Random dweets | Dwitter

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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mark1626

remix of d/22175 by u/mark1626

function u(t) {

for(i=k=256;--i;x.fillRect(960+k*X*C(Y),540+k*X*S(Y),w=i/t,w))f=i*t,X=f*f%5,Y=X*f%13,x.fillStyle=R(q=i*S(T(X)+T(Y)),T(T(X+q/i)*i),i*T(q/i))

Mar 28 2021 11:16 AM UTC

}// 139/140

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u/joeytwiddle

I never knew phi was so sparkly, or that it held yin and yang within

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rodrigo.siqueira

remix of d/27272 by u/rodrigo.siqueira

function u(t) {

for(v=218;v--;)
for(a=b=0,i=9;i--;){
f=a*b,
a=a*a-b*b-2+(h=i*S(t*5)*S(v/9)+t*20)/99
b=2*S(f)+v/80-1.4
x.fillRect(h*6,5*v,1,b)
}

Mar 29 2023 12:35 AM UTC

}// 128/140

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Mandelbrot Printer #mandelbrot #fractal

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BackendForth

function u(t) {

for(i=599;i--;){v=Math.random
a=v()*1920
b=v()*1080
x.fillStyle=R(255*.9999**((C(t)*600+960-a)**2+(S(t)*400+540-b)**2))
x.fillRect(a,b,9,9)}

Jul 14 2021 12:51 PM UTC

}// 140/140

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WeirdWaves

function u(t) {

c.width = 256;for(i=0;i<256;i++){for(j=0;j<256;j++){ x.fillStyle = "rgba(0,0,0,"+((i*j/t)%5).toString()+")";x.fillRect(i,j,1,1)}}

Sep 26 2021 9:28 AM UTC

}// 130/140

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iverjo

function u(t) {

for(i=0;i<2400;i++)x.beginPath(),x.arc(960+i*C(i/20),540+i*S(i/20)/3,29+i*i/2e4,0,7),x.fillStyle='#'+['000','A0E','FFF','9F0'][i%4],x.fill()

Jan 28 2017 10:00 PM UTC

}// 140/140

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Optical illusion: Go fullscreen and glance at the different parts of the image. As you move your eyes, it may seem like other parts of the image moves slightly.

Show more comments…
u/iverjo

This needs a large and bright display to work
u/donbright

lol i kept looking for 't' in your code, not there!
u/iverjo

Haha!
u/CliffJonesJr

I love these illusion dweets. Nice!
u/iverjo

Thanks :)
u/iverjo

#opticalillusion

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KilledByAPixel

remix of d/17249 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𪰽𞀰𜀬𭁲𨑮𬱬𨑴𩐨𞐶𜀬𞐹𚐻𪐽𪰭𛐾🠳𞱪🱦𪑬𫁒𩑣𭀨𛐱𞐹𚱪𚡔𛀶𜀭𤰨𝀪𭀫𚁡🠾𝀩𚱪𚐪𞐬𥀽𝀰𛁫𚐺𬱣𨑬𩐨𮠽𜐮𜀳𛁺𚐩𪠽𪰥𞀬𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀰𘀤𮱺🐨𚁡👩𚱴𚠶𜀩🠾𝁞𪠩𙐲𚠹𞑽𙐤𮱡𙐱𝠪𜰫𮠯𜰫𪰪𚠳𛰷𩐶𯐥𨀻`.replace(/u../g,'')))

Jan 16 2020 8:33 PM UTC

}// 140/140

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Bumpy Checker Road

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alien

remix of d/2848 by u/alien

function u(t) {

w=c.width=200;f=frame
c.style.background='#B28'
x.beginPath()
 for(i=0;i<w;i++)
  x.lineTo(55*S(29.5*i**.02+t)+99,50*C(t+i)+60)
 x.stroke()

Jul 13 2017 6:12 PM UTC

}// 140/140

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erin

remix of d/21688 by u/Xen

function u(t) {

for(c.width=i=1e3;i--;x.arc(480,270,200,i*i*i+t,t))x.lineWidth=.1;x.stroke()

Feb 17 2021 4:37 AM UTC

}// 76/140

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meeting

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BackendForth

function u(t) {

x.fillStyle=t<28?"#FF0000":"#ffffff"
for(i=12;i--;){q=S(t*t/279)*15
w=i*.52+9/t+1.4**(t-30)
x.fillRect(960+C(w)*t*9-q,540+S(w)*t*9-q/2,q,q)}

Feb 27 2021 6:31 PM UTC

}// 140/140

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Peppermint? #candy

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ciaccodavide

remix of d/24733 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𠐽𦰮𛠮𭀿𠐺𦱝𛁻𦀺𦀽𝀳𞀫𚁒👍𨑴𪀮𬡡𫡤𫱭𚐨𚐪𜐰𝀴𛁙𞡙🐳𜰳𚱒𚀩𚠴𜐴𛁲𞡴🱲👍𨑴𪀮𫑩𫠨𛠮𛡁𛡭𨑰𚁢🐾𣑡𭁨𛡡𨡳𚁍𨑴𪀮𪁹𬁯𭀨𦀭𨠮𦀬𦐭𨠮𦐩𛑢𛡲𚐯𜠩𚐺𞑽𧐊𬠾𜠦𙡸𛡳𭁲𫱫𩐨𤀽𫡥𭰠𤁡𭁨𜡄𛁐𛡡𬡣𚁘𛁙𛁲𛀰𛀷𚐩`.replace(/u../g,'')))

Jan 13 2022 11:00 PM UTC

}// 132/140

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nevercolliding circles

u/ciaccodavide

this one was really fun to golf!
u/ciaccodavide

#fullscreen #screensaver #art