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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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buddybearalex

function u(t) {

c.width = 1920
x.font=75+"px'"
for(j=0;j<100;j++) for(i=0;i<100;i++)
x.fillText('g',S(t+i)*100*j+c.width/2,C(t+i)*100*j+c.height/2)

Sep 1 2024 3:04 AM UTC

}// 131/140

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g carousel

u/gai

g
u/magna

#g

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buddybearalex

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㵠楮癥牴⡠ഊ砮晩汬却祬攽刨匨琩⨲㔵ⱓ⡴⨲⤪㈵㔬匨琪㌩⨲㔵⤍੦潲⡪㴭㄰〻樼㄰〻樫⬩⁦潲⡩㴭㄰〻椼㄰〻椫⬩ഊ砮晩汬剥捴⠱㤲〯㈫琯㈵⨨椪㄰〩ⰵ㐰⭴⼲㔪⡪⨱〰⤬㔬㔩`.replace(/u([^D].)/g,'$1%')))

Sep 1 2024 2:52 AM UTC

}// 136/140

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psychedelic square

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gai

function u(t) {

eval(unescape(escape`𫐽𜐻𬰽𜰲𞱸𛡳𭁲𫱫𩐨𚐻𮀮𫁩𫡥𥱩𩁴𪀽𝐻𭠽𝐰𜀻𬠽𜐲𞀻𨐽𝠮𜠯𬰻𮀮𫑯𭡥𥁯𚁶𛁶𚐻𪑦𚁴🀱𚑻𩡯𬠨𭡡𬠠𪐽𜐻𪐼𚁳𚰲𚐻𪐫𚰩𮱩𩠨𪐥𜠽🐰𚑻𮀮𫁩𫡥𥁯𚁶𚱲𚡃𚁡𚡩𚐬𭠫𬠪𤰨𨐪𪐩𚑽𮱸𛡬𪑮𩑔𫰨𭠫𬠪𠰨𨐪𪐫𫐯𜠩𛰲𛁶𚱲𚡓𚁡𚡩𚱭𛰲𚐯𜠩𯑽}`.replace(/u../g,"")))

Sep 1 2024 1:35 AM UTC

}// 139/140

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Sawblade Generator (input double wanted sides into s, barely fits into a compressor)

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buddybearalex

function u(t) {

eval(unescape(escape`挮睩摴栽㉥㌍੣⹳瑹汥⹦楬瑥爽恩湶敲琨怍੸⹦楬汓瑹汥㵒⠭匨琩⨹㔬匨琩⨹㔬䌨琩⨹㔩ഊ景爨樽ⴱ〰㭪㰹㤻樫⬩⁦潲⡩㴭㄰〻椼㤹㭩⬫⤍੸⹦楬汒散琨ㅥ㌫⡩⭪⤪⡓⡴⤪権ⰵ攲⬨椫権⨨䌨琩⩩⤬㈵ⰲ㔩`.replace(/u([^D].)/g,'$1%')))

Sep 1 2024 1:31 AM UTC

}// 140/140

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rotating plane

u/gai

epic

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gai

function u(t) {

s=6;x.stroke();x.lineWidth=15;v=500;r=128;a=6.28/s;x.moveTo(v,v);if(t<0.05){for(var i=1;i<s+2;i++){x.lineTo(v+r*C(a*i),v+r*S(a*i))}}

Sep 1 2024 1:02 AM UTC

}// 132/140

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g generator (was polygons)

u/gai

i put the wrong one its just a polygon generator I fixed it looking like a G

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gai

function u(t) {

if(Math.random()>0.5&&t<2){x.fillRect(t*300,0,5,400)}

Sep 1 2024 12:43 AM UTC

}// 53/140

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barcode generator

u/buddybearalex

jepic

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rodrigo.siqueira

remix of d/32316 by u/rodrigo.siqueira

function u(t) {

for(i=150;i--;x.fill())x.fillStyle=R(q=T(i*t)*i*t,r=q/3,q*S(i)),x.beginPath(),x.arc(960+T(k=i*t)*(V=i*C(t*i*i)*S(i)*9),540+C(k)*V,8/t,0,7)

Aug 31 2024 6:43 PM UTC

}// 138/140

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Butterfly symmetry

u/magna

The colors!

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tem

remix of d/32313 by u/tem

function u(t) {

for(i=c.width|=2e3;i--;c.style.filter=`invert(`)x.fillRect(1e3+(j=S(t)-i*1.222)*S(j)/2,540+j*C(j|0)/2,s=i/69,s)

Aug 31 2024 12:41 AM UTC

}// 111/140

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Just explore more pattern

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SockTaters

remix of d/32301 by u/SockTaters

function u(t) {

c.width=w=200
x.font="3em'"
x.fillText("🐠",t%=15,w)
for(i=a=75;i--;c.style.background='#2BC')x.drawImage(c,i,152,1,a,a+t*t*S(t-i/a),9,t,t*t)

Aug 31 2024 12:01 AM UTC

}// 140/140

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Curious #Fish Says Hello

u/aleamb

wonderful!
u/cantelope

related: https://whr.rf.gd/codegolf/?params=/a/283
u/cantelope

also: https://www.dwitter.net/d/1829
u/lewdev

Since when did whr.rf.gd codegolf website exist? It's crazy that I've never seen it before.

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taupelink

remix of d/32245 by u/taupelink

function u(t) {

for(i=600;i--;x.fill())x.beginPath(x.globalAlpha=S(j=i*22/7+t)**4/9/9**t),x.arc(960+(r=i%9*90+120)*C(i),540+r*S(i),120/20**t,j+=i/5,j-6+i%4)

Aug 30 2024 10:34 PM UTC

}// 140/140

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d/32319