Dweets awesomed by u/Joachim

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: #Food

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pavel

function u(t) {

for(i=c.width|=0;j=i-->>5;x.arc(98*(28-k*63+i%32*(4*k-2)+(j|t)%2+t%1/2+(.5-j%2)/(1+9e9**(j/9-t%1))),(j-k)*170,98,3*!k,3*k))k=i>>4&1
x.fill()

Nov 29 2018 12:18 AM UTC

}// 140/140

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MORE disks >:) #beesandbombs

u/anotherkitten

stop being so good
u/katkip

i love your beesandbombs dweets
u/pavel

I call fill just once, the black bits are a single connected shape that zig-zags, the messy edges are hidden offscreen.
u/pavel

I use 1/(1+9e9**x) to smooth step but even rows step twice in one cycle which is done by adding (j|t)%2 as offset.
u/pavel

In hindsight ~~x+(x%1)**9 is better for multi-smooth-step animations.

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jylikangas

function u(t) {

with(x)for(i=1;i++<32;beginPath(fill()))for(j=8;j--;arc(X=960-C(t)*250,X/2,2e3/(i-t*8%2),a=133*j,a))fillStyle=R(v=i%2*64,i*9*S((t%7)**2),v)

Nov 27 2018 4:14 PM UTC

}// 139/140

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There is a light at the end of a tunnel

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metamero

remix of d/11172 by u/metamero

function u(t) {

eval(unescape(escape`挮睩摴栽ㄹ㈰㭣⹳瑹汥⹢慣歧牯畮搽✣㤹㤧㭦潲⡰㴮㔻瀼㤹㬫⭰⥦潲⡱㴰⸵㭱㰹㤻⬫焩睩瑨⡸⥢敧楮偡瑨⠩ⱡ牣⡲㵰⨹㤬猽焪㤹ⰱ㌬〬㜩ⱦ楬汓瑹汥㴧⍦晦✬晩汬⠩ⱦ楬汓瑹汥㵒⠩ⱦ楬汒散琨爭㤱ⱳⴹㄬ㠳ⰸ㌩`.replace(/u(..)/g,"$1%")))

Nov 27 2018 12:01 PM UTC

}// 140/140

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Find the Black Dots - Scintillating Grid Illusion

u/metamero

c.width=1920;c.style.background='#999';for(p=.5;p<99;++p)for(q=0.5;q<99;++q)with(x)beginPath(),arc(r=p*99,s=q*99,13,0,7),fillStyle='#fff',fill(),fillStyle=R(),fillRect(r-91,s-91,83,83)
u/metamero

#OpticalIllusion #Scintillating #Grid #Illusion
u/katkip

#illusion
u/metamero

#ScintillatingGridIllusion

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jylikangas

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡡牣⠭㤬樽㌬眽挮睩摴栽㌰〬〬㘩㭪ⴭ㬩景爨椽㄰㭩ⴭ㭢敧楮偡瑨⡦楬氨慲挨堽㤹⭓⡡㴮㜹⩩⬹㔭琥ㄯ⸶⨡⡴☳⵪⤩⩲ⰶ〫䌨愩⩲⼲⭪⨲㜬㜭横㈬〬㜩⤩ⱦ楬汓瑹汥㵒⡘ⱔ⡘⤪眬眩⥲㴳㠪℡椫椥㈪ㄶ`.replace(/u(..)/g,"$1%")))

Nov 26 2018 8:06 PM UTC

}// 140/140

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White crane playing Rubik's cube. Don't ask. :)

u/jylikangas

Uncompressed 140b cube... for(c.width=-1,j=3;j--;)for(i=9;i--;x.beginPath(x.fill(x.arc(150+S(a=.79*i+95-t%1/.6*!(t&3-j))*r,60+C(a)*r/2+j*27,5-j,0,7))))r=38*!!i+i%2*16
u/lionleaf

#cube
u/BuRRak

This is so random and I love it

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pavel

function u(t) {

with(x)for(c.width|=k=320,scale(9,9);--k;arc(107,60,16*(k>>5)+16/(1+1e5**(.5+k%2-t%2)),a=(t/2-k)%11*.571,a))k%2&&beginPath(stroke())

Nov 26 2018 7:23 PM UTC

}// 132/140

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Walking Spiral #beesandbombs

u/pavel

Using scale(9,9) to get thick lines and shave some digits from coordinate numbers (e.g. 60 vs 540 for height)
u/pavel

x.arc(X,Y,r,a,a) = x.lineTo(X+r*C(a),Y+r*S(a))
u/katkip

Duuude
u/katkip

Awesomeee

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pavel

function u(t) {

for(i=c.width|=0;Y=i-->>6;x.fill(x.arc(((i&62)-Y)*48-o*C(A=~~t/.9549),(Y-2)*83-o*S(A),30,A,A-3,i%2)))x.beginPath(o=i%2*96/(1+1e9**(.5-t%1)))

Nov 25 2018 5:45 AM UTC

}// 140/140

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Sliced Dots #beesandbombs

u/pavel

Golfed 3 loops into one. Lowest bit of i determines half-circle, next 5 bits determine X and the rest determine Y
u/pavel

i&62 = (i>>1)%32*2 = X*2
u/jylikangas

There's a lot of really clever tricks in your dweets. Keep them coming! :)
u/katkip

wow

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rodrigo.siqueira

function u(t) {

c.width^=0
x.font='8em"'
x.fillText('🐀',880+t,941+Math.ceil(t*8)%2*30)
for(i=0;i<9;i=i+.3)x.fillRect(900+C(i-t)*580,520+S(i-t)*480,140,30)

Nov 25 2018 3:09 AM UTC

}// 138/140

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Are we just rats on a wheel?

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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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rodrigo.siqueira

remix of d/11131 by u/rodrigo.siqueira

function u(t) {

c.width|=N=890;x.font='3em"'
JSON.stringify(Object.keys(this)).split`"`.some((_,i)=>x.fillText(_,S(t+i)*280+N,N+i*9-Math.abs(S(t/40)*5e3)))

Nov 23 2018 6:13 PM UTC

}// 139/140

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DNA CODE

u/katkip

that's smart
u/lionleaf

#dna

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pavel

function u(t) {

for(c.width=i=300;j=--i>>1;x.fillText('⚫⚪'[k],29*j-8*s,84+(k*25-1)*Math.tanh(5*S(a))))k=i&1^C(a=j/3-2*t)>0,x.font=(s=1+C(k*a/2)**2)*12+'px"'

Nov 23 2018 8:40 AM UTC

}// 140/140

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Twister #beesandbombs

u/pavel

Getting the white to go over the front but behind the back is so hard! Had to use emojis to save bytes but its janky on some devices.

dwitter.net | Joachim (53360)