New #WaitForIt dweets

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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pavel

remix of d/11116 by u/vistefan

function u(t) {

t?0:D=[0,-5,0,d=5,w=X=Y=150]
for(i=w;i--;x.fillRect(X,Y,5,5))x.fillStyle=R(b=w-x.getImageData(X+=D[d&3],Y+=D[++d&3],1,1).data[0],b,d+=b&&2)

Nov 22 2018 7:01 AM UTC

}// 139/140

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Fast Langton's ant #waitforit

u/katkip

Wow thats cool
u/pavel

#ant #automata

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vistefan

function u(t) {

eval(unescape(escape`瀽㄰㭡㵴㽡㨹㘰㭯㵴㽯㨵㐰㭤㵴㽤㨰㭶㵸⹧整䥭慧敄慴愨愬漬ㄬㄩ⹤慴慛ㅝ㭸⹦楬汓瑹汥㵶㼧⌰〰✺✣晦昧㭸⹦楬汒散琨愬漬瀬瀩㭤⬽瘿ㄺ㌻搥㴴㭯⬽Ⅴ㼭瀺搽㴲㽰㨰㭡⬽搽㴱㼭瀺搽㴳㽰㨰;`.replace(/u(..)/g,'$1%')));//ant

Nov 22 2018 12:16 AM UTC

}// 138/140

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🐜 Langton's ant (he is turing-complete :) The idea is to use canvas buffer as data storage. Let's try to implement Game of Life, guys?

u/cantelope

ayy. don't mean to burst your bubble, but... https://www.dwitter.net/h/gameoflife
u/pavel

139: t?x.fillStyle=R(b=255-x.getImageData(X+=D[d%=4],Y+=D[++d%4],1,1).data[0],b,b,d+=b&&2):(X=960,Y=540,d=s=10,D=[0,-s,0,s]);x.fillRect(X,Y,s,s)
u/pavel

Ultimate #waitforit
u/vistefan

u/cantelope aww
u/vistefan

very haxxorz

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katkip

remix of d/11033 by u/katkip

function u(t) {

t||x.translate(960,540);x.fillStyle=`hsl(${t*99} 99%50%)`;x.fillRect(0,00,10,999);x.drawImage(c,200,200,800,800);x.rotate(Math.PI/4+.005)

Nov 17 2018 7:22 PM UTC

}// 137/140

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AWESOME #waitforit #fractal

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Xen

remix of d/11008 by u/rnbw

function u(t) {

x.fillStyle='#'+(13*t|0);for(j=12;j--;)for(i=22;i--;)x.beginPath(x.fill(x.arc(99*i,99*j,S(t*3+i*3.14+j*3.14)*20+49,0,t)))

Nov 16 2018 7:48 PM UTC

}// 121/140

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#waitforit

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pavel

function u(t) {

for(d=t<8,n=i=256;i--;x.fillRect(d?9*i:855+n*i*(i<2),!d*300,50,d?4:50))x.fillStyle=R(C((t|Math.abs(i-107))**.5*t)<0&&n)
x.drawImage(c,0,d*4)

Nov 12 2018 3:19 AM UTC

}// 140/140

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Demon

Show more comments…
u/magna

Amazing!
u/iverjo

Spot on!
u/katkip

nice idea
u/ndr3w221

this is awesome!
u/and3k5

i did not expect the last bit! scary!
u/aleamb

great! #waitforit
u/lionleaf

Amazing #demon

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Xen

remix of d/9726 by u/katkip

function u(t) {

for(c.width|=i=399,x.transform(0,1,1,0,960,540);i--;x.rotate(t/9))x.fillRect(i*3,i,i/6,i)//Xen

Nov 9 2018 9:03 PM UTC

}// 94/140

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#waitforit

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anotherkitten

function u(t) {

e=(a,b)=>a/b&1?b-a%b:a%b;x.fillRect(0,0,j=2e3,j);x.globalAlpha=.1;for(;j--;x.clearRect(e(t*360*S(b),1911),e(t*360*C(b),1071),9,9))b=j/1200

Nov 9 2018 6:36 PM UTC

}// 138/140

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faster and cleaner version of linear ripple

u/katkip

I love this one!
u/iverjo

#waitforit

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Xen

remix of d/10852 by u/rodrigo.siqueira

function u(t) {

t<5?x.drawImage(c,-92,99,2100,1e3):x.drawImage(c,C(t^t*2),4)
x.font='150px"'
x.fillText('AT A RI',715,99)
x.fillStyle=`hsl(${t*500} 90%50%)`

Nov 5 2018 7:03 PM UTC

}// 140/140

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Atari Demo #waitforit

u/magna

#atari

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magna

function u(t) {

eval(unescape(escape`瑼簨愽䅲牡礨挮睩摴栽眽ㄹ㈩⹦楬氨〩⤻砮杬潢慬䍯浰潳楴敏灥牡瑩潮㴧桵攧㭸⹤牡睉浡来⡣ⰰⰰⱷⱷⰰⰱⱷⱷ⤻景爨椽眻椭ⴻ砮晩汬剥捴⡩ⰰⰱⰱ⤩砮晩汬却祬攽恨獬⠤筡孩崫㵩紬㤹┬㔰╠`.replace(/u(..)/g,"$1%")))

Nov 4 2018 5:41 PM UTC

}// 132/140

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Security camera pointing at barn wood wall

u/magna

(My first compressed dweet, yay!)
u/magna

#waitforit
u/yonatan

147: i=192;t||(c.width=i);x.globalCompositeOperation='hue';for(x.drawImage(c,0,1);i--;x.fillRect(i,0,1,1))a=u[i]||0,x.fillStyle=hsl(${u[i]=a+i} 99%50%
u/magna

Doesn't create the same wood texture artifacts on Windows BTW.

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veubeke

remix of d/4877 by u/veubeke

function u(t) {

s = (c.width=1920/(t+1)|0)/32
for(i = 576; i--;)
 x.setTransform(s, 0, 0, s, i%32*2*s, (i>>5)*2*s),
 x.fill(new Path2D('M1 0L2 1L1 2L0 1'))

Oct 31 2018 7:39 PM UTC

}// 139/140

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