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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E-Mouse

remix of d/4624 by u/E-Mouse

function u(t) {

c.width=1920;for(i=0;i<64;i++)x.fillRect(i*30,400+C(4*S(t)+i*3)*100,27,200)

Dec 29 2017 9:21 AM UTC

}// 75/140

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vberlier

function u(t) {

w=1920
h=1080
j=16
c.width=w
for(i=j;i--;){
x.fillStyle=R(i*255/j,S(t)*255,C(t)*255)
x.fillRect(i*w/j,0,w/j*S(t+i),h)}

Dec 27 2017 7:14 PM UTC

}// 118/140

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Hum, hi? I have no idea what I'm doing

u/Xen

yet still, a very good first dweet :-)
u/vberlier

oh thanks :D

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Faaip

function u(t) {

x.shadowBlur=1;x.shadowColor="teal";x.fillStyle="#fff";x.rotate(0.157);for(i=25;i--;){x.fillRect((t*50)%1920,(i*2+t*1000)%1080,50,1)}

Dec 29 2017 9:15 AM UTC

}// 133/140

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xem

function u(t) {

x.fill(x.arc(t,t,t,t,t))

Dec 27 2017 7:08 PM UTC

}// 24/140

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quest for the smallest aimated dweet, top 3: 24b

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@.+

function u(t) {

t=t%4;
if(t>2)x.fillStyle="white";else{x.fillStyle="black";}
x.beginPath();x.lineTo(1000,500);x.arc(1000,500,100,0,(t%2)*Math.PI);
x.fill();

Dec 27 2017 6:57 PM UTC

}// 140/140

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nathanfriend

function u(t) {

	
c.width=1900;s=44;for(i=0;i<1920;i+=s){for(j=0;j<1080;j+=s){f=s*(S(1.5*t+i+j)+1.1)/2;x.fillRect(i+f,j+f,s-f*2,s-f*4)}}

Dec 27 2017 1:10 AM UTC

}// 123/140

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thatmichael85

remix of d/4621 by u/thatmichael85

function u(t) {

c.width|=0;for(i=1;i<180;i++){b=2*t+i;x.fillStyle=R(150,S(t*i)*300,t%0);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 29 2017 8:52 AM UTC

}// 126/140

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u/iverjo

#tree

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zoulei

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=2)s=3/(9.1-(t+i/99)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,540,s*49,j,j+.6),x.stroke()

Dec 28 2017 8:51 AM UTC

}// 138/140

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RespectDeniedExplodedDefended

function u(t) {

w=1920,h=1080;for(c.width=i=w;i>0;i-=1){
x.fillRect(C(i)*i+w/2,S(i+t/2)*i+h/2,5,5);
}

Dec 27 2017 6:46 PM UTC

}// 85/140

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thatmichael85

function u(t) {

c.width|=0;for(i=1;i<140;i++){b=2*t+i;x.fillStyle=R(150,S(t*i)*300,t%0);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 29 2017 8:48 AM UTC

}// 126/140

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(not mine, i modified it so it blinks)

u/thatmichael85

https://www.dwitter.net/d/3760 <-- original
u/E-Mouse

You know there is a remix button if you edit the code of another dweet
u/thatmichael85

yeah, i didn't see it the first time, lol