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Editing Lever
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− | {{ | + | {{Quality|Unrated}} |
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+ | A '''lever''' is a building constructed from one [[mechanism]] on an empty tile. It can be built with {{k|b}},{{k|T}},{{k|l}}. Once in place, it can be linked to one or more devices such as [[door]]s, [[bridge]]s or [[support]]s, permitting you to control these other devices remotely. Order the lever to be pulled through its {{k|q}} menu. A dwarf with the [[lever operation]] labor will get assigned the job of pulling the lever. This dwarf might be a long way away, and the delay in pulling the lever can result in [[Fun]]. Levers also make good furniture choices when constructed with high-quality mechanisms. | ||
[[Pressure plate]]s are like levers, but are triggered by creatures or fluids directly rather than by giving an order to a dwarf. If levers are too much [[fun]], a pressure plate may be a better choice. There is more information on trap design [[trap design|here]]. | [[Pressure plate]]s are like levers, but are triggered by creatures or fluids directly rather than by giving an order to a dwarf. If levers are too much [[fun]], a pressure plate may be a better choice. There is more information on trap design [[trap design|here]]. | ||
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When a lever is pulled, the connected device(s) activate. What happens during activation depends on the linked device: | When a lever is pulled, the connected device(s) activate. What happens during activation depends on the linked device: | ||
− | * [[Door]]s | + | * [[Door]]s and [[hatch]]es open and close. |
* [[Support]]s collapse, potentially causing a cave-in (pulling the lever again won't re-assemble the support, cave-in or not). | * [[Support]]s collapse, potentially causing a cave-in (pulling the lever again won't re-assemble the support, cave-in or not). | ||
* [[Bridge]]s raise and lower, or retract and extend, depending on the type of bridge. | * [[Bridge]]s raise and lower, or retract and extend, depending on the type of bridge. | ||
+ | * [[Floodgate]]s open and close. | ||
* [[Gear assembly|Gear assemblies]] toggle between engaged and disengaged (disengaged assemblies can't support other machinery). | * [[Gear assembly|Gear assemblies]] toggle between engaged and disengaged (disengaged assemblies can't support other machinery). | ||
* [[Restraint]]s release the creature assigned to them (leaving the restraint attached to the creature and, at present, unrecoverable). | * [[Restraint]]s release the creature assigned to them (leaving the restraint attached to the creature and, at present, unrecoverable). | ||
* [[Cage]]s are deconstructed, releasing their occupants (needless to say, this is irreversible!) | * [[Cage]]s are deconstructed, releasing their occupants (needless to say, this is irreversible!) | ||
* [[Spike]]s raise and lower. | * [[Spike]]s raise and lower. | ||
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Different objects take different amounts of time to respond to activation; generally this is only a brief pause, but it can be enough for a charging [[goblin]] to cover more than a few tiles. | Different objects take different amounts of time to respond to activation; generally this is only a brief pause, but it can be enough for a charging [[goblin]] to cover more than a few tiles. | ||
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The linkage interface will give you the warning '''Cannot link to <object name>''' if the object is already linked, or tasked to be linked, to the lever in question. Buildings that are currently forbidden will also show the same warning message. A lever cannot be successfully linked to a locked door, as the dwarves must stand on the door to complete the link. The task will be suspended with a message that they cannot find a path. | The linkage interface will give you the warning '''Cannot link to <object name>''' if the object is already linked, or tasked to be linked, to the lever in question. Buildings that are currently forbidden will also show the same warning message. A lever cannot be successfully linked to a locked door, as the dwarves must stand on the door to complete the link. The task will be suspended with a message that they cannot find a path. | ||
− | Currently (as of 50.04) you cannot choose which specific mechanisms you want to use to connect the device to the lever; they will be automatically chosen in order of the oldest available mechanisms. The quality of a mechanism affects the accuracy of traps, but not the speed of activation. The first mechanism listed is for the device end, the second for the lever end. This is important when working with [[magma]] | + | Currently (as of 50.04) you cannot choose which specific mechanisms you want to use to connect the device to the lever; they will be automatically chosen in order of the oldest available mechanisms. The quality of a mechanism affects the accuracy of traps, but not the speed of activation. The first mechanism listed is for the device end, the second for the lever end. This is important when working with [[magma]]. |
A single lever can be linked to any number of valid objects, and each object can have any number of levers controlling it. | A single lever can be linked to any number of valid objects, and each object can have any number of levers controlling it. | ||
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:Example: 2 levers (both in "off" position) are connected to a drawbridge. After pulling the first lever, the bridge will lift. Pulling the second lever tells the bridge to "open", which it already has done - no visible effect. When it is pulled a second time it will let the bridge down. This in turn requires the ''first'' lever (still in "open/lift" position) to be pulled twice to trigger a change (lift again), and so on. | :Example: 2 levers (both in "off" position) are connected to a drawbridge. After pulling the first lever, the bridge will lift. Pulling the second lever tells the bridge to "open", which it already has done - no visible effect. When it is pulled a second time it will let the bridge down. This in turn requires the ''first'' lever (still in "open/lift" position) to be pulled twice to trigger a change (lift again), and so on. | ||
− | "On" and "off" state is fixed and dependent on the lever, not the object that lever is linked to | + | "On" and "off" state is fixed and dependent on the lever, not the object that lever is linked to: |
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* "dash to the right" ( '''ó''' ) is '''on''' | * "dash to the right" ( '''ó''' ) is '''on''' | ||
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* [[Support]] – Deconstructs the support, ideally without a dwarf next to it. Most commonly used to cause controlled [[cave-in]]s. The support's building material and its attached mechanism can both be recovered (unless they happen to get destroyed in said cave-in). | * [[Support]] – Deconstructs the support, ideally without a dwarf next to it. Most commonly used to cause controlled [[cave-in]]s. The support's building material and its attached mechanism can both be recovered (unless they happen to get destroyed in said cave-in). | ||
− | == | + | ==Labeling== |
− | + | There is no built-in indication of what a lever does, and pulling them to see what will happen can be immensely [[fun]]. Naming the levers using {{k|Ctrl}}-{{k|n}} is the most foolproof way of labeling levers; color-coding of levers can give some indication too. If you really don't want to name your levers, using the [[note]] function can fulfill the same purpose. | |
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+ | However, it is possible to ascertain whether or not a building has been linked to a lever by finding the building under {{k|R}} "View Rooms/Buildings" and then selecting {{k|t}} "Zoom to building items". A device that is actuated by a lever not only lists the components of the building but will also include a mechanism item. Viewing the lever itself this way will display one mechanism for each building the lever is linked to (plus one mechanism from the construction of the lever itself). | ||
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+ | There is way to ascertain which lever is linked to what, but it becomes very hard when you have many linkable items. Find the lever, use "q" and then select "add new task". Try for every linkable thing in your fortress, to link the lever to it. If an object isn't available for linking, that's because it is already linked. Though this method isn't very usable to find the single linked item in all of them, it is useful when you forgot whether the left or the right lever was linked to the support. | ||
− | + | Finally, the utility [[Utility:DFHack|DFHack]] provides a new GUI command "gui/mechanisms" (bound to {{k|ctrl}}-{{k|m}} by default) which allows you to list and navigate mechanical connections from inside the game itself. This is by far the easiest and least tedious method to review your levers. | |
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==Toggling Passages== | ==Toggling Passages== |