Dweets awesomed by u/saon

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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Kyoushu

function u(t) {

x.clearRect(0,0,1920,1080);for(i=0;i<=800;i+=0.9){b=t+i*C(t/100);x.fillRect(S(b)*(960-i)+960,C(b)*(540-i)+540,10,10);}

Feb 1 2019 10:53 AM UTC

}// 118/140

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If you play with variables long enough, something cool will probably happen

u/katkip

True

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elaborate

remix of d/12050 by u/elaborate

function u(t) {

c.width=1920;for(i=0;i<1200;i++){t+=S(i);x.fillRect(1000+T(t)*300,i,5,10)};

Feb 1 2019 10:22 AM UTC

}// 75/140

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u/f8f82804

this ends up with some patterns that are very similar to d/9733!

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saon

remix of d/11886 by u/katkip

function u(t) {

h=200*C(t)
r=4
c.width*=1;for(i=43;i--;)for(j=71;j--;){
x.fillStyle=R(5*i,0,3*j,.5)
x.fillRect(j*30+S(i/r+t)*h,i*30+C(j/r+t)*h,1.5*i,1.5*j)}

Feb 1 2019 2:52 AM UTC

}// 140/140

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saon

remix of d/10377 by u/DaxterSpeed

function u(t) {

c.width=500
v=(a,b=270,g=0,r=80)=>r>1&&x.fillRect(a+=r*g,b-=r*C(g),2*T(g),5*C(g))|v(a,b,g-1+C(t),r*=.7)|v(a,b,g+.5+S(t),r)
v(250)

Feb 1 2019 1:28 AM UTC

}// 129/140

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Changed the animation, added rectangle effects

u/f8f82804

#glitch #fractal

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SpilledMilk

function u(t) {

for(i=10;i>0;i--){for(j=10*i;j>0;j--){
  x.fillStyle=R(0,0,i*30)
  x.fillRect(960-25*i+C(t+j)*j*20*i,540-25*i-T(t+j)*j*20*i,50*i,50*i)}}

Jan 31 2019 7:23 PM UTC

}// 136/140

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Flow

u/thorbear

Mesmerising
u/f8f82804

Incredible #d3 illusion

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lawlerblader

function u(t) {

 for (c.width|=a=50;--a;x.arc(960+S(G-t)*200,540+C(t+G*1)*400,a%2*200*Math.abs(C(t))*7,0,
 6.2832))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Jan 31 2019 10:55 AM UTC

}// 137/140

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hello world

u/lionleaf

Hello u/lawlerblader

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joeytwiddle

remix of d/12000 by u/yokljo

function u(t) {

for(c.width|=j=20;j--;)for(g=j*120,i=99;i--;)x.fillRect(i?g+i/30*S(1e3/i-t*8+j*j*400)*i/2:g,i?i*5+600:0,120+60*S(j*j*(t|1)),i?5:600)

Jan 31 2019 6:22 AM UTC

}// 132/140

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A little remix of yokljo's city river

Show more comments…
u/katkip

Huh nice
u/joeytwiddle

Scrolling instead of switching: for(c.width|=j=15+t|0;j-->t;)for(g=(j-t)*180,i=99;i--;)x.fillRect(i?g+i*S(1e3/i-t*8+j**3):g,600+!!i*i*5,-99-80*S(j*j),i?3:-600)
u/username

What is this supposed to be? I only see black squiggly lines..
u/joeytwiddle

I think it's supposed to be buildings reflect in water. for(c.width|=j=20+t|0;j-->t;)for(g=(j-t)*120,i=W=99;i--;)x.fillRect(i?g+i*i/70*S(1e3/i-t*8+j**3):g,500+!!i*i*4,-W-80*S(j*j),i?3:-300-W*S(j))
u/donbright

oh my god
u/joeytwiddle

Please give u/yokljo an upvote. I only tweaked their idea! #water #waves
u/Tekmap

👏👏👏
u/vain

cool fx

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katkip

function u(t) {

x.globalAlpha=.01;t/=9;for(i=50;i--;)for(j=50;j--;)x.fillStyle=R(i*5,0,j*5),x.fillRect(960+C(i+t)*j*999/j,540+S(i+t*i)*999/j,20,20)

Jan 29 2019 6:01 PM UTC

}// 131/140

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Energy Ray

u/mxfh

with alpha R it's down to 117, or is there a visual difference?
u/katkip

Idk, random coding

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katkip

function u(t) {

t||(j=0);for(i=100;i--;)x.fillStyle=`hsl(${(50-i)**3+j**3} 99%${50+S((50-i)**2+j**2)*j/2}%)`,x.fillRect(j*10,10*i,10,10);j++

Jan 27 2019 8:37 PM UTC

}// 124/140

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From color to grayscale

u/katkip

#abstract #art

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joeytwiddle

remix of d/11968 by u/joeytwiddle

function u(t) {

c.width|=0;o=t*7%15.7-22/7;j=o>0;w=(99-j*80-j*o*1.6)*S(!j*o+j*o*4);x.ellipse(920,850-j*600*S(o/4)-w,200-w,200+w,0,0,7);x.fill()

Jan 27 2019 5:54 AM UTC

}// 127/140

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New_Core's bouncing ball + squash = jumping jack

u/katkip

Nice
u/katkip

#physics #jelly
u/DataMeta

Delightful!
u/joeytwiddle

Change o*4 to o*3 for a slower wobble

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