Dweets awesomed by u/artfarnaa

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: #Food

show FPS hide FPS share fullscreen

Xen

remix of d/14716 by u/username

function u(t) {

with(x)for(k=i=2e3;i---99;beginPath(fill(arc((i**3+p)%2e3,(i*i+p)%k,k/(i/(9+S(p)*8)),0,7))))fillStyle=`hsla(${i+(p=t*i)},99%,60%,.01`

Jun 24 2019 7:14 AM UTC

}// 133/140

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

rainbow clouds

u/Xen

#waitforit
u/joeytwiddle

Variations: change i*i+p to i**t+p (fine) or i^p+t (coarse)
u/joeytwiddle

On iOS, slay the grey with 65% rainbow
u/Xen

#clouds #rainbow

show FPS hide FPS share fullscreen

rodrigo.siqueira

remix of d/13412 by u/rodrigo.siqueira

function u(t) {

if(t<1)with(x)fillStyle=R(9,20,70),fillRect(0,0,42,99),rotate(Math.PI*.8),translate(-420,-800),drawImage(c,0,0,1e3,1e3),translate(-920,-450)

Jun 23 2019 10:23 PM UTC

}// 140/140

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

Blue Starfield - color version

u/donbright

rodrigo you are a legend. if you wrote a book i would buy it

show FPS hide FPS share fullscreen

KilledByAPixel

remix of d/14717 by u/rodrigo.siqueira

function u(t) {

t?x.fillStyle=`hsl(${t*9} 99%${40+40*S(t*9)}%)`:X=Y=Z=9
Z+=(X*Y-Z)/59.1,X+=(Y-X)/11,Y+=X*(28-Z)/99
x.fillRect(960+X*48,1200-Z*24,q=4+9*Y,q)

Jun 23 2019 7:40 PM UTC

}// 139/140

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

Another 3D Lorenz Attractor #slowdraw

u/katkip

#perspective
u/donbright

lol

show FPS hide FPS share 2 remixes fullscreen

KilledByAPixel

remix of d/14717 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=4010;i--;i<2e3&&x.lineTo(960+(X*C(t)-Y*S(t))*45,1160-Z*23))Z+=(X*Y-Z)/39,X+=(Y-X)/13,Y+=X*(28-Z)/99
x.fill('evenodd')

Jun 23 2019 6:49 PM UTC

}// 140/140

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

3D Lorenz Attractor

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

remix of d/14714 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=j=270;j-=9;)for(beginPath(lineWidth=i=6);i--||stroke();arc(960+j*C(b=i*1.26),540+j*S(b),j,z=t+b,z+2.53))strokeStyle=R(j)

Jun 22 2019 8:44 PM UTC

}// 140/140

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

Semicircle Pinwheel #3

show FPS hide FPS share 1 remix fullscreen

pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👦👧🐾𚁫𙐱𝠦𙠱𚱫𙐲𚠮𝀱𝀩𚡧𚁡🐮𝰸𝐴𚠨𪰫𜠯𚀱𚰱𩐳𚠪𚁴𙐱𚠴𛑩𚐩𚐩𛁫🐵𝰻𪐽𛐭𪰾🠴𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𝰰𜀪𦀯𮠭𬰬𝐴𜀫𝰰𜀪𦐯𮠭𬰬𬰪🐲𛁳𚐩𦱘𛁙𛁚𧐽𦱘👦𚁃𚐬𪐭𜠬𩠨𤰩𛁘𛁩𛐲𧐮𬱬𪑣𩐨𭀥𜰩𛁺🐳𚱚𛁳🐹𞐯𮠯𮠻`.replace(/u../g,'')))

Jun 19 2019 3:43 AM UTC

}// 139/140

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

Rubik's Cube Movement

Show more comments…
u/pavel

191 for(c.width|=f=g=>(k%16&&1+k%2*.414)*g(a=.7854*(k+2/(1+1e3**(t%1*4-i)))),k=57;i=--k>>4;x.fillRect(960+700*X/z-s,540+700*Y/z-s,s*=2,s))[X,Y,Z]=[X=f(C),i-2,f(S),X,i-2].slice(t%3),z=3+Z,s=99/z/z
u/katkip

too good.
u/username

Rubik's Cubes cannot move the middle layer
u/pavel

If you hold the sides the middle moves, no? How could it not!
u/pavel

Here are notation-only moves for(c.width|=f=g=>(k%16&&1+k%2*.414)*g(a=.7854*(k+y*2/(1+1e3**(t%1*4-i)))),k=57;i=--k>>4;x.fillRect(960+700*X/z-s,540+700*Y/z-s,s*=2,s))[X,Y,Z]=[y=i-2,X=f(C),f(S),y,X].slice(t%3),z=3+Z,s=99/z/z
u/username

Technically you are moving both sides at the same time in that case instead of moving the middle layer.
u/katkip

^
u/pavel

That's not what technically means. You have a mental model that only permits sides to move, and you have that model because adding middle rotations would be notationally redundant in that model. This does not mean middle rotations are somehow impossible or that they definitely consists of two side rotations.
u/username

Erm, the middle layer is attached to the core, that is what I mean. It is about the construction of a Rubik's Cube.
u/username

http://www.madehow.com/images/hpm_0000_0007_…
u/pavel

Still seems like this is a matter of perspective. You are chosing a perspective in which the core is always fixed, even though the motion I am describing specifically involves holding the two sides fixed and rotating the core... In my reference frame the core is rotating. So what if the core contains more parts than the side pieces when you take the cube apart?
u/13thptr

that escalated quickly
u/donbright

maybe they dont actually move like this... but they should!

show FPS hide FPS share 1 remix fullscreen

veubeke

function u(t) {

t?x.rotate(.1):x.translate(960,540)
for(i=M=(6+Math.random()-t/4)*80;i-->0;x.fillRect(0,i,M/10+5,1))x.fillStyle=`hsl(0,60%,${M/13+50/M*i}%)`

Jun 17 2019 8:11 PM UTC

}// 140/140

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

u/joeytwiddle

#flower

show FPS hide FPS share 2 remixes fullscreen

rodrigo.siqueira

remix of d/14642 by u/rodrigo.siqueira

function u(t) {

A=Z=a=b=t-3;s=180
for(i=1e4;--i;)x.fillStyle=R(a*55,b*20,S(b-a)*99),x.fillRect(850+a*s,350+b*s,.7,.8),
a=1-b+Math.abs(a-S(a+2))/2,
b=A,A=a

Jun 17 2019 3:04 PM UTC

}// 138/140

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

Patterns from the Gingerbread Man #attractor

u/Xen

sexy!
u/katkip

Nice #chaos
u/rodrigo.siqueira

#gingerbreadman
u/iverjo

Fascinating!
u/Qwitter

Wow, islands, everywhere

show FPS hide FPS share 5 remixes fullscreen

KilledByAPixel

function u(t) {

c.width|=F=W=>250*W(b=i*.785)
for(i=8;i--;)
for(j=0;j<4;)
x[j++?'arc':'moveTo'](960+F(C),540+F(S),250,z=t/3+j/.637+b,z)
x.fill('evenodd')

Jun 16 2019 6:23 PM UTC

}// 137/140

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

#beesandbombs 🐝 💣

u/katkip

perfection

show FPS hide FPS share fullscreen

katkip

function u(t) {

c.width*=1;if(!t){z=[];for(i=99;i--;)for(j=99;j--;)z.push({x:i,y:j})}
for(q of z)x.fillRect(500+(q.x+=C(q.y/9))*9,100+(q.y+=C(q.x/9))*9,6,6)

Jun 15 2019 10:11 AM UTC

}// 140/140

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

Did someone say "chaos"? Here's something that rotates fluid-like

u/katkip

#chaos
u/KilledByAPixel

i like this one

dwitter.net | artfarnaa (12180)