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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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sfz

function u(t) {

d=t*32|0;if(!(d%42))i=new Image(),i.src="//unsplash.it/"+d%469,i.onload=()=>{x.fillStyle=x.createPattern(i,''),x.fillRect(0,0,2e3,1e3)}

Feb 23 2017 8:38 PM UTC

}// 135/140

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jnalezny

function u(t) {

c.width=1920; 
for(i=0;i<9;i++){
 x.fillRect(400+i*100+S(t)*300, 400, 50, 200) 
 x.fillRect(400+i*100+C(t)*300, 600, 50, 200)
}

Feb 23 2017 8:35 PM UTC

}// 127/140

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hisham_hm

remix of d/829 by u/nilstastic

function u(t) {

c.width=900;for(i=0;i<200;i++){var y=i*8-100;var Q=450+C(t*5)*200+C(i+t*2)*300;x.fillStyle=R(y*1.5,Q/2,i);x.fillRect(Q,y+C(t*5)*100,20,20);}

Feb 23 2017 8:28 PM UTC

}// 140/140

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color version of nilstastic's dweet :)

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dwarfc

remix of d/927 by u/dwarfc

function u(t) {

p=10;m=6.284;for(v=0;v<c.width;v+=p){for(g=0;g<c.height;g+=p){x.fillStyle=R(10,v/4*S(g*m+t)*4%v&255);x.fillRect(v,g,p,p);}}

Feb 23 2017 7:57 PM UTC

}// 123/140

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paberr

function u(t) {

c.width=200;k=9;s="d/1055/like";x.fillText("proof of concept "+s,k+S(t)*k,k); i=new Image();if(t==0)i.src='https://www.dwitter.net/'+s;

Feb 23 2017 7:36 PM UTC

}// 135/140

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u/Kalanchoe

oh, this is sneaky :)
u/lionleaf

Oh, oops. Didn't work on android chrome, if it works elsewhere I'll fix it. Thanks!

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RobinLinus

function u(t) {

c.width=w=1920;h=1080;d=60;for(q=0;q<w;q+=d*2){for(e=0;e<h;e+=d*2){x.fillStyle=R(0,99,0,C(t+q+e));o=(d*C(t+q));x.fillRect(q+o,e-o,d+o,d+o)}}

Feb 23 2017 7:22 PM UTC

}// 140/140

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paberr

remix of d/1053 by u/paberr

function u(t) {

w=1920;h=1080;k=window;m=10;l=Math.random;x.fillRect(k.b=(((k.b||(w/2))+(l()>.5?m:-m))%w+w)%w,k.g=(((k.g||(h/2))+(l()>.5?m:-m))%h+h)%h,m,m)

Feb 23 2017 7:00 PM UTC

}// 139/140

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u/Kalanchoe

wow! here's a 103 byte version if you want to add color or something: w=1920;h=1080;f=()=>Math.random()>.5?10:-10;t?x.fillRect((b+=f()+w)%w,(g+=f()+h)%h,10,10):(b=w/2,g=h/2)
u/iverjo

Looks like this dweet is getting "awesomed" a lot due to an exploit in another dweet
u/lionleaf

#random #walk #random_walk
u/taupelink

#randomwalk

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paberr

function u(t) {

w=1920;h=1080;k=window;m=10;l=Math.random;x.fillRect(k.z=(((k.z||0)+(l()>.5?m:-m))%w+w)%w,k.y=(((k.y||0)+(l()>.5?m:-m))%h+h)%h,m,m)

Feb 23 2017 6:58 PM UTC

}// 131/140

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seanleavy

remix of d/1051 by u/seanleavy

function u(t) {

c.width=1920; 
for(i=0;i<11;i++){
x.fillRect(300+i*1+S(t*30)*80, 200, 260, 700)
x.fillRect(500+i*95+S(t*40)*50, 400, 85, 300) 
}

Feb 23 2017 6:53 PM UTC

}// 128/140

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seanleavy

remix of d/1050 by u/seanleavy

function u(t) {

c.width=1920; 
for(i=0;i<11;i++){
x.fillRect(300+i*1+S(t*40)*80, 200, 260, 700)
x.fillRect(500+i*95+S(t*40)*50, 400, 85, 300) 
}

Feb 23 2017 6:53 PM UTC

}// 128/140

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