Dweets awesomed by u/geb

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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ciaccodavide

remix of d/20700 by u/ciaccodavide

function u(t) {

for(c.width|=i=9;i--;)x.moveTo(X=440+i*121,0),x.arc(X+((P=C(t*4)*99)<0?!i?P:0:i==8?P:0),540,60,4.7,11)
x.stroke()

Nov 19 2020 8:50 AM UTC

}// 113/140

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Newton's cradle #golfed

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pavel

remix of d/20689 by u/yonatan

function u(t) {

for(c.width=w=128,i=2e3;z=--i>>7;x.fillRect(i%w,(4+S(a=i/6+7*t/z)+S(3*a^z)/3+S(9*a)/9)*(14-z),1,w))x.fillStyle=`hsl(200,${z*9}%,${i/7-z*z}%`

Nov 19 2020 2:45 AM UTC

}// 140/140

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Show more comments…
u/joeytwiddle

Excellent collaboration, you monsters!
u/danny@hille.dk

You got some serious golf-fu skills 👍
u/danny@hille.dk

+S(9*a)/9 can be approximated by constant .1 to shave off additional 6 bytes
u/yonatan

this is great!
u/DataMeta

impressive
u/joeytwiddle

I tried to reproduce in tixy.land but overflowed a bit https://twitter.com/joeytwiddle/status/13294…
u/Qwitter

nes vibes

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VictorF

function u(t) {

c.width=1920
for(i=0;i<9;i++){
x.fillRect(500+i * 100+S(t*1.5)*300,0,50,1100)
x.fillRect(500+i * 100+C(t)*300,500,50,200)
}

Nov 19 2020 1:18 AM UTC

}// 123/140

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u/Xen

welcome to the dwitter family

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yonatan

remix of d/16195 by u/yonatan

function u(t) {

eval(unescape(escape`𬐽𨰮𭱩𩁴𪀽𞐹𞱦𫱲𚁶𨑲𘁭🐳𜀬𨐬𪠬𪰬𪐻𫐭𛐻𚑦𫱲𚁮🐱𛑭𛰳𜀬𪐽𬐻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁩𛁡𚠨𜠹𛑭𚐯𜠬𜐬𬐬𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀲𜀰𛀤𮱭𚠳𯐥𛀤𮰵𜀫𤰨𫠪𝀩𚠵𜁽𙐩𨀩𚑦𫱲𚁡🐳𛁪🐱𜠻𪠭𛐻𨐫👓𚀨𚁴𛱭𚡱𚱩𚐫𞐪𤰨𫐪𪰩𚐪𪰯𞐩𛱫𚑫🐲𚠪𪠻`.replace(/u../g,'')))

Nov 18 2020 5:52 PM UTC

}// 140/140

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much faster in firefox

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u/danny@hille.dk

NICE!
u/tomxor

Woah!! The low res makes it feel more real for some reason.
u/DataMeta

AMAZING #landscape
u/ciaccodavide

wow D:
u/rep_movsd

This is amazing
u/Xen

nicely done!

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danny@hille.dk

function u(t) {

for(c.width|=Y=9;--Y>0;)for(m=X=400;X--;)x.fillRect(X*5,C(t+X/130)*S(t*2+X/255)*m+m+Y**2+Y*X/77*S(X/99+t*2)*9+99,2,2)

Nov 18 2020 4:03 PM UTC

}// 117/140

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Just testing some sine wave patterns

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u/danny@hille.dk

Anybody remember the original PS3 dash wave patterns? Any ideas on how to replicate?
u/Xen

possibly bezierCurveTo() with .2 alpha?
u/danny@hille.dk

Definitely some alpha involvement, but i think you need a plane and add some waves to that, and then rotate the plane and add some waves to the planes edge. I tried to replicate in 2d using only sin function, but it lookes like... a bunch of sinus curves :-) http://glslsandbox.com/e#69430.0
u/danny@hille.dk

I found a video of the dash waves... Im not even remotely close :-) https://www.youtube.com/watch?v=UMzKdD_6oUE&…
u/joeytwiddle

My mix: for(c.width|=Y=9;Y>0;Y-=.2)for(m=X=400;X-=2;)x.fillRect(X*5,C(t+X/130)*S(t*2+X/255)*m+m+Y**2+Y*X/77*S(X/99+t*2+C(X/25-Y)/5)*9+99,10,.5)
u/danny@hille.dk

wau u/joeytwiddle that looks amaizing

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ciaccodavide

remix of d/20677 by u/ciaccodavide

function u(t) {

c.width|=1
X=i=>960+C(t*i/20)*39*i
Y=i=>530+S(t*i/20)*(16+S(t)*8)*i
for(i=0;i<39;i++)
x.moveTo(X(i),Y(i)),
x.arc(X(i),Y(i),3*i,0,9)
x.fill()

Nov 18 2020 9:51 AM UTC

}// 140/140

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Tilting Astral Plane

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tomxor

remix of d/20657 by u/dnmc

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X+Y*Y+X*Y)+.5,k)

Nov 18 2020 1:33 AM UTC

}// 79/140

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Nano Snakeskin

u/bandaloo

this is great! i'll definitely be using this substitute for a doubly-nested for loop
u/DataMeta

agreed, cool trick! even more succinct than the nested hack I've been using, and the perf increase from bitwise ops is welcome
u/tomxor

Yes, I've used this so much, I guess it's just more obvious in this one. I've taken technique a step further in d/20707 converting yonatan's 3 loops into one. bitwise can be very powerful to manipulate the variables a loop traverses.

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dnmc

function u(t) {

r=Math.random
j=960+S(t)*400
k=540+C(t)*400
for(i=0;i++<80*t;){
j+=r()*8-4
k+=r()*8-4
x.fillStyle=R(0,(S(t*4)+1)*127)
x.fillRect(j,k,6,6)
}

Nov 17 2020 7:07 AM UTC

}// 139/140

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It's the circle of life...

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taupelink

remix of d/20630 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(S(S(C(p=Y*S(q=X%3*2-2)-2+Y%1.5)))),x.fillStyle=R(h*p,h*q,2*h)

Nov 17 2020 1:17 AM UTC

}// 140/140

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d/20654

u/joeytwiddle

Entrance to sietch as perceived by an insect with compound eyes
u/tomxor

Nice description, (and dweet) :)

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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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