Dweets awesomed by u/Agnes

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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Agnes

remix of d/7684 by u/Agnes

function u(t) {

with(x)for(c.width|=i=15;i-->1;)for(j=5;j--;beginPath(),a=6.3/j,arc(960,540,150+25*i,o=i*t-a/2,a+o),lineWidth=2*j+5,stroke());

Apr 16 2018 10:57 AM UTC

}// 126/140

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A slightly more boring version of the previous dweet with colours removed to make the circle segments wrap around each other better. There's probably a way to do colour with this.

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Agnes

function u(t) {

with(x)for(c.width|=i=15;i-->1;)for(j=5;j--;beginPath(),arc(960,540,150+25*i,o=i*t,6.3/j+o),lineWidth=2*j+5,strokeStyle=R(0,40*j),stroke());

Apr 16 2018 10:50 AM UTC

}// 140/140

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Obviously inspired by https://twitter.com/beesandbombs/status/9812…

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Agnes

function u(t) {

T=new Date().getTime()/1e3;for(O=t?O:T,c.width|=i=3,x.scale(10,10);i--;x.fillText(i>1?t:i?M=T-O:f=t?f:0,9,30+30*i));f++;for(j=1e3*~~t;j--;);

Apr 16 2018 8:45 AM UTC

}// 140/140

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Dweet illustrating how t diverges from time reported by getTime() as framerate gets lower. Warning: this dweet intentionally loops for longer and longer, and will probably eventually lock your browser if you have it on screen for 20 minutes.

u/joeytwiddle

T=Date.now()/1e3 to save 10 chars ;-)
u/BuRRak

new Date/1e3 to save 12 bytes actually

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aemkei

remix of d/7651 by u/Agnes

function u(t) {

for(c.width|=i=0;i++<50;x.font=`bold ${5*(i+90)}px Arial`,x.fillText("3D",f=600+(i-20)*2*S(t),f+200))x.fillStyle=R(i<42?0:255,0,0)

Apr 14 2018 6:49 PM UTC

}// 130/140

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u/BirdsTweetCodersDweet

#threed

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Agnes

function u(t) {

for(c.width|=i=0;i++<100;f=1-i/100,x.fillStyle=R(o=255*f,o,o,1-f),x.font=4*i+"px A",x.fillText("Neat text",200*(1+f*S(t)),540+200*f*S(t)));

Apr 13 2018 9:13 PM UTC

}// 139/140

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u/DirtyDan

Neat.

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Agnes

function u(t) {

with(x)for(c.width|=i=M=400;i--;j=i%20,o=i/20,j==19&&beginPath(),lineWidth=5,lineTo(e=M+56*o+10*S(A=i+t),y=200+34*j+10*C(A)),!j|stroke());

Apr 13 2018 11:05 AM UTC

}// 138/140

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Half-assed attempt at Bees and Bombs' curtain thing. Done better by u/BalintCsala

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Agnes

function u(t) {

with(x)setTransform(1,0,0,1,960,540),font="128px A",fillText("🃏",100*S(t/10),0),rotate(Math.PI/10),drawImage(c,-962,-542,1924,1084)

Apr 11 2018 12:24 PM UTC

}// 131/140

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Why is the joker the only card that gets its own emoji?

u/fujimotos

It seems to me that unicode table owns the full deck of cards: http://www.amp-what.com/unicode/search/card
u/Agnes

Interesting! Several of those straight up don't render for me. Only the "black joker" has a colourful emoji representation, the rest are transparent utf-8 ideographs.

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Agnes

function u(t) {

c.width|=0;o=t?o:0|(c.onclick=()=>{o=~~c.t});c.t=60*t;x.font="256px A";x.fillText(String.fromCodePoint(127873+o),832+!o*c.t%3,668+!o*c.t%3);

Apr 10 2018 12:41 PM UTC

}// 140/140

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Previous dweet with shaking added from the characters saved by using onclick; thanks u/prplz.

u/joeytwiddle

Reminds me of the prize box in Crossy Road

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Agnes

function u(t) {

c.width|=0;o=t?o:0|c.addEventListener('click',()=>{o=~~c.t},0);c.t=60*t;x.font="256px A";x.fillText(String.fromCodePoint(127873+o),832,668);

Apr 10 2018 9:52 AM UTC

}// 140/140

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Click the present for your random gift. I wanted the present to move around and shake until you clicked it, but couldn't make it happen with the required function calls.

u/prplz

Golfed c.onclick=z=()=>{c.width|=0;x.font="16em A";x.fillText(String.fromCodePoint(127873+t*60|0),832,668)};t||z()
u/prplz

Ah i just realized that won't allow you to do the movement you wanted, but there are some other tricks there
u/Agnes

Thanks for the onclick tip! That kind of allows me to do the shaking.

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MrRaviex

function u(t) {

c=+s[t*60|0];c>2&&(e=a+S(θ)*5,f=b+C(θ)*5,x.fillRect(a,b,5,5),a=e,b=f)||(θ+=c-1)}{a=b=θ=997;s="3";for(i=0;i<6;i++)s=s.replace(/3/g,32300323);

Apr 8 2018 11:39 AM UTC

}// 140/140

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My first code golf, the Koch Curve

u/MrRaviex

My first code golf, the Koch Curve
u/MrRaviex

Sorry, my comment appears to have duplicated itself...
u/zanella

It's a fractal comment. *rimshot*
u/Xen

#koch

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