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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386dx25

function u(t) {

if(!t)f=0;s=.08;π=39*s,c.width=1920,x.font='150px"'
for(τ=f++%7*s/7;τ<2*t;τ+=s)
x.fillText("🔵",842*(1+S(τ+π*C((τ/π+2)/16))),590+468*S(τ))

Aug 16 2022 9:14 PM UTC

}// 137/140

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andrea270872

function u(t) {

I=t*3320%2e3;J=(t*94)%1e3
i=A=I/520-2;B=J/520-1
while((A*A+B*B<4)*(i++<40))[A,B]=[A*A-B*B+.3,2*A*B+.02]
x.globalAlpha=.6
x.fillRect(I,J,i,i)

Mar 7 2019 6:22 PM UTC

}// 140/140

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Ghost of Julia ver4 (with alpha!)

u/f8f82804

#dither #halftone #fractal

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23_Skidoo

remix of d/12051 by u/23_Skidoo

function u(t) {

t/=90
for(i=1e3;i--;x.fillStyle=R(127+S(i+t)*127,20,160+S(-t)*80,.01))x.fillRect((1840)/2*(C(t*4+i*4.105)+1),(1200)/2*(C(t*3-i*9)+1),s=40,s)

Feb 1 2019 7:29 AM UTC

}// 140/140

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firegodjr

remix of d/8144 by u/firegodjr

function u(t) {

x.font='3em x'
r=Math.random
for(j=30;j--;)for(i=63;i--;)x.fillText('◢◣◤◥'[r()*4|0],i*32,j*32),x.fillStyle=R(l=(S(i/3)+C(j/3)+r())*128,l,l)

May 19 2018 3:19 PM UTC

}// 139/140

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Fireballs!

u/Xen

very nice style!
u/sigveseb

Cool!
u/prplz

pretty

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Xen

remix of d/21711 by u/Pascal

function u(t) {

for(x.fillRect(i=9,0,2e3,2e3);i--;x.fillRect(510+i*99+C(t**t)*300,440,50,200))x.fillStyle=`hsl(${t**(i+2)},50%,50%,.2)`

Feb 19 2021 7:12 PM UTC

}// 119/140

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Drug #default

u/tomxor

#waitforit
u/Qwitter

funky

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rodrigo.siqueira

function u(t) {

Xp=X=Y=t/800
x.globalAlpha=.1
for(i=2e3;i--;){
X=Xp*Xp-Y*Y+.9*Xp-.6013*Y
Y=2*Xp*Y+2*Xp+.5*Y
Xp=X
x.fillRect(1300+X*820,740+Y*400,2,2)
}

Feb 9 2019 3:14 PM UTC

}// 135/140

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Tinkerbell Map is a chaotic #attractor dynamical system, as described in https://en.wikipedia.org/wiki/Tinkerbell_map

u/rodrigo.siqueira

"Origin of the name: the graphical picture shows a similarity to the movement of Tinker Bell over Cinderella Castle, as shown at the beginning of Disney films."
u/katkip

You can replace Xp with p

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alexander

function u(t) {

x.lineWidth=10
c.onmousemove=function(e){X=e.clientX*3.3;Y=e.clientY*3.3}
c.onclick=function(e){c.width=1920}
x.lineTo(X,Y)
x.stroke()

Dec 31 2017 3:09 PM UTC

}// 134/140

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u/joeytwiddle

#interactive

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PeerHenry

function u(t) {

c.width=1920
for(j=0;j<12;j++){
for(i=0;i<1000;i++){
var q=t+(1+S(t))*C(t+3)
x.fillRect(80*(1+S(i+t)+2*j),10+i,17+16.5*C(q),11+10.5*S(q))
}}

Jun 12 2018 11:45 AM UTC

}// 140/140

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u/robbyg

118 chars, if you want more room to play: c.width|=0;for(j=12;j--;)for(i=1e3;i--;)x.fillRect(80*(1+S(i+t)+2*j),10+i,17+16.5*C(q=t+(1+S(t))*C(t+3)),11+10.5*S(q))

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magna

remix of d/7191 by u/magna

function u(t) {

s=[]
for(p in x)s.push(p)
T.valueOf=Math.random
f=x[s[T*s.length|0]]
try{f.call&&f.apply(x,[T,T,T,T,T,T,T,T,T].slice(0,f.length))}catch(e){}

Oct 18 2018 6:21 PM UTC

}// 140/140

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Brute-force dweet

u/magna

Open in new tab and refresh to see random stuff
u/tomxor

I love the concept :D, it's a shame the results are so small. Maybe worth randomising the scale of some params beyond 1 also?

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Tekmap

remix of d/11587 by u/katkip

function u(t) {

c.width^=0;f=(X,Y,d)=>{if(d>9)x.arc(X,Y,d,0,7),f(X+d*T(d++-t),Y,d/2),f(X,Y-d*T(d+t),d/2),x.stroke()}
f(960,540,300)

Oct 13 2021 8:16 PM UTC

}// 115/140

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