Dweets awesomed by u/13thptr

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: #Food

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nystrand

function u(t) {

for(r=777,i=2e3;i--;x.fillRect(a+r,b+r,29,19))a=t*i*i*r%2e3-r,b=i-r,g=i/3+S(t)*a/24,x.fillStyle=R(A=S(t+a/g)*S(C(t/2)+t-b/g)*i,A+a/8,A+b,.3)

Sep 9 2019 7:02 PM UTC

}// 140/140

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u/yonatan

Nice one! How does it work?
u/yonatan

Oh I get it, a and b are coords used to generate the pixel color with g as tilt
u/pavel

very nice
u/13thptr

great style
u/aleamb

fucking awesome!!
u/KilledByAPixel

👍
u/magna

wowza
u/iverjo

Wow, very nice!
u/vain

Incredible

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mildlybean

function u(t) {

for(i=a=c.width|=0;i--;x.fillRect(i,i^X?F(i):Y,9,15))t?F=f=>S(f/99+t)*66+999:X=Y=v=b=0;Y+=++v;if(Y>F(X=(X+a+b)%a))Y=F(X),v=-v,b+=C(X/99+t)*9

Sep 7 2019 6:56 PM UTC

}// 140/140

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Gravity on a curved, moving surface

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u/KilledByAPixel

👍
u/atgz

very impressive
u/metamero

nice!! #gravity #physics
u/0x04

Nice to see that you cracked the 140 char mark! 👌
u/joeytwiddle

Like a roulette simulator! Can you guess where it will stop?
u/katkip

I consider this a life form
u/iverjo

Impressive for a dweet!

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dmoura

function u(t) {

c.width|=0
x.translate(960,540)
x.rotate(-t/2)
x.fillStyle = R(0,50,100,0.2)
for(i=0;i<1300;i+=.3)
  x.fillRect(C(i)*i,S(i)*i,i/6,i/8)

Sep 4 2019 10:50 AM UTC

}// 134/140

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Galactic swirl

u/13thptr

nice style
u/aleamb

stylish!
u/dmoura

thanks! :-)
u/lionleaf

#swirl
u/iverjo

Beautiful

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taupelink

remix of d/15575 by u/taupelink

function u(t) {

r=Math.random;x.beginPath();x.arc(X=r(x.fillStyle='#'+'0FE6B5F'.substr(n=r()**7*4|0,4))*2e3,Y=r()*1e3,++n**4+60,t,t+2),x.fill(x.lineTo(X,Y))

Sep 1 2019 10:44 PM UTC

}// 140/140

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Variant using four-byte RGBA codes

u/DataMeta

a channel with hex strings is fun. 38689D0 - berry bush
u/taupelink

I like!
u/joeytwiddle

This is close to a Memphis style pattern

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rodrigo.siqueira

remix of d/15559 by u/tomxor

function u(t) {

for(c.width=128,i=576;i-=1/16;x.fillRect(16*X,16*Y,Z,Z))
x.fillStyle=R(0,35,90),X=i%8,Y=i/128,
Z=1+C(20*T(Y+T(X*2))*C(X+T(Y*9))+t*4)**3/3

Aug 31 2019 12:58 AM UTC

}// 137/140

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Sea from above. #water

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u/jellyedwards

Amazing!
u/aleamb

YES!
u/aleamb

#realisti
u/aleamb

#realistic
u/tomxor

nice, sometimes the unfloored i/128 works in our favour, adds that overall gradient that makes it look like reflecting sky
u/katkip

nice
u/katkip

#tagfail
u/iverjo

Very nice water

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DataMeta

remix of d/15509 by u/DataMeta

function u(t) {

c.style.background=R(0,96,192);if(t<3)for(i=2096;i--;)x.fillStyle=R(l=S(t)*i/7.5,l*.7,l*.4),x.fillRect(i-99,1080-C(S(t+i/270))*S(t)*i/6,7,7)

Aug 30 2019 5:31 PM UTC

}// 140/140

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Sand dunes

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u/katkip

#realistic
u/katkip

nice
u/KilledByAPixel

👍
u/metamero

cool!!
u/DataMeta

thanks!
u/DataMeta

blue martian dunes in a dust storm: c.style.background='#CBA486';if(t<3)for(i=2096;i--;)x.fillStyle=R(l=S(t)*i/20,l/.65,l/.5),x.fillRect(i-99,1080-C(S(t+i/270))*S(t)*i/6,7,7)
u/joeytwiddle

#landscape

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tomxor

remix of d/15553 by u/tomxor

function u(t) {

for(c.width=128,i=576;i-=1/16;x.fillRect(16*X,16*Y,Z,Z))
X=i%8,Y=i/128,
Z=1+C(5*S(Y+C(X*3))+5*S(X+S(Y*3))+t*4)**3/3

Aug 28 2019 3:34 PM UTC

}// 115/140

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#lava

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u/aleamb

awesome!
u/katkip

i thought it's perlin noise. gj
u/tomxor

Never heard of it :) time for a quote: "Absolute Ignorance is the artificer [...] in order to make a perfect and beautiful machine it is not necessary to know how to make it" - Robert Beverley MacKenzie, 1868 ... gona keep my monkey fingers typing, maybe I will learn something.
u/taupelink

excellent
u/username

so what did you use to implement this noise?
u/DataMeta

115 bytes, clearly :)
u/KilledByAPixel

👍

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django

function u(t) {

w=c.width*=1;k=80;f=w/k;
for(i=0;i<k;i++)for(j=0;j<k;j++)p=j/k,x.fillStyle=R(0,p*255,p*128),x.fillRect(i*f,540,f,(1-p)*S(C(t+j)+i/10+j)*540)

Aug 20 2019 5:33 AM UTC

}// 140/140

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wavey

u/13thptr

nice style
u/katkip

nice

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rodrigo.siqueira

remix of d/15411 by u/rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=0;i++<r;x.globalAlpha=.05)x.fillRect(a-=S(Φ),b-=C(Φ),s=r/42,s)
r>8&&v(a,b,Φ+S(t*i**9)/4,r*=.9)}
v(960,540+300*C(t),t,99)

Aug 20 2019 1:03 AM UTC

}// 140/140

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Dendritic projections

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tomxor

remix of d/15454 by u/katkip

function u(t) {

a ++
throw a
}{a=1e3

Aug 19 2019 7:28 PM UTC

}// 20/140

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Variable initialisation with only +2 chars (hack)

u/tomxor

Saves up to 4 chars vs t||(a=1e3);
u/katkip

Ohh
u/katkip

#genius #exploit I didnt know about that. This is clever

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