Dweets awesomed by u/akm

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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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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p01

remix of d/7393 by u/yonatan

function u(t) {

for(c.width=i=210;i-=1/8;x.fillRect(99+(i-99)*C(t)+S(i)*r,S(i/67+S(t)/2)*75+C(i)*r,9,9))r=33*S(i/70-6),x.fillStyle=R(a=r*(7-S(i*2)**8),a*.8)

Mar 23 2018 3:33 PM UTC

}// 140/140

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💫 SPINNING BANANA 🍌

Show more comments…
u/p01

Now in centered glory with horizontal and vertical tilt
u/yonatan

Nice!!!
u/magna

Awesome!
u/iverjo

Wow!
u/zanella

Decades from now, we'll all be telling our grandchildren about the Dwitter Banana Frenzy of 2018 .
u/joeytwiddle

#banana

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BuRRak

function u(t) {

c.width|=0;for(i=0;i<8;i++)x.arc(250+200*i,540+S(frame/15+i*30)*200,t**t/t, i -frame,-frame);x.fill();

Mar 23 2018 6:52 AM UTC

}// 102/140

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u/sigveseb

Feels very alive

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jylikangas

remix of d/7422 by u/jylikangas

function u(t) {

for(c.width=i=608;i--;)i%320<64&&i&2||i>447&i%32<6|i>576&i%2||x.fillRect(304+S(A=i/5.1+t)*(80+19*(i<256))+i%5,99+(i>>5)*12+(s=C(A)*8),8+s,9)

Mar 23 2018 6:31 AM UTC

}// 140/140

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Medieval tower v2

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jylikangas

function u(t) {

for(c.width=i=608;i--;i%320<64&&i&2||i>447&i%32<5||x.fillRect(99+S(A)*(60+9*(i>255)),(i>>5)*11+Q*9,9+i%5,9))x.globalAlpha=Q=C(A=i/5.09+S(t))

Mar 23 2018 5:38 AM UTC

}// 140/140

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Spooky medieval tower

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u/Pjaerr

That's cool!
u/p01

I see what you did with the globalAlpha. Same trick as in https://www.dwitter.net/d/5747
u/aleamb

great!
u/sigveseb

A+++
u/joeytwiddle

coool
u/tomxor

This reminds me of the old game 'Nebulus": https://youtu.be/aI2UHTT18bs?t=28
u/KilledByAPixel

#castle
u/katkip

i bet you are the winner
u/vain

oh my god. absolutely unbelievable! as tomxor said - it reminds of the great Nebulus game

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BalintCsala

function u(t) {

for(c.width=500,i=t|0;i--;)[[X=250,(Y=150)+(K=(t-1-i)*9)],[X-i*9,Y],[X,Y-K],[X+i*9,Y],[X,Y+K]].map(y=>x.lineTo(...y))
x.stroke();

Mar 21 2018 10:06 PM UTC

}// 129/140

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u/diceroll123

I used to draw these all the time in grade school. 👌
u/joeytwiddle

I think the first graphics I ever drew was something like that
u/13thptr

#astroid

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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

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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yonatan

function u(t) {

for(w=(c.width=h=i=2e3)/50;i--;x.fillRect(X+S(p=t*4-d)*30,Y+C(p)*30,9,9))d=((h/2-(X=w*i%(h+w*8)-w*2))**2+(540-(Y=(i/58|0)*w-w*2))**2)**.5/65

Mar 21 2018 5:41 PM UTC

}// 140/140

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remix of cantelope's https://codegolf.tk/a/189

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Batrachus

function u(t) {

c.width*=a=1
for(i=32;i--;)for(j=0;j<18;x[f](d+10*S(b=Math.PI/2*~~(a=S(a*99)*2+2)),e+10*C(b),g,g))x[f="fillRect"](d=i*60,e=j++*60,g=50,g)

Mar 20 2018 4:51 PM UTC

}// 137/140

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u/Xen

very nice
u/taupelink

#maze

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