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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anotherkitten

function u(t) {

c.width|=0
N=(t/5|0)*1.3
t%=5
x.scale(30,30)
x.fillText("MELTY",9,t*35-N)
for(i=27;i--;)x.fillRect(9-i,36,32+i*2,-((T=t-1-i/40)>0&&T**.2)-N)

Sep 20 2020 4:48 PM UTC

}// 140/140

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Filling the tank with melty text (loops)

u/anotherkitten

real glad i could get this one to turn out how i wanted it!

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andrea270872

function u(t) {

c.width|=r=Math.random
A=[r()-.5,r()-.5,99,1]
P=t?P.map(([i,j,z,v])=>[i,j,z?z-v:99,v,x.fillRect(1e3+z/i,500+z/j,8,8)]):[A]
P[99]||P.push(A)

Mar 15 2019 7:30 PM UTC

}// 139/140

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Remove the drain stopper

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Xen

remix of d/18829 by u/smtsjhr

function u(t) {

for(i=400;i--;x.fillStyle=R(w=i%2*i,i,w,.2))x.fillRect(960+99*C(a=.1*i*t)*(k=1.03**(i-99))-(d=9*k+55*S(t/3)*k)/2,540+99*S(a)*k-d/2,d,d)

Oct 25 2020 4:29 PM UTC

}// 135/140

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quick test

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iverjo

function u(t) {

w=c.width=64;for(i=-1;i++<2304;)X=i%w,Y=0|i/w,M=X-32,B=M+19*S(t),N=M+19*C(t),V=Y-16,1/(B*B+V*V+T(t)*9)+1/(N*N+V*V)>.01&&x.fillRect(X,Y,1,1)

Jun 5 2016 5:56 PM UTC

}// 139/140

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#metaballs

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danny@hille.dk

remix of d/20554 by u/Xen

function u(t) {

for(i=44;i--;x.fillStyle=`hsl(${t*9+i*9},99%,50%,.1`)x.beginPath(x.fill(x.arc(C(t*S(i)+t*9)*44+140*i%2e3,(C(i)*99+t*499%1337),22,0,7)))

Nov 10 2020 7:54 PM UTC

}// 135/140

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quick play

u/donbright

lovely

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sandromiccoli

remix of d/5677 by u/sigveseb

function u(t) {

x.globalCompositeOperation='xor';x.beginPath();x.arc(960,540,Math.abs((T(t/2+99)+1.3)*100),(C(t/5)+1.1)*3,(C(t/4.0)+1.1)*3);x.fill()

Jan 7 2018 4:30 AM UTC

}// 132/140

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DazeWare

remix of d/34285 by u/DazeWare

function u(t) {

with(x)for(i=99;--i;fillStyle=`hsl(${i} 99%${i*1*S(t*2)}%`)for(j=9;j--;fillRect(-T,T*S(i+i*t/T),T=4e3,j))t?rotate(Math.PI/2):translate()

Sep 13 2025 2:24 AM UTC

}// 136/140

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KilledByAPixel

function u(t) {

c.width|=0;x.font="9em'";code.split('').map((v,i,a)=>x.fillText(v,2e3+(i*139-t*2300)%17000,570+400*S(t+i*.155)))//☮♥☻␌

Jun 2 2019 5:13 PM UTC

}// 119/140

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Sine Wave #Quine

u/KilledByAPixel

This quine appeared in my dream last night, felt good to see it in the real world.
u/katkip

I tried to read it and now i see wierd.

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rodrigo.siqueira

remix of d/12467 by u/rodrigo.siqueira

function u(t) {

t||(a=b=0)
for(i=3e3;i--;)x.fillStyle=`hsl(9,45%,${S(t*4)*50}%)`,x.fillRect(960+b*C(a)+(a&1?b:-b),540+b*S(a),1,2),a+=2*C(2.6*a)-t/2,b+=.001

Feb 22 2019 1:39 PM UTC

}// 139/140

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Symmetric bifurcations. The symmetry trick is ...+(a&1?b:-b), this will sometimes add a value ("b") and sometimes subtract. #bifurcation

u/iverjo

#scary #eyes
u/donbright

rodrigo these are amazing

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tiger-cross

function u(t) {

with(x)
for(i=99;i--;fill())beginPath(),arc(960+50*S(i+t),1100-i*10,1100,a=S(i/4+t),a+3),
fillStyle=R(20/i,50/i,255-i*5)

May 8 2020 5:51 PM UTC

}// 120/140

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u/sigveseb

Nice firstie! Welcome!