Dweets awesomed by u/magna

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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magna

remix of d/2648 by u/New_Core

function u(t) {

for(x.fillRect(x.globalAlpha=0.05,0,i=w=2e3,w);i-=4;)s=99/((i+t*99)%w-w),x.clearRect(w*S(i*99)*s+1e3,w*C(i)*s+500,s*9,s*9)

May 2 2017 3:57 AM UTC

}// 122/140

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u/MrM@_S

you missed the 0.05, it can be a .05
u/magna

Gah! I was playing around with numbers and left it there I guess :)
u/iverjo

#stars #starfield

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magna

remix of d/2654 by u/magna

function u(t) {

for(x.fillRect(x.globalAlpha=0.05,0,i=w=2e3,w);i-=4;)s=99/((i+t*99)%w-w),x.clearRect(w*S(i*(t*2&15)+i)*s+1e3,w*C(i)*s+500,s*9,s*9)

May 2 2017 3:03 AM UTC

}// 131/140

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120 bpm

u/magna

Add this at the beginning: t||(new Audio('http://v.ht/yw0I').play());
u/magna

Ah, that audio link no longer works, but it was basically some random 120 bpm IDM track I found on YouTube.

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magna

remix of d/2648 by u/New_Core

function u(t) {

for(x.fillRect(x.globalAlpha=0.05,0,i=w=2e3,w);i-=4;)s=99/((i+t*99)%w-w),x.clearRect(w*S(i*(t|0))*s+1e3,w*C(i)*s+500,s*9,s*9)

May 2 2017 2:58 AM UTC

}// 126/140

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MrM@_S

remix of d/2646 by u/magna

function u(t) {

x.strokeStyle=R(S(t*8)*254,0,0,.5)
for(i=300;i--;x.lineWidth=1,x.stroke())x.beginPath(),x.arc(960,540,i*9,a=t*5+i/9,a+Math.PI)

May 2 2017 12:16 AM UTC

}// 126/140

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MrM@_S

remix of d/2643 by u/yonatan

function u(t) {

for(X=c.width=200;X-=2;)for(Y=140;Y-=2;x.fillText((u+u)[~~(A=(X*C(t)-Y**S(t))&(Y*C(t)+X**S(t)))&127],X*8,Y*4))1

May 1 2017 1:36 PM UTC

}// 111/140

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[Because why not?]

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New_Core

remix of d/630 by u/New_Core

function u(t) {

w=2e3;x.globalAlpha=.05;for(x.fillRect(0,0,a=i=w,w);i-=4;)s=99/(-a+(i+t*99)%a),X=a*S(i*99)*s+1e3,Y=a*C(i)*s+500,x.clearRect(X,Y,s*9,s*9)

May 1 2017 6:47 AM UTC

}// 137/140

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u/donbright

this looks so cool
u/magna

Shaved down to 122: https://www.dwitter.net/d/2656
u/iverjo

#stars #starfield

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New_Core

remix of d/2646 by u/magna

function u(t) {

c.width|=0;for(i=55;i--;x.lineWidth=13,x.strokeStyle='hsl('+a*30+',99%,50%)',x.stroke())x.beginPath(),x.arc(960,540,i*20,a=10*S(t+i/90),a+3)

Apr 30 2017 11:26 AM UTC

}// 140/140

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magna

remix of d/2635 by u/magna

function u(t) {

c.width|=0
x.globalCompositeOperation='xor'
for(i=55;i--;x.lineWidth=30,x.stroke())x.beginPath(),x.arc(960,540,i*20,a=t*5+i/9,a+Math.PI)

Apr 30 2017 1:31 AM UTC

}// 136/140

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u/donbright

groovy
u/magna

#spiral

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donbright

remix of d/2627 by u/saschavoid

function u(t) {

onmousemove=e=>(阳=e.pageX/41,月=e.pageY/31)
x.globalAlpha=.1
for(x.fillRect(0,0,i=2e3,i);i--;)x.clearRect(i,500+99*(S(t*2+i/阳)+C(t+i/月)),1,9)

Apr 29 2017 12:10 PM UTC

}// 140/140

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tone and overtone. (please move mouse over picture)

u/coderkid

lovely
u/gabrielsroka

#interactive

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yonatan

remix of d/2641 by u/yonatan

function u(t) {

for(X=c.width=256;X-=2;)for(Y=148;Y-=2;x.fillStyle=`hsl(${A=(X*C(t)-Y**S(t))&(Y*C(t)+X**S(t))},${A=A*t%50+25}%,${A}%`)x.fillRect(X,Y,2,2)

Apr 28 2017 10:44 PM UTC

}// 137/140

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u/donbright

game changer
u/joeytwiddle

Wow! :D
u/yonatan

hmm, 15 FPS here and 30 on https://dweet.dwitter.net/id/2643?autoplay=1

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