Dweets awesomed by u/hope4tg

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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firegodjr

function u(t) {

t||x.translate(960,540)
x.fillRect(-25,-25,500*C(t),50)
x.drawImage(c,-960,-540)
x.rotate(0.001*S(t)+.001)
x.fillStyle=`hsl(${t*9},99%,50%`

Jul 5 2018 4:27 PM UTC

}// 139/140

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keithclark

remix of d/8799 by u/keithclark

function u(t) {

for(c.width=240,Z=5;Z>0;Z-=.1)for(Y=X=-60;X<60;x.fillRect(120+X++/Z*9,45-Y/Z,1/Z*24-Z,99))x.fillStyle=R(Y-=7*C(X*.4^Z+t*6),Z*50-Y,-Y/87<<8)

Jul 3 2018 11:50 PM UTC

}// 139/140

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This one has water - not flat unfortunately. Had to trade off the pseudo-shading to fit the colour change int

u/zanella

OH MY GOD! I stayed out of Dwitter for a couple of days, and suddenly it has become Shader Toy! :)
u/hollo47

This is so good! #landscape
u/sigveseb

with water! #water
u/Cloud

WOOOOOOOOOOOOOOOOOOOOOOOW!!!!
u/rep_movsd

Underrated AF

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firegodjr

function u(t) {

with(x)for(x.m=e=>fillStyle=e,m("#0001"),fillRect(0,0,2e3,2e3),D=i=500;i--;)m("#f0f"),fillRect(S(i)*S(C(i)/1.27-t)*D+960,C(i)*D+530,10,10)

Jul 3 2018 5:03 PM UTC

}// 138/140

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Inspired to replicate https://www.reddit.com/r/loadingicon/comment…

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pythech

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#0001"))arc(960,540,k/4,v=k%4*2*S(t-k)*C(t-k*9)+t,v+.2),strokeStyle="red",stroke()

Jun 30 2018 10:49 AM UTC

}// 140/140

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u/magna

Stylish! #radar

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pythech

remix of d/8694 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=1e3;i--;fill())beginPath(fillStyle=i%2?'#fffe':`hsl(${t*i/3},99%,50%)`),arc(60*(i/3)-t*74,500+400*S(i*t/30),200,0,9)

Jun 22 2018 6:06 AM UTC

}// 140/140

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#waitforit

u/Galaxtone

Oh my gawd, it just keeps going
u/Galaxtone

I like the bits when it gets stable and makes a line of rainbow, and... it's gone.
u/pythech

#epilepsy alert

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pythech

remix of d/8693 by u/pythech

function u(t) {

c.width|=0
t/=3
with(x)for(i=1e3;i--;fill(),fillStyle=k?'#fff':R())beginPath(k=i%2),arc(60*(i>>1)-t*222,500+400*S(i*t/10),200,0,9)

Jun 22 2018 4:13 AM UTC

}// 130/140

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#waitforit

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Kobrasadetin

function u(t) {

for(z=b=45,t=T(t/b)*b,t+=C(t)/b,i=0;i<b*b;j=i%b-1,k=i/b>>0,x.fillRect(j*b,k*b,b,b),z=305*(S(C(j)*t)*S(C(k)*t)+.4),i++)x.fillStyle=R(z,2*z,z)

Jun 21 2018 11:05 AM UTC

}// 140/140

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u/S.T.L.K.R.

İyi bayramlar
u/hope4tg

Muazzam
u/pythech

İyi bayramlar, u/S.T.L.K.R.
u/joeytwiddle

QR code reader's nightmare
u/DataMeta

Super neat

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lionleaf

remix of d/8639 by u/pythech

function u(t) {

c.width|=0
with(x)for(translate(900,500),i=9*t;i-->0;fill())fillStyle='hsl('+9*i+',99%,50%)',fillRect(5*i,0,a=40*S(i*.9)+60,a),rotate(-3.88)

Jun 19 2018 1:07 AM UTC

}// 140/140

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#confetti remix! Had to go to squares to squeeze color in, but should be possible to golf back to circles

u/BalintCsala

You don't have to close the hsl function
u/redactedhoptional

You can use a template string in the color string, so hsl(${9*i},99%,50%, it saves 1 character. You could also make it translate(960,540) so it is correctly centered.
u/redactedhoptional

Also also, you can remove fill(), and round the -3.88 to -3.9 to save a character.

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aemkei

remix of d/8633 by u/aemkei

function u(t) {

c.width=600;x.font='9em"';for(i=3;i--;x.fillText(T[0]+T[1]+T[2],40,240))(t-(R|0))<i+2?T[i]=[...'💰🔔🍒🍌🍉'][(i*R+9*t|0)%5]:S;onclick=_=>R=t

Jun 18 2018 7:25 PM UTC

}// 135/140

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#slotmachine Click to play!

u/aemkei

136: https://www.dwitter.net/d/8647
u/aemkei

(sorry, the 136 version was not working)
u/aleamb

lol
u/aleamb

nice #game
u/joeytwiddle

#slots

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pythech

function u(t) {

c.width|=0
with(x)for(translate(900,500),i=10*t;i-->0;fill())beginPath(fillStyle='red'),arc(5*i,0,20*C(i*.9)+30,0,9),rotate(-Math.PI*2*.618)

Jun 18 2018 3:43 AM UTC

}// 140/140

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.618 is an approximation to the golden ratio. Putting .5 == 1/2 will create 2 spokes. Similarly .6 == 3/5 will create 5 spokes.

u/pythech

Inspired by Numberphile: https://www.youtube.com/watch?v=sj8Sg8qnjOg
u/DataMeta

I really dig it!
u/aleamb

love it!
u/zanella

You had me at "golden ratio".

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