Dweets awesomed by u/magna

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: #Food

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pavel

function u(t) {

f=(i,j=i%1,k=~~i,m=j*j*(3-2*j))=>S(k*k)*m---m*S(--k*k)
for(i=c.width|=0;i--;)x.fillRect(i,540+99*f(i/32+5*t),5,5)

Mar 28 2020 9:41 PM UTC

}// 113/140

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I would love to find a better / shorter 1D noise function #challenge

u/pavel

This one assigns a 'random' number to each integer k via S(k*k) and uses smoothstep to interpolate between them.
u/pavel

Another idea to play around with f=(i,n=9)=>n&&C(n**.5*i)/n+f(i,n-1)
u/joeytwiddle

#random

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jellyedwards

function u(t) {

c.width=400;for(i=5;i--;x.fillRect(0,100+i*10,400,1))x.font='25px A';for(m=t*5|0;m--;x.fillText('🎵',-t*99+m*25,100+10*(m%9>4?n:4-n)))n=m%5

Mar 28 2020 7:30 PM UTC

}// 138/140

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Philip #glass

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pavel

remix of d/18074 by u/pavel

function u(t) {

c.width|=f=(X,Y,d,z=2+X*S(a=Y-4*t))=>d>>8?x.fillRect(960+1e3*X*C(a)/z,540+1e3*Y/z,6,6):[t,t+2,t+4].map(i=>f(X+C(i)/d,Y+S(i)/d,2*d));f(0,0,2)

Mar 28 2020 3:27 AM UTC

}// 140/140

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#sierpinski dance

Show more comments…
u/sigveseb

Very clean!
u/DataMeta

So smooth!
u/aleamb

wow! very smart code!
u/lionleaf

What an amazing dweet. And little did you know I had already planned #dancing as the theme for April. You were ahead of the times :D
u/joeytwiddle

Nice! Here is a dirtier, underrated relative: d/13611
u/Qwitter

looks glossy!
u/vain

Very nice and smooth 3D rotated and transformed sierpinski

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pavel

function u(t) {

with(x)for(c.width|=i=4;i--;i%2||beginPath(fill()))fillStyle=R(r=150+90*S(a=t%3.14+(i>1)*22),r),arc(960-666*C(a),540,i%2*r,a/=2,a<.73?-a:19)

Mar 27 2020 5:41 AM UTC

}// 140/140

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#pacman #loop

u/aleamb

love it!
u/farter

poop eats
u/farter

*my poop eats me*

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iznax

remix of d/18033 by u/New_Core

function u(t) {

s=[..."🦍🛌💥"]
eval(unescape(escape`𩡯𬠨𭀥🐱𞐬𨐽𭀥𜐬𩀽𭀼🀴𛁣𛡷𪑤𭁨𯀽𪐽𜠻𪐭𛐻𮀮𩡩𫁬𥁥𮁴𚁳𦱩𚰡𨠪𪑝𛀡𪐿𞀰𜀫𞐹𚡃𚁴𚐭𘑢𚠨𭀭𞀩𚠪𜰺𝐰𜀬𪐿𚀲𛐨𭀼𞐮𜠩𚐪𞐵𜀫𩀺𨠿𝰰𜀭𜰵𜀪𤰨𨐪𜰮𜰩𚱤𞠱𩐳𚐩𮀮𩡯𫡴🐨𞀼🁩𚐫𘡣𫐧𘠬𨠽𭀼𞐻`.replace(/u../g,'')))

Mar 24 2020 6:22 AM UTC

}// 138/140

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This is why we can't have nice things #emoji

u/katkip

bad harambe

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BriSeven

function u(t) {

c.width*=1 // clear the canvas
f=(s,...a)=>{for(n in x)n.match(s)&&x[n](...a)}
for(i=0;i<9;i++)f('lRe',400+i*100+S(t)*300,400,50,200);

Mar 24 2020 1:53 AM UTC

}// 136/140

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An unfruitful experiment in compressed canvas method calls.

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u/pavel

How about something like i=0;for(m in x)u[i++]=m;x[u[34]](512,512,512,512) Shortens every call to six chars at the cost of 24... Maybe shorter if you call globalCompositeOperation and some shadow methods too hah.
u/pavel

Or how about this f=(n,a)=>{for(m in x)--n||x[m](...a)};f(35,[512,512,512,512]) 37 chars to reduce every name to one or two chars.
u/pavel

Three or four chars**
u/pavel

aw, actually none of these work for stuff like globalCompositeOperation as they are not methods.
u/BriSeven

Good one, I was also thinking about the possibilities of something like an.. uhh, a tiny bytecode interpreter? take a string and convert it to function calls and parameters somehow.
u/pavel

i=t&&u;for(m in x)x[i++]=x[m];x[34](512,512,512,512) costs 29 to make calls 3 each.
u/pavel

Lastly, can do something niche like for(m in x)x[m[4]]=x[m];x.R(512,512,512,512) that costs 23 and shortens to 1 char but a subset of all calls.
u/BriSeven

wow are these established techniques or did you just think of those now?
u/pavel

i made them up just now but they are simple remixes
u/yonatan

for(p in x)this[p[0]+p[6]]=p sets up shortcuts on this so you can do x[gC] instead of x.globalCompositeOperation (from d/10842)

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tomxor

function u(t) {

x.fillRect(0,0,c.width=138,78);for(i=48;i--;x.fillText([...'🦙🐐🦒'][i>>4],(X&128?~X:X)&127,((Y&128?~Y:Y)&127)**2+2e4>>9))X=t+i*t*3,Y=i*3+t*140

Mar 23 2020 8:04 PM UTC

}// 140/140

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LLAMATRON : 2112 🐂 !?!

u/tomxor

#atari #llamatron
u/tomxor

maaaa a a a !
u/tomxor

❤ if you get this
u/384.cz

#llama

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁫🐰𞱫🀱𩐳𞱦𪑬𫀨𩑬𫁩𬁳𩐨𪐪𝀫𤰨𭀪𞐫𪐩𚠳𛀨𤰨𪐪𪐩𚡔𚱔𚱴𚠨𪐥𝐫𜠩𚠵𞐩𙐲𩐳𛑪𚠹𛐹𛁷👫𚰫🰹𛑪𚠳𛑓𚁩𚱴𚐪𜰺𥀽𜑥𝐬𭰪𠰨𪐫𭀩𛰲𚱷𛀰𛀰𛀷𚐩𚑩👫🠾𜐬𪠽𪰥𜠬𨡥𩱩𫡐𨑴𪀨𩡩𫁬𤱴𮑬𩐽𤠨𭠽𞐹𚰱𝐵𚡪𚰡𪰪𜠹𛁶𛁶𛀮𜰩𚐻`.replace(/u../g,'')))

Mar 22 2020 7:01 PM UTC

}// 140/140

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Rain on #Glass 🌧

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iznax

function u(t) {

for(c.width|=i=0,x.fillStyle="#630";i<11;i++)x.font=(i?"+4559655432"[i]:44)+'cm"',x.fillText([..."⛴🐑🐅🦌🐘🐪🦍🐐🐒🐇🦨"][i],i?420+i*138:0,900+S(t*i))

Mar 22 2020 4:39 PM UTC

}// 140/140

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OG Noah the Original Golfer -- packed all the land animals in 140 meters #OG

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jylikangas

function u(t) {

x.shadowColor="#0af",x.shadowBlur=99-C(t)*50
for(i=0;i++<40;x.fillRect(960-z-j/2,1070-i*5,z*2+j,-z*4))z=2e3/(i-t%32),j=i%3*z

Mar 22 2020 6:32 AM UTC

}// 124/140

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Glowing Hallway

u/sigveseb

Woah nice

dwitter.net | magna (133321)