Dweets awesomed 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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The42ndTurtle

function u(t) {

function g(y,c){m=0
for(i=0;i<=t;i+=.01)m+=y((i**2)/2+c)*.01
return m}
for(j=0;j<6;j++)
x.fillRect(g(C,j)*200+960,g(S,j)*200+540,2,2)

Mar 21 2019 11:22 PM UTC

}// 134/140

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Cornu Flower

u/pavel

I glanced at the canvas, noticed how the right two spirals are wider apart than the rest, and my brain immediately went to 'they must be using 6 instead of 2*pi somewhere.' I'm on here too much haha.

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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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vinca

function u(t) {

for(x.fillRect(0,0,2e3,1e3),x.font="28em'",x.fillText("🍄",580,900),i=1080;i-=10;)x.drawImage(c,0,i,2e3,10,0,i,2e3+20*S(99*t+.02*i),10)

Mar 21 2019 11:46 AM UTC

}// 137/140

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u/Xen

:-)

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nickmonad

function u(t) {

c.width=225
for(i=0;i<4;i++){x.fillStyle=`hsl(${S(t)*(i+20)*7},${70+i}%,50%`
x.fillRect(i*30,0,15,105)
x.fillRect(120,i*30,100,15)}

Mar 20 2019 11:36 PM UTC

}// 131/140

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ableton #music #coding #party

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marc8

function u(t) {

c.width|=d=.01
function g(a,b,n,r){for(i=6.28;i>0;)x.arc(a,550,r+50*(S(b*t+i*n)>0),i-=d,i)}x.fill(g(1400,9,14,300));x.fill(g(600,-9,21,450))

Mar 20 2019 10:39 PM UTC

}// 140/140

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Very rough gears. Don't try this at home.

u/tomxor

With an arrow function there is enough space for some tapered gears :) g=(a,b,n,r)=>{ then i-=d,i+.05)
u/tomxor

Arrow function seems to need a space after the } though !
u/somebody

c.width+=0 and replacing d with .1 directly saves two bytes. might be able to improve the tapering or something
u/katkip

#gear
u/aleamb

amazing!

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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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tomxor

function u(t) {

eval(unescape(escape`挮睩摴栽㈴〻挮獴祬攽❦楬瑥爺獥灩愨ㄩ楮癥牴⠱✻景爨椽㉥㐻椭ⴻ⥸⹦楬汒散琨ㄲ〫㔰⩓⡘㵩┱㈰⼳㤩⩃⡙㵩⼶攳⤭䌨夫琩⨨娽匨匨堯太㠫堪ㄶ⭴⨲⤫匨太㐩⭴⤩ⰶ㜫㔰⩃⡘⤭䌨堫琩⩚ⱓ⡘⤬䌨夫娯㈫堫琩⤻`.replace(/u(..)/g,"$1%")))

Mar 20 2019 12:56 AM UTC

}// 140/140

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Water World #planet #space

u/lionleaf

#compressed #shading I'm really enjoying all these space related dweets
u/tomxor

Thanks lion :) glad your enjoying them, I think i've almost run out of things ot map to pseudo spheres now though :P
u/rnbw

breathtaking

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