Dweets awesomed by u/sfz

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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magna

remix of d/1289 by u/magna

function u(t) {

e=1e4;(i=new Image).src=c.toDataURL('image/jpeg',q=.8).replace(eval(`/(.{${t%e+e}})./`),'$1a');x.globalAlpha=q;x.drawImage(i,0,3,1920,1070);

Feb 25 2017 2:58 PM UTC

}// 140/140

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Island at Night (wait until it stabilizes - works only on Chrome)

u/sigveseb

this is an excellent idea!

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gormisdomai

remix of d/1311 by u/gormisdomai

function u(t) {

c.width^=0;
for(s=0;s<200;s+=.01){
X = (T(t)*s+7)*C(s+t)
Y = (C(t)*s+7)*S(s+t)
x.fillStyle=R(99^s,s,s)
x.fillRect(960+X*30, 540+30*Y, X, Y)}

Feb 25 2017 2:44 PM UTC

}// 140/140

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"Space Folding #2"

u/katkip

#tagfail

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Pyrofoux

function u(t) {

x[f="font"]=g="140px A",n=Array(9).join(0/0);7-(t=~~t%8+1)?x[h="fillText"](n,0,t<<8)+(5-t||x[h]("🦇",874,560,c.width^=0,x[f]=g)):c.width^=0

Feb 25 2017 2:41 PM UTC

}// 138/140

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Show more comments…
u/iverjo

Haha, I believe this is a reference to "wat" ^^
u/andres

Is this broken because of the emoji?
u/kaicarver

NaNNaN NaNNaN NaNNaN NaNNaN BATMAN!! :-) https://youtu.be/EtoMN_xi-AM
u/iverjo

3:31 in this video: https://www.destroyallsoftware.com/talks/wat
u/sigveseb

:D
u/Kalanchoe

Haha, nice reference! For those who see boxes, it's supposed to be a bat emoji (U+1F987)
u/d0n.key

I actually wanted to type "BATMAAAAN!!!" in the comments, but jokes on me...

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Niklas

function u(t) {

for(c.width|=0,m=960,o=540,q=99,i=q;i--;)for(a=6.28*i/q+t,k=m+C(a)*o,l=o+S(a)*o/2,j=q;j--;)b=6.28*j/q,x.fillRect(k+C(b)*q*C(a),l+S(b)*q,3,3)

Feb 25 2017 2:21 PM UTC

}// 140/140

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u/iverjo

Nice :) Can we make it look more like 3D?
u/Niklas

thx! i'll try :)
u/Niklas

here we go: https://www.dwitter.net/d/1344

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gormisdomai

function u(t) {

c.width=1920;
for(s=0;s<2000;s+=.1){
X = (0.1*T(t)*s+10)*C(s+t)
Y = (0.1*C(0.5*t)*s+10)*.8*S(s+t)
x.fillRect(960+X*30+t, 540+30*Y+t, X, Y)}

Feb 25 2017 2:12 PM UTC

}// 139/140

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"Space Folding #1"

u/Kalanchoe

amazing!
u/iverjo

+1 for the unexpected implosion

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AJK

function u(t) {

t||(P=1e3,Q=540,A=.31,C=1.38,X=12,Y=0,x.fillStyle=R(0,0,0,.1));for(k=P;k--;)x.fillRect(50*X+Q,50*Y,1,1),Z=X,X=Y+A*X+C*X*X/(1+X*X),Y=t/5-3-Z

Feb 25 2017 1:34 PM UTC

}// 139/140

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SpecialAgent

function u(t) {

w=960,h=540,x.strokeStyle=R(255*T(t*t),255*S(t),255*C(t),0.03)
x.strokeRect(w+S(t)*w,h+C(t)*h,10,10)
x.drawImage(c,S(t),-C(t>>10),w*2,h*2)

Feb 25 2017 9:50 AM UTC

}// 138/140

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Just messing around

u/5Mixer

Nice, looks super smooth, like paint. I need to mess around with not clearing the screen more :)

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sfz

remix of d/1283 by u/sfz

function u(t) {

for(w=256,z=w/4,c.width=w,i=0;i<w;i+=5)for(j=0;j<z;j+=7)y=S(i*j+T(t/7)),x.fillStyle=R(w-i*y,0,j),x.fillText('✹',z+z+i*y*T(t+j),z+j*y*C(t+j))

Feb 25 2017 5:34 AM UTC

}// 140/140

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hamptonio

remix of d/134 by u/icecuber

function u(t) {

r=Math.random;q=1;for(i=36;i--;)for(j=12;j--;)q+=.5-r()/2,x.setTransform(C(t+j),S(t+i),-S(t+j),C(t+i),i*66,j*99),x.fillRect(-9,-30,q/2,10)

Feb 25 2017 4:06 AM UTC

}// 138/140

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u/magna

I want a curtain like this in my living room!
u/joeytwiddle

That took me to http://www.pouet.net/prod.php?which=564#fukw…

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sfz

function u(t) {

for(w=191,c.width=w,i=0;i<w;i+=6)for(j=0;j<w;j+=9)a=String.fromCharCode(10304+Math.random()*w),x.fillStyle=R(j,w*S(t),i),x.fillText(a,i,j)

Feb 25 2017 1:58 AM UTC

}// 138/140

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u/donbright

OHHhh man !!! brilliant!

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