Top dweets by u/tomxor

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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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𚁁👂🐸𛁕👖🐰𚐻𪐭𛐻𪰽𥀦𤠼𝐿𛠲𝐭𤠯𜠰𞠰𛁕𛐽𪰪𨐬𥠭👫𚡢𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𝐩𛁔👓𚁘𛰶𚐫𠰨𦐯𝠩𚱙𛰶🠸𛁒👍𨑴𪀮𪁹𬁯𭀨𨐽𦀭𠐬𨠽𦐭𠠩𞱁𚰽𥐬𠠫👖𛁁𚰽𭰬𠐥👷𛁖𚰽𛠱𜠵`.replace(/u../g,'')))

Jul 28 2021 12:08 AM UTC

}// 134/140

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Impossible Marble #Physics

u/tomxor

Inspired by d/23398. Uses raster/2d-voxel based intersection
u/Xen

love it!
u/magna

HOW?!
u/katkip

how
u/tomxor

It's particle physics, but the collisions are with implicit volumes. So rather than checking against a specific object, each pixel is intersected with the circle, if the pixel is filled and intersects, then it contributes velocity to the particle along the collision normal (the vector between the pixel and the point), the deeper the intersection based on the radius the greater the contribution... this is not correct at all and creates lots of phantom momentum, but is very simple and shares the code with drawining the screen.

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tomxor

remix of d/19748 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𭑛𪑝👴🱰🁷🱲𙐨𛠶𚱓𚁴𚠸𚱙𛰸𧡘𛰴𚐯𞐩𚠨𬀫𭑛𪐭𭱝𚱵𦱩𛑷𚰱𧐩𙡷𛐱𞡰𞠨寿𛐱𝀦𜐶𚐼🁲𚠮𝠩𬀽𭑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👒𚁰🁷𙠦𬀪𞀬𬀼𭰦𙡰𚠲𚐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙🐶𞀭𪐯𭰬𜐬𬀪𚠮𝀯𞀭𜐩𛁲👩𚡴𧡩𙡙`.replace(/u../g,'')))

Aug 20 2020 2:25 AM UTC

}// 139/140

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#castle #fire colour version

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u/jellyedwards

Amazing!
u/magna

DUDE!
u/DataMeta

this is c r a z y
u/sigveseb

One of the best dweets ever
u/KilledByAPixel

Epic dweet!
u/rep_movsd

How does this even work :O

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tomxor

remix of d/15355 by u/tomxor

function u(t) {

eval(unescape(escape`挮獴祬攽❦楬瑥爺楮癥牴⠱✻景爨愽戽瀽㌮ㄴⱩ㴲攴㭩ⴭ㭡⬽⡲ⵡ⭢⩓⡡⩰⤩⼴Ɫ⬽⠰ⵡ⩢⭃⡡⩰⤩⼴⥩☱☦砮晩汬剥捴⠹㘰⬶㐰⩓⡙㵢⬲⤪䌨堽愯⸳⤬㠰〫㘴〪䌨天Ⱞㄬ䌨堫⸵⤪⨮㤫⸱籼⸱Ⱳ㴨楞愪椯琩┲⤻`.replace(/u(..)/g,"$1%")))

Aug 10 2019 11:46 PM UTC

}// 140/140

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M Class ? #planet #space

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u/tomxor

#waitforit
u/aleamb

nice!
u/13thptr

amazing! #d3 #shading
u/tomxor

Thanks :)
u/magna

O M F G
u/moto

great
u/katkip

looks good

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tomxor

remix of d/20405 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐻𠰽𠰭𝠴𚱓𯀰𚐨𤰯𝠴𚡒𛑒𚱃𛰳𩐶𧡒𚰳𚡴𚐥𝰿𤠪🐱𛠰𜠺𮀮𩡩𫁬𤡥𨱴𚁓👩🠾𝠬𦐽𪐦𝠳𛁱🐰𯀨𬀽𚁸𦰭𛑩𧐫🐷𚡔𚐫𚁙𛰳𜠪𤠭𤡼𜀿𦐯𜐲𞀺𜐭𜐯𤠩𚐬𦐿𜐺𤠽𜐬𥀽𚁰𛑱𯁼𜀩𛰱𝠬𮁛𭑝𚰽𜰪𥀬𮁛𭐽𪐭𝠴𧐫🐵𚡔𛁸𦱵𛐱𧐽𥀩`.replace(/u../g,'')))

Jun 11 2023 2:56 AM UTC

}// 140/140

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Return to Castle Floyd Wolfensteinberg

u/tomxor

Also used d/24142 #wolfenstein #dithering
u/magna

LOL
u/KilledByAPixel

haha, nice!
u/donbright

#3d
u/donbright

holy smokes

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tomxor

remix of d/21705 by u/tomxor

function u(t) {

b='渀渀漀漀澀柀柠揸懿惿怿怏'
eval(unescape(escape`𩡯𬠨𪐽𜀻𪐼𜡥𜰻𤠫👔𚁙𛰹𚱴𚠳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𚠱𜠰𯐠𞐹𙐤𮱢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐯𞐰𚐾🠨𤠼𜐵🱒𞠭𝀭𤠩𙠱🰴𝀺𞁽𙑠𛁒👩𙐹𜀯𜰬𮀮𩡩𫁬𤡥𨱴𚁒𚠶𛁙𚠶𛁩🰱𛠵𞡣𛡷𪑤𭁨🐱𞀰𛁩𚰫🰵𞠹𞐩`.replace(/u../g,'')))

May 14 2021 6:27 PM UTC

}// 140/140

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Broken Video Game #retro #crt #atari

u/Xen

nicely done!
u/magna

YES!
u/DataMeta

wowie
u/aleamb

great!

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tomxor

remix of d/18484 by u/jylikangas

function u(t) {

for(w=i=c.width=256;--i;x.fillRect(...(i&1?[6+X,6+Y,48,36]:[(t+++S(t))*20.372%w+i%9,1+X%w,4,2,x.transform(0,1,-1,0,w,0)])))X=i%9<<6,Y=i%5<<6

Apr 25 2020 11:25 PM UTC

}// 140/140

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#City #Traffic #Simulator v2

u/tomxor

They are mostly behaved at the junctions, few maniacs' here and there...
u/KilledByAPixel

👍
u/jylikangas

Very clever to use transform here! Thanks for improving this.
u/tomxor

Thanks for starting the idea, was really fun making this one.

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tomxor

function u(t) {

t>1&&eval('U='+parent[c.style=9*u.r|reset()].u);U(t);if(t%1>.8)for(c.width=128,i=1e4;i--;)x.fillRect(i&127,0|i/120-t*4,1,u.r=Math.random())

Mar 13 2020 1:15 AM UTC

}// 139/140

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Dwitter Vision

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u/Xen

love the idea
u/DaSpider

ReferenceError: U is not defined
u/KilledByAPixel

how is this possible?
u/tomxor

All loaded iframes are enumerated on the window object (for any webpage), the value is the window object of the corresponding frame... and from inside a dweet this can be accessed (with restrictions) by going to the parent frame, then you have access to any globals in that other frame. While you can't call a function since it's in a different JS context, you can read it's source and re-evaluate it.
u/tomxor

essentually window.parent[n].u is the function created by dwitter for dweet n on the page, if you add it to a string it calls toString which returns the source, you can eval this and assign it to something to run in this context.
u/tomxor

I think I am the most verbose person here sorry :/
u/jellyedwards

Wow that's amazing!
u/jellyedwards

Very nice presentation of that little trick
u/katkip

nice trickery. #exploit #trick #hack
u/sigveseb

Woah

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tomxor

remix of d/17223 by u/tomxor

function u(t) {

c.style='filter:invert(1';for(a=b=0,i=1e4;i--;a+=.3*(r-a+b*S(a*3.1)),b+=.3*(-a*b+C(a*3.1)))i&8&&(r=i*t/b&3,x.fillRect(a*960,b*480+480,.2,1))

Jan 15 2020 12:40 AM UTC

}// 140/140

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u/katkip

Amazing!!!
u/DataMeta

WOW!
u/magna

wowza
u/aleamb

yeah!
u/ivylab

Looks like a giant godlike creature, head and eyes on the left. No idea how you created this awesomeness
u/tomxor

hah, yeah i didn't see that before, like some sort of weird ornate crustacean.

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tomxor

remix of d/18413 by u/pavel

function u(t) {

for(w=c.width=120,i=9e3;i--;x.fillRect(i%w,i/w,1+S(9*X/d)**5*S(9*Y/d)**5,d/2+Y/4))X=i%w/30-2,Y=i/w/30,r=X*X+(S(Y-8)-t%4+2)**2,d=r>.2||C(r*5)

Apr 24 2020 12:16 AM UTC

}// 140/140

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#rain drop on a #window

u/Whimpers

That’s insane! Nice job 👍
u/magna

Wow!
u/sigveseb

Niiiiice!

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tomxor

remix of d/17761 by u/ElisionFR

function u(t) {

c.width=innerWidth
n=t?n.map(([A,B,X,Y])=>[A,B+.6,X+A/4,Y+B/4,x.fillRect(X,Y,3,3)]):[]
onmousemove=({x,y})=>n[t*60&255]=[x-C,y-S,C=x,S=y]

Feb 27 2020 12:12 AM UTC

}// 137/140

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#interactive #particles #physics

u/tomxor

lol nmap
u/katkip

Awesome!
u/aleamb

amazing!
u/DataMeta

haha dude niice

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