Top dweets by u/Exca

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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Exca

function u(t) {

c.width|=l=Math.hypot
for(i=3e3;i--;){q=i%99,w=i/99,a=S(t)*29+70,s=C(t)*55,b=l(q-a,w-s)+l(q-a/3,w-s/5),n=S(b)*19,x.fillRect(q*20,w*36,n,n)}

Jan 4 2018 7:15 AM UTC

}// 139/140

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Exca

function u(t) {

for(i=0;i<5184;i++){q=i%96,w=i/96|0
y=S(q*C(t)/5+w*S(t)/6)*t*9
o=S(q/7+w/4)*t*9
x.fillStyle=R(y^o,y|o,y+o+199)
x.fillRect(q*20,w*20,20,20)}

Aug 31 2018 12:12 PM UTC

}// 139/140

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Fixed previous one. Wait for a few seconds for effect to start.

u/magna

#waitforit

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Exca

function u(t) {

c.width|=0,o=980,p=540
w=s=>x.lineTo(C(q=i+s+t)*s*o+o,C(i+q)*s*p+p)
for(i=20;i--;){x.moveTo(o,p)
for(j=18;j--;) w((j-9)/9*S(t+i))}x.fill()

Jan 6 2018 7:38 PM UTC

}// 138/140

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Exca

remix of d/5392 by u/Exca

function u(t) {

c.width|=q=(w,o)=>{b=S(w/10+t)*7+960+o,v=180+w*15
x.fillStyle=R(0,0,0,w/52)
x.fillRect(b,v,50,1080-v);}
for(j=54;j--;)q(j,S(t+j*.05)*900)

Jan 3 2018 6:12 PM UTC

}// 139/140

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u/CliffJonesJr

Mesmerizing.

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Exca

function u(t) {

c.width|=t/=25
x.fillStyle=R(0,0,0,.1)
q=(w,o)=>{b=S(w/10+t)*7+960+o,v=180+w*10
x.fillRect(b,v,w,1080-v);}
for(j=54;j--;)q(j,S(t*j)*900)

Jan 3 2018 6:08 PM UTC

}// 138/140

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u/sigveseb

kefrens bars! (alcatraz bars? :D )
u/Exca

Indeed, with a pendulum swing
u/Exca

Had a version with ropes coming from top and each of the bars as squares. Couldn't get that one under 156 characters though.

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