Dweets awesomed by u/artfarnaa

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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pavel

remix of d/21012 by u/pavel

function u(t) {

with(x)for(c.width|=i=710;i--;beginPath(fill(ellipse(40+18*C(a=++t%3.1416),0,w=S(a),!rotate(i*49+w/3),a,0,7))))setTransform(9,0,0,9,960,540)

Dec 17 2020 3:03 AM UTC

}// 140/140

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Torus Study #2

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pavel

function u(t) {

with(x)for(fillRect(i=-710,i,i*=-2,i);i--;clearRect(20+9*S(a=i+t),2,w=C(a),w>0))setTransform(16,0,0,16,960,540),rotate(i/226)

Dec 15 2020 11:04 PM UTC

}// 125/140

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Torus Study #1

u/magna

WOW!
u/vovanmozg

fantastic!

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rodrigo.siqueira

remix of d/20959 by u/jellyedwards

function u(t) {

c.style.filter=`invert(`
for(e=k=c.width|=w=50;k--;x.fillRect(w|x.rotate(k%w+t/4),9,1,1))
x.setTransform(v=2+k%7,0,0,v,k,(k*k+t*v)*w%e-w*8)

Dec 15 2020 6:23 PM UTC

}// 139/140

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Night snow #snowflake

u/Xen

smooth!
u/pavel

Nice. Here's 126, maybe room for snowflake code with(x)for(fillRect(0,0,i=2e3,i);i--;)clearRect(50,9,!setTransform(s=2+i%7,0,0,s,i,i&&(i*i+t*s)*50%2e3-400),i&&!rotate(i+t/4))

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KilledByAPixel

remix of d/20939 by u/KilledByAPixel

function u(t) {

c.style.filter='invert('
for(t*=i=300;i--;x.fillText(j=i/12|0,j,j*S(j*j*t),3))x.setTransform(1,0,0,i%2*2-1,t*24%1980,t),x.rotate(i%12/1.908)

Dec 8 2020 5:55 AM UTC

}// 140/140

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#snowflake study #3

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KilledByAPixel

remix of d/20925 by u/KilledByAPixel

function u(t) {

for(t*=7200,i=420;i--;x.fillText(j=i/12|0,j,15*S(j*j*t),4))x.setTransform(d=C(a=i%12/.954),e=S(a),e*(q=i%12<6?-1:1),-d*q,t%1980,t/24)

Dec 8 2020 12:07 AM UTC

}// 133/140

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#snowflake study #2

u/pavel

x.rotate is shorter, as usual for(t*=7200,i=420;i--;x.fillText(j=i/12|0,j,15*S(j*j*t),4))x.setTransform(1,0,0,i%12<6?-1:1,t%1980,t/24),x.rotate(i%12/.954)
u/KilledByAPixel

Thanks! I will use that method for the next iteration

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KilledByAPixel

remix of d/16862 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𪐽𞐹𝠻𭱩𭁨𚁸𚑦𫱲𚁳𩑴𥁲𨑮𬱦𫱲𫐨𜐬𜀬𜀬𜐬𚁴𚠽𝰲𝰰𚐥𜡥𜰬𭀯𜐶𚐻𪐭𛐻𬡥𬱴𫱲𩐨𩡩𫁬𤡥𨱴𚀰𛁓𚁪𚡪𚱴𚐪𜰹𛁪𛁪𛰲𞐩𚐩𬱡𭡥𚀩𛁳𨱡𫁥𚀡𬡯𭁡𭁥𚀨𜐫𪐫𪐥𜠩𚠮𝐲𜰶𚐬𪐥𜠪𜠭𜐩𛁲𫱴𨑴𩐨𪠽𪐯𜐲𯁣𫁩𬀨𫡥𭰠𤁡𭁨𜡄𚀧𫐰𘀰𭠵𜁨𜠹𙰩𚐩`.replace(/u../g,'')))

Dec 6 2020 4:02 AM UTC

}// 140/140

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#snowflake designs

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(X,540+200*C(a),-150,7))X=i%960*2,x.fillStyle=`hsl(${q=X/8+60*t},69%,${42+32*S(a=(q/32%1+(i>960))/.32)}%`

Dec 4 2020 8:45 PM UTC

}// 136/140

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Ribbons

u/pavel

Dynamically swapping the draw order to get proper overlapping. Change i>960 to 1 or 0 to see how this works.
u/Qwitter

cool, and thanks!

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=Math.PI/4+(p+p/4&1||-1)*(369/13*d+3*t)),240+p%4*200+130*S(a),d,d))d=i%120/9,p=i/120|0

Dec 1 2020 8:51 PM UTC

}// 140/140

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#beesandbombs demake https://twitter.com/beesandbombs/status/1327…

u/rep_movsd

If you stare a bit, you see white lines completing the circles - an optical illusion
u/danny@hille.dk

save 9 bytes for(i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+130*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+130*S(a),d,d))p=i/120|0,d=i%120/9
u/danny@hille.dk

120/9 = 40/3
u/danny@hille.dk

129 bytes -> for(m=120,i=c.width|=0;i--;x.fillRect(660+(p>>2)*200+m*C(a=.8+(p+p/4&1||-1)*(28.4*d+3*t)),240+p%4*200+m*S(a),d,d))d=i%m/9,p=i/m|0

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jellyedwards

remix of d/20746 by u/jellyedwards

function u(t) {

x.setTransform(28,0,0,30,800,400)
x.fillText('⊙⊙',0,2)
x.stroke(new Path2D(`m3-4c0-9 9-9 9 0M3 2c0 30 11 9 11 8q2-3 4-2M6 4c0 9 6 9 6-3`))

Nov 22 2020 10:27 PM UTC

}// 138/140

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A bit more like him

u/Xen

you made me spit beer! next level is bonzibuddy
u/jellyedwards

Oh god, I had forgotten about bonzibuddy! :D

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bandaloo

remix of d/19217 by u/bandaloo

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsl(${i/9+t*9},40%,${9+60*~~((1+C(t)+4*C(i/(99+20*C(t/5)))*S(t/2))%2)}%`)x.fillRect(i,0,1,1);x.drawImage(c,0,1)

Jun 30 2020 4:28 AM UTC

}// 138/140

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uncommon checkerboard

u/donbright

wild

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