Dweets awesomed by u/lars-erik

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: #Opposites

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KilledByAPixel

remix of d/22784 by u/KilledByAPixel

function u(t) {

for(o='',i=99;i--;c.style.filter='invert(')o+=String.fromCharCode(55308,56320+1024*Math.random(x.font='3in"'))
x.fillText(o,-99,16500*t-39)

May 21 2021 3:39 AM UTC

}// 139/140

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Random Hieroglyph Wall

u/DaSpider

d/16502

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New_Core

function u(t) {

for(c.width|=i=a=540;i--;x.fillRect(960+a*S(v=i>>2)*Z,a+a*C(v)*Z,b=Z*50,b))Z=99/((i-t*99)%a+a),x.fillStyle=`hsl(${i},99%,${(a/Z/20)-i%4*9}%`

May 20 2021 6:26 PM UTC

}// 140/140

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u/miratcan

what is $ for?
u/magna

x.fillCube()
u/rep_movsd

${x} surrounded by backticks is ES6 javascript syntax - it puts the value of x in the string
u/Agnes

${} is usually more characters than string concatenation, but if you're doing mathematics in the expression (like "(a/Z/20)-i%4*9" here) you end up needing to surround it with so many parentheses if you're doing string concatenation that template strings are handier.
u/Agnes

${} is usually more characters than string concatenation, but if you're doing mathematics in the expression (like "(a/Z/20)-i%4*9" here) you end up needing to surround it with so many parentheses if you're doing string concatenation that template strings are handier.

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BackendForth

remix of d/22806 by u/BackendForth

function u(t) {

c.width|=0
for(a=1920;a-=192;)
for(b=1080;b-=108;)
{i=a,j=b
for(k=299;k--;){x.fillRect(i,j,2,2)
i+=S((j-540)*(h=S(t)/35))
j+=S((i-960)*h)}}

May 20 2021 5:13 PM UTC

}// 139/140

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Adjusting the zoom on a phase space

u/rep_movsd

Wow I had a very similar dweet when experimenting yesterday by sheer coincidence
u/BackendForth

Great minds think alike?
u/katkip

smooth
u/joeytwiddle

Nice novel style. #hiddengem

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BackendForth

remix of d/22820 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(a=v()*256)
for(k=999;k--;)x.fillRect(i,j,3,3),a=(i-960)/50,b=(j-540)/50,i+=1/S(b),j+=1/S(a)

May 19 2021 1:53 AM UTC

}// 139/140

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Flower petals? Wallpaper?

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BackendForth

remix of d/22819 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(0,0,a=v()*256)
for(k=999;k--;)x.fillRect(i,j,3,3),a=i-960,b=j-540,i+=S(b/a),j+=S(a/b)

May 19 2021 1:47 AM UTC

}// 133/140

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Underground tunnel? Cracked windshield? Going to warp?

u/lars-erik

#fracture

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tato

function u(t) {

v=Math.random
x.font=v()*480+'px a';
x.fillText(String.fromCodePoint(parseInt((128512+v()*80).toString(16),16)),-200+v()*1920,v()*1080);

May 18 2021 8:25 PM UTC

}// 136/140

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emoji madness

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BackendForth

remix of d/22806 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(v()*256)
for(k=399;k--;)x.fillRect(i,j,3,3),i+=S(a=(j-540)/50)+(b=(i-960)/450),j+=S(b*9)+a/9

May 18 2021 1:34 PM UTC

}// 140/140

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Locks of hair? Lava flows? Twizzlers?

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KilledByAPixel

remix of d/22803 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󜭥󜼬󪼽󮬽󞜹󞽫󟍷󞽸󛭦󪝬󫍒󩝣󭌨󪬿󪜪󜬰󞬰󛍪󟽪󟬲󟼴󜌰󚽪󚬴󝬭󤼨󪜯󪬪󝜫󭌪󪬩󚭪󞭺󚽩󚬪󝜥󜬹󞜫󪜪󨬺󪜪󞜬󪬿󜬰󞭷󛍡󟽷󞬹󚜩󪜽󪼥󮬬󪬽󪼫󚼾󟬷󛍡󟝪󛜲󛍢󟝪󘜽󜜬󩬽󪭼󯍩󛍸󛭦󪝬󫍓󭍹󫍥󟝒󚍱󟝡󟽦󚬹󚽢󚭓󚍦󚭦󚽴󚜪󜼹󞭷󛍪󚭪󚽱󛝺󛍪󟽪󚬲󝜺󮬩`.replace(/u../g,'')))

May 18 2021 5:09 AM UTC

}// 140/140

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Ocean City Sunset 🌆🌊

Show more comments…
u/KilledByAPixel

#city #landscape
u/magna

Fantastic!
u/andrea270872

it really has a retro-game quality! cool
u/aleamb

wow!
u/magna

This is masterclass.
u/cheft

awesome
u/KilledByAPixel

how i made it https://youtu.be/vnx8kI4EcVc

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BackendForth

remix of d/22804 by u/BackendForth

function u(t) {

v=Math.random
i=v()*1920,j=v()*1080,x.fillStyle=R(0,v()*256)
for(k=299;k--;){x.fillRect(i,j,3,3)
i+=S((j-540)/50)
j+=S((i-960)/50)}

May 18 2021 1:47 AM UTC

}// 131/140

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Plant cells?

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BackendForth

function u(t) {

v=Math.random
if(v()<.2)i=v()*1920,j=v()*1080
for(k=99;k--;){x.fillRect(i,j,3,3)
i+=(j-540)/70
j+=S((i-960)/70)
}

May 18 2021 1:34 AM UTC

}// 113/140

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Phase space for a pendulum

u/rep_movsd

Try
u/rep_movsd

v=Math.random x.fillStyle='#d964' if(v()<.9)i=v()*1920,j=v()*1080 for(k=99;k--;){x.fillRect(i,j,6*v(),80*v()) i+=(j-540)/(70 +v()*10) j+=S((i-960)/70) }
u/BackendForth

Neat! You can actually drop the "if(v()<.2)" altogether and tweak k=99 for some extra characters

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