Dweets awesomed by u/rsrsrs

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: #Opposites

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andrea270872

remix of d/12771 by u/andrea270872

function u(t) {

c.width|=K=1e3
A=[(t*97%11-5)*K,(t*89%13-6)*K,0]
P=t?P.map(([i,j,z,v])=>[i,j,(z+1)%99,x.fillRect(K+i/z,500+j/z,z,z)]):[A]
P[K]||P.push(A)

Mar 15 2019 7:44 PM UTC

}// 137/140

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Build-up!

Show more comments…
u/Xen

love it
u/pavel

103 for(c.width|=K=k=1e3;k--;z>0&&x.fillRect(K+(k*97/60%11-5)*K/z,500+(k*89/60%13-6)*K/z,z,z))z=(60*t-k)%99
u/pavel

Looks like the code you started with used Math.random at each step which made the ultimate position of each square at time 't' impossible to determine directly. Switching to instead use any function of just t makes it quite simple so there is no need to initialize stuff at time 0 and keep it updated.
u/pavel

I learned that in d/11421 to save chars and make d/11424
u/andrea270872

great. thanks very much
u/andrea270872

In my head I was thinking also that t*97%11 is a pseudo-random generator...
u/katkip

Satisfying

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Xen

remix of d/12767 by u/AdamLantz

function u(t) {

x.font="480px'"
x.fillStyle="deeppink"
x.fillText("Naughty",Z=99+S(t)*99,Y=520+C(t)*99)
x.strokeText("Naughty",Z,Y)
x.rotate(C(t*3.147)/1e3)

Mar 15 2019 5:50 PM UTC

}// 140/140

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u/katkip

looks #kinky

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marc8

function u(t) {

c.width=480
z=99
for(j=-2*z;j<2*z;j++)
{k=j<-z?j+z:j>z?z-j:0
for(i=0;i<9;i++)x.fillRect(z+i*25+S(t)*75+2*k*C(t+k/z),z+j/4,12+10*k/z,1+k/z)}

Mar 15 2019 4:00 PM UTC

}// 140/140

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#default

u/Xen

nice
u/tomxor

Eery, feels like some kind of swimming creature!

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rap2h

function u(t) {

o=127;c=200;for(i=512;i--;)x.fillStyle=R(o+o*C(t),o+o*S(t-i),o+o*T(t+i),.5),
x.fillRect(960+c*S(t+i/22*10),540+c*C(t-i),14,8)

Mar 15 2019 3:13 PM UTC

}// 125/140

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I have no idea what I am doing

u/Xen

you can edit dweets directly and it gives you an option to post as remix to give credit to the original author,, have a play about with different dweets, mess with variables or completely change draw method, feel free to join us all in the discord chat https://discord.gg/emHe6cP

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Xen

remix of d/12748 by u/AdamLantz

function u(t) {

o=127;p=2;
for(i=200;i--;x.fillStyle=R(o+o*S(t),o+o*S(t-i),o+o*S(t+i),.5))
x.fillRect(935+S(i+t)*935,C(t+i/9)*515+515,50,i)

Mar 15 2019 7:34 AM UTC

}// 123/140

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u/tomxor

Nice colours :)
u/Xen

Thank you

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midnclose

function u(t) {

x.fillStyle=R(S(0.5*t+0)*127+128,S(0.5*t+2)*127+128,S(0.5*t+4)*127+128,1)
x.fillRect(0,0,1920,1080)

Mar 15 2019 12:05 AM UTC

}// 99/140

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My first dweet. Hope you enjoy!

u/midnoclose

I made this account on accident so I'm going to repost this dweet on my new account.

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jeff

function u(t) {

c.width=1920
for(i=j=0;j<4;i==5?(i=0,j++):i++){x.fillStyle=R((i+j)*t*60%255,(i+j)*t*60%255,(i+j)*t*60%255);x.fillRect(i*320,j*270,320,270);}

Mar 15 2019 12:05 AM UTC

}// 140/140

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Jezza

function u(t) {

t||(X=Y=0);x.globalAlpha=.1;for(i=500;i--;)X+=S(Y),Y+=C(X),x.fillRect(X*60,Y*60,1,1);X=++X%33;Y=++Y%19

Mar 14 2019 2:55 AM UTC

}// 102/140

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X+=S(Y);Y+=C(X)

u/Xen

#waitforit
u/DataMeta

I really dig this

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marc8

function u(t) {

c.width=w=320
for(i=0;i<w;i++){
z=1-(S(k=(i-w/2)/11)/k)**2
x.globalAlpha=z**10 //gamma
x.lineTo(i,1+z*60)
x.fillRect(i,80,1,70)}
x.stroke()

Mar 12 2019 9:59 PM UTC

}// 139/140

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The physics dweets: single slit diffraction figure. Adjust the gamma value from 1 (accurate) to whatever (enhanced).

u/rodrigo.siqueira

Morlet Wavelet + Gabor filter #wavelet

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yokljo

function u(t) {

c.width|=0
for(i=0;i<540;++i)y=t*5-i*5,o=400-i,x.fillRect(960-o/2+S(y)*100,i*2,o,2)

Mar 12 2019 5:34 PM UTC

}// 83/140

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Try going fullscreen and staring at this. Not so nice anymore is it?

u/katkip

Still nice

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