New #Alien 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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Current theme challenge: #Opposites

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andregn

remix of d/10855 by u/rodrigo.siqueira

function u(t) {

c.width=i=w=300,
x.font='3em"',x.fillText('🛸',a=w/3-C(t)*88,60-20*S(2*t)),x.fillText('🐄',w/3+S(t)*88,w/2)

Nov 21 2018 11:39 PM UTC

}// 105/140

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Abduction Chase #emoji

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f8f82804

function u(t) {

if(t%1<.01)with(o=(a=new AudioContext).createOscillator())connect(a.destination),start(),stop(a.currentTime+1);o.frequency.value=1e3*C(t*69)

Aug 27 2018 7:47 PM UTC

}// 140/140

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#audio #halting

u/katkip

Nice.
u/katkip

Now it is not jumpscary
u/384.cz

#alien #babble

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Exca

remix of d/6153 by u/BackendForth

function u(t) {

c.width|=0
for(i=77;i--;){q=i%7
if(('¾i989i¾'.charCodeAt(e=i/7|0)>>q)%2)x.fillRect(e*90*S(t)+900+S(t)*280,-q*90+840+C(t)*180,90,90)}

Jan 17 2018 9:15 PM UTC

}// 136/140

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u/joeytwiddle

#alien #spaceinvaders #sprite

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Xen

remix of d/3167 by u/Xen

function u(t) {

for(i=c.width|=0;i--;x.fillRect(960+S(p=.9*i+S(t)*3e3/i*S(t))*(d=i*i/1e3)-i*C(t),540+C(p)*d-i*S(t),s,s))x.fillStyle=R(Z=t*i%255,s=i/5,255-Z)

Jan 2 2018 9:31 PM UTC

}// 140/140

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Show more comments…
u/jbl

WOW! 💯
u/lionleaf

Testing new links u/Xen
u/Xen

Yay! d/5309
u/donbright

i would have said this was impossible if i didnt see it
u/lionleaf

#alien #needle #color #floppy #rotation
u/sybarita

Yo what ... this is amazing
u/mrperson59

Is this what sleeping beauty pricked her finger on?

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keithclark

function u(t) {

for(a=c.width|=0,G=36,J=S(t)/4;a--;'p}¶¼<¼¶}p'.charCodeAt(Y*C(t)+G-X*J&15)>>(X*C(t)+Y*J+t*G)%15&1&&x.fillRect(X*G,Y*G,G,G))X=a%53,Y=a>>6

May 3 2017 1:26 PM UTC

}// 138/140

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fullscreen rotozoom

u/joeytwiddle

#spaceinvaders #rotozoom #alien
u/yonatan

3-char shorter transposed bitmap (just posting so I won't forget it): 'ĄǼͶ߿׽ԅØ'

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5Mixer

function u(t) {

i=w=c.width=1920
x.font="7em ῦ"
n=150
x.fillText("👾",n,200)
x.fillText("🐄",n,S(t*5)*n+600)
while(i-->0)x.fillRect(i,1e3,1,S((i+n)/n)*70-n)

Feb 28 2017 9:09 AM UTC

}// 138/140

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Plz put me down alien.

u/5Mixer

This was just a quick one, didn't spend too much time golfing. Interesting but minor discovery, use em as the unit in font size and you might not have to go into double digits.
u/iverjo

Thanks for the tip :)
u/joeytwiddle

#emoji #funny #scene #cow #ufo #alien

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