬猽㙥㌯稬砮晩汬却祬攽刨愽㤹⭓⡪⨹⤪㠸ⱡⱡ⤻`.replace(/u(..)/g,"$1%")))//SC

Oct 2 2018 12:01 AM UTC

}// 140/140

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Strange crystals v0.140

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u/BalintCsala

Thanks to u/yonatan for making this possible
u/joeytwiddle

Strange crystals was a #js1k demo so wow! https://js1k.com/2013-spring/demo/1459 https://js1k.com/2013-spring/demo/1555
u/joeytwiddle

yonatan's 139 redux: for(k=i=2e3;i--;x.fillRect(960+S(m=(k*j&-b)**4)*r-z,540+C(m)*r,T=5e3/z,T))b=i%9>0,j=(i/k+t)%1,z=i/9,r=(b?1e4:8e3)/z,x.fillStyle=R(S(j*9)*z)
u/joeytwiddle

yonatan's 149 redux: for(k=i=2e3;i--;x.fillRect(960+S(m=(k*j&-b)**4)*r-z,540+C(m)*r,s=5e3/z,s))b=i%9>0,j=(i/k+t)%1,z=i/9,r=(b?1e4:8e3)/z,x.fillStyle=R(a=99+S(j*9)*99,a,a)
u/magna

Whoa!
u/lionleaf

#minecraft
u/iverjo

#witchcraft
u/Joachim

#tunnel

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Purpzie

remix of d/251 by u/lionleaf

function u(t) {

B=' BOTTLES OF BEER';O=' ON THE WALL. '
a=i=>i&&i+B+O+i+B+'. TAKE 1 DOWN, PASS IT AROUND, '+(--i)+B+O+a(i)
x.fillText(a(c.width=99),-t*99,9)

Oct 1 2018 8:23 PM UTC

}// 140/140

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fixed the grammar and made it funnier

u/donbright

bwahaha

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yonatan

remix of d/10175 by u/yonatan

function u(t) {

eval(unescape(escape`景爨挮睩摴栽㤹Ⱪ㴲攳㭩ⴭ㭾⡱籙⤦㐦☱㰼⡙㰼㉼焪㈩☳㔹㑼籸⹦楬汒散琨㔰⭃⡭⤪爬甪㈲ⵓ⡭⤪爯㌬㘬㔩⥡㵩⼱㠬爽⠹⭃⡩⤩⨶⩓⡓⡵㴳⵩⼶㘶⤪⨮㔩ⱸ⹦楬汓瑹汥㵒⡧㵓⡭㵴⭡⤪㌰〬术㈩ⱙ㵵⨳ⴴⱱ㵡┶⸳`.replace(/u(..)/g,"$1%")))

Sep 30 2018 7:51 PM UTC

}// 140/140

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Another jackolantern (thx u/BirdsTweetCodersDweet)

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u/yonatan

for(c.width=99,i=2e3;i--;~(q|Y)&4&&1<<(Y<<2|q*2)&3594||x.fillRect(50+C(m)*r,u*22-S(m)*r/3,6,5))a=i/18,r=(9+C(i))*6*S(S(u=3-i/666)**.5),x.fillStyle=R(g=S(m=t+a)*300,g/2),Y=u*3-4,q=a%6.3
u/yonatan

Light it with: R(g=300-S(m=t+a)*255,...
u/joeytwiddle

#halloween #pumpkin
u/donbright

insane
u/katkip

i do not have word to say
u/magna

*curse words*
u/sigveseb

holy
u/UEZ

Can you explain me how JS executes this: ~(q|Y)&4&&1<<(Y<<2|q*2)&3594||x.fillRect()? Thx

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Purpzie

remix of d/6048 by u/staberinde

function u(t) {

for(c.width|=i=0;i<361;i++)x.fillRect(C(i)*(a=i*C(t*i/360))+960,S(i)*a+540,9,9)

Sep 29 2018 6:56 PM UTC

}// 79/140

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Shortened by a whopping 55 characters

u/donbright

inspired by @Purpzie #interference i simplified an old one ... what fascinates me is the entire pattern is based on modulo function applied to Quadrance, there is no cosine, sine, trig, or even really commands to draw colors based on posiiton. #waitforit
u/donbright

sorry meant to post that on my remix
u/Purpzie

oh pfft it's okay

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