Dweets awesomed by u/jasnh

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: #ScaryMovies

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jasnh

remix of d/26297 by u/jasnh

function u(t) {

t?0:q=9;p=[],F=(a)=>x.fillRect(a%q*9,(a/q|0)*9,9,9),c.onclick=e=>{f=d=i=1;q++;for(c.width+=0;f?i<1e5:f=d=i;i++,f--)(p[i]=!p[i-d])?F(i):0}

Jun 3 2023 3:17 PM UTC

}// 137/140

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wrapping that sequence in all the aspect ratios

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danny@hille.dk

remix of d/21523 by u/danny@hille.dk

function u(t) {

w=c.width=128;for(i=1e4;i--;)x.fillRect(X=i%w,Y=i/w|0,Math.min(s=Math.hypot(X-64-
C(t)*40,Y-36-S(t*1.2)*28)/16,.4/((X^Y)%7)),s)

Jun 2 2023 9:45 PM UTC

}// 127/140

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bump mapping remix

u/Joachim

Really nice #lighting
u/@noel

Beautiful. I need to dig into this, to understand how this actually works.
u/rodrigo.siqueira

Wow! Replace X^Y with X|Y to generate Sierpinski triangles. Replace Math.min with Math.max for a more dramatic effect. Remove |0 for improved golfing (a minimal visible effect on top alignment). Replace "t*1.2" with "C(i+t)*6" for the "water effect".
u/jellyedwards

Wow that's amazing!!

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jasnh

remix of d/26296 by u/jasnh

function u(t) {

f=d=i=1,p=[],F=(a)=>x.fillRect(a%128*10,(a/128|0)*10,10,10) 
for(0;f?i<1e6:f=d=i;i++,f--)(p[i]=!p[i-d])?F(i):0

Oct 13 2022 8:10 PM UTC

}// 110/140

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That's more like the Thue-Morse sequence Standupmaths covered in 2015

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jasnh

function u(t) {

p=[],F=(a)=>x.fillRect(a%190*10,(a/190|0)*10,10,10) 
for(f=d=i=1;f?1:f=d=i;i++,f--)(p[i]=!p[i-d])?F(i):0

Oct 13 2022 8:01 PM UTC

}// 104/140

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Interesting, though not what I actually wanted

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tomxor

remix of d/25759 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𜀻𪐭𛐻𥀽𤰨𜠪𭀫𜠪𣑡𭁨𛡡𭁡𫠲𚁃𚁘𛰸𚐬𤰨𭀫𦐯𞀩𚐩🠰𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐭👡𛁖𛐽𨠩𞱁𚰽𥐯𝀸𚱷𛁁𙐽𭰬𠠫👖𛰲𝀫𭰬𠠥👷𛁖𚰽𞀭𥠯𞀻`.replace(/u../g,'')))

Oct 10 2022 2:14 PM UTC

}// 140/140

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Infinite Falling Marble #Physics

Show more comments…
u/tomxor

This sh**'s chess, it ain't checkers
u/magna

Crazy!
u/vain

Holy sh*t... 😮 that's incredibly impressive! 👍 Really enjoying watching it. Great work!
u/lonestar108

blows my mind every time
u/neimad

wizardry
u/mrperson59

Delete the last 4 chars in the compressed string and watch the ball wobble around like mad
u/tomxor

Yeah -V/8 is for velocity damping on Y. Which is necessary with velocity based collision resolution. An alternative that doesn't require this is verlet integration, but that requires far more characters.
u/Qwitter

Cool
u/nix

r u effin kiddin me?

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jasnh

function u(t) {

c.outerHTML=`<a href="javascript:f=()=>{document.querySelector('body').style.backgroundColor='red'};f()">h</a>`

Aug 28 2022 2:42 PM UTC

}// 111/140

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favelets are great

u/jasnh

you can drag the h into your bookmark bar (if existent) or side tray (if open) and can then click it anywhere!

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pavel

function u(t) {

for(i=c.width|=h=1.5708;y=i--%3-1||S(i);x.fillRect(960+16*S(a+=i*h+t/3)/p,540-9*C(a)/p+13*r*y,4,4))r=9+9/(1+i**S(i*i+t)),p=S(a=i%3*i%h+.8)/r

Mar 30 2022 10:47 PM UTC

}// 140/140

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Hypercube #beesandbombs

u/vain

very cool. like the morphing / moving dots / lines #cube #3d
u/tomxor

Very neat. The migration of the points gives it quite an etherial look.
u/aleamb

amazing!

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jasnh

remix of d/25211 by u/jasnh

function u(t) {

var F= b => Math.abs(((t*60)%b)*510/b-255);
x.fillStyle =R(F(91),0,F(63));
x.fillRect(F(125)*4.3,F(120)*2,F(125)*4.3,F(120)*2);

Mar 28 2022 6:16 PM UTC

}// 127/140

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Funkier animation that slightly looks 3D

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jasnh

function u(t) {

var F=function(b,m){return Math.abs(((t*60)%b)*510/b-255)};
x.fillStyle =R(F(91),0,F(63));
x.fillRect(19,0,F(200)*5,1000);

Mar 27 2022 10:43 PM UTC

}// 122/140

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beginners first dweet

u/Xen

Welcome to the dwitter family!
u/jasnh

With unused m parameter to function

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rodrigo.siqueira

remix of d/25033 by u/rodrigo.siqueira

function u(t) {

for(c.width=m=2e3;m--;x.fill())Y=m/3,r=Y/((m/53-t)%6),x.beginPath(x.fillStyle=R(p=m*S(m*30),p/8)),x.arc(960+C(m)*r,540+S(m)*r,Y/5,Y,m%3+Y)

Mar 27 2022 3:08 PM UTC

}// 138/140

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Fragments (they will come back after a while)

dwitter.net | jasnh (229)