Dweets awesomed by u/sigveseb

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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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭴⼽㈻昽⡘ⱙⱳ⤽㹻砮扥杩湐慴栨⤻楦⡳㸲〩砮慲挨堬夬猬〬㜩ⱸ⹳瑲潫攨⤬昨堫䌨猫琩⩳ⱙⱳ⼲⤬昨堭䌨猫琩⩳ⱙⱳ⼲⤬昨堬夫䌨猫琩⩳ⱳ⼲⤬昨堬夭䌨猫琩⩳ⱳ⼲⥽㭦⠹㘰ⰵ㐰ⰷ〰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 10:15 AM UTC

}// 135/140

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#circles #fractal #recursion #recursive I'm just like a gifted autistic kid who finally discovered recursion c.width^=0;t/=2;f=(X,Y,s)=>{x.beginPath();if(s>20)x.arc(X,Y,s,0,7),x.stroke(),f(X+C(s+t)*s,Y,s/2),f(X-C(s+t)*s,Y,s/2),f(X,Y+C(s+t)*s,s/2),f(X,Y-C(s+t)*s,s/2)};f(960,540,700)

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katkip

function u(t) {

f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a+c,b+c,c/2,c/2),f(a-c/2,b+c,c/2,c/2),f(a-c/2,b-c/2,c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(635,215,650)

Dec 30 2018 9:53 AM UTC

}// 138/140

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#recursion #recursive microprocessor #fractal

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katkip

remix of d/11582 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭺㴨堬夬猩㴾筩昨猾㄰⥸⹦楬汒散琨堪猬夬猪㐬猩ⱸ⹦楬汒散琨堬太猬猬猪㔩ⱺ⡘⵳⨲ⱙⱳ⼱⸷⤬稨堬夭猪㈬猯ㄮ㜩ⱺ⡘ⱙ⭳ⱳ⼱⸷⤬稨堫猪㈬夬猯ㄮ㜩紬稨㤶〬㔴〬㈸〫䌨琪㈩⨲〩`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:44 AM UTC

}// 133/140

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#default in traffic #recursion

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katkip

remix of d/11581 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭺㴨堬夬猩㴾筩昨猾㄰⥸⹦楬汒散琨堭猬夬猪㈬猯䌨琩⤬砮晩汬剥捴⡘ⱙ⵳ⱳ⼱〬猪㤩ⱺ⡘⵳ⱙⱳ⼲⤬稨堬夭猬猯㈩ⱺ⡘ⱙ⭳ⱳ⼲⤬稨堫猬夬猯㈩紻稨㤶〬㔴〬㈸〫䌨琪㈩⨲〩`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:35 AM UTC

}// 130/140

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Floating island of #fractal s #sierpinski

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭣牯獳㴨堬夬猩㴾筩昨猾㄰⥸⹦楬汒散琨堭猬夬猪㈬猯㄰⤬砮晩汬剥捴⡘ⱙ⵳ⱳ⼱〬猪㈩Ᵽ牯獳⡘⵳ⱙⱳ⼲⤬捲潳猨堬夭猬猯㈩Ᵽ牯獳⡘ⱙ⭳ⱳ⼲⤬捲潳猨堫猬夬猯㈩紻捲潳猨㤶〬㔴〬㈸〫䌨琩⨹㤩`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:30 AM UTC

}// 140/140

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Quadric Cross #fractal #recursion

u/katkip

c.width^=0;cross=(X,Y,s)=>{if(s>10)x.fillRect(X-s,Y,s*2,s/10),x.fillRect(X,Y-s,s/10,s*2),cross(X-s,Y,s/2),cross(X,Y-s,s/2),cross(X,Y+s,s/2),cross(X+s,Y,s/2)};cross(960,540,280+C(t)*99)
u/katkip

It could be golfed more but, eh, I would still need compression

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katkip

function u(t) {

x.globalAlpha=.9;for(i=0;i<96;i++)x.fillStyle=R(128+C(i*i+S(t*i*i))*128,C(i*t)*256,T(i*i*t)*99),x.fillRect(i*20,0,20,20);x.drawImage(c,0,20)

Dec 30 2018 9:24 AM UTC

}// 140/140

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Fluid color

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rodrigo.siqueira

remix of d/11566 by u/ellisk1

function u(t) {

with(x)for(m=q=t*30|0;m-->q-90;fill(arc(960+(r=m**.2*60*S(m))*S(a=m**4),540+r*C(a),w*3,0,9)))beginPath(fillStyle=R((w=q-m)*2,0,0,1/w**1.48))

Dec 28 2018 6:18 PM UTC

}// 140/140

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Mutating blood cell on microscope

u/aleamb

great! #cell
u/rodrigo.siqueira

#blood #coronavirus #growth

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Xen

remix of d/11571 by u/katkip

function u(t) {

x.strokeRect(0,0,1e3,1e3)
x.drawImage(c,C(t)*99,S(t)*99)
x.strokeStyle=`hsla(${t*99},50%,50%,.1)`
x.rotate(T(-t/2)/1e3)

Dec 28 2018 2:42 PM UTC

}// 119/140

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u/katkip

Wow
u/jick

Portal to the Venetian blinds dimension...

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13thptr

function u(t) {

c.width=w=400;x.fillText(x.font=m="17px Hello",0,19)
x.getImageData(0,0,w,j=99).data.map((e,i)=>e&&x.fillRect(j*C(i%w*.016-t)+j,i/w,3,3))

Dec 28 2018 11:13 AM UTC

}// 137/140

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Somewhat ambiguous because of implicit orthographic projection

u/13thptr

(first dweet :D)
u/13thptr

add |0 after i/w for a more solid look
u/lionleaf

Nice! Glad to see you make a first dweet :D
u/jylikangas

Welcome! Very nice 1st Dweet! Golfed to 131b -> c.width=w=400; with(x)getImageData(fillText(font="17px Hello",0,19),0,w,j=99).data.map((e,i)=>e&&fillRect(j*C(i%w/63-t)+j,i/w,3,3))
u/13thptr

thanks for the nice comments ! u/jylikangas cool tricks but it seems like inlining fillText in getImageData won't work in FF :(

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ellisk1

function u(t) {

with(x)for(m=q=t*30|0;m-->q-99;fill(arc(960+(r=m**.5*20*C(m))*S(a=m**3),540+r*C(a),w,0,7)))beginPath(fillStyle=R((w=q-m)*2,0,0,1/w**1.48))

Dec 28 2018 1:29 AM UTC

}// 138/140

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VIRUS

u/katkip

#virus I hope this will not aggravate my cold.
u/BirdsTweetCodersDweet

:O

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