0006390: Trans-cavern passages sometimes have an incomplete ramp (blocked by a floor tile), making travel through it impossible.

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0006390

Dwarf Fortress

World Generation -- General

public

2013-11-18 11:26

2017-04-02 15:21

Reporter

smjjames

Assigned To

Loci

Priority

normal

Severity

minor

Reproducibility

always

Status

acknowledged

Resolution

open

Platform

Laptop PC

Windows 7 32x

OS Version

Product Version

0.34.11

Target Version

Fixed in Version

Summary

0006390: Trans-cavern passages sometimes have an incomplete ramp (blocked by a floor tile), making travel through it impossible.

Description

While spelunking using a modded creature and sometimes using DFhacks reveal to assist in finding the passages, I've noticed that while the passages themselves are complete, they often have a spot where there is an up ramp, but there is no corresponding downramp above it, just a floor blocking the way up, or down depending on direction of travel.

It seems to happen more often at the floor of the upper cavern level but I've had ones that are blocked off at other points. The announcement triggers as normal.

The passages are common enough that you'll eventually find one that you can go through.

I've also had these a few times on an embark site.

Steps To Reproduce

Take an adventurer into the caverns and explore around, investigate every downward passage until you find one that you can't go all the way through or get an announcement of a downward passageway with no actual access.

Although if you use DFhacks reveal (or the dev tool equivalent that Toady has, if any), you can just walk around on the surface and look using that.

These are the cavern worldgen params I use, but the parameters shouldn't matter.
    [CAVERN_LAYER_COUNT:3]
    [CAVERN_LAYER_OPENNESS_MIN:50]
    [CAVERN_LAYER_OPENNESS_MAX:100]
    [CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
    [CAVERN_LAYER_PASSAGE_DENSITY_MAX:0]
    [CAVERN_LAYER_WATER_MIN:30]
    [CAVERN_LAYER_WATER_MAX:100]
    [HAVE_BOTTOM_LAYER_1:1]
    [HAVE_BOTTOM_LAYER_2:1]
    [LEVELS_ABOVE_GROUND:50]
    [LEVELS_ABOVE_LAYER_1:20]
    [LEVELS_ABOVE_LAYER_2:1]
    [LEVELS_ABOVE_LAYER_3:1]
    [LEVELS_ABOVE_LAYER_4:1]
    [LEVELS_ABOVE_LAYER_5:2]
    [LEVELS_AT_BOTTOM:1]

Additional Information

This http://www.bay12games.com/dwarves/mantisbt/view.php?id=4520 [^] might be related in some way in that it's also a problem with ramps and worldgen.