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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mxfh

remix of d/849 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/2;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+1/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 22 2017 1:25 PM UTC

}// 135/140

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u/chrishaff

Old school cool!
u/ninerdelta

wow this is awesome
u/donbright

lovely
u/sfz

how in the
u/Drum

I've been clickcing 'awesome' on quite a few examples here, but this one is AWESOME!
u/Kalanchoe

Wow!
u/Brutal

Higher math :)
u/robvoodoo

If only you could fly the camera around!
u/Lazy1337

#d3

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c64skate

function u(t) {

c.width=320;for(a=i=99;i--;x.fillText(0,160+(d*f+k*g)/e,99+(j*f+a*g)/e))f=C((a=-a)+t),e=3+((d=(j=i&2?a:-a)*(g=C(t))-a*f)*g-(k=i&4?a:-a)*f)/a

Feb 22 2017 12:51 PM UTC

}// 140/140

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u/ozayturay

Cool. :)
u/endo

Nice!
u/ssg

no platform is complete without a rotating cube :)
u/Delimawi

320x200 himm familiar ;)
u/donbright

glorious
u/donbright

glorious
u/lazri

donuts
u/iverjo

#cube

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nilstastic

function u(t) {

c.width=1920;for(i=0;i<200;i++){var y=i*8-100;var xx=900+C(t*5)*200 + C(i+t*2)*400;x.fillRect(xx,y+C(t*5)*100,20,20);}

Feb 22 2017 9:36 AM UTC

}// 118/140

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u/J2D28U

Woah! It can go both ways depending on which way you concentrate!

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Kalanchoe

function u(t) {

r=Math.random
w=c.width
c.onmousedown=()=>c.width=1920+t
x.fillStyle='#4f5'
for(i=9/(t-w+1921);i-->1;)x.fillRect(r()*w,(y=r())*w,50*y,300*y)

Feb 22 2017 9:25 AM UTC

}// 140/140

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Click to reset.

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Kalanchoe

function u(t) {

//draw
r=.2958
s=(v)=>()=>{x.beginPath();c.onmousemove=v}
c.onmousedown=s((e)=>x.lineTo(e.clientX/r,e.clientY/r),x.stroke())
c.onmouseup=s()

Feb 22 2017 8:38 AM UTC

}// 140/140

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Click to draw.

u/lionleaf

Oh that's neat! Not enough interactive dweets out there

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vez

function u(t) {

d=f=>{for(X=0;X<c.width;X++)x.fillRect(X,f(X),1,1)};
x.fillStyle=R(S(t+.3)*95+150,55,120,.3);
d(X=>S(t+X/(200))*(S(t+10)*285)+460);

Feb 22 2017 6:38 AM UTC

}// 131/140

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the function d simply draws a function f(x)=y for you :)

u/rjro

reminds me of the #xmb background

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recursive

remix of d/778 by u/recursive

function u(t) {

for(c.width|=d=0;d<256;d+=.1)x.lineTo(a=7*d*C(d*1.1+t)+960,b=7*d*S(d)+540),x.lineWidth=(256-d)**2>>10,x.stroke(),x.beginPath(),x.moveTo(a,b)

Feb 22 2017 6:07 AM UTC

}// 140/140

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fff_fact

function u(t) {

with(x)s=S(t),r=520,strokeStyle=R(96*(1+s),1,1,1),beginPath(),moveTo(960+r*s,r+r*C(t)),lineTo(960+r*S(s+t),r+r*C(s)+t),closePath(),stroke()

Feb 22 2017 5:10 AM UTC

}// 140/140

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u/donbright

nice
u/chrishaff

U B ded

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donbright

remix of d/479 by u/lionleaf

function u(t) {

c.width=256;for(i=128;i--;)for(j=128;j--;){r=i*i-j*j;g=2*i*j;b=i*i+j*j;x.fillStyle=R(Math.abs(t*r)%256,0,0);x.fillRect(64+i,8+j,1,1)}

Feb 22 2017 4:06 AM UTC

}// 133/140

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Circles and Squares style pseudo fractal inspired by "red quadrance" from Wildberger's chromogeometry (x*x-y*y)

u/chrishaff

moire ole

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mvv

function u(t) {

c.width=1920;for(i=-20;i<20;i++){x.fillRect(i*100+S(t)*100,Math.random()*900,100,3500)}

Feb 22 2017 3:32 AM UTC

}// 87/140

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