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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ciaccodavide

function u(t) {

~t%2||(()=>{c.width|=1
x.lineWidth=5
A=[]
for(i=99;i--;)A.push(Math.random()*1e3)
A.sort().map((a,i)=>x.lineTo(a+460,A[i-1]))
x.stroke()})()

Aug 4 2021 1:26 PM UTC

}// 140/140

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farter

function u(t) {

W=(a,w,d)=>(r=S(t/4)/2.1+.5,w>99&&W(a,w*r,d*.95)&W(a+w*r,w-w*r,d*.95),x.fillStyle=R(d),x.fillRect(a,0,4,d*4)),c.width|=0;W(-4,1924,255);

Mar 10 2017 1:29 PM UTC

}// 136/140

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u/donbright

fascinating

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sirjofri

function u(t) {

c.width=1920
a=['000','f00','ff0']
for(j=0;j<3;x.fillStyle='#'+a[++j])
for(i=0;i<192;i++)x.fillRect(i*10,S(i/4*(S(t)/2))*10+j*300+90,10,300)

Oct 3 2019 1:11 PM UTC

}// 140/140

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German Unity Day

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andrea270872

function u(t) {

c.width|=r=Math.random
A=[K=500,K,r()*5-2,-r()*10]
P=t?P.map(([i,j,u,v]=e)=>[(i+u)%2e3,j+v,u,v+.1,x.fillRect(i,j,8,8)]):[A]
P[K]?0:P.push(A)

Mar 15 2019 11:30 AM UTC

}// 140/140

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Particle Fountain, variable number of particles, max 500, non-repeating

u/andrea270872

Thanks to LimeLaser for the examples on the use of arrays!
u/katkip

#firework
u/LimeLaser

This is great, I dig it!

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sfz

function u(t) {

c.width|=h=540
D=new Date
for(i=h;i--;)I=S(t-i),O=C(t-i),o=!t?u[i]={x:D*i%h,y:D/i%h}:u[i],x.fillRect(2*h+2*o.x*O-o.y*I,h-o.y*O-o.x*I/3,7,4)

Mar 28 2017 7:48 AM UTC

}// 139/140

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Negative galaxy timelapse

u/sfz

if you want to get a laugh and ruin the magic, remove the -i from I and Our :}
u/sfz

*O
u/donbright

lol nice

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kkingsbe

function u(t) {

with(x)for(q=j=65;j--;fillStyle=R(q,j*3,q-i*q),fill(stroke()))for(beginPath(i=5);i--;)arc(960+S(m=i*+t)*400,340+C(m)*200+j*5,(j&64)*q,0,7)

Sep 20 2019 2:15 PM UTC

}// 138/140

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woah

u/katkip

you can remix projects, don't need to copy them

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AArt1256

function u(t) {

for(X=c.width=192;X>0;X--)for(Y=108;Y>0;Y--)x.fillRect(X,Y,(X/S((Y+t*20|0)+X)^Y+t*20)&1,1);

Aug 25 2023 8:19 AM UTC

}// 91/140

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neat pattern

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katkip

function u(t) {

s='';for(y=31;y>=0;y--){for(i=0;i<y;i++){s+="_"}for(x=0;x+y<32;x++){if(x&y)s+="__";else s+="*_"}s+='\n'}throw s

Jun 14 2020 4:59 PM UTC

}// 111/140

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#throw #sierpinski may break the other dweets so comment the whole dweet before scrolling down ;)

u/Bliss910

wow
u/electric-skeptic

VERY nice!

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iznax

function u(t) {

for(c.width|=i=9;i--;q=C(t)>0)
x.fillRect(z=(4+S(t)*3+i)*100,400,50,200)
x.font="8cm'"
x.scale(q?-1:1,1)
x.fillText("🦓",q?-1023-z:z-175,336)

May 17 2020 5:19 PM UTC

}// 140/140

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Push Me Pull Me #default

u/sigveseb

lol
u/magna

loll

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garettridge

remix of d/933 by u/p01

function u(t) {

for(d=1e3;d--;x.fillRect(960+d*C(t),540+d*S(t),4,4))x.fillStyle=R(e=255*C(t-1e4/d*S(t-C(t*99/d))),99*S(t-e/d),1e4/d)

Jan 13 2018 8:41 PM UTC

}// 116/140

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