Dweets awesomed by u/cantelope

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: #Food

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cantelope

function u(t) {

for(c.width|=i=12;i--;x.stroke())x[i-5?'lineTo':'moveTo']((w=990)+(C(q=i<6?-t:3-t)+S(p=2.513*i+t)*S(t))/(Z=S(q)+3+S(p)*C(t))*w,540+C(p)/Z*w)

Aug 29 2017 8:11 PM UTC

}// 140/140

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Xen golfed the last 5 bytes. Cheers!

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u/Xen

not a problem ;) you golfed all the first ones... :D
u/donbright

wireframe king
u/cantelope

@donbright, are you challenging me to make something different? I accept!
u/donbright

we are not worthy
u/cantelope

oh u
u/cantelope

@donbright, i did not mean for my statement regarding a challenge to sound arrogant, but I see it came across that way. I just meant, you are correct that i do a lot of wireframe dweets, and I'm enthusiastic about trying something new! I hope we're good. Love your work!
u/Xen

its hard to figure the emotion behind a comment sometimes, which is why i ALWAYS spam mine with smileys ;-)
u/donbright

no its fine, my words dont come across in ASCII very well
u/donbright

i am in awe of everyone here, my mind constantly boggles at the skill and techniques of all of the people here. i have a special affinity for wireframe for some reason.
u/donbright

i mean i like looking at wire frame, but im not that good at making it, so its cool to see it.
u/cantelope

ah <3

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Xen

remix of d/3118 by u/donbright

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsl(${i+t*t},99%,50%)`)x.fillRect(i*(i*i-(j=t*i%frame)*j)/(b=j*j+i*i),999-i*j*i/b,2,4)

Aug 29 2017 6:08 PM UTC

}// 113/140

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u/donbright

dude i let this run for like 10 minutes and it was really interesting. like little rainbow ants or something.
u/Xen

yeah sorry, it has 'bugs' LOL ;-)
u/sigveseb

lol

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kchplr

remix of d/3105 by u/kchplr

function u(t) {

for(c.width|=i=0,f=t*3%2|0;++i<256;)'|þ᧺뽾똿곿객︿㯴Ǽø'.charCodeAt(f?i>>4:15-(i>>4))&1<<i%16|0&&x.fillRect(i>>4<<5,i%16<<5,32,32)

Aug 25 2017 10:56 AM UTC

}// 128/140

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Sprite animated with simple mirroring

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u/kchplr

can actually make it move under 140 chars: for(c.width|=i=0,f=t*5%2|0;++i<256;)'|þ᧺뽾똿곿객︿㯴Ǽø'.charCodeAt(f?i>>4:15-(i>>4))&1<<i%16|0&&x.fillRect(i>>4<<5,(i%16+t*5<<5)%1e3,32,32)
u/sigveseb

Very nice, cool tricks
u/donbright

excellent
u/FireFly

Very nice! Where is the sprie from? For some reason it feels really familiar…
u/kchplr

@FireFly: Possible :) It's a NPC from The Legend of Zelda: Oracle of Ages
u/13thptr

#hiddengem #bitmap

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Xen

remix of d/3101 by u/kchplr

function u(t) {

f=frame
'p}¶¼<¼¶}p'.charCodeAt(f/8|0)&1<<f%8|0&&x.fillRect((f/8|0)*9*11,f%8*9*11,99,99)

Aug 24 2017 11:50 PM UTC

}// 89/140

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New_Core

function u(t) {

c.width|=0;
for(i=130;i--;)x.ellipse(960,540,i*4,150*S(t+i/50)+150,2*S(t/4)+i*2.1,t,7+t)
x.stroke()

Aug 24 2017 3:05 PM UTC

}// 99/140

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u/FireFly

Awesome "wire" art! Love it.
u/SilentSword

excellent!
u/d0n.key

Illuminati confirmed - I see triangles everywhere

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cantelope

function u(t) {

if(!t){w=1080;p=0.618;s=1.5708}with(x)lineWidth/=p,strokeRect(0,0,w,w),arc(w,w,w,s*2,s*3),stroke(),translate(w+w*p,0),rotate(s),scale(p,p)

Aug 21 2017 12:51 AM UTC

}// 138/140

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best fullscreen. Couldn't have done it without the help of the dark knight, who prefers to remain anonymous. :)

u/donbright

yeahhhhh!!!!! cool
u/cantelope

there's an odd bug in chrome where if hardware acceleration is disabled, or the dweet appears far down the page, the arcs close their paths and create unwelcome diagonal lines. I have a more robust version but it does not fit in 140b.
u/katkip

#fibonacci

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kchplr

function u(t) {

P=t?(C(t)+1)*1e6:A=[];B=[X=P>>9,Y=P%1e3,M=P&127,0,7];A.some(([o,p,q])=>Math.hypot(X-o,Y-p)<q+M)||x.beginPath(A.push(B))|x.fill(x.arc(...B))

Aug 20 2017 6:56 PM UTC

}// 139/140

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A brute force approach to circle packing. A lot of thanks to jsgolf slack channel residents @xem and @qfox helped **a lot** reducing my original 167 characters attempt ( https://codegolf.tk/a/152 ), as in actually doing most of it. I honestly did not think reaching 140 bytes was possible.

u/Xen

done you a remix ;)
u/sigveseb

Excellent stuff
u/iverjo

#dots

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FireFly

function u(t) {

for(i=2e3;!t&&i--;Math.random()>(X**2+(Y-4)**2)**.5/6&&f(7)+f(-7))X=i&3,Y=i>>2&7,f=m=>x.fillRect(240*(i>>5&7)+120-X*m,180*(i>>8)+50+Y*7,7,7)

Aug 20 2017 3:53 PM UTC

}// 140/140

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Spritegen! Generates 48 random sprites each time the dweet is run (make a change to rerun the dweet)

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u/sigveseb

I love this!
u/alien

wait WHAT !!
u/alien

D: What is going on here!! how
u/iverjo

How does it work?
u/FireFly

It's a dweetification of an older sprite generator of mine. The idea is to take a "mask" of 0..1 floats and filter a grid of random numbers for when num<mask. In this case the mask is based on euclidean distance from centre. This is done for half the sprite, and then the other half is just mirrored
u/FireFly

(You could also view it as flipping a biased coin for each mask value, with the bias given by the mask)
u/FireFly

The same principle would work just as well with larger sprites too, and more exotic/interesting mask shapes. The same rid of random numbers could be applied to different masks, or to an animated mask, to produce an animation between sprites, too!
u/nystrand

so cool!
u/joeytwiddle

Awesome. I love it. Every single one looks like a space invader!
u/iverjo

Interesting technique. Thanks for explaining :) Also, I agree with joeytwiddle
u/jick

Got a link to the original sprite generator?
u/FireFly

I never really wrote it to be shared, so it's all hardcoded and with really ugly code. I put together this animation though: https://twitter.com/FireyFly/status/80072288…
u/statenlogic

Simple, but effective! Makes me want to play 8-bit games again.
u/donbright

genius
u/joeytwiddle

#hiddengem
u/stiaje

#witchcraft
u/tomxor

#bitmap #sprite
u/KilledByAPixel

#generative pixelart
u/KilledByAPixel

#pixelart

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nystrand

function u(t) {

for(i=c.width+=0;i--;x.fillRect(a*w+1e3,b*w+540,m=w/9-9,m))[a,b,z,w=(z+9+T(t))*19]=t?x[i/3|0]:[S(i),C(i),6*i%8-3],x[i/3|0]=[b+a/77,z,a-b/77]

Aug 19 2017 1:34 PM UTC

}// 140/140

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u/iverjo

Respect!
u/joeytwiddle

Wow!
u/cantelope

unreal!
u/n0va

Impressive!
u/FireFly

This one is really cool! Keep it up! :)
u/p01

👍
u/donbright

oh man!!!
u/nystrand

thanks for all the nice comments!
u/13thptr

#d3 #perspective

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New_Core

function u(t) {

c.width|=V=960,H=560
s=2*C(t)
for(i=21;i--;)Z=S(t)+C(a=i*1.57+t)+4,x.lineTo(V+(S(a)+S(t/3))/Z*V,H+(i%5>1?(1+s):(-1+s))/Z*H)
x.stroke()

Aug 18 2017 10:17 AM UTC

}// 135/140

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#box #3d

u/13thptr

#d3
u/13thptr

#cube

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