Dweets awesomed by u/loni_art

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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anotherkitten

function u(t) {

t=S(t)*1.7;for(c.width|=j=0;j++<9;)for(h=5;h-->-4;)for(i=5;i-->-4;x.fillRect(958+h*m*t-j*4,538+i*m*t-j*4,m+4,m+4))m=8*j,x.fillStyle=R(m,m*2)

Nov 13 2018 4:10 AM UTC

}// 140/140

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diced

u/aleamb

amazing!
u/joeytwiddle

Nice! Small tweak, just swinging left and right: for(c.width|=j=0;j++<9;)for(h=5;h-->-4;)for(i=5;i-->-4;x.fillRect(958+h*m*2-j*4+m*9*S(t),538+i*m*2-j*4,m+9,m+9))m=8*j,x.fillStyle=R(m,m*2)

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pavel

function u(t) {

with(x)for(k=n=j=255;j--;k=2,fill())for(beginPath(fillStyle=R(T=(t^k)%2*128,T,i=4));i--;)arc((j%9-t%1)*n+T,(j>>4)*n+T,64*k,a=(i-t%1)*11/7,a)

Nov 13 2018 2:29 AM UTC

}// 140/140

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u/yonatan

arc?!
u/anotherkitten

oh you sly dog very well done
u/pavel

:)
u/jylikangas

Very cool! You can save 3 bytes by removing the unnecessary %1 from t when calculating a and also doing <<7 instead of *128. If someone is wondering how this works using a+1 instead of a at the end may help. :)
u/katkip

#beesandbombs
u/pavel

Removing %1 at the end breaks the animation on my iPhone.

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veubeke

function u(t) {

x.shadowBlur=200+S(t)*160
for(i=12;i--;x.fillRect(960-w/2,540-h/2,w,h))x.shadowColor=`hsl(${S(t/2-i/9)*200%360},99%,50%)`,w=178*i-20,h=100*i

Nov 12 2018 8:43 PM UTC

}// 140/140

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u/joeytwiddle

Launch when ready

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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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pavel

remix of d/10939 by u/veubeke

function u(t) {

for(c.width=2*(n=i=300);--i;x.fill(new Path2D('M0 2C8-5,8 8,0 0')))z=4/(2+C(A=t*i/n+i*i)),x.setTransform(C(A)*z,0,0,z,S(A)*99*z+n,i*i%n+9*z)

Nov 12 2018 1:04 AM UTC

}// 140/140

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u/iverjo

#fish

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cantelope

remix of d/10928 by u/pavel

function u(t) {

eval(unescape(escape`砮晩汬剥捴⠰ⰰⱶ㵣⹷楤瑨㴲㤰ⰱ㘳⤻瀽椽㸳㔪嬰ⰰⰳ⵩ⰱⰶ⵩ⰲⱩⴵⱩⴷ嵛繾楝㭦潲⡴⨽㘬琥㵩㴸ⱸ⹲潴慴攨⸷㠵⤻椭ⴻ洫㜦㜦♸⹣汥慲剥捴⡰⡭㽩㩴⤫ㄱ㔬瀨洿㘭椦㜺㠭琩ⴱ〵ⰳ㈬㌲⤩洽繾琭椻`.replace(/u(..)/g,"$1%")))

Nov 10 2018 5:45 PM UTC

}// 135/140

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@pavel, if you ever find that you just can't get it working within 140b, you have 2 options, the handy compressor @ d/9207, or there's also https://codegolf.tk which allows up to 1kb with bonus cred for getting under 512 or 140.. full disclosure, i run codegolf.tk. brilliant work btw. :)

u/prplz

third option: keep trying all day
u/cantelope

@prplz, of course. how stupid of me. obviously i was advocating giving up easily.

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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!

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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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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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joeytwiddle

remix of d/8288 by u/joeytwiddle

function u(t) {

for(c.width|=k=512;k--;x.fillRect(960-W-12*j*C(a=t+i*17),960-j*(p=i+4*S(a)),2*W,p))i=k>>5,j=k%32,x.fillStyle='#fc74',W=99*S(j/10)

Nov 7 2018 5:25 AM UTC

}// 129/140

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An orange flower for Diwali

u/joeytwiddle

#flower #diwali https://en.wikipedia.org/wiki/Diwali
u/aleamb

coool

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pavel

remix of d/10875 by u/pavel

function u(t) {

x.rotate(!t*Math.PI/4);for(i=24;i--;)for(j=28;j--;x.fillRect(i*99+d-250,j*99-2e3+d,99,99))x.fillStyle=R(a=(i+j)%2*256,a,a),d=T(i*j/99+t/9-1)

Nov 7 2018 1:08 AM UTC

}// 140/140

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Rain

u/katkip

What rain lol

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