New (rakshasa) unique: Mara, Lord of Ilusions.

This re-uses several ideas from the Emerald Eye FR, and implements the
spell "Mislead": this grants the "Misled" status effect to the player,
and causes on-level monsters to appear (glyph, name and tile) to be
other monsters. Only their appearance is changed.

Healing potions and rain remove this status effect.

Mara also has a beefed-up version of the Rakshasa clone spell: it
instead creates an "exact" clone (slightly altered spells list, and
non-unique status for his clones). Only two will ever be created at
once.

Finally, he has the spell "Summon Player Ghost". This spell creates a
ghost of the player (though marked as a summon, meaning that it
(shouldn't) register a milestone, though it will be treated as a
self-ghost kill) that is hostile. Only one of these should be existant
at any one point in time.

I'm pretty sure that I haven't broken anything, but would definitely
appreciate someone sanity-checking this commit.

Known minor issue: Kirke's summon ugly things being cast while having
the Misled status causes them to show up with no glyph.

1 files changed, 9 insertions, 0 deletions

diff --git a/crawl-ref/source/enum.h b/crawl-ref/source/enum.h
index 94d2b6328d..322a67c270 100644
--- a/crawl-ref/source/enum.h
+++ b/crawl-ref/source/enum.h
@@ -1203,6 +1203,7 @@ enum duration_type
     DUR_SLIMIFY,
     DUR_TIME_STEP,
     DUR_ICEMAIL_DEPLETED,     // Wait this many turns for full Icemail
+    DUR_MISLED,
 
     NUM_DURATIONS
 };
@@ -2060,6 +2061,8 @@ enum monster_type                      // (int) menv[].type
     MONS_CRAZY_YIUF,
     MONS_SLAVE,
     MONS_GIANT_LEECH,
+    MONS_MARA,
+    MONS_MARA_FAKE,
 
     // Testing monsters
     MONS_TEST_SPAWNER,
@@ -2314,6 +2317,8 @@ enum mon_spellbook_type
     MST_AIZUL,
     MST_EXECUTIONER,
     MST_HAROLD,
+    MST_MARA,
+    MST_MARA_FAKE,
 
     MST_TEST_SPAWNER = 200,
     NUM_MSTYPES,
@@ -2912,6 +2917,10 @@ enum spell_type
     SPELL_BLINK_CLOSE,
     SPELL_BLINK_RANGE,
     SPELL_BLINK_AWAY,
+    SPELL_MISLEAD,
+    SPELL_FAKE_MARA_SUMMON,
+    SPELL_SUMMON_RAKSHASA,
+    SPELL_SUMMON_PLAYER_GHOST,
 
     NUM_SPELLS
 };