Dweets awesomed by u/andrea270872

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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donbright

remix of d/23883 by u/donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X^Y)) x.fillRect(格*X,格*Y,格,格)

Sep 19 2021 5:48 PM UTC

}// 126/140

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Prime fun 2 / 3 - Normally X binary XOR with Y produces a single white line, but if we only draw black when X XOR Y is a prime number, then we get a pattern. #math #primes

u/donbright

(note i have flipped black/white in my caption, actually its drawing black when the number is not prime)
u/rep_movsd

Fascinating
u/Joachim

#circuit

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donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X&Y)) x.fillRect(格*X,格*Y,格,格)

Sep 19 2021 5:40 PM UTC

}// 128/140

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Prime fun 1 / 3 - This is the standard X&Y (binary AND) Sierpinski triangle picture but only where X & Y is a prime number. perhaps revealing a relationship between primes and binary AND #math #primes

u/donbright

(note white = X&Y is prime, black = X&Y is composite)
u/andrea270872

this is really nice. retro and mathsy at the same time!
u/donbright

#Sierpinski

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Joachim

function u(t) {

eval( unescape(escape`󮬽󨼮󭽩󩍴󪌽󜼰󜌊󫽮󫝯󭝳󩝭󫽶󩜽󩜽󟭘󟝥󛭸󒭸󛭧󫍯󨭡󫍁󫍰󪍡󟜮󝼊󩭯󬬨󪜽󭼽󞜹󞜻󪜭󛜻󚝸󦽦󟜧󩭩󫍬󤭥󨽴󙽝󚍩󚬹󛜹󛝘󛼲󛌱󝼰󛌹󛍡󟜭󜼰󛜴󜌥󤼨󪜩󚬴󜌩󛌊󮍛󩭝󚍩󚬹󛜹󛝘󛌱󝼰󛌹󛍡󚼱󝜩󒭦󫽲󚍩󟝷󞽩󛜭󞼩󮍛󩭝󚍩󛝘󛽃󚍓󚍺󚼫󚜩󛍴󙝔󚍩󚜪󞜹󛌱󛌱󚜻`.replace(/u../g,'')))

Sep 19 2021 8:03 AM UTC

}// 140/140

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Hover mouse over iframe #interactive

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hvianna

remix of d/23869 by u/hvianna

function u(t) {

s=t?r&m?-s:s:r=3/(m=512);c.width|=0;for(i=o=t;o<t+50;r+=s)x.stroke(new Path2D('M'+[m+r*S(i+=.17),m+r*C(i)]+'L'+[m+m*S(o+=.1047),m+m*C(o)]))

Sep 18 2021 2:48 PM UTC

}// 139/140

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shaved some extra bytes off and managed to get the ratio I was originally aiming for

u/donbright

really fun to play around with that o+=.1047 term.
u/donbright

and the i+= term as well. really cool

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danny@hille.dk

function u(t) {

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,1/z,z),d=(r=(X=i/90*(g=2+C(t))-g)*X+(Y=j/90*g-g/1.7)*Y)>1?0:C(r)/9,z=C(X/d-t*9)*Y/d

Sep 18 2021 1:09 PM UTC

}// 137/140

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Alien spaceship

Show more comments…
u/donbright

wow
u/danny@hille.dk

soo many shapes hidden in this dweet!!! ED:z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,z,1/z),d=(r=(X=i/w*(g=2)-g/2)*X-(Y=j/w*g-g/1.7)*Y)>1?0:C(r)/9,z=C(X/d)/S(Y/d-9-t*19)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,z,1/z),d=(r=(X=i/w*(g=2)-g/2)*X-(Y=j/w*g-g/1.7)*Y)>1?0:C(r)/9,z=C(X/d)*S(Y/d-9-t*19)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,z,1/z),d=(r=(X=i/w*(g=2)-g/2)*X/(Y=j/w*g-g/1.7)*Y)>1?0:C(r)/9,z=C(X/d)+S(Y/d-9-t*19)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,z,1),d=(r=(X=i/w*(g=2)-g/2)*-X+(Y=j/w*g-g/g)*Y)>1?0:C(r)/9,z=S(X/d*r)-C(Y/d-t*9)
u/donbright

a lot of those are worthy of a remix !
u/donbright

(new dweets i mean)
u/danny@hille.dk

Thanks mate, might do that later :-)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w,z,2/z),d=(r=(X=i/w*3-1.5)*X/(Y=j/w*3-1)*Y)>1?0:C(r)/9,z=T(X/d-t*9)*T(Y/d+t*9)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;d=(r=(X=i/w*4-2)*X+(Y=j/w*4-1.2)*Y)>1?-.2:C(r)/9,z=T(X/d-t*9)*T(Y/d+t*9))x.fillRect(i=m%w,j=m/w,z,2/z)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;d=(r=(X=i/w*4-2)*X+(Y=j/w*4-1.2)*Y)>1?-C(.05-t):C(r)/9,z=T(X/d-t*9)*C(Y/d+t*9))x.fillRect(i=m%w,j=m/w,1/z,z)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;d=(r=(X=i/w*4-2)*X+(Y=j/w*4-1.2)*Y)>1?0:C(r)/9,z=T(X/d-t*9+C(Y/d+t*9)))x.fillRect(i=m%w,j=m/w,z,2/z)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;d=(r=(X=i/w*4-2)*X-(Y=j/w*4-1.2)*Y)>1?-.04:C(r)/9,z=T(X/d-t*9+C(Y/d+t*9)))x.fillRect(i=m%w,j=m/w,z,2/z)
u/danny@hille.dk

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(i=m%w,j=m/w|0,1/z,z),d=(r=(X=i/w-.5)*X+(Y=j/w-.35)*Y)>.4?0:C(r)/9,z=C(X/d-t*9)*S(Y/d+S(t)*9)
u/ciaccodavide

wow!

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Quant1um

function u(t) {

eval(unescape(escape`𨰮𫱮𨱬𪑣𪰽𩐽🡻𨐽𫡥𭰠𠑵𩁩𫱃𫱮𭁥𮁴𚀩𛁯👡𛡣𬡥𨑴𩑏𬱣𪑬𫁡𭁯𬠨𚐬𫰮𨱯𫡮𩑣𭀨𨐮𩁥𬱴𪑮𨑴𪑯𫠩𛁯𛡦𬡥𬑵𩑮𨱹𛡶𨑬𭑥🐴𝀰𚠲𚠪𚁛𜀬𜰬𝐬𝰬𜐰𛀱𜡝𦰨𣑡𭁨𛡲𨑮𩁯𫐨𚐪𝠩𯀰𧐯𜐲𚐬𫰮𬱴𨑲𭀨𚐬𫰮𬱴𫱰𚀮𜐩𯐊`.replace(/u../g,'')))

Sep 17 2021 6:35 AM UTC

}// 129/140

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#music #interactive

u/Quant1um

Plays a random note from A minor pentatonic scale when clicked
u/andrea270872

cool
u/donbright

wheeeee

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rodrigo.siqueira

function u(t) {

!t&&x.rotate(.7,x.fillRect(0,0,Z=2100,Z),x.translate(Z,0))
for(i=4;i--;x.fillRect(i*50,t*999,50,50))x.fillStyle=`hsl(${i*66},90%,50%,99%)`

Sep 16 2021 9:57 PM UTC

}// 138/140

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Sinclair ZX Spectrum #tribute RIP Sir Clive Sinclair

u/donbright

nice

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Quant1um

function u(t) {

eval(unescape(escape`𮐽𞐰𜀻𭁼𯀨𪠽𦱝𛁣𛡯𫡭𫱵𬱥𫑯𭡥👥🐾𮱪𦰰𧐽𩐮𮀪𜰬𪡛𜑝👥𛡹𚠳𯐩𞱦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜀻𪐼𮐻𚑸𛡦𪑬𫁒𩑣𭀨𫠽𪡛𪑝𛁭👪𦰫𚱩𧐬𝐬𝐩𛁤👍𨑴𪀮𪁹𬁯𭀨𬐽𪡛𚰫𪑝𛑮𛁷👪𦱩𚰱𧐭𫐩𛰵𚰱𛁪𦱩𧐽𫠫𬐯𩁼𯀰𛁪𦱩𚰱𧐽𫐫𭰯𩁼𯀰`.replace(/u../g,'')))

Sep 16 2021 9:41 PM UTC

}// 133/140

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a piece of string #interactive

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u/magna

Fun!
u/Joachim

#smooth #floppy
u/Xen

love it!
u/cantelope

gr8
u/rep_movsd

Super
u/cantelope

i was inspired: https://code.dweet.net/full/2w9v sauce:https://code.dweet.net/prettycode/2w9v

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pavel

remix of d/23829 by u/pavel

function u(t) {

for(c.width=w=128,i=n=9088,t?a[n*t**3&127]=1:a=[],m=a.includes(0,-w);i--;a[i]=t?p&a[r=i+w]<1?a[r]++:r<n|m&&p:0)x.fillRect(i%w,i>>7,1,p=a[i])

Sep 16 2021 3:53 AM UTC

}// 140/140

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#tetris #snow

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u/KilledByAPixel

Genius.
u/Joachim

Wow. This is very clever
u/rodrigo.siqueira

Now I can't look at city buildings without thinking about this. See https://en.wikipedia.org/wiki/Tetris_effect The Tetris effect (also known as Tetris syndrome) occurs when people devote so much time and attention to an activity that it begins to pattern their thoughts, mental images, and dreams. E.g. People who have played Tetris for a prolonged amount of time can find themselves thinking about ways different shapes in the real world can fit together, such as buildings on a street.
u/Xen

love it!
u/magna

Fun to watch! :)
u/tomxor

@rodrigo I think I have The Dwitter Effect, or "Dwitter Syndrome" :D i'm not even joking
u/sigveseb

Nice idea! As an added bonus, if you leave it running for a while you get a graph of the prng bias for free :)

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sandromiccoli

remix of d/23857 by u/sandromiccoli

function u(t) {

for(a=50;a--;)x.beginPath(),x.arc(960+C(s=(137.5*a))*(r=a*t%300*1.5),540+S(s)*r,50-(a*S(t))%50,0,7),x.stroke(),x.fillStyle=`#f00a`,x.fill()

Sep 15 2021 2:03 AM UTC

}// 139/140

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