Dweets awesomed by u/viberfoner

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: #Opposites

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katkip

remix of d/16998 by u/katkip

function u(t) {

f=(a,s,d,r)=>{if(d>5)f(a+d*S(r),s+d*C(r),d/2,C(r+t)*2);else x.fillRect(a,s,4,4)};t||(z=0);for(i=9;i--;)f(960,540,200,z+=2.093);

Dec 28 2019 3:51 PM UTC

}// 127/140

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u/DataMeta

#waitforit
u/DataMeta

Starts off seemingly random but resolves into a pattern

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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

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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

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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

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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

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pavel

function u(t) {

for(x.fillRect(0,0,i=c.width=960,i);i--;x.fillText(i*i,480+i*C(a)/4,i*.6))k=i%2,x.fillStyle=R(k*i,!k*i,0,.6+S(a=i/20+3*k-S(t))/2)

Dec 25 2019 8:04 PM UTC

}// 129/140

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Merry #christmas

u/pavel

#tree

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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

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

u/katkip

amazing! #street #road
u/ivylab

Really nice, howwww

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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

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bleb

u/Xen

hail blebs!

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viberfoner

remix of d/16876 by u/katkip

function u(t) {

a=67
with(x)for(fillRect(0,0,2e3,2e3),i=j=360;i--;beginPath(fill(arc(
960+C(t+i*a)*(j*2-i),
540+S(t+i*a)*(i),
i/12,0,7))))fillStyle=R(i*i,i)

Dec 25 2019 4:59 PM UTC

}// 140/140

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First dweet! One of many variations I came up with

u/joeytwiddle

Very nice #loop

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sybarita

remix of d/1105 by u/fson

function u(t) {

x.strokeStyle = R(15*t, 15*t, 15*t, 0.01);
x.arc(100+t*200,540+(C(t+Math.PI)+1)*200,500+(C(2*t)+1)*20, 9, 2*Math.PI);
x.stroke();

Dec 24 2019 6:31 AM UTC

}// 130/140

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*starry*

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ivylab

function u(t) {

for(i=f=1e3;i--;x.fillRect((S(t+i/f))*f*.95+c.width/2-10,i,23,2))x.fillStyle=R((C(t)+1)*99,8,S(t)*128)

Dec 23 2019 4:27 PM UTC

}// 102/140

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Tried to get to know S, t, and for loops. Smooth curtain

u/Xen

love it!
u/Leodude123

Cool!

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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

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u/LydianLights

I like the colors!
u/katkip

looks like flames

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