Dweets awesomed by u/LeslieOA

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: #Opposites

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and3k5

function u(t) {

c.width^=0
x.font="10em s"
s=t*100;
w=1720
h=880
x.fillText("📀",Math.abs(s%w*2-w),150+Math.abs(s%h*2-h))

Nov 13 2018 6:18 AM UTC

}// 104/140

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waiting for that disk to hit the corner perfectly

u/pavel

I wish I could click it and it split into two :)
u/sigveseb

Haha nice
u/joeytwiddle

#bounce

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and3k5

function u(t) {

x.font='30em sans-serif'
z=t*100;
x.fillStyle=R(z%255,z*2%255,z*3%255,0.5)
x.fillText("And3k5",100,560)
x.drawImage(x.canvas,1,0,1918,1078)

Nov 13 2018 5:35 AM UTC

}// 139/140

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My name in weird 3d

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logistikalism@gmail.com

function u(t) {

t*=Math.random()
x.arc(960,540,540-t,t,t-90)
x.stroke()
throw t

Nov 12 2018 2:04 AM UTC

}// 63/140

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pavel

function u(t) {

p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i]
for(c.width|=t%=i=8,x.rotate(.8);i--;m+7&7&&x.fillRect(p(m?i:t)+904,p(m?6-i&7:8-t)-460,90,90))m=~~t-i

Nov 10 2018 7:44 AM UTC

}// 140/140

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This really wants to be faster but I'm out of bytes!

Show more comments…
u/jylikangas

This is challenging stuff!
u/Xen

137: p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i] for(x.rotate((c.width|=t%=i=8)/9);i--;m+7&7&&x.fillRect(p(m?i:t)+904,p(m?6-i&7:8-t),90,90))m=~~t-i
u/jylikangas

Full speed 138: p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i] for(c.width|=i=8,x.rotate(7);i--;m+7&7&&x.fillRect(p(m?i:T=t*5%8)+700,p(m?6-i&7:8-T),90,90))m=~~T-i
u/pavel

Nice! There is some flicker but you saved enough bytes to fix p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i];for(c.width|=i=8,x.rotate(7),T=8*t%8;i--;m+7&7&&x.fillRect(p(m?i:T)+450,p(m?6-i&7:8-T),90,90))m=~~T-i
u/jylikangas

This was fun. I also tried two totally different implementations but it seems your approach is the best.
u/katkip

Haha that's fun

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rodrigo.siqueira

remix of d/10900 by u/pavel

function u(t) {

for(c.width=840,s=300;s-=12;)
for(t+=.15,Q=t%4,i=6;i--;)
x.lineTo(400+s*S(A=(Q*(Q<1)+i)*1.57),25+s/2*(C(A)+2))
x.stroke()

Nov 9 2018 2:37 AM UTC

}// 121/140

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Spinning pyramid

u/katkip

That looks awesome
u/katkip

#pyramid

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pavel

remix of d/9174 by u/f8f82804

function u(t) {

with(x)for(N=i=300;A=S(a=i--/99);beginPath(fillStyle=`hsl(${i*N} 90% ${c**4}%`))c=A*S(b=t+i)+2,fill(arc(N*c,N*(A*C(b)/2-C(a)+2),70*A+9,0,7))

Nov 8 2018 11:00 PM UTC

}// 140/140

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u/katkip

I like the fact that it is so fast
u/iverjo

Nice! This reminds me of the spinning beachball of death (on Mac OS X)
u/aleamb

#colors #d3 #sphere
u/pavel

#uncompressed

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f8f82804

remix of d/10907 by u/f8f82804

function u(t) {

c.width=640;for(s=99;s--;x.beginPath(x.stroke()))for(i=5;i--;x.lineTo(320+3*S(A)/z,(2+C(A)/2)/z))z=(3-C(A=1.571*(t/3+i)))/3/s

Nov 8 2018 8:41 PM UTC

}// 125/140

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#d3 #perspective #wireframe #pyramid #moire

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BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴹㭩ⴭ㭸⹴牡湳景牭⡫㴮㘲⩃⡡㵓⡴⤪ㄮ㔷⤬猽⸶㈪匨愩Ⱝ猬欬眬眩⥸⹲散琨ㄬㄬ砮汩湥坩摴栽眽㌰〬眩ⱸ⹱畡摲慴楣䍵牶敔漨⡺㴱㔰⤫匨琩⩺ⱺⵓ⡴⤪稬眬眩㭸⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 7:58 PM UTC

}// 131/140

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Fibonacci spiral

u/katkip

Owwww woottt thats awesome
u/rodrigo.siqueira

SOURCE CODE: for(c.width|=i=9;i--;x.transform(k=.62*C(a=S(t)*1.57),s=.62*S(a),-s,k,w,w))x.rect(1,1,x.lineWidth=w=300,w),x.quadraticCurveTo((z=150)+S(t)*z,z-S(t)*z,w,w);x.stroke();
u/rodrigo.siqueira

Animated Golden Rectangle #Fibonacci Sequence
u/vain

very cool golden ratio / rectangle fx. (never seen before like this, great!)

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yonatan

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴵ㄲ㭩ⴭ㭸⹦楬汒散琨㤶〫瀮砪瀮眬㔴〫瀮礪瀮眬瀮眬瀮眩⥰㵮敷⁄位䵡瑲楸⡛⸮⸧㌰〰〳〰〰㌵〰〰❝⤮牯瑡瑥䅸楳䅮杬攨琬琬〬琪㤹⤮瑲慮獦潲浐潩湴⡮敷⁄位偯楮琨椾㸶☷Ⱪ㸾㌦㜬椦㜩⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 10:26 AM UTC

}// 140/140

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for(c.width|=i=512;i--;x.fillRect(960+p.x*p.w,540+p.y*p.w,p.w,p.w))p=new DOMMatrix([...'3000030000350000']).rotateAxisAngle(t,t,0,t*99).transformPoint(new DOMPoint(i>>6&7,i>>3&7,i&7));

u/katkip

This is nice
u/iverjo

Cool!
u/katkip

#transpose

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pavel

function u(t) {

for(c.width=640,s=145;s-=5;)for(t+=.05,Q=t%4,i=17;i--;)x.lineTo(320+s*S(A=(2*Q*(Q<1)+i-(i>>2))*1.571),180+5/8*s*(C(A)+1-(i&4)/2));x.stroke()

Nov 8 2018 4:55 AM UTC

}// 140/140

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u/DataMeta

Very cool

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