Dweets 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/18323 by u/pavel

function u(t) {

for(i=2e3,f=(X,Y,n=89)=>X<9?f(X*X-Y*Y-.8,2*X*Y+.2,n+2):x.fillStyle=`hsl(${n*2} 90%${n/2}%`;i--;x.fillRect(i,t*90,1,900))f(i/490-2,1-t/6)

Apr 19 2020 9:13 PM UTC

}// 136/140

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Color #Julia Set #fractal purple blue rays

u/pavel

Broken on Safari because of the missing space in the hsl
u/katkip

satisfying to watch
u/rodrigo.siqueira

Here is a version (with other colors) working on Safari: https://www.dwitter.net/d/18352

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rodrigo.siqueira

remix of d/18323 by u/pavel

function u(t) {

for(i=2e3,f=(X,Y,n=69)=>X<i?f(X*X-Y*Y-.8,2*X*Y+.2,n+1):x.fillStyle=`hsl(${n*8} 90%${S(n/6)*n}%`;i--;x.fillRect(i,t*60,1,i))f(i/490-2,1-t/9)

Apr 19 2020 6:36 PM UTC

}// 139/140

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Color lines from #Julia #fractal using "X<i".

u/magna

Sweet!
u/sigveseb

Rules!

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rodrigo.siqueira

remix of d/18323 by u/pavel

function u(t) {

for(let i=2e3,f=(x,y,n=256)=>x*y<n?f(x*x-y*y-.6,2*x*y+.5,n-1):1-n/256;i--;x.fillRect(i,t*180,1,3))x.fillStyle=R(f(i/490-2,1-t/3)*i,0,i/14)

Apr 18 2020 6:34 PM UTC

}// 138/140

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Color #julia set for c = -0.6 + 0.5i #fractal

u/sigveseb

Nice colors

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rodrigo.siqueira

function u(t) {

for(i=s=540;i--;x.fillRect(s-A*s,B*s+s,j/150,2))for(j=s,X=A=C((i/29)*T(t))*t-2,Y=B=i/s*2-1;X*j--;)X=X*X-Y*Y+(Y=2*X*Y+B,A)

Apr 16 2020 2:34 AM UTC

}// 121/140

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Tiny Mandelbrot over geometric patterns #Mandelbrot #Fractal

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rodrigo.siqueira

remix of d/18197 by u/KilledByAPixel

function u(t) {

c.style.filter=`sepia()invert(`
for(Y=X=j=1e4;j--;j%99||(T=Y=S(j)*2,R=X=C(t*j)))Y=Y*Y-X*X+(X=2*X*Y+R,T),x.fillRect(X*450+960,Y*450+700,.5,1)

Apr 15 2020 8:05 PM UTC

}// 140/140

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Lines of #Buddhabrot #mandelbrot #fractal

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rodrigo.siqueira

remix of d/18262 by u/KilledByAPixel

function u(t) {

c.style.filter=`sepia()invert(`
for(P=j=2e4;j--;j%99||(T=P=S(t+j)*2,R=C=T*2))
P=P*P-C*C+(C=2*C*P+R,T),x.fillRect(C*450+960,P*450+700,1,1)

Apr 15 2020 12:59 AM UTC

}// 137/140

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Particle collision inside a hadron collider #particles

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rodrigo.siqueira

remix of d/17524 by u/DaSpider

function u(t) {

c.width|=w=n=44
for(e=[i=w*w];i--;S=9)for(;S--;n+=T[i%w+i+S*w]|0,e[i]=n%3,x.fillRect(i%w*w,i,w*T[i],w));T=e

Apr 12 2020 9:59 PM UTC

}// 107/140

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Primordial soup #gameoflife (with changed rules to fit 107 bytes). Homage to John Conway (1937-2020), the creator of Game of Life and cellular automata, seed of ideas for Artificial Life, emergence, self-organization and complexity.

u/tomxor

Farewell John Conway, not his favorite discovery, none the less responsible for generations of programmers enjoyment.

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rodrigo.siqueira

remix of d/17637 by u/rodrigo.siqueira

function u(t) {

c.style='filter:invert('
for(A=a=b=0,i=1e4*(t<4);i--;)a+=2*(S(t*i**7)<0)-a/3+b*S(a),b+=C(A)/2+.3-S(b/3),A=a,x.fillRect(a*440-400,b*990,.4,1)

Apr 10 2020 9:22 PM UTC

}// 140/140

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Ethereal Figures #art

u/KilledByAPixel

👍
u/rep_movsd

#underrated

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rodrigo.siqueira

remix of d/18139 by u/cantelope

function u(t) {

for(c.width|=j=37;j--;)for(w=i=133;i--;)[j,j+1].map(k=>x.lineTo(960+S(p=i/7+t)*k/(Z=w+C(p)*k*3.4)*2e3,(58-k)**3/Z+j))
x.stroke()

Apr 6 2020 12:08 PM UTC

}// 128/140

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128 bytes #vortex #d3 #uncompressed

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rodrigo.siqueira

remix of d/18142 by u/pavel

function u(t) {

for(c.width=i=620;i--;x.lineTo(300*(z+p*b)/z,300*(2+q*S(a*3+t*3))/z))q=i/4&1||-1,p=3-q*S(a=b=i/99),z=4+p*S(b-=t%8);x.stroke()

Apr 5 2020 5:37 PM UTC

}// 125/140

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DNA double helix #spiral #dna

dwitter.net | rodrigo.siqueira (17930)