Dweets awesomed by u/ersagun

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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pavel

remix of d/18153 by u/Kirjava

function u(t) {

with(x)for(beginPath([X,Y=X,r=200,a=2]=u[T=-~T]||[999]),fillStyle=R(i=4,3e3/r);i--;fill())lineTo(...u[2*T+i]=[X-C(--a)*r,Y+S(a)*r,r*.8,a-9])

Apr 7 2020 3:38 AM UTC

}// 140/140

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#tree #waitforit #uncompressed

u/pavel

This is a breadth-first traversal of a binary tree, one frame at a time. The tree is maintained in a 1D array (2n+i notation) that I simply iterate left-to-right. The loop does double-duty for drawing the current node and inserting the children. The shape has four corners so the loop runs four times and inserts four children: 2n+0, 2n+1, 2n+2, 2n+3. My mind was blown when I realized no extra code was needed to prevent the adding of the extra children because the first two children of the next iteration will overwrite them!
u/joeytwiddle

#broccoli
u/katkip

interesting
u/pavel

https://i.imgur.com/FZ9Whj4.png

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👪🐳𞀻𪠭🐲𞰩𩡯𬠨𭰽𪐽𜐱𞀻𪐭🐲𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𚑛𩀽𚁶👩𙐴𚐿𪠺𪐬𩀫𜡝𛡭𨑰𚁫🐾𮀮𫁩𫡥𥁯𚀹𝠰𚱓𚁰🐨𭠿𪐺𪰩𛰹𛠲𜰫𭀩𚠨𩠽𭠿𪰺𪠫𭀪𞐥𜠩𛰨𦠽𭰫𠰨𬀩𚡦𚠳𚐪𜡥𜰬𚀵𞀭𩠩𚠪𜰯𦠭𭰬𮀮𫁩𫡥𥱩𩁴𪀽𝐱𜠯𦠩𚐻`.replace(/u../g,'')))

Apr 4 2020 10:31 AM UTC

}// 140/140

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#vortex #d3

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ersagun

remix of d/18086 by u/pavel

function u(t) {

with(x)fillStyle='#FFF',fillRect(0,0,2,1e3),fillStyle=R(),fillRect(0,540,2,10),drawImage(c,2,Math.random()*10-5)

Apr 2 2020 9:28 PM UTC

}// 112/140

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brown noise

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Kirjava

function u(t) {

eval(unescape(escape`𭁼𯀨𬰽𦰮𛠮𘠠𜐳𡁜𫡆𞀲𠱜𫡅𠐵𝁜𫠶𞑂𝰢𧐬𥀽𜀩𛁯𫡫𩑹𭑰👮🐾𚁑👳𦱶👔𚱛𛐱𛀵𛀱𛀭𝑝𦰳𙡮𛡷𪁩𨱨𧑝𚐾𘠰𘠿𬱛𬱛𥁝👑𛁔👶𧐽𘠠𘠺𜀬𩀽𩁯𨱵𫑥𫡴𛡢𫱤𮐬𩀮𪑮𫡥𬡈𥁍𣀽𘠼𬁲𩐾𘠫𬰮𪡯𪑮𨁠𛁤𛡳𭁹𫁥𛡦𫱮𭁓𪑺𩐽𙰵𩑭𙰻`.replace(/u../g,'')))

Apr 2 2020 9:23 AM UTC

}// 132/140

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15 puzzle #game #interactive

u/Kirjava

control with IJKL
u/katkip

Works on light theme

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pavel

function u(t) {

for(i=1920;i--;x.fillRect(i&-T,i%T*T,T=32,T))x.fillStyle=`hsl(${T*t},99%,${u[i]=u[i]*.94+T/Math.hypot(i/T-T-C(3*t)*20,i%T-16-S(4*t)*9)||0}%`

Apr 2 2020 4:46 AM UTC

}// 140/140

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Flare

Show more comments…
u/pavel

Inspired by https://twitter.com/ntsutae/status/124366720…
u/jylikangas

Lovely use of an array for the trail effect!
u/BriSeven

hypot?! WHAAAT how long has THAT been there?
u/katkip

this is actually easier than it looks
u/sigveseb

Looks very pretty :)
u/aleamb

amazing!
u/rodrigo.siqueira

It reminds me the light and movement of this Fluid Simulation https://paveldogreat.github.io/WebGL-Fluid-S…
u/Scaledish

hell, it looks better than the fluid simulation
u/joeytwiddle

#glow #worm

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ersagun

function u(t) {

if(!t)X=Y=0
for(i=0;i<1e3;i++)X=(X*.8+Y*.3+S(A=(Math.random()*3|0)*2))/1.2,Y=(Y*.8-X*.8+C(A))/1.2,x.fillRect(1e3+Y*200,500+X*200,1,1)

Apr 1 2020 3:42 PM UTC

}// 133/140

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chaos game fractal

u/katkip

awesome!

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pavel

remix of d/18074 by u/pavel

function u(t) {

c.width|=f=(X,Y,d,z=2+X*S(a=Y-4*t))=>d>>8?x.fillRect(960+1e3*X*C(a)/z,540+1e3*Y/z,6,6):[t,t+2,t+4].map(i=>f(X+C(i)/d,Y+S(i)/d,2*d));f(0,0,2)

Mar 28 2020 3:27 AM UTC

}// 140/140

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#sierpinski dance

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u/sigveseb

Very clean!
u/DataMeta

So smooth!
u/aleamb

wow! very smart code!
u/lionleaf

What an amazing dweet. And little did you know I had already planned #dancing as the theme for April. You were ahead of the times :D
u/joeytwiddle

Nice! Here is a dirtier, underrated relative: d/13611
u/Qwitter

looks glossy!
u/vain

Very nice and smooth 3D rotated and transformed sierpinski

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pavel

function u(t) {

for(i=c.width|=0;j=--i>>5;x.fillRect(960*(z+S(j*j)+r*C(i))/z,3e3*(.2+m*(m<0&&-1)**i)/z,s=--m*9/z,s))m=(t+j/7)%2-1,r=m>0&&m/3,z=2+S(j)+r*S(i)

Mar 25 2020 8:28 AM UTC

}// 140/140

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Reflections on #rain

u/katkip

beautiful
u/aleamb

amazing
u/vain

amazing rain drop fx

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁫🐰𞱫🀱𩐳𞱦𪑬𫀨𩑬𫁩𬁳𩐨𪐪𝀫𤰨𭀪𞐫𪐩𚠳𛀨𤰨𪐪𪐩𚡔𚱔𚱴𚠨𪐥𝐫𜠩𚠵𞐩𙐲𩐳𛑪𚠹𛐹𛁷👫𚰫🰹𛑪𚠳𛑓𚁩𚱴𚐪𜰺𥀽𜑥𝐬𭰪𠰨𪐫𭀩𛰲𚱷𛀰𛀰𛀷𚐩𚑩👫🠾𜐬𪠽𪰥𜠬𨡥𩱩𫡐𨑴𪀨𩡩𫁬𤱴𮑬𩐽𤠨𭠽𞐹𚰱𝐵𚡪𚰡𪰪𜠹𛁶𛁶𛀮𜰩𚐻`.replace(/u../g,'')))

Mar 22 2020 7:01 PM UTC

}// 140/140

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Rain on #Glass 🌧

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁷👩👣𛡷𪑤𭁨𯀽𜀬𭰩𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𭰯𜠫𤰨𬀽𚀱𛠲𝐶𝠫𤰨𭀩𛰲𩐳𚐪𪐫𠰨𭀩𚐪𪐯𝀭𚁳👍𨑴𪀮𫑩𫠨𭰯𪐪𜐶𛀱𜠰𚐩𛰲𛀵𝀰𚱃𚁰𚐪𪐯𝀭𬰯𜠬𬰬𬰩𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫁡𚀤𮱩𛰴𛑴𚡷𯐬𞐹𙐬𙁻𝠶𚰨𜐭𪐯𭰩𚠳𜱽𙐬𛠱𨀻`.replace(/u../g,'')))

Mar 19 2020 10:44 PM UTC

}// 140/140

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u/WorldMerge

This is fantastic! How did you compress your js like that?
u/cantelope

there are a few handy compression tools/dweets @ https://dwitter.net/h/compressor . They don't all work, so look for the ones with a lot of Awesomes, like: https://www.dwitter.net/d/11852 . I've been a long fan and user of Dwitter but my main (and perhaps only) complaint is the strict 140 char rule. It has given me equal measures of inspiration and frustration, hence why I created the spin off site, https://codegolf.tk which has 3 categories, 140b, 512b, and 1024b to allow for more sophisticated demos while still giving credit for the 140b achievement. :)
u/DaSpider

The 140 chars would be better if there were more shortcuts like C(), R(), etc. for functions like Math.random, x.fillStyle, etc.
u/13thptr

#starfish #compressed

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