Dweets awesomed by u/sigveseb

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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danny@hille.dk

remix of d/20882 by u/pavel

function u(t) {

with(x)for(beginPath(fill()),fillStyle=(T=!T)?'#fff2':R(),i=686;a=i--/99;arc(960,540,399+99*f(t|0),a,a))f=n=>T?n:n&&S(n&n*t)*S(a*n)/n+f(n-1)

Dec 4 2020 2:15 PM UTC

}// 140/140

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quick play

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katkip

function u(t) {

Z="ahiabgcb"
x.beginPath(x.lineWidth=8
);for(i of Z){
s=((i.charCodeAt(0)-97)%9)+1
x.lineTo(400+(s%3)*300,300+((s-.1)/3|0)*300)
}x.stroke()

Dec 4 2020 9:47 AM UTC

}// 139/140

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Magical sigil generator. Replace Z with any word (lowercase only). It's a small remake of: https://sigilscribe.me/

u/katkip

Z="ecgkoe" is also nice
u/danny@hille.dk

and Z="sexysin" also looks nice... and Sin() is sexy
u/danny@hille.dk

Borg cube Z="weareborgyouwillbeassimilatedtothecubewithyou"
u/DataMeta

fun little #generator

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rodrigo.siqueira

remix of d/20902 by u/taupelink

function u(t) {

for(i=996;i--;x.fillRect(250*X,250*Y,2e3,1))X=t/2,Y=i/230,h=300*S(Y%S(m=X/2%S(p=C(q=Y*S(X/3))*2)*2+T(i*i**t)/6)),x.fillStyle=R(h*p,h*m,h*q)

Dec 4 2020 5:29 AM UTC

}// 139/140

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Noisy signal

u/taupelink

whoa
u/magna

WOWZA!
u/SMON

haha...not sure why - I guess aliasing - but it sparkles when I scroll :D

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pavel

remix of d/20898 by u/cantelope

function u(t) {

for(c.width=i=640;i--;T=!T&&!x.beginPath(x.stroke()))j=i/16-T*i&30,r=(j+4)/12<<6,x.arc(320+r*C(a=j/1.91+t),180+r*S(a),i&30?0:32,0,7)

Dec 4 2020 3:01 AM UTC

}// 132/140

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Metatron's Cube

Show more comments…
u/pavel

Golfed this one a little bit :) #symmetry
u/pavel

i=[4 bits for start circle index][4 bits for end circle index offset from start circle][1 bit to decide start vs end]
u/pavel

That's 2**9=512 which is too small for power-of-two circle sizes but start clicle index wraps around so larger i is only redundant.
u/pavel

end-circle-offset == 0 is easy to check and means start and end are same circle, so draw that circle.
u/pavel

Otherwise draw the current circle with radius 0 which is same as lineTo.
u/pavel

T=!T&&!x.beginPath(x.stroke()) starts/strokes the path every two circles.
u/pavel

Here is a version before all the bit hacking for(c.width=640,i=16;i--;)for(j=16;j--;x.beginPath(x.stroke()))for(k=2;k--;)q=(i+j*k)%16,r=((q+2)/6|0)*64,x.arc(320+r*C(a=Math.PI/3*q+t),180+r*S(a),!j*32,0,7)

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MrHaila

remix of d/20909 by u/MrHaila

function u(t) {

c.width^=0
for(i=0;i<20;i++){
o=S(S(t*(i+1))*(S(t)-0.5))*440
q=i*98
e=i*2.5
x.fillRect(q,400,50,200+o+e)
x.fillRect(q,700+o-e,50,200-o+e)
}

Dec 3 2020 10:16 PM UTC

}// 139/140

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u/magna

Fun!
u/Odog8

#default

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MrHaila

function u(t) {

c.width^=0
for(i=0;i<20;i++){
o=S(S(t*(i+1))*(S(t)-0.5))*800
q=i*98
e=i*2.5
x.fillRect(q,400,50,200+o+e)
x.fillRect(q,700+o-e,50,200-o+e)
}

Dec 3 2020 10:13 PM UTC

}// 139/140

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Hello world!

u/Xen

welcome to the dwitter family!

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Xen

remix of d/20905 by u/solendil

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐶𞐬𮀮𩱬𫱢𨑬𠱯𫑰𫱳𪑴𩑏𬁥𬡡𭁩𫱮🐧𮁯𬠧𞱩𛐭𞱸𛡦𪑬𫀨𬀽𫡥𭰠𤁡𭁨𜡄𛁰𛡡𬡣𚁓𚁷🐨𭀪𪐯𞐹𛑴𚠳𞐩𛰹𚐪𝠶𜀫𞐶𜀬𠰨𭰯𜰩𚠲𝐵𚰵𝀰𛁓𚀭𭰪𜠩𚠳𞐫𜐹𞐭𪐯𜠬𜀬𝰩𚐩𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𚱩𯐬𞐰𙐬𝐰𙐩𨀻`.replace(/u../g,'')))

Dec 3 2020 6:14 PM UTC

}// 135/140

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#waitforit

u/danny@hille.dk

Love it!

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katkip

function u(t) {

t||(x.translate(960,540))
x.fillStyle=`#55f2`
if(t<4)for(i=29;i--;)x.fillRect(t*88%200,t*59+(t*88/2)*S(t-i),29,29)
x.rotate(Math.PI/3)

Dec 3 2020 6:45 AM UTC

}// 134/140

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#snowflake

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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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taupelink

remix of d/20654 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(Y%S(m=X/6%S(p=C(q=Y*S(X/3))*2)*2)),x.fillStyle=R(h*p,h*m,h*q)

Dec 2 2020 4:43 AM UTC

}// 140/140

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d/20902

u/pavel

You can save 7 chars by doing f=i*t,X=f*f%9,Y=X*f%5 in these instead of Math.random. It seems random enough.
u/taupelink

Oh cool, thank you!! I like the way it changes the animation at the beginning too.

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