Dweets by u/erin

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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erin

remix of d/21477 by u/Qwitter

function u(t) {

w=c.width=1920;N=70;for(j=3e3;j--;){X=(j%N)*15;Y=((j/N)^0)*15;x.fillRect(X+4*(X/120*Y/100)+90,Y+40*S(X/N-7*t)+55,9,9);}x.fillRect(N,4,9,w)

Jan 30 2021 10:56 PM UTC

}// 138/140

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flag, but i can't figure out how to have the left side not move, if anyone has ideas feel free to remix!

Show more comments…
u/erin

#flag
u/danny@hille.dk

just have your y movement be a function of x -> w=c.width=1920;N=70;for(j=3e3;j--;x.fillRect(X+4*(X/120*Y/100)+90,Y+X*.1*S(X/N-7*t)+55,9,9))X=(j%N)*15,Y=((j/N)^0)*15 x.fillRect(N,50,9,w)
u/danny@hille.dk

for(j=w=c.width|=N=60;j--;x.fillRect(X+4*(X*Y/8e3)+90,Y+X*.1*S(X/N-7*t)+55,9,9))X=j%N*15,Y=j/N*20;x.fillRect(N,50,9,w)
u/erin

o wow there we go
u/erin

room for color too
u/Qwitter

nice!

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erin

remix of d/21440 by u/erin

function u(t) {

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=i/w,X/9+1*(Y/6.5)+S(X/7-5*t),1),x.fillStyle=`hsla(${U=i/13+S(t+i)*4+w},30%,50%,${T(U)+.5})`

Jan 27 2021 9:20 PM UTC

}// 139/140

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this is supposed to be water in the sun, but i couldn't figure out how to make the color blue instead of rainbow without ruining the shine.. any ideas?

u/danny@hille.dk

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=i/w,X/9+1*(Y/7)+S(X/7-5*t),1),x.fillStyle=hsl(${U=191+i/55+S(t*9+i)*4},60%,40%,${T(U)+.5}
u/danny@hille.dk

You can do it the lazy way, by simply adjusting the number range to lay within a single color hue, and shifting it towards the blue hue, blue is around 165 (light greenish blue) to 260(purplish blue)
u/danny@hille.dk

But i actually like the rainbow water better :-)
u/erin

lol thanks! :)

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erin

remix of d/21439 by u/erin

function u(t) {

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=i/w,X/15+1*C(Y/6.5)+C(X/7-5*t),1),x.fillStyle=`hsla(${U=i/9+S(t+i)*9},5%,50%,${C(U+i)+1})`

Jan 25 2021 2:15 AM UTC

}// 138/140

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Pulsar v2

u/andrea270872

very cool. It makes me thing of some retro tv intro, like from Dr Who! Great

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erin

remix of d/21430 by u/erin

function u(t) {

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=(i)/w,X/15+1*C(Y/7)+C(X/7-5*t),1)

Jan 25 2021 1:52 AM UTC

}// 81/140

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Pulsar

u/erin

no fuckin clue how i got this in 81 characters
u/Qwitter

if you send a single pixel across the screen at this resolution (70) like fillRect(X+t,,1,1,1) you can see how the canvas has a smoothing effect by slowly pouring the alpha = 255 value between the pixels
u/magna

76: c.width=w=70;for(i=3e3;i--;)x.fillRect(X=i%w,Y=i/w,X/15+C(Y/7)+C(X/7-5*t),1)
u/danny@hille.dk

drip drip -> c.width=w=70;for(i=3e3;i--;)x.fillRect(Y=i%w,X=i/w,X/14+C(Y/11)+C(X/7-t*8),1)

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erin

remix of d/21426 by u/Pascal

function u(t) {

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=(i-X)/w,0<C(T(S(X/7+5*C(Y/7-5*t/i))+S(Y/7-5*t))),1)

Jan 24 2021 9:51 PM UTC

}// 99/140

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Nike, but animated...?

u/Qwitter

cool

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erin

remix of d/21280 by u/erin

function u(t) {

if(t<6.28)for(w=i=960;i--;x.fillRect(w+w*X/Z,1e3-w*Y/Z,s=Z/Z,3))
X=2*C(t)+C(V=i*i)*C(t*3),
Y=2*S(t*2)+C(V)*T(i+V)-3.5,
Z=S(t*2)-6

Jan 23 2021 11:26 PM UTC

}// 129/140

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butterfly

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erin

remix of d/21233 by u/erin

function u(t) {

if(t<9)x.fillRect(820+t*40,350+540/(1+5**(--t*t)),9,9)

Jan 17 2021 6:12 PM UTC

}// 55/140

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square root

u/danny@hille.dk

nice :-) use t>9|| rather than if(t<9) to shave off 2 chars
u/erin

thnx !

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erin

remix of d/21281 by u/erin

function u(t) {

c.width|=0
for(w=i=960;i--;x.fillRect(w+w*X/Z,i+i*Z/Z,Z,Z))
X=S(t)+C(V=i*i),
Y=S(V+t)+-C(t),
Z=Y*i/55

Jan 16 2021 2:18 AM UTC

}// 101/140

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perspective shift

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erin

remix of d/21280 by u/erin

function u(t) {

if(t<6.28)for(w=i=960;i--;x.fillRect(w+w*X/Z,1e3-w*Y/Z,s=Z/Z,3))
X=2*C(t)+C(V=i*i+t)*C(t*12)/2,
Y=2*S(t*2)+C(V)*S(t)-3.5,
Z=S(t*2)-6

Jan 15 2021 11:23 PM UTC

}// 132/140

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symmetry

u/Qwitter

spinalesque

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erin

remix of d/13662 by u/rodrigo.siqueira

function u(t) {

if(t<6.28)for(w=i=960;i--;x.fillRect(w+w*X/Z,1e3-w*Y/Z,s=Z/Z,3))
X=2*C(t)+C(V=i*i+t)*C(t*3),
Y=2*S(t*2)+C(V)*S(t)-3.5,
Z=S(t*2)-6

Jan 15 2021 11:21 PM UTC

}// 129/140

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some fun

u/erin

symmetry
u/erin

oops, meant to post that as a remix LOL

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