Dweets awesomed by u/cantelope

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: #Food

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joeytwiddle

function u(t) {

for(c.width|=i=66;i--;x.fill())x.beginPath(s=(t/9+i/66)%1),r=96+267*s,d=.5-C(6*s)/2,d*=99*d-66*d*d,x.arc(960+C(m=i*.38)*r,540+S(m)*r,d,0,7)

Sep 11 2018 3:44 PM UTC

}// 139/140

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https://twitter.com/beesandbombs/status/5082… by u/yonatan and u/prplz on Discord

u/f8f82804

#beesandbombs

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joeytwiddle

remix of d/9734 by u/yonatan

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㴧楮癥牴⠱✻景爨挮睩摴栽欽㌱㘻欭ⴻ砮晩汬剥捴⠱㔷⭘⩃⡴⤫搪匨琩ⰸ㘫爪䌨㐪吩ⱳ㵫⼵〬猩⥔㵫⼴〫琬砮晩汬却祬攽刨爽㐰⬲〪匨吪㌩ⱘ㵲⩓⠴⩔⤬搽㘰⩃⡔⨳⤬⸷⬨堪匨琩ⵤ⩃⡴⤩⼹㤩`.replace(/u(..)/g,"$1%")))

Sep 11 2018 4:45 AM UTC

}// 139/140

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#knot quite a remix

u/joeytwiddle

The green and purple shades appeared accidentally when I put code inside R(_,_,_)
u/donbright

i can follow it,, really cool

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f8f82804

remix of d/9721 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;){
ϕ=i/3/(99+S(t));
X=S(i)*S(ϕ);
Y=C(ϕ);
Z=C(i)*S(ϕ)+2;
if(Z<1.6)x.fillRect(960+800*X/Z,540+800*Y/Z,s=32*(1.6-Z),s);
}

Sep 9 2018 9:35 PM UTC

}// 139/140

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#cell #sphere #animated #perspective

u/donbright

thats weird... like a fruit or something

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f8f82804

function u(t) {

c.width^=r=a=>x.rotate(a);x[l='translate'](960,a=99);f=d=>d--&&x.fillRect(0,t%1*a,9,9)&x[l](0,a)&r(4)&f(d)&r(4)&f(d)&r(-8)&x[l](0,-a);f(t&7)

Sep 8 2018 5:59 AM UTC

}// 140/140

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Inspired by d/9635, but with a very different approach: no looping or explicit state #functional #golf

u/donbright

how???????
u/f8f82804

Looping is done by recursion and state is managed with the context's transform stack
u/Toby

Hi, could you explain what x[l='translate'] is accessing, please?

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cantelope

function u(t) {

eval(unescape(escape`儽⡰ⱱ⤽㹸⹦楬汒散琨眫堪瀯娪眭⡳㴱⬶〰⽚⽚⤯㈬栫太焯娪眭猯㈬猬猩㭦潲⡣⹷楤瑨簽眽椽⡨㴵〰⤪㈻椭ⴻ儨ㄬㄩⱑ⠭ㄬㄩⱑ⠭ㄬⴱ⤬儨ㄬⴱ⤩堽㐭⡩⽨⬱〰⤥㘬夽椯栭㈬瘽㜰⭓⡴⤪㘰簰ⱚ㵶⴨椫琪㘩┨瘭ㄩ`.replace(/u(..)/g,"$1%")))

Sep 8 2018 5:16 AM UTC

}// 140/140

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u/Xen

Yess!
u/iverjo

Interesting
u/donbright

dude ... so we are falling.. and then we are abt to hit ground... and then we are falling again...

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cantelope

function u(t) {

eval(unescape(escape`景爨砮晩汬却祬攽怣㄰㌸怬砮晩汬剥捴⠰ⰰⱷ㴲攳ⱷ⤬椽㈰〬砮景湴㴧㜵灸⁡✻椭ⴻ砮晩汬呥硴⡓瑲楮朮晲潭䍯摥偯楮琨ㄲ㠱㔱⭩┹⤬⡶┱㜭ㄫ匨瀽⸳㔪瘩⨱⸵⤪ㄲ㠬⡶⼱㝼〩⨱㈸ⴲ㘴⭓⡰⤪ㄱ〩⥶㵩⭴⨸┱㠻`.replace(/u(..)/g,"$1%")))

Sep 8 2018 1:06 AM UTC

}// 140/140

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u/innovati

❤️🧡💛💚💙💜🖤❣️💕💞💓💗💖💘💝
u/iverjo

#hearts
u/donbright

wo;d
u/donbright

wild

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BalintCsala

function u(t) {

c.width=500
for(x.scale(i=5,5);i--;k=S(t*5),x[H]("⚪",S(T=(i?k>0:k<0)?k:0)*20+23+i*42,C(T)*20+30))x[H="fillText"]("⚪",30+i*7,50)

Sep 7 2018 8:45 AM UTC

}// 127/140

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Newton's cadle

u/fujimotos

#physics

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donbright

function u(t) {

c.width=2e3
for(i=0;i<t*t;i++){Φ=Math.acos(1-2*i/t/t)
Θ=10.1664*i
x.fillRect(
500*(2+C(Θ)*S(Φ)*S(t)+C(Φ)*C(t)),
500*(1+S(Θ)*S(Φ)),9,9)}

Sep 7 2018 4:57 AM UTC

}// 135/140

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Evenly spaced points on a sphere, based on CR Drost's phyllotaxis sunflower cylyndrical equal area map in python: https://stackoverflow.com/questions/9600801/…

u/joeytwiddle

Useful! #sphere
u/Odog8

Love me a PHI sphere in the morning!

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f8f82804

remix of d/9617 by u/cantelope

function u(t) {

c.width=480;x.translate(w=240,130);x.rotate(S(t));for(i=17;i--;x.lineTo(w*.7*S(p=1.57*i-t+(g=i/4|0)*11)/(Z=2+C(p)),w*(g%2-.5)/Z));x.stroke()

Sep 6 2018 9:32 PM UTC

}// 140/140

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compound 3D rotations #d3 #cube #perspective

u/donbright

awesome
u/cantelope

neat trick :)
u/f8f82804

#wireframe

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f8f82804

remix of d/9676 by u/f8f82804

function u(t) {

eval(unescape(escape`景爨椽挮睩摴桞㴰㭩ⴭ㭸⹢敧楮偡瑨⡸⹦楬氨⤩⥃⡡㵴⵩⤾〦♸⹥汬楰獥⠹㘰⬨堽⡩⨹㘰⵩⩩⤪⨮㔪匨愩⤬㘰⭩Ⱘ猽㈵⴨匨愭ㄩ⨨戽⠱⴨⡙㵩ⴴ㠰⤯㐸〩⨪㈩⨪⸵⤩⨪㐪㈴⤪䌨愩⩢ⱳⱍ慴栮慴慮⡙⽘⤬〬㜩`.replace(/u(..)/g,"$1%")))

Sep 5 2018 8:57 PM UTC

}// 138/140

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#specular #d3 #sphere #animated #compressed

Show more comments…
u/f8f82804

for(i=c.width^=0;i--;x.beginPath(x.fill()))C(a=t-i)>0&&x.ellipse(960+(X=(i*960-i*i)**.5*S(a)),60+i,(s=25-(S(a-1)*(b=(1-((Y=i-480)/480)**2)**.5))**4*24)*C(a)*b,s,Math.atan(Y/X),0,7)
u/joeytwiddle

I like how the circles become ellipses at the edges. https://codegolf.tk/a/254
u/magna

WHOA
u/f8f82804

u/joeytwiddle: that's the whole point of this demo, the lighting is just there because I had to compress it and had leftover space
u/f8f82804

you can see this concept implemented without compression in d/9676
u/iverjo

Very nice!
u/f8f82804

#fullhd

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