Random dweets | Dwitter

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.

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sigveseb

function u(t) {

r=s=>Math.random()*s;for(m=i=128;i--;x.fillText('❄',r(2e3),r(2e3)))x.fillStyle=R(W=m+r(m),W,W*1.5);x.drawImage(c,S(t/13)*S(t/11),.5)

Jul 28 2016 3:28 AM UTC

}// 132/140

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u/iverjo

Beautiful! Looks like a misty storm of some sort
u/sigveseb

#rain

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KilledByAPixel

function u(t) {

for(i=710;i--;)X=Y=Z=M=N=O=269,O=(M%i),Y/=T(t+i),N=S(t-M),X=(Y*22),Z+=(i*t),M=(X-i),x.fillStyle=R(Y,N,O,1),x.fillRect(400+.05*M,21+.1*X,Z,Z)

Apr 7 2019 6:48 PM UTC

}// 140/140

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Created by my automatic dwitter emitter.

u/rnbw

your computer knows what's up

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ciaccodavide

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𜡥𝀻𪐭𛐦𙡦𬡡𫑥🀱𜰳𝰻𚑤🐱𛁘🐨𬠽𣑡𭁨𛡲𨑮𩁯𫐩𚀩𛁙👲𚀩𛁡𛡭𨑰𚁭🐾𩀽𩀼𚁫👍𨑴𪀮𪁹𬁯𭀨𫑛𜁝𛑘𛁭𦰱𧐭𦐩𚐿𩀺𪰩𛁸𛡦𪑬𫁒𩑣𭀨𦀪𜡥𜰬𦐪𜑥𜰬𜐬𩀩𞱦𬡡𫑥🀲𞐦𙡡𛡰𭑳𪀨𦱲𚀩𛁲𚀩𧐩`.replace(/u../g,'')))}{a=[]

Jan 11 2022 10:50 PM UTC

}// 129/140

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near globuli dominion

u/magna

#waitforit

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sigveseb

remix of d/308 by u/b4rc0ll0

function u(t) {

a=Math.random;x.f=x.fillRect;t||(W=999,X=Y=U=V=5),U+=a()-.5;V+=a()-.5;x.f(X,Y,9,9),x.f(Y,X,9,9),X+=U,Y+=V,U*=.99,V*=.99,X=(X+W)%W;Y=(Y+W)%W

Jul 22 2016 2:51 AM UTC

}// 139/140

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This is http://dweet.dwitter.net/id/308?autoplay=1 with velocity-based motion.

u/b4rc0ll0

it's the same , i compute a random orientation for the velocity and than apply S and C of it to the point
u/iverjo

b4rc0ll0: This dweet doesn't use S and C. Instead it has variables U and V for horizontal and vertical speed respectively. This makes the speed dynamic. Interestingly, this technique also yields more diagonal motion.
u/Zolden

oh, nice to know someone had similar idea
u/iverjo

#random

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aemkei

function u(t) {

c.width^=0;t||(I=140,p=[]);for(p[I++*I%41+
3178]=i=599;i++<3230;
)x.fillRect(i%70*20,i/70*20,p[
i]=p[i]+p[i+1]+p[i+69]+p[i+70]>>2,12);

Feb 24 2017 10:18 PM UTC

}// 134/140

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Fire and smoke

Show more comments…
u/iverjo

Neat!
u/donbright

dang this is cool.
u/sigveseb

can we add colors? :D
u/Kalanchoe

This is quite pretty!
u/Beginner

Needs colors :D
u/Xen

Color added: #3002
u/joeytwiddle

#fire

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Xen

function u(t) {

for(c.width|=m=2e3;m;)x.translate(Z=C(t*7)*39,-Z),x.fillRect(!x.rotate(--m&-m&m/2?11:-11),0,Z,Z/2)

Apr 23 2019 3:54 PM UTC

}// 98/140

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u/katkip

um yeah
u/katkip

I don't understand how did you compute this Dragon Curve. Also it is moving too fast. Try x.translate(Z=10,-Z),
u/pavel

neat
u/DataMeta

Ooh nice, missed this on the first go-around
u/Xen

#dragoncurve

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bandaloo

function u(t) {

with(x)save(i=t*99%99),font="48px'",fillText("i can't "+typeof T,99,99),scale(i,i),rotate(t),drawImage(c,0,0),restore(),fillStyle=R(9*(i+t))

May 30 2020 5:19 AM UTC

}// 140/140

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i can't typeof T

u/bandaloo

screen becomes black at a certain point, which creates a different effect

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taupelink

remix of d/24370 by u/taupelink

function u(t) {

eval(unescape(escape`景爨洽㘰〻堽ㄫ匨㈪洩ⱙ㵓⠴⩭⩭ⴭ⤻砮晩汬剥捴⠱攳⩘⵴⩩⩃⡭╴⨪⸵⤬㔴〪⬫夭琪椪匨洫琩Ⱪ⽴⨪琬洯㠪⸹⨪琩⥸⹦楬汓瑹汥㵒⡩㵭┲〰⬲㔬椪㴮㤫䌨太琫琩⽴Ⱪ⨽⸹⭃⡘⩙⭴⤯琬椯㐰⨪琯㈪⩙⤠`.replace(/u([^D].)/g,'$1%')))

Nov 28 2022 6:39 AM UTC

}// 139/140

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d/26538

u/KilledByAPixel

nice! looks kind of like an abstract landscape to me
u/magna

Amazing!
u/magna

Looks like reflections on a lake
u/danny@hille.dk

Inca village?

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magna

function u(t) {

R=540,Y=R-t*99
for(s=0,d=-1;s<=R*R-Y*Y;s+=d+=2);
X=d/2
x.fillRect(960-X,R+Y,X*2,1)

Nov 2 2021 10:36 PM UTC

}// 82/140

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#circlechallenge No trig, no direct square root: Just using the Pythagorean theorem + the fact that sums of odd numbers give perfect squares

u/Xen

very clever sir

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jick

remix of d/10610 by u/jick

function u(t) {

c.width=162;f=Math.floor;for(i=9;i--;)for(j=9;j--;){r=S(f((t+=99)));if (r-f(r)>(i/10)){x.fillRect(i*9,j*9,9,9);x.fillRect(153-i*9,j*9,9,9)}}

Oct 22 2018 5:17 PM UTC

}// 140/140

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