Dweets awesomed by u/Kalanchoe

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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3bl3gamer

function u(t) {

c.width=256;for(i=256;i--;)for(j=142;j--;x.fillRect(i,j,1,k/14))for(a=b=0,k=18;k--&&b*b<4;)q=a*a-b*b+i/96-2+C(t*2),b=2*a*b+j/96-1+S(t*2),a=q

Jul 29 2016 7:32 AM UTC

}// 140/140

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u/iverjo

Cool!
u/iverjo

135 characters: for(c.width=i=256;i--;)for(j=142;j--;x.fillRect(i,j,1,k/14))for(a=b=0,k=18;k--&&b*b<4;a=q)q=a*a-b*b+i/96-2+C(t*2),b=2*a*b+j/96-1+S(t*2)

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sigveseb

function u(t) {

r=s=>Math.random()*s;for(m=i=128;i--;x.fillText('❄',r(2e3),r(2e3)))x.fillStyle=R(W=m+r(m),W,W*1.5);x.drawImage(c,S(t/13)*S(t/11),.5)

Jul 28 2016 3:28 AM UTC

}// 132/140

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u/iverjo

Beautiful! Looks like a misty storm of some sort
u/sigveseb

#rain

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iverjo

function u(t) {

w=c.height=1e3;n=99;for(i=n;i--;)s=n/(i*6+n),x.font=s*n+'px A',x.fillText(String.fromCharCode(10052),w+1100*S(s*w*2+t/59),w*(T(i)+s*t)%1200)

Jul 22 2016 3:48 PM UTC

}// 140/140

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u/donbright

oh this is excellent
u/donbright

you can golf this by using fillText('❄',....
u/iverjo

#snow

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3bl3gamer

function u(t) {

w=c.width=800;x.m=x.moveTo;x.l=x.lineTo;for(j=w;j-=20;)for(i=w;i-=20;)m=i+S(t*2+j),n=j+S(t*2+i),x.m(m-21,n),x.l(m,n),x.l(m,n+21);x.stroke()

Jul 22 2016 10:16 AM UTC

}// 139/140

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mmerchante

function u(t) {

W=A=B=c.width=3e2;x.fillRect(0,0,B,B);while(--W){A=B*A>>8;k=A%4;x.fillStyle=R(0,B/k);x.fillText(String.fromCharCode(t+B*W),W,(A+t*B/k)%B);}

Jul 22 2016 3:26 AM UTC

}// 139/140

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u/iverjo

#matrix

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sigveseb

function u(t) {

c.width=512;x.beginPath();x.translate(256,128);(a=b=>{b&&a(b-1);x.rotate(1+S(t/99));x.lineTo(C(t+b/90)*b/8+b/4,9+S(t)*99)})(512);x.stroke();

Jul 21 2016 10:40 PM UTC

}// 140/140

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u/iverjo

Cool! If you had to give this a name, what would it be?
u/sigveseb

Dweety McDweetface
u/iverjo

lol
u/iverjo

Swirly McSwirlface

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sigveseb

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=1/Z*4e3,W/2,W/4),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-6)})(36)

Jul 21 2016 8:08 PM UTC

}// 136/140

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u/iverjo

Nice remake of https://youtu.be/sQNcIKAIBF0?t=4m6s :D
u/iverjo

1/Z*4e3 can be replaced with 4e3/Z
u/sigveseb

Right you are! I thought I had already done that :3
u/Ameo

Holy s*** that's absolutly amazing.
u/sebbert

TiTAAAAAN

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icecuber

function u(t) {

v=t-9;m=t%.8-.4;r=m*m*12+3.7;r^4?r=r+.3|0:0;r=t<5.6?r*50:v<1?72:v<5.6?r*20:v<7.3?-67/C(t):x;x.fillRect(960-S(v)*r,(v<1?300:645)-C(v)*r,9,23)

May 19 2016 11:56 PM UTC

}// 140/140

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Show more comments…
u/lionleaf

Crazy impressive!
u/iverjo

Wicked!
u/lionleaf

How did you do that?!
u/stiaje

Outrageous!
u/iverjo

This is still like black magic to me. It needs to be explained in a blog post or something.
u/lionleaf

+1 for a blog post!
u/ocasta181

bump!
u/iverjo

For the sake of context: This dweet draws the logo of Hackerspace NTNU https://hackerspace-ntnu.no/
u/lionleaf

#logo
u/Lazy1337

#witchcraft

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iverjo

function u(t) {

X=960+290*C(t),Y=440+290*S(t),a=t*2,d=190;for(i=9;i--;)x.beginPath(),x.moveTo(X,Y),X-=d*S(a),Y-=d*C(a),x.lineTo(X,Y),d*=.5,x.stroke(),a+=.5

May 6 2016 10:43 PM UTC

}// 139/140

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chunnoo

function u(t) {

c.width=1920;for(i=-2;i<2;i+=.05)for(j=-4;j<4;j+=.05)1/(j*j+i*i)+1/((j-t%12+6)*(j-t%12+6)+i*i)>1?x.fillRect(j*240+960,i*240+540,12,12):0;

Apr 28 2016 1:35 PM UTC

}// 137/140

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u/Froff

This is probably my favorite of all the dweets on here
u/hamptonio

Very original, nice job.
u/FireFly

Sweet, metaballs!
u/iverjo

#metaballs
u/katkip

#cell
u/katkip

#physics

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