Dweets awesomed by u/akm

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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dwardu

function u(t) {

r=n=>(Math.random()*n|0)*96
x.drawImage(c,r(19),r(10),192,192,r(20),r(11),w=96,w)
x.fillStyle=R(z=r(2)**2,z,z)
x.fillRect(r(20*9),r(11),w,w)

Mar 1 2018 8:03 PM UTC

}// 140/140

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Splits 1920px×1056px canvas into 20×11 grid of 96px×96px tiles. Once every 9 frames fills a random tile black or white. Every frame picks a random 2×2 group of tiles and draws it onto a random 1×1 tile at ½ the size.

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jylikangas

function u(t) {

for(c.width=250,t*=Y=w=69;Y--;x[f](-w+Y*7-S(t/w)*w,0,7,50+S(Y^w)*9))x[f='fillRect'](w-w/(z=Y)+S((v=Y+t)/w)*z*3,w+w/z,v&4?350/z:0,S(v/9)*3)

Mar 1 2018 9:50 AM UTC

}// 138/140

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OutRun :)

Show more comments…
u/sigveseb

Yeeees!
u/joeytwiddle

Whoa nice :D
u/Renaud___

wow
u/zanella

Just the road and the skyline effects alone are awesome. Dwitter is getting more and more awesome. :)
u/artfarnaa

thanks Jyklikangas. Your dwits are very motivating.
u/TheGreatRambler

Really nice!
u/aleamb

#road

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jylikangas

function u(t) {

x.transform(55,0,0,90,960,160)
x.fill(POIROT=new Path2D([...'M08Q4937C392607M04H7V3H0M00Q6063L03'].join` `))
x.scale(-1,1);x.fill(POIROT)

Feb 28 2018 4:25 PM UTC

}// 137/140

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Training spread syntax and Path2D with Hercule Poirot. :)

u/zanella

Wait, how did you call .join without parentheses?
u/jylikangas

That's ES6 stuff - I'm passing the function a template literal by using back-ticks
u/AnnanFay

Hmm, that's a neat trick.
u/artfarnaa

More of these please.... {:
u/iverjo

#path2d

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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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yonatan

remix of d/7105 by u/yonatan

function u(t) {

for(X=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,1,1))q=X*X+Y*Y,z=(9e3-q)**-.3,x.fillStyle=`hsl(${(t*9+X*z^Y*z)*22},50%,${95-q**.5}%`

Feb 28 2018 10:31 AM UTC

}// 134/140

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lit and colored

Show more comments…
u/donbright

!!!!!!!!!!!!!!
u/sigveseb

Lit af
u/magna

^
u/joeytwiddle

#lighting #sphere
u/FireFly

Holy cow!! :o
u/Cloud

Wooooow!!!
u/vain

amazing!

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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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yonatan

remix of d/7101 by u/yonatan

function u(t) {

for(A=c.width=99;A--;)for(B=57;B--;x.fillRect(A,B,s,s))X=A-50,Y=B-27,q=X*X+Y*Y,z=(2200+C(t)*2e3-q)**-.3,s=S((t*9+X*z^C(t)*9+Y*z)/9)

Feb 27 2018 8:26 PM UTC

}// 131/140

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yonatan

function u(t) {

for(X=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,s,s))q=X*X+Y*Y,z=(9604-q)**.5,s=z<99?S(((t*10+X*z**-.5)^(Y*z**-.5))/40):C(t/4)

Feb 27 2018 4:17 PM UTC

}// 128/140

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u/aleamb

amazing!
u/yonatan

shorter and uglier (98 chars): for(X=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,s=S((t*9+X*z^Y*z)/9),s))q=X*X+Y*Y,z=(9e3-q)**-.3
u/donbright

holy smokes, holy cow
u/iverjo

#sphere

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jylikangas

function u(t) {

for(c.width=Y=W=256,t*=w=99;Y--;x.fillStyle=R(t%w,Y,w))x.fillRect(w-w/(z=Y/9)+S((v=Y+t)/w)*z*7+(v&8&&w)/z,W/z+Y*C(v/50),v/8%W>9&&W/z,Y%60/z)

Feb 27 2018 12:52 PM UTC

}// 140/140

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Enjoy the ride but watch out for the missing track pieces! :)

Show more comments…
u/aleamb

wow! epic!
u/zanella

Damn!!
u/sigveseb

Crazy good!
u/artfarnaa

Crazy Epic!
u/jylikangas

Thanks!
u/aleamb

#rollercoaster

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akm

remix of d/7083 by u/DirtyDan

function u(t) {

c.width|=i=50
with(x)for(globalCompositeOperation='xor';i--;)beginPath(arc(985+S(a=t*i/17)*700,240+i*t+C(a)*230,i,0,7),i%2?stroke():fill())

Feb 26 2018 11:34 PM UTC

}// 139/140

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