New #starfield dweets

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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sam

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=5e3;i--;Z=170-(t*60+i)%160,s=280/Z,x.clearRect(960+1/Z*(-99+i*3e72%199)*900,540+(-70+i*8e01%140)/Z*700,s,s));

Jan 31 2019 12:10 PM UTC

}// 139/140

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u/katkip

#starfield #stars #space #d3
u/cantelope

reciprocals tho: 960+1/Z*(-99+i*3e72%199)*900 -> 960+(-99+i*3e72%199)/Z*900
u/cantelope

might have been good to reference the source: d/2336

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katkip

function u(t) {

x.fillRect(0,0,2e3,2e3)
c.onmousemove=e=>{X=e.x,Y=e.y}
for(i=96;i--;)for(j=54;j--;)x.clearRect(i*20+C(X/999+i*j)*X,j*20+S(Y/999+j*i)*Y,6,6)

Jan 20 2019 9:37 AM UTC

}// 139/140

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#interactive move mouse to rotate 3D #starfield

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magna

remix of d/11335 by u/keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(4-(t+j/9)%4),x.clearRect(400+j%9*100+S(t)*300,400,50,200)

Dec 8 2018 2:18 AM UTC

}// 139/140

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#starfield #default

u/katkip

Nice. #stars

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keithclark

remix of d/11328 by u/keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,k=r>>8,k))r=900/(4-(t+j/13)%4)

Dec 7 2018 11:15 AM UTC

}// 98/140

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Golfed down to 98 bytes

Show more comments…
u/keithclark

Also fixes some glitches in the original
u/keithclark

swap ,k=r>>8,k for ,r>>=8,r to save a byte (97)
u/keithclark

also r=900/(4-(t+j/9)%4) => r=j/(4-(t+j/9)%4) (94)
u/iverjo

Very nice #starfield
u/keithclark

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-(t+j)%7) (92)
u/jylikangas

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-t++%7)(90)
u/keithclark

nice!
u/keithclark

for(x.fillRect(0,0,j=2e3,j);r=j--/(7-t++%7);)x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r) (89)
u/jylikangas

Yes!
u/vain

very nice!
u/384.cz

#starfield

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keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,2/Z,2/Z))r=600/(Z=1+(T(j*.61)-t/3)%1)

Dec 6 2018 5:33 PM UTC

}// 105/140

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u/katkip

#starfield #stars #d3

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cantelope

remix of d/10984 by u/New_Core

function u(t) {

for(w=960,x.fillRect(0,0,i=2e3,i);i--;x.clearRect(w+(4-(i/9+C(t/4)*24)%8)/Z*w,540+(3-i*i/w%6)/Z*w,s=2+99/Z/Z,s))Z=7.5-(i*i*i/w+S(t/4)*24)%6

Nov 16 2018 12:01 AM UTC

}// 139/140

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not really a remix, but inspired by the concept.

u/iverjo

#starfield

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New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(w=i=99;i--;x.clearRect(X=960-((30*S(i*w)+w*S(t/6)+w)%30-15)*Z,540-9*C(i*9)*Z,Z/9,Z/9))Z=w/((i+w*S(t/20)+w)%9)

Nov 15 2018 1:03 PM UTC

}// 137/140

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Starfield that change direction.

u/cantelope

@New_core, cool idea. made another one like it d/10991
u/iverjo

#starfield

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cantelope

function u(t) {

eval(unescape(escape`景爨硛焽❦楬汓瑹汥❝㴧⌰〱㈧ⱸ孬㴧晩汬剥捴❝⠰ⰰⱩ㴳攳Ⱪ⤻椭ⴻ硛煝㵠桳氨⑻楽ⰹ〥Ⱔ筩⨹┹㥽╠ⱸ孬崨㤶〫匨瀽椯㤹┷⭴⼴⤪⡶㴨⸰㌫椪椯㤹㤥ㄩ⽚⨹㤩ⰵ㐰⭃⡰⤪瘬猽⸳⽚ⱳ⤩娽⸲⴨椯㤮㈫琯㌵⤥⸲`.replace(/u(..)/g,"$1%")))

Sep 19 2018 1:51 AM UTC

}// 140/140

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u/iverjo

Wow! #starfield
u/384.cz

Awesome

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cantelope

function u(t) {

for(w=(j=c.width=1e3)/2;j--;x.beginPath(x.stroke()))for(i=6;i--;x.lineTo(w+(50-j%99+S(p=2.51*i))/Z,281+(49-j*6%98+C(p))/Z))Z=1-(j*j/w+t/9)%1

Mar 30 2018 9:37 PM UTC

}// 140/140

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u/innovati

✨⭐️🌟💫
u/magna

Bravo. 5 stars. Or 500. Or 5000. I don't know.
u/cantelope

1k :)
u/Batrachus

Hail Satan
u/joeytwiddle

#starfield

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joeytwiddle

remix of d/7355 by u/New_Core

function u(t) {

for(i=a=360;i--;x.fillRect(i?a*S(i*a)*s+955:0,i?a*C(i)*s+535:0,k=i?s*9:2e3,k))s=20/((i+t*40)%a-a),x.fillStyle=i?`hsl(${i*5},99%,50%`:'#0001'

Mar 18 2018 5:39 AM UTC

}// 140/140

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Remixing New_Core's Starfield 3

u/joeytwiddle

#starfield

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