Dweets awesomed by u/nickd3000

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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nickd3000

function u(t) {

c.width+=0;h=100;m=50;r=v=>(v**7%99)-m; 
for(i=0;i<5e3;i++)l=(m-r(i+7)+S(t))%m,j=r(i)/l, k=r(i+9)/l,x.fillRect((10+j)*h,(5+k)*h,s=25/l,s);

Feb 3 2018 2:47 PM UTC

}// 138/140

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breathing space

u/jh

Nice! Did a remix with inverted colours: https://www.dwitter.net/d/6683

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nickd3000

function u(t) {

v=160,s=20;for(i=0;i<60*v;i++)l=(i%v),m=((i/v)|0), k=v*(1+S((C(l/15)/C(m/17))+(t*4))),x.fillStyle=R(n=k+m*2,n+m,n+k),x.fillRect(l*s,m*s,s,s)

Feb 1 2018 9:02 PM UTC

}// 140/140

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field work

u/41407

Awesome! I managed to shorten it down to 129 if you want to add something to it: v=160;s=20;for(i=60*v;i--;l=(i%v))m=(i/v)|0,k=1+S(C(l/15)/C(m/17)+t*4),x.fillStyle=R(n=k*v+m*2,n+m,n+k*v),x.fillRect(l*s,m*s,s,s)

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nickd3000

function u(t) {

v=160;for(i=0;i<60*v;i++)l=(i%v),m=((i/v)|0),
k=v*((((S(l/4)*C(m/4))+(t*3)|0))%5),x.fillStyle=R(k*2,k/4,7*m+v-k),x.fillRect(l*20,m*20,20,20)

Feb 1 2018 6:42 PM UTC

}// 140/140

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dot repeater

u/magna

So stylish!
u/sigveseb

Looks great!
u/iverjo

#dots

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Jezza

function u(t) {

if(!t)q=[];c.onmousemove=e=>q.unshift(e);c.width=window.innerWidth;for(i=0;i<50;i++)q[i]?x.fillRect(q[i].x+S(z=i+t*9)*5,q[i].y+C(z)*5,2,2):0

Jan 30 2018 3:15 AM UTC

}// 140/140

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Have a mouse around.

u/lionleaf

That's a fun one!
u/CtrlAltCuteness

Works on a Samsung Galaxy Note 4 with device's stylus and a web browser supporting the mouseover stuff.
u/joeytwiddle

#interactive

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koutsie

function u(t) {

for(m=+0xA1,a=1,i=c.width|=10;i--;x.fillRect(C(a+t/6)*400+960+a*C(i),S(a-C(t/1))*300+580+a*S(i),9,9),a&1?(a>>=1,a^=m):a>>=1);

Jan 28 2018 11:41 PM UTC

}// 125/140

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u/sigveseb

Rad
u/donbright

really love the way this works, with the binary operators.

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veubeke

remix of d/6564 by u/veubeke

function u(t) {

for(c.width|=$=384;$--;x.fill())for(x.beginPath(),i=6;i--;x.lineTo(C(_=i/3*Math.PI)*A*25+$%32*88,S(_)*A*25+$%2*50+($>>5)*99))A=1+S(t*t%$/20)

Jan 28 2018 9:11 AM UTC

}// 140/140

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u/sigveseb

niiiiice
u/Qwitter

Hexciting!
u/veubeke

:D
u/iverjo

Neat!

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function u(t) {

x.drawImage(c,i=0,s=8)
a=t?a:[...S+0].map(i=>i<'_')
b=[]
while(i<240){d=b[i]=a[i-1]^a[i+1]
x.fillStyle=R(!d<<8)
x.fillRect(i++*s,0,s,s)}a=b

Jan 27 2018 4:28 PM UTC

}// 139/140

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BackendForth

function u(t) {

c.width=1920
n=20
for(i=999;i--;x.fillRect(w*99,h*99-99,45,45)){r=(t+i)%999
w=r%n
h=r/n-r/n%1
if(w>n-1)h+=w-n+1,w=n-1
w=r%(2*n)>n?n-1-w:w
}

Jan 26 2018 4:08 PM UTC

}// 139/140

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u/Jezza

Elegant!
u/Purpzie

fitting for your username

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nickd3000

function u(t) {

m=20;f=p=>(10*S(p-i/m)^10*C(p-j/m))*20;for(i=0;i<96;i++)for(j=0;j<60;j++){c=f(t)+f(-t/2),x.fillStyle=R(9-c,c/2,c),x.fillRect(i*m,j*m,m,m)};

Jan 25 2018 10:48 PM UTC

}// 139/140

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RUBY AND SAPPHIRE

u/donbright

ow my head
u/sigveseb

Dope stuff! Colors rock

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ipost

function u(t) {

c.width^=0;f=.01;for(i=628;i--;x.stroke())x.beginPath(),x.arc(960+860*S(t+i*f),540+440*C(t+i*f),60+45*S(20*S(t)*S(i*f)),0,6.28)

Jan 22 2018 10:38 PM UTC

}// 128/140

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u/aleamb

Wow!
u/Xen

very smooth
u/DirtyDan

Smart, using f to multiply i to gradually count up to 2 pi

dwitter.net | nickd3000 (2238)