Dweets awesomed by u/hogan

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/4342 by u/retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+(v-q)*C(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 29 2017 9:57 PM UTC

}// 138/140

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crazazy

function u(t) {

r=n=>n*Math.random()
x.fillStyle=R(r(255),r(255),r(255),r(1))
x.fillRect(r(1920),r(1080),r(200),r(200))

Dec 29 2017 9:48 PM UTC

}// 103/140

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u/jaemiejaemie

alone a l o n e *alone* https://youtu.be/LoOy4_F2a44

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JeremyLikness

function u(t) {

c.width|=0;for(i=120;i--;){p=q=1;for(j=30;j--;)p+=q,q=t/3,x.fillStyle=R(S(j)*255,C(j)*255,j*16,0.1),x.fillRect((j*p*10+i)%2e3,i+200,5,600);}

Dec 29 2017 9:20 PM UTC

}// 140/140

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CliffJonesJr

remix of d/4716 by u/CliffJonesJr

function u(t) {

//REMIX!!!
for(i=0;i++<48;){a=Math.round(t*8+i)%3
x.font=(40+i*3)+'px A'
x.fillText(a?a>1?'🌎':'🌏':'🌍',860+22*i*C(b=t*i/8),600+22*i*S(b))}

Dec 29 2017 9:13 PM UTC

}// 137/140

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Multiverse!

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tjl

function u(t) {

x.globalAlpha=0.5;x.fillStyle='pink';x.fillText(x.filter='blur(2px)saturate(130%)hue-rotate(14deg)contrast(95%)',1e3,9);x.drawImage(c,0,0);

Dec 29 2017 9:05 PM UTC

}// 139/140

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N.B. Results vary between browsers. Works on Linux Chrome and Firefox but a little differently

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Flopster

remix of d/4715 by u/TylerCross

function u(t) {

c.width|=y=0
j=300
for(;y<11;y++)for(i=j;i--;)x.fillStyle=R(0,9,y%2*j),x.fillRect(i*10,j+y*y*10.5+(C(i*0.5/y-t*2+y)+S(t-(y*y)/15))*y*10,8,j)

Dec 29 2017 9:02 PM UTC

}// 140/140

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u/jaemiejaemie

change that one 9 in the fillRect to a 8 and you get seamless waves! pretty!
u/Galaxtone

I don't see a nine.
u/Galaxtone

Also i had to change the 9,j) to a 10,j) at the end so that it looked correct.

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jonathan_b

remix of d/4718 by u/jonathan_b

function u(t) {

for(c.width|=s=490,i=0;i<s;i++)for(j=1;j<7;)r=j*9,x.fillStyle=R(i,j*30,i/C(i),2/j),x.fillRect(970+s*2*C(i)*C(t/j*++j+r*i),s+s*S(i*r),r,r)

Dec 29 2017 8:45 PM UTC

}// 137/140

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jonathan_b

remix of d/4600 by u/jonathan_b

function u(t) {

for(c.width|=s=490,i=0;i<s;i++)for(j=2;j<9;)r=99/j,x.fillStyle=R(i*.6,s/C(j),s/C(i),12/r),x.fillRect(970+s*C(i)*C(t/r*++j+i*r),s+s*S(i),r,r)

Dec 29 2017 8:00 PM UTC

}// 140/140

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CliffJonesJr

remix of d/1281 by u/iverjo

function u(t) {

c.width+=i=0
for(;i++<48;){x.font=(50+i*2)+'px A'
x.fillText(i<9?'🙂':i<18?'☺️':i<27?'😀':'😲',860+22*i*C(a=t*i/8),600+22*i*S(a))}

Dec 29 2017 7:50 PM UTC

}// 127/140

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Happy vortex!

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nic

function u(t) {

k=460
for(i=255;i--;)
{x.fillStyle=R(255-i-(t%9-4)*50,255-i,255-i+(t%5-2)*50,0.02)
x.fillRect(k*2+2*k*C(t*2+i/9),k+k*S(t*2-i/8),99,99)}

Dec 29 2017 6:58 PM UTC

}// 135/140

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u/Xen

my kind of dweet :-D

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