Unchop?

[Jaybe]

Jaybe, I had a forest grow on the diagonal at the end of a chain of woods in my capitol BFC last night

WONDERFUL! I can't wait to experience similar bliss.
Hopefully, I will confirm it here once I do. Until then, I will continue to look for it as long as I am playing civ4.

[sowings]

Originally posted by Blaupanzer
By the way, welcome to Apolyton, sowings. You sound like you may be a veteran of the Civ-franchise of games.

Yep, that's true. I first played when it was "the sum of your win-loss ratio and your GPA is a constant" during my freshman year of college. In I was master of the "bait" city--a target for nukes, without its own SDI, but within range of a sister city's protection. In the CTP games, I was perhaps overfond of space and sea cities. In I was a siege weapons collector.

But now I'm learning that I don't know squat!

[Albin]

I looked at the code. Here my results:

- If there is a unit on the tile, there is no feature growth
- Only tile from cardinal directions (north, east, south, west) increase probabilty of feature spread.
- Base probability is: forest: 8, jungle: 16, preserved feature: 64
- this gives a maximal forest: 32, jungle: 64, preserved feature: 256, when all 4 tiles arround have the same feature
- then multiply this probability with FEATURE_GROWTH_MODIFIER from GlobalDefines.xml (=25) in this way: (25+100)/100 or if there is a road, multiply instead with ROUTE_FEATURE_GROWTH (-50) in this way: (-50 + 100)/100
- this gives max. probability for forest: 40, jungle: 80, preserved feature: 320 without road
- A random number between 0 and 10000 must be smaller then this calculated probability --> maximal probability for forest: 0.4%, jungle: 0.8%, preserved feature: 3.2%

But I don't know, if this calculation is per year or per round.

[Theben]

I usually wind up keeping a few forest tiles around every city that has them. While early in the game I'll wait to see if forest re-grows, later on I need those tiles for my city!

[sowings]

Originally posted by Albin
I looked at the code. Here my results:

Cool, thanks for digging that up. I tend to "optimize" the map by wedging BFCs right up next to one another, and putting roads everywhere inside the BFC. Now I'm learning that it's not such a good idea!

[Blaupanzer]

Okay Albin, does that mean forests will regrow on the diagonal at some odds. Alternatively, is my game somehow mesmerizing me into believing that that same forest tile on the diagonal from the only other forest in its 8-tile adjacent set has regrown twice and been chopped 3 times, although, per the code, that regrowth is not possible?

Speaking of the good Dr. Hoffman (as Solver did the other day), has someone been spiking my punch?

[Nikomakkos]

Sowings, I think you should not plan your empire and strategy around the off chance that trees might grow. There's a possible small benefit if you do that, against much bigger definite and immediate benefits.

[joncnunn]

There's a few areas you might want to consider but not much.

Try to avoid roads in all flat tundra without direct access to fresh water especaly pre 1800 AD. And if you have such a tile that's next to a forest outside all city radi, don't chop that forest outside the radi but instead plant a forest preserve there.

[Blaupanzer]

joncunn, what is the point of planting a forest preserve outside of all city radii? Is this one of those "avoid global warming" strategies? Additional forest that no city is using seems like less than a footnote on how to win the game.

[rjmatsleepers]

Originally posted by Blaupanzer
joncunn, what is the point of planting a forest preserve outside of all city radii? Is this one of those "avoid global warming" strategies? Additional forest that no city is using seems like less than a footnote on how to win the game.

As I understand it, you can get the benefit from a forest preserve even if it is outside the fat cross. (If I'm wrong, I've been wasting my time for a quite a few games - which wouldn't be the first time .)

RJM

[Theben]

I do believe you are wrong. However I also build forest preserves outside of my BFC, in hopes of more trees growing. It also gives my workers something to do.

[Jaybe]

(deleted ... I was just repeating a previous post (#14))

[rjmatsleepers]

Originally posted by Theben
I do believe you are wrong. However I also build forest preserves outside of my BFC, in hopes of more trees growing. It also gives my workers something to do.

Just checked on a previous game, and it appears that you are right. Oh well

RJM

[sowings]

Originally posted by Nikomakkos
Sowings, I think you should not plan your empire and strategy around the off chance that trees might grow. There's a possible small benefit if you do that, against much bigger definite and immediate benefits.

Well, I certainly haven't planned on any tree growth, but in the past I basically *never* chopped trees--only cleared jungle. This latest game, I've instead started to chop (and whip) aggressively. I did, however, leave some "first growth" forests in a checkerboard pattern at the edge or just outside of the BFCs for my "builder" cities. I had quite a few forest repops over time. And when I was able to build preserves (even those outside of the BFC), it only increased the regrowth rate!

[SvenVvath]

Errr.... I've had forest grom on developed tile. It was either incense or deer. Can't remember which one.

Can someone verify this for me?