Dweets awesomed by u/iverjo

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: #Food

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joeytwiddle

remix of d/2355 by u/cantelope

function u(t) {

x.save(),x.translate(960,540);for(i=95;i--;x.fillStyle=`hsl(${i*6-t*99},99%,60%`,x.fillRect(a=i*i/9,a,-a*2,-a*2),x.rotate(t/3));x.restore()

Apr 27 2017 4:54 PM UTC

}// 139/140

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Minor remix that shows off the patterns in the spiral, as pointed out by sfz on the original dweet.

u/magna

Wooo!
u/joeytwiddle

Oeps too fast again! t/19 might look smoother for you

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magna

remix of d/2611 by u/magna

function u(t) {

for(i=c.width=w=192;i--;)for(j=w;j--;b=i%8^(X+Y&1^f)*7,'ưưƠƀÃÇÏÏ'.charCodeAt(j&7)-w&1<<b^f<<b&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3,f=t*X/Y&1

Apr 27 2017 4:38 PM UTC

}// 138/140

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Refactoring to make code more readable (!)

u/magna

#truchet

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rileyjshaw

remix of d/2619 by u/rileyjshaw

function u(t) {

c.width|=0
x.globalCompositeOperation=C(t*=2)<0&&'xor'
for(i=2;i--;x.fill())
x.beginPath(),x.arc(960-S(t)*540*i,540,(2-i)*100,0,7)

Apr 27 2017 3:47 PM UTC

}// 130/140

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Bit of golf…

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rileyjshaw

function u(t) {

c.width|=0;for(X=2e3;X-=40;)for(Y=2e3;Y-=40;s=(1+T(C(X/40+t)*C(Y/3+t)))*20,s=s<34?0:s,x.fillRect(X-s/2,Y-s/2,s,s))x.fillRect(X+19,Y+19,2,2)

Apr 27 2017 6:53 AM UTC

}// 139/140

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joeytwiddle

remix of d/2600 by u/joeytwiddle

function u(t) {

t?c.width|=0:P=Z=5;for(i=36;i--;j==Z&&(X-1e3)**2<8e3?Z=9:Z?onclick=e=>Z--:P++)j=i>>2,x.fillRect(j?X=j%5*(t/19+i)*P%2e3:1e3,99*(j||Z),99,50)

Apr 27 2017 4:03 AM UTC

}// 139/140

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Crossy Box: Traffic Tourist

Show more comments…
u/joeytwiddle

I wanted a new seed for the next level but I only had space for P++. Fortunately we can do P++ on every iteration of the loop, until Boxy gets hit by an invisible car on row 0.
u/joeytwiddle

(Actually around 6 chars could be saved if we scale the canvas down, like MrM@_S did in his remix.)
u/MrM@_S

Replacing rectangles with 🚗s also saves bytes.
u/joeytwiddle

I can get 🚗 and 🐸 in ... 141 bytes ;)
u/joeytwiddle

Correction: The scene changes when Boxy get hit by the last car in row 1. Cars in row 0 do not re-assign X (and do not move).
u/iverjo

This is awesome :D A game in 139 bytes, and I actually enjoyed playing it!
u/joeytwiddle

Thanks iverjo! ❤️ Click 5 times to start playing

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magna

remix of d/2604 by u/magna

function u(t) {

for(i=c.width=w=192;i--;)for(j=w;j--;!!('ưưƠƀÃÇÏÏ'.charCodeAt(j&7^f*7)-w&1<<(i%8^(X+Y&1)*7))^f&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3,f=t*X/Y&1

Apr 26 2017 10:17 PM UTC

}// 139/140

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Filled truchet tiles, now animated thanks to shaving by @donbright

u/donbright

the thing that strikes me is the black and white balls never move, only their connections.... but it looks like the whole plane is aliv
u/magna

@donbright To achieve that: Starting with a single tile, every other tile is flipped on the X axis. And then to flip a tile, I need to both invert the tile's pixels and also to flip it on the Y axis. Lots of XOR was needed :)
u/sigveseb

Excellent
u/iverjo

#dots
u/magna

#truchet

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New_Core

function u(t) {

i=h=c.width|=0;d=~~(h-t%30*60);while(i--)x.fillRect(i,a=700+200*S(t+i/599)*S(t+i/-80),1,h),i==d?b=a:0;x.font=8+'cm a';x.fillText("⛴",d-99,b)

Apr 26 2017 8:04 PM UTC

}// 140/140

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u/magna

I don't see the boat. Chrome on macOS.
u/magna

Ah, I see it on Chrome on Windows though. Nice!!!
u/New_Core

font maybe to big for macOS, try change it to 5 cm or so, might work
u/magna

6 works on macOS
u/New_Core

#water
u/New_Core

#sea #ocean

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rileyjshaw

function u(t) {

for(n=200,c.width|=0,i=2e3;i--;x.lineTo(i,540-S(t*i/n)/t*n*n))x.fillStyle=R(S(t)*n,S(t+2)*n,S(t+4.2)*n);x.fill()

Apr 26 2017 7:56 PM UTC

}// 112/140

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Stripey wiper

u/iverjo

+1 for the novelty

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rileyjshaw

remix of d/2601 by u/rileyjshaw

function u(t) {

t*=s=60
x.beginPath()
for(x[g='globalAlpha']=1;t&&o<t;x.lineTo(m+q,S(o)*o+q))m=C(o+=.04)*o,q=S(2*m/s)*s
x.stroke();x[g]=.1;x.fill()
o=t

Apr 26 2017 6:10 PM UTC

}// 135/140

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u/magna

Neat!
u/donbright

fullscreen highly recommended, very cool texture

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magna

remix of d/2594 by u/magna

function u(t) {

w=c.width=192;for(i=w;i--;)for(j=108;j--;'PP`ĀCDHH'.charCodeAt(j&7^(t/w*X*Y&1)*7)-64&1<<(i%8^(X+Y&1)*7)&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3

Apr 26 2017 5:10 PM UTC

}// 138/140

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Truchet tiles #2

u/magna

@todo: filled version
u/magna

Filled version: https://www.dwitter.net/d/2604
u/iverjo

#dots
u/magna

#truchet
u/katkip

#tagfail

dwitter.net | iverjo (56085)