Dweets awesomed by u/PiggyClone205

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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eskimofo

function u(t) {

if(t<5.5)for(i=-100;i<=100;i++){x.beginPath()
m=300*i+T(t/4)*200
x.moveTo(m,0)
x.quadraticCurveTo(300*i+S(t)*400,560,m,1080)
x.stroke()}

Dec 28 2017 10:14 PM UTC

}// 136/140

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ellisk1

function u(t) {

c.width|=0;a=50;x.fillRect(950,1e3*T(t+10),a,a);for(i=0;i<a;i++)x.fillRect(i*a,1100,a,-200+.1*S(t)*(i*(39-i)*S(a*Math.abs(i-19)+10*t)))

Dec 28 2017 4:25 PM UTC

}// 135/140

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u/Xen

cool idea
u/joeytwiddle

#water #drop #waves

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Xen

remix of d/4214 by u/lowpoly

function u(t) {

(s=>{for(;a<2e3;a+=s)for(b=0;b<=1e3;b+=s)x.fillRect(a,b,s*C(b+t),s*S(a+t),x.fillStyle=`hsla(${(a+b)*S(t)},50%,50%,.1)`)})(a=48+C(t))

Dec 28 2017 12:16 AM UTC

}// 132/140

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jonathan_b

remix of d/888 by u/jczimm

function u(t) {

c.width^=0;s=400;for(i=0;i<48;i++)for(j=1;j<9;)b=C(i),x.fillStyle=R(b/s,99,s/b,.5),x.fillRect(960+s*b*S(T(t/2)+j++/i*j*s),540+s*S(i),50,50)

Dec 27 2017 9:19 PM UTC

}// 139/140

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jamespwilliams

function u(t) {

t||(a=0);a+=C(t/10)%0.3;x.drawImage(c,S(a)*20+1,C(a)*20);x.fillRect(960,540,20,20);x.fillStyle=R(Math.random()*255,Math.random()*255,255)

Dec 27 2017 6:31 PM UTC

}// 137/140

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Xen

function u(t) {

t?x.drawImage(c,C(t),S(t*2)*6):c.width=99,x.fillText('Welcome To Dwitter',1,29),x.fillStyle=`hsl(${t*199},99%,50%)`

Dec 26 2017 9:13 PM UTC

}// 115/140

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u/lionleaf

Welcome to all the new people from /r/programmer, hackernews and twitter! :D
u/Xen

fresh blood lol! welcome to the jungle, take a look around ;-)
u/sigveseb

oh god the colors:P and welcome to all
u/j0bit

o.O what the heck is going on in this syntax?
u/iverjo

@j0bit: Search for "JS Template Literals" and "JS Ternary Operator" on the internet
u/j0bit

Cool, appreciate it.

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mmastrac

remix of d/3367 by u/Xen

function u(t) {

t?0:x.fillRect(0,0,w=1920,h=1080);for(i=16;i--;x.fillRect(Math.random()*w,10,3,4))x.fillStyle='#fff';x.drawImage(c,-2+S(t),4+C(t),w+9,h+20);

Oct 27 2017 4:04 AM UTC

}// 140/140

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mmastrac

function u(t) {

c.width|=32;for(p in d=Date(x.scale(n=16,n)))for(i in d)' {"^î§m}*ÿï'.charCodeAt(+d[n+p*1]+1)>>i&1&&x.fillText(["▏▕▁▔▏▕▁"[i]],p*n,i>3?n+9:n)

Oct 25 2017 1:59 PM UTC

}// 140/140

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u/sigveseb

very clever!
u/iverjo

#clock
u/katkip

woooow

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rybar

function u(t) {

for(i=2e3;i>-1;i--)x.fillStyle=R(255*C(i/5-t),255*S(i%8+t),255*C(i%8+t),1),x.fillRect(i%90*90,i/90*90,90,90)

Aug 9 2017 5:15 PM UTC

}// 108/140

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u/jick

I like this a lot.
u/kimber

Very nice
u/Cindya

Try different pallets good start

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jick

remix of d/2912 by u/p01

function u(t) {

r=t+20;
for(i=c.width|=0;i--;){
x.beginPath()
x.fillStyle=`hsl(${i*r},50%,50%)`
x.arc(i%98*19,i*(1-T(i/r)),20,0,6)
x.fill()
}

Jul 20 2017 4:28 PM UTC

}// 125/140

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