Dweets awesomed by u/rodrigo.siqueira

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: #Food

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rodrigo.siqueira

remix of d/19448 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=5e3;i--;){var X=S(i*i),Y=C(i-t),Z=X*X+Y*Y*2;x.fillRect(980+300*(Z*S(i+t)),500-150*Y*(S(Z+i)*3)-Y,7,7)}

Jul 19 2020 4:26 PM UTC

}// 123/140

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Symmetry ribbon dance

u/andrea270872

I see! The famous butterfly effect! ;) ;) (sorry for the joke... terrific dwit)

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DaSpider

remix of d/19436 by u/DaSpider

function u(t) {

t?1:document.write(`<p style="word-wrap: break-word;">${eval(`for(a=z=2n*10n**26502n,d=1n;a*=d;)z+=a/=d+++d`)}`)

Jul 19 2020 4:05 PM UTC

}// 112/140

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#Pi galore

u/Irratix

0_0

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xk33

remix of d/19395 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)

for(var i=5e3;i--;x.clearRect(999+999*X/4,1e3-Y*140-440,6,6))

var X=(U=1+C(i+t*1))*S(i*888888),Y=U*S(i-X*2)

Jul 19 2020 5:10 AM UTC

}// 133/140

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tai chi

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taupelink

remix of d/19370 by u/taupelink

function u(t) {

f=(x,y)=>C(x)>S(y*y)?f(y/x,x+1):T(x-y);for(i=k=960;i--;)X=(r=Math.random)()*k,Y=r()*6.3,x.fillRect(k+X*C(Y),540-X*S(Y),f(X&k,Y)>f(Y,k/X),1)

Jul 19 2020 4:18 AM UTC

}// 139/140

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d/19453

u/donbright

the longer i wait the cooler this gets

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katkip

function u(t) {

t||(a=b=1);for(i=999;i--;)x.fillRect(60+a*220,540+b*190,3,3),a+=S(b-a/99-a*b/9-t),b+=C(a+b/99-t*S(t*a)),x.shadowBlur=49,x.shadowColor='lime'

Jul 18 2020 7:26 PM UTC

}// 140/140

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Portals #art

u/donbright

#slowburn
u/rodrigo.siqueira

I have seen this pattern (circular horizontal lines with a stronger single vertical curved line in the middle) emerge in some recursive functions with a parameter increasing it's value ("-t" in yours). I will post here one that I created with this pattern.

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rodrigo.siqueira

remix of d/19447 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=3e3;i--;){var X=S(i*i),Y=C(i+t),Z=X*X+Y*2;x.fillRect(980+220*(Z*S(i/2+t)+C(t)),850-Y*99*Z*(1.3+C(t*6))+S(t)*199,5,5)}

Jul 18 2020 6:13 PM UTC

}// 139/140

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Another #butterfly from my garden

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rodrigo.siqueira

remix of d/19431 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(var i=3e3;i--;)X=S(i*i)*2,Y=C(i+t),Z=-X*X-Y*Y*2,x.clearRect(980+170*(Z*S(i/2+t)/2+S(t)*2),500-Y*60*Z*C(t*4),5,5)

Jul 17 2020 8:03 PM UTC

}// 140/140

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fly #butterfly

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cspray

remix of d/15976 by u/KilledByAPixel

function u(t) {

for(c.width|=k=i=720;--i;)j=i/k+t/2,x.fillText(eval("`\\u{1F9"+(j^63)+"}`"),k-i*C(j)+S(m=k*j)*(r=1e5/i),k+C(m)*r-i*S(j)),x.font=(r>>5)+"em'"

Jul 16 2020 11:14 PM UTC

}// 140/140

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Tasty Tunnel

u/cspray

breaks at the end when j^63 generates bad unicode. Dweet code below loops indefinitely, but takes longer to hit valid emojis:
u/cspray

for(c.width|=k=i=720;--i;)j=i/k+t/2,x.fillText(eval("\\u{1F9"+(j&63)+"}"),k-i*C(j)+S(m=k*j)*(r=1e5/i),k+C(m)*r-i*S(j)),x.font=(r>>5)+"em'"
u/cspray

lost quotes on the paste -- just replace '^' with '&'
u/cspray

#tunnel

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Billedluh

remix of d/19439 by u/cspray

function u(t) {

for(c.width|=k=i=960;z=--i;)x.fillText('🥬',k-z*C(j=i/k+t/4)+S(m=k*j)*(r=1e5/z),540+C(m)*r-z*S(j)),x.font=(r/42*1**2|0).toString()+"em'"

Jul 16 2020 5:12 PM UTC

}// 136/140

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This is a virtual tour of the Hydroponics wing of my Rotational Gravity Space Station

u/Billedluh

#tunnel

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Billedluh

function u(t) {

x.font="3em'",x.fillRect(0,0,w=3e3,w)
for(i=0;i<w;i++)x.fillStyle=R(225-i/5),x.fillText(String.fromCodePoint(i+(t*(r=50)|0)*r),i%r*r,r*i/r)

Jul 16 2020 4:50 PM UTC

}// 139/140

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Show me all the Unicode please

u/tomxor

🍿
u/DaSpider

Too slow for mobile, frame timed out.
u/donbright

works ok on my ten year old laptop though
u/tomxor

Ten year old laptops are the best... goodbye dennard scaling

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