Dweets awesomed by u/skeletonNatte

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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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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kchplr

remix of d/3104 by u/kchplr

function u(t) {

f=t*3%2<<8;c.width|=0;for(i=0;i<256;i++)'π䐠ꠘ頄鸂适ꀁ态䀁䃡쐁ꃢ适鸌꠰䟀π䐠ꠘ頄鸂适ꀁ态䀁䁁쑁ꐂ遂鸌꠰䟀'.charCodeAt(f+i>>4)&1<<i%16|0&&x.fillRect(i>>4<<5,i%16<<5,32,32)

Aug 25 2017 8:24 AM UTC

}// 138/140

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The animation is not very inspired but... it works

u/joeytwiddle

#cute

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kchplr

remix of d/3101 by u/kchplr

function u(t) {

f=frame
'π䐠ꠘ逄鼂适ꀁ䀁䀁䃡ꃢ适鼌꠰䟀'.charCodeAt(f>>4)&1<<(f%16|0)&&x.fillRect((f>>4)*40,f%16*40,40,40)

Aug 25 2017 7:35 AM UTC

}// 92/140

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u/joeytwiddle

#cute

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magna

remix of d/2403 by u/magna

function u(t) {

w=c.width|=0
r=x.clearRect.bind(x)
x.fillRect(0,0,w,w)
r(950+C(T=t*30)*70,490+S(T)*70,20,20)
r(0,950,t*w,10)
r(40,1e3,10,40)+r(60,1e3,10,40)

Aug 24 2017 6:29 AM UTC

}// 140/140

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dweet player loader

u/FireFly

I keep waiting for it to finish loading…
u/sigveseb

Sweet!
u/magna

#dweetplayerloader
u/joeytwiddle

#loading

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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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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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joeytwiddle

function u(t) {

m='ŐߴོߴՔનᚥ᪩ȠԔ';for(i=99,s=i*T(t);i--;Y=i/9|0,c=m.charCodeAt(Y)>>2*X-2&3,r=(c&1)<<8,x.fillStyle=R(r,r,(c&2)<<7),x.fillRect(s*X,s*Y,s,s))X=i%9

Aug 12 2017 9:37 AM UTC

}// 140/140

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Minion Stuart

u/joeytwiddle

Sorry it's a bit late. I tried to do one with vectors before, but it took too many chars! Can you manage it? :)
u/joeytwiddle

#movie #tribute
u/Xen

always epic, late or early...

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cantelope

function u(t) {

for(W=(c.width=1e3)/2,i=16;i--;x.stroke())for(j=17;j--;x.lineTo(W+S(p)*S(q)/Z*W,275+C(q)/Z*W))Z=C(p=.785*(i>8?j:i)+t)*S(q=.39*(i>8?i-8:j))-3

Aug 11 2017 6:18 PM UTC

}// 140/140

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Made a tutorial for this: https://cantelope.org/sphereGolfed

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u/kimber

Your website is an inspiration. Thanks.
u/cantelope

<3 @kimber
u/FireFly

Nice wireframe sphere! :D
u/alien

omg you did it !!!!!
u/cantelope

To give credit where it is due, qfox helped me shave off the last ~10 bytes.
u/donbright

:O:O:O
u/iverjo

That's really impressive. Kudos!
u/n0va

Awesome!
u/joeytwiddle

#sphere #wireframe

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Xen

function u(t) {

x.globalCompositeOperation='xor';t?x.drawImage(c,w/4*(t*9%3|0),h/2*(((t*9%3|0)+1)%2),w/2,h/2):x.fillRect(0,0,w=1920,h=1080)

Aug 10 2017 10:07 PM UTC

}// 123/140

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making this gave me such a headache, can you spot a simple 4bytes to shave? ;-)

u/Xen

dont post here, you see it when you see it, let others use this as target practice.

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cantelope

remix of d/3008 by u/New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(X=Y=0,i=d=350;i--;x.clearRect(X*Z+960,Y*Z+540,Z*4,Z*4))Z=d/(9+d-t*i%d),X+=6*C(a=i/50-9*S(t/8)*S(i/9)),Y+=6*S(a)

Aug 5 2017 5:55 AM UTC

}// 139/140

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just made a few small changes.. loved this one and wanted to see it with colors inverted :D

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