Dweets awesomed by u/Woodmouth

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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pavel

remix of d/13902 by u/KilledByAPixel

function u(t) {

for(c.width|=S*S<2e4|C*C+9*C>55?onclick=_=>v=-20:S=v=m=0,C=64-m++%98,S+=v++,i=3;i--;)x.fillRect(591+!!i*C*25,[S+491,0,720][i],s=i?360:98,s)

May 17 2019 4:24 AM UTC

}// 139/140

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Click to flap #interactive #game

Show more comments…
u/pavel

Should give you plenty of characters for an improved compressed version
u/KilledByAPixel

amazing
u/joeytwiddle

Fantastic!
u/username

well, it is not like Flappy Bird anymore. it is just two squares at the same position all the time instead of tubes at random heights
u/username

and I feel like it is constructed in a way that makes any improvements very hard
u/KilledByAPixel

it's a demake of a demake. some really good ideas though, i've already used them to chip off a few more bites from my version
u/pavel

#physics
u/IV

needs the airwolf theme tune :)
u/pavel

#flappybird

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Jezza

function u(t) {

for(i=9,j=.1,X=960,k=Y=540;k/=2,i--;j*=-3)X+=C(t*j)*k,Y+=S(t*j)*k,x.fillRect(X,Y,1,1)

Apr 29 2019 2:38 AM UTC

}// 85/140

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#epicycles #notstrictlyepicycles

u/vinca

Beautiful and minimal code.
u/artfarnaa

Agree, well done.
u/katkip

WTF! You published a #fractal #spirograph with 5 minutes before me! I was gonna create the exact same ideea. Wow

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pavel

remix of d/1112 by u/sigveseb

function u(t) {

for(let w=c.width=127,i=9086,a,b,n,B;a=i&w,b=i--/w;x.fillRect(a,b,1,1/(t+a/n&1^b/n)))n=b-20,B=(w*S(t*9+n/9)+(a-40)**2+n*n)/1e3,n*=B>1||C(B)

Mar 7 2019 8:31 PM UTC

}// 139/140

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#improved performance

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u/pavel

Original runs at 6fps on my machines this runs at 60fps. I lowered the resolution by a quarter (4x perf) and golfed 13 chars to let me declare all vars locally (2x perf).
u/tomxor

wow! this is a massive perf improvement, the original was impressive but I couldn't really see it realtime. Nice one :)
u/katkip

how
u/nender

Wow! This is amazing!
u/sigveseb

Nice!
u/f8f82804

#raytrace #d3 #pbr
u/Cloud

Cool!!!

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pavel

function u(t) {

for(w=c.width=1e3,i=99;r=10*i--;i?x.stroke():x.fill())x.beginPath(p=(1+t/2-r/w)%2),x.ellipse(480,270+20*S(p*40)/9**p+!i*w*(p-2),r,r/3,0,0,7)

Mar 6 2019 7:01 AM UTC

}// 140/140

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#water #drop

u/katkip

Looks good
u/aleamb

great!
u/mcdxn

damn!

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pavel

remix of d/12516 by u/pavel

function u(t) {

for(;t<9;)u[c[t]=t]=50*t++
for(c.width|=a=9;b=a--;u[b]-p<50&&(c[a]=c[b],c[b]=v))x.fillRect(960+(p=u[a]+=v=c[a]*=u[a]**2<8e5||-1),440,50,200)

Feb 26 2019 12:36 AM UTC

}// 140/140

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#default #physics #uncompressed

u/13thptr

cool
u/lionleaf

Amazing!
u/Ath0r

Very nice!
u/katkip

!!

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rodrigo.siqueira

remix of d/12312 by u/robbyg

function u(t) {

c.width|=B=(X,Y,A,L,h,v)=>L>7&&(x.lineTo(h=X+C(A)*L,v=Y-S(A)*L),B(h,v,A-t/8,L*.73),B(h,v,A+t/2,L*.73))
B(800,890,1,260)
x.stroke()

Feb 12 2019 10:36 PM UTC

}// 130/140

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Plants, thorns and dragon curves #fractal

u/katkip

Wow! Amazing
u/robbyg

I was hoping someone would come up with something better to do with that function. Awesome! :)

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pavel

function u(t) {

t?c.width|=0:(i=A=240,j=B=80,p=q=-9)
x[f='fillRect'](i+=p=i<7*A?p:-p,840,A,A)
x[f](j+=q=j>0?q:-q,1e3,B,B)
j>i-B&&(j=i-B,p+=s=(q-p)/5,q-=s*9)

Jan 24 2019 10:56 PM UTC

}// 140/140

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Perfect elastic collision #physics #simulation

Show more comments…
u/pavel

Big block is 9x the weight of the little block
u/katkip

This is impressive. Idea from 3blue1brown?
u/iverjo

Wow!
u/bekfast2390

This is like ping-pong!
u/joeytwiddle

Some context: https://www.youtube.com/watch?v=HEfHFsfGXjs 3Blue1Brown
u/katkip

hi, PI
u/Undefined

A fellow 3b1b fan, I see :D
u/joeytwiddle

#3b1b
u/ivylab

I always wait until the big one gets way up to the left side and it goes bam bam bam bam bam :)

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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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pavel

function u(t) {

for(c.width=480,x.rotate(X=Y=q=.785),r=6;r--;X+=f(0),Y+=f(2))R=1<<r,x.strokeRect(X+265-R,Y-74-R,2*R,2*R),f=n=>R*Math.atan(16*C(t+(n-r%2)*q))

Dec 23 2018 9:53 AM UTC

}// 140/140

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Squares #beesandbombs

u/katkip

So smooth!

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pavel

remix of d/11314 by u/pavel

function u(t) {

for(x.fillRect(j=11,0,2e3,2e3);k=20*--j;)for(i=241;i--;)x.clearRect(i*(8-j/6)+k,600-k-300/j*S(i*(2*j-1)/76.4)*S(j*t),s=12-j,s)

Dec 6 2018 8:47 AM UTC

}// 126/140

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Standing waves #beesandbombs

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