Dweets awesomed by u/magna

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: #Food

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BackendForth

function u(t) {

c.width|=0
p=4*S(t)
for(i=-9;i<9;i+=.2)for(j=-9;j<9;j+=.2)r=(i*i+j*j)**(p/2),w=Math.atan2(j,i)*p,x.fillRect(960+r*C(w)*99,540+r*S(w)*99,6,6)

Feb 5 2018 2:55 AM UTC

}// 140/140

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u/joeytwiddle

Folding space

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DirtyDan

remix of d/6704 by u/DirtyDan

function u(t) {

for(i=1;i<360;i++)x.fillStyle=`hsl(${i/2+90*t},99%,50%)`,R=532*S(t+i/360),x.fillRect(960+R*C(t+i)-4,540+R*S(t+i)-4,8,8)

Feb 5 2018 2:39 AM UTC

}// 119/140

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Changed the flow and made the colors cycle

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DirtyDan

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*T(t+i/9)*300,400+100+S(t+8/9)*300,50,200) // draw 50x200 rects

Feb 5 2018 2:02 AM UTC

}// 138/140

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u/katkip

#default

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jonathan_b

remix of d/6285 by u/jonathan_b

function u(t) {

with(x)for(s=i=c.width|=0;i-=5;beginPath(fill()))r=T(i*9+S(t+i*2))*420,arc(s/2+r*2,500+r*T(i),q=i/7,0,7),fillStyle=`hsl(${r/3},70%,${q/3}%)`

Feb 5 2018 12:21 AM UTC

}// 140/140

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u/magna

Sweet!
u/DeathBoy

Daaaaaamn, that's beautiful
u/jonathan_b

sometimes you find the best stuff when you
u/jonathan_b

are looking for something else entirely
u/codeslaw

magnificent

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21medals

function u(t) {

for(i=99;i--;x.fillRect(o=-i*9,o,s=i*18,s))x.resetTransform(),x.translate(960,a=540),x.rotate(i/2*t/5),x.fillStyle=R(S(i)*a,C(i)*a,S(t+i)*a)

Feb 4 2018 10:56 PM UTC

}// 140/140

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u/magna

Awesome!
u/joeytwiddle

That is one powerful optical illusion. Looks like it's spinning!
u/iverjo

LOL Joey :)
u/DeathBoy

I CAN SEE THROUGH TIME
u/joeytwiddle

#kaleidoscope #spiral #colorshock

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Apex

function u(t) {

for(c.width|=i=0;i<4;C=S(8*-t+i)*80,T=S(t)*64,x.fillStyle=R(0,T*2,T),x.fillRect(785+i*100,C<0.1?440:440-C,50,C<0.1?200:200+C*2),i++);//hi :D

Feb 4 2018 9:27 PM UTC

}// 140/140

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u/Apex

Inspired by Google's loading bars animation. It could be golfed further but I was just looking for enough room to put a nice comment
u/Apex

(It changes color, just watch it)

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AnnanFay

remix of d/6716 by u/silver_bear

function u(t) {

c.width|=i=0,y=S(t*13),w=500
with(x)for(fillStyle='#FE0',moveTo(w,w),arc(w,w,w/2,y*.8,6.3-y);i<9;fill())fillRect(2*w+w*i+++t*-w%w,w,w/9,w/9)

Feb 4 2018 6:11 PM UTC

}// 140/140

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6.3 is pretty much 2*PI. Putting fill() where it is causes it to fill the pacman in 9 times but saves a byte. Using with saves another 1-2 bytes.

Show more comments…
u/AnnanFay

#FFEE00 is also supposedly the official Pacman colour.
u/silver_bear

Wow, you're quite a bit more advanced than me. Very nice! :)
u/lionleaf

Cool! Similar to one of the really old dweets by u/iverjo : d/312 . :)
u/21medals

you can save 2 bytes by moving "w=500" to the moveTo()
u/AnnanFay

You can also replace 2*w+w*i+++t*-w%w with 2*w+w*i++-t*w%w for 1 byte, you can save 2 bytes by adding i=2 and w*i++-t*w%w which puts us at 135 bytes
u/AnnanFay

One thing I'd like to fix is the rate which pac-man bites down at. It would be nice if it synchronised with the squares.
u/AnnanFay

Improved: https://www.dwitter.net/d/6738

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Paisley

remix of d/6713 by u/Paisley

function u(t) {

c.width|=0
x.font='220px m'
x.fillText("😖,😄,😃,😅".split(",")[Math.floor(t%2*2)],Math.abs(100*(t*6 % 32-16)),400+600*Math.pow(t%2-1,2))

Feb 4 2018 2:14 PM UTC

}// 133/140

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silver_bear

function u(t) {

c.width=1920
j=50;
for(i=0;i<j*2;i++){
x.fillStyle=R(255*S(i-t),255*C(i-t),100,C(t+i)+.5)
x.fillRect(19*i,250*S(t+i)+550,j/2,j/2)
}

Feb 4 2018 1:36 PM UTC

}// 131/140

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nickd3000

function u(t) {

for(i=0;i<32;i++)g=10*t*(i%3),x.fillStyle='hsl('+g+',99%,55%)',x.fillRect(80*i,5,80,20);x.drawImage(c,-5,5,1930-S(t*4)*5,1080+5);

Feb 4 2018 1:00 PM UTC

}// 129/140

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stripe machine

u/vberlier

that's really clever
u/joeytwiddle

#warping

dwitter.net | magna (131923)