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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pavel

function u(t) {

t?c.width|=0:(i=A=240,j=B=80,p=q=-9)
x[f='fillRect'](i+=p=i<7*A?p:-p,840,A,A)
x[f](j+=q=j>0?q:-q,1e3,B,B)
j>i-B&&(j=i-B,p+=s=(q-p)/5,q-=s*9)

Jan 24 2019 10:56 PM UTC

}// 140/140

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Perfect elastic collision #physics #simulation

Show more comments…
u/pavel

Big block is 9x the weight of the little block
u/katkip

This is impressive. Idea from 3blue1brown?
u/iverjo

Wow!
u/bekfast2390

This is like ping-pong!
u/joeytwiddle

Some context: https://www.youtube.com/watch?v=HEfHFsfGXjs 3Blue1Brown
u/katkip

hi, PI
u/Undefined

A fellow 3b1b fan, I see :D
u/joeytwiddle

#3b1b
u/ivylab

I always wait until the big one gets way up to the left side and it goes bam bam bam bam bam :)

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username

function u(t) {

with(x)for(shadowBlur=i=41;i--;shadowColor=fillStyle=`hsl(${i**(t%9)},99%,78%`)beginPath(fill(arc(960+11*i*C(a=t*i/4),539+11*i*S(a),i,0,i)))

Feb 12 2019 10:28 AM UTC

}// 140/140

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jviide

function u(t) {

for(x.translate(0,(S(t)+1)*(c.height|=i=0)/2),x.font='45em"';q=2.6*(i+t*9)%51,x.globalAlpha=q/50,++i<900;x.rotate(1))x.fillText(`🎉`,q*48,q)

Nov 4 2019 10:13 PM UTC

}// 139/140

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Festive spiral

u/katkip

it works only on firefox
u/joeytwiddle

It's fine on Chrome + Linux here. You getting boxes katkip? Upgrade OS!

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rodrigo.siqueira

remix of d/32141 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𪑦𚁴🀮𝀩𨱲𩑡𭁥𢑭𨑧𩑂𪑴𫑡𬀨𨰩𛡴𪁥𫠨𫐽🡻𬠽𬠽🡍𨑴𪀮𬡡𫡤𫱭𚀩𚠳𜀰𒡸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𞐹𞐬𪀽𜐩𒡦𫱲𚁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𜁽𘀷𜀥𙁻𬠨𪐽𞐹𞐩𯐥𨀻𪐭𛐻𮀮𩁲𨑷𢑭𨑧𩐨𫐬𜐷𞐫𬠨𚐫𝀹𞐹𚡴𚡴𛀹𞐫𬠨𚐪𜠬𨐬𨠩𚑡👲𚀩𚠲𛁢👲𚀩𯐩`.replace(/u../g,'')))

Jul 19 2024 3:11 PM UTC

}// 140/140

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Texture fragment

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Unum

remix of d/17835 by u/pavel

function u(t) {

c.width|=f=(X,Y,w)=>X*X+Y*Y<=2e6*S(t/9)?w>9&&f(X,Y,w/=2)|f(X+w,Y-w,w)|f(X-w,Y+w,w)|f(X+w,Y+w,w):x.strokeRect(X,Y,w,w);f(x.lineWidth=4,4,999)

Mar 5 2020 7:17 PM UTC

}// 140/140

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Random

u/katkip

this looks like a broken quadtree ;)
u/katkip

this looks like a broken quadtree ;)

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benji

function u(t) {

c.width|=z=3+C(t);r=100;f=a=>x.lineTo(250*z+r*C(q=a-S(t+a)/2)*z,80*S(5*t)+r*z*(1+S(q)));f(0);f(0.3);f(2);f(.5);f(1);f(3);r=99;f(2);x.fill()

Jan 25 2018 11:03 AM UTC

}// 139/140

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edited from ellisk1

u/benji

P.S. Called "Flying Triangle Bird"

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contone

remix of d/22493 by u/contone

function u(t) {

d="6141a222a312979221128122217511117424544354122339132f1"
!t?o=0:l=85
k="0x"+d[f=frame-1]
f%2?x.fillRect(l*(o%16),~~(o/16)*l,k*l,l):0
o+=k*1

Apr 14 2021 6:49 PM UTC

}// 140/140

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flip flop hex spriter

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Xen

remix of d/3483 by u/veubeke

function u(t) {

t?x.rotate(7+(C(t*2)/3e1)):x.translate(960,540)
for(i=4;i--;x.fillRect(L=t*9,i*.1*L,9,L))x.fillStyle=R(Z=t*3+S(i/4),Z,t*60%6*60,.1)

Nov 7 2017 9:56 PM UTC

}// 131/140

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Sonic Spin_Dash

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lars-erik

remix of d/22578 by u/lars-erik

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👺🐵𝀰𒡦🐨𫠩🐾𞐶𜀫𮠪𠰨𫠯𞐩𚱺𚡃𚁮𚐊𩰽𚁮𚐽🠵𝀰𚱺𚡓𚁮𛰹𚐫𮠪𤰨𫠩𒡦𫱲𚁩🐶𝀻𪐭𛐻𮀮𩡩𫁬𚀩𚑢👴𚡩𛰶𛁸𛡬𪑮𩑔𫰨𩠨𨐽𨠫𭀩𛁧𚁡𚐩𯀨𮀮𩡩𫁬𤱴𮑬𩐽𤠨𬠽𤰨𭀩𚠲𝐵𛁃𚁴𚐪𜠵𝐬𬠬𛠰𜐩𚐻`.replace(/u../g,'')))

Apr 21 2021 10:36 PM UTC

}// 126/140

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#WaitForIt 2 #KeepsOnGiving - 🐱‍💻🤯 (anyone for filling it with a gradient?)

u/lars-erik

Uncompressed: c.width|=z=540 f=(n)=>960+z*C(n/9)+z*C(n) g=(n)=>540+z*S(n/9)+z*S(n) for(i=64;i--;x.fill())b=t*i/6,x.lineTo(f(a=b+t),g(a))|(x.fillStyle=R(r=S(t)*255,C(t)*255,r,.01))

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Xen

function u(t) {

for(i=99;i--;)x.fillRect(1e3+C(t*i)*t*59,540+S(t*i)*t*59,t,t)

Jan 18 2019 6:47 PM UTC

}// 61/140

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Big Bang

u/metamero

Awesome!
u/DataMeta

Niiice! Wallpaper worthy
u/katkip

It has that black line error in the right