Difference between revisions of "Line of sight"
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| − | + | [[Line of sight]] (often abbreviated to '''LOS''') refers to the portion of the Dungeon that you can see. The default LOS used by most species is out to 7 spaces, or a 15x15 square. | |
There are some ways to change your line of sight: | There are some ways to change your line of sight: | ||
| − | |||
* The spell [[Darkness]] reduces LOS by 25%. The same effect is also provided by the [[Robe of Night]]. | * The spell [[Darkness]] reduces LOS by 25%. The same effect is also provided by the [[Robe of Night]]. | ||
* The [[demonspawn]]-exclusive [[nightstalker]] mutation reduces LOS by 1, 2, or 3 tiles depending on its rank. | * The [[demonspawn]]-exclusive [[nightstalker]] mutation reduces LOS by 1, 2, or 3 tiles depending on its rank. | ||
| + | * [[Barachim]] have an innate mutation that increases their default LOS by 1, to a total of 8 spaces (17x17 square). | ||
| + | |||
| + | Line of sight is similar to, but distinct from, "line of effect" (i.e. the area of the Dungeon you may interact with). Most of the time, they are interchangeable, but some situations may result in places you can see but not affect (such as tiles behind transparent [[wall]]s) or can affect but cannot see (such as firing a bow into a [[cloud]] of smoke). | ||
The following picture shows tiles within the default field of view with their grid distance. | The following picture shows tiles within the default field of view with their grid distance. | ||
<pre> | <pre> | ||
| − | + | 88888888888888888 | |
| − | + | 87777777777777778 | |
| − | + | 87666666666666678 | |
| − | + | 87655555555555678 | |
| − | + | 87654444444445678 | |
| − | + | 87654333333345678 | |
| − | + | 87654322222345678 | |
| − | + | 87654321112345678 | |
| − | + | 87654321@12345678 | |
| − | + | 87654321112345678 | |
| − | + | 87654322222345678 | |
| − | + | 87654333333345678 | |
| − | + | 87654444444445678 | |
| − | + | 87655555555555678 | |
| − | + | 87666666666666678 | |
| + | 87777777777777778 | ||
| + | 88888888888888888 | ||
</pre> | </pre> | ||
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*Teleporting/blinking out of range | *Teleporting/blinking out of range | ||
| − | *Closing | + | *Closing [[door]]s |
*Turning a corner | *Turning a corner | ||
*Reading a [[scroll of fog]] | *Reading a [[scroll of fog]] | ||
| − | *Going up/down stairs or | + | *Going up/down [[stairs]] or [[shaft]]s |
| − | *[[Zin|Imprison]]ing them, or [[ | + | *[[Zin|Imprison]]ing them, or [[Tomb card|yourself]] |
| − | * | + | *Running away faster than they can chase you. |
==History== | ==History== | ||
| − | *In [[0.26]], [[Kobold]]s will start with [[Nightstalker]] 3; [[Demonspawn]] will no longer have Nightstalker among their possible mutations. Also, [[scarves]] of shadows will be added. | + | *In [[0.26]], [[Kobold]]s will start with [[Nightstalker]] 3; [[Demonspawn]] will no longer have Nightstalker among their possible mutations. Also, [[scarves]] of shadows will be added, and the [[Darkness]] spell will be removed. |
| − | *In [[0.20]], [[ | + | *In [[0.20]], [[Barachim]] and their unique +LOS mutation were added. |
*Prior to [[0.19]], the [[Shadow card]] existed and could be used to further reduce the player's LOS. | *Prior to [[0.19]], the [[Shadow card]] existed and could be used to further reduce the player's LOS. | ||
| − | *Prior to [[0.18]], the [[ | + | *Prior to [[0.18]], the [[lantern of shadows]] existed and could be used to further reduce the player's LOS. |
*Prior to [[0.17]], line of sight was circular with a radius of about 8. | *Prior to [[0.17]], line of sight was circular with a radius of about 8. | ||
| − | *In [[0.7]], the [[developers]] made an undocumented change to the LOS. Ranges | + | *In [[0.7]], the [[developers]] made an undocumented change to the LOS. Ranges became circular, so every spell and ability with a set range got about two squares lopped off the diagonals. Stealthy characters could reach their target in 5 squares (instead of 8) at certain angles. |
[[Category:Game mechanics]] | [[Category:Game mechanics]] | ||
[[Category:Crystal Ball Articles]] | [[Category:Crystal Ball Articles]] | ||
Revision as of 06:12, 29 December 2020
Version 0.25: This article may not be up to date for the latest stable release of Crawl.
Line of sight (often abbreviated to LOS) refers to the portion of the Dungeon that you can see. The default LOS used by most species is out to 7 spaces, or a 15x15 square.
There are some ways to change your line of sight:
- The spell Darkness reduces LOS by 25%. The same effect is also provided by the Robe of Night.
- The demonspawn-exclusive nightstalker mutation reduces LOS by 1, 2, or 3 tiles depending on its rank.
- Barachim have an innate mutation that increases their default LOS by 1, to a total of 8 spaces (17x17 square).
Line of sight is similar to, but distinct from, "line of effect" (i.e. the area of the Dungeon you may interact with). Most of the time, they are interchangeable, but some situations may result in places you can see but not affect (such as tiles behind transparent walls) or can affect but cannot see (such as firing a bow into a cloud of smoke).
The following picture shows tiles within the default field of view with their grid distance.
88888888888888888 87777777777777778 87666666666666678 87655555555555678 87654444444445678 87654333333345678 87654322222345678 87654321112345678 87654321@12345678 87654321112345678 87654322222345678 87654333333345678 87654444444445678 87655555555555678 87666666666666678 87777777777777778 88888888888888888
Strategy
If you can't see them, they can't see you. With very few exceptions, enemies that can't see you can't attack you.
There are several ways to break your line of sight with an enemy:
- Teleporting/blinking out of range
- Closing doors
- Turning a corner
- Reading a scroll of fog
- Going up/down stairs or shafts
- Imprisoning them, or yourself
- Running away faster than they can chase you.
History
- In 0.26, Kobolds will start with Nightstalker 3; Demonspawn will no longer have Nightstalker among their possible mutations. Also, scarves of shadows will be added, and the Darkness spell will be removed.
- In 0.20, Barachim and their unique +LOS mutation were added.
- Prior to 0.19, the Shadow card existed and could be used to further reduce the player's LOS.
- Prior to 0.18, the lantern of shadows existed and could be used to further reduce the player's LOS.
- Prior to 0.17, line of sight was circular with a radius of about 8.
- In 0.7, the developers made an undocumented change to the LOS. Ranges became circular, so every spell and ability with a set range got about two squares lopped off the diagonals. Stealthy characters could reach their target in 5 squares (instead of 8) at certain angles.
