Dweets awesomed by u/dwardu

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: #Opposites

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dwardu

function u(t) {

r=n=>Math.floor(Math.random()*n)
x.font='48px Verdana'
for(i=0;i<99;i++){
x.clearRect(p=r(40)*48,q=r(22)*48,48,48)
x.fillText(r(10),p,q+48)}

Feb 28 2018 3:51 PM UTC

}// 140/140

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u/donbright

fun
u/dwardu

😀

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dwardu

function u(t) {

c.width|=0
v=.8*C(t)
d=.3+.3*S(30*t)
x.beginPath()
x.moveTo(p=100+(100*t)%1720,q=540+440*S(t))
x.arc(p,q,100,v+d,v-d)
x.lineTo(p,q)
x.fill()

Feb 28 2018 2:16 PM UTC

}// 140/140

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dwardu

function u(t) {

u.f=u.f?1:m=μ=b=β=1
r=Math.random
x.beginPath()
x.moveTo(m,μ)
a=b;α=β
b=r()*960;β=r()*540
x.quadraticCurveTo(2*a,2*α,m=a+b,μ=α+β)
x.stroke()

Feb 28 2018 12:19 PM UTC

}// 140/140

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u/katkip

me when bored:

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dwardu

function u(t) {

x.setTransform(100,0,0,100,960,540)
x.rotate(t)
x.fillRect(1+S(T(t)*t),2+C(4*t),.05,.05)

Feb 28 2018 9:18 AM UTC

}// 88/140

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dwardu

function u(t) {

z=128+128*S(t*15)
x.fillStyle=R(z,z,z,1)
x.fillRect(0,0,20,1080)
x.setTransform(0.99,0,0,1,0,0)
x.drawImage(c,0,0,1920,1080,20,0,1920,1080)

Feb 27 2018 10:29 PM UTC

}// 139/140

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dwardu

function u(t) {

r=n=>Math.floor(Math.random()*n)
for(i=0;i<200;i++){z=r(256)
x.fillStyle=R(z,z,z,1)
x.fillRect(r(40)*48,r(22)*48,48,48)}

Feb 27 2018 7:27 PM UTC

}// 120/140

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BirdsTweetCodersDweet

remix of d/6980 by u/BirdsTweetCodersDweet

function u(t) {

with(x)for(c.width|=i=37,globalCompositeOperation='xor';i--;beginPath(fill(arc(960+S(n=i*(C(t*.5)*2+.7))*n-C(n),540+S(n)-C(n)*n,i*i,0,7))))x

Feb 18 2018 12:26 AM UTC

}// 140/140

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Hah, another cool one!

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cantelope

function u(t) {

for(V=(c.width=1e3)/2,H=j=99;j--;x.stroke())for(x.beginPath(),i=H,Z=i-j;i--;x.lineTo(V+X/Z*V,(S(i/5+C(t)*4)*C(j/9-t*7)*j/9+30)/Z*V))X=H-i*2

Aug 6 2017 6:10 AM UTC

}// 139/140

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mostly what i was going for... not exactly.

u/joeytwiddle

smooth

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recursive

function u(t) {

for(d=256;--d;)for(X=-32;++X<32;x.fillRect(960+X*8e3/d,200+7e4/d-h,8e3/d,40))x.fillStyle=R(h=(C(a=d/9+t*6)+C(X/9+a/3))*35,g=h+C(X^d)*6+90,g)

Mar 8 2017 11:51 PM UTC

}// 140/140

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Ocean waves

u/donbright

speechless
u/dbonemcshumonster

so dope
u/joeytwiddle

#sea #ocean #water #waves #liquid #wet #salty

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iverjo

function u(t) {

c.width=384;for(i=20;i--;)for(j=9;j--;)if(!i||(i^j)%2){x.fillStyle=R(a=i?0:240),x.fillRect(i*20+j%2*4*S(t)-25+9*S(j),j*20,i?20:420,i?20:2)}

Mar 2 2017 6:29 PM UTC

}// 139/140

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Optical illusion thingy. It's supposed to look like the red lines are not really straight and parallel. #bartjs

u/sfz

it works, trippy!
u/iverjo

Fun fact: This was actually the first idea I ever had for a dweet, back in december 2015 when sigve made https://github.com/sigvef/arktis-tweet-demo/
u/donbright

great illusion
u/SpecialAgent

Expecting a gorilla and some barrels to come hurtling down. Love it.
u/iverjo

#opticalillusion

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