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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Current theme challenge: #Food

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Xen

remix of d/3611 by u/cantelope

function u(t) {

for(c.width|=0,i=3e3,x.globalAlpha=.02;i--;)x.fillRect(i-C(p=(1.255+S(t)/i)*i+S(t))*i/7-(s=Math.min(i/7,69))/2,540+C(p)*i/5,s,s)

Dec 10 2017 7:34 PM UTC

}// 128/140

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tactical_retard

function u(t) {

c.width|=s=60
for(i=s*s;i--;r*r+j*j<4&&x.fillRect(X*s,Y*34,s,34)){X=0|i/s
Y=i%s
r=j=0
for(I=s;I--;j=2*m*j+Y/10-1)m=r,r=r*r-j*j+t%6-2-X/10}

Oct 2 2021 10:37 PM UTC

}// 138/140

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#mandelbrot spaceship

u/rodrigo.siqueira

Instead of r*r+j*j<4 you can use just r<4 , that's 6 characters less. In this low resolution there's no visible difference.

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sawaxon

remix of d/8227 by u/sawaxon

function u(t) {

c.width|=0;for(j=0;j<99;j++)for(i=0;i<8;i++){x.fillStyle=`hsl(${i*40},99%,50%)`
x.fillRect(j*9,400+i*50+S(j/40+t*3)*99,900,50);x.rotate(1)}

May 31 2018 12:10 AM UTC

}// 140/140

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rodrigo.siqueira

remix of d/21665 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`hue-rotate(${t*99}deg)invert(`
for(c.width=i=2e3;i--;x.fillStyle=R(i))x.fillRect(990*(T(i+t/25)%S(i*i)+1),i*S(i*i)+540,4,4)

Jul 15 2021 3:14 AM UTC

}// 139/140

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Playing with hue-rotate filter

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corruptio

function u(t) {

t?x.drawImage(c,50*S(t*2),g=t*100%600,h=600,h,0,g,h,h):navigator.getUserMedia({video:1},e=>(c=document.createElement`video`).srcObject=e,S)

Oct 31 2017 3:28 AM UTC

}// 139/140

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Hold very still

u/magna

lol
u/lionleaf

oh wow, I think that might be the first use of the webcam on dwitter?
u/lionleaf

Looks like I didn't scroll far enough back in /new , still a fairly new thing ^^
u/joeytwiddle

#camera

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Xen

remix of d/11738 by u/katkip

function u(t) {

for(c.width|=i=99;i--;x.arc(960+S(z=t+i/(C(t)*14+19))*9,540+C(z)*9,500-i*i/19.3,0,9))x.beginPath(x.stroke())

Oct 9 2020 6:01 PM UTC

}// 108/140

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play

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DirtyDan

remix of d/6731 by u/DirtyDan

function u(t) {

for(i=1;i<360;i++)x.fillStyle=`hsl(${i/3+t*90},99%,50%)`,R=532*S(i*1.01),x.fillRect(960+R*C(t+i)-4,540+R*S(t+i)-4,8,8)

Feb 6 2018 11:34 PM UTC

}// 118/140

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SkyLett

function u(t) {

α=200;c.width=α*2;τ=Math.PI*2;x.font="36px A";x.fillText(['🌚','🌒','🌓','🌔','fuck yeah','🌖','🌗','🌘'][(t|0)%8],α+C(t)*70,50+70+S(t)*70);

Dec 30 2017 4:39 PM UTC

}// 133/140

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u/skeletonNatte

fuck yeah

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KilledByAPixel

remix of d/13416 by u/KilledByAPixel

function u(t) {

for(i=F=2e3;i--;x.fillRect(i,Y,2,99))k=S(i)**2+1,Y=k*(1e9+t*1e3)%F-1199+99/t,x.fillStyle=R(z=i%2?(999-i)**2+(500-Y)**2<6e4?F:0:99,z,z+30,.5)

Apr 23 2019 7:01 PM UTC

}// 140/140

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The moon shines bright through the rain tonight.

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lewdev

remix of d/27051 by u/lewdev

function u(t) {

onkeyup=e=>(c.width|=0,x.font="3in'",["key","keyCode","code"].map((k,i)=>x.fillText(k+": "+e[k],50,(i+1)*300)))

Apr 1 2024 9:18 PM UTC

}// 111/140

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Show Key Codes (canvas version)