Dweets awesomed by u/ciaccodavide

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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magna

remix of d/24349 by u/pavel

function u(t) {

for(i=5e3;i--;x.fillRect(960+s*X,540+s*(i&1?Y:-Y),1,1))X=2*(60*t%15-7)+C(a=i/7),Y=(4*t<<1)+S(a),s=200/Math.atan2(X*X,Y*i)

Nov 18 2021 5:19 AM UTC

}// 121/140

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u/Xen

nice!
u/UEZ

#ball #motion

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magna

remix of d/2381 by u/magna

function u(t) {

eval(unescape(escape`󩭯󬬨󥌮󭭡󫍵󩝏󩬽󣝡󭍨󛭲󨝮󩍯󫜬󨼮󬽴󮝬󩜮󨭯󮍓󪍡󩍯󭼽󨍩󫭳󩝴󘌰󘌤󮽔󚬱󞝽󬍸󘌹󩝭󘼶󝌲󨌬󭼽󨼮󭽩󩍴󪍼󟜰󛍩󟜹󞽩󛜭󞽸󦽦󧜨󭼪󥌬󜌬󥌬󭼩󛍸󦽦󧜨󭼪󥌬󭼪󥌬󞜬󥌩󚝦󬭡󫝥󙬱󙬦󮍛󩬽󙽦󪝬󫍒󩝣󭌧󧜨󝌰󜌫󪜪󜜰󜌫󤼨󭌩󚬳󜌰󛌴󜌰󚽓󚍴󧬵󚜪󞜬󝜰󛌲󜌰󚜻`.replace(/u../g,'')))

Nov 16 2021 3:52 AM UTC

}// 139/140

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Vintage #default

u/rep_movsd

I can hear the projector whirr in the background in my head
u/andrea270872

ditto... I was thinking of Laurel and Hardy music :D
u/donbright

lol

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stephanegeorget

remix of d/24314 by u/stephanegeorget

function u(t) {

h=50
c.width=9*h
for(j=9;j--;)for(i=0;i<6.3;i+=0.02)
x.lineTo(4*h+(l=4*((j+t)%9)*(7+Math.abs(C(m=j*i))**S(2*m)))*S(i),3*h+l*C(i))
x.stroke()

Nov 9 2021 9:49 PM UTC

}// 140/140

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#kraftwerk #antenna

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u/ciaccodavide

nice!
u/taupelink

cool!
u/rep_movsd

nice
u/rodrigo.siqueira

I like the curved curves. I made one using arcs ("x.arc"): d/16023 "I'm the Antenna / Catching vibration / You're the transmitter / Give information / Es Strahlen die Sender Bild, Ton und Wort / Elektromagnetisch an jeden Ort"
u/stephanegeorget

@rodrigo oh what a coincidence, I did not see it before - we’re on the same wavelength (pun intended) :)
u/magna

AWESOME!
u/tomxor

t*=2.4 SYNCHRONISE 🤖 https://www.youtube.com/watch?v=P1rezswXJ2c

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ciaccodavide

function u(t) {

c.width|=d=108/32
onclick=e=>x.isPointInPath(e.x*d,e.y*d)&&P++
x.arc(960+S(P**3)*900,540+C(P**33)*500,36,0,7)
x.fill()
throw P/~~t*100}P=1
{

Nov 9 2021 7:15 PM UTC

}// 140/140

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Mouse aim training #interactive

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rodrigo.siqueira

remix of d/23690 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
A=a=b=t/2;s=320
for(i=2e4;--i;b=A,A=a)x.fillRect(880+a*s,450+b*s,.5,.5),a=.2-b+Math.abs(a/2+1/b/2e3)*(A/5+1)+.1

Nov 9 2021 4:44 PM UTC

}// 136/140

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Dark cellmorphs

u/donbright

speechless.

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ciaccodavide

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𝀵𜀊𩠽𬀽🡻𩡯𬠨𪐽𝀵𜀻𪐭𛐻𚑸𛡬𪑮𩑔𫰨𪐬𜐲𝐫𤰨𭀪𬀯𜰫𪐯𞐩𚠲𜀩𒡸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𯐊𩡯𬠨𫠽𞐻𫠭𛐻𚑦𚁮𛁸𦱬🐧𫁩𫡥𥱩𩁴𪀧𧐽𝠬𮁛𬰽𙱳𭁲𫱫𩑓𭁹𫁥𙱝🐧𘱆𡡆𙰩𛁦𚁮𛁸𦱬𧐽𜠬𮁛𬱝🐧𘰰𜀰𙰩`.replace(/u../g,'')))

Nov 9 2021 10:13 AM UTC

}// 131/140

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u/magna

Awesome!

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ciaccodavide

remix of d/24314 by u/stephanegeorget

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𝀵𜀬𪠽𞐻𪠭𛐻𚑻𩡯𬠨𪐽𜐰𜀻𪐭𛐻𚑸𛡬𪑮𩑔𫰨𜠲𝐫𚁬🐲𝰪𚀨𪠫𭀩𙐹𚐪𚀱𚱍𨑴𪀮𨑣𫱳𚁃𚁩𚠮𜰱𝰩𚐩𚐪𤰨𪰽𪐪𛠰𝠳𝐩𛀱𝐰𚱬𚡃𚁫𚐩𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𯐠`.replace(/u../g,'')))

Nov 9 2021 8:27 AM UTC

}// 116/140

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#infinite #flower

u/rep_movsd

Nice - it has a pencil drawing look

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Joachim

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜼰󜌊󮬽󜭥󜼯󛼊󭽩󭍨󚍸󚝦󫽲󚍩󟜳󜌻󪜭󛜻󚝦󪝬󫍓󭍹󫍥󟝒󚍩󚬵󜌬󪜪󜬰󛌩󛍦󪝬󫍒󩝣󭌨󜜴󝜫󤼨󭌫󪜩󚬹󛍡󟜱󜜵󛝴󚬹󙝩󚬹󛍡󛼹󛍡󛼹󚜬󫝯󭭥󥍯󚌱󝜰󚽓󚍩󧬹󚜪󜼰󛌱󜼰󚜬󫍩󫭥󥍯󚌱󝜰󚽃󚍩󧬹󚜪󜼰󛌹󞜫󤼨󪜩󚬳󜌩󛍳󭍲󫽫󩜨󚜬󬭥󨽴󚌭󞜬󜜳󜌬󮬬󮬩`.replace(/u../g,'')))

Nov 8 2021 10:13 AM UTC

}// 140/140

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Camp #fire

u/tomxor

neat!
u/taupelink

nice
u/rep_movsd

cute :)

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rep_movsd

function u(t) {

[P,Q]=t?[A,B]:[0,1]
x.fillText(0,99*(B=Q*.8-P*.6)+960,99*(A=P*.8+Q*.6)+540)

Nov 5 2021 9:00 AM UTC

}// 75/140

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Circle2 #circlechallenge

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u/rep_movsd

This is based on an algorithm from "Electron Graphics and Sound" I read as a kid
u/rep_movsd

This is based on an algorithm from "Electron Graphics and Sound" I read as a kid
u/rep_movsd

We calculate a sine and cosine of a small angle delta initially, and thereafter derive them using trig identities using only addition and multiplication
u/rep_movsd

It so happens that C(O) and S(O) are almost exactly 0.8 and 0.6 for some O
u/rep_movsd

I found those by for(N=0.1;N<1;N+=.1) M=(1-N*N)**.5,console.log(N,M)
u/rep_movsd

Can be 67 bytes
u/rep_movsd

Can be 67 bytes
u/rep_movsd

[P,Q]=t?[P*.8+Q*.6,Q*.8-P*.6]:[0,1] x.fillText(0,99*Q+960,99*P+540)

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ciaccodavide

function u(t) {

eval(unescape(escape`𘑴𙠦𚁤👛𨐽𭠽𜁝𛁘👙🐹𞐬𫱮𪱥𮑤𫱷𫠽𩐽🡤𦱥𛡫𩑹𠱯𩁥𛐳𝱝🐱𛁯𫡫𩑹𭑰👥🐾𩁛𩐮𪱥𮑃𫱤𩐭𜰷𧐽𜀩𛁸𦱦🐧𩡩𫁬𤡥𨱴𙱝𚁘𚰽𭠪𠰨𨐫🐨𩁛𜡝𯀭𩁛𜁝𚐪𛠱𚐬𦐫👶𚡓𚁡𚐬𬰽𜰲𛁳𛁸𦱦𧐨𦀫𠰨𨐩𚡳𚰸𛁙𚱓𚁡𚐪𬰫𞀬𞐬𞐬𭠽𝠩𚐠`.replace(/u../g,'')))

Nov 4 2021 9:43 AM UTC

}// 133/140

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driving a paintbrush #interactive

u/ciaccodavide

left and right arrow to control the brush direction (if it gets out of bounds restart the dweet)
u/ciaccodavide

try this version in a new dweet (acceleration control with up arrow, but I couldn't golf it enough): !t&&(d=[a=v=0],X=Y=99,onkeydown=e=>d[e.keyCode-37]=1,onkeyup=e=>d[e.keyCode-37]=0),x[f='fillRect'](X+=v*C(a+=(d[2]|-d[0])*.1),Y+=v*S(a),s=32,s,x[f](X+C(a)*s+8,Y+S(a)*s+8,9,9,v+=d[1]&v<6?2:v>0?-.1:0))
u/Joachim

`t?onkeydown=e=>d[e.keyCode-37]=1:(d=[a=v=X=Y=0]),onkeyup=e=>d[e.keyCode-37]=0,x[f='fillRect'](X+=v*C(a+=(d[2]|-d[0])*.1),Y+=v*S(a),s=32,s),x[f](X+C(a)*s+8,Y+S(a)*s+8,9,9),v+=d[1]&v<6?2:v>0&&-.1

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