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Mapgen: limit amount of desert in sub-Tropic #4313

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DorpsGek opened this issue Dec 19, 2010 · 18 comments
Closed

Mapgen: limit amount of desert in sub-Tropic #4313

DorpsGek opened this issue Dec 19, 2010 · 18 comments
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bug Something isn't working flyspray This issue is imported from FlySpray (https://bugs.openttd.org/) stale Stale issues

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@DorpsGek
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George opened the ticket and wrote:

R21503

OTTD generates much more desert tiles in comparison to TTDP. Here is the typical sample. The percentage of desert tiles should be reduced

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Reported version: trunk
Operating system: Windows


This issue was imported from FlySpray: https://bugs.openttd.org/task/4313
@DorpsGek
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George wrote:

Also amount of cactuses in desert is lower


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9270

@DorpsGek
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SmatZ wrote:

I tried both terrain generators, and I can't reproduce the behaviour you described. Perhaps try setting different generator parameters.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9274

@DorpsGek
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Krille wrote:

r21539

It happens with e.g. these options.

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This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9277

@DorpsGek
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Rubidium wrote:

Using different algorithms and settings makes OpenTTD behave very differently from Transport Tycoon Deluxe. That's exactly what they are meant to do.

The "rules" for when something becomes desert or rainforest is still the same:
* desert is everything not close to water or tiles at height 4 or higher
* rainforest is everything not close to desert.

So, when you generate a low map, then lots of the map will automatically become desert. Transport Tycoon Deluxe generated higher maps which gives you more places with rainforests.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9278

@DorpsGek
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George wrote:

What settings should I choose to get the map similar to TTDP's one?

Also, this

  • desert is everything not close to water or tiles at height 4 or higher
    sounds strange, because there are map areas in TTDP game, that much this criteria, but are not the desert. So this rule is different to TTDP? If no - why do I get the different result?

This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9282

@DorpsGek
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George wrote:

My config if it would help

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This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9283

@DorpsGek
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George wrote:

Even trying original map generating algorithm in OTTD i do not get the map, looking like TTDP.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9284

@DorpsGek
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George wrote:

Also "variety distribution" option increases areas of desert


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9285

@DorpsGek
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Rubidium wrote:

With the "default" Transport Tycoon Deluxe settings I'm getting similar maps (roughly same amount of desert, i.e. some 40-ish% of desert) compared to your TTDPatch map. Although, TTDPatch has its own new map generator as well. That on itself means that OpenTTD might behave differently and still is working like Transport Tycoon Deluxe, just not like TTDPatch. Not working 100% like TTDPatch is not an issue at all as we never pretended to be a game based on TTDPatch, and as such don't try to implement everything from TTDPatch.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9287

@DorpsGek
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George wrote:

We are getting away from the original question. It was not why OTTD and TTDP generators are different, but why there is so much desert and how to provide less of it. "The percentage of desert tiles should be reduced" to be exact.
As you said, original map generator in OTTD generates less than 40% desert, while OTTD map generator provides much more desert. Would it be possible to reduce the amount of desert generated to the this < 40% level? May be somehow to improve the rule

  • desert is everything not close to water or tiles at height 4 or higher
    May be not apply it if there is 40% desert already?

This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9288

@DorpsGek
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Alberth wrote:

Why must there be less desert?

It makes that tropical is a more different climate, with large stretches of nothings. If you want a more filled climate, play any other climate.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9290

@DorpsGek
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George wrote:

Why must there be less desert?

Because it was like that in TTDP and TTD.
The main thing, that I do not like with it, that in TTDP desert was an area, and in OTTD it is a layer between sea level and rain forest level (so a road from sea shore to forest crosses desert). This flooded style of desert annoys me :( see the TTDP.png in the first post - the desert is large there, but it is an area, not the layer.


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9298

@DorpsGek
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mb wrote:

@george,

is that "TTDPatch map" generated with

experimentalfeatures.newterraingen off

?


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9301

@DorpsGek
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George wrote:

No

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This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9302

@DorpsGek
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George wrote:

Could TTDP's newterraingen code for desert generation be used in OTTD?


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment9303

@DorpsGek
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srkunze wrote:

I agree with George on this issue. I have beautiful memories of sub-tropical terrain type. It was the contrast that made it special and very entertaining and challenging.

When generating a map with OpenTTD 1.5, huge and mountainous rain-forests are not possible anymore. Besides the 7-tiles-wide band at the shore looks quite artificial. :(

What can we do here?


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment14119

@DorpsGek
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andythenorth wrote:

Tropic map generation is flawed IMHO. I 'fixed' it by substituting the temperate generation code. https://www.tt-forums.net/viewtopic.php?f=33&t=74647


This comment was imported from FlySpray: https://bugs.openttd.org/task/4313#comment14513

@DorpsGek DorpsGek added Core flyspray This issue is imported from FlySpray (https://bugs.openttd.org/) labels Apr 7, 2018
@frosch123 frosch123 removed the Core label Apr 14, 2018
@andythenorth andythenorth added the stale Stale issues label Jan 5, 2019
@andythenorth
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Thanks for this. There's been no activity on this for some time, and as it stands, it doesn't look likely that it will go any further. I'm closing it as we try to keep the issue count low for OpenTTD, it helps us focus on things that are important and fun. Feel free to discuss in irc or request re-opening if you disagree. Thanks for contributing!

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