Difference between revisions of "Phasing"

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'''Phasing''' is the ability to walk through [[wall]]s. The property is possessed by [[xorn]]s, [[earth elemental]]s, [[ghost]]s and [[shade]]s.<ref>It is indicated by <code>M1_WALLWALK</code> in [[monst.c]]</ref> This does not allow one to cross [[pool]]s of water, or walk through those rare areas that are designated as non-phasing: all of [[Sokoban]], a dividing wall in [[Moloch's Sanctum]],<ref>In [[NetHack 3.4.3]], it had a gap at the upper edge of the map.</ref> the inner wall around the [[Wizard's Tower]], and the entire [[Astral Plane]]. [[SLASH'EM]] introduces the [[spellbook of passwall|spell of passwall]] which grants phasing temporarily. [[UnNethack]] introduces [[the Iron Ball of Liberation]] (the [[Convict]] [[quest artifact]]), which grants temporary phasing upon [[invoke|invocation]].
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'''Phasing''' is the ability to walk through [[wall]]s. The property is possessed by [[xorn]]s, [[earth elemental]]s, [[ghost]]s and [[shade]]s.<ref>It is indicated by <code>M1_WALLWALK</code> in [[monst.c]]</ref> This does not allow one to cross [[pool]]s of water, or walk through those rare areas that are designated as non-phasing: all of [[Sokoban]], a dividing wall in [[Moloch's Sanctum]],<ref>In [[NetHack 3.4.3]], it had a gap at the upper edge of the map.</ref> the inner wall around the [[Wizard's Tower]], and the entire [[Astral Plane]].  
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[[SLASH'EM]] introduces the [[spell of passwall]], which grants phasing temporarily. [[UnNethack]] introduces [[the Iron Ball of Liberation]], the [[Convict]] [[quest artifact]] which grants temporary phasing upon [[invoke|invocation]].
  
 
==Strategy==
 
==Strategy==
The use of [[polymorph]]ing into a phasing monster to gain a combat advantage is dubious, as neither the xorn nor the earth elemental is particularly tough. Xorns cannot wear [[body armor]] or [[cloak]]s (these will be destroyed upon transforming), and earth elementals cannot wear anything.
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The use of [[polymorph]]ing into a phasing monster to gain a combat advantage is dubious, as neither the xorn nor the earth elemental is particularly tough. Xorns cannot wear [[body armor]] or [[cloak]]s (these will be destroyed upon transforming), and earth elementals cannot wear anything.  
  
Phasing may be used as an alternative to [[digging]], or to access items embedded in [[wall]]s or to retreat if you're getting surrounded.
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Phasing may be used as an alternative to [[digging]], especially for accessing items embedded in [[wall]]s, or retreating if you're getting surrounded. It can also be used situationally to approach a [[shop]] from across an unmapped level and steal from it.
  
Strategically, phasing can be used to quickly bypass some areas of some maps. It is one way a [[rogue]] character can solve their final [[quest]] [[Rogue quest#Stronghold of the Master Assassin|puzzle]]. Some players will polymorph into a phasing creature for [[Gehennom mapping]] to make the search pattern simpler. Walking on the walls helps avoid traps.
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Strategically, phasing can be used to quickly bypass some areas of some maps. It is one way a [[Rogue]] can solve their final [[quest]] [[Rogue quest#Stronghold of the Master Assassin|puzzle]]. Some players will polymorph into a phasing creature for [[Gehennom mapping]] to make the search pattern simpler. Walking on the walls helps avoid traps.
  
 
[[Speed run]]ners strive to phase into the correct turret of the [[Castle]], and from there to the gem chamber (for Luck) and the trapdoor to the [[Valley of the Dead]]. The Valley, [[Asmodeus' Lair]], and [[Vlad's Tower]] can be noticeably abbreviated with phasing. However, phasing is not a universal solution to non-teleport mazes, because xorns are slow and the lack of a cloak makes it dangerous to fight [[level drain]]ing monsters, [[shade]]s, or [[Yeenoghu]].
 
[[Speed run]]ners strive to phase into the correct turret of the [[Castle]], and from there to the gem chamber (for Luck) and the trapdoor to the [[Valley of the Dead]]. The Valley, [[Asmodeus' Lair]], and [[Vlad's Tower]] can be noticeably abbreviated with phasing. However, phasing is not a universal solution to non-teleport mazes, because xorns are slow and the lack of a cloak makes it dangerous to fight [[level drain]]ing monsters, [[shade]]s, or [[Yeenoghu]].
 
Approaching a shopkeeper across an unmapped level and stealing from the shop can be other situational uses of phasing. However, other polyforms are faster and better fighters.
 
  
 
==Messages==
 
==Messages==

Revision as of 00:38, 16 January 2020

Phasing is the ability to walk through walls. The property is possessed by xorns, earth elementals, ghosts and shades.[1] This does not allow one to cross pools of water, or walk through those rare areas that are designated as non-phasing: all of Sokoban, a dividing wall in Moloch's Sanctum,[2] the inner wall around the Wizard's Tower, and the entire Astral Plane.

SLASH'EM introduces the spell of passwall, which grants phasing temporarily. UnNethack introduces the Iron Ball of Liberation, the Convict quest artifact which grants temporary phasing upon invocation.

Strategy

The use of polymorphing into a phasing monster to gain a combat advantage is dubious, as neither the xorn nor the earth elemental is particularly tough. Xorns cannot wear body armor or cloaks (these will be destroyed upon transforming), and earth elementals cannot wear anything.

Phasing may be used as an alternative to digging, especially for accessing items embedded in walls, or retreating if you're getting surrounded. It can also be used situationally to approach a shop from across an unmapped level and steal from it.

Strategically, phasing can be used to quickly bypass some areas of some maps. It is one way a Rogue can solve their final quest puzzle. Some players will polymorph into a phasing creature for Gehennom mapping to make the search pattern simpler. Walking on the walls helps avoid traps.

Speed runners strive to phase into the correct turret of the Castle, and from there to the gem chamber (for Luck) and the trapdoor to the Valley of the Dead. The Valley, Asmodeus' Lair, and Vlad's Tower can be noticeably abbreviated with phasing. However, phasing is not a universal solution to non-teleport mazes, because xorns are slow and the lack of a cloak makes it dangerous to fight level draining monsters, shades, or Yeenoghu.

Messages

You feel much slimmer.
As a result of prayer, you temporarily gained the ability to pass through walls. This happens if you were stuck in a wall, but there was no safe place to teleport you to.[3]
You start to feel bloated.
You can temporarily pass through walls, and the power will wear off in 4 turns.
You are feeling rather flabby.
You can temporarily pass through walls, and the power will wear off in 2 turns.
You're back to your normal self again.
Your temporary phasing power wore off, you are not stuck in a wall, and you are not hallucinating.
You're back to your unusual self again.
Your temporary phasing power wore off, you are not stuck in a wall, and you are hallucinating.
You feel hemmed in again.
Your temporary phasing power wore off, and you are still stuck in a wall.

References

  1. It is indicated by M1_WALLWALK in monst.c
  2. In NetHack 3.4.3, it had a gap at the upper edge of the map.
  3. src/pray.c in NetHack 3.6.1, line 427

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Editors: After reviewing this page and making necessary edits, please change the {{nethack-361}} tag to the current version's tag or {{noversion}} as appropriate.