Dweets awesomed by u/ellisk1

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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yonatan

remix of d/11642 by u/yonatan

function u(t) {

for(i=c.width|=0;i--;x.fillRect(S(a=i+t)*r+960,i/2,C(a)>0&&C(a)*r/2,19))s=i<1500,r=s?i/3:99,x.fillStyle=`hsl(${s*88} 33%${i%S(i)*77}%`

Jan 4 2019 8:36 PM UTC

}// 134/140

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u/13thptr

:0
u/lionleaf

Now that's a nice #tree . And you've got a full year to decorate it for christmas :)
u/katkip

*o*
u/iverjo

Stunning!
u/joeytwiddle

#christmas #xmas
u/vain

x.call3DEngine('tree') XD

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ellisk1

remix of d/11640 by u/metamero

function u(t) {

x.font='46px"'
t?i=a++%46:a=0
x.fillStyle=`hsl(${a*16},90%,50%)`
f=b=>x.fillText(b[a%3],46*i,a-i)
f('╱╲╱')
f('⎸  ')

Jan 4 2019 8:29 PM UTC

}// 115/140

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Rainbow Stairs

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yonatan

function u(t) {

for(i=c.width|=0;i--;)x.fillRect(S(i+t)*(i<1500?i/3:99)+960,i/2,9,9)

Jan 4 2019 3:26 PM UTC

}// 68/140

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Happy New Year?

u/katkip

WOW AWESOME

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metamero

remix of d/11637 by u/metamero

function u(t) {

x.font='42px"'
t?i=a++%46:a=0
x.fillText('╲╱'[2*Math.random(onclick=reset)|0]+'',42*i,42*(a-i)/46)

Jan 4 2019 3:18 PM UTC

}// 99/140

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classic #maze : canvas version

u/metamero

d/11644 d/11640 d/11637 d/11633 collection of different implementations

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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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keithclark

function u(t) {

for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q*q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q

Dec 31 2018 9:44 PM UTC

}// 140/140

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New Year Fireworks

Show more comments…
u/13thptr

elegant :)
u/keithclark

change S(i*.2)*i*q for S(i*t>>4)*i*q for varying firework effects (2 chars over the limit tho)
u/katkip

haha i like the variation
u/JWinslow23

If q will only ever be 0 or 1 (t%2), couldn't this just be for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q? That way, the variation also works.
u/keithclark

I opted for what I had because it held the initial shape in the sky for longer before gravity takes hold. Your version works and if you're happy to trade off the initial shape, you could also drop the \2 and save another 2 chars
u/keithclark

... also q can be any value between 0 and 1
u/JWinslow23

Ah, my mistake, I forgot about floats
u/lionleaf

Nice one! #nye #fireworks
u/iverjo

Beautiful!
u/vain

3... 2... 1... ignition... beautiful firework

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New_Core

function u(t) {

for(i=130;i--;x.fill())r=Math.random()*500*S(t/2)+99,x.beginPath(),x.fillStyle=R(r,r/2,r/3,S(a=i*t)/30),x.arc(960+r*C(a),440+r*S(a),i/3,0,7)

Dec 30 2018 2:37 PM UTC

}// 140/140

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was messing around with some code and stumbled on this erupt of black smoke.

u/katkip

Paint?
u/katkip

Nvm, vulcano

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13thptr

function u(t) {

c.width=w=400;x.fillText(x.font=m="17px Hello",0,19)
x.getImageData(0,0,w,j=99).data.map((e,i)=>e&&x.fillRect(j*C(i%w*.016-t)+j,i/w,3,3))

Dec 28 2018 11:13 AM UTC

}// 137/140

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Somewhat ambiguous because of implicit orthographic projection

u/13thptr

(first dweet :D)
u/13thptr

add |0 after i/w for a more solid look
u/lionleaf

Nice! Glad to see you make a first dweet :D
u/jylikangas

Welcome! Very nice 1st Dweet! Golfed to 131b -> c.width=w=400; with(x)getImageData(fillText(font="17px Hello",0,19),0,w,j=99).data.map((e,i)=>e&&fillRect(j*C(i%w/63-t)+j,i/w,3,3))
u/13thptr

thanks for the nice comments ! u/jylikangas cool tricks but it seems like inlining fillText in getImageData won't work in FF :(

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ellisk1

function u(t) {

with(x)for(m=q=t*30|0;m-->q-99;fill(arc(960+(r=m**.5*20*C(m))*S(a=m**3),540+r*C(a),w,0,7)))beginPath(fillStyle=R((w=q-m)*2,0,0,1/w**1.48))

Dec 28 2018 1:29 AM UTC

}// 138/140

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VIRUS

u/katkip

#virus I hope this will not aggravate my cold.
u/BirdsTweetCodersDweet

:O

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ellisk1

function u(t) {

for(k=c.width|=n=960;k--;x.fillRect(n+(y/3+40)*C(a),y,7,99))j=k%n,a=j/62+((j/192|0)+(k>n))*3.2,x.fillStyle=R(b=S(a)*255,-b/2),y=(a+t*5)*30%n

Dec 25 2018 11:41 AM UTC

}// 140/140

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Ribbon Christmas Tree

u/rodrigo.siqueira

#christmas #tree

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