Dweets awesomed by u/mxfh

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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magna

remix of d/24019 by u/magna

function u(t) {

w=c.width|=0
h=1080
A=S(t/5)+2
Z=S(t/7)+3
x.setTransform(k=C(A)*Z,z=S(A)*Z,-z,k,w/2,h/2)
for(i=w;--i;)x.fillRect(i-w/2,-h/2,1,S(i+Z-A)**2*h)

Oct 7 2021 4:57 AM UTC

}// 140/140

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yonatan

remix of d/23968 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𦀽𭀿𦀫𬠪𝐰𞠰𒡦𫱲𚁩👨🐳𝐰𚰱𞐹𚡃𚁴𚠴𚱘𙐱𚑼𜀻𛐭𪐻𮀮𩡩𫁬𤡥𨱴𚁴🱘𛑷𚱷𚡲𞡩𚠶𛑨𛁴🰶𜀰𚰨𬠪𞀥𝁼𜀿𪐭𪀺𪀭𪐩𞡲𚠱𜀸𜀬𭀿𭰺𪀬𭀿𜰺𪀯𝰩𚑲👍𨑴𪀮𬡡𫡤𫱭𚁷👩𛰴𚐬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𪀯𝀭𪐯𜠬𬠪𞐹𛁴🰰𞠹𞐩`.replace(/u../g,'')))

Oct 1 2021 12:56 AM UTC

}// 130/140

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u/magna

OMG!
u/danny@hille.dk

Very impressive, and beautiful
u/sigveseb

The way the sky and the water go together

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KilledByAPixel

remix of d/23964 by u/KilledByAPixel

function u(t) {

X=t?X+r*50:0
for(i=h=350+199*C(t*4+X%1)|0;--i;x.fillRect(t?X-w+w*r:i*8,t?600+(r*8%4|0?i-h:h-i):r*1080,t?w:500,t?2:r*2))r=Math.random(w=i/4)

Sep 30 2021 11:28 PM UTC

}// 139/140

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Tree Lake #uncompressed

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u/rep_movsd

#art
u/magna

This is #art in several different ways.
u/magna

You could have waited a day and post this as #inktober
u/danny@hille.dk

Love it!
u/sigveseb

Stunning!
u/smtsjhr

wonderful
u/FireFly

awesome \o/

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rodrigo.siqueira

remix of d/23920 by u/taupelink

function u(t) {

for(i=k=780;--i;x.fillRect(k-i*Y,k-v*i,80*q*X*v,Y*i*v))f=i*t,X=i*f%3-1,Y=X*f%4-2,x.fillStyle=R(q=X*X/t,q*=i*X,q*=Y**3*t*q/i/X,i/q/q),v=.5**t

Sep 25 2021 9:26 PM UTC

}// 140/140

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Northern lights at the horizon

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taupelink

remix of d/23860 by u/taupelink

function u(t) {

for(i=185;i--;x.fillRect(250*X,80*Y,q/t**t,i*C(Y/6)/t))f=i*t,X=f*f%8,Y=X*f%15,x.fillStyle=R(q=i/(.5+S(2*X)*Y),q/=S(Y)+X/3,q=i/Y-q,1e5/Y/q/q)

Sep 23 2021 5:23 PM UTC

}// 140/140

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d/23903

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KilledByAPixel

remix of d/23876 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪍼󟝳󟝧󟝪󟜰󞼫󚽪󟌸󞼩󩭯󬬨󭼽󪜽󝍥󜼬󬜽󪬭󜬬󮌮󩭩󫍬󤽴󮝬󩜽󤬨󭬽󬜿󞜹󛝪󚬱󝜺󭼬󭬬󭬩󛍤󟝪󚬹󞜫󭌪󜬰󚭱󚬪󜭼󜌻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚍩󚭪󛍱󟽪󟬱󟼲󝜰󚽧󚬲󚽪󚭪󚬱󝬺󜌺󬬪󜜵󛍪󛍱󟽷󞬲󚜩󩼫󟝳󟜨󬬽󚼫󩌪󚬱󛬳󚬱󩜹󙜴󜌩󟌴󟽲󛜲󞭳󛝧󛼲󩜳`.replace(/u../g,'')))

Sep 20 2021 2:50 AM UTC

}// 139/140

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Parallax Mountains ⛰️

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u/KilledByAPixel

These are non-repeating mountain ranges, using a similar formula used in my #JS13k game Space Huggers
u/rep_movsd

#parallax #landscape
u/rodrigo.siqueira

The first game where I saw this effect was in Moon Patrol, I liked it a lot, it was great and also had a great music. I think it would not be difficult to recreate Moon Patrol from this Dweet.
u/andrea270872

moon patrol ate so many of my coins!! :D
u/tomxor

Pretty sure I first saw the effect in StarRay (Atari ST), I think I enjoyed the music more than the gameplay, no coins though :P
u/vain

Very cool and smooth paralax landscape

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pavel

function u(t) {

for(i=420;r=--i>>2;i&3||x.beginPath(x.fill()))x.fillStyle=`hsl(177,42%,${90-3*r}%`,x.arc(960,580,24*r,a=(i*2-.5+(~r%2|1)*C(t-r/9))/.9549,a)

Sep 8 2021 11:34 PM UTC

}// 139/140

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3x33 [A] by twitter.com/tequibo

u/rodrigo.siqueira

What is Pavel's Twitter account?
u/pavel

twitter.com/pavelbahilov I have plans to post but I don't currently

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pavel

remix of d/23765 by u/New_Core

function u(t) {

for(c.width|=i=w=640,t?x.font='5in"':r=new Date;j=--i>>4;x.fillText(String.fromCodePoint(127812+i%16),j*w-w,(r*j+i+9*p/(1+w**p))%16*w))p=t-j

Sep 7 2021 2:36 AM UTC

}// 140/140

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#slots

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u/pavel

Have to time it juust right :)
u/New_Core

nice
u/danny@hille.dk

Man - that is some next level golfing-fairy-dust you have used here :-)
u/pavel

Aw, its broken on iPhone, the font name trick doesn't seem to work.
u/anshu

rrr
u/lewdev

How? This is really cool.
u/joeytwiddle

I remember on some devices, fonts over a certain size just don't show. A workaround is to use a scale transform, or reduce the canvas size.

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rodrigo.siqueira

remix of d/23749 by u/rodrigo.siqueira

function u(t) {

for(i=k=780;--i;x.fillRect(k-i*Y,k-v*i,80*q*X*v,Y*i*v))f=i*t,X=i*f%3-1,Y=X*f%4-2,x.fillStyle=R(q=i*X,q*=X*X/t,q*=Y**3*t*q/i/X,i/q/q),v=.5**t

Sep 6 2021 1:32 PM UTC

}// 140/140

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All the colors of a sunrise

u/taupelink

nice!
u/rep_movsd

Try swapping around the r, g and b values - b, g , r and g, r, r look pretty realistic
u/rodrigo.siqueira

u/rep_movsd please paste the colors (q=...?) that you found so I can try your suggested combinations, thanks!

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taupelink

remix of d/23760 by u/taupelink

function u(t) {

for(i=q=k=810;--i;x.fillRect(k*X,k-q*Y,-i/v,q*Y/v))f=i*t,X=f*f%5,Y=X*f%4-2,x.fillStyle=R(s=q+i*Y*.4,q^=-s,q^=255,(k+q)*(Y+3)**2/4e4),v=4**t

Sep 6 2021 6:21 AM UTC

}// 139/140

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d/23766

u/rep_movsd

You need to write a blog about this particular technique
u/taupelink

i'd like to, but it would take time (i'm a super slow writer) and it's honestly not a priority at the moment. I can at least say this: Part of how I get four vertical bands is having Y range from less than -1 to greater than 1 (in this case, -2 to 2). Multiplying or dividing by Y then has four effects: stretch or compress, do or do not reverse sign
u/rep_movsd

A one page breakdown would be nice, or perhaps I'll write one
u/taupelink

ah ok...like a line-by-line explanation? that's doable...i'll write something up next weekend!

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