Dweets awesomed by u/CalSch

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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Current theme challenge: #ScaryMovies

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@noel

function u(t) {

eval(unescape(escape`󩭯󬬨󩼽󮌮󨽲󩝡󭍥󤭡󩍩󨝬󡽲󨝤󪝥󫭴󚍤󟜹󝜰󛍢󟜵󝌰󛌰󛍤󛍢󛍥󟜴󜬰󚜬󩽛󨜽󘭡󩍤󠽯󫍯󬭓󭍯󬌢󧜨󜌬󘬣󝍦󩬢󚜬󚍸󛭦󪝬󫍓󭍹󫍥󟝧󚝛󨝝󚌱󛌢󘼰󜌵󘬩󛍸󛭦󪝬󫍒󩝣󭌨󩜬󜌬󪌽󜜰󞌰󛍨󚜬󪜽󜽥󜼻󪜭󛜻󚝸󛭣󫍥󨝲󤭥󨽴󚍤󚽓󚍩󚽴󚜪󤼨󪜪󪜩󚭥󛍢󚽥󚭃󚍩󚭩󚜬󝜬󝜩`.replace(/u../g,'')))

Jun 4 2023 9:02 PM UTC

}// 140/140

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The Cristal Ball.

u/@noel

My dweet No. 3 Thanks to u/danny@hille.dk for actually teaching me how to start golfing!

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@noel

function u(t) {

eval(unescape(escape`󩭯󬬨󮌮󨽬󩝡󬭒󩝣󭌨󜌬󜌬󜜹󜬰󛌱󜌸󜌩󛍪󟜭󜜻󪬼󚍷󟜲󝜵󚜻󪜫󚼩󩭯󬬨󮜽󜬪󪬫󚼯󭼭󜜬󪜽󛜱󞽩󟍷󞽩󚼫󚝫󟜲󚭩󛽷󛜱󛍤󟝍󨝴󪌮󬽱󬭴󚍫󚭫󚽹󚭹󚜬󨜽󣝡󭍨󛭡󭍡󫬲󚍹󛍫󚜬󮬽󭼪󠼨󨜩󛽤󚽴󚭷󧭷󚭓󚍡󚜯󩌫󭌪󭼬󮌮󩭩󫍬󤭥󨽴󚌴󜬰󚼴󚭩󛌴󚭪󛍮󟜨󮬦󭼩󛽷󚬴󛍮󚜻`.replace(/u../g,'')))

Jun 3 2023 1:02 PM UTC

}// 140/140

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Remix of d/27866 Stereographic Projection

Show more comments…
u/@noel

I don't know why I couldn't post this in the 'change code box'. Maybe compressed code isn't allowed there?
u/@noel

I changed the code following a suggestion by u/KilledByAPixel who indicated that using fillStyle in a big loop slows the code a lot. And indeed, the framerate doubled. Though I had to use clearRect now. Maybe there is another solution for that? for(x.clearRect(0,0,1920,1080),j=-1;j<(w=255);i++)for(y=2*j++/w-1,i=-1;i<w;i++)k=2*i/w-1,d=Math.sqrt(k*k+y*y),a=Math.atan2(y,k),z=w*C(a)/d+t*w^w*S(a)/d+t*w,x.fillRect(420+4*i,4*j,n=(z&w)/w*4,n);
u/danny@hille.dk

Setting the width or height of the canvas will reset the canvas. c.width+=0 will do the trick, and besides being a great golfing trick, it is also faster than clearRect
u/danny@hille.dk

Math.sqrt(x) can be golfed to x**.5 '**' is an Exponentiation assignment operator: https://developer.mozilla.org/en-US/docs/Web…
u/danny@hille.dk

What you do here Math.sqrt(k*k+y*y) is how you calculate the length of the hypotunusis. javascript math class got you covered with: Math.hypot(x,y)
u/danny@hille.dk

Keep up the good work!
u/@noel

u/danny@hille.dk Thank you so much!
u/@noel

Dear @danny@hille.dk Since you answered so kindly and are obviously skilled in 'golfing' I dare to ask you one more question. I am struggeling to dweet to minify my next dweet. The original code would be: for(h=1080,b=540,c=420,d=950,g=x.createRadialGradient(d,b,0,d,b,c),g[a="addColorStop"](0,"#4BB"),g[a](1,"#005"),x.fillStyle=g,x.fillRect(c,0,h,h),i=6e3;i--;)k=d+S(i+t)*S(i*i)*c,y=b+c*C(i*i),x.fillText("◻️",k,y) But with 210 characters far to big, even compressed (149). So I tried to create the gradient drawing circles like; for(d=950,b=540,s=0,c=420,c.width+=0,i=40;i--;)x.beginPath(s+=2),x.arc(960,540,40*i,0,7),x.fillStyle=hsl(231,${s}%,${s/2}%),x.fill();for(i=6e3;i--;)k=d+S(i+t)*S(i*i)*c,y=b+c*C(i*i),x.fillText("◻️",k,y) But that only saved 7 characters and compressed still has 147. Is there still something possible?
u/danny@hille.dk

Hi @Noel, When making a Dweet, think of best practice and do the opposite: only use variables when you need them, and wait until you need to use them the first time to initialize them. 194b, but I'm sure it can be golfed even further: for(g=x.createRadialGradient(d=950,b=540,0,d,b,e=420),g[a="addColorStop"](0,"#4BB"),(x.fillStyle=g)[a](1,"#005"),x.fillRect(e,0,h=1080,h),i=3e3;i--;)x.fillText("◻️",d+S(i+t)*S(i*i)*e,b+e*C(i*i))
u/danny@hille.dk

Cool effect!
u/danny@hille.dk

eval(unescape(escape\`󩭯󬬨󩼽󮌮󨽲󩝡󭍥󤭡󩍩󨝬󡽲󨝤󪝥󫭴󚍤󟜹󝜰󛍢󟜵󝌰󛌰󛍤󛍢󛍥󟜴󜬰󚜬󩽛󨜽󘭡󩍤󠽯󫍯󬭓󭍯󬌢󧜨󜌬󘬣󝍦󩬢󚜬󚍸󛭦󪝬󫍓󭍹󫍥󟝧󚝛󨝝󚌱󛌢󘼰󜌵󘬩󛍸󛭦󪝬󫍒󩝣󭌨󩜬󜌬󪌽󜜰󞌰󛍨󚜬󪜽󜽥󜼻󪜭󛜻󚝸󛭣󫍥󨝲󤭥󨽴󚍤󚽓󚍩󚽴󚜪󤼨󪜪󪜩󚭥󛍢󚽥󚭃󚍩󚭩󚜬󝜬󝜩\`.replace(/u../g,'')))
u/danny@hille.dk

remove \

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KilledByAPixel

remix of d/26625 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󨼮󬽴󮝬󩜮󩭩󫍴󩝲󟜧󬽥󬍩󨜨󚝩󫭶󩝲󭌨󙼊󮬽󞌰󜌫󭌪󜽥󜼊󩭯󬬨󪜽󝝥󜼻󭌼󝌦󙭩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󪜬󮬾󭝛󪝝󟽺󞭵󦽩󧜬󛬲󛍺󚜩󩌽󪜪󚬮󝜪󜬰󛍺󚼽󠼨󪜪󪜪󮬩󚬲󛍴󟽸󛭦󪝬󫍒󩝣󭌨󦬽󜜳󜌰󚽤󚭓󚍡󟝩󚬪󜼫󭌯󝜰󚜬󦜽󝜰󜌫󩌪󠼨󨜩󛍓󚍩󚜯󝌬󦜼󭝛󦭼󜍝󚜺󭝛󪝝󟝺`.replace(/u../g,'')))

Jun 2 2023 4:26 AM UTC

}// 140/140

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Observatory 🔭

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rodrigo.siqueira

remix of d/27831 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=1e4;i--;x.clearRect(960+S(p=T(i**5))/(Z=(i/T(t)+i*i/(330+188*S(i+t)))/i/i),540+C(p)/Z,2,2))x.globalAlpha=.1

May 28 2023 11:28 PM UTC

}// 137/140

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#donut explosion

u/jdspugh

Very cool

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rodrigo.siqueira

remix of d/27826 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+C(p=T(i*i-t/9))/(Z=(i/S(t+i+p)+i*p*i/320)/i/i),540+S(p)/Z,K=3*S(i),K))x.globalAlpha=.1

May 25 2023 12:50 AM UTC

}// 140/140

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Galactic knot

u/deobfuscate

The universe gets pretty bored sometimes...
u/Joachim

Wow!!
u/joeytwiddle

There is a region of space they all avoid, except some of them occasionally don't!

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brad-ellert

function u(t) {

c=256
w=1920
h=1080
i=S(t)
j=S(t/2)
k=S(t/3)
x.beginPath()
x.bezierCurveTo(i*w,j*h,j*w,k*h,k*w,i*h)
x.strokeStyle=R(i*c,j*c,k*c)
x.stroke()

May 23 2023 1:23 PM UTC

}// 139/140

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Harmonic Resonance: A Sine Symphony

u/cantelope

chatGPT tho :(
u/brad-ellert

I find it pretty impressive to see what it can come up with given just a problem definition and constraints. Of course minor tweaks are required because it's not perfect, but it make something very coherent despite not actual ability to "see" as an LLM.

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rodrigo.siqueira

remix of d/27506 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=t/T(i**2))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.1

May 15 2023 8:34 PM UTC

}// 137/140

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Vortex of Energy

u/tomxor

Also Quake1 logo... for a while.
u/deobfuscate

Looks a lot like cooler as fire: x.fillStyle=R() for(x.fillRect(0,0,w=3e3,w),x.fillStyle=R(255,100),i=2e4;i--;x.fillRect(960+S(p=t/T(i**5))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.3
u/deobfuscate

(not golfed btw)
u/andrea270872

Wow!
u/jdspugh

Great!

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Xen

remix of d/27507 by u/deobfuscate

function u(t) {

x.fillRect(t*1e3%1e3,(t*1e3)%13e2,1E3,1E3,x.globalCompositeOperation='xor')

May 11 2023 12:57 AM UTC

}// 75/140

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golf n play

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Xen

remix of d/27498 by u/deobfuscate

function u(t) {

for(i=50;i--;x.globalCompositeOperation='xor')x.fillRect(S(i-t)*960+960,540,C(t-i)*50,T(t+i/9)*300)

May 9 2023 8:30 PM UTC

}// 99/140

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quick play

u/Xen

also loops
u/deobfuscate

Woah thats trippy

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Odog8

remix of d/27501 by u/Odog8

function u(t) {

a=t%1>.1?[...a.map((X,i)=>Q[x.fillRect(i,A,1,X)|a[i-1]|4*a[i+1]|2*a[i]]),0]:[A=1,Q=[...Array(c.width=99)].map(x=>.5>Math.random())];A++

May 9 2023 8:15 PM UTC

}// 135/140

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Missed an obvious golf

dwitter.net | CalSch (14017)