Dweets awesomed by u/BackendForth

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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taupelink

remix of d/15167 by u/taupelink

function u(t) {

for(i=1e4,d=e=0;i--;)x.fillRect(960+(q=d*3e3)*S(p=e*6.283),135+q*C(p),1,1),d+=(((r=Math.random()*4)&1)-d)*(l=.6+S(i)**2/5),e+=((r&2)/2-e)*l

Jul 28 2019 3:04 AM UTC

}// 139/140

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Funny, if you replace the polar coordinates with rectangular coordinates 1920*d,1080*e, it doesn't look anthropomorphic at all

u/rep_movsd

The elder god of pixels
u/katkip

THIS IS KOROSENSEI!
u/taupelink

d/15168

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pavel

function u(t) {

for(i=c.width|=0;r=S(k=--i>>6)**2;x[i%64?'fillRect':'clearRect'](7-k/4,0,r,r))x.setTransform(99,0,0,42,960,32*k+(i%64*r||3)),x.rotate(3*t+k)

Jun 7 2019 6:27 AM UTC

}// 140/140

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#box #tornado #d3

u/aleamb

amazing!
u/donbright

how the....
u/KilledByAPixel

❒
u/vain

hard to believe... top!

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pavel

remix of d/10076 by u/yonatan

function u(t) {

t?X*X+Y*Y>2.4e5&&(v=C(t*t)/42-.07,U=v*X,V=v*Y):U=V=Y=X=3
X+=U;Y+=++V
x.arc(w=960,h=540,h,0,c.width|=0);x.arc(w+X,h+Y,40,0,7)
x.fill`evenodd`

Jun 2 2019 12:27 AM UTC

}// 140/140

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#physics #bounce

u/pavel

The velocity of the bounce changes on every hit, otherwise the ball would settle on a simple pattern

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pavel

remix of d/13487 by u/KilledByAPixel

function u(t) {

for(i=t?c.width|=d=_=>u[j=q&-64|p>>6]=-!u[j]|1:(p=q=540,r=7,s=4);i--;)u[i]||x.fillRect(i?i%64*64:p+=r*=d(p+=r),i?i:q+=s*=d(q+=s),z=i?64:9,z)

Apr 27 2019 4:26 AM UTC

}// 140/140

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#breakout #tribute

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u/pavel

Had to make some visual sacrifices to get this #uncompressed
u/pavel

I discovered p+=r*=d(p+=r);q+=s*=d(q+=s) as part of messing around with this. Why does it work?
u/pavel

:)
u/KilledByAPixel

Oh wow, nice! That's the code that updates the position, velocity and applies collision for x and y. It needs to call the d function to check its colliding and also set the block to 1 if it does. It needs to check x and y separately so it knows which side to bounce off
u/pavel

Notice how d only takes one argument, and it ignores it.
u/KilledByAPixel

I see what you did there. So many great tricks in this one.
u/pavel

p+=r*=d(p+=r) the inner p+=r increments p and d ends runs with that value, however the outer p+= caches the old value of p so when d resolves the inner p+=r is silently ignored!
u/pavel

#physics

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rodrigo.siqueira

remix of d/12369 by u/ETHproductions

function u(t) {

c.width&=q=-6;for(x.translate(960,540);q++;x.rotate(20.106))for(i=p=99;p+i--;p*=-1){x.fillRect(C(i/2)*C(i/62)*p,S(t)*99+i*S(t/2)*4,6,4)}

Feb 16 2019 3:14 PM UTC

}// 136/140

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Star mandala

u/joeytwiddle

Pretty! #flower

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joeytwiddle

remix of d/12000 by u/yokljo

function u(t) {

for(c.width|=j=20;j--;)for(g=j*120,i=99;i--;)x.fillRect(i?g+i/30*S(1e3/i-t*8+j*j*400)*i/2:g,i?i*5+600:0,120+60*S(j*j*(t|1)),i?5:600)

Jan 31 2019 6:22 AM UTC

}// 132/140

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A little remix of yokljo's city river

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u/katkip

Huh nice
u/joeytwiddle

Scrolling instead of switching: for(c.width|=j=15+t|0;j-->t;)for(g=(j-t)*180,i=99;i--;)x.fillRect(i?g+i*S(1e3/i-t*8+j**3):g,600+!!i*i*5,-99-80*S(j*j),i?3:-600)
u/username

What is this supposed to be? I only see black squiggly lines..
u/joeytwiddle

I think it's supposed to be buildings reflect in water. for(c.width|=j=20+t|0;j-->t;)for(g=(j-t)*120,i=W=99;i--;)x.fillRect(i?g+i*i/70*S(1e3/i-t*8+j**3):g,500+!!i*i*4,-W-80*S(j*j),i?3:-300-W*S(j))
u/donbright

oh my god
u/joeytwiddle

Please give u/yokljo an upvote. I only tweaked their idea! #water #waves
u/Tekmap

👏👏👏
u/vain

cool fx

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

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u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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joeytwiddle

remix of d/11968 by u/joeytwiddle

function u(t) {

c.width|=0;o=t*7%15.7-22/7;j=o>0;w=(99-j*80-j*o*1.6)*S(!j*o+j*o*4);x.ellipse(920,850-j*600*S(o/4)-w,200-w,200+w,0,0,7);x.fill()

Jan 27 2019 5:54 AM UTC

}// 127/140

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New_Core's bouncing ball + squash = jumping jack

u/katkip

Nice
u/katkip

#physics #jelly
u/DataMeta

Delightful!
u/joeytwiddle

Change o*4 to o*3 for a slower wobble

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katkip

remix of d/11361 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=40;i--;)for(j=40;j--;)x.beginPath(),x.ellipse(i*50,j*26,26,0,C(i)*S(j)*T(t),0,7),x.stroke();

Dec 9 2018 12:51 PM UTC

}// 123/140

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katkip

remix of d/11305 by u/katkip

function u(t) {

t||x.translate(960,540);x.rotate(1.57);x.fillRect(0,500,5,20),x.fillStyle=R(128+T(t),128+C(t)*99,128+S(t*3)*99);x.drawImage(c,0,0,2e3,1e3)

Dec 5 2018 3:04 PM UTC

}// 138/140

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Looking at this saved me from suicide

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u/firegodjr

Insanely cool
u/magna

Wow! This is rich. #keepsongiving And I also hope you're feeling OK (re: the suicide comment, that should never be overlooked.)
u/katkip

I am pretty retarded, sorry :'}
u/metamero

@magna thanks for your precise words!!
u/metamero

an @katkip I'm your fan <3 <3
u/donbright

reach out if you need it, 1-800-273-TALK (8255)
u/joeytwiddle

#kaleidoscope
u/katkip

number #1 in top, 10 dec 2018, yay
u/katkip

(weekly)
u/13thptr

very good, especially in fullscreen
u/KilledByAPixel

beautiful
u/lars-erik

138 bytes doesn't get better than this! 🤯❤

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