Arched bridge planning bug - too steep

[Wilczan 2,048]

Hello

 

I tried to plan a bridge to this location, Both sides are on the buildings.

 

 

Quote

[10:33:59] You carefully place the dioptra on its tripod in front of you.
[10:34:11] Looks like bridge would be 1x21 (North-South)
[10:34:11] The tile border to your North is level
[10:34:11] You make sure the dioptra is level.
[10:34:24] You point the dioptra at Kuciak.
[10:34:37] You wave at Kuciak.
[10:34:37] You line up the dioptra with Kuciak.
[10:34:50] You read the graduations on the range pole and work out the height difference.
[10:35:03] The tile border to your helpers South is level
[10:35:03] You check the heights of the plan ends.
[10:35:16] You appear to be 301 dirt lower than Kuciak.
[10:35:16] You work out the orientation and width for the bridge.
[10:35:29] You check for clearance between the bridge ends.
[10:35:42] You check for protruding foliage.
[10:35:55] You check for nearby cave entrances and any lava.
[10:36:08] You check for any items in the way.
[10:36:21] You check that you have permissions to build the bridge.
[10:36:34] You check for any bridges that may interfere with this bridge.
[10:36:47] You check there would be no buildings under this bridge.
[10:37:00] You work out the styles of bridges that would fit.
[10:37:13] You start working out the bridge components required.
[10:37:13] Planned bridge area is 21 tiles long and 1 tile wide.
[10:37:26] You stop surveying.
[10:37:26] You pack up the dioptra.

 

After that, I can only choose from flat bridges. All arched are not available, despite that 21 bridge tiles should be enough for 301 slope difference:

 

 

I also tried to add another floor (it's 15 floor so cannot add more) so difference were 271 slope. The same effect.

[Wilczan 2,048]

Northern end - 1 story building

Southern end - 14 story building (then tried 15)

 

EDIT:

That's how it would look like in Deed Planner. It doesn't look too steep:

 

Edited January 31, 2018 by Wilczan

[Wilczan 2,048]

Oh got angry as hell..

 

Contacted CM and he got info from developers that arched bridges do not follow max 20 slope/tile rule. Arched follow some magical unknown formula. And according to this formula, for my 21 tile long arched bridge, max height difference is not 420 but only 240 slope!!!!!

 

Come on, so many years after bridges were released, 20 slope per tile were some sort of meta, suddenly we get info about some strange formula wich isn't described anywhere, also 0 info on it on wiki or bridges release official info posts.

 

I already made like half year of heavy terraforming, digging and mining, transmutating tiles etc for my project, even created over 250k dirt pillar for the bridge support, all with 20 slope/tile formula in mind.

 

Sure, there is a possibility to make flat bridges, but my bridges (planned to make 6) are mostly over huge abyss, tallest point over 4000 slopes. So if I use flat bridges there would be few 4k/3k supports for each bridge, where each support takes huge amounts of materials, for example (1 support):

 

 

And it looks out of place, arched bridge over the abyss would look much better then this, those huge supports look very unrealistic:

 

 

Also this is pvp server, so if someone bash/catapult only 1 pillar, it takes huge amount of work to rebuilt it, couse game do not check how many materials were used, you can bash 4k bricks/mortar support as easily as 30 bricks/mortar crown.

 

Please, devs, consider increasing max slope per tile value for arched bridges to the 20 slope/tile...

 

Edited January 31, 2018 by Wilczan

[Tich 1,389]

Not a bug.

[Wilczan 2,048]

19 minutes ago, Tich said:

Not a bug.

Could you present the formula for arched bridges please so people could plan anything instead blind testing?

[Cecci 1,609]

Never mind I made a thought loop.

Edited January 31, 2018 by Cecci