Top dweets by u/magna

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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magna

remix of d/8781 by u/micahcowan

function u(t) {

for(c.width|=i=n=23;--i;)F=((f,m)=>Math.abs(m-t*f(i*1.5/n)*2e3%(2*m))),x.fillText([...x.font='5em 🅓🅦🅘🅣🅣🅔🅡'][4+i%7],F(C,2e3),F(S,1e3))

Jun 30 2018 4:28 PM UTC

}// 133/140

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u/micahcowan

Ha! Nice. 😀
u/micahcowan

Your use of ... '5em 🅓🅦🅘🅣🅣🅔🅡' to automagically limit it to one character, blew my damn mind. Is that your innovation, or did you get it from another? The useless JS things I learn here 😁
u/micahcowan

Wait, I'm amazed it even works, since those are each two chars in UTF-16. I thought JS deals in UTF-16, not -32? Is string subscripting more magical than I supposed? Time to go fishing through Ecma-262...
u/firegodjr

He's turning it into an array first, so the individual chars still act individually, and not as two UTF-16 chars. Array[x] works, String[x] only supports UTF-16.
u/micahcowan

Awesome, thanks. Had just figured that out when I refreshed the page to see if someone said that, heh!
u/micahcowan

You can see what's happening more clearly if you change 2e3 to 5e2. It's also interesting to set n=8, but then you also want to change 🅓🅦🅘🅣🅣🅔🅡 to 🅡🅓🅦🅘🅣🅣🅔
u/magna

@micahcowan It's a culmination of 1) spread syntax 2) using bullshit strings as font names that I've learned from others :)

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magna

function u(t) {

c.width=240
with(x)font='6em"',fillText('👌',110,110),scale(-1,1),translate(-160,30),rotate(-1.57),fillText('☝️',-110,100+S(t*4)*10)

Jun 27 2018 2:57 PM UTC

}// 131/140

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NSFW #nsfw #sorry

u/micahcowan

#emoji
u/Agnes

You could use clipping to have the pointing hand disappear into the OK hand if you placed the clip rectangle just right. I don't know how you would save up the characters though, maybe by using a for loop to only have one fillText call (but that would also eat characters with all the ?: statements you'd have instead).
u/magna

Yeah, clipping would make it awesome! Let's see if this can be golfed down significantly to open up space for some clipping.
u/Agnes

I posted a clipping remix. You can do scaling, translation and rotation in a single call to setTransform.

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magna

remix of d/8757 by u/micahcowan

function u(t) {

c.width|=D=C(r=3*S(t))
x.setTransform(1+9*D,U=S(r)*5,0,9+D,825-40*U,99*D)
for(i=9;--i;x.fillRect(-52.5+i*10,40,5,20))x.fillStyle=R(D<0&&255)

Jun 27 2018 5:38 AM UTC

}// 140/140

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u/micahcowan

😍
u/micahcowan

Very useful shortcuts, I'll have to use them in future. ...I'm thinking like a C programmer - in the C standard the order in which arguments are evaluated is unspecified; apparently the ES standard strictly defines order-of eval to be the intuitive left-to-right order. Good to know!
u/micahcowan

Ha, it feels "wrong" to set fillStyle 9 times in a row. But a great way to eliminate that last little character!
u/micahcowan

#default
u/magna

When you're out of characters you can shave "legally", you have to start compromising and enter the "wrong" and/or "meh, it's just a good approximation" territory :)
u/magna

Like Math.PI * 2 === 7
u/micahcowan

Heh, totally. :D
u/pythech

hack to save 2 chars: x.fillStyle=R(-D*9e7)
u/pythech

I guess that's "meh" territory
u/magna

@pythech nice!

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magna

remix of d/8740 by u/magna

function u(t) {

with(x)for(i=fillRect(0,0,c.width=w=255,w)|99;i--;fill(arc((t*b+i)*i+w&w,99+b,5+b/5,!beginPath(),7)))b=i&1?1:-1,fillStyle=R(w,b*w,b*w*.8,.2)

Jun 26 2018 12:21 PM UTC

}// 140/140

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Highway at Night - yellow headlight edition with westbound traffic bugfix

u/magna

#bokeh #traffic
u/magna

i&1?1:-1 can be i&1||-1

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magna

remix of d/8479 by u/magna

function u(t) {

t||(d=c.cloneNode()).getContext`2d`.fillText('🐱',0,15)
s=55
for(i=1e3;i--;x.drawImage(d,X=i&31,Y=i>>5,1,1,X*s+580,Y*s,s,s))x.rotate(C(t))

Jun 7 2018 4:06 AM UTC

}// 138/140

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If you wait long enough on macOS, it starts looking like you've zoomed into a gold-plated torus.

u/Qwitter

when you fail to cross off enough "post it note" to do reminders?

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magna

function u(t) {

c.width=480;x.font='150px a';x.fillText('Dwitter',0,180);for(i=48;i--;)x.drawImage(c,i*10,5,10,260,i*10,5+S(i+t*3)*5,10,260)

Mar 14 2018 5:10 AM UTC

}// 124/140

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Poor man's pool effect

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magna

remix of d/6495 by u/magna

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=64;i--;)for(x.setTransform(1,0,0,1,i%8*240,(i>>3)*135),j=99;j--;)x.clearRect(120+T(t+j/4)*50,67+T(j*i)*50,5,2)

Jan 26 2018 1:17 AM UTC

}// 140/140

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u/donbright

dude looks like a weird winter forest with black trees

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magna

remix of d/4560 by u/UnacceptableUse

function u(t) {

for(i=c.width|=0;i--;)x.fillRect(i,T(t*i/100)*1e3,50,50)

Dec 29 2017 6:23 AM UTC

}// 56/140

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magna

remix of d/3486 by u/cantelope

function u(t) {

for(x.globalAlpha=.07,x.fillRect(0,0,i=2140,i);i--;)x.clearRect(i*25%2e3+S(p=i*3+(k=C(t*2+i*9)**9))*(v=S(i*171+t)**99*50),i%1080+C(p)*v,4,4)

Nov 9 2017 3:43 PM UTC

}// 140/140

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Taking turns

u/cantelope

:D
u/crimbles

Makes me feel itchy

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magna

function u(t) {

c.width|=0
x.lineCap='round'
for(x.lineWidth=i=45;i--;x.stroke())x.beginPath(),x.arc(960,540,50+(j=i%10)*50,a=S(t+i)*3,a+Math.abs(C(t*5)))

Apr 28 2017 5:28 PM UTC

}// 138/140

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