Dweets awesomed by u/rodrigo.siqueira

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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f8f82804

remix of d/11753 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d,s=45-5e3*d,s))r=i%2+1,d=Math.hypot(X=r*S(ϕ=i/612)*S(θ=i*37-t/r),Y=r*C(ϕ)/.7+4,r*C(θ)*S(ϕ)+5)/1e3

Jan 14 2019 5:22 PM UTC

}// 140/140

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#perspective #sphere #pointcloud #hypot -- the distortion from this projection is clear here, because the two spheres should be concentric but it looks like they aren't

u/metamero

this dweet series is great
u/f8f82804

thanks! I'm having a lot of fun with it. Hopefully I'll be able to fix up the distortion a little and reivist some of these ideas
u/f8f82804

the distortion here is pretty bad because i'm applying the correction incorrectly! see d/11812

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joeytwiddle

remix of d/11725 by u/joeytwiddle

function u(t) {

(p=(X,Y,W,I,H=W/2)=>H>1?[0,1,2,3].map(i=>p(X+i%2*H,Y+H*(i>1),H,I*(.5+S(t*t++/2e4)/2)**.1)):x.fillRect(X,Y,3-I,3-I))(0,0,c.width=R=512,5)

Jan 14 2019 10:10 AM UTC

}// 136/140

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Some more of this fractal nonsense

u/joeytwiddle

(The original intention was to do this with hue. Perhaps that can be achieved...)
u/DataMeta

Highly entertaining #glitch

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JWinslow23

function u(t) {

eval(unescape(escape`孰Ɽ崽琿嬱の⩰⬨礽䉩杉湴⡥癡氨嬰ⰱⰲⰳⰴⰵⰶⰷⰸ崮浡瀨椽㸨樽䉩杉湴⡩⬱⤩⨲の⩰⭪⩪㰽搩⹪潩湠⭠⤩⤬㄰の⨨搭礪㈰渪瀭礪礩⬲㕮⩂楧䥮琨ⅰ⥝㩛のⰱ湝㭴桲潷‱⸶⬨瀫∢⤮獬楣攨㈩`.replace(/u(..)/g,"$1%")))

Jan 5 2019 8:51 AM UTC

}// 132/140

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Throws the digits of phi (the "golden ratio") as an error, forever...

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JWinslow23

function u(t) {

eval(unescape(escape`琿琥ㄼ⸰ㄦ☨挮睩摴栽㈴ⱱ⨽椽䉩杉湴⠰籴⬱⤬砮晩汬呥硴⡹㴨焪㈷渭焪ㄲ港椫㕮⩲⤯㕮⽳ⰹⰹ⤬爽㄰渪⡵㴶渫㈷渪椪⡩⬱温⤪⡱⨵渭焪㉮⽩⭲⵹⩳⤬焪㴲の⩩ⴱのⱳ⨽甩㨨焽ㅮⱲ㴱㠰測猽㘰温`.replace(/u(..)/g,"$1%")))

Jan 3 2019 8:57 PM UTC

}// 133/140

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The digits of pi, forever... (credit to u/katkip for golfing tips)

u/katkip

Nice
u/joeytwiddle

#math

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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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rodrigo.siqueira

remix of d/10314 by u/veubeke

function u(t) {

c.width^=0
s=(t%3)**3
x.font="2in'"
for(Y=9;Y--;)for(X=Y+1;X--;)x.fillStyle=R(Y*99,Y*27,0),x.fillText("▲",865+(X*48-Y*24)*s,(Y-4)*46*s+600)

Jan 1 2019 4:36 PM UTC

}// 139/140

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Expanding unicode triangles. German colors.

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u/katkip

German colors? I'm curious to see the Romanian ones.
u/lionleaf

#recursive
u/lionleaf

#zoom
u/username

seemless
u/username

<- this version is not
u/username

^ meant to use an up arrow

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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

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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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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭲㴨堬夬猩㴾筩昨猾㈩砮晩汬剥捴⡘ⱙⱳ⨲ⱳ⨲⤬爨堭猬夭猬猯㈩Ⱳ⡘⵳ⱙ⭳ⱳ⼲⤬爨堫猬夭猬猯㈩Ⱳ⡘⭳ⱙ⭳ⱳ⼲⥽㭸⹧汯扡汁汰桡㴮㔫䌨琪㈩⨮㌬爨㤶〬㔴〫䌨琩⨴㈰ⰴ㠰⤻`.replace(/u(..)/g,"$1%")))

Dec 31 2018 12:15 PM UTC

}// 131/140

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#infinite #sierpinski #recursion #layers #levels #grayscale #fractal #recursive

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JWinslow23

function u(t) {

P=t%18*60;if(P<1){c.width^=0;a=[1]}b=[];for(i=a.length;i--;){p=a[i];x.fillRect(960-P/2+i,P,p,p);b[i+1]^=p;b[i]=0^p}a=b

Dec 31 2018 7:53 AM UTC

}// 118/140

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My first Dweet! It's nothing too special, but I did as much golfing as I knew how to do.

u/katkip

Nice.
u/rodrigo.siqueira

It is possible to compress about 10% more with small goof tricks. 103 characters instead of 115: P=t*60;P<1?c.width^=a=b=[1]:0;for(i=a.length;i--;)p=a[i],x.fillRect(960-P/2+i,P,p,p),b[i+1]^=p,b[i]=0^p

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭴⼽㈻昽⡘ⱙⱳ⤽㹻砮扥杩湐慴栨⤻楦⡳㸲〩砮慲挨堬夬猬〬㜩ⱸ⹳瑲潫攨⤬昨堫䌨猫琩⩳ⱙⱳ⼲⤬昨堭䌨猫琩⩳ⱙⱳ⼲⤬昨堬夫䌨猫琩⩳ⱳ⼲⤬昨堬夭䌨猫琩⩳ⱳ⼲⥽㭦⠹㘰ⰵ㐰ⰷ〰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 10:15 AM UTC

}// 135/140

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#circles #fractal #recursion #recursive I'm just like a gifted autistic kid who finally discovered recursion c.width^=0;t/=2;f=(X,Y,s)=>{x.beginPath();if(s>20)x.arc(X,Y,s,0,7),x.stroke(),f(X+C(s+t)*s,Y,s/2),f(X-C(s+t)*s,Y,s/2),f(X,Y+C(s+t)*s,s/2),f(X,Y-C(s+t)*s,s/2)};f(960,540,700)

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