Hot dweets by u/tactical_retard

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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tactical_retard

function u(t) {

r=Math.random
for(i=2e4;i--&&t<9;x.fillRect(p.x,p.y,.5,.5))p=T[i]=t?T[i]:{x:r()*2e3,y:r()*2e3},T[i].x+=S(p.y/540*3.1),T[i].y+=S(p.x/960*3.1)

Jun 4 2022 2:04 AM UTC

}// 140/140

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#vectorfield

u/rep_movsd

T[i].x+=S(p.y*(p.x**.5)) is interesting

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tactical_retard

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝦󫽲󚍩󟝳󟜲󩜳󞽩󛜭󞽳󭍲󫽫󩜨󚜩󠜽󠼨󬜽󪜩󚭳󛍂󟝓󚍱󚜪󬼬󨜽󠼨󬌽󪜪󚭴󚜪󬼬󨬽󤼨󬌩󚭳󛍢󩝧󪝮󤍡󭍨󚍳󭍲󫽫󩝓󭍹󫍥󟝒󚍓󚍤󟝍󨝴󪌮󪍹󬍯󭌨󚍁󚽡󚜯󜬬󚍂󚽢󚜯󜬩󛼹󚜯󩌪󜽥󜼬󜌬󜌬󛬰󝜩󚜬󫝯󭭥󥍯󚍁󚼹󝬰󛍂󚼵󝌰󚜬󫍩󫭥󥍯󚍡󚼹󝬰󛍢󚼵󝌰󚜻`.replace(/u../g,'')))

May 2 2022 7:41 PM UTC

}// 138/140

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Point

u/tactical_retard

It takes two random points on a circle, gets the mid point between them, then draws the line connecting them with a color based on the X and Y of the mid point.
u/tactical_retard

c.style.filter="brightness(3";with(x)for(i=s=2e3;i--;stroke())A=C(i)*s,B=S(i)*s,a=C(p=i**t)*s,b=S(p)*s,beginPath(strokeStyle=R(S(d=Math.hypot((A+a)/2-200,(B+b)/2-200)/9)/d*3e3,0,0,.05)),moveTo(A+960,B+540),lineTo(a+960,b+540)
u/tactical_retard

#red

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tactical_retard

function u(t) {

B=3
E=45
eval(unescape(escape`󬬽󠬊󫌽󜍼󣝡󭍨󛭬󫽧󜬨󡜩󚼱󒭳󟜢󘬊󩜽󪜽󜜊󭽨󪝬󩜨󪜼󫌩󬬪󟝲󛍳󚼽󨍓󘌤󮽰󟝠󙍻󠭽󧬤󮽥󯝠󯜠󚬠󙍻󬍽󘌽󘌤󮽂󯝞󙍻󩜫󟜢󜌢󯜊󨌬󡜦󜜼󟍬󛝩󚼫󛜱󙬦󚍲󚬽󠬬󬼫󟝠󣜠󙍻󬍽󘌪󘌤󮽂󯜠󟜠󙍻󠭽󧬤󮽥󟝥󛭳󫍩󨽥󚌰󛌭󜜩󚼱󯜊󨌩󒭴󪍲󫽷󘍳󚽲`.replace(/u../g,'')))

Apr 17 2022 12:44 AM UTC

}// 140/140

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Square & Multiply algorithm. It throws the steps and then the result. B is the base and E is the exponent.

u/tactical_retard

Inspiration: https://yewtu.be/watch?v=cbGB__V8MNk
u/tactical_retard

See the comment on d/25048 for more info on l=0|Math.log2(E)+1

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tactical_retard

remix of d/25178 by u/ArthurThuczsec

function u(t) {

t?x.fill(x.arc(130+Math.abs(t%2-1)*1660,b+=v=b>900?-v:v+4,130,0,c.width|=7)):b=(v=23)*9

Mar 23 2022 7:45 PM UTC

}// 87/140

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u/joeytwiddle

#bounce

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tactical_retard

function u(t) {

eval(unescape(escape`󬬽󚍘󛍙󛍢󛍤󚜽󟭻󫍥󭌠󮬽󜬪󚬭󩌪󝜴󜌬󡌽󩌫󜜊󬭥󭍵󬭮󘍤󟬶󟼨󮌮󩭩󫍬󤽴󮝬󩜽󤬨󨬩󛍸󛭦󪝬󫍒󩝣󭌨󦌬󦜬󭌬󭌩󛍲󚜺󬬨󦌬󦜬󨬯󜬬󡌩󚍘󚽺󛍙󛍢󛍄󚜨󦌬󦜫󮬬󨬬󡌩󚍘󚽺󛍙󚽺󛍢󛼲󛍄󚝽󒭲󚌰󛌰󛌲󝜵󛌰󚜻`.replace(/u../g,'')))

Mar 5 2022 8:09 PM UTC

}// 119/140

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failed attempt at drawing the xor texture recursively #waitforit

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tactical_retard

function u(t) {

s=0|t%6*20
M=Math
for(i=s*s;i--;x.fillRect(X*(a=1920/s),Y*(b=1080/s),a,b)){X=i%s
Y=0|i/s
x.fillStyle=R((X^Y)/(2**M.ceil(M.log2(s))-1)*255)}

Mar 1 2022 3:24 AM UTC

}// 139/140

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xor texture zoom with correct brightness scaling based on resolution

u/tactical_retard

brightness = (x ^ y) / (2 ** ceil(log2(s)) - 1) * 255
u/tactical_retard

More correct version: x.fillStyle=R((X^Y)/(2**(s-1?0|Math.log2(s-1)+1:1))*255). It subtracts 1 from s because the maximum value the component of a coordinate can have is s - 1 (e.g. the maximum x value for a coordinate on a 1920x1080 display is 1919). It also uses a more reliable method for getting the bit count of a number, because apparently the one in the post is quite naive. I wrote this script to test different methods and found 3 perfect ones: https://ghostbin.com/6DkSj/raw
u/tactical_retard

new link: https://pst.klgrth.io/paste/q4pvr/raw , archive: http://web.archive.org/web/20220601015945/ht…

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tactical_retard

function u(t) {

h=540
x.lineTo(X=960+C(k=t**t)*h,Y=h+S(k)*h)
x.moveTo(X,Y)
x.stroke()

Nov 1 2021 8:09 PM UTC

}// 69/140

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#circlechallenge

u/tactical_retard

55: h=540;x.lineTo(X=960+C(k=t**t)*h,Y=h+S(k)*h);x.stroke()

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tactical_retard

remix of d/20658 by u/dnmc

function u(t) {

r=_=>Math.random()*2-1
X=960+C(t)*500
Y=540+S(t)*500
for(i=1e3;i--;x.fillRect(X,Y,1,1)){
k=T(i**.5)
X+=r()*k
Y+=r()*k}

Oct 19 2021 6:43 PM UTC

}// 119/140

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tactical_retard

remix of d/24094 by u/tactical_retard

function u(t) {

eval(unescape(escape`󦜽󭌪󝬰󒭨󟜵󝌰󒭦󫽲󚍘󟜲󩜳󞽘󛜭󞽸󛭦󪝬󫍓󭍹󫍥󟝲󟽠󪍳󫌨󙍻󩌽󚍍󨝴󪌮󪍹󬍯󭌨󦌭󞜶󜌬󦜭󪌩󙭘󙝙󚜥󜬰󚬵󯜬󞜹󙜬󙍻󩍽󙝠󞭒󚌩󛍸󛭦󪝬󫍒󩝣󭌨󦌬󦜬󜜬󪌪󜬩󚝻󬬽󠜽󚍘󛜹󝬰󚜯󝌸󜌊󪬽󠬽󚍙󛝨󚜯󝌸󜌊󩭯󬬨󢜽󝼰󞽉󛜭󞽪󟜲󚭪󚭭󚽂󚝭󟝲󛍲󟝲󚭲󛝪󚭪󚽁󯜻`.replace(/u../g,'')))

Oct 15 2021 12:28 AM UTC

}// 139/140

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#gold #mandelbrot #sierpinski

u/cantelope

an unholy union lel
u/e4494s

how the frick

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tactical_retard

remix of d/23959 by u/tactical_retard

function u(t) {

if(!t){s=256
for(i=s*s;i--;x.fillRect(X*8,Y*4,8,4))X=i>>8,Y=i%s,A=X-s/2,B=Y-s/2,x.fillStyle=`hsl(${d=((A*A+B*B)**.5&X%Y)%20*5},99%,${d}%`}

Oct 13 2021 2:14 PM UTC

}// 138/140

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#gold #sierpinski

dwitter.net | tactical_retard (307)