Dweets awesomed 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.

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Current theme challenge: #Food

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Xen

remix of d/8790 by u/alien

function u(t) {

c.width=600
for(i=54;i--;)for(j=39;j--;)x.fillText(String.fromCharCode(i/S(t)-j/C(t)),i*9,j*9)

Jul 1 2018 11:06 PM UTC

}// 94/140

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alien

function u(t) {

c.width=500
x.font='10px'
for(i=0;i<100;i++){
 for(j=0;j<100;j++){
 x.fillText(String.fromCharCode((i*i+j*j+frame>>3)),i*10,j*10)
}}

Jul 1 2018 10:24 PM UTC

}// 132/140

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u/Xen

Nice!

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jylikangas

function u(t) {

c.width|=P=(i,j,a,d)=>d&&x.stroke(new Path2D('M'+[i,j,i+=S(a)*99,j+=C(a)*99]))&P(i,j,a+C(d/2+t)/3,d-1)&P(i,j,a-C(t/2)/3,d-1);P(960,999,66,9)

Jul 1 2018 10:50 AM UTC

}// 140/140

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Fractal in the wind

u/micahcowan

Beautiful!
u/aleamb

#fractal #path2d
u/fujimotos

Looks like silver grass.

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micahcowan

remix of d/8786 by u/alien

function u(t) {

c.width|=t?1:u=s=0
s-=s<=0?s:2e-4
a=9
b=a*9
onclick=e=>s+=.05
x.setTransform(-(m=9*S(u+=s)),n=9*C(u),n,m,a*b,b*5)
x.fillRect(-a/2,-b/2,a,b)

Jul 1 2018 5:22 AM UTC

}// 139/140

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Added friction to u/alien's original. #fidgetSpinner

u/alien

:D !!!! oh wow!!!!! that's so cool.

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alien

function u(t) {

t?1:s=0
c.width|=a=9
b=a*9
onclick=e=>s+=5
l=s*t+1.57 
n=C(l);m=S(l)
x.setTransform(9*n,9*m,-m*9,n*9,a*b,b*5)
x.fillRect(-a/2,-b/2,a,b)

Jun 30 2018 10:09 PM UTC

}// 135/140

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Just click on the stick

u/micahcowan

#fidgetSpinner
u/micahcowan

I added friction :) d/8787
u/aleamb

#interactive

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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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Show more comments…
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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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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micahcowan

remix of d/8742 by u/micahcowan

function u(t) {

with(x)for(c.width|=i=n=23;--i;)F=((f,m)=>Math.abs(m-t*f(i*1.5/n)*2e3%(2*m))),beginPath(),arc(F(C,1920),F(S,1e3),30,0,7),fill()

Jun 30 2018 5:50 AM UTC

}// 127/140

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Many more #ball s! n=100 makes a neat pattern

u/joeytwiddle

Nice work! #bounce

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micahcowan

function u(t) {

c.width|=0
for(i=10;--i;)h=1+i+Math.abs(1-t%2)*6,m=d=>(h/d%2*128),x.fillStyle=R(m(4),m(2),m(1)),x.fillRect(h*100,400-100*S(h),50,200);

Jun 30 2018 5:00 AM UTC

}// 134/140

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Multi-color inchworm #default

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colinpt

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#1001"))arc(920,540,k/1,v=k%1*9+S(t*9999-k/3)+t,v+.1),strokeStyle="white",stroke()

Jun 30 2018 3:59 AM UTC

}// 140/140

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u/magna

Wow!

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