Dweets awesomed by u/The42ndTurtle

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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Pascal

function u(t) {

for(j=4;j--&&t<2;)for(i=1080;i--;x.fillRect(a=t*240+j*480,i,8,f(a/2400-.4,i/2400-.225)**2))f=(X,Y,n=80)=>Y<n?f(X*X-Y*Y-.3,2*X*Y+.7,--n):n/80

Jan 24 2021 2:02 PM UTC

}// 140/140

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fast flowers

u/Qwitter

I like the 4 panel display!
u/danny@hille.dk

lovely presentation

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veubeke

function u(t) {

c.width^=0
x.font='90px"'
for(i=11;i--;x.fillText(X<5?'🐄':'🥩',X*192,800))X=(i+t)%11-1
for(i=11;i--;)x.fillRect(i*192,i-5?800:600,192,1080)

Jul 24 2019 10:42 AM UTC

}// 138/140

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u/katkip

#genius
u/aleamb

lol
u/Xen

love it
u/young

this is amazing
u/Odog8

PETA in a nutshell
u/HellMood

xD

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joeytwiddle

function u(t) {

c.width|=0;for(i=2;i--;)s=i?99+80*S(t*3):9,x.font=P=s+"px sans",
T=i?P:'X'.repeat(400),
x.fillText(T,960-x.measureText(T).width/2,540+s/3)

Jul 24 2019 8:53 AM UTC

}// 138/140

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To centralise #text vertically, add ~fontSize/3

u/joeytwiddle

To centralise horizontally, subtract x.measureText(T).width/2
u/joeytwiddle

(I think u/f8f82804 showed me that trick)

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taupelink

function u(t) {

t||(x.font=`30em"`,x.fillText("1+",40,620),x.fillText("1",1050,400),x.fillRect(570,b=450,1200,24))
x.drawImage(c,0,0,2e3,1e3,650,b,1100,550)

Jul 24 2019 3:24 AM UTC

}// 140/140

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Continued fraction for the golden ratio, 1+sqrt(5)/2. #math #numbertheory https://en.wikipedia.org/wiki/Golden_ratio

u/taupelink

hmm, doesn't seem to work on iOS Safari
u/taupelink

to get it to work on iOS/MacOS, replace 2e3 with 1920 and 1100 with 1e3.
u/taupelink

* maybe it's a safari issue rather than an OS issue. * on my iOS device, that adjustment seems to work temporarily, but then the browser has to reload the screen. ¯\_(ツ)_/¯

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robbyg

function u(t) {

s="3E71EAA0325D3E7C"
s.match(/.{2}/g).map((h,v)=>{z=parseInt(h,16);for(i=128,h=0;i>=1;i/=2,h++)z&i&&x.fillRect(h*99,v*99,99,99)})

Jul 23 2019 7:18 PM UTC

}// 129/140

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Converting a hexadecimal string into a sprite. Change the value of s to play!

u/robbyg

121: "3E71EAA0325D3E7C".match(/.{2}/g).map((s,v)=>{for(i=128,h=0;i>=1;i/=2,h++)parseInt(s,16)&i&&x.fillRect(h*99,v*99,99,99)})
u/robbyg

119 (okay I should do something else now): "3E71EAA0325D3E7C".match(/../g).map((s,v)=>{for(i=128,h=0;i>=1;i/=2,h++)parseInt(s,16)&i&&x.fillRect(h*99,v*99,99,99)})
u/robbyg

#pixelart

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taupelink

remix of d/14990 by u/taupelink

function u(t) {

t||(f=540,A=[2,1,d=e=0,1]);for(i=b=960;i--;)d+=(A[r=Math.random()*3|0]-d)/2,e+=(A[r+1]-e)/2,x.fillRect(b+d*f*C(q=(i>>5)+.2),f+e*f*S(q),1,1)

Jul 23 2019 5:28 PM UTC

}// 139/140

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KilledByAPixel

remix of d/15099 by u/katkip

function u(t) {

x.fillStyle="red"
x.font=(t?q=x.getImageData(i=t%1*60,j=t|0,1,1).data[3]/139:4)+"em'"
x.fillText("❤",t?i*29-q*8+75:0,t?j*22:49)

Jul 23 2019 5:28 PM UTC

}// 127/140

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❤ Heart of Hearts ❤

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f8f82804

function u(t) {

x.lineWidth=4
t||x.strokeRect(712,492,496,96)
x.fillStyle=`hsl(${t}rad 90% 50%)`
x.fillRect(720+120*(t%4),500,2,80)

Jul 23 2019 4:38 PM UTC

}// 115/140

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#rainbow #progress -- inspired by https://reddit.com/r/oddlysatisfying/comment…

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rep_movsd

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𭰽𜐹𜠰𒡦𫱲𚁨🐱𜀸𜀬𫰽𜰰𛁳👴𚠴𯀰𛁹🐭𭀪𝀪𫰥𫰬𬐽𜠪𚠳𜐭𜐬𮀮𨡥𩱩𫡐𨑴𪀨𚐬𦐽𜀻𦐫𚰼𪀯𫰻𚐊𩡯𬠨𪠽𦐫𬰬𦀽𜀻𦀼𭰻𦀫👯𚑻𮀮𫑯𭡥𥁯𚁘𚰨𩀽𚀨𪠽𪠪𝀸𝰰𜐥𬐩🡱𛰲🱯𞠭𫰩𛰲𚐬𮐫𦐪𫰩𒡸𛡬𪑮𩑔𫰨𦀭𩀬𮐫𦐪𫰫𫰩𯐊𮀮𬱴𬡯𪱥𚀩`.replace(/u../g,'')))

Jul 23 2019 1:53 PM UTC

}// 140/140

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#maze

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robbyg

function u(t) {

c.width|=0
for(i=9;i--;)for(p=100;p--;)x.fillRect(560+i*100+p%5*10+S(t)*300,440+~~(p/5)*10+T(t/2-(i/4-p/800))*50,10,10)

Jul 23 2019 1:36 PM UTC

}// 119/140

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Can't seem to hold it together.

u/robbyg

#default

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