Dweets awesomed by u/baon

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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anotherkitten

function u(t) {

X=(j,k)=>(v=j*j-k*k)>t*t?k:X(v,k+.12)
for(j=214;j--;)for(k=120;k--;)x.fillStyle=R(0,M=X(j/159,1+k/200)*300-490,M/.7),x.fillRect(j*9,k*9,9,9)

Oct 25 2021 3:27 PM UTC

}// 140/140

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flowing fractal

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magna

remix of d/24198 by u/magna

function u(t) {

eval(unescape(escape`󬬽󣝡󭍨󛭲󨝮󩍯󫜊󩜽󬬨󩬽󬬨󨜽󨬽󜌩󚬲󛬲󝌩󚬴󛍘󟝥󛜲󛬸󛍙󟝦󛜱󛬱󜬊󩭯󬬨󪬽󞜹󞜻󨜪󨜫󨬪󨬼󟜴󙬦󪬭󛜻󬼽󞜹󞜯󭌩󦽡󛍢󧜽󦽡󚭡󛝢󚭢󚽘󛌲󚭡󚭢󚽙󧜊󮌮󩭩󫍬󤽴󮝬󩜽󤬨󪬩󛍸󛭦󪝬󫍒󩝣󭌨󩜪󝌸󜌬󩬪󝌸󜬬󚼫󬼬󬼩`.replace(/u../g,'')))

Oct 22 2021 7:27 PM UTC

}// 123/140

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#slowrender #mandelbrot

u/magna

Uncompressed: r=Math.random e=r(f=r(a=b=0)*2.24)*4,X=e-2.8,Y=f-1.12 for(j=999;a*a+b*b<=4&&j--;s=999/t)[a,b]=[a*a-b*b+X,2*a*b+Y] x.fillStyle=R(j),x.fillRect(e*480,f*482,++s,s)
u/magna

Very shitty and slow :D
u/andrea270872

I can feel the struggle. Very cool.

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Joachim

function u(t) {

eval(unescape(escape`󭽩󭍨󚍺󟝣󛭷󪝤󭍨󟜱󞜲󜌬󮌩󩭩󫍬󤭥󨽴󚌰󛌰󛍺󛍺󚜬󭬽󫌽󟭦󪝬󫍓󭍹󫍥󟝬󛍶󨌣󩭤󜝠󛍦󪝬󫍒󩝣󭌨󬌽󜼰󜌪󥌨󭌩󚭓󚍴󚜫󝬰󜌬󜬵󜌬󩼽󝜰󜌬󩼩󛍶󚍒󚌩󚜬󨝲󨼨󬌫󩼬󜬵󜌬󜜵󜌬󜌬󣝡󭍨󛭐󢜩󛍦󪝬󫌨󚜬󩭯󫭴󟜢󨭯󫍤󘌳󪝮󘍡󬭩󨝬󘬬󩭩󫍬󥍥󮍴󚌢󢭓󘬬󬌫󜜳󜌬󝼱󜌩`.replace(/u../g,'')))

Oct 15 2021 3:11 PM UTC

}// 140/140

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Check out https://www.js-bytebase.com

u/Joachim

... 2k coding challenge
u/danny@hille.dk

It's broken, you get a 504 when you try to save
u/Joachim

can you be more specific?

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pavel

function u(t) {

c.width|=f=(X,Y,r)=>r>1&&x.moveTo(X+r,Y)+x.arc(X,Y,r,0,7)+f(X+r*C(a=(S(b=5*t)-b)/4),Y,r/2)+f(X,Y+r*S(a),r/2)
f(960,540,270)
x.fill`evenodd`

Oct 13 2021 9:44 PM UTC

}// 139/140

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Some nice math for the 270 initial radius: The half-height is 540, this must equal r+r/2+r/4+r/8+...=r(1+1/2+1/4+1/8+...). Think about the bit in the brackets in terms of pizzas. You have a whole pizza, plus half a pizza, plus a quarter (half the remaining half), plus an eighth (half the remaining), etc. You have two pizzas! So 540=r*2.

u/pavel

Remix of d/11587. I remixed my other remix but that one was boring so I deleted it.
u/ciaccodavide

nice!
u/cantelope

i think about everything in terms of pizzas

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pavel

remix of d/24072 by u/BackendForth

function u(t) {

for(i=c.width|=0;i-=8;)x.arc(X=960-99*S(t+=.03),540+i,200+i/8,2,8)
x.fill()
h=21*S(t+C(t))
for(j=2;j--;)x.clearRect(X-50+99*j,529-h,11,2*h)

Oct 11 2021 10:31 PM UTC

}// 139/140

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u/BackendForth

Nice! The blinking makes it much more life-like . . . unlife-like?

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pavel

remix of d/24056 by u/KilledByAPixel

function u(t) {

for(i=u=~u*7&511;w=i--/4;)x.fillRect((t||S(i))*2e3-u*T%w,T=640+(i&5?i-u:u-i),t?w:u,t?2:i/u)

Oct 11 2021 5:55 PM UTC

}// 91/140

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u/pavel

for(i=u=~u*697&475;w=i--/4;)x.fillRect((t||S(i))*2e3-u*T%w,T=640+(i&5?i-u:u-i),t?w:u,t?2:i/u) has the parabola shape but is 92 and a little too symmetric.
u/pavel

Err, I meant for(i=u=~u*81&493;w=i--/4;)x.fillRect((t||S(i))*3e3-u*T%w,T=640+(i&5?i-u:u-i),t?w:u,t?2:i/u)

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anotherkitten

function u(t) {

for(j=80;j--;)for(i=0,k=0;i<59;i++)
x.fillStyle=`hsl(${-i},80%,${26+i*2}%)`,x.fillRect(k,j*14,99,40),k+=35+9*S(i*(1+S(t/-5)/2)+j/12+t)**2*7

Oct 11 2021 2:55 AM UTC

}// 139/140

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waves of rose

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rodrigo.siqueira

remix of d/23925 by u/rodrigo.siqueira

function u(t) {

for(i=k=680;--i;x.fillRect(k-i*Y,k-v*i,30*q*X*v,Y*i*v))f=i*t,X=f*f%3-1,Y=X*f%4-2,x.fillStyle=R(q=i*X*X,q*=X*X,q*=t*Y*q/i/X,i/q/q),v=.5**t/t

Sep 28 2021 2:28 AM UTC

}// 139/140

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Autumn sunset #landscape

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KilledByAPixel

remix of d/23876 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪍼󟝳󟝧󟝪󟜰󞼫󚽪󟌸󞼩󩭯󬬨󭼽󪜽󝍥󜼬󬜽󪬭󜬬󮌮󩭩󫍬󤽴󮝬󩜽󤬨󭬽󬜿󞜹󛝪󚬱󝜺󭼬󭬬󭬩󛍤󟝪󚬹󞜫󭌪󜬰󚭱󚬪󜭼󜌻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚍩󚭪󛍱󟽪󟬱󟼲󝜰󚽧󚬲󚽪󚭪󚬱󝬺󜌺󬬪󜜵󛍪󛍱󟽷󞬲󚜩󩼫󟝳󟜨󬬽󚼫󩌪󚬱󛬳󚬱󩜹󙜴󜌩󟌴󟽲󛜲󞭳󛝧󛼲󩜳`.replace(/u../g,'')))

Sep 20 2021 2:50 AM UTC

}// 139/140

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Parallax Mountains ⛰️

Show more comments…
u/KilledByAPixel

These are non-repeating mountain ranges, using a similar formula used in my #JS13k game Space Huggers
u/rep_movsd

#parallax #landscape
u/rodrigo.siqueira

The first game where I saw this effect was in Moon Patrol, I liked it a lot, it was great and also had a great music. I think it would not be difficult to recreate Moon Patrol from this Dweet.
u/andrea270872

moon patrol ate so many of my coins!! :D
u/tomxor

Pretty sure I first saw the effect in StarRay (Atari ST), I think I enjoyed the music more than the gameplay, no coins though :P
u/vain

Very cool and smooth paralax landscape

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Joachim

function u(t) {

eval( unescape(escape`󮬽󨼮󭽩󩍴󪌽󜼰󜌊󫽮󫝯󭝳󩝭󫽶󩜽󩜽󟭘󟝥󛭸󒭸󛭧󫍯󨭡󫍁󫍰󪍡󟜮󝼊󩭯󬬨󪜽󭼽󞜹󞜻󪜭󛜻󚝸󦽦󟜧󩭩󫍬󤭥󨽴󙽝󚍩󚬹󛜹󛝘󛼲󛌱󝼰󛌹󛍡󟜭󜼰󛜴󜌥󤼨󪜩󚬴󜌩󛌊󮍛󩭝󚍩󚬹󛜹󛝘󛌱󝼰󛌹󛍡󚼱󝜩󒭦󫽲󚍩󟝷󞽩󛜭󞼩󮍛󩭝󚍩󛝘󛽃󚍓󚍺󚼫󚜩󛍴󙝔󚍩󚜪󞜹󛌱󛌱󚜻`.replace(/u../g,'')))

Sep 19 2021 8:03 AM UTC

}// 140/140

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Hover mouse over iframe #interactive

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