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Difference between revisions of "v0.31:Fire-safe"
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| − | Fire-safe materials are those that are not damaged by fire. These materials include glass, metal, and most | + | '''Fire-safe materials''' are those that are not damaged by [[fire]]. These materials include [[glass]], most [[metal]] (everything ''but'' [[bismuth]], [[lead]], [[tin]], [[zinc]], and all three pewters) and most [[stone]]. [[Nether-cap]] is the only [[wood]] that can withstand fire (and even [[magma]]) thanks to its fixed temperature, but the game does not recognize it as a fire-safe building material. More esoteric fire-safe materials include [[ash]], [[potash]], [[pearlash]], and [[dragon]] tallow [[soap]] "bars". Counterintuitively, [[Bituminous coal]], [[lignite]], [[charcoal]], and [[coke]] '''are''' considered fire-safe, since they only catch fire when they're hot enough (see below). |
| − | + | For the purpose of job item requirements (e.g. in [[custom reaction]]s or when constructing certain buildings), only [[bar]]s, [[block]]s, [[stone]], [[log]]s, and [[anvil]]s can be classified as "fire-safe materials" - all other item types are rejected outright. Fire-safe materials are only required when the object is going to come into contact with extreme heat, such as all conventional [[furnace]]s and the [[metalsmith's forge|forge]]. For the magma-powered versions of these buildings, as well as anything that will be in direct contact with magma (such as [[floodgate]]s), fire-safe is not enough: it has to be [[magma-safe]]. | |
| − | As far as the game is concerned, | + | As far as the game is concerned, only materials which are stable at the [[temperature]] {{ct|11000}} (i.e. MELTING_POINT/BOILING_POINT/IGNITE_POINT/HEATDAM_POINT greater than 11000 and COLDDAM_POINT less than 11000) are supposed to be considered fire-safe. Despite this temperature being considered fire-safe, actual [[fire]] can generate temperatures significantly higher - in particular, all burning items generate temperatures up to 200 degrees ''above'' their material's ignite point, so once a "fire-safe" item manages to get ignited (e.g. by exposure to [[magma]]), it can easily spread further. For practical purposes, anything which has an IGNITE_POINT should be treated as not fire-safe. |
| − | + | ==Bugs== | |
| + | All fire-safety checks are broken in this version, repeatedly checking the IGNITE_POINT 5 times instead of checking each individual temperature ({{bug|4573}}). | ||
{{Category|Materials}} | {{Category|Materials}} | ||
{{Category|Physics}} | {{Category|Physics}} | ||
Revision as of 11:52, 22 June 2024
| This article is about an older version of DF. |
Fire-safe materials are those that are not damaged by fire. These materials include glass, most metal (everything but bismuth, lead, tin, zinc, and all three pewters) and most stone. Nether-cap is the only wood that can withstand fire (and even magma) thanks to its fixed temperature, but the game does not recognize it as a fire-safe building material. More esoteric fire-safe materials include ash, potash, pearlash, and dragon tallow soap "bars". Counterintuitively, Bituminous coal, lignite, charcoal, and coke are considered fire-safe, since they only catch fire when they're hot enough (see below).
For the purpose of job item requirements (e.g. in custom reactions or when constructing certain buildings), only bars, blocks, stone, logs, and anvils can be classified as "fire-safe materials" - all other item types are rejected outright. Fire-safe materials are only required when the object is going to come into contact with extreme heat, such as all conventional furnaces and the forge. For the magma-powered versions of these buildings, as well as anything that will be in direct contact with magma (such as floodgates), fire-safe is not enough: it has to be magma-safe.
As far as the game is concerned, only materials which are stable at the temperature 11000 °U (i.e. MELTING_POINT/BOILING_POINT/IGNITE_POINT/HEATDAM_POINT greater than 11000 and COLDDAM_POINT less than 11000) are supposed to be considered fire-safe. Despite this temperature being considered fire-safe, actual fire can generate temperatures significantly higher - in particular, all burning items generate temperatures up to 200 degrees above their material's ignite point, so once a "fire-safe" item manages to get ignited (e.g. by exposure to magma), it can easily spread further. For practical purposes, anything which has an IGNITE_POINT should be treated as not fire-safe.
Bugs
All fire-safety checks are broken in this version, repeatedly checking the IGNITE_POINT 5 times instead of checking each individual temperature (Bug:4573).