Dweets awesomed by u/jonathan-potter

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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MingusDew

function u(t) {

c.width*=1;nn=27*S(t*2);for(i=960;i--;){p=0;for(n=1;n<nn;n+=2)p+=S(n*i*0.00657)/n;x.lineTo(10+2*i,540-480*p);}x.lineWidth=5;x.stroke();

Jan 21 2019 6:17 AM UTC

}// 135/140

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u/joeytwiddle

#math #fourier
u/katkip

Nice

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katkip

remix of d/11741 by u/katkip

function u(t) {

c.width^=0;for(i=800;i--;)x.lineTo(960+S(i*S(i)+t/9)*500,540+C(i*S(i)+t/9)*500);x.fill()

Jan 11 2019 2:46 PM UTC

}// 88/140

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#earth planet

u/13thptr

woah
u/username

does not look like earth though
u/joeytwiddle

It does look like a #planet though. Cool effect for 88
u/katkip

That line in the middle looks a bit like Rusia
u/magna

Awesome technique! You could potentially add a way to "seed" the generation with a number and then search for a seed that resembles the Earth the most using brute-force.

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keithclark

remix of d/11328 by u/keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,k=r>>8,k))r=900/(4-(t+j/13)%4)

Dec 7 2018 11:15 AM UTC

}// 98/140

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Golfed down to 98 bytes

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u/keithclark

Also fixes some glitches in the original
u/keithclark

swap ,k=r>>8,k for ,r>>=8,r to save a byte (97)
u/keithclark

also r=900/(4-(t+j/9)%4) => r=j/(4-(t+j/9)%4) (94)
u/iverjo

Very nice #starfield
u/keithclark

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-(t+j)%7) (92)
u/jylikangas

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-t++%7)(90)
u/keithclark

nice!
u/keithclark

for(x.fillRect(0,0,j=2e3,j);r=j--/(7-t++%7);)x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r) (89)
u/jylikangas

Yes!
u/vain

very nice!
u/384.cz

#starfield

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pavel

remix of d/11314 by u/pavel

function u(t) {

for(x.fillRect(j=11,0,2e3,2e3);k=20*--j;)for(i=241;i--;)x.clearRect(i*(8-j/6)+k,600-k-300/j*S(i*(2*j-1)/76.4)*S(j*t),s=12-j,s)

Dec 6 2018 8:47 AM UTC

}// 126/140

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Standing waves #beesandbombs

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cantelope

remix of d/2948 by u/cantelope

function u(t) {

eval(unescape(escape`景爨琪㴲ⱸ孨㴧晩汬剥捴❝⠰ⰰⱩ㵣⹷楤瑨簽〬椩Ⱨ㵩⼲㭩ⴭ㭸⹦楬汓瑹汥㵠桳氨⑻椭琪杽ⰹ㤥ⰷ㔥怬硛桝⡧⭬⩓⡴⤪术娬㔴〫䌨瀩⩩⽚⩧ⱳ㴲攸⽚⽚ⱳ⤩氽匨瀽椪㈮ㄫ琪⡪㵩㰱攳㼭㈺ㄩ⤪椬娽未㐮㔭氪䌨琩⩪`.replace(/u(..)/g,"$1%")))

Dec 5 2018 6:06 PM UTC

}// 140/140

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u/magna

So pretty!

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katkip

remix of d/11305 by u/katkip

function u(t) {

t||x.translate(960,540);x.rotate(1.57);x.fillRect(0,500,5,20),x.fillStyle=R(128+T(t),128+C(t)*99,128+S(t*3)*99);x.drawImage(c,0,0,2e3,1e3)

Dec 5 2018 3:04 PM UTC

}// 138/140

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Looking at this saved me from suicide

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u/firegodjr

Insanely cool
u/magna

Wow! This is rich. #keepsongiving And I also hope you're feeling OK (re: the suicide comment, that should never be overlooked.)
u/katkip

I am pretty retarded, sorry :'}
u/metamero

@magna thanks for your precise words!!
u/metamero

an @katkip I'm your fan <3 <3
u/donbright

reach out if you need it, 1-800-273-TALK (8255)
u/joeytwiddle

#kaleidoscope
u/katkip

number #1 in top, 10 dec 2018, yay
u/katkip

(weekly)
u/13thptr

very good, especially in fullscreen
u/KilledByAPixel

beautiful
u/lars-erik

138 bytes doesn't get better than this! 🤯❤

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jonathan-potter

remix of d/11298 by u/jonathan-potter

function u(t) {

for(c.width|=f=i=1920;i--;x.fill(p=new Path2D,p.arc(X,Y,20*(a=S(Z+9*t))*a,0,7)))o=i*i/f,v=o*i,X=(v+100*t*C(o))%f,Y=(v*i+100*t*S(o))%f,Z=v*v

Dec 5 2018 1:07 AM UTC

}// 140/140

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more bubbles

u/katkip

#cells
u/iverjo

#dots

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jonathan-potter

function u(t) {

c.width|=f=i=1920
for(;i--;) {
  v=i*i*i/f
  X=v%f
  Y=v*i%f
  Z=v*v
  p=new Path2D
  p.arc(X,Y,20*Math.abs(S(Y+t)),0,7)
  x.fill(p)
}

Dec 5 2018 12:19 AM UTC

}// 134/140

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bubbles

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jonathan-potter

remix of d/11257 by u/yonatan

function u(t) {

r=Math.random;for(u[h=16]=r(i=9e3)*i;i--;x.fillRect(i/2,i%32*h,h,h))x.fillStyle=R(n=u[i]=r(q=i+r()-.3|0)*(u[q]+u[q-32]+u[q-31])/1.5|0,n/2)

Dec 4 2018 1:18 AM UTC

}// 138/140

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#fire changed some things stylistically to fit

u/iverjo

Very nice!
u/Qwitter

Cool NES Vibes! Awesome!

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anotherkitten

remix of d/11195 by u/anotherkitten

function u(t) {

if(!t)b=Array(c=1e6).fill(-1),a=i=0,m=Math.PI;if(a<c)b[a]=1,a+=d=a-++i<0?i:b[a-i]*i,x.arc(a-d/2,540,i/2,g=m*(i&1),g+m),x.stroke()

Nov 29 2018 3:29 PM UTC

}// 129/140

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recaman's sequence over time

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