Dweets awesomed by u/Bugsy

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: #Opposites

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firegodjr

function u(t) {

with(x)for(fillRect(p=3.14,0,Y=2e3,Y),k=Y;k--;)arc(960,540,j=k/4|0,v=k%4*p/2+S(t*3-j/70)+t,v+200/j),stroke(),beginPath(fillStyle="#fff1")

Jun 26 2018 1:32 AM UTC

}// 137/140

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The Orb

u/magna

Whoa!
u/Xen

nice style
u/firegodjr

Thanks guys ^^

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charlie.codex

function u(t) {

 z=[t,t/2]
H=(a,b)=>[1-a**2/16+b,-a]
W=(c,d)=>[c*100+960,540-d*100]
for(i=0;i<100;i++){
z=H(...z)
x.fillRect(...W(...z),5,5)}

Jun 22 2018 6:17 PM UTC

}// 125/140

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u/magna

WOW
u/loni_art

i dont know what you are doing but i love it
u/Bugsy

Damn, that's a smart approach. I might need to copy it sometime :)

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pythech

remix of d/8694 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=1e3;i--;fill())beginPath(fillStyle=i%2?'#fffe':`hsl(${t*i/3},99%,50%)`),arc(60*(i/3)-t*74,500+400*S(i*t/30),200,0,9)

Jun 22 2018 6:06 AM UTC

}// 140/140

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#waitforit

u/Galaxtone

Oh my gawd, it just keeps going
u/Galaxtone

I like the bits when it gets stable and makes a line of rainbow, and... it's gone.
u/pythech

#epilepsy alert

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yokljo

function u(t) {

for(i=125;i--;)for(j=99;j--;x.fillRect(i*16*(j+93)/99,j*12+o,28,9))o=C(i/5+t*9+C(j/3))*35*S(j/5),x.fillStyle=`hsl(${t*o},${o+j}%,50%)`

Jun 21 2018 10:35 PM UTC

}// 134/140

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u/magna

This looks amazing!
u/yokljo

Thanks 👍
u/iverjo

Impressive! Rainbow lava?

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Xen

remix of d/8678 by u/DataMeta

function u(t) {

for(i=1e3;i--;x.fillRect(900+i*C(t+i),500+i*S(t+i),i/9,i/9))x.fillStyle=R(i*C(i%t/2),0,S(i%t)*i,.2)

Jun 21 2018 4:46 PM UTC

}// 99/140

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Shoutz 2 DataMeta

u/DataMeta

Niiiiiice! I like how it stays cohesive with a large t. Feels more refined overall

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Bugsy

function u(t) {

for(c.width|=r=999;--r;x.lineTo(960+C(r+t)*a,540+S(r+t)*a))a=r/2
x.stroke()

Jun 16 2018 4:32 PM UTC

}// 75/140

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The graph r=theta spinning around the origin. 65 characters to play with, so there's lots of remixing potential. Try messing around with the trig functions, it leads to some fun results

u/iverjo

Go fullscreen, stare at the center for 30 seconds, then look away from your screen (e.g. look at your keyboard). #opticalillusion
u/iverjo

#short

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leSchieber

function u(t) {

s=5;l=250;w=c.width=1920;h=c.height-l;r=1000;for(i=w/s;i--;){v=(t+i/w*s*r)%r;x.fillRect(w/r*v,(h/r*v+S(v*2*Math.PI)*100),s,300)}

Jun 16 2018 4:26 PM UTC

}// 128/140

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firegodjr

function u(t) {

F=a=>((p=1.62)**a-(-p)**-a)/2.2
with(x)for(c.width|=D=10,x.m=translate,m(8e2,9);D--;)arc(0,0,F(D+2)*9,0,p),m(0,F(D)*9),rotate(1.57),stroke()

Jun 16 2018 3:33 AM UTC

}// 140/140

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The first #fibonacci spiral to ever grace Dwitter! :D

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Bugsy

function u(t) {

n=0;for(c.height=i=1080;i--;n=540*(1+S(t)*T((i%3.14)+1.57))){x.fillRect(960+(S(i*t/99)*200/Math.cosh((n-540)/40)),n,8,8)}

Jun 16 2018 12:42 AM UTC

}// 121/140

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Bugsy

function u(t) {

for(i=(b="!").length;i--;x.font='99px x',x.fillText(String.fromCharCode(a),99*i,99)){(a=b[i].charCodeAt(0))<"n".charCodeAt(0)?a=a+13:a=a-13}

Jun 15 2018 9:24 PM UTC

}// 140/140

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This Dweet does ROT13 if you type in lower case letters in place of the '!'

u/Bugsy

Thanks to @firegodjr on the Discord for help with the last few characters

dwitter.net | Bugsy (6189)