Hot dweets by u/firegodjr

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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firegodjr

remix of d/8050 by u/firegodjr

function u(t) {

with(x)for(c.width|=u=26;u--;)for(v=21;v--;stroke(),beginPath())r=t/.4+(u+v)/2,arc(w=u*80,y=v*80,70,0,7),fillRect(w-S(r)*70,y+C(r)*70,12,12)

May 9 2018 5:28 PM UTC

}// 140/140

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Orbiters

u/firegodjr

Based on https://twitter.com/beesandbombs/status/9942…
u/BalintCsala

Wow, that's almost exactly the same
u/firegodjr

#beesandbombs
u/magna

Made a "wireframe" version: d/8075

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firegodjr

function u(t) {

for(u=26;u--;)for(v=21;v--;)x.fillRect(u*80-S(t*2+u+v)*70,v*80+C(t*2+u+v)*70,10,10),s=S(t/2)*128+128,x.fillStyle=R(s,s,s)

May 9 2018 5:00 PM UTC

}// 121/140

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Not what I was initially going for, but it's cool looking :D

u/PiggyClone205

IT DOESN'T WORK
u/firegodjr

It's due to a bug, chill

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firegodjr

remix of d/7901 by u/kdgraham

function u(t) {

function z(a,b,e,d){if(d>1){ 
x.fillRect(a+=d*S(e),b-=d*C(e),4,4) 
z(a,b,e-=2*S(t),d*=.7) 
z(a,b,e+=2*S(t*t),d)}}c.width=600
z(250,280,0,80)

May 4 2018 7:08 PM UTC

}// 140/140

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F R A C T A L P A N I C

u/BirdsTweetCodersDweet

#fractal #fern... #ifs?
u/13thptr

#recursive for sure

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firegodjr

function u(t) {

c.width=120
for(i=0;i<120;i++)for(j=0;j<67;++j)
x.fillStyle=R(S(t+i*j/19)*255, S(t+i*j/19+2)*255, S(t+i*j/19-2)*255),x.fillRect(i,j,1,1);

Apr 23 2018 6:05 PM UTC

}// 137/140

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Hey did you guys ever stare directly into a CRT tv? Well now you don't have to!

u/firegodjr

#trippy #rgb #bad_for_your_eyesight_probably

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firegodjr

remix of d/7710 by u/firegodjr

function u(t) {

for(i=100;i-=.5;x.fill(),x.beginPath())x.fillStyle=`hsl(${i+t*30},99%,${110-1*i}%)`,x.arc(960-930*C(i+t),1140-12*i*S(t),40,0,7)

Apr 18 2018 7:38 PM UTC

}// 127/140

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An Otherworldly Forest

u/firegodjr

(best at 60fps!)
u/firegodjr

nah, works at all sorts of fps. Nevermind. ^^;
u/sigveseb

Love the colors!
u/iverjo

Yes, good colors

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firegodjr

function u(t) {

for(i=100;i--;x.beginPath())x.fillStyle=`hsl(${i+t*30},99%,${110-1*i}%)`,x.arc(960-200*C(i+t),500-5*i*S(i+t),20,0,2*Math.PI),x.fill()

Apr 18 2018 7:05 PM UTC

}// 133/140

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A portal to another realm? 🤔

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firegodjr

remix of d/7693 by u/firegodjr

function u(t) {

c.width=1920
x.globalAlpha=0.5
for(y=41;--y;){x.fill();x.beginPath();for(w=99;--w+1;){x.lineTo(20*w,S(t+y/5+(S(t/4)+1.1)*w/3)*50+30*y-75)}}

Apr 16 2018 5:56 PM UTC

}// 139/140

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Wobbly Cellular Lava Lamp

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firegodjr

remix of d/7693 by u/firegodjr

function u(t) {

for(c.width|=y=40;y--;)for(w=33;w--;){f=180-y/40*180;x.fillStyle=R(0,f,f,.25);x.fillRect(60*w,S(t+y/5+w/2)*50+30*y-75,60,10*y)}

Apr 17 2018 4:32 PM UTC

}// 127/140

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Underwater lighting (wip)

u/firegodjr

Thanks to u/magna and u/BalintCsala for the golfing help!

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firegodjr

remix of d/7703 by u/firegodjr

function u(t) {

for(c.width=127,y=40;y--;)for(w=33;w--;f=180-y/40*180,x.fillStyle=R(l,f+l,f+l,.2))s=S(t+y/5+w/2)*5,l=s>4?255:0,x.fillRect(5*w,s*3+3*y-7,5,y)

Apr 17 2018 8:16 PM UTC

}// 140/140

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Waves with foam!

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firegodjr

remix of d/7650 by u/firegodjr

function u(t) {

c.width=1920
for(y=41;--y;){x.fill();x.beginPath();for(w=33;--w+1;){x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75)}}

Apr 16 2018 5:30 PM UTC

}// 108/140

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Diet Sinewave Pattern, now with only 108 characters! (Had some leftovers from my original dweet idea that were clogging up the charcount, plus optimized the loops and positioning)

Show more comments…
u/BalintCsala

98 chars: for(c.width|=y=40;y--;x.fill(),x.beginPath())for(w=33;w--;x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75));
u/firegodjr

Thanks! I'm a bit new to reverse loop iteration, so I didn't think of replacing the --w+1. How does the c.width|=y reset the width properly, though?
u/BalintCsala

It sets it to 1960
u/iverjo

Cool! Deserves more attention
u/magna

98 chars: for(c.width|=y=41;--y;x.beginPath(x.fill()))for(w=33;--w+1;)x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75)
u/magna

Ah, u/BalintCsala beat me to it... :)
u/jylikangas

96 chars if you replace --w+1 with w--

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