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.

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corporateanon

function u(t) {

x.clearRect(0,0,2e3,2e3)
for(i=0;i<20;i+=.1){
y=C(i*4+t/7)*50
x.fillRect(C(i*15+t)*500+1e3,S(i*5)*500+550,y,y)
}

Feb 21 2019 6:15 AM UTC

}// 112/140

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21medals

remix of d/12403 by u/tomxor

function u(t) {

try{eval(a)}catch(e){for(a="",i=40;i--;)a+="\"abcdefghijklmnopqrstuICAWDMPRST`%~?:.,()!+-/*=;1234567890[]{}'< >"[Math.random()*66|0]}throw a

Feb 18 2019 12:09 PM UTC

}// 140/140

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Trying to eval a random string, pauses when its compilable

Show more comments…
u/21medals

Most of them are just one big comment or one long string though
u/katkip

nice!
u/21medals

99% copied from tomxor's dweet though!
u/tomxor

eWuW='.,gttb/PIdd ]I]8fte6?Abnu80<~pI~u' It's still quite impressive that it can find any... I guess reducing the length to 40 substantially increased the probability. The next logical progression would seem to be to let it accumulate shorter evaluable strings and compose a larger one from them.
u/tomxor

If you can also fit in the requirement to reduce entropy then you have the seeds of life inside a dweet :D
u/katkip

yeah
u/katkip

it can be faster with another for
u/tomxor

I tried that but couldn't fit it, so I did the opposite - reduce the search space - I made one that constructs expressions for f(t) and does the canvas bit for it so it actually draws: d/12492

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katkip

function u(t) {

t||(d=0);d++;
for(i=d;i--;)x.fillRect(960+C(6.28*i/d+t*d/699)*(t*99+29),540+S(6.28*i/d+t*d/699)*(29+t*99),5,5)

Feb 20 2019 7:34 PM UTC

}// 110/140

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#moire

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katkip

function u(t) {

x.globalAlpha=.02;x.fillRect(0,0,2e3,2e3);t||(X=10,Y=540);for(i=999;i--;){X+=5,Y+=C(X*t+t)*9,x.clearRect(X,Y,5,X/99);if(X>1920)X=9,Y=540}

Feb 18 2019 2:28 PM UTC

}// 137/140

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WasifBoomz

remix of d/12454 by u/WasifBoomz

function u(t) {

x.strokeRect(t*30,Math.random()*1080,t*3,t*3)
if(t>8){x.strokeStyle="red"}
if(t>16){x.strokeStyle="green"}
if(t>24){x.strokeStyle="blue"}

Feb 21 2019 4:07 PM UTC

}// 137/140

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Shrinked the last one!

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WasifBoomz

function u(t) {

x.strokeRect(t*30,Math.random()*1080,t*30,t*30)
if(t>8){x.strokeStyle="red"}
if(t>16){x.strokeStyle="green"}
if(t>24){x.strokeStyle="blue"}

Feb 21 2019 4:05 PM UTC

}// 140/140

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u/gerzytet

golfed: x.strokeRect(e=t*30,Math.random()*1080,e,e);x.strokeStyle=[0,"red","green","blue"][t/8|0]

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WasifBoomz

function u(t) {

x.fillStyle=R(Math.random()*255,Math.random()*255,Math.random()*255)
x.fillRect(t*Math.random()*100,t*50,1000,t*3)

Feb 21 2019 3:55 PM UTC

}// 114/140

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katkip

function u(t) {

c.style.background='#bbf';q=t*20;x.fillStyle=R(q,q*2,q);for(i=0;i<213;i++)x.fillRect(i*9,+C(Math.random())*250+t*99,9,2e3)

Feb 18 2019 2:34 PM UTC

}// 122/140

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Grass

u/katkip

#landscape #nature

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Xen

remix of d/12413 by u/Xen

function u(t) {

for(i=2e3;i--;)x.fillRect(i+S(C(t/3)*i),t*99,1,1)

Feb 18 2019 6:05 PM UTC

}// 49/140

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u/DataMeta

This one is smooth. Surely there is an even more golfed moire possible
u/geb

#background

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Gabe

function u(t) {

t||(a=b=0)
for(i=8000;i--;)x.fillRect(560+b*C(a),540+b*S(a),1,1),a+=.847*C(t+5*a)+C(t),b+=.002

Feb 21 2019 12:55 PM UTC

}// 94/140

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awsome right

u/metamero

copy of d/12441
u/metamero

when you're gonna to learn and present something new here, Gabe?? you're always free to remix, see the button magically appear when you edit a dweet!