Dweets awesomed by u/stefano

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: #Opposites

show FPS hide FPS share 2 remixes fullscreen

pavel

remix of d/11225 by u/veubeke

function u(t) {

T<150&&!D.some(d=>Math.hypot(d.p-p,d.q-q)<d.T+T)?x.beginPath(x.fill(x.arc(p,q,T+=2,0,7,0))):(D=t?[...D,{p,q,T}]:[],p=t**7%2e3,q=p*p%1e3,T=0)

Jan 8 2020 6:07 AM UTC

}// 140/140

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

Blots

show FPS hide FPS share fullscreen

pavel

function u(t) {

for(c.width|=i=4;i--;x.fill(x.arc(96*(8+i%2*4+2*o+C(a=Math.PI*(o?q:-q))),540+96*S(a),96,0,7)))q=t+3*(i>1),x.beginPath(o='001221'[~~q%6]-1)

Jan 7 2020 11:54 PM UTC

}// 138/140

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

Points

Show more comments…
u/pavel

Credit https://www.reddit.com/r/loadingicon/comment…
u/tylertoomey

Can you explain how you are declaring your variables? specifically in "8+i%2*4+2*o+C" you reference 'o' and 'C' before they have even been declared -- I think.
u/pavel

for(i=9;i--;/*code here*/)/*runs after code here*/
u/ivylab

Exactly the other way around, isn't it? First the code after the bracket runs and then the code in the brackets. Your declaration is behind them. c.width=1e3;for(i=9;i--;x.fillStyle='red')x.fillRect(112*i,0,100,1000) shows that too.
u/sigveseb

Or in other words, a for loop for(A; B; C) D; will run the different parts in this order: A B D C B D C B D C .. B
u/ivylab

Exactly what I think and meant. Well written @sigveseb
u/joeytwiddle

beginPath, arc and do-si-do 🕺💃 🎻
u/UEZ

#dance

show FPS hide FPS share 1 remix fullscreen

pavel

function u(t) {

for(i=c.width|=q=C(t);i--;x.fillRect(960+2e3*(X-j*q)/Z,540+46*s,s,-99*s))j=(i/30+t)%64,X=S(a=j+t)-S(t)+1.5/S(a*a),Z=j+X*q,s=42*(1+q*q)**.5/Z

Jan 1 2020 1:25 AM UTC

}// 140/140

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

Where am I?

u/andrea270872

3d forest POV... love it!
u/lionleaf

Arashiyama? Or maybe Wolfenforest 3D?
u/joeytwiddle

I like to take the corners gently with q=-S(t)/2

show FPS hide FPS share 1 remix fullscreen

pavel

remix of d/701 by u/sigveseb

function u(t) {

for(let i=4e3,j,s;j=--i>>4;x.fillRect(960+(j%8*2+i%2-8.5+C(t))*s,540+(i%16-8.5+S(t))*s,s,s))x.fillStyle=R(s=666/((j>>3)+1-t*7/11%1),s/2,s/4)

Dec 27 2019 10:14 PM UTC

}// 140/140

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

Show more comments…
u/lionleaf

Oh nice! You added forward movement
u/iverjo

Great remix!
u/New_Core

d/15165 ;)
u/katkip

instead of that let you can use i=4e3,j=s=0
u/pavel

The let is only there for performance to use up free chars. j and s don't need initializing. But i at 4e3 cant do 60fps without let on my machine.
u/pavel

Can just do i=2e3 if you are remixing and need chars
u/katkip

oh, i understand
u/sigveseb

awesome
u/Cloud

Wow

show FPS hide FPS share 1 remix fullscreen

DataMeta

remix of d/16988 by u/katkip

function u(t) {

c.width|=0;x.scale(23,23);for(i=96;i--;)for(j=54;j--;)if((i^j)%(g=2+~~t%7))x.fillRect(i+S(t*4+j/g)-1,j+S(t*4+i/g)-1,z=.9,z)

Dec 26 2019 5:35 PM UTC

}// 123/140

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

u/magna

Sweet!
u/sigveseb

very nice
u/gambit

hi im new! can you explain me "c.width|=0" what does it do? thanks
u/DataMeta

Welcome! It's a shorter way of clearing canvas pixels/state. Can be chained like so: for(c.width|=n=i=256;i--;). It can't be done here because we must clear the canvas before scaling it
u/includeRubiks

so cool

show FPS hide FPS share fullscreen

pavel

remix of d/16972 by u/yonatan

function u(t) {

for(i=n=c.width|=0;--i;x.fillRect(960+C(i/9)*y+S(3*t)*y-(k||((i&2)-1)*(2+i%7)*y),540-y,2*k||y/7,k/42||i%9*y))y=3/((i+27*t)/n%1-1),k=i%2*y

Dec 26 2019 1:34 AM UTC

}// 137/140

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

u/ivylab

I don't even ... this is so cool, like a forest
u/pavel

This thing ((i&2)-1)*(2+i%7) takes so many characters. If somebody can figure out a shorter way to generate random-ish positive and negative numbers that aren't too close to zero that would be awesome. 7*C(i) is almost perfect but gets close to zero so you'd have trees on the path.
u/pavel

Oh! 3/C(i) works well here, but has no bound which will be an issue in other contexts.
u/KilledByAPixel

👍
u/iverjo

Random Forest!

show FPS hide FPS share 2 remixes fullscreen

yonatan

function u(t) {

t*=44
for(c.width|=i=99;i--;x.fillRect(w+z*(y%8-2),y%4*k,3,-q))z=5e3/(i-t%1),x.fillRect(w=960-z+(S((y=t+i|0)/9)-C(t/9))*z,k=540+z,q=z*2,3)

Dec 25 2019 7:40 PM UTC

}// 138/140

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

https://twitter.com/ntsutae/status/120935675…

u/katkip

amazing! #street #road
u/ivylab

Really nice, howwww

show FPS hide FPS share fullscreen

viberfoner

remix of d/16876 by u/katkip

function u(t) {

with(x)for(i=j=360;i--;beginPath(fill(arc(
960+C(t+i*6)*j,
540+S(t+i*6)*j,
Math.abs(C(t+i*9)*100),0,7))))fillStyle=R(i*i,i)

Dec 25 2019 5:33 PM UTC

}// 123/140

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

bleb

u/Xen

hail blebs!

show FPS hide FPS share 2 remixes fullscreen

katkip

remix of d/16863 by u/KilledByAPixel

function u(t) {

with(x)for(fillRect(0,0,2e3,2e3),q=i=200;i--;beginPath(fill(arc(960+q*T(S(i+t)+i),540+400*C(C(i)+i*2-t*2)*i/q,i/5,0,7))))fillStyle=R(i*i,i)

Dec 17 2019 2:14 PM UTC

}// 139/140

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

u/LydianLights

I like the colors!
u/katkip

looks like flames

show FPS hide FPS share fullscreen

katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱴𯁼𚁬🐰𚐻𬀽𮀽🡻𮠽𜐻𪑦𚁸🀲𚑺🐰𞱩𩠨𮀼𝀩𮠽𜐻𪑦𚁸𙐲🐽𜀦𙡸𙐳🐽𜀩𮠽𜀻𩡯𬠨𪐽𝐻𪐼𮀻𪐫🐲𚑩𩠨𮀥𪐽🐰𚑺🐰𞱲𩑴𭑲𫠠𮡽𞱸𛡦𫱮𭀽𙰸𨱭𘠧𞱸𛡦𪑬𫁔𩑸𭀨𫀬𜠰𜀬𝠰𜀩𞱬👰𚁦𬡡𫑥𚐿𩡲𨑭𩐺𫀻`.replace(/uD./g,'')))

Dec 17 2019 2:13 PM UTC

}// 128/140

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

tried to make the fastest prime number checking algorithm (aks) #primes #prime #text #math

dwitter.net | stefano (11999)