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[Qmarx]

So, apparently it's entirely possible to build a floor in a place where it can't be supported (next to a grate, for example).  As soon as the floor gets built it immediately falls down, causing a cave in.

The situation it came up in was like so:

code:

.+#+#+.
.#+#I#.
.#++ #.
.#+++#.
.+++++.

Where "I" is the space the floor is being added, "#" are grates, "+" are constructed floors, " " is empty space, and "." are normal ground

There probably needs to be a check in place, but the mental image of a dwarf walking up to a cliff, pulling out a stone block and just dropping it off the edge is pretty funny.

Oh, yeah.  Done with version 38c.

[ May 03, 2008: Message edited by: Qmarx ]

[ May 04, 2008: Message edited by: Qmarx ]

[Ubersoldat]

Urist McMason has the aspect of one scientist!

A section of the cavern has collapsed!

Urist McMason has created the Theory of Gravity, an artifact scientific theory!

[Jay]

Placing is completely judged by accessibility, not support.

[Cavalcadeofcats]

Still a bug, or at least a req, but known.

You can get similar results with bridges, which seem to actively remove support. (If you build a wall adjacent to a bridge and a supported wall - instant cave-in!)

[Qmarx]

quote:Originally posted by jaybud4:
<STRONG>Placing is completely judged by accessibility, not support.</STRONG>

I just found it kind of odd, since grates are judged by support.

Still, I could see this being used as a ridiculously impractical fortress defense system.  Stairs up to the highest level of the map, extend a large section of floor/grates then squash goblins with death from above.

And then, when Toady finally implements realistic cave-ins, you can destroy everything you've built.

[ May 04, 2008: Message edited by: Qmarx ]

[Veroule]

I think the actual bug here is that grates do not provide support.  In your dwaring the solid floors are diagonal to the new construction, and I am fine with a diagonal not providing support.  You then have grates to the n, e, and w of your constuction, and these are what should actually support it.

Currently grates don't provide support, and that is wrong, I can point out a few steel grate deck bridges in the area in which I live that prove that a grate is a viable support object.

[Draco18s]

At the very least they should support MORE grates.

[Pickerel]

It would be... grate... if they did.

Bridges do the same thing: I used a locked door and a constant stream of foorbuilding at the end of a bridge to kill every merchant in one particular fort.  They never blamed me, and kept sending merchants, despite that I ran the fort of no returns (and because I took their money, no returns.)