New #glitch dweets

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

} // 112/140

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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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magna

function u(t) {

r=_=>Math.random()*10|0;eval('for(c.width|=i=9;i--;)x.fillRect(400+i*100+S(t)*300,400,50,200)'.replace(r(),r()))

Jun 27, 2019 10:18 PM

}// 112/140

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#default #glitch

u/donbright

cool idea
u/DataMeta

neat

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metamero

function u(t) {

x
in
t

May 27, 2019 1:32 PM

}// 6/140

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shortest dwitter #glitch

u/metamero

6B is the #record for the shortest animated dweet (with several variations as in d/8916 and comments)
u/katkip

win

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KilledByAPixel

function u(t) {

r=Math.random
x.globalCompositeOperation='difference'
x.fillStyle=`hsl(${t*1e3},99%,50%`
x.fillRect(2e3*r()-199,1e3*r()-199,499*r(),499*r())

May 9, 2019 7:51 PM

}// 140/140

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Glitched out video compression

u/DataMeta

#glitch

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vinca

function u(t) {

for(c.width=150,f=(i,f,t,X)=>1/((0|i-t)**2+(f-X)**2+99*T(t))*4e3,i=11250;i--;)x.fillRect(X=i/75,Y=i%75,f(X,Y,-5,80)+f(X,Y,170-99*S(t),99),1)

Apr 3, 2019 9:25 AM

}// 140/140

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u/magna

#glitch
u/magna

#oldfilm

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andy

function u(t) {

for(c.width|=d=e=0,f=1e3;f--;h=d,d=e-(!!d|d>>31)*Math.abs(C(z=t/9)*d-S(z))**.5,e=C(z)+4-h,x.fillRect(d*50+800,e*50+400,t&3?5:50,t&1?3:50));

Mar 30, 2019 10:29 PM

}// 139/140

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u/magna

#glitch

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rnbw

function u(t) {

for(c.width^=i=0;i++<39;x.fill()){x.fillStyle=`hsl(${Math.random()*60},99%,40%,8%)`;x.arc(C(t/4-(i&t*5))*460+960,S(i&t*4)*460+540,0,0,0)}

Mar 29, 2019 2:23 PM

}// 137/140

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chthonic 🔥

u/katkip

#glitch
u/DataMeta

I like the choice of coloration
u/DataMeta

Luckily this SCP seems contained

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rsrsrs

remix of d/6711 by u/nickd3000

function u(t) {

for(i=0;i<32;i++)g=100*t*(i%3+1),x.fillStyle='hsl('+g+',99%,55%)',x.fillRect(80*i,5,80,20);x.drawImage(c,-5,4,1930-T(t*t*4)*5,1080+5);

Mar 19, 2019 1:25 AM

}// 134/140

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glitch

u/magna

#glitch

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saon

remix of d/10377 by u/DaxterSpeed

function u(t) {

c.width=500
v=(a,b=270,g=0,r=80)=>r>1&&x.fillRect(a+=r*g,b-=r*C(g),2*T(g),5*C(g))|v(a,b,g-1+C(t),r*=.7)|v(a,b,g+.5+S(t),r)
v(250)

Feb 1, 2019 1:28 AM

}// 129/140

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Changed the animation, added rectangle effects

u/f8f82804

#glitch #fractal

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f8f82804

remix of d/11936 by u/f8f82804

function u(t) {

for(x[f='fillRect'](i=-384,i,s=3e3,s);i++;x[f](960-w*4+T(t^i),-i*4,w*8,4))w=i&256?(-i*(i+256))**.5:s,x.fillStyle=i?`hsl(${i/3} 99% 55%)`:R()

Jan 25, 2019 6:20 PM

}// 140/140

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#minimal #outrun #glitch #sunset -- remixed and heavily golfed for a black background

u/f8f82804

should work correctly in browsers such as #safari and #edge that don't support shortened hsl(xx yy%zz% color strings
u/pavel

FYI you can drop the closing ) in the hsl, just not the s and l separator.
u/f8f82804

u/pavel: IIRC #edge requires the closing paren -- see https://github.com/lionleaf/dwitter/issues/3… (which hilariously enough references one of my very first dweets) and d/9170
u/f8f82804

oooof that link got mangled -- https://github.com/lionleaf/dwitter/issues/3…

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f8f82804

remix of d/11919 by u/mxfh

function u(t) {

for(c.width|=i=384;i--;x.fillRect(960-w/2+e,4*i,w+e,4)){y=i/80-2;w=y>.7?3e3:(1-y*y)**.5*640;e=T(t/9+i*w);x.fillStyle=`hsl(${-y}rad 99%50%)`}

Jan 24, 2019 8:12 PM

}// 140/140

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#minimal #outrun #glitch #sunset

u/f8f82804

d/11931
u/pavel

Omitting the space in 99%50% does not work in Safari, everything is black.
u/f8f82804

yeah safari stinks
u/f8f82804

try "for(c.width|=i=384;i--;x.fillRect(960-w/2+e,4*i,w+e,4))y=i/80-2,w=y>.7?3e3:(1-y*y)**.5*640,e=T(t/9+i*w),x.fillStyle=hsl(${-y}rad 99% 50%)" which should work and is still <140
u/bekfast2390

easrdfghj

dwitter.net | #glitch