Dweets awesomed by u/trupples

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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laynehobby

function u(t) {

c.width=y=m=256
a=C(t)
for(;y--;)x.fillStyle=R(y*a||m,(y?m-y:m)*a,y&&m*a),x.beginPath(),x.arc(128,y?y-1e3:m-m*a,y?1e3:50,y&7,8),x.fill()

Jan 4 2018 6:29 AM UTC

}// 137/140

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u/magna

Great!
u/Xen

very nice
u/laynehobby

thanks!
u/iverjo

Nice colors!
u/M1T0

cool idea
u/joeytwiddle

#sunset

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jbl

remix of d/5314 by u/jbl

function u(t) {

c.width|=i=300
x.lineWidth=.1
while(--i)q=19+S(t/6)/28*i,x.arc(S(q/3)*i+q*60,(C(q*S(t/2))+4)*i/2+200,(C(q)*60+200)*S(i/96),0,7)
x.stroke()

Jan 4 2018 2:37 AM UTC

}// 138/140

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Show more comments…
u/magna

Nice!
u/nystrand

cool!
u/rikardlindstrom

love it!
u/iverjo

It looks organic
u/lionleaf

#balloon #organic #floppy
u/leonarven

Damn that looks impressive, still such simple! :)
u/skeletonNatte

Somehow pretty unsettling

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BackendForth

function u(t) {

c.width=1920
for(i=0;i<1920;i+=4)
{s=i/99-t*4%27+5
w=Math.pow(2,-s*s)*99+9
x.fillRect(i,540-w/2+S(i/43)*9+(i>960?i/2-480:0)*(i%8?1:-1),8,w)}

Jan 4 2018 1:11 AM UTC

}// 140/140

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u/justinwzig

This rocks
u/magna

Awesome!
u/lurifax

Smooth!
u/sigveseb

Niiice
u/jbl

beautiful!
u/Bugsy

Golfed and slightly cleaned at https://www.dwitter.net/d/5543. Have fun with the extra characters!
u/Bugsy

(cleaned is referring to some slight blockiness on the right side of the animation, not the code. My code is much uglier :P)
u/BackendForth

Neat! TIL Javascript accepts python notation for exponents.
u/ETHproductions

Golfed even further at https://www.dwitter.net/d/5601. Now there's 30 extra chars to play around with :-)
u/mohd-akram

I was expecting it to open like a zip :D
u/lionleaf

#feynman #feynman_diagram #organic #quantum_field_theory
u/lionleaf

#zip
u/rodrigo.siqueira

Neural sign propagating through axon terminals
u/rodrigo.siqueira

#neural
u/rodrigo.siqueira

#neuralnetwork

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aemkei

remix of d/5293 by u/Xen

function u(t) {

for(c.width|=i=h=999;i--;)x.fillRect(h+h*(2e5-(i-500)**2)**.5/h*S(t+i),i,9,9)

Jan 3 2018 9:50 PM UTC

}// 77/140

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u/iverjo

Wow, only 77 characters
u/iverjo

#sphere

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veubeke

function u(t) {

t*60&127?0:T=[0,L=.001]
S=[c.width^=0]
T.map((_,i)=>S[i*2-1]=(_+T[i-1])/2+(Math.random(x.fillRect(i,540-_,2,S[i*2]=_))-.5)/L)
T=L<2?S:T
L*=2

Jan 3 2018 8:09 PM UTC

}// 140/140

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Simple terrain generation using midpoint displacement

u/iverjo

Nice alternative to perlin noise!
u/sigveseb

Very nice! And with the horizontal flat line we can pretend that is the sea level; everything above is a mountain and everything below is the sea :)
u/iverjo

#random

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lowpoly

function u(t) {

for(y=c.width=c.height=n=80;y--;)for(z=n;z--;)x.fillRect(z,y,1,1,x.fillStyle=((Math.sqrt(z*z+y*y))^(Math.atan2(y,z)*n+t*n))&8?'#4a8':'#445')

Jan 3 2018 6:44 PM UTC

}// 140/140

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Experimenting with a "classical" formula

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hoplite

function u(t) {

t=C(t*9)*255
x.fillStyle=R(t+30,t,t+99,.1)
x.fillRect(C(t)*9+954,S(t)*9+534,9,9)
x.drawImage(c,-48,-27,2016+S(t),1134+C(t))

Jan 3 2018 12:18 PM UTC

}// 124/140

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u/Xen

nice, reminds me of Dr.Who
u/joeytwiddle

the theme tune was playing in my head as I read Xen's comment!

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squeakbat

function u(t) {

c.width=1920
r=30;g=130;b=0
for(i=90;i;){
 x.fillStyle=R(r,g,b,.7)
 d=r;r=g;g=b;b=d
 x.fillRect(940+S(t*i/9)*900,520+C(t*--i/9)*i*6,40,40)
}

Jan 3 2018 8:01 AM UTC

}// 140/140

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travisdoesmath

function u(t) {

_=(a,n)=>(a>>n)%2
for(i=0;i<213;i++)for(j=0;j<120;j++)(_(i,3)||_(j,3))&&_(i+j,2)^_(i,3)||_(i,3)*_(j,3)==1?x.fillRect(i*9,j*9,9,9):0

Jan 3 2018 7:33 AM UTC

}// 131/140

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I spent about a full day trying to figure out a bitmappy way to make a houndstooth pattern, but I couldn't get it under 140 characters! Decided to go the boolean logic route instead.

u/travisdoesmath

previous attempt (158 chars): p=[8,4,2,1,9,13,15,16,273,2321,3345,3857,4113,2065,1041,529].map(_=>_*15) for(i=0;i<213;i++)for(j=0;j<120;j++)(p[j%16]>>(i%16))%2==0?x.fillRect(i*9,j*9,9,9):0
u/trupples

Nice one!
u/RomanW

I just posted remix #5365. I've been experimenting with converting UTF characters to binary data. See also my other dweets :)

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0utdacious

function u(t) {

for(!t?f=q=z=r=i="3":x.fillRect(a+=i=(d=q[z++]-2)*r,b+=r=-d*y,6,6);y=i,f++<17;b=a=500)q+=z+[...q].reverse().map(w=>~w+5).join('')

Jan 3 2018 6:42 AM UTC

}// 129/140

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Dragon Curve Fractal

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