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Difference between revisions of "40d:Floodgate"

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A '''floodgate''' is an object used to regulate the flow of fluids, such as [[water]] and [[magma]]. A [[wood]], [[stone]] or [[metal]] floodgate will suffice for water flow, but only [[magma-safe materials|magma-safe]] materials with a melting point higher than about 1200&deg;C, such as [[bauxite]], [[steel]] or [[raw adamantine]] <small>(don't do that)</small> will hold back magma. Floodgates function much like [[door]]s with the 'Forbidden' option set at all times. Floodgates generally have to be built prior to flooding (obvious for magma, isn't it?) but can still be built at a water level of 1/7.
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A '''floodgate''' is an object used to regulate the flow of fluids, such as [[water]] and [[magma]].
  
Floodgates have to be linked to [[lever]]s or [[pressure plate]]s to allow them to be opened and closed remotely. An open floodgate also can be walked through, whereas a closed one can not.
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== Placement ==
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Floodgates generally have to be built prior to flooding (obvious for magma, isn't it?) but can still be built at a water level of 1/7.
  
For example, a water floodgate connected to a river can be opened to create a shallow pool, then closed, the pool then be drained or allowed to evaporate. The resulting mud can be used for underground [[farm]]s. Standing water can be used for drinking, or sufficiently rushing water used as a defense against invaders.
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If there is no roof above a floodgate, and water comes to it from a source with higher elevation, the water can spill over it.
  
If there is no roof above a floodgate, and water comes to it from a source with higher elevation, the water can spill over it.
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Dwarves often like to stand on the wrong side of the floodgate they are constructing, so that they may conveniently decline any subsequent labor (floodgates are closed by default) until the floodgate is activated. To avoid this situation, you may build a door on the forbidden spot, then forbid the door, then build the floodgate. You will have to deconstruct the door after the floodgate opens, but better a trapped door than a trapped dwarf, as granny says.
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== Activation ==
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Floodgates have to be linked to [[lever]]s or [[pressure plate]]s to allow them to be opened and closed <s>remotely</s> at all. An open floodgate also can be walked through, whereas a closed one can not.
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Once activated, it will take approximately 100 steps for the floodgate to open or close: the same as [[bridge]]s.
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== Floodgates vs Magma ==
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Closed floodgates of any material will resist magma, much like constructed [[wall]]s. However, once a magma floodgate is opened, the magma will flow inside it and destroy
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* the floodgate itself if it was not made of [[magma-safe materials]].
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* the mechanism if it was not made of [[magma-safe materials]] ([[bauxite]]), thus breaking the open/close trigger.
  
If a magma floodgate is opened, the magma will flow over it and melt any non-magma-safe mechanism, thus breaking the open/close trigger. Using magma-safe mechanisms will prevent this from happening.
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== Uses ==
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A water floodgate connected to a river can be opened to create a shallow pool, then closed, the pool then be drained or allowed to evaporate. The resulting mud can be used for underground [[farm]]s. Standing water can be used for drinking, or sufficiently rushing water used as a defense against invaders.
  
The floodgate can also be used to cover fortifications when they are not being used. This will prevent enemies from firing into your fort through the fortifications, and can be useful if your marksdwarfs arrive at the fortification one at a time.  
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A floodgate can also be used to cover fortifications when they are not being used. This will prevent enemies from firing into your fort through the fortifications, and can be useful if your marksdwarfs arrive at the fortification one at a time.  
  
 
Unlike doors, floodgates can be built directly adjacent to each other; that is, floodgates do not require an adjacent wall. This allows channels wider than two squares to be regulated. This characteristic also permits for the construction of "siege doors", allowing areas wider than two tiles to be sealed off from the enemy. For instance, the three tile wide access point for a Trade Depot within the fortress can be closed down into a chokepoint with floodgates and a lever, giving your marksdwarves more of a chance to shoot invaders.
 
Unlike doors, floodgates can be built directly adjacent to each other; that is, floodgates do not require an adjacent wall. This allows channels wider than two squares to be regulated. This characteristic also permits for the construction of "siege doors", allowing areas wider than two tiles to be sealed off from the enemy. For instance, the three tile wide access point for a Trade Depot within the fortress can be closed down into a chokepoint with floodgates and a lever, giving your marksdwarves more of a chance to shoot invaders.
 
Once activated, it will take approximately 100 steps for the floodgate to open or close: the same as bridges.
 
  
 
{{Buildings}}
 
{{Buildings}}
 
[[Category:Constructions]]
 
[[Category:Constructions]]

Revision as of 15:11, 4 July 2008

A floodgate is an object used to regulate the flow of fluids, such as water and magma.

Placement

Floodgates generally have to be built prior to flooding (obvious for magma, isn't it?) but can still be built at a water level of 1/7.

If there is no roof above a floodgate, and water comes to it from a source with higher elevation, the water can spill over it.

Dwarves often like to stand on the wrong side of the floodgate they are constructing, so that they may conveniently decline any subsequent labor (floodgates are closed by default) until the floodgate is activated. To avoid this situation, you may build a door on the forbidden spot, then forbid the door, then build the floodgate. You will have to deconstruct the door after the floodgate opens, but better a trapped door than a trapped dwarf, as granny says.

Activation

Floodgates have to be linked to levers or pressure plates to allow them to be opened and closed remotely at all. An open floodgate also can be walked through, whereas a closed one can not. Once activated, it will take approximately 100 steps for the floodgate to open or close: the same as bridges.

Floodgates vs Magma

Closed floodgates of any material will resist magma, much like constructed walls. However, once a magma floodgate is opened, the magma will flow inside it and destroy

Uses

A water floodgate connected to a river can be opened to create a shallow pool, then closed, the pool then be drained or allowed to evaporate. The resulting mud can be used for underground farms. Standing water can be used for drinking, or sufficiently rushing water used as a defense against invaders.

A floodgate can also be used to cover fortifications when they are not being used. This will prevent enemies from firing into your fort through the fortifications, and can be useful if your marksdwarfs arrive at the fortification one at a time.

Unlike doors, floodgates can be built directly adjacent to each other; that is, floodgates do not require an adjacent wall. This allows channels wider than two squares to be regulated. This characteristic also permits for the construction of "siege doors", allowing areas wider than two tiles to be sealed off from the enemy. For instance, the three tile wide access point for a Trade Depot within the fortress can be closed down into a chokepoint with floodgates and a lever, giving your marksdwarves more of a chance to shoot invaders.


Rooms
Furniture
Animal trapAnvilArmor standBedBinBucketCabinetCageCoffinContainerRestraintSeatStatueTableWeapon rack

Access
DoorFloodgateBarsGrateFloor hatchBridgeRoadWindow
Constructions
Machine & Trap parts
Other Buildings
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