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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chatmasta

function u(t) {

c.width=1920;for(i=0;i<100;i++) {z=i+S(t);s=S(t);for (j=s*z;j<s*i+100;j+=new Date%s+2)x.fillRect(z*100+s*T(t),j*z*T(t),i%j+i,j%i)}

Oct 13 2018 1:31 PM UTC

}// 130/140

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#first

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cantelope

remix of d/2449 by u/cantelope

function u(t) {

x.globalAlpha=.1
x.fillRect(0,0,(w=960)*2,w*2)
for(i=99;i--;p=.2*i+t,x.clearRect(w+1/(Z=3+C(p))*(i-50)*w/20,540+S(p)/Z*w,s=199/(Z*Z),s));

Apr 9 2017 2:07 AM UTC

}// 137/140

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u/donbright

wow
u/magna

I love this series.
u/magna

Golfed down by 5 characters: https://www.dwitter.net/d/2454
u/lionleaf

#perspective #spiral

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katkip

remix of d/11531 by u/pavel

function u(t) {

for(c.width=480,x.rotate(X=Y=q=.785),r=6;r--;X+=f(0),Y+=f(2))R=1<<r,x.arc(X+265-R,Y-74-R,R,0,7),f=n=>R*Math.atan(16*S(t-(n-r)*q));x.stroke()

Dec 23 2018 10:57 AM UTC

}// 140/140

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Planets

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cantelope

function u(t) {

t?w=c.width=n:n=1
onmousemove=e=>n=e.pageY
for(i=6;i--;x.lineTo(w/2+(Z=1/(2+C(p=1.257*i*2+t)))*S(p)*w/2,Z*w/2-w/20),x.stroke());

Apr 9 2017 10:25 PM UTC

}// 128/140

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per donbright's suggestion... :D

u/cantelope

mouse Y position controls resolution
u/donbright

lol surely there is more we can do
u/tapgiles

Cool! Some of the lines seem thicker, and some seem fainter. Is there an overdrawing issue, perhaps?

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Xen

remix of d/20026 by u/solendil

function u(t) {

x.fillStyle=`hsl(${t*99},99%,${S(t)*99}%)`
x.fillRect(!x.resetTransform(),0,3e3,9)
x.translate(w=640,w)
x.rotate(t/3)
x.drawImage(c,-w*2,-w)

Sep 22 2020 4:35 PM UTC

}// 140/140

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had to have a play

u/taupelink

whooaaoooaaoooaa!

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username

remix of d/16041 by u/username

function u(t) {

for(c.width|=_=9;_--;)for($=17;$--;x.fillText((_+$+s^0)%1e2,($-s%1)*120-9,99+_*120))x.font=`7em'`,s=(t+C(t)**2)*9

Oct 13 2019 7:18 AM UTC

}// 113/140

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Numbers

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jnalezny

function u(t) {

c.width=1920; 
for(i=0;i<9;i++){
 x.fillRect(400+i*100+S(t)*300, 400, 50, 200) 
 x.fillRect(400+i*100+C(t)*300, 600, 50, 200)
}

Feb 23 2017 8:35 PM UTC

}// 127/140

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Xen

function u(t) {

for(c.width|=i=9;i--;x.strokeRect(400+i*100+C(t)*300,400,50,200))x.fillRect(400+i*100+C(t)*300,400+T(i+t*i)*(t*9%199),50,200)

Sep 19 2018 4:21 PM UTC

}// 125/140

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u/f8f82804

Nice! #default

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Xen

remix of d/33665 by u/Xen

function u(t) {

with(x)fill(arc(950,W=550,W/t,!beginPath(fillStyle=t<7?R(z=W-W/t,Z=t<5&&t>2?z:0.1,Z,Z):"white"),9)),t<7?fillRect(675,525,W,49):0

Apr 28 2025 3:04 PM UTC

}// 128/140

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Improved and golfed to fit #pokemon

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New_Core

function u(t) {

f=(a,b)=>9*S(t/a)%.83*60+b*50-200
for(c.width|=p=i=729;i--;x.fillRect(960+f(9,i%9)*Z,540+f(4,~~(i%81/9))*Z,Z,Z))Z=p/(~~(i/81)*60+t%1*60)

Sep 18 2023 7:43 PM UTC

}// 136/140

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Cube of 9