New #ball dweets

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: #Opposites

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PotatoImaginator

function u(t) {

c.width=w=480
c.style.background='#4af'
x.fillStyle=R(h=270)
x.beginPath
u=h*t
x.fill(x.arc(u%960<w?u%w:w-u%w,u%540<h?u%h:h-u%h,20,0,7))

Jun 24 2023 4:56 AM UTC

}// 136/140

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#uncompressed bouncing #ball

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danny@hille.dk

remix of d/24010 by u/danny@hille.dk

function u(t) {

c.width=w=218;for(m=3e4;m--;T=S(X/d-t*16)*C(Y/d))x.fillRect(i=m%w,j=m/w,T**.1,2),r=(X=i/w*4-2)*X+(Y=j/w*4-1.1)*Y,d=r>1?S(t*4%3)/5-.4:C(r)/9

Oct 17 2022 11:15 AM UTC

}// 139/140

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#uncompressed bouncy #ball remix

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magna

remix of d/24349 by u/pavel

function u(t) {

for(i=5e3;i--;x.fillRect(960+s*X,540+s*(i&1?Y:-Y),1,1))X=2*(60*t%15-7)+C(a=i/7),Y=(4*t<<1)+S(a),s=200/Math.atan2(X*X,Y*i)

Nov 18 2021 5:19 AM UTC

}// 121/140

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u/Xen

nice!
u/UEZ

#ball #motion

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danny@hille.dk

remix of d/24031 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󮬽󨼮󭽩󩍴󪌽󭼽󜬱󞌻󩭯󬬨󫜽󜽥󝌻󫜭󛜻󚝸󛭦󪝬󫍒󩝣󭌨󪜽󫜥󭼬󪬽󫜯󭽼󜌬󮬬󮬩󛍲󟜨󦌽󪜯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚍴󛼲󚜭󜼩󚭘󚼨󦜽󪬯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚌭󭌪󜼥󜼮󜬩󛜲󚜪󦜬󩌽󬬾󜜿󜌺󠼨󬬩󛼷󛍺󟝓󚍘󛽤󛝴󚬹󚜯󠼨󦜯󩌪󛬵󝜫󭌪󞜩󟬱󒬻`.replace(/u../g,'')))

Oct 9 2021 10:18 PM UTC

}// 130/140

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Now i suck a football/soccer both IRL and virtual :-)

u/danny@hille.dk

uncompressed but (less bouncy) -> c.width=w=218;for(z=m=3e4;m--;)x.fillRect(X=m%w,Y=m/w,z,z),r=(i=X/w*4-2)*i+(j=Y/w*4-S(-t%3.2)-2)*j,d=r>1?0:C(r)/7,z=S(i/d-t*4)/C(j/d*.5+t)>1
u/danny@hille.dk

#d3
u/danny@hille.dk

#ball
u/danny@hille.dk

#hexagon
u/danny@hille.dk

#football

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

//bounce












eval(unescape(escape`󮬽󨼮󭽩󩍴󪌽󭼽󜬱󞌻󩭯󬬨󫜽󜽥󝌻󫜭󛜻󚝸󛭦󪝬󫍒󩝣󭌨󪜽󫜥󭼬󪬽󫜯󭽼󜌬󮬪󚬮󜜬󜬩󛍲󟜨󦌽󪜯󭼪󝌭󜬩󚭘󚼨󦜽󪬯󭼪󝌭󜜮󜜩󚭙󛍤󟝲󟬱󟽓󚍴󚬴󙜳󛬲󚜯󞌭󛬲󝌺󠼨󬬩󛼷󛍺󟝓󚍘󛽤󛝴󚬱󞜩󚭃󚍙󛽤󚽴󚬹󚜻`.replace(/u../g,'')))

Oct 6 2021 8:38 PM UTC

}// 140/140

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bouncy bouncy remix

u/magna

Wow! Also, the flex of taking up 22 characters with that preamble :D
u/danny@hille.dk

u/magna thanks :-)
u/danny@hille.dk

glsl version -> https://glslsandbox.com/e#75728.1
u/danny@hille.dk

#d3 #ball

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󭍼󯌨󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼽󨼮󭽩󩍴󪌽󜼶󜌬󭼩󚜻󩭯󬬨󫜽󮬽󞝥󝌻󫜭󛜻󢜮󩍡󭍡󛭳󩝴󚍛󬼽󤼨󮬽󤼨󦜯󩌪󬬫󭌪󝼫󠼨󦌯󩌫󭌪󝜩󚜩󚭷󛍳󛍳󛍷󧜬󫜪󝌩󚝩󟝭󙝷󛍪󟝭󛽷󛍤󟜨󬬽󚍘󟝩󛼹󜌭󜬩󚭘󚼨󦜽󪬯󞜰󛜱󛬱󚜪󦜩󟬱󟼮󜬺󠼨󬬩󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Sep 22 2021 11:20 PM UTC

}// 137/140

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dunno what to label this remix

u/UEZ

#glass #ball #reflection - looks very cool.
u/danny@hille.dk

Thanks u/UEZ, now that you mentioned it, glass ball seems kinda obvious :-)

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danny@hille.dk

remix of d/23526 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󭼽󞜹󞽦󫽲󚍭󟜶󩜳󞽭󛜭󞽸󛭦󪝬󫍓󭍹󫍥󟝒󚍲󟝢󚬹󚽓󚍡󛼹󚜪󤼨󨬯󞌫󭌪󞜫󪼩󚭷󛍲󚬮󝜩󚝸󛭦󪝬󫍒󩝣󭌨󨜽󫜥󭼬󨬽󫜯󭽼󜌬󜬬󜜭󚌨󦜽󛜱󚼲󚭡󛽷󚜪󚍯󟜨󜼭󚌴󛜵󚬨󩜽󚍘󟜱󛜨󪼽󤼨󭌥󜼮󜬩󚜭󜬪󨬯󭼩󚭘󚽙󚭙󚜩󚬪󛬵󚜯󚼫󩜩󚭷󚽴󚭷󙭷󧭘󚭯󚭷󙭷󚜯󭼩`.replace(/u../g,'')))

Aug 16 2021 6:39 PM UTC

}// 140/140

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bug fix & tweek remix

u/danny@hille.dk

#fire #ball #disco #inferno

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tomxor

remix of d/23549 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨐽𣑡𭁨𛡡𨡳𛁣𛡳𭁹𫁥𛡢𨑣𪱧𬡯𭑮𩀽𙰣𞐹𞐧𛁣𛡷𪑤𭁨𙠽𪐽𝀳𝐲𞱘🐱𛐨𭀫𪐯𜰲𚐥𜠬𦐽𛐭𪐯𜡥𜰻𮀮𩡩𫁬𤱴𮑬𩐽𚁩𧡩🠾𝠩𙠸🰧𬡥𩀧𞠧𘱦𩡦𙰬𮀮𩡩𫁬𤡥𨱴𚀶𝀪𚁘𛱲𚱡𚀲𛑴𙐴𚐫𜐩𛀹𝠭𝠴𚠨𦐯𬠫𨐨𤰨𭀩𚐩𛁫🐵𛱲𛐲𛁫𚐩𬠽𛐭𦐪𦐫𦀪𦀫𜐻`.replace(/u../g,'')))

Aug 13 2021 9:03 PM UTC

}// 140/140

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Smooth Colour #Amiga #Ball

Show more comments…
u/tomxor

If someone can squeeze in a hard shadow and a purple grid we will be done.
u/danny@hille.dk

Beautiful
u/danny@hille.dk

I distinctly remember the grid to be blue... but all the youtube videos shows it to be purple... I think it's a conspiracy :-)
u/ullo

i like
u/KilledByAPixel

dweetabase updated! https://dweetabase.3d2k.com/
u/tomxor

I can't find it now but I seem to remember reading about how emulated colours of amigas look different from real amiga video output. The emulators are probably just spitting out the RGB values and letting the host OS do the gamma etc. I suspect real amiga video output must have been a bit "coloured" which causes this difference.

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tomxor

remix of d/23544 by u/pavel

function u(t) {

for(a=Math.abs,c.width&=i=4352;X=1-(T+i/32)%2,Y=--i/2e3;x.fillRect(X*r+64*T,Y*r+96-64*a(S(t)),T=a(2-t%4)+1,(i^i/64)/8&1))r=64/(--Y*Y+X*X+1)

Aug 13 2021 12:57 AM UTC

}// 139/140

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Smoother #Amiga #Ball

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u/tomxor

..But less authentic. Remaps the pixel positions rather than texture, which gives "free" antialiasing, with spare space to correct the spin.
u/pavel

Oh yeah, nice. This is definitely a better way of doing it. The other mapping has an incorrect center that I have to waste characters to correct.
u/pavel

-2 char using S(t%3.14) to bounce and inlining the single Math.abs call
u/danny@hille.dk

What a clever trick, using modulus pi of t, to only get the positive part of the sinus curve
u/danny@hille.dk

3.2 works fine, while 3 and 3.1 looks wrong
u/danny@hille.dk

test code: c.width|=0,x.fillRect(o=860,o-S(t*4%3.2)*o,200,200)

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danny@hille.dk

remix of d/23514 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󭼽󞜹󞽦󫽲󚍭󟝷󚭷󞽭󛜭󞽸󛭦󪝬󫍓󭍹󫍥󟝒󚍲󟝭󛼸󚽓󚍡󛼹󚜪󤼨󨬯󝬫󭌪󞜫󤼨󨜯󞌭󭌪󜼩󚜪󭼬󬬪󛬶󚜩󩜽󚍘󟜱󛜴󚭭󛽷󛽷󚜪󦌫󚍙󟜭󜬫󝌪󚍭󙝷󚜯󭼩󚭙󛍸󛭦󪝬󫍒󩝣󭌨󨜽󫜥󭼬󨬽󫜯󭼬󜜬󜜭󚍙󚬨󫼽󚌳󛜨󝌭󝜪󩜩󚬪󛬵󚜯󚼫󩜩󚭷󚽴󚭷󙭷󧭘󚭯󚭷󙭷󚜯󭼩`.replace(/u../g,'')))

Aug 9 2021 9:05 PM UTC

}// 140/140

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disco inferno remix - #disco #ball #spere #fire

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u/danny@hille.dk

uncompressed: c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,1-(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

2 more variants:
u/danny@hille.dk

c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,1+(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

and
u/danny@hille.dk

c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

I think this is my favorite:
u/danny@hille.dk

c.width=w=127;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w*2)
u/neimad

wtffffffff
u/magna

constraints stoke fire
u/ullo

good

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