Top dweets by u/robbyg

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: #ScaryMovies

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robbyg

remix of d/15194 by u/robbyg

function u(t) {

for(i=2e3;i--;x.fillRect(X,Y,1,1))d=Math.random()*420,X=960+C(d+i)*d,Y=540+S(d+i)*d,x.fillStyle=`hsl(9,50%,${90-Math.hypot(760-X,400-Y)/7}%`

Jul 30 2019 9:47 PM UTC

}// 140/140

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More realistic shading.

u/robbyg

You can change the position of the "light" by changing the two numbers in Math.hypot(). Also, golfing tips welcome!
u/pavel

Some golf tricks in d/12574
u/aleamb

#shading #sphere
u/Cloud

Render in Blender)

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robbyg

function u(t) {

c.width|=0
for(i=9;i--;)for(p=100;p--;)x.fillRect(560+i*100+p%5*10+S(t)*300,440+~~(p/5)*10+T(t/2-(i/4-p/800))*50,10,10)

Jul 23 2019 1:36 PM UTC

}// 119/140

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Can't seem to hold it together.

u/robbyg

#default

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robbyg

function u(t) {

c.width|=0
for(y=20;x.fillStyle=['blue','gold','red'][--y%3];)for(i=500;i--;)x.fillRect(z=680+i+y+C(t+y/3)*200,200+y*40+S(i/60+z/9)*18,4,4)

Apr 15 2019 9:24 PM UTC

}// 139/140

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First draft of a #beesandbombs wave https://twitter.com/beesandbombs/status/1113…

u/pavel

You want something like for(c.width|=y=20;x.fillStyle=['blue','gold','red'][--y%3];)for(i=500;i--;)x.fillRect(z=680+i+y+C(y/3-2*t)*200,200+y*40+S(z/9-3*t)*18,4,4)
u/joeytwiddle

Tweaked colours and numbers a little: for(c.width|=y=27;x.fillStyle=['#47a','#ec2','#d66'][--y%3];)for(i=450;i--;)x.fillRect(z=680+i+y+C(y/4-4*t)*200,100+y*33+S(z/12-6*t)*18,6,7)
u/robbyg

You folks are awesome. :)
u/katkip

#romania

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robbyg

function u(t) {

c.width|=0
for(i=9;i--;)for(v=200;v--;)x.fillRect(520+S(t+v/1e3)*400+i*100,440+v,50,1)

Feb 5 2019 2:37 PM UTC

}// 86/140

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Peacefully swaying #default

u/katkip

Already done: d/11284
u/robbyg

Yeah, I saw that after scrolling for a while in #default. But it's a different take at least.
u/katkip

^ similar one but this is more smooth
u/lionleaf

I enjoy the default remixes. This one is soothing :)

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robbyg

function u(t) {

for(Y=54,z=20;Y--;)for(X=96;X--;)x.fillStyle=R(h=(X+Y)%2*255,h,h),x.fillRect(X*z-C(t)*z*Y,Y*z-S(t)*z*X,z,z)

Mar 13 2018 7:18 PM UTC

}// 107/140

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robbyg

function u(t) {

for(Y=56,z=20;Y--;)for(X=98;X--;)x.fillStyle='hsl('+(X+Y+t*z*2)%360+',80%,40%)',x.fillRect(X*z-z,Y*z-z,z*C(t+X),z*S(t+Y))

Mar 13 2018 2:33 PM UTC

}// 121/140

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u/aleamb

beautiful dweet!

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robbyg

remix of d/26241 by u/384.cz

function u(t) {

z=r=>8*Math.random()-4
!t&&(a=Array(99).fill(960),b=[...a].fill(540))
for(c.width+=i=0;99>i++;)x.fillText(i,a[i]+=z(),b[i]+=z())

Oct 5 2022 3:37 PM UTC

}// 128/140

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Decompressed and centered, because I haven't posted in a while and this looked fun. #particle #swarm

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robbyg

remix of d/12078 by u/robbyg

function u(t) {

c.width+=X=Y=Z=0;for(i=3e3;i--;Z=X)x.fillRect(X=960+(S(2*Y)-C(2*X+t))*470,Y=540+(S(4*Z)-C(2*Y-t*3))*260,9,3)

May 5 2021 3:45 PM UTC

}// 108/140

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I hadn't played with an #attractor lately. They really play to my strength of "change random stuff until something neat happens".

u/taupelink

That's my method too!
u/lars-erik

Which way is inside out? 😮🤷‍♂️

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robbyg

remix of d/12976 by u/robbyg

function u(t) {

for(X=2e3,Y=t*60,A=.05;X--;x.fillRect(X,Y,1,2e3))x.fillStyle=C(V=Y*A)-S(H=X*A)>C(H)*S(V)?`hsl(${X&Y},50%,50%)`:'#fff'

Jun 10 2020 7:20 PM UTC

}// 117/140

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Updating an old dweet to have color and use the drawing strategy popularized by u/rodrigo.siqueira

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robbyg

function u(t) {

for(X=2e3,Y=t*60,A=.1;X--;)C(V=Y*A)-S(H=X*A)>C(H)*S(V)&&x.fillRect(X,Y,1,1)

Apr 3 2019 5:35 PM UTC

}// 75/140

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A pretty weave #pattern

u/katkip

Huh nice

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