Top dweets 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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Current theme challenge: #Food

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katkip

function u(t) {

c.width*=1;
for(i=49;i--;)
x.beginPath(),x.ellipse(960,840+(z=S(i/3-t)*(49-i)*3/(t+2)),50+i*40,i*5,0,0,7),x.stroke()

Oct 14 2020 7:38 AM UTC

}// 116/140

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water i think

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katkip

function u(t) {

f=(x,n=22)=>n>0?f(x/(1-x)-1,n-1):x

c.width=200
x.fillText(-f(t),50,60)

Sep 30 2020 5:44 PM UTC

}// 71/140

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why does my program print the golden ratio?

u/danny@hille.dk

without recursion: for(X=i=22;t==0&&i--;)X=X/(1-X)-1;x.scale(14,14),x.fillText(-X,10,10)

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katkip

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𨡡𨱫𩱲𫱵𫡤🐢𘱦𩠰𘠻𩠽𭰽🡻𪑦𚁓𚁷𚠳𚐼𠰨𭰪𜰩𚑸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𤰨𭰩𚠨𝀰𜀭𭀪𝐰𚐬𝐴𜀫𠰨𭰩𚠨𝀰𜀭𭀪𝐰𚐬𝐬𝐩𞱥𫁳𩐠𩠨𭰭𜐩𯐻𪑦𚀡𭀩𬐽𜀊𪑦𚁴🀵𯁼𭀾𝠦𙡴🀱𜀩𩡯𬠨𪐽𞐹𞱩𛐭𞰩𩠨𬐩𛁱𚰽𭀻`.replace(/u../g,'')))

Sep 13 2020 6:12 PM UTC

}// 128/140

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#waitforit #sign toxic!

u/tomxor

Nice!

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katkip

remix of d/19915 by u/katkip

function u(t) {

c.width*=1
if(!t)q=0;
for(j=999;j--;){Z=[q,q*2,t-q,t-q*3,q*4-t,q*7]
X=960,Y=540
for(i of Z){X+=C(i)*99,Y+=S(i)*99}x.fillRect(X,Y,9,9),q+=9}

Sep 11 2020 2:18 PM UTC

}// 139/140

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curve maker, change Z=[...

u/katkip

Z=[q,-q,-q,-q,q*3-t,q*2-t*2] is interesting
u/katkip

Z=[q,-q,-q,-q,-t,-t,q-t*2,q*9-t*5,q*3,t,t,q*5]
u/rep_movsd

Nice - this multi-sine thing would come in handy for more of my fruits

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katkip

function u(t) {

f=(x,n=t)=>n>0?f(S(x*2),n-1):x
for(i=960;i--;)x.fillRect(i*2,540-f(i/99)*500,2,2)

Aug 26 2020 7:10 PM UTC

}// 81/140

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#fourier

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katkip

function u(t) {

c.width*=1;
for(i=0;i<319;i+=.2)k=-i+290,x.fillStyle=`hsl(${k},99%,50%)`,x.fillRect(i*6,540+S((4*(i**1.1)**0.73)**0.81-t)*40,6,9)

Aug 23 2020 8:42 AM UTC

}// 129/140

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Colors in spectrum and their frequency (from 480THz to 750THz)

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katkip

function u(t) {

c.width|=t||(X=990,Y=240,y=0)
x.arc(960,540,200,0,7),x.arc(X,Y+=y+=.1,50,0,7),x.fill()
while(((960-X)**2+(540-Y)**2)**.5<250)Y-=0.001,X+=2/y

Jul 25 2020 6:40 PM UTC

}// 140/140

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#physics but weird

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katkip

remix of d/19381 by u/katkip

function u(t) {

if(!t){for(a=[-1,X=Y=q=f=0],i=29;i--;)a.push(...a,1)}
for(i=2999;q+=a[f++],i--;x.fillRect(1160+X,230+Y,1,1))X+=S(q*1.57),Y+=C(q*1.57)

Jul 12 2020 11:52 AM UTC

}// 133/140

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katkip

remix of d/19192 by u/katkip

function u(t) {

f=(x,y,n=20)=>n>0?f(2*x*y-.1,.7-y*y+x*x,n-.5):x
q=x=>S(x);for(i=3999;i--;)f(X=q(i*t+t/9)*2,Y=q(i*t)*4)?x.fillRect(Y*540+960,X*540+540,3,3):0

Jun 19 2020 1:37 PM UTC

}// 140/140

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my second julia-like fractal made from scratch o_O #slowrender #julia #fractal

u/katkip

i discovered a short rendering method
u/katkip

q=x=>S(x) was initially a random function between -1 and 1

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katkip

function u(t) {

eval(unescape(escape`𭁼𯀨𮠽𙰧𛁯🐱𚐬𬰽𘠯𚠴𝀴𝀴𝀫𛐥𧠦割𞱧👱🐾𮱷🐧𙰻𭱨𪑬𩐨𭰮𬱰𫁩𭁠𝁠𛡬𩑮𩱴𪀼𝐩𭰫👳𦰨𣑡𭁨𛡲𨑮𩁯𫐨𚐪𜐴𚑼𜁝𞱲𩑴𭑲𫠠𭱽𞱦𫱲𚁩🐹𞐹𞱩𛐭𞰩𮱴𬡹𮱴👠𙁻𬠽𩑶𨑬𚁱👧𚀩𚑽𘀽𘀤𮱱𯑠𞱯🐽𬠿𮠫🐨𫰫𚰬𭀫𙱜𫠧𚐺𜁽𨱡𭁣𪁻𯑽𭁨𬡯𭰠𮠠`.replace(/uD./g,'')))

Jun 2 2020 4:00 PM UTC

}// 140/140

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Sorting the four fours numbers! #waitforit #math #puzzle. This is an automatic program that will throw the list of natural numbers written as javascript expressions that eval that number! To view the code, replace eval with throw

u/katkip

example print: 1 = 44/44 2 = 4/4+4/+4 3 = 4+~44%4 4 = ~44%~4^4 5 = 44%4-~4 6 = 44/4+~4 7 = 44/4-4 8 = 4+4//-/^*4^*4 9 = 4/4+4+4
u/KilledByAPixel

nice!
u/katkip

looks like it gets stuck at 17
u/katkip

17 = 4^4*4-~4 18 = 4-~4+4-~4 19 = ~-4^~-4*4+4 20 = 4&4^4*4 21 = 4/4-~4*4
u/katkip

nvm. stuck at 22

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