Dweets awesomed by u/sandromiccoli

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: #ScaryMovies

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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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rodrigo.siqueira

remix of d/23860 by u/taupelink

function u(t) {

for(i=k=999;--i;x.fillRect(700-i*Y,k+v*i,19*q*X*v,Y*i*v))f=i*t,X=f%3-1,Y=X*f%7-2,x.fillStyle=R(q=i*X/t,q*=X/t,q*=Y**3*3*q/i/X,i/q/q),v=.5**t

Sep 16 2021 3:34 PM UTC

}// 140/140

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Way to the Fog City #city

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pavel

remix of d/23829 by u/pavel

function u(t) {

for(c.width=w=128,i=n=9088,t?a[n*t**3&127]=1:a=[],m=a.includes(0,-w);i--;a[i]=t?p&a[r=i+w]<1?a[r]++:r<n|m&&p:0)x.fillRect(i%w,i>>7,1,p=a[i])

Sep 16 2021 3:53 AM UTC

}// 140/140

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#tetris #snow

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u/KilledByAPixel

Genius.
u/Joachim

Wow. This is very clever
u/rodrigo.siqueira

Now I can't look at city buildings without thinking about this. See https://en.wikipedia.org/wiki/Tetris_effect The Tetris effect (also known as Tetris syndrome) occurs when people devote so much time and attention to an activity that it begins to pattern their thoughts, mental images, and dreams. E.g. People who have played Tetris for a prolonged amount of time can find themselves thinking about ways different shapes in the real world can fit together, such as buildings on a street.
u/Xen

love it!
u/magna

Fun to watch! :)
u/tomxor

@rodrigo I think I have The Dwitter Effect, or "Dwitter Syndrome" :D i'm not even joking
u/sigveseb

Nice idea! As an added bonus, if you leave it running for a while you get a graph of the prng bias for free :)

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sandromiccoli

remix of d/23857 by u/sandromiccoli

function u(t) {

for(a=50;a--;)x.beginPath(),x.arc(960+C(s=(137.5*a))*(r=a*t%300*1.5),540+S(s)*r,50-(a*S(t))%50,0,7),x.stroke(),x.fillStyle=`#f00a`,x.fill()

Sep 15 2021 2:03 AM UTC

}// 139/140

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sandromiccoli

remix of d/23856 by u/sandromiccoli

function u(t) {

for(a=66;a--;)x.beginPath(),x.arc(960+C(s=(137.5*a))*(r=a*t%400*1.35),540+S(s)*r,50-(a*t)%50,0,7),x.stroke(),x.fillStyle=`#f00a`,x.fill()

Sep 15 2021 1:24 AM UTC

}// 137/140

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#phyllotaxis #red

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sandromiccoli

function u(t) {

for(a=66;a--;)x.beginPath(),x.arc(960+C(s=(137.5*a))*(r=a*t%400*1.35),540+S(s)*r,50-(a*t)%50,0,7),x.stroke(),x.fillStyle=`#fffa`,x.fill()

Sep 15 2021 1:24 AM UTC

}// 137/140

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#phyllotaxis #b&w

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sandromiccoli

function u(t) {

c.width=-1;for(i=65;i--;)for(j=35;j--;)x.fillRect(i*5,j*5,s=4,s),x.fillStyle=R(o=(C(S(i)+S(j-t)))*1550,o,o,1)

Sep 14 2021 10:45 PM UTC

}// 109/140

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#falling #tetris #pattern

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sandromiccoli

function u(t) {

c.style.background='#000';w=2e3;x.rotate(137.5);x.fillRect(50,0,(50*t)%2500,5);x.fillStyle=R(o=(t%10>5)?255:150,(t%20>15)?255:0,0,0.5)

Sep 14 2021 1:09 AM UTC

}// 134/140

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☀️

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sandromiccoli

remix of d/23844 by u/sandromiccoli

function u(t) {

c.width=2e3;s=24.15;for(i=45;i--;)for(j=45;j--;)x.fillStyle=R(o=(C(i*j+t/2)+S(t)*0.5)*500,o,o,1),x.fillRect(45*s/2*0.75+i*s,j*s,s*0.7,s*0.7)

Sep 13 2021 9:30 PM UTC

}// 140/140

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#mandala

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sandromiccoli

function u(t) {

s=47;for(i=128;i--;)for(j=64;j--;)x.fillStyle=R(o=C(C(i)+j*j+t)*500,o,o,1),x.fillRect(i*s,j*s,s*0.75,s*0.75)

Sep 13 2021 9:00 PM UTC

}// 108/140

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#pattern

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