Dweets awesomed by u/veubeke

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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yonatan

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴵ㄲ㭩ⴭ㭸⹦楬汒散琨㤶〫瀮砪瀮眬㔴〫瀮礪瀮眬瀮眬瀮眩⥰㵮敷⁄位䵡瑲楸⡛⸮⸧㌰〰〳〰〰㌵〰〰❝⤮牯瑡瑥䅸楳䅮杬攨琬琬〬琪㤹⤮瑲慮獦潲浐潩湴⡮敷⁄位偯楮琨椾㸶☷Ⱪ㸾㌦㜬椦㜩⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 10:26 AM UTC

}// 140/140

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for(c.width|=i=512;i--;x.fillRect(960+p.x*p.w,540+p.y*p.w,p.w,p.w))p=new DOMMatrix([...'3000030000350000']).rotateAxisAngle(t,t,0,t*99).transformPoint(new DOMPoint(i>>6&7,i>>3&7,i&7));

u/katkip

This is nice
u/iverjo

Cool!
u/katkip

#transpose

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jylikangas

function u(t) {

for(x.fillRect(450,v=30,w=999,w);v--;261979571&1<<v&&x.clearRect(w+v%6%4*40-i*80,(Y>M?M:Y)-(v%6>>2)*40,30,30))i=v/6|0,Y=(t%6-i)*w,M=w-i*80

Nov 7 2018 2:44 PM UTC

}// 138/140

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138b Tetris with improved AI

u/jylikangas

AI just keeps getting better and better :)
u/katkip

Love it
u/durian-favored-monster

A R T I F I C I A L I N T E L E G E N C Eyoutu.be/GwPltOppy1Y

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joeytwiddle

remix of d/8288 by u/joeytwiddle

function u(t) {

for(c.width|=k=512;k--;x.fillRect(960-W-12*j*C(a=t+i*17),960-j*(p=i+4*S(a)),2*W,p))i=k>>5,j=k%32,x.fillStyle='#fc74',W=99*S(j/10)

Nov 7 2018 5:25 AM UTC

}// 129/140

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An orange flower for Diwali

u/joeytwiddle

#flower #diwali https://en.wikipedia.org/wiki/Diwali
u/aleamb

coool

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pavel

remix of d/10875 by u/pavel

function u(t) {

x.rotate(!t*Math.PI/4);for(i=24;i--;)for(j=28;j--;x.fillRect(i*99+d-250,j*99-2e3+d,99,99))x.fillStyle=R(a=(i+j)%2*256,a,a),d=T(i*j/99+t/9-1)

Nov 7 2018 1:08 AM UTC

}// 140/140

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Rain

u/katkip

What rain lol

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yonatan

function u(t) {

eval(unescape(escape`景爨椽ㄲ〰㭩ⴭ㭸⹣汥慲剥捴⡺ⱺⰸⰸ⤩樽椾㸱ⱸ孳㴧獥瑔牡湳景牭❝⠱㘬〬〬㠬堽樥ㄶ⨱㈸⬨樦ㄶ㼰㨶㐩ⱙ㴱ㄳ㈭⡩☭㌲⤫䌨横⨳⭴⨳⤪⨴⨹㤪匨琩⨪㐩ⱸ⹦楬汒散琨稽ⴴⱺⰸⰱ攳⤬硛獝⠸ⰴⰭ㠬㐬堬夭㌲⤻`.replace(/u(..)/g,"$1%")))

Nov 6 2018 9:55 PM UTC

}// 140/140

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for(i=1200;i--;x.clearRect(z,z,8,8))j=i>>1,x[s='setTransform'](16,0,0,8,X=j%16*128+(j&16?0:64),Y=1132-(i&-32)+C(j**3+t*3)**4*99*S(t)**4),x.fillRect(z=-4,z,8,1e3),x[s](8,4,-8,4,X,Y-32);

u/yonatan

I think there was something like this by #beesandbombs (but with perspective, and maybe triangles?)
u/katkip

nice one\
u/twitter

for(h=i=1200;i--;x.clearRect(z,z,8,8))j=i>>1,x[s='setTransform'](16,0,0,8,X=j%16*128+(j&16?0:64),Y=h-(i&-32)+C(j**3+t*3)*99*S(t)**4),x.fillRect(z=-4,z,8,h),x[s](8,4,-8,4,X,Y-32) - 177

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alice-mx

remix of d/10837 by u/veubeke

function u(t) {

c.width^=0
x.font='200px"',
x.fillText('🛸',800+C(t)*280,540)
for(i=27;i--;)x.drawImage(c,500,405+i*5,800,5,500+C(i/2+t*8)*8,700-i*5,800,5)

Nov 6 2018 1:13 AM UTC

}// 138/140

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a spooky spaceship

u/joeytwiddle

Nice #water ripple effect #ufo

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yonatan

remix of d/10837 by u/veubeke

function u(t) {

c.width=i=w=300
x.font='6em"',
x.fillText('Shadow',S(t)*99,m=99)
for(i;i--;x.fillRect(0,i,w,i/w))x.drawImage(c,0,m-i,w,1,-i*4,m+i,w+i*8,.2)

Nov 5 2018 4:01 PM UTC

}// 139/140

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u/iverjo

Wow! Nice #shadow technique

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Xen

remix of d/10835 by u/magna

function u(t) {

t||(a=Array(w=2e3).fill(0))
x.drawImage(c,0,0,w,w,0,5,w,w)
for(i=w;i--;x.fillRect(i,0,1,5))x.fillStyle=`hsl(${a[i]+=i*C(i/299+t)},99%,50%`

Nov 5 2018 3:48 AM UTC

}// 138/140

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u/katkip

#moire

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veubeke

function u(t) {

c.width^=0
x.font='200px"',
x.fillText('Mirrored',590,540)
for(i=27;i--;)x.drawImage(c,500,405+i*5,800,5,500+C(i/2+t*8)*8,700-i*5,800,5)

Nov 4 2018 6:48 PM UTC

}// 136/140

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

Show more comments…
u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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