Top 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|=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

function u(t) {

c.width|=0
x.fillStyle=`hsl(${S(t)*60%60},99%,50%,.7`
for(j=9;j--;)for(i=24;i-=2;)x.fillRect(99+(j*3+C((j+i+t)*9))*60,1e3-i*40,288-i*12,80)

Mar 29 2019 1:22 PM UTC

}// 139/140

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fire tentacles

u/joeytwiddle

#fire simple idea nice effect
u/rodrigo.siqueira

#tentacle

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andrea270872

function u(t) {

c.width|=i=0
with(x)for(;i++<15;fillText("🚗",2e3-i*t*97%2e3,i*70),font=i**.9+"em'")fillRect(0,i**.9*99,2e3,i**.6)

Mar 17 2019 3:39 PM UTC

}// 113/140

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infinite traffic

u/andrea270872

(after suggestion from #vinca :> )
u/f8f82804

#parallax

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andrea270872

function u(t) {

I=t*3320%2e3;J=t*94%1e3
i=A=I/2e3;B=J/1e3
for(;i++<13;[A,B]=[A*A-B*B+.3,2*A*B],C=A*A+B*B)
x.fillStyle=R(C*200,0,0,.3)
x.fillRect(I,J,i*=4,i)

Mar 7 2019 8:26 PM UTC

}// 140/140

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Ghost of Julia ver5 (in red)

u/f8f82804

#fractal
u/13thptr

weird rendering:I love it :)
u/andrea270872

thanks... I had to cut a lot of corners to even get something looking like that :D
u/13thptr

#scanline
u/Xen

love it!

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andrea270872

function u(t) {

c.width|=f=n=>n>1?x.fillRect(n,n,n,n)+f(n-(2+t%5)**2):0
f(256)

Jun 7 2021 1:19 PM UTC

}// 62/140

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simple recursion. A flaming square

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andrea270872

remix of d/22752 by u/andrea270872

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👁🐮𝀊𡠽𫠽🡮🀳𝰦𙡸𛡴𬡡𫡳𩡯𬡭𚁃𚁁𚐫𛠱𛁓𚁁𚐬𛑓𚁁𚐬𠰨𠐩𛀰𛀰𚑼𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀹𛀹𚑼𡠨𫠫𜐩𒡦𫱲𚁩🐳𝰻𪐭𛐻𮀮𬱥𭁔𬡡𫡳𩡯𬡭𚀴𛀰𛀰𛀴𛀱𩐳𚱃𚁴𛰹𚱩𚡁𚐪𞐰𜀬𝠰𜀫𤰨𭀯𞐭𪐩𚠵𜀰𚐩𮀮𩡩𫁬𤱴𮑬𩐽𘠣𠑁𠰢𚱩𙐹𛁆𚁩𚐠`.replace(/u../g,'')))

May 12 2021 7:01 AM UTC

}// 140/140

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even more #seashell or perhaps plankton (?)

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andrea270872

function u(t) {

x.globalCompositeOperation='xor'
f=(n,a,b)=>n?f(n-1,a,a+(b-a)*.4)+f(n-1,a+(b-a)*.5,b):x.fillRect(a,t%8*180,b-a,(t/8)%8)
f(~~t%8,0,1900)

Jan 21 2021 12:10 PM UTC

}// 135/140

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Cantor's monoliths

u/Xen

nce

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andrea270872

function u(t) {

x.strokeStyle='#2615'
x.lineWidth=.1
for(i=480;i-->0;x.beginPath()){x.arc(i%30*65+C(t),20+i*2.2,((t+i**.33)%6)**2,0,7);x.stroke()}

Feb 10 2020 7:29 PM UTC

}// 130/140

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Petri Dish growth v0.6

u/andrea270872

Wrong caption... :( Petri Dish growth 0.7 (green alga wall)
u/Xen

#growth nice style!

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andrea270872

function u(t) {

x.strokeStyle='#531'
x.lineWidth=C(t*7)
for(i=12;i-->0;x.beginPath()){x.arc(i*170+13*C(t),i%3*460,((t+i)%4)**4,0,7);x.stroke()}

Feb 10 2020 6:53 PM UTC

}// 127/140

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Petri Dish growth v0.6

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