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, 8 insertions, 0 deletions

diff --git a/crawl-ref/source/tilepick.cc b/crawl-ref/source/tilepick.cc
index 0fe8bbbb32..725947c13c 100644
--- a/crawl-ref/source/tilepick.cc
+++ b/crawl-ref/source/tilepick.cc
@@ -121,6 +121,8 @@ int tileidx_monster_base(const monsters *mon, bool detected)
     bool in_water = feat_is_water(grd(mon->pos()));
 
     int type = mon->type;
+    if (!crawl_state.arena && you.misled())
+        type = mon->get_mislead_type();
 
     // Show only base class for detected monsters.
     if (detected)
@@ -1014,6 +1016,12 @@ int tileidx_monster_base(const monsters *mon, bool detected)
     case MONS_EROLCHA:
         return TILEP_MONS_EROLCHA;
 
+    // rakshasas ('R')
+    case MONS_MARA:
+        return TILEP_MONS_MARA;
+    case MONS_MARA_FAKE:
+        return TILEP_MONS_MARA_FAKE;
+
     // trolls ('T')
     case MONS_PURGY:
         return TILEP_MONS_PURGY;