Difference between revisions of "Line of sight"
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| − | The default [[line of sight]] radius in Crawl is about 8 | + | {{version016}} |
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| + | The default [[line of sight]] (LOS) radius in Crawl is about 8. (Actually, it is sqrt(65), so the field at (8,1) is in sight.) | ||
| + | |||
| + | There are some ways to modify your line of sight: | ||
| + | |||
| + | * A [[lantern of shadows]] reduces LOS by 2 tiles | ||
| + | * The spell [[Darkness]] reduces LOS by 25%. The same effect is also provided by the [[shadow card]] and the [[Robe of Night]]. | ||
The following drawing shows fields within the default field of view with their grid distance. | The following drawing shows fields within the default field of view with their grid distance. | ||
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</pre> | </pre> | ||
| + | ==History== | ||
In [[0.7]], the [[developers]] made an undocumented change to the LOS. Ranges are circular now, so every spell and ability that reaches a set distance got about two squares lopped off the diagonals. Stealthy characters can now reach their target in 5 squares (instead of 8) at certain angles. | In [[0.7]], the [[developers]] made an undocumented change to the LOS. Ranges are circular now, so every spell and ability that reaches a set distance got about two squares lopped off the diagonals. Stealthy characters can now reach their target in 5 squares (instead of 8) at certain angles. | ||
[[Category:Game mechanics]] | [[Category:Game mechanics]] | ||
Revision as of 00:32, 30 March 2015
Version 0.16: This article may not be up to date for the latest stable release of Crawl.
The default line of sight (LOS) radius in Crawl is about 8. (Actually, it is sqrt(65), so the field at (8,1) is in sight.)
There are some ways to modify your line of sight:
- A lantern of shadows reduces LOS by 2 tiles
- The spell Darkness reduces LOS by 25%. The same effect is also provided by the shadow card and the Robe of Night.
The following drawing shows fields within the default field of view with their grid distance.
888
777777777
66666666666
6555555555556
765444444444567
765433333334567
765432222234567
87654321112345678
87654321@12345678
87654321112345678
765432222234567
765433333334567
765444444444567
6555555555556
66666666666
777777777
888
Cartesian distance, rounded up (one quadrant).
@12345678 123456789 23345678 34455678 45556789 5666788 677788 78889 89
Modified cartesian distance (field with value 'k' is within distance sqrt(k*k+1)).
@02345678 012345678 22345678 33455678 44556788 5566778 667788 77888 88
History
In 0.7, the developers made an undocumented change to the LOS. Ranges are circular now, so every spell and ability that reaches a set distance got about two squares lopped off the diagonals. Stealthy characters can now reach their target in 5 squares (instead of 8) at certain angles.
