Dweets awesomed by u/baon

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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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👦👧🐾𚁫𙐱𝠦𙠱𚱫𙐲𚠮𝀱𝀩𚡧𚁡🐮𝰸𝐴𚠨𪰫𜠯𚀱𚰱𩐳𚠪𚁴𙐱𚠴𛑩𚐩𚐩𛁫🐵𝰻𪐽𛐭𪰾🠴𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𝰰𜀪𦀯𮠭𬰬𝐴𜀫𝰰𜀪𦐯𮠭𬰬𬰪🐲𛁳𚐩𦱘𛁙𛁚𧐽𦱘👦𚁃𚐬𪐭𜠬𩠨𤰩𛁘𛁩𛐲𧐮𬱬𪑣𩐨𭀥𜰩𛁺🐳𚱚𛁳🐹𞐯𮠯𮠻`.replace(/u../g,'')))

Jun 19 2019 3:43 AM UTC

}// 139/140

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Rubik's Cube Movement

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u/pavel

191 for(c.width|=f=g=>(k%16&&1+k%2*.414)*g(a=.7854*(k+2/(1+1e3**(t%1*4-i)))),k=57;i=--k>>4;x.fillRect(960+700*X/z-s,540+700*Y/z-s,s*=2,s))[X,Y,Z]=[X=f(C),i-2,f(S),X,i-2].slice(t%3),z=3+Z,s=99/z/z
u/katkip

too good.
u/username

Rubik's Cubes cannot move the middle layer
u/pavel

If you hold the sides the middle moves, no? How could it not!
u/pavel

Here are notation-only moves for(c.width|=f=g=>(k%16&&1+k%2*.414)*g(a=.7854*(k+y*2/(1+1e3**(t%1*4-i)))),k=57;i=--k>>4;x.fillRect(960+700*X/z-s,540+700*Y/z-s,s*=2,s))[X,Y,Z]=[y=i-2,X=f(C),f(S),y,X].slice(t%3),z=3+Z,s=99/z/z
u/username

Technically you are moving both sides at the same time in that case instead of moving the middle layer.
u/katkip

^
u/pavel

That's not what technically means. You have a mental model that only permits sides to move, and you have that model because adding middle rotations would be notationally redundant in that model. This does not mean middle rotations are somehow impossible or that they definitely consists of two side rotations.
u/username

Erm, the middle layer is attached to the core, that is what I mean. It is about the construction of a Rubik's Cube.
u/username

http://www.madehow.com/images/hpm_0000_0007_…
u/pavel

Still seems like this is a matter of perspective. You are chosing a perspective in which the core is always fixed, even though the motion I am describing specifically involves holding the two sides fixed and rotating the core... In my reference frame the core is rotating. So what if the core contains more parts than the side pieces when you take the cube apart?
u/13thptr

that escalated quickly
u/donbright

maybe they dont actually move like this... but they should!

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱴𯁼𚁱🐰𚐻𩠽𚁡𛁢𛁣𛁤𚐽🡻𨐫👃𚁣𚐪𩀬𨠫👓𚁣𚐪𩀬𞐬𞐻𩀾𜐿𩠨𨐬𨠬𨐪𨠪𨰯𜑥𞐫𨰪𜠬𩀯𜠩𞡸𛡦𪑬𫁒𩑣𭀨𨐬𨠬𜰬𜰩𯐻𩡯𬠨𪐽𝀹𞐹𞱩𛐭𞰩𩠨𞐶𜀬𝐴𜀬𬐬𜠵𜀩𛁱𚰽𛠰𜀴`.replace(/uD./g,'')))

Jun 15 2019 12:46 PM UTC

}// 117/140

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Chaotic movement spirograph fractal #fractal #spirograph #chaos

u/magna

Awesome!
u/joeytwiddle

Pretty cool. Has an alien #organic feel to it.

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𞱦𫱲𚁩🐱𜐰𞱩𛐭𞱸𛡲𩑳𭁯𬡥𚁸𛡦𪑬𫁔𩑸𭀨𘡒𩑦𫁥𨱴𘠬𪐿𞐫𪐪𤰨𪐯𜰫𭀪𞐩𛰲𞠹𛀵𝀰𚱩𚠲𚠵𚐩𚑸𛡳𨑶𩐨𮀮𩡯𫡴🐢𝀱𩑭𙰢𚐬𮀮𨡥𩱩𫡐𨑴𪀨𚐬𮀮𬡥𨱴𚀰𛁩𚠵𚰵𝀰𛀲𩐳𛀵𚐬𮀮𬱴𬡯𪱥𤱴𮑬𩐽𘠣𜀰𡠢𛁸𛡳𭁲𫱫𩐨𚐬𪐦𙡸𛡣𫁩𬀨𚐻`.replace(/u../g,'')))

Jun 13 2019 6:59 AM UTC

}// 140/140

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Reflect

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simonmkwii

remix of d/13488 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=640,i);z=--i**.3;x.fillStyle=R(0,500/--z))x.setTransform(s=20/z,0,0,s,0,0),x.fillText(';',i%z*99,t++%z*60)

Jun 9 2019 6:59 AM UTC

}// 127/140

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;

u/katkip

um ok
u/lionleaf

#matrix :) Nice one
u/Xen

oooo

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pavel

function u(t) {

for(i=c.width|=0;r=S(k=--i>>6)**2;x[i%64?'fillRect':'clearRect'](7-k/4,0,r,r))x.setTransform(99,0,0,42,960,32*k+(i%64*r||3)),x.rotate(3*t+k)

Jun 7 2019 6:27 AM UTC

}// 140/140

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#box #tornado #d3

u/aleamb

amazing!
u/donbright

how the....
u/KilledByAPixel

❒
u/vain

hard to believe... top!

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KilledByAPixel

remix of d/14461 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𜀻𪐼𜑥𜰻𮀮𩡩𫁬𚁰👮𩑷𘁐𨑴𪀲𡀨𚐬𬀮𨑲𨰨𪐥𜐲𜀫𞐪𤰨𭀫𪐩𛁱𚠴𚱩𚠷𝰥𝐹𛁩𚰫🱱𛰲𞠲𩐳𛀰𛀷𚐩𛁸𛡧𫁯𨡡𫁃𫱭𬁯𬱩𭁥𣱰𩑲𨑴𪑯𫠽𙱳𨱲𩑥𫠧𚑱🐨𚀱𚱓𚁩𚐩𚠳𩐷𛑴𚠨𪐥𞐫𞐩𛰴𚐥𜐹𛁩🱸𛡦𪑬𫁓𭁹𫁥👒𚀲𝐵𛁱𚠵𛁱𚐺𨰮𭱩𩁴𪀽𜐲𜀻`.replace(/u../g,'')))

Jun 6 2019 3:10 PM UTC

}// 140/140

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Playing With #Fire

u/metamero

arc fire >> rect fire
u/KilledByAPixel

The additive blending helps.

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𞱸𛡦𪑬𫁒𩑣𭀨𜀬𥰽𜑥𜰬𭰽𜱥𜰬𭰩𞱦𫱲𚁩🐹𞐻𪐭𛐻𮀮𩡩𫁬𚁰👮𩑷𘁐𨑴𪀲𡀨𦠽𦐼𜀿𬠫𦐺𬠩𛁰𛡥𫁬𪑰𬱥𚀨𪐪𞐹𚱴𚠨𝐹𞐫𤰨𪐪𪐩𚠪𜠪𥰩𚐥𭰭𬠬𥰭𦐭𬠬𜠪𬠭𦠬𦠬𜀬𜀬𝰩𚐩𬠽𪐬𪀽𚀲𚱩𚡷𙐹𚐪𞐹𛁙👨𚠨𤰨𥰪𭀯𪀫𪐩𚠪𜠩𚠪𛠵𛑲𛰳`.replace(/u../g,'')))

Jun 4 2019 6:13 AM UTC

}// 140/140

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Bouncing Balls

u/SMON

They deform when bouncing! ❤️
u/katkip

Realistic
u/katkip

#bouncy #physics
u/KilledByAPixel

#bounce

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pavel

remix of d/14376 by u/pavel

function u(t) {

eval(unescape(escape`瑼簨瀽焽刽㌵〬堽夽爽猽㔩㭐㵰ⵘ㭑㵱ⵙ㭐⩐⭑⩑㸱攵☦⡕㵐⼱㔬嘽儯ㄵ⤻砮慲挨瀫㵲⨽瀾㵒♰㰱㔷ぼ簭ㄬ焫㵳⨽焾㵒♱㰷㌰籼ⴱⱒⰰⱣ⹷楤瑨簽〩㭸⹡牣⡘⬽唬夫㴫⭖ⰳ㔬〬㜩㭸⹦楬池敶敮潤摠`.replace(/u(..)/g,"$1%")))

Jun 2 2019 7:17 AM UTC

}// 134/140

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#physics #bounce #compressed

u/pavel

172 t||(p=q=R=350,X=Y=r=s=5);P=p-X;Q=q-Y;P*P+Q*Q>1e5&&(U=P/15,V=Q/15);x.arc(p+=r*=p>=R&p<1570||-1,q+=s*=q>=R&q<730||-1,R,0,c.width|=0);x.arc(X+=U,Y+=++V,35,0,7);x.fill`evenodd`
u/DataMeta

Would be very cool to see the ball decoupled from the container's reference frame. Could it fit within a compressed dweet?
u/pavel

it is decoupled
u/DataMeta

Somehow missed that. Awesome.

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pavel

remix of d/10076 by u/yonatan

function u(t) {

t?X*X+Y*Y>2.4e5&&(v=C(t*t)/42-.07,U=v*X,V=v*Y):U=V=Y=X=3
X+=U;Y+=++V
x.arc(w=960,h=540,h,0,c.width|=0);x.arc(w+X,h+Y,40,0,7)
x.fill`evenodd`

Jun 2 2019 12:27 AM UTC

}// 140/140

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#physics #bounce

u/pavel

The velocity of the bounce changes on every hit, otherwise the ball would settle on a simple pattern

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pavel

remix of d/14305 by u/robbyg

function u(t) {

r=(t&&2+r)**.5;throw p=t?2*p/r:2

May 31 2019 3:19 AM UTC

}// 32/140

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Calculating #pi based on Viète's formula

u/pavel

Converges pretty quickly

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