Dweets awesomed by u/katkip

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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New_Core

function u(t) {

with(x)for(c.width|=i=9;i--;fill())beginPath(fillStyle=R(255-i*255,255-i*9)),arc(X=960+(80-i*9)*S(t+i/9),Y=i*40+99,50+i*50,1,2),lineTo(X,Y)

Dec 16 2020 7:01 PM UTC

}// 139/140

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this year the Christmas tree has a "star" but no decoration

u/pavel

-4 with(x)for(c.width|=i=9;i--;fill(arc(X,Y,50+i*50,1,2)))beginPath(fillStyle=R(255*!i,255-i*9)),moveTo(X=960+(80-i*9)*S(t+i/9),Y=i*40+99)
u/pavel

-1 255*!i -> !i<<7

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katkip

remix of d/18618 by u/HellMood

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𩡩𫁴𩑲👠𨱯𫡴𬡡𬱴𚀱𜀩𨀻𩡯𬠨𪐽𞀴𞱩𛐭𞰩𮱬🐷𜀰𜀯𚁩𚠲𛐷𞀩𞱦𫱲𚁫🐳𜠸𞱫𛐭𞰩𫐽𫀪𚁫𛐱𝐴𚐯𜰵𛁮👬𚱴𚠲𜀰𛁸𛡦𪑬𫁓𭁹𫁥👒𚀨𫡞𫐩𙠲𝐳𚐬𮀮𩡩𫁬𤡥𨱴𚁫𚠶𛁩𚠱𜰬𝠬𜐳𚑽`.replace(/u../g,'')))

Dec 16 2020 3:54 PM UTC

}// 119/140

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runnin

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katkip

remix of d/4804 by u/indjev99

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𩡩𫁴𩑲👠𨱯𫡴𬡡𬱴𚀹𚑠𛁄👢🐾𥀨𚁩𚡩𚱢𚡢𚱴𚐪𚠮𜰭𭀩𞱦𫱲𚁩🐱𞐲𞱩𛐭𞰩𩡯𬠨𪠽𜐰𞀻𪠭𛐻𚑤👄𚀲𛑪𚐫𡀨𞐶𛑪𚐫𜐲𞀬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𩀬𩀬𩀩𛁸𛡦𪑬𫁒𩑣𭀨𪐪𞐬𪠪𞐬𞐬𞐩`.replace(/u../g,'')))

Dec 16 2020 3:07 PM UTC

}// 118/140

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embossed overlapping waves

u/DataMeta

cool!

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katkip

remix of d/21013 by u/Steckerleiste

function u(t) {

for(z=4*t,v=99*(C(z/4)+1),x.fillStyle=`${R(v,v,v)}`,j=0;j++<509;)i=j/7<<6,n=z/9+j%7*.9+i/250,x.fillRect(S(n)*i*t+960,C(n)*i*t+540,j/t,j/t)

Dec 16 2020 2:57 PM UTC

}// 138/140

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katkip

function u(t) {

c.width*=1;
c.style.filter="blur(1em)contrast(39)";
for(Z=51;Z--;)x.beginPath(),x.fill(x.arc(960+S(Z*9-t)*20*Z,540+C(Z-t)*20*Z,80,0,7))

Dec 15 2020 12:18 PM UTC

}// 135/140

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u/Xen

nicely done
u/joeytwiddle

#metaballs

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lerc

function u(t) {

eval(unescape(escape`𭁼𯀨𨰮𭱩𩁴𪀯🐶𚐊𣐽𨐽🡸𛡦𪑬𭁥𬠽𨐿𘡮𫱮𩐢𞠢𨡬𭑲𚀱𬁸𚑢𬡩𩱨𭁮𩑳𬰨𞐰𙐢𒡍𚀩𞱸𛡤𬡡𭱉𫑡𩱥𚁣𛀰𛀰𚐊𩡯𬠨𪐽𫠽𞐰𞰭𛑩𞰩𮀮𩡩𫁬𤡥𨱴𚀱𝠰𛑓𚁘👩𚱴𚠴𚐪𚀱𛐨𭠽𠰨𪐪𫠩𚐪𭠩𚡮𛁶𚡮𚱮𛀴𛀲𛁸𛡦𪑬𫁓𭁹𫁥🐢𘱆𘠫𚁩𚰱𜀩𛁍𚁃𚁘𚐼𜀩𚐊`.replace(/u../g,'')))

Dec 14 2020 11:58 AM UTC

}// 140/140

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Christmas ornament

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ntsutae

function u(t) {

for(t*=30,c.width=X=128;X--;)for(Y=72;Y--;)(t+X^t-Y)%41<Y/4&&x.fillRect(X,Y,1,1)

Dec 13 2020 9:38 PM UTC

}// 80/140

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u/magna

Fantastic!

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Pascal

function u(t) {

c.style.filter="blur(30px)contrast(99)";for(c.width|=k=300,l=0;l<4;l++)e=l*1.6,x.fillRect(860+k*C(3*t+e)+k*S(t+e),400+k*S(5*t+e)*C(t+e),k,k)

Dec 12 2020 8:50 PM UTC

}// 140/140

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mirrored #metaballs

u/Xen

smooth
u/magna

wobbly

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jellyedwards

remix of d/20957 by u/KilledByAPixel

function u(t) {

for(e=k=c.width|=w=60;n=k--/w|0;x.fillRect(j=k%w/12|x.rotate(k%w/1.9),S(n**j),1,1))x.setTransform(v=3+n%9,0,0,k%2?v:-v,n*w,(n*n+t*v)*99%e-w)

Dec 11 2020 10:11 AM UTC

}// 140/140

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teeny change so they fall at different rates

u/jellyedwards

#snowflake
u/jellyedwards

-5 chars for(e=k=c.width|=w=60;n=k--/w|0;x.fillRect(j=k%w/12|x.rotate(k%w/1.9),S(n**j),1,1))x.setTransform(v=3+n%9,0,0,k%2?v:-v,n*w,(n+t)*v*w%e) is it enough for u/KilledByAPixel to make them spin or sway in the wind? :)
u/KilledByAPixel

looks good!
u/jellyedwards

spinning but only 1 char left: for(e=k=c.width|=w=60;n=--k/w|0;R=-R|1,x.fillRect(j=k%w/12|x.rotate(k%w/1.9+R*t),S(n**j),1,1))x.setTransform(v=n%9,0,0,R*v,w*n,(n+t)*v*w%e)

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jellyedwards

function u(t) {

f=(X,Y,L,A,g)=>{if(g>0){for(i=L/=2;--i>0;)x.fillRect(X+=C(A),Y+=S(A),1,1)
f(X,Y,L,A-g%3+1,g-1)}}
f(960,540,b=40*t%600,Math.PI/3*~~b,5-~~t%5)

Dec 10 2020 4:24 AM UTC

}// 140/140

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#snowflake crystallization

u/sigveseb

Nice one!
u/katkip

great technique

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