Dweets awesomed by u/sfz

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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recursive

remix of d/2281 by u/thespite

function u(t) {

w=c.width|=0
for(a=1920;a-=40;)
for(b=1500;b-=15;)x.fillRect(a,b+C(C(((a-C(t*1.3)*800-960)**2+(b-S(t)*200-540)**2)**.1-t*2)*6)*100-200,40,8)

Mar 26 2017 12:30 AM UTC

}// 140/140

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u/donbright

nice work

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sfz

function u(t) {

c.width=(w=99)*2
O=C(t)
P=S(t-4*O)
Q=C(t+3*P)
for(Z=w;Z--;)q=Z+t,m=S(q+Z%3),n=C(q+Z/3),X=P*O+Q*Q,x.fillRect(w+X*6+w*m,w+Q*4+w*n,L=4*C(q),L)

Mar 25 2017 9:34 PM UTC

}// 139/140

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u/donbright

lol it wobbles!!!

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New_Core

remix of d/506 by u/New_Core

function u(t) {

c.width=400;x.translate(200,114);x.rotate(t*.6);for(i=19;i--;)x.rotate(.3),x.fillText("DWITTER   ".split("")[0|i%10],0,50+30*C(t+i)+30)

Mar 25 2017 6:44 PM UTC

}// 135/140

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#text

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nonce

function u(t) {

with(x)font='950px o',lineWidth=30,strokeStyle=`hsl(${t*50%360},99%,50%)`,setLineDash([9,3e3]),lineDashOffset=t*120,strokeText('I❤U',9,880);

Mar 25 2017 5:45 PM UTC

}// 140/140

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u/tapgiles

In Chrome, the text is too large, and the heart never shows up. Pretty awesome idea, though.
u/recursive

It shows perfectly for me in Chrome on Windows.
u/nonce

I so wish I could fix the font here. Sadly it has to go with whatever default font you have. If someone could golf this down by 4 chars we could do font='950px Arial'
u/New_Core

with(x)font='25cm Arial',lineWidth=30,strokeStyle=hsl(${t*50},99%,50%),setLineDash([9,3e3]),lineDashOffset=t*120,strokeText('I❤U',9,880);
u/joeytwiddle

#text

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keithclark

function u(t) {

for(a=c.width^=0;d=C(--a+t)*S(b=a*1.2502),e=S(a+t)*S(b);x.fillRect(d*h+960,C(b)*h+540,i=h/40-5,i))h=900/(2-e)

Mar 25 2017 3:25 PM UTC

}// 109/140

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Show more comments…
u/recursive

Huge savings. I wonder what else could be added.
u/donbright

@recursive . ... https://www.dwitter.net/d/2306
u/keithclark

i'm trying to get rotation along 2 axes
u/keithclark

Try changing 1.2502 to different values for different patterns. For example: use 70.286 for death star
u/PeteAJ

A little confused by the for loop. The second statement just defines the variables d and e?
u/joeytwiddle

Here is an earlier version: https://www.dwitter.net/d/2278
u/joeytwiddle

#hiddengem
u/f8f82804

@PeteAJ I've used the same for trick before -- if either of a+t or b are zero, their sine is zero so the product is false-y, which terminates the loop

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TheTarquin

function u(t) {

with(Math)p=.2*t%PI*2,g=t*p/Math.random(),r=pow(abs(cos(g)/2)**8+abs(sin(g)/3)**4,-1/1),X=r*cos(p),Y=r*sin(p),x.fillRect(X+960,Y+540,9,9)

Mar 25 2017 9:16 AM UTC

}// 137/140

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Mystical random space donut. Based on the work of @New_Core

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Jenky

remix of d/2256 by u/sfz

function u(t) {

t=t%((r=Math.random)()*.6+.6)>.01||new Audio(`http://www.soundboardcity.com/sounds/fart-machine/fart${~~(r()*9)+1}.mp3`).play()

Mar 25 2017 1:00 AM UTC

}// 127/140

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Guys I'm very mature

u/donbright

Me too. We are all very grown up and serious here on Dwitter. Your insightful analysis of methane emissions will prove a great contribution to climate science.
u/joeytwiddle

Well this made me laugh :)

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z3vin

function u(t) {

r=(n)=>Math.random()*n;h=1080;w=1920;
for(i=0;i<1999;i++)x.fillRect(r(w),h/2*C(t)+h/2,3,6)
for(i=0;i<99;i++)x.clearRect(r(w),r(h),r(3),r(h))

Mar 25 2017 12:16 AM UTC

}// 140/140

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z3vin

function u(t) {

r=(n)=>Math.random()*n;h=w=1920;c.style.transform=`scale(${r(.1)+1})`
for(i=0;i<9;i++)x.fillRect(0,r(h),w,3);x.clearRect(r(w),r(h),r(9),h)

Mar 24 2017 11:59 PM UTC

}// 138/140

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u/donbright

weird!
u/donbright

in a good way
u/z3vin

@donbright ha thanks!
u/katkip

#

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thespite

remix of d/2280 by u/thespite

function u(t) {

w=1920,h=1080,c.width=w,d=.5;for(a=-d;a<d;a+=.02)for(b=-d;b<d;b+=.02){x.fillRect((d+a)*w,(d+b+.15*C(10*Math.sqrt(a*a+b*b)-2*t))*h,40,10)}

Mar 23 2017 6:43 PM UTC

}// 137/140

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