Dweets awesomed by u/Nosferatu

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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SchuSlime64

remix of d/11680 by u/NullifiedWarp

function u(t) {

c.width=1920;x.fillStyle=R(255,S(t*8)*64+64,64-C(t*5)*128);for(i=0;i<2000;i++)x.fillRect(T(i+t)*700+900,600+S(t+i*4)*200,8,100*S(t-i*8)-200)

Jan 8 2019 6:00 PM UTC

}// 140/140

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wrapped the screen and added changing colors

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Nosferatu

function u(t) {

c.width=700;p=t*50;
for(i=0;i++<80;){p+=10+S((i+t*7)/12.74)*9;q=p/127.4;x.moveTo(320,200);x.lineTo(320+S(q)*190,200+C(q)*190);}
x.stroke();

Jan 6 2019 6:37 PM UTC

}// 139/140

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u/Xen

Nice!

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jylikangas

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡪㵣⹷楤瑨㴴ㄲ⭓⡴⼲⤪㤸㭶㵪ⴭ㰼㌻扥杩湐慴栨晩汬⠩⤩景爨椽㔻椭ⴻ捬敡牒散琨愪愥㜱㈬琪瘥㐰〬椬㌩⥦楬汓瑹汥㵒⡪⼲ⰹ㠭瘬樼㤸㼱㤰⵶㩪⤬汩湥呯⠹㠫匨愽椪㤸⭶⭴⼸⤪瘬㠰⭃⡡⤪瘫瘭樯㈩`.replace(/u(..)/g,"$1%")))

Dec 20 2018 8:08 PM UTC

}// 140/140

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Magical Winter Forest

Show more comments…
u/joeytwiddle

beauty
u/pavel

unreal
u/aleamb

oh man!
u/aleamb

#landscape #winter
u/katkip

cool
u/BuRRak

VERY COOL
u/zanella

OH MY GOD! SERIOUSLY?
u/Xen

Serious Awesomeness!
u/lionleaf

That's insane! Woah!
u/lionleaf

#magic #forest #xmas #snow #purple
u/magna

how do you even
u/andc2600

Amazing
u/donbright

heehee
u/rodrigo.siqueira

#christmas #tree
u/vain

I cant believe what i see from this 140 chars of compressed code. Nice colors and amazing work/execution!!

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pavel

function u(t) {

for(c.width|=i=16,x.scale(2,2);i--;x.moveTo(480,0),x.arc(480-r*S(a=C(40*t/r**.5)),r*C(a),r/16,a-11/7,9))r=4e4/(9+i)**2;x.stroke();x.fill()

Dec 20 2018 7:18 AM UTC

}// 138/140

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#pendulum #waitforit

u/katkip

Nice
u/cantelope

can save a byte by nesting x.fill(x.stroke())
u/katkip

It's better than d/6440

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pavel

remix of d/11455 by u/pavel

function u(t) {

for(r=c.width|=0;--r;)x.stroke(p=new Path2D,p.arc(960,540,r,a=(r+~~(99*t)-t/9)*5**.5/2%(2*Math.PI),a+(x.lineWidth=32)/r))

Dec 19 2018 1:13 AM UTC

}// 121/140

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Black Hole

u/pavel

Deleting %(2*Math.PI) works in Chrome but not in Safari.
u/pavel

Notice that the radius does not change with time. The inward motion is achieved by drawing a smaller radius square next to where the larger radius square was a frame ago.
u/pavel

If the squares were numbered you'd see that the numbers jump around every frame.
u/pavel

I've made an explanation dweet d/11488

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DataMeta

remix of d/9262 by u/DataMeta

function u(t) {

with(x)for(c.width|=i=45;i--;stroke())lineWidth=7,
arc(960,540,Math.abs(480*S(C(t-i)*S(t/3)+S(t/2)*4))+42,i,i)

Dec 17 2018 10:23 PM UTC

}// 110/140

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u/artfarnaa

Excellent

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katkip

function u(t) {

q=t/25;x.fillRect(0,0,2e3,2e3);for(i=500;i--;)x.clearRect(960+S(t-i*q)*(500-i),540+C(t-i*q)*(250-i+S(t)*99),8,8)

Dec 17 2018 6:20 AM UTC

}// 112/140

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#galaxy

u/jamespwilliams

Cool!
u/otomakan

Gorgeous!
u/C010011012

one of the oscillator things with the θ=r*t I see

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jylikangas

function u(t) {

eval(unescape(escape`景爨硛昽≦楬汒散琢崨〬〬眽㙥㌬眩ⱴ⨽㤹Ⱪ㴳㔰㬭⵩㭸⹦楬汓瑹汥㵒⡩ⱸ学崨含⡴☲⤪稭欯㈬夽稪㈫启㈬稯㔫欪㌬稯㠩ⱔ㴹㘰⭓⡓⡴⼹㤩⨲⤪㤹⵺ⰮㄫⅫ⤬硛晝⡔⵺⨳ⱙⱺ⨸Ⱝ琯㤥㤪欩⥺㵷⽩Ⱬ㴡⠭⵴☱㔩⩺`.replace(/u(..)/g,"$1%")))

Dec 11 2018 10:29 AM UTC

}// 140/140

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Ghost Train v2

u/jylikangas

HD resolution, brighter, clean beginning, different tunnel and more complex path
u/metamero

https://youtu.be/kNkvepA4AZU yeah yeah yeah yeah yeah
u/f8f82804

#outrun #ethereal
u/vain

holy cow! How is this possible? Incredible !!!

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