Hot dweets by u/BackendForth

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: #ScaryMovies

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BackendForth

remix of d/22806 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(v()*256)
for(k=399;k--;)x.fillRect(i,j,3,3),i+=S(a=(j-540)/50)+(b=(i-960)/450),j+=S(b*9)+a/9

May 18 2021 1:34 PM UTC

}// 140/140

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Locks of hair? Lava flows? Twizzlers?

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BackendForth

remix of d/22819 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(0,0,a=v()*256)
for(k=999;k--;)x.fillRect(i,j,3,3),a=i-960,b=j-540,i+=S(b/a),j+=S(a/b)

May 19 2021 1:47 AM UTC

}// 133/140

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Underground tunnel? Cracked windshield? Going to warp?

u/lars-erik

#fracture

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BackendForth

remix of d/22804 by u/BackendForth

function u(t) {

v=Math.random
i=v()*1920,j=v()*1080,x.fillStyle=R(0,v()*256)
for(k=299;k--;){x.fillRect(i,j,3,3)
i+=S((j-540)/50)
j+=S((i-960)/50)}

May 18 2021 1:47 AM UTC

}// 131/140

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Plant cells?

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BackendForth

remix of d/22820 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(a=v()*256)
for(k=999;k--;)x.fillRect(i,j,3,3),a=(i-960)/50,b=(j-540)/50,i+=1/S(b),j+=1/S(a)

May 19 2021 1:53 AM UTC

}// 139/140

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Flower petals? Wallpaper?

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BackendForth

remix of d/22808 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(v()*256)
for(k=399;k--;){x.fillRect(i,j,3,3)
a=(i-960)/99
b=(j-540)/99
i+=S(a-b)
j+=S(b+a)}

May 18 2021 1:43 PM UTC

}// 139/140

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Pom-poms? Lint? Truffula trees?

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BackendForth

remix of d/22809 by u/BackendForth

function u(t) {

v=Math.random
i=v()*2e3,j=v()*999,x.fillStyle=R(0,a=v()*256)
for(k=99;k--;)x.fillRect(i,j,3,3),a=(i-960)/69,b=(j-540)/69,i+=S(a-b),j+=S(a*b)

May 19 2021 1:40 AM UTC

}// 140/140

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Bamboo? Feathers? A partial fingerprint?

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BackendForth

function u(t) {

v=Math.random
if(v()<.2)i=v()*1920,j=v()*1080
for(k=99;k--;){x.fillRect(i,j,3,3)
i+=(j-540)/70
j+=S((i-960)/70)
}

May 18 2021 1:34 AM UTC

}// 113/140

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Phase space for a pendulum

u/rep_movsd

Try
u/rep_movsd

v=Math.random x.fillStyle='#d964' if(v()<.9)i=v()*1920,j=v()*1080 for(k=99;k--;){x.fillRect(i,j,6*v(),80*v()) i+=(j-540)/(70 +v()*10) j+=S((i-960)/70) }
u/BackendForth

Neat! You can actually drop the "if(v()<.2)" altogether and tweak k=99 for some extra characters

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BackendForth

function u(t) {

v=Math.random
if(!t)m=v(),x.fillRect(0,0,a=1920,b=1080)
x.clearRect(v()*a,v()*b,8,8)
x.font=b+"px Arial"
x.fillText(m>.5?"Yes":"No",99,900)

May 14 2021 1:36 AM UTC

}// 139/140

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Concentrate on a yes or no question, and wait for the stars to align . . .

u/tomxor

Stellar Magic 8 ball

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BackendForth

function u(t) {

c.width|=0
for(i=99;i--;)x.arc(i*(70+t*5),540,(t-i<0?0:t-i)*99,0,7)
x.stroke()

May 6 2021 12:55 PM UTC

}// 78/140

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breaking the sound barrier

u/Xen

nice concept!

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BackendForth

function u(t) {

c.width|=0
f=(p,q)=>p*q+p*p+q*q+p+q
for(i=1920;i-=10;)for(j=1080;j-=10;)x.fillRect(i,j,a=f(i-t*99%1920,j-t*99%1080)/9*999**(-(1+S(t*2))),a)

Apr 30 2021 1:30 PM UTC

}// 139/140

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