Dweets awesomed by u/stefano

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: #Food

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𮠽𞐹𒡴🱃🱔𚰽𛠰𜰺𜀺𥠽𦐽𥀽𜐊𩡯𬠨𪐽𝐻𪐭𛐻𪑼𯁔𙐱🀮𝠿𢀽𪀺𜀩𪠽𪐫𥁼𜀬𮀮𩡩𫁬𤡥𨱴𚀨𪠭𥀩𚠲𞐬𪀽𝀰𛐹𚡓𚁪𚡪𚐬𜠷𛁺𚐊𮀮𩡩𫁬𤡥𨱴𚀹𛁙𚰽𥠫🐮𜀷𛀴𛀭𝰩𒡯𫡭𫱵𬱥𩁯𭱮👙🡈🱙𚰨𥠽𜀩🡈𚰳🱃🐰𞠨𦐽𢀬𩐽🡖🐭𜠩𞠰𒡴𪁲𫱷𘁪`.replace(/u../g,'')))

Dec 2 2020 5:45 AM UTC

}// 140/140

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Platform Runner Game - Click to Jump!

u/katkip

awesome!! #interactive #game
u/jellyedwards

very good, nice little death sequence too!
u/aleamb

amazing!
u/tomxor

Dude!!!!!
u/rodrigo.siqueira

So far, my favorite dwitter game!!

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=Math.PI/4+(p+p/4&1||-1)*(369/13*d+3*t)),240+p%4*200+130*S(a),d,d))d=i%120/9,p=i/120|0

Dec 1 2020 8:51 PM UTC

}// 140/140

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#beesandbombs demake https://twitter.com/beesandbombs/status/1327…

u/rep_movsd

If you stare a bit, you see white lines completing the circles - an optical illusion
u/danny@hille.dk

save 9 bytes for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+130*S(a),d,d))p=i/120|0,d=i%120/9
u/danny@hille.dk

120/9 = 40/3
u/danny@hille.dk

129 bytes -> for(m=120,i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+m*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+m*S(a),d,d))d=i%m/9,p=i/m|0

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𝠰𜀬𠠽𦱝𛁩🐱𞀻𪐭𛐻𮀮𨡥𩱩𫡐𨑴𪀨𮀮𬱴𬡯𪱥𚀩𚐩𮀮𨑲𨰨𦀽𜰰𜀫𤰨𬀽𜐮𜀴𝰪𪐭𭀩𚠨𩀽𝠴𚠨𪐯𝡼𜀩𚐬𦐽𜐶𞐫𠰨𬀩𚡤𛀳𜠬𜀬𝰩𛁂𛡰𭑳𪀨𦱘𛁙𧐩𒡂𛡭𨑰𚁶🐾𠠮𫑡𬀨𬐽🡻𮀮𫁩𫡥𥁯𚀮𛠮𭠩𛁸𛡬𪑮𩑔𫰨𛠮𛡱𚑽𚐩𛁸𛡳𭁲𫱫𩐨𚐻`.replace(/u../g,'')))

Dec 1 2020 5:48 PM UTC

}// 140/140

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u/rodrigo.siqueira

METATRON'S CUBE, an example of sacred geometry. It's used as a mystical object that spins the energy of our thoughts and provides a visual focal point for meditation.
u/cantelope

relevant: https://code.whitehotrobot.com/d/2w6u
u/pavel

-15 chars for(c.width=600,B=[i=18];i--;x.beginPath(x.stroke()))d=i/6<<6,x.arc(...B[i]=[300+S(p=1.047*i-t)*d,169+C(p)*d,32,0,7]);B.map(v=>B.map(q=>x.lineTo(...v)+x.lineTo(...q)));x.stroke()
u/cantelope

nice
u/cantelope

also, https://codegolf.dweet.net/a/491
u/katkip

amazingg

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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femto113

function u(t) {

c.width=1920
X=960,Y=540,P=Math.PI,N=t/P%32,p=P/N
for(i=0;i<P;i+=p)x.fillRect(X+Y*(S(i+P)-S(i))/2*S(t+i),Y+Y*(C(i+P)-C(i))/2*S(t+i),19,19)

Nov 14 2020 8:31 AM UTC

}// 138/140

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linear motion rolling circle illusion

u/katkip

#illusion
u/DataMeta

nicely done
u/pavel

If you delete c.width=1920 you can see only the first dot move linearly
u/femto113

curves are a side effect of changing N with t, if you use a fixed value like N=16 you get straight lines

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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𜐹𜠬𤠽𝀸𛁩🐸𜀶𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁓𚰹𝠬𥀫𝐴𛁃𚁍𨑴𪀮𨑴𨑮𜠨𤰽𪐥𞐷𛑒𛁔👩𛰹𝰭𤠬𬠽𚁓𚡓𚱔𚡔𚐪𚠮𝐩𚠹𚐪𜠰𛑲𙠴𝀦𙡲🠳𝠿𬠼𝀲🱔𛱒𞡓𛱒𞠱𛁲🠳𝠿𬠼𤠺𮠨𜰩𛰵𚐩𮠽𫠽🡮𛐭𙠦𠰨𥀯𜠫𤰪𥀯𤠫𭀪𞐩𚡃𚁔𛰴𛑺𚁮𚐪𜠩𛑲𛰶`.replace(/u../g,'')))

Nov 13 2020 1:17 AM UTC

}// 140/140

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#stargate

Show more comments…
u/DataMeta

wow WHAT
u/DataMeta

super rad combo of that fluid/smoke technique from a while back and the recent 2.5D Doom texture tricks!
u/chris@grimtech.net

Is this an incoming or outgoing wormhole? thanks
u/magna

WHAT.
u/sigveseb

Holy smokes!
u/tomxor

https://news.ycombinator.com/item?id=25088683
u/aleamb

brutal! amazing!!!
u/rep_movsd

This is one of the all time greats
u/Xen

Yess!
u/UEZ

Awesome. One rookie question: where are the color values saved?
u/red-lady

Stargate!!
u/tomxor

@UEZ the width and height of fillRect are used, when less than one pixel it will interpolate the alpha channel in proportion to the area. The same happens when an edge lies between two pixels (anti-aliasing).
u/UEZ

@tomxor: thanks for your fast reply. :-) That's what I thought but when will width used, when height? I'm trying to under JS by converting it to FB.
u/UEZ

*understand
u/tomxor

The following are equivalent when the values of w and h are between 0 and 1: fillRect(0,0,w,h) == fillRect(0,0,w*h,1). This is because the alpha channel of this pixel value is roughly proportional to the subpixel area (w*h). In terms of the patern we are trying to create, multiplication it's like the continuous version of AND, i.e the binary version is 1 IF w AND h. Additionally a lot of characters are saved when separating into w and h because we dont need to wrap the actual subexpression used to create w and h in parens and multiply them i.e fillRect(0,0,(.1+.2)*(.3+.4),1) becomes fillRect(0,0,.1+.2,.3+.4), that's -5 chars!
u/UEZ

@tomxor: thx.
u/nystrand

epic!
u/jelmo

Nice
u/vain

Wow! This seems to be your stargate... Seems you are not from this world! Incredible!!!

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pavel

function u(t) {

for(c.width|=i=266;i--;x.beginPath(x.fill()))for(r=74-T(S(i*i+t/4)*.6+t/2)**8,j=6;j--;)x.arc((i>>4)*2-i%2<<6,i%16*111,r>0&&r,a=j*1.047+11,a)

Nov 3 2020 8:04 PM UTC

}// 140/140

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Hexagons are the Bestagons

Show more comments…
u/pavel

Inspired by https://www.youtube.com/watch?v=thOifuHs6eY and https://twitter.com/Hau_kun/status/124501623…
u/danny@hille.dk

Amazing
u/pavel

This would look better with the colors inverted but I couldn't fit it.
u/tomxor

Neat!
u/joeytwiddle

Hexcellent
u/anotherkitten

so crisppp
u/Xen

so clean
u/DataMeta

hextra smooth
u/katkip

hexy
u/RamiSlicer

HEXAGONS ARE THE BESTAGONS!!!!!
u/erin

they are

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tomxor

remix of d/20405 by u/tomxor

function u(t) {

A=S(t);B=C(t);for(c.width=X=128;X--;x.fillRect(X,36-1e3/Z,Z**.5/16,2e3/Z))for(Z=1,R=T(X/81-.8);(A*t+24+(R*B-A)*Z/8^64+(R*A+B)*Z/8)%15>1;)Z++

Oct 28 2020 6:12 PM UTC

}// 140/140

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Wolfendweet 3D #raycasting sans-bot no-clip

Show more comments…
u/pavel

The lack of x.fillStyle is amazing.
u/pavel

Save 3 chars by incrementing Z by .1 instead of doing the math every time: A=S(t);B=C(t);for(c.width=X=128;X--;x.fillRect(X,36-125/Z,Z**.5/7,250/Z))for(Z=0,R=T(X/81-.8);(A*t+24+(R*B-A)*Z^64+(R*A+B)*Z)%15>1;)Z+=.1
u/tomxor

Ah yes! thanks pavel :) I did try to get rid of Z/8 once but didn't go far enough with the constants as you did.
u/tomxor

Can also now play with the marching granularity more easily to get smoother results... although it's very slow without an SDF for the fractal for larger initial steps.
u/Xen

love it!
u/tomxor

#raymarching
u/13thptr

Nice dweet. Related: d/2961 d/7076
u/13thptr

#wolfenstein

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tomxor

function u(t) {

eval(unescape(escape`𭁼𯀨𬠽𨐽𨠽𝠴𚐻𠐽𤰨𬠩𞱂👃𚁲𚐻𩡯𬠨𨰮𭱩𩁴𪀽𦀽𜐲𞀻𦀭𛐻𨐭👫𚡁𛁢𚰽𪰪𠠬𬠭👃𚁘𛰴𜀫𤰨𭁞𦠩𚐯𦠯𦠬𮀮𩡩𫁬𤡥𨱴𚁘𛀳𝠭𜑥𜰯𦠬𪰪𬠬𜡥𜰯𦠩𚑦𫱲𚁚🐱𛁒👔𚁘𛰸𜐭𛠸𚐻𚁡𚰨𤠪𠠭𠐩𚡚𛰸𧡢𚰨𤠪𠐫𠠩𚡚𛰸𚐥𜐵🠱𞰩𪰽𚁚𚰫𚠪𛠵𛐳𚐯𝁥𜰻`.replace(/u../g,'')))

Oct 26 2020 9:45 PM UTC

}// 140/140

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Wolfendweet 3D #raycasting

Show more comments…
u/KilledByAPixel

🤯
u/DataMeta

🤩 #d3
u/magna

Wowstein!
u/neimad

You won Dwitter
u/tomxor

#raymarching
u/13thptr

#wolfenstein
u/xyper

this is my favourite dweet

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danny@hille.dk

remix of d/20371 by u/danny@hille.dk

function u(t) {

for(Y=t*60,X=480;X--;x.fillStyle=R(o=333*C(C(S(t+X/33)-t+S(X/(25+T(X/19+Y/19))))),o*.7))x.fillRect(X*4,0,4,4)
x.drawImage(c,0,4)

Oct 24 2020 7:11 PM UTC

}// 128/140

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Follow the yellow brick road v2

u/joeytwiddle

#shiny
u/sigveseb

golden
u/danny@hille.dk

webgl version http://glslsandbox.com/e#69246.0

dwitter.net | stefano (12536)