Dwitter - javascript demos in 140 characters

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: #Food

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mop

function u(t) {

b=150
c.width=1920
x.font='5em"'
for(i=3;i<9;i++)for(j=4;j<8;j++)x.fillText('💩',i*b,j*b+((t+i)*99)%b)
x.font='70em"'
x.fillText('☁️',b,680)

Jun 21 2018 8:19 PM UTC

}// 139/140

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only looking good on windows it seems :(

u/joeytwiddle

On this Mac 16em or scale(25,25) are the largest. But you can lower the width: d/7863

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New_Core

remix of d/8639 by u/pythech

function u(t) {

with(x)for(i=9*t,translate(c.height=1e3,500);i-->0;fill())beginPath(fillStyle=`hsl(${i},99%,50%`),arc(5*i,0,20*C(i*.9)+30,!rotate(-3.88),9)

Jun 21 2018 11:49 AM UTC

}// 139/140

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I did also play around with this.. =) I also did a shorter version where I used sin and cos directly on arc x,y instead of using rotate and translate... (didnt get exact same form so I let you guys try that on your own)

u/pythech

Funny how I came up with almost exactly same code d/8677 :D I like yours better though as it's better centered. I first thought the asymmetry made it more stylish but now I regret that choice

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lazyguyy

function u(t) {

t=9*t&(c.width=511);for(a=1;a<55;){o=(++a**9+t)%43-9;for(z=1;z<10;)x.fillStyle=R(0,S(++z/4)*255),x.fillText("シンボル"[(t+z+a)%4],a*9,(o+z)*9)}

Jun 20 2018 3:05 PM UTC

}// 139/140

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Maybe someone can add a black background, but I'm not good enough at golfing down js code to this. #matrix

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pythech

remix of d/8669 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=6;i--;fill(),fillStyle=k?'#fff':R())beginPath(k=i%2),arc(420+S(z=i+t)*k*770+500*(i>>1),500+90*C(z)*k,200,0,9)

Jun 20 2018 4:56 PM UTC

}// 133/140

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u/joeytwiddle

Mind-twister! :D #opticallillusion

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lionleaf

remix of d/8639 by u/pythech

function u(t) {

c.width|=0
with(x)for(translate(900,500),i=9*t;i-->0;fill())fillStyle='hsl('+9*i+',99%,50%)',fillRect(5*i,0,a=40*S(i*.9)+60,a),rotate(-3.88)

Jun 19 2018 1:07 AM UTC

}// 140/140

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#confetti remix! Had to go to squares to squeeze color in, but should be possible to golf back to circles

u/BalintCsala

You don't have to close the hsl function
u/redactedhoptional

You can use a template string in the color string, so hsl(${9*i},99%,50%, it saves 1 character. You could also make it translate(960,540) so it is correctly centered.
u/redactedhoptional

Also also, you can remove fill(), and round the -3.88 to -3.9 to save a character.

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BuRRak

function u(t) {

for(i=c.width=60;i--;)for(j=34;j--;)x.fillStyle=`hsl(${(i+j+t*(q?1:-1))*30},100%,50%)`,x.fillRect(i,j,1,1)}{q=Date.now()%2

Jun 23 2018 3:51 PM UTC

}// 122/140

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Has two directions

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aemkei

remix of d/8633 by u/aemkei

function u(t) {

c.width=600;x.font='9em"';for(i=3;i--;x.fillText(T[0]+T[1]+T[2],40,240))(t-(R|0))<i+2?T[i]=[...'💰🔔🍒🍌🍉'][(i*R+9*t|0)%5]:S;onclick=_=>R=t

Jun 18 2018 7:25 PM UTC

}// 135/140

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#slotmachine Click to play!

u/aemkei

136: https://www.dwitter.net/d/8647
u/aemkei

(sorry, the 136 version was not working)
u/aleamb

lol
u/aleamb

nice #game
u/joeytwiddle

#slots

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magna

remix of d/8686 by u/aemkei

function u(t) {

x.font="3em'"
x.fillText(a="ᴀsci ",C=0,40)
d=x.getImageData(t*3,Y=t*120%82,2,D=3).data
for(;D<19;)C+=!d[D+=4]
x.fillText(a[C],t*54,Y*22)

Jun 22 2018 12:32 PM UTC

}// 136/140

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Ignore the typo

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pythech

remix of d/8693 by u/pythech

function u(t) {

c.width|=0
t/=3
with(x)for(i=1e3;i--;fill(),fillStyle=k?'#fff':R())beginPath(k=i%2),arc(60*(i>>1)-t*222,500+400*S(i*t/10),200,0,9)

Jun 22 2018 4:13 AM UTC

}// 130/140

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#waitforit

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pythech

remix of d/8691 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=32;i--;fill(),fillStyle=k?'#fff':R())beginPath(k=i%2),arc(k*130+200*(i>>1),500+k*160+300*C(i*t)*S(t),200,0,9)

Jun 22 2018 3:54 AM UTC

}// 133/140

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