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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Pjaerr

remix of d/4868 by u/Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=2.3998*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 31 2017 9:35 PM UTC

}// 136/140

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u/Bendoman

Trying to relive the glory days.
u/@no_identd

Try 2.3999631 for maximum IEEE single float precision (it'll expand internally to 2.3999631404876708984375 due to how IEEE754 works)

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jbrewhaha

remix of d/10498 by u/jbrewhaha

function u(t) {

x.fillRect(0,0,1e4,1e4)
t+=2400
n=1200
i=4000
for(;i--;)x.clearRect(
960+270 * S(i/n) / S(i+t),
440-270 * C(i/n) / t*i
,2,2)

Oct 16 2018 4:11 PM UTC

}// 124/140

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u/jbrewhaha

#heart

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brentrb

function u(t) {

c.width=w=640
s=Math.floor(p=t?p+S(t)/5:3)
x.translate(w/2,180)
d=(p-3)/9
for(i=s;i--;x.lineTo(70,0))x.rotate(6.28/(s-1)+d+(d=0))
x.stroke()

Dec 27 2017 12:43 AM UTC

}// 140/140

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pythech

remix of d/8575 by u/New_Core

function u(t) {

with(x)for(b=c.width|=i=40;i--;fill())ellipse(i*199%b+99*S(a=t+i),1200-a*i*20%1300,77,99,0,!beginPath(fillStyle=`hsl(${i*i},99%,50%,.9)`),9)

Jun 13 2018 1:26 AM UTC

}// 140/140

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added transparency, hsl trick doesn't work on Safari it seems

u/joeytwiddle

Instead of hsl(...) you can use hsla(... which will work in Safari
u/pythech

yeah but then you'll exceed the character limit, oh well
u/pythech

the other browsers silently accept the 4th parameter when they should not. That's a bit trickery for me, or at least that's what I meant. I could phrase it a better it seems, thanks for helping anyway, my bad :D

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cagr30

function u(t) {

w=2e3;x.globalAlpha=.05;for(x.fillRect(0,0,a=i=w,w);i-=4;)s=99/(-a+(i+t*99)%a),X=a*S(i*9)*s+1e3,Y=a*C(i)*s+500,x.clearRect(X,Y,s*9,s*9)

May 7 2017 6:25 PM UTC

}// 135/140

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u/Gregg+

500,x.clearRect(X,Y,s*9,s*9)w=2e3;x.globalAlpha=.05;for(x.fillRect(0,0,a=i=w,w);i-=4;)s=99/(-a+(i+t*99)%a),X=a*S(i*9)*s+1e3,Y=a*C(i)*s+

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trabbt

remix of d/4366 by u/trabbt

function u(t) {

c.width|=0,x.translate(999,560);for(i=0;i<900;i++)a=S(t+i)*i/2,b=99+99*T(i),x.fillStyle=R(b,9,b),x.fillRect(a*S(t),a,9,9),x.rotate(S(t+i*4))

Dec 28 2017 12:21 PM UTC

}// 140/140

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KilledByAPixel

function u(t) {

c.width|=0
for(i=1e4;i--;x.fillRect(...b?[i/5-70,540+200*C(i/25),9,9]:[(t*99+i*w)%3e3,140,9-w,800]))w=i<35?29:34,x.fillStyle=R(b=i>80&&i)

Jul 13 2024 2:21 PM UTC

}// 137/140

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Wave Mover #illusion demake of https://x.com/jitanpon/status/18120295973426…

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Froff

function u(t) {

c.width=1920;for(i=0;i<t;i++){x.fillStyle=R(99*C(t),9*i,256-20*i,1);x.fillRect(800+S(t+i)*300,400+20*(t-i),200*S(t-i)-10*i,200*C(t-i)-10*i)}

Feb 10 2016 10:41 AM UTC

}// 140/140

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pavel

remix of d/11426 by u/Quant1um

function u(t) {

t?w=c.width|=onclick=e=>{i+=e.x/7-X/s,j+=e.y/7-Y/s}:s=i=j=X=Y=20
x.fillRect(X+=i*=(i<0?X>0:X<w)||-.7,Y=++j+Y>1e3?(i*=.9,j*=-.7,1e3):Y+j,s,s)

Dec 16 2018 3:34 AM UTC

}// 140/140

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New_Core

function u(t) {

w=c.width=128;for(i=w*w;i--;)x.fillStyle=R(0,0,0,Math.random()),x.fillRect(i%w,i%(w-1),1,1);x.font='5em A';x.fillText("☠",25,65);

Feb 28 2017 8:16 PM UTC

}// 129/140

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I did one with ImageData but the skull didnt fit in. (it was faster but not fast enough to size it up).

u/sfz

swank!
u/New_Core

#noise