Dweets awesomed by u/zanella

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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AnnanFay

remix of d/7082 by u/yonatan

function u(t) {

x.drawImage(c,t&3?0:960,t&1?0:540,960,540)
x.drawImage(I,480,270,960,540)
};{(I=new Image).src='//具.pw'

Mar 2 2018 12:49 AM UTC

}// 103/140

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!h6q: please link https://picsum.photos/1920/1080?random

u/AnnanFay

Change t&3 to t&4 if you want it to branch in all directions.
u/AnnanFay

*t&2

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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) {

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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DirtyDan

function u(t) {

p=Math.PI*2
for(c.width+=i=0;i++<500;)x.beginPath(),x.ellipse(960,540,540*i/500,540*Math.abs(S(t)),S(T(C(t/99*p)*p)*i/500*p),0,7),x.stroke()

Feb 28 2018 12:18 AM UTC

}// 140/140

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zanella

remix of d/7069 by u/BuRRak

function u(t) {

t?g?c.width|=g=0:onkeydown=e=>self[e.key]+=10:a=s=k=l=g=m=n=b=v=0;x.fillStyle=R(m-n,m-n,m-n);x.fillRect(s-a,l-k,b-v+10,b-v+10)

Feb 27 2018 6:01 PM UTC

}// 126/140

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Etch a Sketch 2.0: AS - left knob CCW and CW, KL - right knob CCW and CW, G - shake, MN - change color, BV - change pen size

u/zanella

Shouts to u/snydej for the awesome code golf in the original dweet!
u/donbright

amazing

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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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jellyedwards

function u(t) {

c.width|=r=550
with(x)for(j=S(t)/.11;z=j--*35;stroke(),beginPath(),y=r-(1e5-z*z)**.5,lineTo(r+z,y),arc(r,r,z,0,3),lineTo(r-z,y))lineWidth=20

Feb 27 2018 1:01 PM UTC

}// 140/140

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dots and loops album cover (https://en.wikipedia.org/wiki/Dots_and_Loops…)

u/zanella

Do Sgt. Pepper's Lonely Hearts Club Band next. :)
u/jellyedwards

it doesn't fit but I had a go! with(x)for(font="99px a",fillStyle='red',b=0,i=a=80;i--;fillText('BEATLES'[b=i%7],580+a*b,980+i/4))fillText(String.fromCodePoint(i&1?0x1F468+b%2:0x1F9D1,0x1F3FB+i%3),i%20*a,a+5*(i+b))

dwitter.net | zanella (15549)