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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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Current theme challenge: #Food

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hamptonio

remix of d/1619 by u/New_Core

function u(t) {

w=c.width=256;for(i=w*w;i--;)a=255*S(w),x.fillStyle=R(a,a,a,Math.random()),x.fillRect(i%w,i/w|0,1,1);x.font='5em A';x.fillText("ಠ_ಠ",69,90);

Mar 1 2017 4:25 PM UTC

}// 140/140

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I like New_Core's use of a single loop to get two coordinates; I think this is a slight improvement on that aspect.

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Niklas

remix of d/1675 by u/Niklas

function u(t) {

for(c.width|=0,q=100,i=q;i--;)for(a=i*.031+t*5,j=q;j--;)b=j*.031+t*5,x.fillRect(500+10*i+q*C(b),480+5*(j+q)/2.5*S(a),3,3);

Mar 1 2017 4:05 PM UTC

}// 122/140

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u/iverjo

Now imagine Jasmine and Aladdin flying around on that carpet while singing "A whole new world"

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FireFly

function u(t) {

f = (c, y, s) => x.fillRect(t*120, 540 + y*120, s, s, x.fillStyle = c)
f('#999', 0, 2)
f('#F00', S(T(S(T(S(t))))), 4)
f('#00F', T(C(t)), 4)

Mar 1 2017 3:02 PM UTC

}// 139/140

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Two interesting functions. T(C(x)) in particular looks a lot like a rounded triangle wave, which is pretty handy… mostly posting this as a meta-dweet/for reference. :)

u/sigveseb

perfect stuff for putting a community wiki!

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sawaxon

function u(t) {

for(j=0;j<120;j++)for(i=-1;i<198;i++,x.fillStyle=R(100+T(i/4*t)*150,99+C(j*t/4)*99,i/10))x.fillRect((j*i),(j*10),S(t*5)*24,S(t*5)*24)

Mar 1 2017 2:44 PM UTC

}// 133/140

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bligglenuber

remix of d/1570 by u/bligglenuber

function u(t) {

c.width=198;a=6+C(t/99)
for(i=-99;i<99;i+=a)for(j=-56;j<56;j+=a)k=i*j,x.fillStyle=R(f=k*k*(1+C(t)),f/9),x.fillRect(99+i,56+j,a*S(k),a*C(k))

Mar 1 2017 1:52 PM UTC

}// 139/140

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Niklas

function u(t) {

for(c.width|=0,q=100,i=q;i--;)for(a=i*.031+t*5,j=q;j--;)b=j*.031+t*5,x.fillRect(500+10*i+q*C(b),240+5*j+q*S(a),3,3);

Mar 1 2017 1:29 PM UTC

}// 116/140

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u/SpecialAgent

nice cloth :)

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Vano

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 */

Mar 1 2017 12:16 PM UTC

}// 122/140

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kchplr

function u(t) {

for(c.width=500,x.font='13em A',s="🚕🚗🚙🚓",i=10;i--;)x.fillText(s[i*2%8]+s[1+i*2%8],700-((t*1e3+i*400*(1+S(i*9+t)/20))%4e3),205)

Mar 1 2017 11:51 AM UTC

}// 126/140

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feature request: posting anonymously...

u/lionleaf

Why not just create a pseudonym to post with? Or do you mean to make it quicker for new people to post something? I'm afraid it would just get filled with spambots
u/SpecialAgent

nice car chase. registration keeps the quality of dwits decent, imho.
u/kchplr

I was thinking about posting anonymously once you're registred, but it was mostly a joke given I'm not so glad with the outcome of this one. :D..
u/donbright

lol

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sawaxon

remix of d/1671 by u/sawaxon

function u(t) {

c.width|=0;for(j=1;j<40;j++)for(i=1;i<40;i++)x.fillRect(900+S(10+(C(t*j)*50)/2000)*j*40,500+C(i/((t+142)/10))*j*20,S(j*i)*j/3, S(j*i)*j/3)

Mar 1 2017 10:35 AM UTC

}// 138/140

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sawaxon

remix of d/1669 by u/sawaxon

function u(t) {

c.width|=0;for(j=1;j<40;j++)for(i=1;i<40;i++)x.fillRect(900+S(10+i/(S(t*j)*20)/2000)*j*40,500+C(i/((t+142)/10))*j*20,S(j*i)*j/3, S(j*i)*j/3)

Mar 1 2017 10:33 AM UTC

}// 140/140

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