Dweets awesomed by u/alien

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(x.globalAlpha=.07,x.fillRect(0,0,q=i=2e3,q);i--;)x.clearRect(960+S(p=i/318)*(d=300+S(p*5+C(t/2)*9)*(140+S(t)*70)*C(t*2)),540+C(p)*d,9,9)

Sep 20 2017 4:28 AM UTC

}// 140/140

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u/lionleaf

So smooth!
u/cantelope

change p*5 to p*3 or whatever for different shapes <3

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cantelope

remix of d/3139 by u/Xen

function u(t) {

for(w=i=960;i--;x.fillStyle=`hsla(${X=w-h},99%,60%,.015`,x.fillRect(w+C(h)*X*S(h*9)-s/2,540+S(h)*X*C(h*9)-s/2,s,s))s=(w-(h=i/9+t*w%1800))/7

Sep 1 2017 5:29 AM UTC

}// 139/140

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u/sigveseb

Trippy

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Xen

function u(t) {

for(j=0;j<9;++j){x.fillStyle=`hsl(${Z=t*t%255},99%,50%`;for(i=9;i--;x.fillRect(960+S(p=t/j+9*i-S(t)/(j%2?-2:2))*Z*j,540+C(p)*Z*j,p,p));}

Aug 31 2017 9:29 PM UTC

}// 136/140

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a failed attempt to golf one of cantelopes...

u/cantelope

looks like a win to me :D
u/Xen

https://codegolf.tk/a/44
u/Xen

i gave up keeping it the same at 200bytes lol, i'm too lazy

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alien

function u(t) {

for(i=W=c.width;i--;x.fillRect(C(i)*105,200*S(i)+W/80,(S(i)*30+t*60),C(t))){x.translate(W/13,W/29);x.rotate(i);x.fillStyle=R((t/i),i/4,i)}

Aug 31 2017 8:40 PM UTC

}// 138/140

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Let it run and trip

u/alien

fix your eyes in the center and patterns will start to emerge.
u/donbright

these shades of blue are really cool looking
u/joeytwiddle

yes they are. it looks a bit like an eye sometimes

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Xen

remix of d/3124 by u/Xen

function u(t) {

x.font='300px X';x.fillStyle=R(t*66%(Y=255),t*33%Y,t*99%Y,.01);x.fillText('CodeGolfTeam Xen',Z=9+C(t)*19,Z+598);x.fillRect(Y*C(t)*7,380,Y,Y)

Aug 30 2017 11:35 PM UTC

}// 140/140

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Shoutz CGT!

u/cantelope

this deserves mad props. i don't know if it was accidental or intentional, but the effect is rad.
u/kchplr

The 90's are back, and they're pissed off.
u/Xen

MegaDrive gon kick yo ass!!!! saaaygaaaaaaah!
u/donbright

my screen says "CodeGolfTea", which sounds delivious

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donbright

remix of d/3119 by u/Xen

function u(t) {

x.globalAlpha=.008
半=500
x.fillRect(0,0,i=w=2e3,w)
for(i=(3e3);i--;)x.clearRect(frame*(i*i-(j=t*i%frame)*j)/(b=j*j+i*i),999-2*i*j*i/b,2,4)

Aug 29 2017 9:24 PM UTC

}// 138/140

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thx Xen

u/Xen

Welcome ;-)
u/Xen

i just remixed your remix of my remix of your dweet, trying to message you, find me @xen_the
u/alien

wow

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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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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)

Show more comments…
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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alien

function u(t) {

W=c.width=200
b=x.getImageData(0,0,W,W)
d=b.data
for(i=0;i<d.length;i+=4){
d[i+3]=255
d[i|(i+frame*W>>75)]=150*S(t)
}x.putImageData(b,0,0)

Aug 20 2017 10:16 AM UTC

}// 138/140

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Glitching...

u/sigveseb

cool!
u/donbright

need to turn the knobs on the back of my wood panelled 70s tv set
u/donbright

or maybe the tracking on my vhs player

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nystrand

function u(t) {

for(i=c.width+=0;q=--i/3|0;x.lineTo(a*w+1e3,b*w+540))[a,b,z,w=(z+4)*89]=t&7?x[q]:[C(t*i),i%5?1:-1,2*i%4-1],x[q]=[b+a/99,z,a-b/99];x.stroke()

Aug 19 2017 3:23 PM UTC

}// 140/140

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u/donbright

nice work

dwitter.net | alien (2017)