Dweets awesomed by u/blimp

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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DirtyDan

function u(t) {

for(c.width+=i=0;i++<8;x.beginPath())x.lineWidth=66,
x.ellipse(960,540,z=67*i,z*Math.abs(q=C(a=(9-i)*t)),a,0,7)
,x.stroke()

throw q

Mar 22 2018 9:44 PM UTC

}// 132/140

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Just posting so I can save it for later, not quite what I had in mind.

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BalintCsala

remix of d/7410 by u/fujimotos

function u(t) {

for(c.width=i=640;i--;)x.fillRect(0,0,-25,-80,x.setTransform(K=C(z=Math.max(Math.min(H=i/5-t%.6-3,0),-1)),-S(z),S(z),K,200*(H+2),250))

Mar 22 2018 2:54 PM UTC

}// 135/140

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BalintCsala

function u(t) {

c.width=500
for(i=0;i++<9;)x.ellipse(250, 100, 50, 100, i*t/9, 2*Math.PI, false);x.fill("evenodd")

Mar 21 2018 9:22 PM UTC

}// 98/140

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Ellipse thing

u/DirtyDan

Like a kaleidoscope

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yonatan

function u(t) {

for(w=(c.width=h=i=2e3)/50;i--;x.fillRect(X+S(p=t*4-d)*30,Y+C(p)*30,9,9))d=((h/2-(X=w*i%(h+w*8)-w*2))**2+(540-(Y=(i/58|0)*w-w*2))**2)**.5/65

Mar 21 2018 5:41 PM UTC

}// 140/140

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remix of cantelope's https://codegolf.tk/a/189

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New_Core

function u(t) {

c.width|=q=99;for(a=i=310;i--;)x.rect(i%24*q-(a*S(t)+a)%198,i%26*q-a*C(t)+a,q,q);x.arc(a*S(t)+960,a*C(t)+540,200,0,7);x.fill('evenodd')

Mar 20 2018 6:08 PM UTC

}// 135/140

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u/13thptr

#checkerboard

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jylikangas

function u(t) {

for(X=c.width=450;X--;x[f](X%50*5+t%23*9,0,3,X))x[f='fillRect'](X-X%5*25,99+S(X*5)*5-(h=9*S(X%64/16))+(X>>6)*25%50,1,h*2)&x[f](X*2,50+h,9,1)

Mar 17 2018 8:47 AM UTC

}// 140/140

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Scanimation Fish

Show more comments…
u/Lynext

Genius!
u/magna

If some technique exists, there's a dweet version of it.
u/sigveseb

this is so impressive :)
u/sigveseb

https://www.youtube.com/watch?v=LCIsIfEOEI8 some more inspiration for other dweets perhaps!
u/iverjo

#fish
u/aleamb

#scanimation
u/pythech

blew my brains out
u/rep_movsd

#illusion
u/rep_movsd

#underrated
u/vain

this blow me away! How...? O.o

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Batrachus

function u(t) {

r=a=>Math.floor(a*Math.random())
w=120
for(i=0;i<w;i++){x.fillStyle=R(0,r(255),r(255))
b=r(w/2)
x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c)}

Mar 14 2018 6:58 PM UTC

}// 138/140

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u/magna

120: r=a=>a*Math.random()|0;for(i=w=120;i--;x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c))x.fillStyle=R(0,r(255),r(255)),b=r(w/2)

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blimp

function u(t) {

c.width2=V=500,H=25000
for(i=125;i--;x.lineTo(V*2+(S(a*5)+S(t*2))/Z*V*15.5,(i/10)/Z*H*3))Z=S(t*5)+C(a=i+t*2)+10
x.stroke()

Mar 12 2018 2:20 PM UTC

}// 122/140

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blimp

function u(t) {

d=900
for(c.width+=i=0;i<d;){X=S(i)
Z=C(i)
B=(Z*C(t+1.5)+X*S(t+1.5))/d*4.8
x.fillRect(d-(X*C(t)+Z*S(t+5))/B*2,d+C(5*i++)/B,.09/B,0.02/B)}

Mar 12 2018 8:58 AM UTC

}// 137/140

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Xen

function u(t) {

x.beginPath();x.fillStyle=`hsla(${C(t)*1e3},99%,30%,.1)`;x.fill(x.arc(1e3+T(t*9)*t*t%2e3,500+S(t)*500,99,0,7))

Mar 9 2018 9:52 PM UTC

}// 110/140

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shoutz 2 u/sawaxon

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