Dweets awesomed by u/rsrsrs

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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DataMeta

function u(t) {

c.style.background=R()
with(x)for(w=i=256;i--;beginPath(fill()))fillStyle=R(i,k=C(i)*i*.6,-k,.3),arc(960+w*S(t+.993*i^0),540+w*S(t+i),4,0,7)

Mar 21 2019 6:22 PM UTC

}// 140/140

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warm colors

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Xen

remix of d/12849 by u/vinca

function u(t) {

t?x.font="28em'":x.globalAlpha=.1
for(i=99;i--;)x.fillText("🍄",650+C(t*i)*i*9,700+S(i+t)*i*9)

Mar 21 2019 3:04 PM UTC

}// 96/140

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u/vinca

cool (((🍄)))
u/andrea270872

that's one POTENT mushroom :D
u/magna

ahahahah
u/iverjo

#mushroom

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yokljo

function u(t) {

c.style.filter='invert(1)'
for(i=190;i--;)o=300+i*Math.random()*C(t),j=i/50,x.fillRect(960+S(t*i+j)*o,540+C(t*i/3+j)*o,2,o/i/20)

Mar 21 2019 12:13 PM UTC

}// 128/140

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Give it at least 10 seconds to start looking nice. After about a minute it's desktop-background-worthy :)

u/Jezza

#waitforit
u/geb

#background

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pavel

remix of d/12841 by u/andrea270872

function u(t) {

for(k=c.width|=0,x.scale(s=9+C(t),s);k--;)x.fillText([...'🏡🏠⛲🌊🌳🌳🌲 '][k**2.9&7],(k%40-9+9*C(t/2))*9,(k/40-9+9*S(t/3))*9)

Mar 20 2019 7:36 PM UTC

}// 119/140

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Sim city

u/katkip

looks like a tsunami flood city to mo lmao

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andrea270872

function u(t) {

c.width|=j=1
for(;j++<15;)for(i=19;i--;x.font=C(t)+6+"em'")x.fillText([...'🏡🌊🌳 '][~~((S((i-~(S(t)*6))*(j+~(C(t)*9))*97)+1)*2)],i*99,j*69)

Mar 20 2019 5:32 PM UTC

}// 137/140

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A map with panning and "zoom"

u/tomxor

oh wow neat! i keep missing these ones cos on chromium linux i get a bunch of tofu - FF is ok though.
u/joeytwiddle

I had a lot of tofu on Ubuntu but then I installed a new Manjaro ;-)
u/tomxor

I'm running minimal a debian, I think it's just missing font packages but can't be bothered to hunt for them. I will try Arch one day when I'm braver :P

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andrea270872

function u(t) {

r=_=>Math.random()
x.font=2+r()*3+"em'"
x.fillStyle='white'
for(i=7;i--;)x.fillText([...'🌱🌾🍁❄'][(t>>2)%4],r()*2e3,75+r()*1e3)

Mar 19 2019 4:57 PM UTC

}// 125/140

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Year

u/lionleaf

#seasons I'm enjoying this one!
u/DataMeta

Heh. Nice.

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batboy

function u(t) {

t==0?p=Array(1920).fill(1):0
for(i in p)Math.random(x.fillRect(i,0,1,p[i]))<.5?p[i]+=10:0
if(p.every(o=>o>1110))p.fill(1),x.fillStyle="#7cf"

Mar 19 2019 2:35 AM UTC

}// 140/140

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tomxor

function u(t) {

eval(unescape(escape`挮睩摴栽㐸〻挮獴祬攽❦楬瑥爺楮癥牴⠱⥳数楡⠱✻景爨椽㉥㐻椭ⴻ⥸⹦楬汒散琨㈴〫㤹⩓⡘㵩┱㈰⼳㤩⩃⡙㵩⼶攳⤭䌨夫琩⨨娽匨匨太㐩⽃⡘⨱㘯天⤪⨵⨸⤬ㄳ㔫㤹⩃⡘⤭䌨堫琩⩚ⱓ⡘⤬䌨夫娯ㄶ⭴⤪⨷⨳⤻`.replace(/u(..)/g,"$1%")))

Mar 18 2019 11:00 PM UTC

}// 140/140

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Super Dune #planet #space

u/tomxor

A tumultuous and dusty planet trapped in the middle of a binary star system (my excuse for lighting both sides :D). prepend t/=6; if you have a crazy fast GPU
u/lionleaf

Wow, this one is simply amazing!
u/aleamb

wow! superb! amazing!
u/iverjo

Very good!
u/vain

Unbelievable great bump map like fx

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katkip

remix of d/12812 by u/New_Core

function u(t) {

x.fillRect(0,0,b=c.width=160,b)
for(i=2e3;i--;x.fillRect((i/1.4)%b,S(i/999+C(t-i/12)/9)*90,1,a))a=5+2*S(i/5+t),x.fillStyle='#f14'

Mar 18 2019 12:56 PM UTC

}// 129/140

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More pewdiepieier lines

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vinca

function u(t) {

c.width|=0,F=(e=>{0!=e&&(x.beginPath(),x.arc(1e3+50*C((t+.1*e)%6.4),500+45*S((t+.13*e)%6.4),9*e,0,6.1),x.stroke(),F(e-2))}),F(130)

Mar 18 2019 3:42 AM UTC

}// 130/140

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