New Terrain Generator

[uzurpator]

It should work in similar fashion.

Delta(0-255) / Trunc(0-255) / Patch size(0-255)

ferinstance cht:landgen 10 60 200

I remember chagning the patch wiki to include new values...

[Mickeye]

I see, the range for roughness parametr was changed. Ok, thanks for quick response.
M.

[Deblaauwn]

When should we expect a wiki update? I tried some values, and it appears that having a value for Patch size < value Trunc gives a lockup.

[minime]

I remember chagning the patch wiki to include new values...

I'm sorry, but what is it you remember changing on the wiki? Because as much as I try, all I can see in the history of the LandGen documentation page is the first version written by DaleStan.

[Deblaauwn]

maybe he meant to say 'I should remember'

[uzurpator]

I _did_ change the wiki. Dunno why the changes are not listed tho :/

[minime]

Well, for some reason they don't show up in there. Could you please do it again?

[DaleStan]

Probably, you either failed to click "Save changes", or did so after your session timed out.

[minime]

I _did_ change the wiki.

Looking at the history, I still can't see any updates. Could you please do that, instead of debating the reasons why your last attempt did not succeed?

minime

[Deblaauwn]

Maybe it's possible to add a quantity-of-trees bit to the cheat? When I generate a map most cities are surrouded by dense woods, so I can't terraform followed by planting trees to make the local authority happy again.

[DaleStan]

Maybe it's possible to add a quantity-of-trees bit to the cheat? When I generate a map most cities are surrouded by dense woods, so I can't terraform followed by planting trees to make the local authority happy again.

That shouldn't be to hard, but I won't touch that code until it agrees with the documentation, except possibly to roll back to the most recent version that did what the docs say it should do.

If someone else wants to fix the documentation instead, then by all means, do so.

[George]

As we remember trgir.grf has some landscape templates (sprites 52-88), which were used by default land generator.
New industries, like castles, require specific landscape to be build.
So, I would like to suggest the following idea for the new land generator:
A GRF can provide some landscape templates (in the same format as trgir.grf for example, or in a more complex format that can also specify water, trees, desert) and the map generator reads and applies them on the generated map and than places specified industries on these specially prepared places.

Would it be hard to do?

[richk67]

It may be of interest that in OTTD when we created the Terragenesis generator, I also had to add code to prepare ground sites below industries. Otherwise, with rough terrains, almost no industries were placed (or they congregated en mass onto the arctic plateaus etc.)

[George]

It may be of interest that in OTTD when we created the Terragenesis generator, I also had to add code to prepare ground sites below industries. Otherwise, with rough terrains, almost no industries were placed (or they congregated en mass onto the arctic plateaus etc.)

Can grf manage that place? For example, if the industry requires sloped land inside town, would it be prepared inside town?

[richk67]

All the ground sites for industries in OTTD were flat land, so it wouldnt work for your rather nice, but exotic terrain requirement for the castle. All the coding for it was done directly... no newgrf was required then.

[George]

All the ground sites for industries in OTTD were flat land, so it wouldnt work for your rather nice, but exotic terrain requirement for the castle. All the coding for it was done directly... no newgrf was required then.

Would it be possible to improve the code to work with predefined sloped land?

[richk67]

I see no reason why you couldnt use something similar to the Prop 23 Placement Mask I developed for use with my NewGRF airports. It allows definition of a required land shape. All that would be needed would be a) TTDP support, b) OTTD to support the format within its main industry placement code.

I would suggest that if the terrain meets all other requirements, and can be terraformed to the required shape, then it should auto-terraform it. But it isnt at all straightforward. (Currently, I have only added land/sea placement difference. I intend to add height requirements to the NewGRF Airports to allow for more irregular shapes, but its a low priority even in the NewGRF_ports branch.)

[DaleStan]

You're confusing two different things. "Industry placement", and "force generator to make a land shape where the industry can be placed".

[richk67]

Err... nope. No confusion here.

George said earlier:

A GRF can provide some landscape templates (in the same format as trgir.grf for example, or in a more complex format that can also specify water, trees, desert) and the map generator reads and applies them on the generated map and than places specified industries on these specially prepared places.

So, the template (ie. Placement Mask) is read from the .grf, and used by the landscape generator to prepare places for the industry placement. It sounds exactly the situation - George wants to have a way of auto-terraforming to prepare places for industry placement. Or at least thats how I read what he was after...

[George]

So, the template (ie. Placement Mask) is read from the .grf, and used by the landscape generator to prepare places for the industry placement. It sounds exactly the situation - George wants to have a way of auto-terraforming to prepare places for industry placement. Or at least thats how I read what he was after...

Yes, that is the way I suggested. But it may be not the unique solution.
It is possible, theoretically, have auto-terraforming that terraforms land when the industry is being build. But how would it found, what terraforming should it use?

Just to clarify things. The AIM I have is to help random map generator to place "exotic" industries. The way to do it is not important for me.