Dweets awesomed by u/CocoMeister

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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CocoMeister

function u(t) {

for(i=0;i<1920;i++){
y=t*i*Math.random()
x.fillStyle="hsl("+y/3 +","+i+"%,50%)"
x.fillRect(i*Math.random(),y,15,15)
}

Apr 24 2018 6:53 PM UTC

}// 117/140

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#rainbow

u/CocoMeister

#color

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CocoMeister

function u(t) {

c.onmousemove=e=>m=e
c.width=1920
for(i=7000;i>=0;i-=20){x.fillStyle="hsl("+C(t/3)*i*4+",90%,30%)"
x.fillRect(m.x-i/2+700,m.y-i/2+500,i,i)}

Apr 24 2018 6:39 PM UTC

}// 139/140

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#rainbow #mouse

u/lionleaf

#interactive

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yonatan

remix of d/2370 by u/magna

function u(t) {

c.width|=0;x.globalAlpha=.2;for(k=9;k--;)for(j=22;j--;)for(i=9;i--;)x.fillRect(540+i*99+T(m=t+k/540+i/150+j/2e3)**-9,400+j*9,50,9)

Apr 4 2018 10:06 PM UTC

}// 130/140

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k/540 // 9 iterations * 60 FPS

u/yonatan

#default
u/fujimotos

Oh, hey. It reminds me Power Point animations

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yonatan

remix of d/2370 by u/magna

function u(t) {

for(c.width|=i=9;i--;x.fill(new Path2D('M'+[530+i*99,540-a*99,b,q=a*r<0|0,50]+` 0v${200*a+b}${q^1} -50 0`)))a=C(m=i*t),b=`a1 ${r=S(m)} 0 0`

Mar 15 2018 7:01 AM UTC

}// 139/140

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cylinders

u/yonatan

Chrome only I guess...
u/magna

Smart!
u/yonatan

#default

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magna

remix of d/7283 by u/magna

function u(t) {

c.width|=0;for(j=n=10;--j;)for(i=100;i--;X=i%5+j*n+S(t)*30,Y=i/5|0,x.fillRect(400+X*n,400+Y*n+Y**(S(t/j)**n*2),n,n));

Mar 11 2018 7:18 AM UTC

}// 117/140

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snydej

function u(t) {

for(i=h=540;i--;f(h-h*S(i*R+t),9,70,1))f=(y,s,l,a)=>x.fillRect(i*4,y,s,s,x.fillStyle=`hsla(${i+t*l},80%,${l}%,${a}`)
f(0,3e3,0,R=S(t)/h+5/h)

Feb 22 2018 11:07 AM UTC

}// 140/140

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u/sigveseb

Solid stuff! u/snydej keeps rocking dwitter :)
u/M1T0

wow super nice!

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njm

remix of d/6381 by u/njm

function u(t) {

a=1e3;b=a;for(i=0;i<99;i++){r=Math.floor(Math.random()*3+1);a=(a+480*r)/2;if(r==2){b=(b+10)/2}else{b=(b+1070)/2};x.fillRect(a,b,1,1)}

Jan 23 2018 4:19 PM UTC

}// 133/140

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More efficient Sierpinski Triangle

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@no_identd

remix of d/4868 by u/Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=1.3324789*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Jan 17 2018 3:23 PM UTC

}// 139/140

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https://link.springer.com/article/10.1007/s0… Golden *morphic* angle for circles. 76.34541 if you want degrees. Both are the best *and* shortest single float approximation respectively. The traditional golden angle of 137.50777 degree (2.3999631 radian) has its uses, but this one has a few more tricks up its sleeve.

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PicturElements

function u(t) {

x.fillStyle="hsl("+t*40+",70%,50%)"
x.translate(960,540)
x.fillRect(-2e3,90,4e3,20)
x.fillRect(0,9,9,65)
x.rotate(.8)
x.translate(-960,-540)

Jan 14 2018 12:42 AM UTC

}// 140/140

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u/Qwitter

Love this, it is calming

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sigveseb

remix of d/5776 by u/ETHproductions

function u(t) {

t&&a<1920||(a=b=q=0,p=t*77%23+4,h+=20)
x.font='9em"'
x.fillText('🃏',a+=p,b)
b+=q++
b>930&q>0?q*=t%1/9-.9:0};{h=0

Jan 9 2018 12:05 AM UTC

}// 112/140

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Remixed on my phone so I didn't clean up unused variables etc. Just wanted to see how this looks with emojis :)

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