Dweets by u/andrea270872

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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andrea270872

function u(t) {

c.width|=B=1/(~~t%40+1.5)
for(A=[],i=40;i-->0;)A.push(B*2e3,(B=2*B%1)*1e3)
x.fillStyle='#A'+(9*~~t%40+10)
x.fill(new Path2D(`M${A}`))

Feb 16 2020 8:48 PM UTC

}// 133/140

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Space message from the 80s

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andrea270872

function u(t) {

c.width|=A=[]
x.strokeStyle='#911'
x.lineWidth=420
for(i=40;i-->0;)A.push(i+9-t%9,i*t%9)
x.stroke(new Path2D('M150,250 l'+A+'M100,700 l'+A))

Feb 16 2020 3:04 PM UTC

}// 140/140

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Bacon experiments (think of "sizzling" sounds...)

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andrea270872

remix of d/17635 by u/andrea270872

function u(t) {

c.width|=K=130
for(j=77;j-->0;){A=[];T=(t/j)%3
for(i=9;i-->0;)A.push(K+j%13*K+C(i/T)*49,K+~~(j/13)*K+S(i/T)*49)
x.stroke(new Path2D('M'+A))}

Feb 15 2020 5:22 PM UTC

}// 140/140

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Cleaner geometries

Show more comments…
u/andrea270872

#waitForIt
u/DataMeta

#waitforit :)
u/DataMeta

Oh huh, it resolves as the same tag, TIL
u/andrea270872

thanks :)
u/bandaloo

does the >0 at the end of j-- and i-- do anything? when j reaches zero it's falsey anyways
u/bandaloo

i should also say this is really beautiful
u/andrea270872

good point Bandaloo. Thanks

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andrea270872

remix of d/17633 by u/andrea270872

function u(t) {

c.width|=K=190
for(j=44;j-->0;){A=[];T=(t/j)%3
for(i=50;i-->0;)A.push(K+j%9*K+C(i/T)*99,K+~~(j/9)*K+S(i/T)*99)
x.stroke(new Path2D('M'+A))}

Feb 15 2020 5:05 PM UTC

}// 139/140

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more shapes, still very fast :)

u/DataMeta

Cool!

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andrea270872

function u(t) {

c.width|=K=230
for(j=28;j-->0;){A=[];T=(t/j)%3
for(i=50;i-->0;)A.push(K+j%7*K+C(i/T)*99,K+~~(j/7)*K+S(i/T)*99)
x.stroke(new Path2D('M'+A))}

Feb 15 2020 5:00 PM UTC

}// 139/140

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Geometric animations using Path2D

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andrea270872

function u(t) {

c.width|=0
x.lineWidth=4
for(i=8;--i>0;x.fillStyle='#7'+i*9)A=[99,99+120*i,1/i*t%(i*2)*99,99],x.fillRect(...A,A[2]=1600),x.strokeRect(...A)

Feb 12 2020 10:57 PM UTC

}// 139/140

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"Getting there..." procrastination-style

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andrea270872

function u(t) {

eval(unescape(escape(`挮睩摴栽㠰ぼ砮扥杩湐慴栨伽嬲㜬㈹ⰲ〬㈳ⰲ㤬㌸ⰳ㤬㐰ⰴ㉝⹳潲琨渽㹓⡮⩾繴⤩⤻景爨椠楮⁏⥸⹬楮敔漨堽佛楝┹⨹㤫吨椩⨹ⱙ㵾繏孩崪㤫吨椩⨹⤬砮晩汬剥捴⡘ⴴⱙⴴⰹⰹ⤻砮獴牯步⠩`).replace(/u(..)/g,'$1%')))

Feb 12 2020 7:01 PM UTC

}// 133/140

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(fixed) sorry.

u/andrea270872

Constellation generator #compressed

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andrea270872

remix of d/17573 by u/andrea270872

function u(t) {

T=t%12
T>2?0:c.width|=0
x.font=(33+T**2)+'px A'
x.fillText('🐤',900+3*S(T*240)*T**3,600+2*C(T*221)*T**3)

Feb 12 2020 12:07 PM UTC

}// 104/140

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golfed a bit more :>

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andrea270872

function u(t) {

T=t%15
T>2?0:c.width|=0
x.font=(33+T**1.6)+'px A'
x.translate(3*S(T*240)*T**3,2*C(T*299)*T**3)
x.fillText('🐤',900,600)

Feb 11 2020 9:46 PM UTC

}// 118/140

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Chick-xplosion! #growth

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andrea270872

remix of d/17568 by u/andrea270872

function u(t) {

c.width=99
d=x.getImageData(0,0,40,30)
D=d.data
for(i=D.length;i-->0;D[K+2]=255)D[K=i*4+1]=255*S(t+i**2)
x.putImageData(d,24,9)

Feb 11 2020 7:28 PM UTC

}// 127/140

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paint by colors 2 - kryptonite

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