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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remix of d/25177 by u/magna

function u(t) {

c.width|=c.style.filter='invert('
for(m=240,i=5e3;i--;x.fillRect(b+r*7*T(t),m+b+g*T(t),9,9))x.fillStyle=R(r=i>>4&m,g=i&m,b=i<<4&m,S(T(i/t)))

Mar 25 2022 5:47 PM UTC

}// 140/140

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u/andrea270872

nice effect... reminds me of a trasmission test for some monitor :)

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Xen

remix of d/27196 by u/NiekvD

function u(t) {

for(c.width|=a=i=w=512;i--;x.lineTo(w+C(a+=p)*w+w,w+S(a)*w))e=S(t+i*(p=t|0))*w,x.fillText(0,w+w+C(a)*e,w+S(a)*e),x.moveTo(w+w,w);x.stroke()

Mar 14 2023 7:21 PM UTC

}// 139/140

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139 golf and play

u/Xen

fullscreen is a must.

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New_Core

remix of d/2874 by u/New_Core

function u(t) {

b=c.width|=1,d=350
X=10*S(t)
Y=10*C(t)
for(i=d;i--;x.fillRect(X*Z+960,Y*Z+540,Z,Z))Z=d/(9+d-i%d),X+=6*C(a=i/50-9*S(t/8)*S(i/9)),Y+=6*S(a)

Aug 3 2017 7:36 AM UTC

}// 137/140

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u/13thptr

#d3

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loktar

function u(t) {

for(r=100,!t&&x.scale(20,20),i=0;i<r*r;i++)X=i%r,Y=i/r,V=X-r,W=Y-r,d=V*V+W*W,x.fillStyle=R(d%(250*C(t)),0,d%(250*S(t))),x.fillRect(X,Y,1,1);

Jun 20 2019 11:54 PM UTC

}// 140/140

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Started as something completely different, thought this looked neat and fit in the limit.

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Xen

function u(t) {

x.beginPath(Z=250),x.arc(9e2+C(t+t*C(t/Z)+t*Z)*Z,5e2+S(t+t*C(t/Z)+t*Z)*Z,Z,0,7),x.stroke(),x.strokeStyle=R(z=t*Z%Z,Z*T(z),Z-z,.5)

May 17 2018 6:42 PM UTC

}// 129/140

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BirdsTweetCodersDweet

function u(t) {

c.width=w=1920;m=150;for(i=0;i++<m;)k=C(t*2+i/50)*255,x.fillStyle=R(255-k/2,0,k),x.fillRect(i/m*w,w/4+100*S(i/10+t/2),10,m*C(i+t))

Feb 22 2018 2:39 PM UTC

}// 130/140

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Golfed even more :D

u/snydej

Some more golfing: w=c.width+=0;for(i=m=150;i--;x.fillRect(i/m*w,w/4+100*S(i/10+t/2),10,m*C(i+t)))k=C(t*2+i/50)*255,x.fillStyle=R(255-k/2,0,k)

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Xen

remix of d/21745 by u/Pascal

function u(t) {

for(w=i=c.width|=0;i--;x.lineTo(1e3+w*(C(b)+C(i+t)*S(t)+C(a=i/(t|1)))/z,540+w*(S(i)*C(t/z)+S(a))/z))z=S(b=i+t)+5
x.stroke()

Feb 23 2021 12:21 AM UTC

}// 123/140

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quick play

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aemkei

function u(t) {

c.width^=0;for(i=-30;i<30;i+=0.01+t/2e3)x.fillRect(960+T*C(T=i*40),540+T*S(T),w=4+i*S(t),w)

Feb 23 2017 10:30 AM UTC

}// 91/140

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smtsjhr

remix of d/19958 by u/smtsjhr

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👪🐱𝠻𪠭𛐻𚑻𮀮𫑯𭡥𥁯𚁵🐵𜀰𚠨𥀨𭀯𝰫𪠩𛐮𝐩𛁶👵𛰲𚰲𜀰𚡃𚁪𚱴𚐩𞱦𫱲𚁩🐵𞱩𛐭𞱸𛡬𪑮𩑔𫰨𭐫𚁷🐭𝐰𚱵𛰵𚐪𠰨𨐽𛠳𚱓𚀵𚡴𚰱𜀪𤰨𪠩𚐯𜐮𝐩𚡓𚀱𛠵𚡩𚐬𭠫𭰪𚁃𚀱𛠵𚡩𚐯𝐰𚱩𙐲𚡓𚁡𚐩𚐩𮱸𛡦𪑬𫀨𚑽𯐻`.replace(/u../g,'')))

Sep 15 2020 3:07 AM UTC

}// 134/140

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short looped variant of d/19958

Show more comments…
u/danny@hille.dk

for(c.width|=j=16;j--;){x.moveTo(u=500*(T(t/7+j)-.5),v=u/2+200*C(j+t));for(i=5;i--;x.lineTo(u+(w=-50+u/5)*C(a=.3+S(5*t+10*S(j))/1.5)*S(1.5*i),v+w*(C(1.5*i)/50+i%2*S(a)))){x.fill()}};
u/danny@hille.dk

Woops didn't mean to sumitt that :-)
u/danny@hille.dk

143b and still looks ok... ->for(c.width|=j=9;j--;)for(i=4,x.moveTo(u=500*(T(t/4+j)),v=u/i+9*C(t));i--;x.lineTo(u+j+v*C(a=S(5*t+S(j)))*S(1.4*i),v+v*(a/9+i%2*S(a))))x.fill()
u/danny@hille.dk

I can't shave of the last 3 bytes without messing it up :-(
u/danny@hille.dk

139b version ->for(c.width|=j=9;j--;)for(i=4,x.moveTo(u=555*(T(t/4+j)),v=u/i+9*C(t));i--;x.lineTo(u+j+v*C(a=S(5*t+S(j)))*S(1.4*i),v+v*(i%2*S(a))))x.fill()
u/smtsjhr

wow well done! very fair trade off removing that 'a/9' addition since its small: |a/9|<0.1
u/danny@hille.dk

Thanks, Im not going tell how long it took me to figure that out though :-)

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New_Core

remix of d/17189 by u/yonatan

function u(t) {

for(w=c.width|=i=600;i--;x.strokeRect(960,560,q=i%2<1?i:-i,i%3<1?-q:q))x.setLineDash([i+20]),x.lineDashOffset=960+200*S(t*2+i/60)

Jan 13 2020 7:31 PM UTC

}// 129/140

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u/sigveseb

swizzly!