Dweets awesomed by u/stefano

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: #Opposites

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wpower3

function u(t) {

X=1920;Y=1080;Z=14;
for(i=0;i<X*Y/(Z*Z);i++){
  J=Math.floor(i/(Y/Z))
  I=i%(X/Z)
  if(Math.random()>0.99){x.fillRect(I*Z,J*Z,Z,Z)}
}

Dec 26 2020 3:36 PM UTC

}// 134/140

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First Dweet! Its nice when bugs == pretty things.

u/wpower3

I was trying to learn the environment by implementing some 2d-as-1d indexing, and messed up my reasoning. The result still looked cool, though!
u/Xen

Welcome to the dwitter family!
u/wpower3

Thanks! :)
u/ciaccodavide

Making errors is one way to learn and discover new things! ;)

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Blacklink

function u(t) {

c.width|=0
for(i=1;i<99;i++){x.save()
x.translate(i*20,540)
x.rotate(i*(Math.pow(t,1.3))*.001+t)
x.strokeRect(-50,-200,99,400)
x.restore()}

Dec 24 2020 1:26 PM UTC

}// 139/140

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The twisting of a rectangle

u/ciaccodavide

Nice!

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rodrigo.siqueira

remix of d/20959 by u/jellyedwards

function u(t) {

c.style.filter=`invert(`
for(e=k=c.width|=w=50;k--;x.fillRect(w|x.rotate(k%w+t/4),9,1,1))
x.setTransform(v=2+k%7,0,0,v,k,(k*k+t*v)*w%e-w*8)

Dec 15 2020 6:23 PM UTC

}// 139/140

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Night snow #snowflake

u/Xen

smooth!
u/pavel

Nice. Here's 126, maybe room for snowflake code with(x)for(fillRect(0,0,i=2e3,i);i--;)clearRect(50,9,!setTransform(s=2+i%7,0,0,s,i,i&&(i*i+t*s)*50%2e3-400),i&&!rotate(i+t/4))

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katkip

function u(t) {

c.width*=1;
c.style.filter="blur(1em)contrast(39)";
for(Z=51;Z--;)x.beginPath(),x.fill(x.arc(960+S(Z*9-t)*20*Z,540+C(Z-t)*20*Z,80,0,7))

Dec 15 2020 12:18 PM UTC

}// 135/140

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u/Xen

nicely done
u/joeytwiddle

#metaballs

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(X,540+200*C(a),-150,7))X=i%960*2,x.fillStyle=`hsl(${q=X/8+60*t},69%,${42+32*S(a=(q/32%1+(i>960))/.32)}%`

Dec 4 2020 8:45 PM UTC

}// 136/140

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Ribbons

u/pavel

Dynamically swapping the draw order to get proper overlapping. Change i>960 to 1 or 0 to see how this works.
u/Qwitter

cool, and thanks!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𮠽𞐹𒡴🱃🱔𚰽𛠰𜰺𜀺𥠽𦐽𥀽𜐊𩡯𬠨𪐽𝐻𪐭𛐻𪑼𯁔𙐱🀮𝠿𢀽𪀺𜀩𪠽𪐫𥁼𜀬𮀮𩡩𫁬𤡥𨱴𚀨𪠭𥀩𚠲𞐬𪀽𝀰𛐹𚡓𚁪𚡪𚐬𜠷𛁺𚐊𮀮𩡩𫁬𤡥𨱴𚀹𛁙𚰽𥠫🐮𜀷𛀴𛀭𝰩𒡯𫡭𫱵𬱥𩁯𭱮👙🡈🱙𚰨𥠽𜀩🡈𚰳🱃🐰𞠨𦐽𢀬𩐽🡖🐭𜠩𞠰𒡴𪁲𫱷𘁪`.replace(/u../g,'')))

Dec 2 2020 5:45 AM UTC

}// 140/140

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Platform Runner Game - Click to Jump!

u/katkip

awesome!! #interactive #game
u/jellyedwards

very good, nice little death sequence too!
u/aleamb

amazing!
u/tomxor

Dude!!!!!
u/rodrigo.siqueira

So far, my favorite dwitter game!!

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=Math.PI/4+(p+p/4&1||-1)*(369/13*d+3*t)),240+p%4*200+130*S(a),d,d))d=i%120/9,p=i/120|0

Dec 1 2020 8:51 PM UTC

}// 140/140

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#beesandbombs demake https://twitter.com/beesandbombs/status/1327…

u/rep_movsd

If you stare a bit, you see white lines completing the circles - an optical illusion
u/danny@hille.dk

save 9 bytes for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+130*S(a),d,d))p=i/120|0,d=i%120/9
u/danny@hille.dk

120/9 = 40/3
u/danny@hille.dk

129 bytes -> for(m=120,i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+m*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+m*S(a),d,d))d=i%m/9,p=i/m|0

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𝠰𜀬𠠽𦱝𛁩🐱𞀻𪐭𛐻𮀮𨡥𩱩𫡐𨑴𪀨𮀮𬱴𬡯𪱥𚀩𚐩𮀮𨑲𨰨𦀽𜰰𜀫𤰨𬀽𜐮𜀴𝰪𪐭𭀩𚠨𩀽𝠴𚠨𪐯𝡼𜀩𚐬𦐽𜐶𞐫𠰨𬀩𚡤𛀳𜠬𜀬𝰩𛁂𛡰𭑳𪀨𦱘𛁙𧐩𒡂𛡭𨑰𚁶🐾𠠮𫑡𬀨𬐽🡻𮀮𫁩𫡥𥁯𚀮𛠮𭠩𛁸𛡬𪑮𩑔𫰨𛠮𛡱𚑽𚐩𛁸𛡳𭁲𫱫𩐨𚐻`.replace(/u../g,'')))

Dec 1 2020 5:48 PM UTC

}// 140/140

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u/rodrigo.siqueira

METATRON'S CUBE, an example of sacred geometry. It's used as a mystical object that spins the energy of our thoughts and provides a visual focal point for meditation.
u/cantelope

relevant: https://code.whitehotrobot.com/d/2w6u
u/pavel

-15 chars for(c.width=600,B=[i=18];i--;x.beginPath(x.stroke()))d=i/6<<6,x.arc(...B[i]=[300+S(p=1.047*i-t)*d,169+C(p)*d,32,0,7]);B.map(v=>B.map(q=>x.lineTo(...v)+x.lineTo(...q)));x.stroke()
u/cantelope

nice
u/cantelope

also, https://codegolf.dweet.net/a/491
u/katkip

amazingg

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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femto113

function u(t) {

c.width=1920
X=960,Y=540,P=Math.PI,N=t/P%32,p=P/N
for(i=0;i<P;i+=p)x.fillRect(X+Y*(S(i+P)-S(i))/2*S(t+i),Y+Y*(C(i+P)-C(i))/2*S(t+i),19,19)

Nov 14 2020 8:31 AM UTC

}// 138/140

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linear motion rolling circle illusion

u/katkip

#illusion
u/DataMeta

nicely done
u/pavel

If you delete c.width=1920 you can see only the first dot move linearly
u/femto113

curves are a side effect of changing N with t, if you use a fixed value like N=16 you get straight lines

dwitter.net | stefano (11998)