Need for weighed scattering routine

[Krice]

I might as well ask for help to implement a routine which shoud scatter tiles around circular area and use a weight information to put more stuff on center area. Any ideas? My math skills are lousy, so I have hard time trying to figure this out.

[Hi]

Would you like the density to fall off as an inverse square?  Or would you prefer Gaussian?

[Krice]

Would you like the density to fall off as an inverse square?  Or would you prefer Gaussian?

You can decide that.

[corremn]

Would you like the density to fall off as an inverse square?  Or would you prefer Gaussian?

You can decide that.

LOL

[Hi]

I like bell curves because they are easy
if you do this for both the x and the y you will end up with a nice circular distribution of items

R=radius
repeat 2 * R times
{
    flip a coin
    if heads
        position+1
}
position - R/2


Although the possible positions is square, the probabilities is circular and so to your eyes it looks like a circle.

if you really wanted you could force it to be circular by looking at each point
dx means the difference between old x and new x
dy is the same for y
while(dx^2 +dy ^2 is > R^2)
    use bresen's line to move it back toward the center

[Krice]

Sorry, I'm too dumb to make anything out of that pseudo code. Anyway, I decided to try flood fill and randomly skip seeds to create irregular shape (it would be always diamond shaped without that). I think it's working nicely and I could add that weigh part using the iteration count to determine the rough distance from the center. I'm only looking a way to create stuff like lakes and forests, or scattered rocks, anything like that.

[Hi]

That should work, the best algorithm is the one you understand perfectly.