New #beesandbombs 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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pavel

function u(t) {

for(k=c.width|=w=120;k--;x.rect(j*w+o(t),i*w+o(t-1.6),s=k%2?60:j+i&1&&w,s))i=k>>6,j=k/2&31,o=n=>k%2*w/(2+9e9**C(n-k/1e3))
x.fill('evenodd')

Nov 28 2018 8:17 PM UTC

}// 139/140

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Chessboard Stairs #beesandbombs (simplified)

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u/jylikangas

Another very clever implementation!
u/katkip

This game me a headache
u/katkip

This game me a headache. Nice
u/metamero

great dwitter! [as always] ... why this is so much slower on phone (android)?
u/metamero

great dwitter! [as always] ... why this is so much slower on phone (android)?
u/pavel

It is a bug in the website. I'll see if I can fix it.

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pavel

function u(t) {

with(x)for(c.width|=k=320,scale(9,9);--k;arc(107,60,16*(k>>5)+16/(1+1e5**(.5+k%2-t%2)),a=(t/2-k)%11*.571,a))k%2&&beginPath(stroke())

Nov 26 2018 7:23 PM UTC

}// 132/140

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Walking Spiral #beesandbombs

u/pavel

Using scale(9,9) to get thick lines and shave some digits from coordinate numbers (e.g. 60 vs 540 for height)
u/pavel

x.arc(X,Y,r,a,a) = x.lineTo(X+r*C(a),Y+r*S(a))
u/katkip

Duuude
u/katkip

Awesomeee

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pavel

function u(t) {

for(i=c.width|=0;Y=i-->>6;x.fill(x.arc(((i&62)-Y)*48-o*C(A=~~t/.9549),(Y-2)*83-o*S(A),30,A,A-3,i%2)))x.beginPath(o=i%2*96/(1+1e9**(.5-t%1)))

Nov 25 2018 5:45 AM UTC

}// 140/140

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Sliced Dots #beesandbombs

u/pavel

Golfed 3 loops into one. Lowest bit of i determines half-circle, next 5 bits determine X and the rest determine Y
u/pavel

i&62 = (i>>1)%32*2 = X*2
u/jylikangas

There's a lot of really clever tricks in your dweets. Keep them coming! :)
u/katkip

wow

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pavel

function u(t) {

for(c.width=i=300;j=--i>>1;x.fillText('⚫⚪'[k],29*j-8*s,84+(k*25-1)*Math.tanh(5*S(a))))k=i&1^C(a=j/3-2*t)>0,x.font=(s=1+C(k*a/2)**2)*12+'px"'

Nov 23 2018 8:40 AM UTC

}// 140/140

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Twister #beesandbombs

u/pavel

Getting the white to go over the front but behind the back is so hard! Had to use emojis to save bytes but its janky on some devices.

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pavel

function u(t) {

with(x)for(j=9;--j;)for(i=2<<j,f=6.28/i;i--;fill())for(beginPath(k=2);k--;fillStyle=i%2?'#fff':R())arc(960,540,k*190*j**.5,a=(i+t%2)*f,a+f)

Nov 23 2018 4:55 AM UTC

}// 139/140

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Black and white spinners #beesandbombs

u/katkip

1.5 dimension fidget spinner
u/BackendForth

Looks like a rotary encoder.

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ellisk1

function u(t) {

q=t+20;for(c.width=i=2e3;i--;)x.fillRect(1e3+500*S(a=(q-=.01)+t/9),1280-210*Math.abs(S(q*3.75))+34*(t-q),w=15+5*C(a),w)

Nov 21 2018 6:43 PM UTC

}// 119/140

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Bouncer #beesandbombs

u/aleamb

fucking awesome!

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pavel

remix of d/11101 by u/pavel

function u(t) {

for(f=i=405;i--;f=x[f?'fillRect':'clearRect'](-1,-1,2,2))x.setTransform(s=32+S((i+(j=i>>5)+t)*Math.PI)*16<<f,0,0,s,i%32*99,j*99),x.rotate(t)

Nov 21 2018 6:39 AM UTC

}// 140/140

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Dancing Squares #beesandbombs

u/pavel

This one took a lot of golfing. Calling rotate separately actually saves bytes as it avoids the scale definition / multiplication
u/katkip

!

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pavel

function u(t) {

for(c.width|=s=2;s--;)for(i=25+(t&s);i--;)for(k=6;k--;)x.arc(960,540,!!k*60*(i+s*(t%1)**9)*(2-s)**.5,a=(k+!s/2)*355/226,a);x.fill('evenodd')

Nov 20 2018 7:25 AM UTC

}// 140/140

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Diamondz #beesandbombs

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pavel

function u(t) {

with(x)fillStyle=R(0,0,0,.01),fillRect(0,0,w=2e3,w),setTransform(a=6*S(A=t**9),b=6*C(A),-b,a,A%w,-99),clearRect(0,0,3,w),strokeRect(0,0,3,w)

Nov 20 2018 6:31 AM UTC

}// 140/140

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Strings in yr face #beesandbombs

u/katkip

#web

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pavel

function u(t) {

for(c.width|=i=3;i--;)for(j=35;j--;)x.arc(960,540,(i?i-1?85:150:2e3)*(2+S(i+j%2-4*t)),a=((j>>1)+j%2/2)*2*Math.PI/17,a);x.fill('evenodd')

Nov 20 2018 5:30 AM UTC

}// 136/140

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Star #beesandbombs

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