Dweets awesomed by u/SMON

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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katkip

remix of d/12510 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=4;for(j=79;j--;)for(i=5;i--;)x.lineTo(960+C(i*1.57+j/(20+C(t+j/29)*5)+t)*200,900+S(i*1.57+j/99+t)*60-j*9);x.stroke();

Feb 24 2019 12:30 PM UTC

}// 140/140

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Twist

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username

remix of d/12397 by u/username

function u(t) {

for(x.fillRect(0,0,i=1521,i);Q=S(--i*i);x.clearRect(751+139*(S(b)*4+S(i+t)*Q),643+150*(C(i*i)-(t&2?T:S)(b+t/i)),9,4))b=i%6+t+i*(t&1)

Feb 17 2019 1:42 PM UTC

}// 132/140

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pavel golf

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Xen

remix of d/12072 by u/leoseccia

function u(t) {

for(c.width|=i=40;i--;)for(j=80;j--;x.fillRect(j*30+S(i/s*4)*250-300,i*30+C(j/s*2)*50-50,99,3))s=9/S(t/2)

Feb 1 2019 4:48 PM UTC

}// 105/140

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katkip

remix of d/12067 by u/Kyoushu

function u(t) {

x.clearRect(0,0,1920,1080);for(i=0;i<=1800;i+=0.9){b=t*C(t+i);x.fillRect(S(b)*(960-i)+960,C(b*2)*(540-i/2)+540,10,10);}

Feb 1 2019 2:03 PM UTC

}// 119/140

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u/SMON

whoaaaaa...that is glorious
u/Kyoushu

I love it, it's like some interdimensional squid breaking through
u/katkip

yep <3

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Iceland_jack

remix of d/9993 by u/SodaPOP

function u(t) {

a=S(t)*6.5
c.width+=0
for(i=0;i<47;i++)
x.font=i*2+'px A',x.fillText("AGATA WE SEE YOU",1/S(a*i/47)+960-i*2,400*C(a*i/47)+630)

Feb 1 2019 1:53 PM UTC

}// 126/140

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SMON

remix of d/12066 by u/thorbear

function u(t) {

t?0:z=y=c=a=1.4,b=1.56,d=-6.56,x.globalAlpha=.01;
for(i=2e4;--i;)n=d*S(a*z)-S(b*y),y=c*C(a*z)+C(b*y),z=n,x.fillRect(z*125+950,y*200+500,4,4)

Feb 1 2019 1:48 PM UTC

}// 140/140

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Okay, now with the original parameters!

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Kyoushu

function u(t) {

x.clearRect(0,0,1920,1080);for(i=0;i<=800;i+=0.9){b=t+i*C(t/100);x.fillRect(S(b)*(960-i)+960,C(b)*(540-i)+540,10,10);}

Feb 1 2019 10:53 AM UTC

}// 118/140

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If you play with variables long enough, something cool will probably happen

u/katkip

True

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elaborate

remix of d/12050 by u/elaborate

function u(t) {

c.width=1920;for(i=0;i<1200;i++){t+=S(i);x.fillRect(1000+T(t)*300,i,5,10)};

Feb 1 2019 10:22 AM UTC

}// 75/140

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u/f8f82804

this ends up with some patterns that are very similar to d/9733!

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SMON

remix of d/12054 by u/23_Skidoo

function u(t) {

c.width|=0
x.globalAlpha=0.3
for(i=1e3;
i--;)
x.fillRect(950*(C(t*4+i*3)+1),520*(C(t*7-i*.77)+1),s=40,s)

Feb 1 2019 9:24 AM UTC

}// 104/140

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SMON

remix of d/12056 by u/SMON

function u(t) {

t?0:z=y=s=2e2,a=0.9,b=2.7,c=0.2,d=-3.2,x.globalAlpha=.01;
for(i=2e3;--i;)z=d*S(a*z)-S(b*y),y=c*C(a*z)+C(b*y),x.fillRect(z*s+900,y*s+500,4,4)

Feb 1 2019 7:34 AM UTC

}// 140/140

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Hm. Closer...

u/thorbear

you need to store the next x,y position update into variables xn,yn then assign after. Or. Just the x.
u/thorbear

made a remix: https://www.dwitter.net/d/12066
u/thorbear

#attractor
u/SMON

@thorbear: oh, really? I assumed the comma operator would take care of that!

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