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.

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Current theme challenge: #Food

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taupelink

remix of d/14990 by u/taupelink

function u(t) {

t||x.translate(960,b=540,A=[b,d=e=0,-b,0,b,0]);for(i=b;i--;)l=.5+S(i)/10,d+=(A[r=Math.random()*4|0]-d)*l,e+=(A[r+1]-e)*l,x.fillRect(d,e,1,1)

Jul 14 2019 1:25 PM UTC

}// 140/140

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Remix with four points

u/taupelink

some pattern details are just an artifact of the "S(i)" (sine of i radians) in the golfed code
u/donbright

nice

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New_Core

function u(t) {

c.width|=Y=0
window.innerHeight==screen.height?(a="ɹǝʇʇᴉʍp 🤣",Y=300*S(t%3.14)):a="?"
x.font="6cm'"
x.fillText(a,900-Y*S(t)-Y,540+Y)

Jul 14 2019 12:36 PM UTC

}// 131/140

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joeytwiddle

function u(t) {

t||(Y=0)
onmousemove=e=>{Y=e.pageY*.7}
c.width=568;for(y=320;y--;x.fillRect(0,y,568,1))x.fillStyle=`hsl(${30*((y-Y)/30|0)},99%,50%`

Jul 14 2019 5:01 AM UTC

}// 131/140

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Broken parallax scrolling effect (only works if you wiggle your mouse over the dweet while you scroll the page)

u/joeytwiddle

I tried various things but I couldn't find any way for the iframe to know when it has been scrolled. :-/
u/katkip

It impossible. Iframe's cursor doesn't update if mouse isn't moving inside iframe

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taupelink

remix of d/14810 by u/Fime

function u(t) {

t||x.translate(960,b=540,A=[d=e=0,-b,b,b]);for(i=b;i--;)l=.5+S(i*b)/10,d+=(A[r=Math.random()*3|0]-d)*l,e+=(A[r+1]-e)*l,x.fillRect(d*2,e,1,1)

Jul 14 2019 4:41 AM UTC

}// 140/140

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Variant where the distance scale factor is 1/2 plus-or-minus a little bit. Also some code golfing

u/taupelink

I think some of the pattern details are an artifact of the way I golfed the code...of whatever the values of sin(i*540 radians) are, for integers i=0,...,539
u/Xen

sexy

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williambellwisdo

function u(t) {

c.width*=1;for(i=399;i--;x.globalAlpha=.3)x.beginPath(),x.ellipse(960+C(i)*70,540+S(i)*70,100,300,Math.floor(C(i/3+t)),0,7),x.stroke()

Jul 13 2019 7:59 AM UTC

}// 134/140

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Riff off of Katkip's great dweet two days ago. This is what happens if you floor the rotation angle.

u/joeytwiddle

Nice! If you edit another dweet you can hit Remix to post it.
u/katkip

^

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𫀽𨰮𭱩𩁴𪁼👴𙐽𝀻𫀭𛐻𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀵𜀬𫰿𝐰𞠱𩐳𚐩𪐽𫀥𜰬𪠽𫀯𜰦𜐵𛁫👬𛰴𞀦𜐵𛁸𛡦𪑬𫁓𭁹𫁥👒𚁩𚰱🀼𝠩𛁸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𪐭𜑼𜐬𛐮𝐬𫰽𛑩𙐲𛀱𚱯𚠱𛠵𛀵𜀪𚀱𞐫𪰭𪠩𛀲𝐪𚀳𞀫𜠪𭀭𪰭𪠭𞀯𚀱𚰲𚠪𚀴𝐭𪰭𪠭𭀪𜐵𚐩𚐩`.replace(/u../g,'')))

Jul 13 2019 3:37 AM UTC

}// 138/140

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Blocks (https://dribbble.com/shots/1783699-Blocks)

Show more comments…
u/pavel

190 for(l=c.width|=t%=4;l--;x.fillRect(0,0,50,o?50:1e3))i=l%3,j=l/3&15,k=l/48&15,x.fillStyle=R(i+1<<6),x.setTransform(i-1|1,-.5,o=-i%2,1+o*1.5,50*(19+k-j),25*(38+2*t-k-j-8/(1+2**(45-k-j-t*15))))
u/KilledByAPixel

👍
u/aleamb

wow!!
u/username

actual f
u/katkip

awesome #compressed
u/katkip

#d3 #loop

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katkip

function u(t) {

c.width*=1;for(i=399;i--;x.globalAlpha=.3)x.beginPath(),x.ellipse(960+C(i)*70,540+S(i)*70,100,300,C(i/3+t),0,7),x.stroke()

Jul 11 2019 5:48 PM UTC

}// 122/140

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#abstract

u/aleamb

great!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𬠽𧰽🡓𚁱𚠪𫠫𚰩𚠹𯀰𞱡👦🐾𜠪𬠨𚐪𩠨𬠨𚐪𭀩𞱔👦🐾𨐨𩠩𚱡𚁦𚐫𨐨𩠩𚰶𜀻𩡯𬠨𪰽𪐽𜐴𝀻𬐽𚁴𛰳𝠭𪐯𪰫𞐹𯀰𚐪𪐭𛐻𚁩𛑴𚠴𯀰𚐥𪰿𮀮𩡩𫁬𤡥𨱴𚁘𚱔𚁓𚐬𦐫𥀨𠰩𛁺🐲𚱲𚀩𛰹𛁺𚐺𮀮𨱬𩑡𬡒𩑣𭀨𦀬𦐬𤠽𜐲𜀬𤠩𚑘👩𙐱𝠪𤠬𦐽𚁩🠾𝀩𚡒𛁮🐳`.replace(/u../g,'')))

Jul 11 2019 3:48 PM UTC

}// 140/140

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𝕊𝕥𝕣𝕒𝕟𝕘𝕖𝕣 𝕊𝕪𝕞𝕓𝕠𝕝𝕤

u/KilledByAPixel

Each symbol uses 3 circles instead of the normal 2 for a #Spirograph.
u/donbright

damn

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New_Core

function u(t) {

for(c.width|=i=400;i--;i%99<1?x.beginPath(x.fill()):0)b=99**S(t+i/30)+50,x.lineTo((b/S(a=i/63)+960),(b/C(a)+540))

Jul 10 2019 10:23 PM UTC

}// 113/140

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u/katkip

awesome!
u/magna

Neat!

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username

remix of d/14971 by u/username

function u(t) {

for(a=_=140;--a;x.fill()){x.beginPath(x.fillStyle=R(5*($=_*S(a+t)),$+_,$+a*2))
for(i=3;i--;)x.lineTo(960+C(z=t+T(i)+a)*a*9,540+S(z)*a*9)}

Jul 10 2019 5:04 PM UTC

}// 138/140

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shiny deadly rotation

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