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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New_Core

remix of d/509 by u/New_Core

function u(t) {

with(x)strokeStyle=R(a=t*60%255,a/2,a),setLineDash([23]),lineDashOffset=a,font="6cm '",strokeText("💋",813,630),drawImage(c,-6,-3,1932,1086)

Sep 12 2020 1:07 AM UTC

}// 139/140

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Revisit of an old dweet...

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SingingGoat

function u(t) {

c.width=1920;for(a=0;a<12;a++){for(i=0;i<20;i++){x.fillStyle=R(100*T(i+t*a),200*C(i+a*t),200*C(i+t*a));x.fillRect(i*96,a*100,100,100)}}

Feb 23 2017 5:50 AM UTC

}// 135/140

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Agnes

function u(t) {

Q=(e,y,p)=>p>1?((x.fillStyle=`hsla(${p},50%,50%,${t/p/10})`)|x.fillRect(e,y,p,p)|(P=3*p/4)|Q(e+S(P)*P,y+C(P)*P,P,P)):0;Q(960,540,10*t);

Jan 4 2019 9:58 AM UTC

}// 135/140

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Soapy rainbow tunnel

u/katkip

I really don't understand what's this.

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TheYoungBard

function u(t) {

c.width=1920
for(i=0;i<96;i++)
x.fillRect(850+S(t-i*3.14/16)*300,600+C(t-i*3.14/12)*300,9,9)

Aug 14 2019 12:21 PM UTC

}// 92/140

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Pretzel (Lissajous Curve)

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Xen

remix of d/3143 by u/nystrand

function u(t) {

with(x)for(translate(t?C(t):i=m=990,t?0:540),i=m;i--;fillRect(-m,i+z,3e3,2+z/i))fillStyle=R(z=m/((i*i-t*i)%m),rotate(-T+(T=i+S(t))),z*9,.1)

Sep 3 2017 1:34 AM UTC

}// 139/140

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few tweaks to the original...

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Xen

remix of d/21120 by u/tomxor

function u(t) {

c.width=54
for(i=4e3;i--;x.fillStyle=R(X,Y,Z*69))x.fillRect(X=i*3&127,Y=i>>7,1,Z=Y/4-4>T(T(C(X/4+C(t)*9)*C(Y/4+t*9))))

Jan 4 2021 2:29 PM UTC

}// 118/140

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Quick play

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pavel

function u(t) {

for(c.width=i=960;--i;x.ellipse(480,270-56*(j%2-.5)*y,r=32*(64-y*y)**.5,r/2,0,a=(j+t%1)/7,a+!j*7))j=i>>4,y=i%16-8;x.stroke()

Apr 10 2019 8:35 AM UTC

}// 124/140

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#wireframe #sphere

u/f8f82804

#d3
u/Xen

Nice!
u/lionleaf

Nice one! #globe
u/pavel

I use 44 longitude lines so the arc angle between adjacent two is 2*pi/44 which is approximated by 1/7 to 4 decimal places.
u/pavel

Using the famous pi ~ 22/7 approximation.

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ciaccodavide

function u(t) {

for(c.width|=0,z=(g=1920)/9,i=g;i--;)a=z+z*S(t)/3,x.fillRect(960+S(i+i)*a*C(t+i),540+C(i+t)*a,20+S(i)*20,20+S(i)*20);

Oct 20 2020 5:28 PM UTC

}// 117/140

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z8s slick

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384.cz

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𨡡𨱫𩱲𫱵𫡤👒𚀩𒡸𛡦𪑬𫁓𭁹𫁥👒𚀰𛀰𛀰𛀮𜰩𒡸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𜡥𜰬𜡥𜰩𒡦𫱲𚁩🐲𩐴𞱩𛐭𞱸𛡦𪑬𫁓𭁹𫁥👒𚀲𝐶𛀲𝐶𚱓𚁩𚱴𚐪𜠵𝠬𜀬𛠰𜐩𚑸𛡦𪑬𫁒𩑣𭀨𜑥𜰫𤰨𭀫𪐯𞐩𚠹𞐫𥀨𭀫𪐩𚠴𝐬𜐰𞀰𛐨𤰨𭀫𪐩𚡔𚁩𚡴𚐩𚠪𝀬𞀰𛀳𜀩`.replace(/u../g,'')))

Feb 10 2024 8:07 AM UTC

}// 139/140

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Weird #fire

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hoplite

remix of d/26599 by u/hoplite

function u(t) {

for(w=i=c.width=128;i--;)for(j=w;j--;k=r>1?1:r,x.fillRect(i,j,k,k))r=0,[2,3,4,5,7].map(a=>r+=w/((i-48*C(a*t/9)-64)**2+(j+9*T(a*t/7)-36)**2))

Dec 11 2022 10:44 PM UTC

}// 140/140

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u/magna

#metaballs
u/joeytwiddle

ooh this canvas is only 72 pixels tall!