Dweets awesomed by u/KilledByAPixel

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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BriSeven

remix of d/547 by u/BriSeven

function u(t) {

X=960,Y=80+1080*t%900,a=1;for(i=99;--i;)x.fillStyle=T(a)<9?R(99,a,255,.3):"#F7F",x.fillRect(X+=S(a)*Y/50,Y+=C(a)*4,8,8),a+=7*Math.random()

Dec 4 2021 5:40 AM UTC

}// 138/140

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Merry Transmas (more like CGA-mas)

u/rep_movsd

Try R(a/2,180,30,.3)

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vain

function u(t) {

for(i=40;i--;){for(j=23;j--;){p=t*Math.sqrt(((i-20)**2)+(j-11)**2+t);x.fillRect(i*48,j*48,p,p)}}

Dec 3 2021 9:27 PM UTC

}// 96/140

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[vn-01] Black out - by va!n

u/vain

if you want some colors...
u/vain

if you want some colors...
u/vain

for(i=40;i--;){for(j=23;j--;){p=t*Math.sqrt(((i-20)**2)+(j-11)**2+t);x.fillStyle=R(i*6,j*6,p);x.fillRect(i*48,j*48,p,p)}}
u/Tranquil

Great work!
u/vain

This is my very first attempt with js and canvas programming

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KilledByAPixel

function u(t) {

eval(unescape(escape`󬬽󚍲󛍰󟜷󚜽󟭍󨝴󪌮󬭡󫭤󫽭󚍆󟜳󩜳󚜪󚭰󚭲󯌰󒭸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󙍻󨜽󬬨󞜬󜜩󚬵󜝽󘌷󜌥󙍻󭌿󨜥󝬰󞬹󜍽󙝠󒭳󟜨󪌽󬬨󡬩󚜫󬬨󝜰󚜊󭼽󬬨󜼰󜌩󒭴󚬽󝬰󒭦󫽲󚍩󟝲󚌹󞜩󚼱󞽩󛜭󞼩󮌮󩭩󫍬󤭥󨽴󚍆󚭓󚍴󚭴󚜬󭌫󪜪󬼬󭌿󭼺󡬬󭌿󪌺󡬩󒭸󛭲󫽴󨝴󩜨󜜮󝜷󜌸󚜻`.replace(/u../g,'')))

Dec 2 2021 8:27 PM UTC

}// 140/140

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Demake of Anamnesis by Landlines https://twitter.com/landlinesart1/status/146…

u/KilledByAPixel

#waitforit - Takes about 30 seconds to finish drawing
u/KilledByAPixel

#fxhash

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anotherkitten

function u(t) {

for(Y=j=0;j<7;j++)for(i=2e3;i--;x.fillRect(i,j>2?500+j*(Y=19):Y,j<3||.2,1080-Y*2))x.fillStyle=R(B=45-j*29+j*j*7,B,B*2),Y-=S(j*i**.52>>2)*j/2

Dec 2 2021 7:02 PM UTC

}// 140/140

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lake and mountains

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tomxor

remix of d/24387 by u/pavel

function u(t) {

for(i=128;i--;x.fillRect(704+X-s*4.5,Y+s*3.5,s,s))s=t?16:(X=i%4<<8,Y=i/4<<8,b=32),b&1?X+=b%4-2:Y+=b%4-1;b+=468199>>t*60%21&1

Nov 28 2021 6:23 PM UTC

}// 124/140

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Smolr Fastr Pen Pattern

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u/tomxor

... but less satisfying
u/cantelope

first time, ever, i've seen an improvement on any of pavel's designs :)
u/tomxor

True, Pavel's dweets are pretty tight. Usually the most I can hope for is -1 char :P
u/tomxor

d/24387 restored the slow draw, and removed the for loop for only +1 char
u/tomxor

Sorely missing an edit button: I mean d/24396
u/vain

amazing code and algo!

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pavel

function u(t) {

for(s=i=16<<!t;i--;x.fillRect(t?X+=C(a=b/.63662):(b=X=576,Y=138,608+i%4*224),t?Y+=S(a):186+(i>>2)*224,s,s))f=frame/7%21
b+=1282675>>f&!(f%1)

Nov 26 2021 8:38 PM UTC

}// 140/140

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Pen Pattern

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u/pavel

Source: https://www.reddit.com/r/oddlysatisfying/com…
u/pavel

1282675 encodes the 'turn right' or 'straight' orders in binary, >>f&!(f%1) checks them on frames when f is an integer.
u/tomxor

Satisfying, looks like a recursive "Bowen Knot"
u/leafyvez

so beautiful
u/rep_movsd

This looks like the traditional "kolam" that Indians traditionally draw in front of the house
u/rep_movsd

Changing that 1282675 makes different patterns
u/leafyvez

u/rep_movsd exactly my thoughts!
u/magna

Awesome!
u/tomxor

-1 b+=468199
u/tomxor

(0b1110010010011100111)
u/tomxor

Oops, you have to flip X and shift it a bit, then it's -1
u/pavel

If you start with 0 and simultaneously replace 0 with 1 and 1 with 001 you will generate this sequence and bigger ones.
u/pavel

Similarly, if you start with 1s and replace s with s1s00s1s and ignore s when drawing.
u/pavel

I invented the second method. The first one I found by putting my hand-made small sequence into https://oeis.org .
u/CalSch

It's the command key but more complex

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ArthurThuczsec

remix of d/5700 by u/Bugsy

function u(t) {

i=c.width|=c.onmousemove=e=>{X=e.x/.3,Y=e.y/.3};for(a=410;i--;)x.fillRect(i,a+a*C(X*i)*S(((Y-i)+a*t)/a),.7,67);

Nov 23 2021 5:18 PM UTC

}// 111/140

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u/magna

tip: you can get rid of the initial "reference error: X is not defined" error by hijacking one of the globals that you're not using in your dweet: R, T, C, S

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taupelink

remix of d/24363 by u/taupelink

function u(t) {

for(m=1e3;X=1+S(6*m),Y=S(7*m*m--);x.fillRect(1e3*X,540*(1+Y),i/t/t,m/4/t))i=m%256,x.fillStyle=R(i,i*=.95+C(Y/6+t)/9/t,i*=.9+S(X/2+t)/9/t,.1)

Nov 23 2021 4:21 AM UTC

}// 140/140

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d/24370

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u/rep_movsd

"The office"
u/neimad

Best one yet
u/KilledByAPixel

nice!
u/rep_movsd

Try making big boxes - it looks like Cubism when zoomed
u/magna

Soft shadows!
u/nerkraof

wow

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leafyvez

function u(t) {

eval(unescape(escape`楦⡴㰱〩筢㴳⸱㐊景爨爽孫㵩㴰崻⬫椼㄰⩴㬩牛楝㵫⬽款椦爮楮摥硏昨欭椩㰰㼭椺椬砮扥杩湐慴栨⤬砮慲挨㔰⬸⨨䵡瑨⹭楮⡲孩ⴱ崬牛楝⤫椯㈩ⰵ㐰ⰴ⩩Ⱪ┲⩢Ȿ椥㈪戩ⱸ⹳瑲潫攨⥽`.replace(/u([^D].)/g,'$1%')))

Nov 21 2021 1:41 PM UTC

}// 131/140

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Recamán's sequence!

u/leafyvez

https://en.wikipedia.org/wiki/Recam%C3%A1n%2…
u/leafyvez

learnt the beautiful trick (r[i]=x+= ... ) from https://codegolf.stackexchange.com/a/37639
u/leafyvez

might have to zoom in / fullscreen to avoid moire(?) pattern

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DaSpider

function u(t) {

t?n="㪫뉉쾪Ⓩﳁ⨼㭓늣說꣜뺪ຣ見蝑鈻蛴㊂꫑톎汫㏳眇踇ೊ冂ꪠਢࠀ".codePointAt(c++):c=b=0
for(i=8;i--;n/=4)document.write(c>29?'':[...'░▄▀█'][n%4|0]+(++b%21?"":"<BR>"))

Nov 21 2021 1:17 PM UTC

}// 137/140

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Unicode text #QRcode decoder

u/KilledByAPixel

looks cool but not sure it is working quite right for me, links to bit.do/rgn
u/DaSpider

That's my old site I used for testing. Opens only in HTTP (unsecured).

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