Random dweets | Dwitter

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.

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contone

remix of d/22583 by u/contone

function u(t) {

c.width|=0
for(i=2e3;i--;)
x.fillStyle=`hsl(${i},99%,50%)`,
x.fillRect(960+S(u=i/24)*i,(C(u)+S(9*t-i/4))*20+500,i/20,i/4)

Apr 21 2021 9:28 PM UTC

}// 121/140

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u/lars-erik

Wow! Manage to isolate the lower part of that visualization and you've got a really nice water animation. Other colors... 👌

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aleamb

function u(t) {

M=Math;a=65025,c.width=w=255;v=w/2;for(;a--;)e=a&w,f=a/w,d=(7650/M.sqrt((s=e-v)*s+(z=f-v)*z)),g=M.atan2(f,e),d+t*99&f&&x.fillRect(e,f,1,1)

Jan 19 2018 1:33 PM UTC

}// 138/140

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My first dwitt. Sierpinski triangles on tunnel effect, more or less.

u/joeytwiddle

Reminds me of the black hole in Interstellar >.<
u/aleamb

#sierpinski #tunnel

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rep_movsd

function u(t) {

c.width|=0,x.font='20em"'
x.fillText('🐕 🐈 🐖 🐐 🐇 🐢',1500-(t*800)%3600,500)
x.fillText('🪦',1650,500)

Oct 11 2021 4:45 PM UTC

}// 99/140

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Pet sematary #ScaryMovies

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whatsinmyopsec

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>Y?f(T(X)*X-Y*Y+.4,X*Y-.9,n+.9):x.fillStyle=`hsl(${n*5} 90% ${S(n)*90}%`;i--;x.fillRect(i,t*60,1,i))f(i/1e3-1,1-t/4)

Jun 26 2020 1:56 PM UTC

}// 139/140

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tactical_retard

function u(t) {

c.width|=0
w=250
h=250
for(i=0;i<900;i++){
a=S(i+(t/i));b=C(t-i)
x.fillRect((c.width/2)+a*w,(c.height/2)+b*h,10,10)
}

Aug 18 2021 10:08 PM UTC

}// 117/140

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ring

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toha73

remix of d/2818 by u/toha73

function u(t) {

c.width=128
for(j=0;j<1;j+=.02)for(i=0;i<1;i+=.02){
v=S(10*(i*S(t/.5)+j*C(t/.4))+t)
x.fillStyle=R(0,0,0,v/2+.5)
x.fillRect(i*128,j*64,2,2)}

Jun 30 2017 4:04 PM UTC

}// 139/140

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u/donbright

so smooth!
u/Xen

so it fits 138bytes: W=c.width=128;for(j=0;j<1;j+=.02)for(i=0;i<1;i+=.02){v=S(10*(i*S(t/.5)+j*C(t/.4))+t);x.fillStyle=R(0,0,0,v/2+.5);x.fillRect(i*W,j*64,2,2)}
u/Xen

strange, said 143bytes at first, glitch on site?? :-/

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stephanegeorget

function u(t) {

c.width=999;for(i=999;i-=9;)for(j=666;j-=6;x.beginPath(),x.moveTo(i,j),x.lineTo(i+40*(S(i/99+t)+2*C(j/979+t)),j+40*(C(j/99-t))),x.stroke());

Jan 19 2022 11:20 PM UTC

}// 140/140

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More Moiré Mumbling

u/vain

Very nice!
u/magna

Awesome!

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rep_movsd

function u(t) {

eval(unescape(escape`𭁞𜁼𯀨𨐽𜰵𝐷𛁪👢👹🐹𜀳𚐊𭱩𭁨𚁸𚑻𮠽𬐽🡦𪑬𫁓𭁹𫁥👱𛁺𚀧𘰰𜀰𙰩𛁸𛡦👦𪑬𫁒𩑣𭀬𩠨𦀽𜀬𜀬𭰽𜡥𜰬𪀽𜐰𞀰𚐬𮠨𙰣𡡆𠠰𝱆𜠵𙰩𞱦𫱲𚁙👹𛁊👪𞱘𚰫🁷𚠳𞱘𧠵𯁼𚁹👙𛁪👊𚐩𩠨𦀥𭰬𦐽𦐭𜰫𝠪𢠯𨐬𞐬𢠯𜐹𚐬𩠨𦀥𭰬𢠥𨠬𞐬𞐩𛁊👊𚡢𙑡𯐻`.replace(/u../g,'')))

Aug 27 2020 3:47 AM UTC

}// 140/140

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Mars Panorama

Show more comments…
u/rep_movsd

#panorama #seamless #space
u/tomxor

Nice concept, I'd like to see it paralax!
u/rep_movsd

I will try a parallax version - dunno if stars are possible with it
u/Xen

t?0:(a=4e4,j=b=y=917) with(x){z=q=>fillStyle=q,z('#000'),f=fillRect,f(X=0,X,w=2e3,h=1e3),z('#ABCEF123');for(Y=y,J=j;X++<4e3;X^4||(y=Y,j=J))f(X%w,Y=Y-3+6*J/a,9,J/2),f(X%w,J%b,2,9),J=J*b%a}
u/rep_movsd

@Xen - can you post the above as a remix? it seems to have errors - is it a parallax version?
u/Xen

not parallax just mildly golfed sorry
u/Xen

take space before "with" and replace with newline

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julie

remix of d/125 by u/julie

function u(t) {

for(i=0;i<900;i++){x.fillStyle=R(i/3,0,255);x.fillRect(100+S(i*t)*3000,100+i,90*C(t),90)}

Apr 14 2016 4:27 PM UTC

}// 89/140

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andrea270872

function u(t) {

c.width|=F=[x=>x,x=>1-x*x,x=>x*(1-x),x=>(1-x)**2,x=>1-x+x*x]
for(i=0;i<1;i+=.001)x.fillRect(300+i*1e3,F[k=~~t%5](i)*1e3,F[k](i)*99,1)

Nov 25 2019 10:43 AM UTC

}// 133/140

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animation with easing functions