Dweets 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.

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

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sfz

remix of d/1925 by u/p01

function u(t) {

t/=9
c.style.background='#27a'
for(c.width=i=210;H=u[i]=u[i]||Math.random()*5,i--;)x.fillText([...'🐟🐠🐡🐙👾'][~~H],X=i*T(H-t),i*C(i)-S(X))

Mar 7 2017 9:30 AM UTC

}// 135/140

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u/SpecialAgent

Anybody knows which font I need to display these characters? :)
u/sfz

They're all in this unicode block: http://www.unicode.org/charts/PDF/U1F300.pdf
u/iverjo

#fish

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sfz

function u(t) {

I=S(t)
O=C(t)
a=Math.sqrt(4e5/t)
b=4*a/5
for(i=9;i--;)x.fillStyle=`hsl(${t*b/i},66%,66%)`,x.fillRect(500+i%3*2*a+a*O-b*I,i*199+a*I+b*O,a,b)

Mar 7 2017 12:02 AM UTC

}// 139/140

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Lituus spiral

u/Constantin

Oh good old Win XP

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sfz

function u(t) {

x.fillStyle=`hsl(${9*t},66%,66%)`
t=t/6+1
P=(U=(V=(W=2+t)+1)+3)+5
X=960+640*S(W*t+V)+320*S(V*t+U)
Y=500+500*S(U*t+P)
x.fillRect(X,Y,W,W)

Mar 6 2017 7:37 PM UTC

}// 136/140

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Harmonograph

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sfz

function u(t) {

c.width|=w=960
h=540
with(x){f=(X,Y)=>{for(i=h;i--;)beginPath(),arc(w*X+w,h*Y+h,i*6,0,7,0),stroke()}
s=S(t)
d=C(t)
f(-s,-s)
f(s,d)
f(-d,s)}

Mar 6 2017 5:15 PM UTC

}// 139/140

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Moiré

u/SpecialAgent

Nice!

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sfz

function u(t) {

s=42
for(i=2e3;i--;)x.fillStyle=`hsla(${t*i},99%,50%,.2)`,x.fillRect(i+i%s*99*C(i/s-t)-1e3,i+s*S(i+t)-3*s,s,s)

Mar 5 2017 9:10 PM UTC

}// 110/140

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Psychedelic Flow

u/sfz

No idea what to do with the extra bytes
u/sigveseb

add more colors? :P
u/sfz

K, just updated it with IR and UV
u/iverjo

Color party! :D

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sfz

remix of d/1839 by u/sawaxon

function u(t) {

A=p=>p>0?p:-p
m=49
l=40
for(j=l;j--;)for(i=l;i--;)x.fillStyle=R(l*A(S(t-j)+i/6),S(t/j)*l*j/(i/9+1),m*S(i)*C(t)+9*j),x.fillRect(i*m,j*m,m,m)

Mar 3 2017 7:25 PM UTC

}// 139/140

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u/donbright

very chilled out

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sfz

remix of d/1796 by u/sfz

function u(t) {

c.width|=0
z=~~(t/3)
for(m=7;m>0;m-=.001)X=940*(1+S((z%9+2)*m+t/3)),Y=504*(1+S((z%9+1)*m)),x.fillStyle=R(255*C(m+t*5)),x.fillRect(X,Y,24,24)

Mar 3 2017 1:45 AM UTC

}// 140/140

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sfz

function u(t) {

z=~~(t/3+1)
l=255
for(m=7;m>0;m-=.003)X=940*(1+S((9*z%7+1)*m+t)),Y=504*(1+S((7*z%9+1)*m)),x.fillStyle=R(0,l*C(m),l*S(m)),x.fillRect(X,Y,6,6)

Mar 2 2017 8:42 PM UTC

}// 140/140

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u/SpecialAgent

Very nice!

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sfz

remix of d/1727 by u/SpecialAgent

function u(t) {

if(!t)c.width=w=896;for(z=t*60,Y=448,X=(z>>0)%w,h=X/12;Y--;)x.fillStyle='hsl('+(X&Y?z-Y+','+h:X+Y+z+','+(99-h))+'%,48%)',x.fillRect(X,Y,1,1)

Mar 2 2017 1:08 AM UTC

}// 140/140

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u/sigveseb

those colors!
u/SpecialAgent

nicely done!
u/SpecialAgent

nicely done!
u/donbright

super

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sfz

remix of d/672 by u/aemkei

function u(t) {

for(c.width=874,b=[d=this.b||0],i=5e3;i--;x.fillText(b[i]=d?a==3|d[i]&a==2:i%7%2,i%96*9,i/9))for(a=0,j=5;e=93*(2<j--)+j;)a+=d[i+e]+d[i-e]

Mar 1 2017 7:18 PM UTC

}// 137/140

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Life in Bits

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