Dweets awesomed by u/gormisdomai

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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aemkei

remix of d/1137 by u/mxfh

function u(t) {

r=500;c.width^=0;for(I=φ=2;φ>-2;φ-=1/2e3)x.fillRect(C(φ)*S(λ=φ*r-t)*r+999,S(φ)*r+520,W=(16&(T(I=I*9%32432)+2))*C(λ/2),W)

Mar 20 2017 10:34 PM UTC

}// 120/140

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A tiny planet

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tomkh

function u(t) {

for(c.width=i=1920;i--;){for(g=30,h=63&i,v=i>>6,e=g,k=20;k--;)r=S(k-t)+1-h/g,d=C(3*k+t)+1-v/g,e-=1/(d*d+r*r+.02);x.fillRect(h*g,v*g+99,e,e)}

Mar 5 2017 7:34 PM UTC

}// 140/140

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u/FireFly

Sweet! I need to read up on how to metaballs
u/SpecialAgent

Nice!
u/donbright

great!!!
u/iverjo

Impressive!
u/iverjo

#metaballs
u/vain

This looks so fucking cool! Unbelievable this is produced by only 140 chars of code

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recursive

function u(t) {

c.width=256;
for(X=255;X--;)for(Y=144;Y--;)
if((q=C(X/8+C(t*7))+C(Y/8+S(t*8))-C(t*3)*2)>0?q<.2||X+t*30&4:Y+t*30&4)x.fillRect(X,Y,1,1)

Mar 5 2017 6:27 PM UTC

}// 133/140

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gormisdomai

remix of d/1273 by u/gormisdomai

function u(t) {

w=99;for(X=-30;X<w;X++)
for(Y=-30;Y<w;Y++){
x.fillStyle=R(99*(X%2),99*(Y%3),0);;
x.fillRect((X+S(t)*Y)*w-200,(Y+C(t)*X)*w-200,w,w)}

Mar 3 2017 10:46 PM UTC

}// 131/140

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Dislocation #4

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gormisdomai

function u(t) {

(a=(X,Y,w,h,s)=>{for(i=X;i<w;i+=s)for(j=Y;j<h;j+=s)x.fillText("♦",i-j,(i+j)/2)})(d=300,-d,1e3,d,9);t<1?a(d,0,d+t*d,9,5):a(600,0,609,d*t-d,5)

Mar 3 2017 9:37 PM UTC

}// 140/140

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playing with isometric coordinates

u/Niklas

I like iso

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hamptonio

function u(t) {

r=540;m=t%99|0;for(n=1;n<m;n++){c.width=2e3;for(i=0;i<6.3*n;i+=.01){q=r*C(i*m/n);x.lineTo(2*r+C(i)*q,r+S(i)*q)}x.fill("evenodd");x.stroke()}

Mar 3 2017 6:12 PM UTC

}// 140/140

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u/iverjo

Kudos!
u/donbright

excellent

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New_Core

function u(t) {

c.width=1920;for(i=16;i--;)x.ellipse(1e3+300*S(t+i*.1),500+50*C(t+i*.1),160*S(-i*.5)+160,50*S(i*.1)+5,1.6+.5*S(t*.5),9.5,0,6.3);x.stroke();

Mar 3 2017 3:31 PM UTC

}// 139/140

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Show more comments…
u/sfz

wow creative!
u/sfz

reduced it by about 15 bytes in case you want to try to do something else with the extra room: c.width|=0;for(i=16;i--;)x.ellipse(1e3+300*S(t+i/9),500+50*C(t+i/9),160*S(-i/2)+160,50*S(i/9)+5,1.6+S(t)/2,9,0,7);x.stroke()
u/iverjo

So good!
u/sigveseb

is that a pseudo-3D fish? super nice!
u/donbright

marvellous
u/magna

WAAAAT
u/SpecialAgent

Magnificent depth!
u/joseprio

Really impressive :)
u/Kalanchoe

Amazing!
u/ArtsyBiker1

WHOA
u/gautjac

beautiful
u/21medals

Reduced it ±20 bytes and added beginPath() without changing any values:
u/21medals

for(c.width|=i=16;a=i--/10;x.stroke())x.beginPath(),x.ellipse(1e3+300*S(t+a),500+50*C(t+a),160*S(-i/2)+160,50*S(a)+5,1.6+S(t/2)/2,9.5,0,6.3)
u/New_Core

#fish
u/joeytwiddle

#model
u/Cloud

https://www.dwitter.net/d/17352
u/vain

incredible 3d fish

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scottglz

function u(t) {

P=540;with(x){t||fillRect(0,0,w=1920,2*P);beginPath();strokeStyle=`hsl(${t*40},66%,66%)`;arc(P,P,P,0,7);stroke();drawImage(c,.7,.6,w,2*P-2)}

Mar 2 2017 10:51 PM UTC

}// 140/140

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u/iverjo

Beautiful!
u/sfz

Dude!
u/sigveseb

quite nice!
u/SpecialAgent

Wow!

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ivansanchez

function u(t) {

for(i=0;i<300;i++)h=(t+i)*78%360,x.fillStyle=`hsl(${h},99%,50%)`,x.fillRect(i%20*99,~~(i/20)*99,99,99)

Mar 2 2017 6:27 PM UTC

}// 102/140

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u/iverjo

#bartjs

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AaronGiles

function u(t) {

t*=4;x.rotate(0);c.width|=0;for(i=255;i>=0;i-=.1)x.fillStyle=R(i,i^128,256-i,i/256),x.rotate(i),x.fillRect((200*t+i*7-200)%1999,0,60,10)

Mar 2 2017 8:29 AM UTC

}// 136/140

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