Dweets awesomed by u/argo78

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: #Opposites

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Atti

function u(t) {

x.fillStyle="green";for(i=1085;i--;){d=i/3+80*T(i%300/260);x.fillRect(950-d,i,2*d,1)}

Dec 22 2016 5:15 PM UTC

}// 85/140

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Basic Christmas tree! :)

u/Atti

A more elaborate version, that's currently too long: for(i=1085;i--;){x.beginPath();x.fillStyle=i<5?i%2?"red":"white":"green";d=i/3+80*T(i%300/260);i>5?x.rect(950-d,i,2*d,1):x.arc(900+i*S(i)*100,400+i*200,50,0,6);x.fill()}
u/Atti

Any help is appreciated in building an epic Dwistmas tree!
u/iverjo

Nice :) I made one last year, using a very different technique: https://www.dwitter.net/d/98
u/Atti

Cool! :)

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BriSeven

remix of d/526 by u/BriSeven

function u(t) {

for(i=16;i--;)x.fillStyle=R((d=i*S(t)*7+119*i)%256,d/1.4%256,d/7%256,.1),x.fillRect(120*i+30*S(13*t%i)+50,500*C(t/13)+500,30*S(t/i*3)+10,40)

Dec 22 2016 1:27 AM UTC

}// 140/140

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a slight variation that happens to look IMHO a fair bit more pleasant and glassy.

u/iverjo

Candy land! :D

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New_Core

function u(t) {

c.width=500;for(i=40;i--;)x.beginPath(),x.arc(250+30*S(a=t+i%2),125+30*C(a*.8),21*(i%19),0,7),x.lineWidth=17,x.strokeStyle=R(i*8),x.stroke()

Oct 9 2016 3:06 PM UTC

}// 140/140

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u/iverjo

Rad!

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argo78

remix of d/478 by u/argo78

function u(t) {

p=128;for(i=512;i--;){q=p*C(t*16+i/24);x.fillStyle=R(256,i%p-q,p+q,.05);x.fillRect(80*i/16-40,i%16*80,60,60)}

Oct 8 2016 8:25 PM UTC

}// 109/140

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lionleaf

function u(t) {

c.width=255;for(i=128;i--;)for(j=75;j--;)x.fillStyle=R(i,j),x.fillRect(i*2+S(t*i*4),j*2+S(t*j*4),2,2)

Oct 6 2016 6:45 PM UTC

}// 101/140

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argo78

function u(t) {

p=128;q=p*C (t/2);x.fillStyle=R(p+q,20,p-q,.05);x.fillRect((t*660)%2e3-80,500-500*S(t*3),80,80)

Oct 2 2016 9:01 PM UTC

}// 95/140

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argo78

function u(t) {

c.width=2E3;x.fillStyle="#04f";for(i=4;i--;)x.fillRect(600+i*200+S(t*5)*300,200,150*C(t*i),320+S(t)*300)

Oct 1 2016 11:14 AM UTC

}// 105/140

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3bl3gamer

remix of d/464 by u/iverjo

function u(t) {

for(j=1e3;j--;){a=b=0;for(k=35;k--&&(q=a*a+b*b-4)<0;a=c,p=q)c=a*a-b*b+t/2e8-1,b=Math.abs(2*a*b)+j/8e9-1;x.fillRect(t*60,j,1,(k+p/(q-p))/15)}

Sep 30 2016 10:24 AM UTC

}// 140/140

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smoothed version of https://dweet.dwitter.net/id/464

u/iverjo

Looks a bit bloomier

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iverjo

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e11-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(i,j,1,S(k/9))}

Sep 28 2016 1:14 PM UTC

}// 134/140

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Burning ship fractal, zoomed in on an interesting point

Show more comments…
u/iverjo

128 characters: for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

127 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

126 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}
u/donbright

speechless!!
u/iverjo

#fractal
u/iverjo

#burningship

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pat

function u(t) {

p=Math.floor(Math.random()*3);a=t>1?p==0?(a+400)/2:p==1?(a+1400)/2:(a+900)/2:900;b=t>1?p==2?(b+140)/2:(b+1000)/2:570;x.fillRect(a,b,5,5);

Sep 27 2016 10:48 PM UTC

}// 137/140

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u/iverjo

Nice approach!

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