Dweets awesomed by u/xem

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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jylikangas

function u(t) {

with(x)for(i=16,c.width=198;i--;stroke()&drawImage(c,globalAlpha=.1,i))lineTo(99+S(t+=(7-i)%2/.64)*99/(Z=(t<6)+1+C(t)),49+((i%4/2<<6)-25)/Z)

Mar 28 2018 5:24 AM UTC

}// 140/140

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White room traps you!

Show more comments…
u/aemkei

Stunning. As always.
u/joeytwiddle

Whoa! 😮
u/zanella

There's. A. Reflection. In. The. Floor.
u/loni_art

jesus!
u/iverjo

Well done!
u/DirtyDan

Remixed: d/7500
u/DirtyDan

whoops, wrong dweet
u/DirtyDan

Well this was a train wreck, wrong link too
u/jylikangas

http://jsriffs.blogspot.fi/2018/04/making-of…
u/joeytwiddle

#renderer #reflection #raytrace (or looks like it anyway)

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xem

remix of d/7490 by u/aemkei

function u(t) {

c.width^=0;x.font="90px arial";for(i=0;i<90;i++)for(j=0;j<90;j++)x.fillText([..."◜◝◟◞"][~~(Math.random()*4)],i*30,j*30)

Mar 27 2018 8:34 PM UTC

}// 119/140

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u/robbyg

Golfed down to 108 chars: https://www.dwitter.net/d/7507

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xem

remix of d/7471 by u/jylikangas

function u(t) {

A=r=>x.fill(x.arc(960+R*C(t),540+R*S(t),r,0,7))
f%2&&(t+=3)
x.beginPath(A(R=f%2?190:187))
x.fillStyle='#'+(f++%2?"fff":111)
A(50)}{f=0

Mar 26 2018 6:52 AM UTC

}// 134/140

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u/username

ah it is just shy from actual yin yang

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jylikangas

function u(t) {

A=r=>x.fill(x.arc(960+R*C(t),540+R*S(t),r,0,7))
f%2&&(t+=3)
x.beginPath(A(R=180))
x.fillStyle='#'+(f++%2?999:111)
A(45)}{f=0

Mar 26 2018 5:01 AM UTC

}// 124/140

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Animated Yin Yang

u/jylikangas

t+=f%2*3 to save 3 more bytes
u/jylikangas

R=180+f%2*3 to add an outline
u/joeytwiddle

#yinyang

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xem

remix of d/7401 by u/xem

function u(t) {

c.width=innerWidth;c.onmousemove=e=>B.push([e.x-X,e.y-Y,X=e.x,Y=e.y])
B.map(i=>x.fillText("⚫",i[2]+=i[0],i[3]+=i[1]))};{B=[X=Y=0]

Mar 21 2018 9:11 PM UTC

}// 129/140

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u/yonatan

c.width=innerWidth is a great idea
u/xem

Move mouse to throw projectiles :)
u/xem

(c.width=innerWidth makes it work in fullscreen and not-fullscreen. Thanks to Balint Csala for the trick)
u/joeytwiddle

#interactive

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xem

remix of d/7400 by u/xem

function u(t) {

c.width^=c.onmousemove=e=>B.push([e.x-X,e.y-Y,X=e.x,Y=e.y])
B.map(i=>(x.beginPath(),x.fillText("⚫",i[2]+=i[0],i[3]+=i[1])))};{B=[X=Y=0]

Mar 21 2018 9:04 PM UTC

}// 135/140

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xem

remix of d/7398 by u/xem

function u(t) {

c.width^=c.onmousemove=e=>B.push([e.x-X,e.y-Y,X=e.x,Y=e.y])
B.map(i=>(x.beginPath(),x.fillRect(i[2]+=i[0],i[3]+=i[1],9,9)))};{B=[X=Y=0]

Mar 21 2018 9:02 PM UTC

}// 135/140

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xem

function u(t) {

c.width^=0
if(!t){B=[],X=Y=0}
c.onmousemove=e=>B.push([e.x-X,e.y-Y,X=e.x,Y=e.y])
for(i of B)x.arc(i[2]+=i[0],i[3]+=i[1],9,0,7)
x.stroke()

Mar 21 2018 8:26 PM UTC

}// 137/140

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The mouse throws projectiles (works better in fullscreen)

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jylikangas

function u(t) {

for(c.width=Y=W=256,t*=w=99;Y--;x.fillStyle=R(t%w,Y,w))x.fillRect(w-w/(z=Y/9)+S((v=Y+t)/w)*z*7+(v&8&&w)/z,W/z+Y*C(v/50),v/8%W>9&&W/z,Y%60/z)

Feb 27 2018 12:52 PM UTC

}// 140/140

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Enjoy the ride but watch out for the missing track pieces! :)

Show more comments…
u/aleamb

wow! epic!
u/zanella

Damn!!
u/sigveseb

Crazy good!
u/artfarnaa

Crazy Epic!
u/jylikangas

Thanks!
u/aleamb

#rollercoaster

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aemkei

remix of d/5600 by u/p01

function u(t) {

for(c.width|=i=h=555;i--;)x.fillRect(h+(i*h-i*i)**.5*S(t-i),i,'耀ࠠ䆄鹲�鯵�嵴䲲旓겘ャ蕌੡兎豐炆萔₠䤈䡅䈂呐ₔ⒠䐁∉ሊ@ 䀀'.charCodeAt(i/16)>>i%T&1&&T*C(t-i)+T,T=16)

Jan 9 2018 10:10 PM UTC

}// 140/140

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Here is my attempt to render the world in 3D.

u/aemkei

This is based on d/5423 and the amazing bitmap renderer d/5233 by u/RomanW.
u/joeytwiddle

This earth is backwards! I think you want S(t+i) and C(t+i)
u/aemkei

You are right! 🙃 (I mean: left ;)
u/iverjo

#earth #sphere #globe

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