Dwitter - javascript demos in 140 characters

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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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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JWinslow23

remix of d/11668 by u/Agnes

function u(t) {

eval(unescape(escape`睩瑨⡸⥁㵡㴾䵡瑨⹲慮摯洨⤪㐰簰ⱂ㴰籁⠩⼸ⱳ整呲慮獦潲洨ㄬ〬〬ㄬ䄨⤪㐸ⱁ⠩⨲㜩Ⱳ潴慴攨䵡瑨⹐䤪䈯㈩Ᵽ汥慲剥捴⠭㈴Ⱝㄳ⸵ⰴ㠬㈷⤬䈦♦楬汒散琨ⴲ〬ⴱ㌮㔬㐰ⰲ㜩`.replace(/u(..)/g,"$1%")))

Jan 6 2019 11:13 PM UTC

}// 124/140

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Alien robot factory (golfed a bit more, but not enough)

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akm

remix of d/11635 by u/Undefined

function u(t) {

t||x.translate(956,536);for(i=360;i--;x.fillStyle=`hsl(${T(frame)*T(i)*999^i} 100%50%)`)x.fillRect(i*1.4,0,6,6);x.rotate(.01)

Jan 5 2019 9:50 PM UTC

}// 125/140

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fuzzy circle

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JWinslow23

remix of d/11662 by u/JWinslow23

function u(t) {

if(!t)p=0n,d=1n;for(y=9n;y*20n*p+y*y>d;y--);d=100n*(d-y*20n*p-y*y)+25n*BigInt(!p);throw 1.6+`${p=10n*p+y}`.slice(2)

Jan 5 2019 8:58 PM UTC

}// 115/140

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Throws the digits of phi (the "golden ratio") as an error, forever... (except it now actually fits even more in a dweet)

u/13thptr

2 bytes less :t||(p=0n,d=1n);for(y=9n;y*20n*p+y*y>d;y--);d=100n*(d-y*20n*p-y*y)+25n*BigInt(!p);throw 1.6+${p=10n*p+y}.slice(2)
u/13thptr

*1 byte my bad

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ellisk1

remix of d/11640 by u/metamero

function u(t) {

x.font='46px"'
t?i=a++%46:a=0
x.fillStyle=`hsl(${a*16},90%,50%)`
f=b=>x.fillText(b[a%3],46*i,a-i)
f('╱╲╱')
f('⎸  ')

Jan 4 2019 8:29 PM UTC

}// 115/140

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Rainbow Stairs

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Agnes

function u(t) {

eval(unescape(escape`䄽愽㹍慴栮牡湤潭⠩⩡㭂㵁⠵⤻儽䄨㐰⤻娽䄨㐰⤻䰽䈾㐻砮獥瑔牡湳景牭⠱ⰰⰰⰱⰴ㠪繾儬㈷⩾繚⤬砮牯瑡瑥⠡䰪䵡瑨⹐䤪繾䈯㈩㭸⹣汥慲剥捴⠭㈴Ⱝㄳ⸵ⰴ㠬㈷⤻砮晩汬剥捴⠭㈰Ⱝㄳ⸵Ⱑ䰪㐰ⰲ㜩`.replace(/u(..)/g,"$1%")))

Jan 6 2019 6:50 PM UTC

}// 135/140

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Alien robot factory

u/Agnes

This may be possible in 140 but I couldn't put the time in today. If you figure out how, post it as a remix!!!
u/JWinslow23

This ain't much, but it helps: with(x)A=a=>Math.random()*40|0,B=0|A()/8,setTransform(1,0,0,1,A()*48,A()*27),rotate(Math.PI*B/2),clearRect(-24,-13.5,48,27),B&&fillRect(-20,-13.5,40,27)

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metamero

remix of d/11636 by u/metamero

function u(t) {

c.before('╲╱'[Date.now()&1]+'')
c.parentNode.style.lineHeight=1

Jan 4 2019 2:24 PM UTC

}// 64/140

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classic #maze : aligned

u/metamero

d/11644 d/11640 d/11637 d/11633 collection of different implementations
u/loktar

Decided to check the maze tag after submitting my own.. this is great! Much shorter than my own vs.

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metamero

remix of d/11631 by u/metamero

function u(t) {

throw u+='╲╱'[Date.now()&1]

Jan 4 2019 1:10 PM UTC

}// 27/140

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throw #maze

u/katkip

#genius
u/metamero

d/11644 d/11640 d/11637 d/11633 collection of different implementations
u/aleamb

lol!

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metamero

remix of d/11640 by u/metamero

function u(t) {

i=frame%32 
j=(frame-i)/32
a=Math.random(onclick=reset)>.5?9:129
i%2^j%2&&x.fillRect(60*i-(a>9?60:0),60*j-(a>9?0:60),a,a>9?9:129)

Jan 4 2019 11:07 PM UTC

}// 129/140

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yet another #maze (same idea as classic but twisted implementation)

u/katkip

guess you can't make it solvable

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username

remix of d/11642 by u/yonatan

function u(t) {

for(i=c.width|=0;i--;x.fillStyle=`hsl(${S(frame/99)*99&i} 99%36%)`)x.fillRect(S(i+t)*(i<1500?i/3:99)+960,i/2,9,9)

Jan 4 2019 7:32 PM UTC

}// 113/140

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