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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Current theme challenge: #Food

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iznax

remix of d/17633 by u/andrea270872

function u(t) {

for(F=f=>f(i/t)*k+k,c.width=900,i=k=450,c.style.filter=`invert(1`,x.strokeStyle=R(C(t)*k,99,S(t)*k),t%=2;--i;x.lineTo(F(S),F(C)));x.stroke()

Feb 16 2020 7:13 PM UTC

}// 140/140

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The Color Pupil (try not to blink)

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BriSeven

remix of d/11545 by u/ersagun

function u(t) {

d=C(t)*3.14;r=300*S(t*301);x.fillRect(r*C(d)+960,r*S(d)+540,8,8)

Apr 22 2020 1:12 AM UTC

}// 64/140

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this will probably be a circle eventually

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pythech

remix of d/8693 by u/pythech

function u(t) {

c.width|=0
t/=3
with(x)for(i=1e3;i--;fill(),fillStyle=k?'#fff':R())beginPath(k=i%2),arc(60*(i>>1)-t*222,500+400*S(i*t/10),200,0,9)

Jun 22 2018 4:13 AM UTC

}// 130/140

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#waitforit

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rodrigo.siqueira

remix of d/20729 by u/rodrigo.siqueira

function u(t) {

for(i=3e3,c.width|=f=g=>99*(S(i+t*5)-2-C(i/t/5e3+t*5))*g(i*i);i--;x.lineWidth=1)x.strokeRect(960+f(C),540+f(S),s=i/99*S(i),s)

Nov 21 2020 5:25 PM UTC

}// 125/140

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Pulsating donut #torus

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18sp01

function u(t) {

c.width=1920;
  for(i=0;i<10;i++){
  x.fillRect(i*120+T(t)*400, 500, 20, 200);
x.fillStyle=R(255,5,240,0.5)}

Dec 27 2017 2:08 AM UTC

}// 108/140

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How do I make the first bar pink as well?

u/sigveseb

You need to make sure you set fillStyle before you call fillRect. The canvas context is stateful like that, it remembers the active fillStyle and uses it for all subsequent fill calls until it is set to something else. The default fillStyle after reseting a canvas is black, which is why the first bar is black here :)
u/18sp01

@sigveseb Thank you!

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Toshiya-Marukubo

function u(t) {

l=c.width=1920;t/=10;for(i=1080;i-=30;)for(j=l;j-=30;){k=i*l+j;x.globalAlpha=T(k-t);x.fillRect(j,T(j+t)*i+1080/2,T(k-t)*20,T(k*i+t)*20)}

Apr 23 2021 1:13 AM UTC

}// 136/140

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Initial post.

Show more comments…
u/taupelink

Welcome to Dwitter!
u/Toshiya-Marukubo

Nice to meet you : ) I'm grad to join here.
u/andrea270872

Well done. Makes me think of some 60's cover/animation art... very cool
u/Toshiya-Marukubo

Thank you so much!!!
u/Xen

Welcome to the dwitter family!
u/danny@hille.dk

Super cool first dweet! love it
u/DataMeta

Cool! #keepsongiving
u/Toshiya-Marukubo

Thank you so much!

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taupelink

function u(t) {

f=n=>x[n](500,500-100*C(t),800,80);
c.width|=0;f('strokeRect');f('rect');x.clip();for(i=9;i--;)x.fillRect(400+i*100+S(t)*300,400,50,200)

Jan 13 2022 2:03 PM UTC

}// 136/140

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d/24738

u/taupelink

#default #800x80 #genuary #genuary2022

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zenymay5

remix of d/1140 by u/zenymay5

function u(t) {

r=420;c.width=r*4;λ=2;for(φ=a=Math.PI/1;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+6/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 24 2017 6:10 AM UTC

}// 135/140

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DaSpider

function u(t) {

eval(unescape(escape`挮獴祬攮扡捫杲潵湤㵒⠩㭪㴲㔰㭩㴷㜸㌴⬨琪ㄶ攳⤥ㅥ㍼〻睩瑨⡸⥻景湴㴢ㄲ敭⁳∻晩汬却祬攽刨横匨㐴⩴⤬横䌨㜷⩴⤬吨㈪琩⤻晩汬呥硴⡓瑲楮朮晲潭䍯摥偯楮琨椩ⱴ⨱攴┲攳Ⱪ┱攳⥽`.replace(/u(..)/g,"$1%")))

Nov 3 2019 1:59 AM UTC

}// 130/140

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Pharaoh's code

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KilledByAPixel

remix of d/13240 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𮁛𬰽𙱦𪑬𫁓𭁹𫁥𙱝🐢𘰰𜀰𜠢𞱸𦱆🐧𩡩𫁬𤡥𨱴𙱝𚀰𛀰𛁚🐲𩐳𛁚𚐻𤀽𣑡𭁨𛡐𢐻𩠽𚁳𛁷𛁯𚐽🠨𫐽𚀨𚀨𤰨𪐪𤀪𜠯𦠫𬰪𤀯𜠩𚠲𞐹𚐪𭀫𫰩𚐥𭰫𭰩𙑷𛁭🡷𛰲🱷𛑭𞡭𚐻𩡯𬠨𪐽𦠻𪐭𛐻𮁛𡡝𚁦𚀱𛀳𞀳𜐬𞐶𜀩𛁦𚀲𛀲𜐵𜐬𝐴𜀩𛀹𛀹𚐩𮁛𬱝🐧𬡥𩀧`.replace(/u../g,'')))

May 17 2019 5:00 AM UTC

}// 138/140

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Red Explosion Contained

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u/Xen

now we sit and wait for it to one day turn back into a circle lol
u/KilledByAPixel

its gonna be a long wait!
u/katkip

I think it is 49777670.4258 seconds with 60 FPS
u/katkip

This calculus took me a lot
u/KilledByAPixel

t=60*49777670.4258; Nope.
u/katkip

Oh.
u/katkip

It never gets back to circle because it is getting unsymmetrical
u/KilledByAPixel

I think eventually t will wrap around and become 0 again.