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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taupelink

remix of d/25494 by u/taupelink

function u(t) {

for(k=288,m=t?0:1e5;m--;x.stroke())x.beginPath(r=m**(m%(8/13))),i=m%k,x.lineWidth=r/i/90,x.arc(m%7.2*k+r*C(m),m/6%4*k+r*S(m),r,m,m+m%8/9+.1)

Jun 7 2022 7:10 PM UTC

}// 140/140

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d/25631

u/taupelink

This one also looks different in different browsers. The iOS version is what I intended. is

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prplz

function u(t) {

c.width=-1;Q=40;for(X=W=20;X--;)for(Y=W;Y--;)X&1^Y&1&&x.fillRect(X*W-Q+t*100%Q,Y*W-Q+S(t)*200%Q,W,W)

May 7 2018 1:14 PM UTC

}// 100/140

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u/BuRRak

Nice! Looks quite similar to my dweet, d/7996 :D
u/iverjo

You just taught me that c.width=-1; actually sets the canvas width to 300. Clever!
u/BuRRak

300 is the default size of a canvas so giving a negative number will just reset it to defaults i guess
u/prplz

iverjo: I give credit to u/jylikangas for the -1 width trick
u/prplz

BuRRak: Thanks, same goal different approach :)

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ArthurThuczsec

remix of d/23507 by u/ArthurThuczsec

function u(t) {

for(f=i=197;i--;x.fillStyle=R(r%f,g%f,b*t%f,.02))x.fillRect(r=960+C(t*i^f)*i*t,g=540+S(t*i^f/2)*i*t,b=199/(t+1),b),x.strokeRect(r,g,b/2,b/2)

Aug 7 2021 7:09 PM UTC

}// 140/140

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danny@hille.dk

remix of d/21021 by u/pavel

function u(t) {

with(x)for(c.width|=i=300;i--;beginPath(fill(ellipse(40+19*C(a=++t%3.1),0,S(a),!rotate(i/6),a,0,7))))setTransform(9,0,0,9,960,540)

Dec 17 2020 5:54 PM UTC

}// 130/140

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gold and play

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ifrias

function u(t) {

with(x)for(i=n=23;--i;)F=(f,m)=>Math.abs(m-t*.7*f(i*1.5/n)*2e3%(2*m)),font='100px a',fillText('🎸'.substr((i%3)*2,2),F(C,1920),F(S,1e3))

Jul 13 2018 1:29 PM UTC

}// 135/140

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23_Skidoo

function u(t) {

l=255;x.rotate(.008);x.translate(5,5)
for(i=0;i<l;i++){x.fillStyle=R(l*C(t/8),l*S(i/l+t),l*S(t),0.05)
x.fillRect(-l+i*60,-l,17+S(t)*13,2E4)}

Jan 31 2019 8:25 AM UTC

}// 140/140

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afs

function u(t) {

c.height=108;c.width=192;for(i=0;i<192;i++)for(j=0;j<108;j++){h=i*j*S(t*2.5)%256;x.fillStyle='hsl('+h+',80%,25%)';x.fillRect(h+96,i+j,1,1);}

Oct 6 2019 5:12 AM UTC

}// 140/140

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lewdev

function u(t) {

for(a=1400,x.fillRect(0,0,b=a*2,b),i=99,x.font="2in'";i--;)x.fillText("🧟",S(i*.01)*b-150,(C(i*.2)**2*a+~~(S(t+i)*30)+t*20)%a-99)

Oct 18 2024 2:14 AM UTC

}// 128/140

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🧟 #zombies #halloween

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gpolonus

remix of d/17827 by u/gpolonus

function u(t) {

t?0:p=q=0
f=(a,b,c,d)=>x.moveTo(a,b)|x.lineTo(c,d)|x.stroke()
onmousemove=e=>((a,b)=>f(a,b,q,p)|f(2e3-a,b,2e3-q,p)|(q=a,p=b))(e.x*3.4,e.y*3)

Mar 4 2020 6:44 PM UTC

}// 140/140

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Mirror lines #interactive

u/gpolonus

The cursor if off in the y direction. I wanted to change the 3 multiplier to 3.4 but couldn't figure out where to save characters. Any suggestions would be much appreciated!

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geeknik

function u(t) {

for(i=2e3;i--;)r=600*S(t*.1),a=i*.02+t*2,x.fillStyle=R(i^t*99,i&255,t^i,1),x.fillRect(960+C(a)*r,540+S(a)*r,3,3)

May 24 2025 8:06 PM UTC

}// 112/140

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Eye of recursion