Dweets awesomed by u/iverjo

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

show FPS hide FPS share fullscreen

recursive

function u(t) {

with(x)fillStyle=R(z=2e3,z,lineWidth=150,.015),fillRect(0,0,z,z),beginPath(),arc(960+C(t*2)*480,540+S(t)*270,t%4*400,0,7),stroke()

Mar 8 2017 1:42 AM UTC

}// 130/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/donbright

this is so weird
u/iverjo

It's some kind of tunnel :D
u/donbright

i though it was worms bursting out of each other

show FPS hide FPS share fullscreen

jes5199

function u(t) {

for(a=192;a;a--) for(b=108;b;b--){c=a/12;d=b/12;n=255*S(S(c)*(S(d)*S(c)*S(d))*t*5+t);x.fillStyle=R(n,0,-n);x.fillRect(a*10,b*10,10,10)}

Mar 8 2017 1:35 AM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/donbright

nice and mellow

show FPS hide FPS share fullscreen

donbright

remix of d/1871 by u/walsh9

function u(t) {

圈=(n,d,N,D)=>{d+D<15?(圈(n,d,n+N,d+D),圈(n+N,d+D,N,D),w=2e3,m=d+D,x.beginPath(),r=w/m/m/2,x.arc(w*(n+N)/m,r,r,0,7),x.fill()):1}
圈(0,1,1,1)

Mar 7 2017 11:35 PM UTC

}// 136/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

basic Ford's Circles (sort of like Apollonian Circle Packing but every circle touches the floor, or here, the ceiling)

u/donbright

#math
u/donbright

see also https://www.dwitter.net/d/15086 by @taupelink
u/donbright

#numbertheory
u/taupelink

nice!

show FPS hide FPS share fullscreen

FireFly

function u(t) {

for(c.width|=0,i=3e3;Y=i-->>6;((X*(Y^X)*(1-C(t/4))/99&15).toString(D=30)>"082ac4e63b19f7d5"[Y%4*4+X%4])&&x.fillRect(X*D,Y*D,D,D))X=i&63

Mar 7 2017 11:21 PM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Dithering as a stylistic effect

u/nick

Fucking tight!
u/joeytwiddle

#diither

show FPS hide FPS share fullscreen

scottglz

remix of d/1855 by u/scottglz

function u(t) {

with(x){c.width^=0;F=f=>110+S(t*f)*100;for(i=9;i--;beginPath(),lineWidth=250,setLineDash([F(i),F(1)]),arc(-90,-90,270*i,0,2),stroke());}

Mar 7 2017 8:53 PM UTC

}// 136/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/danjah

this one's great!

show FPS hide FPS share fullscreen

jes5199

function u(t) {

for(a=-0;a<181;a++) for(b=0;b<90;b++){x.fillStyle=(S(S(a*Math.PI/9)*S(b*Math.PI/9)*t*4)>0)?"#F00":"#00F";x.fillRect(a*10,b*10,10,10)}

Mar 7 2017 8:11 PM UTC

}// 133/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

port of a shader from shadertoy :D

show FPS hide FPS share fullscreen

FireFly

function u(t) {

r=140-16*(t<10?t:0);for(U=0;U<44;(r<8?"䃀䀰䜼䚬䶴伙倃匞䖴䚬䞜䆀䁠".charCodeAt(Y-61)>>X-18&1:0)||x.fillRect(8*X,8*Y,8,8))X=120+r*C(U+=.11)|0,Y=67+r*S(U)|0

Mar 7 2017 6:23 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Change .11 to another decimal number (e.g. .10 or .13) for a different pattern!

u/magna

What is the nature of the data that you're encoding in that string?
u/FireFly

Just that lil' bitmap in the centre (same way as in other dweets—each bit of each codepoint represents one binary pixel)
u/quate

r=140-16*(t<10?t:0);for(U=0;U<44;(r<8?"䃀䀰䜼䚬䶴伙倃匞䖴䚬䞜䆀䁠".charCodeAt(Y-61)>>X-18&1:0)||x.fillRect(8*X,8*Y,8,8))X=120+r*C(U+=.11)|0,Y=67+r*S(U)|0
u/quate

whoops. sorry.

show FPS hide FPS share fullscreen

__init__

remix of d/1899 by u/tomkh

function u(t) {

for(c.width=i=1920;i--;){for(g=29,h=63&i,v=i>>6,e=g,k=20;k--;)r=T(k-t)+2-h/g,d=C(3*k+t)+1-v/g,e-=1/(d*d+r*r+.02);x.fillRect(h*g,v*g+89,e,e)}

Mar 7 2017 5:53 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/donbright

very nice curve effect on edges

show FPS hide FPS share fullscreen

__init__

remix of d/1895 by u/recursive

function u(t) {

c.width=256;
for(X=255;X--;)for(Y=164;Y--;)
if((q=T(X/8+C(t*7))+C(Y/8+T(t*8))-T(t*3)*2)>0?q<2.2||X+t*300&4:Y+t*30&4)x.fillRect(X,Y,1,1)

Mar 7 2017 5:49 PM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

no idea what happened but I like it

show FPS hide FPS share fullscreen

Niklas

remix of d/1937 by u/Niklas

function u(t) {

for(c.width|=0,a=300,C(t)<0&&(a*=-1),i=0;i<6.2;i+=.01)x.lineTo(960+1333*S(t)+a*C(i)-a*Math.pow(S(i),2)/1.5,540+a*C(i)*S(i));x.fill()

Mar 7 2017 5:03 PM UTC

}// 132/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/SpecialAgent

Oh I like this very much :D
u/iverjo

Now we're talking :)

dwitter.net | iverjo (56085)