Hot dweets by u/jwc

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #ScaryMovies

show FPS hide FPS share fullscreen

jwc

function u(t) {

z=Math.random;if(!t)u[0]=u[1]=0;for(i=99;i--;B=u[1]++)X=z(),Y=z(),A=u[0]+=s=X*X+Y*Y<=1,x.fillRect(1e3*X,1e3*Y,g=2*s+2,g);throw("π≈"+4*A/B)

Jan 3 2021 7:27 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Monte Carlo approximation of π

u/Xen

love it!
u/CalSch

What's with u[0] and u[1]?

show FPS hide FPS share fullscreen

jwc

function u(t) {

eval(unescape(escape`𮠽𣑡𭁨𛡲𨑮𩁯𫐊𦀽𜡥𜰪𮠨𚐊𦐽𜑥𜰪𮠨𚐊𬰽𜐵𜀫𜐵𜀪𮠨𚐊𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱺𚀩𚠳𝠰𯐬𙁻𮠨𚐪𞐹𯐥𛀶𝐥𨀊𪑦𚁴𙐮𜰼𛠰𜠩𩡯𬠨𪐽𜀻𠐽𣑡𭁨𛡡𨡳𚁳𛰳𚡃𚀴𛠴𚡩𛱳𛐲𛠲𚐩𛁩🁳𞱩𚰽𝀩𩡯𬠨𪠽𛑁𞱪🁁𚰸𞱪𚰫𚑸𛡦𪑬𫁒𩑣𭀨𦀫𪐬𦐫𪠬𝀬𜠩`.replace(/u../g,'')))

Jan 3 2021 10:40 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Wrapped #candy

u/jwc

Uncompressed: z=Math.random;X=2e3*z();Y=1e3*z();s=150+150*z();x.fillStyle=hsl(${z()*360},${z()*99}%,65%;if(t%.3<.02)for(i=0;A=Math.abs(s/3*C(4.4*i/s-2.2)),i<s;i+=4)for(j=-A;j<A+8;j++)x.fillRect(X+i,Y+j,4,2)

show FPS hide FPS share fullscreen

jwc

function u(t) {

eval(unescape(escape`𮠽𚁳🐨𭠽𭀥𜐴𛠵𝰩🀲𚐿𜀺𭠭𜠊𩡯𬠨𨰮𭱩𩁴𪁼👪🐱𝠻𪠭𛐻𚑦𫱲𚁫🐲𜀻𪰭𛐻𚑦𫱲𚁩🐲𝐻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁷𚰲𚠨𬐽𜠴𛑩𚐪𠰨𜰪𮠫𪐯𜠴𛑷𛰴𩐳𚐪𚀱𛠵𚱃𚁺𚐩𚰨𬰿𬐺𜀩𚡓𚀵𝠮𝐵𚡶𚱩𛰲𝀩𛀵𝐰𚱫𚡫𚱩𚠶𛁩𛰵𛀶𚐩𭰽𜐲𞀪𪠫𪰥𜠮𜰪𝐶`.replace(/u../g,'')))

Jan 1 2021 10:54 AM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Grass in the wind

u/jwc

Uncompressed: z=(s=(v=t%14.57)<2)?0:v-2;for(c.width|=j=16;j--;)for(k=20;k--;)for(i=25;i--;x.fillRect(w+2*(q=24-i)*C(3*z+i/24-w/4e3)*(1.5+C(z))+(s?q:0)*S(56.55*v+i/24),550+k*k+i*6,i/5,6))w=128*j+k%2.3*56
u/jwc

Now that I’ve accepted that this will probably never fit in 140 chars uncompressed, I might consider working on smoothing the transition when the strong wind starts and stops…

show FPS hide FPS share 2 remixes fullscreen

jwc

function u(t) {

for(c.width|=i=q=r=s=.1;i<t;b=4*i/t,x.fillRect(960+16*(q*C(t)+s*S(t)),540+20*r,b,b),i+=.01)o=r,r+=(q*(28-s)-r)/50,s+=(q*o-2*s)/50,q+=(o-q)/5

Dec 24 2020 10:17 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Rotating Lorenz Attractor

u/jwc

Deleted my previous attempt and replaced it with this instead because I found an obvious savings that allowed me to improve rect size. If you can save 5 chars, you can replace s*S(t) with (s-28)*S(t) to center the rotation. Alternatively, if you can save one char, you can remove b, make the last two args of fillRect …,4*i/t,4), and use the previous centering method with a small concession to the rect shape.
u/magna

Done! d/21062
u/magna

The key was replacing (q*o-2*s)/50 with q*o/50-s/25
u/jwc

Nice!!

show FPS hide FPS share fullscreen

jwc

function u(t) {

for(t/=.6,c.width|=i=32;--i;)for(j=18;--j;x.fillRect(60*i-20*C(j+t),60*j-20*S(i+t),s,s))d=9-((16-i)**2+(9-j)**2)**.5/4,s=3+d*C(d/.8+t*2)**2

Dec 23 2020 4:05 AM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

jwc

function u(t) {

with(x)for(c.width|=b=190;p=t+b/.6,r=64-64*S(p),b--;d=6+S(p),fill(ellipse(960-240*(1+b%2)*C(p),6*b,d,d,0,0,7)))beginPath(fillStyle=R(r,r,r))

Dec 22 2020 2:29 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

I know it’s not that sophisticated, but it’s my first attempt at a dweet. I’m learning a lot looking at all the amazing work here.

u/jwc

I wanted to do something like d=6+S(p)*(1+b%2), but I couldn’t figure out how to make it fit.
u/pavel

arc?
u/jwc

Hah, of course! I was originally planning on trying an effect that squeezed one axis differently than the other and gave up on that, but didn’t think to replace ellipse with something else afterward. arc makes it perfectly fit in 140 with the above revision to d. Thanks :)
u/andrea270872

Nice. I get a vibe like "beam me up!" :)
u/jwc

This looks a lot better, but probably not different enough to be worthy of a remix :)with(x)for(c.width|=b=190;p=t+b/.6,r=64-64*S(p),b--;fill(arc(960-180*(1+b%2*2)*C(p),6*b,6+2*S(p)*(1+b%2),0,7)))beginPath(fillStyle=R(r,r,r))

You've reached the end.

dwitter.net | jwc (66)