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Difference between revisions of "v0.31:Contaminant"
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| − | Contaminants are a new feature introduced with 0.31.01. There are | + | Contaminants are a new feature introduced with 0.31.01. There are numerous types of contaminants in Dwarf Fortress, such as '''mud''', '''blood''', '''(stone) dust''', '''vomit''', '''snow''', and '''pus'''. |
| − | =Creating Mud= | + | ==Creating Mud== |
| − | Any time a tile is covered in | + | Any time a tile is covered in [[water]], [[mud]] will be created on that tile. Mud is usually necessary for doing underground [[Agriculture|farming]]. |
| − | =Tracking= | + | ==Tracking== |
| − | + | [[dwarf|Dwarves]] and other [[creature|creatures]] that walk over contaminants can track them onto other tiles that they pass through. Dustings and spatterings which represent small amounts of a contaminant do not appear to be tracked around. Larger amounts of contaminants will be picked up by a dwarves left foot and can then be transferred to other tiles. | |
| − | The tracking of contaminants is | + | The tracking of contaminants is a configurable option, which defaults to '''NO''' (in Dwarf Fortress mode). The actual options are <tt>WALKING_SPREADS_SPATTER_DWF</tt> and <tt>WALKING_SPREADS_SPATTER_ADV</tt> in <tt>data/init/d_init.txt</tt>. |
| − | =Flowing= | + | ==Flowing== |
| − | Water that | + | Water that [[flow|flows]] over contaminants can pick them up and redistribute them as the water moves. Water does not appear to move mud, although mud will be created any time water covers a tile. The mechanics of redistributing contaminants using water is not well understood although there have been some observations of strange behavior when mixing blood and water. |
:* adding 7/7 water on top of a pool of blood creates more pools of blood at the edge of the water as it moves and evaporates. | :* adding 7/7 water on top of a pool of blood creates more pools of blood at the edge of the water as it moves and evaporates. | ||
:* an overflowing reservoir that contains some blood creates blood everywhere the water flows. | :* an overflowing reservoir that contains some blood creates blood everywhere the water flows. | ||
:* water will create mud on any non-muddy tile, and moving water will frequently redistribute the mud. | :* water will create mud on any non-muddy tile, and moving water will frequently redistribute the mud. | ||
| + | |||
| + | ==Removing== | ||
| + | Removing contaminants can only be accomplished by dwarves performing a [[cleaning]]. This requires a contaminant to be on a floor tile, and will (as a side effect) also remove contaminants from adjacent walls. A contaminant that is on a wall, with no adjacent contaminated floor, will never be cleaned. | ||
| + | |||
| + | Contaminants can be moved from creatures to floor tiles with [[water]]. The simplest and most effective way is to have the creature walk through a 2/7 or 3/7 water tile. All contaminants will be transferred from the creature to the floor, and it will walk away wet (water coverings in inventory) but otherwise uncontaminated. Another way is to drop water on a creature as it's walking over a floor grate (e.g. a [[waterfall]]). This is much more complex to set up, and has an additional drawback: a dwarf who attempts to clean the contaminated floor grate tile will be interrupted by the sudden influx of water, resulting in job cancellation spam, and an uncleaned grate (unless you temporarily turn off the waterfall). | ||
| + | |||
| + | {{Category|Physics}} | ||
Latest revision as of 15:56, 16 September 2012
| This article is about an older version of DF. |
Contaminants are a new feature introduced with 0.31.01. There are numerous types of contaminants in Dwarf Fortress, such as mud, blood, (stone) dust, vomit, snow, and pus.
Creating Mud[edit]
Any time a tile is covered in water, mud will be created on that tile. Mud is usually necessary for doing underground farming.
Tracking[edit]
Dwarves and other creatures that walk over contaminants can track them onto other tiles that they pass through. Dustings and spatterings which represent small amounts of a contaminant do not appear to be tracked around. Larger amounts of contaminants will be picked up by a dwarves left foot and can then be transferred to other tiles.
The tracking of contaminants is a configurable option, which defaults to NO (in Dwarf Fortress mode). The actual options are WALKING_SPREADS_SPATTER_DWF and WALKING_SPREADS_SPATTER_ADV in data/init/d_init.txt.
Flowing[edit]
Water that flows over contaminants can pick them up and redistribute them as the water moves. Water does not appear to move mud, although mud will be created any time water covers a tile. The mechanics of redistributing contaminants using water is not well understood although there have been some observations of strange behavior when mixing blood and water.
- adding 7/7 water on top of a pool of blood creates more pools of blood at the edge of the water as it moves and evaporates.
- an overflowing reservoir that contains some blood creates blood everywhere the water flows.
- water will create mud on any non-muddy tile, and moving water will frequently redistribute the mud.
Removing[edit]
Removing contaminants can only be accomplished by dwarves performing a cleaning. This requires a contaminant to be on a floor tile, and will (as a side effect) also remove contaminants from adjacent walls. A contaminant that is on a wall, with no adjacent contaminated floor, will never be cleaned.
Contaminants can be moved from creatures to floor tiles with water. The simplest and most effective way is to have the creature walk through a 2/7 or 3/7 water tile. All contaminants will be transferred from the creature to the floor, and it will walk away wet (water coverings in inventory) but otherwise uncontaminated. Another way is to drop water on a creature as it's walking over a floor grate (e.g. a waterfall). This is much more complex to set up, and has an additional drawback: a dwarf who attempts to clean the contaminated floor grate tile will be interrupted by the sudden influx of water, resulting in job cancellation spam, and an uncleaned grate (unless you temporarily turn off the waterfall).