Create a new forested mountain terrain

[kaputtnik]

On widelands forum is a question on making a forested mountain terrain: https://wl.widelands.org/forum/topic/1850/

The main reason for this new kind of terrain is to have something like a treeline on mountains to imagine a high mountain.

- Those terrains needs a modified tooltip: For previous mountain terrains we have a tooltip like "[string of /world/terrains/init.lua -> descname] + mountainous and treeless". We have to consider to change this into something like "[string of /world/terrains/init.lua -> descname] + arable for mines"; the possibility of growing trees would then be in the descname and the automatic complement would only reflect what kind of buildings could be used on this terrain.

- Terrains affinity should be (temperature/humidity/fertility):
  - a: 50/0.75/0.5 -> only coniferous trees
  - b: 50/0.75/0.3 if we want trees to grow with more difficulty
  - c: temperature of 70 if we also want some of the more adaptable deciduous trees to grow there to some extent.

I would prefer a; only coniferous trees should grow.

There is first graphical attempt for such a terrain in the forum: https://wl.widelands.org/forum/post/15206/

[king of nowhere (lainluigi86)]

various suggestions i've been asked to repost here

for winter it's hard to make another combination of white and brown look distinctive. maybe a combiination of white, brown and grey, like a mix of mountain1 with tundra3. values could be 35 0.75 0.3 same as taiga, we want it colder than tundra but we want trees to grow on it. or maybe 35 0.75 0.4 if we want it mmore tree-friendly.

for wasteland I can't really say about colors, but a mix of hard ground and mountain should be fine. not sure about values, because coniferous trees don't fit well with wasteland environment. could be 80 0.4 0.8, a bit cooler but fine for adaptable trees, and wet enough that even some summer trees could grow there. but too dry for coniferous. 70 0.5 0.75 should yield an even mixture of coniferous, wasteland and summer trees. could be interesting to see.

For desert it is pretty straightforward, the brown or red of the mountain with the green of meadow. being colder than desert, summer trees should grow on it, although it should be more dry than most summer terrains; we could try with 120 0.5 0.5

EDIT: the name of the terrain could be forested mountain, or mountain foothill, or mountain valley floor. foor the editor tooltip, now saying "mountainous and treeless", it shoud spel simply "mountainous", since arable grounds do not make distinctions with treeless and forested. or, if we want to add a tree-friendly in the tooltip, it should be implemented on the arable terrains too.

[kaputtnik (franku)]

Thanks :-)

The changes i've formerly made are placed in the linked branch (see the "Related Branches" above).

[kaputtnik (franku)]

Tree friendly terrain for desert

[kaputtnik (franku)]

Screenshot without trees to compare the new terrain with mountain meadows.

[king of nowhere (lainluigi86)]

this (sheet 2) is an extimate on the growth of trees on specific terrains.

[GunChleoc (gunchleoc)]

Fixed in build19-rc1.