Dweets awesomed by u/Woodmouth

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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Rybar

function u(t) {

c.width=1920;
for(i=0;i<300;i++){
x.fillRect(i*10.1+S(i*t/10)*100, 340+S(i*t/15)*200, 10, 400)
}

Jul 25 2017 5:13 PM UTC

}// 96/140

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u/Xen

first word that entered the cranium was 'YES!', thats awesome.
u/Xen

first word that entered the cranium was 'YES!', thats awesome.
u/Xen

remix #2942

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dzozef

function u(t) {

c.width=640;for(i=0;i<900;i++){a=i%30;y=Math.floor(i/30);x.fillRect(a*10+y*10,180-a*5+y*5-S(((15-a)*(15-a)+(15-y)*(15-y))*0.02+t*5)*16,2,2)}

Jul 17 2017 12:45 PM UTC

}// 140/140

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u/Polyducks

Wow... this is just.... wow...
u/Xen

90byte De-make #2921

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Xen

remix of d/547 by u/BriSeven

function u(t) {

X=960,Y=X*t%900,a=1;for(i=99;--i;a+=8*Math.random())x.fillStyle=T(a)<9?R(t-a,a/2,1,1):"#FFA",x.fillRect(X+=S(a)*Y/49,Y+=C(a)*4,4,4)

Jul 16 2017 7:36 PM UTC

}// 131/140

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Show more comments…
u/cantelope

this is awesome, but it looks identical to another one you posted...
u/Xen

this is my only tree one? :-o
u/donbright

happy little tree
u/tibbifox

beautiful
u/jick

This is wonderful.
u/innovati

🌲 👨‍🎨🎨
u/itsjustmustafa

It looks so natural!
u/Xen

thank you :-)

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cantelope

function u(t) {

for(x.fillRect(0,0,i=(W=960)*2,i);i--;)x.clearRect(W+W/(Z=6+C(p=i/200+S(t)/(V=i/W*((Y=(i/50+t)%4-1)-3)/(2+Y))+t)*V)*S(p)*V,540+W*Y/Z,9,9)

Jul 15 2017 6:49 PM UTC

}// 137/140

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Special thanks to p01 for helping to golf this. <3

u/sigveseb

looks good!
u/donbright

fine work
u/joeytwiddle

#organic

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alien

remix of d/2849 by u/alien

function u(t) {

w=c.width=200;f=frame
c.style.background='#B28'
x.beginPath()
 for(i=0;i<w;i++)
  x.lineTo(55*S(.82/t+i)+99,50*C(.1*t/i*15)+60)
 x.stroke()

Jul 13 2017 6:19 PM UTC

}// 140/140

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Dancing cobra.

u/donbright

so weird and cool

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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Show more comments…
u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo

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New_Core

function u(t) {

a=t*60
if(a<2e3){
for(b=1080;b--;){
A=a/400-3,B=b/400-1.4
d=A,e=B
for(i=20;i--;)D=d*d-e*e+A,E=2*d*e+B,d=D,e=E,d*e>5?x.fillRect(a,b,1,1):0
}}

Jul 9 2017 7:52 PM UTC

}// 140/140

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u/donbright

i ran this on firefox and i swear some of the little gray pixels are twinkling like little stars. it looks really cool in full screen too.
u/cantelope

amazing
u/New_Core

#fractal

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Beginner

function u(t) {

c.width=700
for(a=0;a<23;a++)for(b=0;b<19;b++){x.moveTo(a*30,b*30)
x.lineTo(a*32+S(b-S(t)+a)*7,b*25+C(b*S(t)+a)*25)}x.stroke();
/*5Mixer*/

Jul 1 2017 12:01 AM UTC

}// 138/140

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Remake Of 5Mixer

u/joeytwiddle

Wavy!
u/katkip

#waves

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New_Core

function u(t) {

t?c.width|=0:d=a=1;a<0?a=0:a-=.1;d<5?a=20:0;x.ellipse(960,840-(d=Math.abs(500*S(t))),a*S(t*9)+200,a*C(t*9)+200,0,0,7);x.fill();

May 21 2017 3:45 PM UTC

}// 127/140

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not that exciting, would been nicer if it went bouncing on the walls also ;)

Show more comments…
u/donbright

maybe something like this?: t?c.width=199:(ẏ=a=ẋ=1,y=X=12);y+=ẏ+=.12;ẏ*=y>99?a=-1:1;X+=ẋ*=X>179|X<12?-1:1;a*=.98;x.ellipse(X,y,4*a*C(ẏ)+9,4*a*S(ẏ)+9,0,0,7);x.fill()
u/New_Core

was thinking like this (but this is to long) t?c.width|=0:e=f=d=a=1;a<0?a=0:a-=.2;d<5?a=20:0;b>1700?(f-=5,a=20):0;b<200?(f+=5,a=20):0;e+=f;x.ellipse(b=960+e,840-(d=Math.abs(500*S(t))),a*S(t*9)+200,a*C(t*9)+200,0,0,7);x.fill();
u/New_Core

(noticed b was not defined.. put b= infront e in start)
u/joeytwiddle

A lot of chars for a little change: t?c.width|=0:d=a=y=F=T=0;l=t-T+.087;y+=9*a;a-=.01;y<-28?(F||(F=T=t),l=.087+(t-T)/2,y=-28,b=40,l>.43?(a=1,y=28,F=0,T+=(t-T)/2):u):b=20*a+20;h=-b*S(l*9);x.ellipse(960,840-y-(y>0?0:h),200+b*S(l*9),200+h,0,0,7);x.fill()
u/donbright

lol @joeytwiddle it looks like it's sentient doing jumping jacks
u/joeytwiddle

#bounce
u/joeytwiddle

20 months later, I got it bouncing off the walls, but not wobbling, in the remix

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Beginner

function u(t) {

c.width|=1;x.translate(960,540);for(i=15;i--;x.rotate(t*.3))x.rect(a=-90-i*20+90*S(t),t,-a,a*2);x.fill('evenodd')
/*Original by New_Core*/

May 19 2017 6:28 PM UTC

}// 138/140

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Remake of New_Core

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