Top dweets by u/ersagun

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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ersagun

function u(t) {

for(i=j=0,f=24;f--;i+=d("◴∈⌹⌙⍈⌮⌠⌇⌢⌑⌆⌤⌾⍃⌣⌘⌯⌧〈⌳〉⌤⌬⌯"),j+=d(
"○⍈⌾⋻⌤⋧⌥⌬⌰⍕⍓⌗⌥⋼⌘⌭⋧〉⌔⌗⍃⌫⌛〈"))d=a=>C(t*f)*(a.charCodeAt(f)-9e3)
x.fillRect(i,j,9,9)

Oct 21 2018 12:11 AM UTC

}// 140/140

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#yeah

Show more comments…
u/ersagun

This uses a modified version of DCT. All data is in 2 magic strings. To create your own: https://pastebin.com/zEH5aH1R copy this to a dweet draft, draw, get your own magic strings.
u/katkip

wait wot that s actually toi impresive to think how its made
u/iverjo

Clever!
u/Banjuan

Wow dude!
u/Banjuan

Wow dude!
u/magna

yup.
u/aleamb

yeah!!!
u/f8f82804

Awesome! I don't think I've seen a technique like this before! #compressed #math
u/cantelope

crazy cool

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ersagun

function u(t) {

t*=60;i=j=0;for(s=8;u=1&(t/2),v=1&(t^u),(s*=2)<513;t/=4){if(!v){if(u==1)i=s-16-i,j=s-16-j;z=i;i=j;j=z}i+=s*u,j+=s*v}x.lineTo(i,j),x.stroke()

Oct 21 2018 10:36 PM UTC

}// 140/140

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Hilbert curve

u/aleamb

love it!
u/aleamb

#hilbert #fractal
u/pavel

Shaved off 16 chars: for(t*=60,i=j=0,s=8;u=t&2?1:0,s*=2,s<513;t/=4,i+=s*u)1&t^u?j+=s:(u&&(i=s-16-i,j=s-16-j),i+=j-(j=i));x.lineTo(i,j);x.stroke()

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ersagun

function u(t) {

for(z=2000;z--;)with(x)translate(999,999),rotate(61),scale(.99999,.99999),translate(-999,-999),fillRect(0,0,5,5)

Nov 21 2018 8:06 PM UTC

}// 112/140

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u/katkip

Looks like a fractal

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ersagun

function u(t) {

w=c.width=500
for(i=98;i--;)for(j=55;A=i-49,B=j-28,j--;)x.fillStyle=R((A*A+(B-S(t*2)*20)**2)*(B*B+(A-C(t)*40)**2)/w),x.fillRect(5*i,5*j,5,5)

Oct 21 2018 2:26 PM UTC

}// 140/140

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@veubeke helped trim 2 characters.

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ersagun

remix of d/18372 by u/KilledByAPixel

function u(t) {

x.fillRect(960-t*200,540-(w=(t*(2-t))**.5*200),4,w*2)

Apr 21 2020 6:59 PM UTC

}// 53/140

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Is this ok?

u/BriSeven

#circlechallenge

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ersagun

remix of d/10573 by u/logistikalism@gmail.com

function u(t) {

for(i=9;--i;)for(j=9;--j;)x.fillRect(120*i+C(t*i)*50,120*j+C(t*j)*50,1,1)
x.fillRect(C(t)*300+1480,C(t*(1+Math.sqrt(2))/2)*300+540,1,1)

Oct 21 2018 1:10 AM UTC

}// 135/140

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Plaid pillow #goldenratio #phi

u/katkip

nice

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ersagun

function u(t) {

j=C(T=t*4-S(t*8)/2)-S(Math.acos(1-Math.abs(i=S(T))))
z=(a,k)=>(a*(3-C(T/27))+k)*99
x.lineTo(z(i,9),z(j/1.5,7))
x.stroke()

Oct 19 2018 6:55 PM UTC

}// 121/140

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I thought I should start simple. Heart formula I used here is a parametrization of a heart formula I derived some years ago.

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ersagun

function u(t) {

if(!t)X=Y=0
for(i=0;i<1e3;i++)X=(X*.8+Y*.3+S(A=(Math.random()*3|0)*2))/1.2,Y=(Y*.8-X*.8+C(A))/1.2,x.fillRect(1e3+Y*200,500+X*200,1,1)

Apr 1 2020 3:42 PM UTC

}// 133/140

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chaos game fractal

u/katkip

awesome!

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ersagun

remix of d/10578 by u/ersagun

function u(t) {

for(i=j=f=24;d=a=>C(t*f)*(a[0].charCodeAt(f)-9e3),f--;i+=d`◴∈⌹⌙⍈⌮⌠⌇⌢⌑⌆⌤⌾⍃⌣⌘⌯⌧〈⌳〉⌤⌬⌯`)j+=d`○⍈⌾⋻⌤⋧⌥⌬⌰⍕⍓⌗⌥⋼⌘⌭⋧〉⌔⌗⍃⌫⌛〈`
x.fillRect(i,j,9,9)

Oct 21 2018 3:43 PM UTC

}// 135/140

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#yeah I managed to remove 5 characters using tagged template literals. I can add 2 more harmonics(=4 characters) now.

u/New_Core

nice.. now you can do x.lineTo(i,j) x.stroke()

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ersagun

remix of d/18086 by u/pavel

function u(t) {

with(x)fillStyle='#FFF',fillRect(0,0,2,1e3),fillStyle=R(),fillRect(0,540,2,10),drawImage(c,2,Math.random()*10-5)

Apr 2 2020 9:28 PM UTC

}// 112/140

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brown noise

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