Dweets awesomed by u/larzuk

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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pavel

remix of d/14422 by u/KilledByAPixel

function u(t) {

for(i=c.width|=0;j=--i>>5;x.fillRect(i%8*270-Y%2*128-j,Y*140-j-420*h*(h>0),256,128))Y=i%64>>3,h=66-i%64-3*t,x.fillStyle=R(1e3/(4+i%3+j))

Jun 5 2019 6:59 AM UTC

}// 136/140

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#wall #uncompressed

u/KilledByAPixel

All in all, it's just another dweet in the wall.
u/13thptr

amazing

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pavel

remix of d/13492 by u/KilledByAPixel

function u(t) {

for(c.width%=i=3600;i--;x.fillRect(535+S(t)*300+i%9*99+i/9%10*5/a,440+(i/90|0)*5-40/a,6,6))a=1/(1+7**(t-5-S(i*i)-i/500)),x.globalAlpha=a*a

Apr 27 2019 9:29 AM UTC

}// 138/140

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mr #default I don't feel so good #tribute

u/pavel

Awesome idea, I just had to #uncompress it.
u/pavel

#uncompressed
u/KilledByAPixel

Wow, better thenthe original and uncompressed. Damn you pavel.
u/katkip

#thanos is my daddy

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pavel

remix of d/7094 by u/AnnanFay

function u(t) {

for(k=c.width|=q=44;k--;x.fillRect(300*(h>0)*h*S(i=k/q)+q*j,99*h*C(i)+1e3*(h>0||h+1)-j*j%300,3,3))x.fillStyle=R(h=(t+C(j=k%q))%2-1,99,k,1-h)

Mar 5 2019 4:48 AM UTC

}// 140/140

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#improved with fading droplets

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tomxor

function u(t) {

eval(unescape(escape`眽㤰Ⱪ㵬㵷⩷⼵ⱴ㴱⭴⩴⼱㈻景爨砮晩汬剥捴⠰ⰰⱣ⹷楤瑨㵷⨲ⱷ⨲⤻椭ⴻ砮晩汬剥捴⡘⨶ⱙ⨶ⰱ⭋ⰵ⤩堽椥眯㌬夽椯眬䘽琭椯氬䬽ㄭ䘥ㄬ䬪㴨奞堭繆⤯㈷┱⭋⨪㠬砮晩汬却祬攽恨獬⠤筩⨱㈰紬㤹┬⑻䬪㤹紥⥠`.replace(/u(..)/g,"$1%")))

Feb 14 2019 12:46 AM UTC

}// 140/140

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Trinitron #crt #scanline #fractal

u/tomxor

Finally resorted to UTF8. This is a reasonably accurate slow motion aperture grille scanline animation... Although if run very slow you will see it's not simulating 3 electron beams. t=fps (scanline) w=width (subpixels) the later must be a multiple of 3 and 5. Use X, Y and floored F to plugin your own fractal!
u/tomxor

Uncompressed: w=90,i=l=w*w/5,t=1+t*t/12; for(x.fillRect(0,0,c.width=w*2,w*2);i--;x.fillRect(X*6,Y*6,1+K,5)) X=i%w/3,Y=i/w|0,F=t-i/l,K=1-F%1,K*=(Y^X-~F)/27%1+K**8, x.fillStyle=hsl(${i*120},99%,${K*99}%)
u/sigveseb

Kick-ass!
u/C010011012

bypassing the character limit I see using unicode escapements and regex u r very clever

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keithclark

function u(t) {

for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q*q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q

Dec 31 2018 9:44 PM UTC

}// 140/140

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New Year Fireworks

Show more comments…
u/13thptr

elegant :)
u/keithclark

change S(i*.2)*i*q for S(i*t>>4)*i*q for varying firework effects (2 chars over the limit tho)
u/katkip

haha i like the variation
u/JWinslow23

If q will only ever be 0 or 1 (t%2), couldn't this just be for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q? That way, the variation also works.
u/keithclark

I opted for what I had because it held the initial shape in the sky for longer before gravity takes hold. Your version works and if you're happy to trade off the initial shape, you could also drop the \2 and save another 2 chars
u/keithclark

... also q can be any value between 0 and 1
u/JWinslow23

Ah, my mistake, I forgot about floats
u/lionleaf

Nice one! #nye #fireworks
u/iverjo

Beautiful!
u/vain

3... 2... 1... ignition... beautiful firework

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yonatan

function u(t) {

eval(unescape(escape`爽䵡瑨⹲慮摯活景爨畛栽ㄶ崽爨椽㉥㌩⨱攴㭩ⴭ㭸⹦楬汒散琨㜰㐫椥㌲⩨ⰹ㜰⴨椾㸵⤪栬栬栩⥮㵵孩崽爨焽椫⸵⵲⠩簰⤪⡵孱崫畛焫ㅝ⭵孱ⴳ㉝⭵孱ⴳㅝ簰⤪⸴㠬砮晩汬却祬攽刨渪㐬渪㈩`.replace(/u(..)/g,"$1%")))

Dec 2 2018 6:43 PM UTC

}// 130/140

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golfed from https://codepen.io/ge1doot/pen/aQPqXX?editor…

u/yonatan

r=Math.random;for(u[h=16]=r(i=2e3)*1e4;i--;x.fillRect(704+i%32*h,970-(i>>5)*h,h,h))n=u[i]=r(q=i+.5-r()|0)*(u[q]+u[q+1]+u[q-32]+u[q-31]|0)*.48,x.fillStyle=R(n*4,n*2)
u/yonatan

#flame #fire
u/jylikangas

I clicked hot and this appeared. Can confirm Dwitter UI is properly tested.
u/sigveseb

Hot indeed

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jylikangas

function u(t) {

t?i=t*9|0:c.width=-1
r=i<10?C(4/i)*89:i
x.fillStyle=R(r*7,r*3,y=i*9)
x[f='fillRect'](150-r,y,r*2,i-11)
x[f](y-99,i&&98,s=i?-9:1e3,s-y*y%49)

Nov 30 2018 4:12 PM UTC

}// 139/140

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We built this city on synthwave

u/magna

Whoa!
u/aleamb

wow!!!
u/aleamb

#city #landscape #stylish #eighties
u/aleamb

#waitforit
u/katkip

Awesome

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jylikangas

function u(t) {

for(c.width=-1,i=99;i--;x.fillRect(i*9,99,9,S(i+t*5^9)*20-40))x[F='fillText']("€>",50,y=20+S(t)*7),x[F]("──",50+t%2*400,y),x[F]("¥",y*9,9+y)

Nov 24 2018 8:35 PM UTC

}// 140/140

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Dwitter Defender

u/magna

Awesome!
u/katkip

That's too awesome.
u/joeytwiddle

#game #tribute

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pavel

remix of d/10939 by u/veubeke

function u(t) {

for(c.width=2*(n=i=300);--i;x.fill(new Path2D('M0 2C8-5,8 8,0 0')))z=4/(2+C(A=t*i/n+i*i)),x.setTransform(C(A)*z,0,0,z,S(A)*99*z+n,i*i%n+9*z)

Nov 12 2018 1:04 AM UTC

}// 140/140

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u/iverjo

#fish

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yonatan

function u(t) {

t?f=frame:w=c.width=568
for(X=w;X--;x.fillRect(X,320-f,1,.3-m))for(v=f/320+.4,u=X/w*2-1,i=33;i--;v=b**.5/m-.1)a=m=u*u,m+=b=v*v,u=a**.5/m-.2

Nov 8 2018 9:52 PM UTC

}// 140/140

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Unreal mountain - ported from https://www.shadertoy.com/view/MtVfzR

u/magna

Wow!
u/katkip

Indeed wow!
u/iverjo

Impressive #fractal

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