"Pinning" and filling around existing content?

[boristhebrave]

"Pinning" and filling around existing content?

[BorisTheBrave]

You can add some lake samples, then call MultiplyFrequency to set the frequency of the the lake tile to zero. Then it is legal to place, but WCF will never choose to place it (unless it is the only legal placement). In your case, you still want rivers to be placed, so you'll want two different tiles, one for lakes and one for rivers.

I'll have a think about if there's a neater way to do things like this. Perhaps an option on Select that lets you ignore compatibility?

[justonia]

I'll give MultiplyFrequency a shot with some special tiles. Being able to force Select into setting a tile might be a good quick way to accomplish this. Combined with #2, you'd end up having a lot of new controls on how content gets generated.

[BorisTheBrave]

Ok, I've had a thought about what you want. I think you won't find adding holes alone sufficient. Holes would be totally ignored, you want a tile to influence other tiles, but not be influenced itself. I think it'll be possible to set up another bit field for that behaviour.