Dweets awesomed by u/dwardu

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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anthonylewis

function u(t) {

r=t**2;x.beginPath();x.arc(960+C(t)*r,540+S(t)*r,r,0,2*Math.PI);x.stroke();

Apr 3 2018 3:11 PM UTC

}// 76/140

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My first post, just a silly spiral

u/BuRRak

Cool
u/zanella

Nothing silly about it. :) And welcome! Have fun!!

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prplz

function u(t) {

let X,Y
for(X=120;X--;)for(Y=60;Y--;x.fillRect(X*16,Y*16,16,16))q=(X-60)**2+(Y-30)**2,x.fillStyle=R(S(q+t*8)*255)

Apr 3 2018 1:47 AM UTC

}// 113/140

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u/robbyg

A springy remix: https://www.dwitter.net/d/7553

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jylikangas

function u(t) {

c.width=300+S(t/2)*99
with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=99+i*S(t/3)*3,70,450/(Z=i-t*6%1),2.7,6.7)&rect(X-(z=150/Z),70+z,z*2,7)

Mar 31 2018 10:18 AM UTC

}// 140/140

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Tribute to Strange Crystals

Show more comments…
u/iverjo

Very good tunnel!
u/p01

✨ You can save 3 bytes by replacing 2.7 and 6.7 by 9 and 13
u/jylikangas

Thanks! Improved version: c.width=W=350+C(t)*150 with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=W/2+i*S(t/3)*4,70,450/(Z=i-t*8%1),9,13)&rect(X-(z=150/Z),70+z,z*2,7)
u/iverjo

#tunnel
u/sigveseb

#witchcraft
u/pavel

Even better with(x)for(c.width=W=350+C(t)*150,i=17;--i;fill(rect(X-z,70+z,z*2,7)))globalAlpha=.2,z=150/(i-t*8%1),arc(X=W/2+i*S(t/3)*4,70,3*z,9,13)
u/vain

This psydo 3D programming is just too high for me! My biggest respect! ! ++++

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nystrand

remix of d/6046 by u/nystrand

function u(t) {

for(i=w=2e3;--i;x.fillStyle=R(N*a/4,50+a*3+w,w,.1),x.fillRect(-2,-a,6,w,w=3))a=i%32,x.setTransform(32-a,w,C(t-i/333)*9+w,N=9-T(i>>5),i,1070)

Mar 23 2018 3:53 PM UTC

}// 140/140

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Color version

Show more comments…
u/BuRRak

Amazing
u/aleamb

wow!
u/jylikangas

What a clever way to do the background. I also like how you used Math.tan to get the trees.
u/magna

wat.
u/sigveseb

<3
u/iverjo

Niiice
u/joeytwiddle

very nice again! :)
u/iverjo

#grass
u/joeytwiddle

#tree #trees #palm #palm_tree #organic #landscape
u/joeytwiddle

#scene ;-)

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Batrachus

function u(t) {

r=a=>Math.floor(a*Math.random())
w=120
for(i=0;i<w;i++){x.fillStyle=R(0,r(255),r(255))
b=r(w/2)
x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c)}

Mar 14 2018 6:58 PM UTC

}// 138/140

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u/magna

120: r=a=>a*Math.random()|0;for(i=w=120;i--;x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c))x.fillStyle=R(0,r(255),r(255)),b=r(w/2)

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jylikangas

function u(t) {

c.width=200+(99<<t/5%3)
for(i=W=400;i--;x[f](137+C(i/9)*9,79+i/9+S(t*7+i/W)*45,1,1))x[f='fillRect'](0,h=(i+t/.897)*50%W,h,45)&x[f](0,i,h,.2)

Mar 13 2018 3:45 PM UTC

}// 140/140

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Happy spring! :)

Show more comments…
u/magna

DUDE!
u/aleamb

fuck! this is superb!!
u/fujimotos

+1 for multiple perspectives.
u/zanella

(watching for 5 seconds) Ok. this doesn't seem too difficult to do. (watching for more 10 seconds) THE CAMERA ZOOM CHANGES!
u/iverjo

Really impressive
u/iverjo

#bounce
u/katkip

#coil #stairs
u/vain

haha.. really cute <3

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Xen

function u(t) {

with(x)for(i=35;i--;fill())beginPath(stroke()),arc(990+C(t*9+i)*i*19,540+S(t*9+i)*i*19,i*19,0,7),fillStyle=`hsla(${i*9+t*299},90%,50%,.5)`

Mar 12 2018 5:10 PM UTC

}// 138/140

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u/aleamb

nice colors!
u/Xen

THanks :-)

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yonatan

function u(t) {

for(X=w=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,s,s))z=((a=X-50+w*C(t))*a+(b=Y-28)*b)**.5/w,s=C(X*z)+S(b*z),x.fillStyle=R(s*w*2,s*w)

Mar 11 2018 10:38 PM UTC

}// 136/140

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u/magna

Nice!
u/joeytwiddle

#warping

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keithclark

function u(t) {

with(x)for(c.width=L=a=255,globalCompositeOperation='exclusion';a-=5;arc(v=S(G+=t)*90+L/2,v/2,a,~beginPath(fill()),6))fillStyle=R(L,G=a%2*L)

Mar 7 2018 5:56 PM UTC

}// 140/140

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I was hoping for a more interesting vertical path but couldn't find enough bytes.

u/AnnanFay

S(G+t) saves a character.
u/keithclark

Thanks - that was left over from a previous optimisation for computing a different Y offset

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dwardu

remix of d/7149 by u/dwardu

function u(t) {

x[m='fillRect'](0,0,999,400);x[m](999,130,50,140)
navigator.getBattery().then(b=>x.clearRect(990,9,981*(b.level-1)*(1-t%b.charging||1),382))

Mar 5 2018 8:48 AM UTC

}// 140/140

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Battery status indicator. Works in Chrome: https://caniuse.com/#feat=battery-status

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