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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Agnes

remix of d/8945 by u/firegodjr

function u(t) {

F=n=>{return C(n)*C(n)+S(n)*S(n)<1}
x.drawImage(c,0,l=10)
for(j=214;j--;)x.fillStyle=F(j^t*60)?"#0f0":"#000",x.fillRect(j*l,0,l,l)

Jul 28 2018 8:15 PM UTC

}// 130/140

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Visualising numbers for which sin(x)*sin(x) + cos(x)*cos(x) < 1.

u/donbright

wait wait wait wait wait.... sin^2 + cos^2 = 1. im so confused. is this about the imprecision of floating point arithmetic?
u/donbright

this is absolutely fascinating... set it ==1 or >1 gives different patterns.
u/donbright

also fun... return S(n)/C(n)==T(n)

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KilledByAPixel

remix of d/13894 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𡐽𚁗𛁚𛁆𚐽🡸𛡦𪑬𫀨𬀽𫡥𭰠𤁡𭁨𜡄𚁸𛡦𪑬𫁓𭁹𫁥👆𚐬𬀮𩑬𫁩𬁳𩐨𞐶𜀫𚁗🀹🰱𜰰𚡓𚁴𛰲𚐺𜀩𛀵𝀰𛁗𚠵𜀬𦠪𚀵𜀭𝑥𜰪𚁳🠰🱳𞠰𚐩𛀰𛀰𛀷𚐩𞱳👓𚁴𚐭𛠹𞐻𡐨𝰰𛀷𜀬𘠣𜀰𜀢𚐻𩡯𬠨𪐽𝰴𞱩𛐭𞱑👩𛐲𛁅𚁩𛰴𛀸𚱩𛰲𝀹𛁒𚁑𚠹𛁑𚠵𜀩𚐩𞰻`.replace(/u../g,'')))

May 17 2019 12:53 AM UTC

}// 139/140

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Cat Eye

u/KilledByAPixel

E=(W,Z,F)=>x.fill(p=new Path2D(x.fillStyle=F),p.ellipse(960+(W<9?130*S(t/2):0),540,W*50,Z*(50-5e3*(s>0?s:0)),0,0,7));s=S(t)-.99;E(99,99);for(i=74;i--;E(i/4,8+i/249,R(Q*9,Q*50)))Q=i-2
u/katkip

purrrrrrrrrrrrrrrrrrrrrr

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pythech

remix of d/8355 by u/BirdsTweetCodersDweet

function u(t) {

with(x)for(z=i=1e3;i--;t<=10?fillRect(S(m=t+i/490)*(k=80+t*40)+z,C(m)*k+390,5,5):fillText("debian",600,z))fillStyle='#d51253',font="15em x"

Jun 3 2018 5:24 PM UTC

}// 139/140

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close enough

u/pythech

maybe if someone adjusts the parameters, it will look better
u/BirdsTweetCodersDweet

Your text is invisible :P
u/pythech

Even after 10 seconds? Well it works on my Chrome
u/katkip

#logo

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CocoMeister

function u(t) {

o=(v)=>x.fillRect(i*v/90+920,-i+400,20,i*2)
for(x.fillStyle=R(),x.fillRect(0,0,1920,1080),i=50*t;i>50;i-=20)x.fillStyle=R(99,0,i),o(i),o(-i)

Apr 25 2018 7:12 PM UTC

}// 140/140

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#retrowave

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rippedspine

function u(t) {

a=300;b=a*2;for(i=2;i;i--)x.strokeStyle=R(C(t)*-255,S(t)*255,S(t)*-255);x.beginPath();x.arc(b+S(t)*a,b+C(t)*a,b,0,Math.PI*2);x.stroke();

Dec 31 2017 9:32 PM UTC

}// 136/140

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u/Gopello

Wood texture

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Odog8

function u(t) {

m=10;for(a=40;a--;)for(b=40;b--;){i=d=e=0;while(i<m&d*d+e*e<4)d=d*d-e*e+a/m-2,e=2*d*e+b/m-2,i++,x.fillStyle=R(i*25),x.fillRect(a*m,b*m,m,m)}

Dec 14 2019 10:37 PM UTC

}// 140/140

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new & improved #mandelbrot #uncompressed

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caleb

function u(t) {

b=1920/c.offsetWidth;r=Math.random()*b*50;c.onmousemove=(e)=>{X=e.clientX;Y=e.clientY};x.beginPath();x.arc(X*b,Y*b,r,r,2*Math.PI);x.stroke()

Feb 22 2017 3:18 AM UTC

}// 140/140

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veubeke

remix of d/3466 by u/veubeke

function u(t) {

t?x.rotate(.1/Math.log(t)):x.translate(960,540)
x.beginPath(x.fillStyle=R(S(t)*200+155,T=t*4,9,.1))
x.arc(T+190+C(T)*6,0,200,0,7,0)
x.fill()

Nov 7 2017 5:20 PM UTC

}// 140/140

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kurishutofu

function u(t) {

c.width+=0;t*=200;T=m=>m-Math.abs(t%(2*m)-m);x.font='5cm a';x.fillText('📀',T(c.width-180),T(c.height-180)+160)

Mar 10 2020 9:15 AM UTC

}// 110/140

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Insert disc

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katkip

function u(t) {

t||(a=b=1);for(i=40;i--;)x.fillRect(a*100,b*100+i*40,4,4),a=S(a+i)*S(b)+t,b=S(-a+i)+S(-b+i)

Jun 18 2019 9:51 AM UTC

}// 91/140

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Racing #chaos #pattern