Create Formicid species and monsters.

Tavern post:
https://crawl.develz.org/tavern/viewtopic.php?f=8&t=8298

Wierdness & mutations:
- poison weakness
- retractable antennae (can wear headgear and ignore mutation)
- chitin skin (+3 AC)
- most weapons 1-handed, big weapons 2-handed
- permanent stasis
- ability to shaft self
- ability to dig
- Starts with 2 curing pots

3 monster versions of formicids were added:
formicid, a weak fighter
formicid drone, a stronger fighter
formicid venom mage, a magician with olgreb's and mass cure poison

[ Pushing to a branch for experimental playtesting on CSZO.
  Also optimised the new tiles. -nfm ]

1 files changed, 9 insertions, 0 deletions

diff --git a/crawl-ref/source/spl-book.cc b/crawl-ref/source/spl-book.cc
index cde5c969da..a550da6389 100644
--- a/crawl-ref/source/spl-book.cc
+++ b/crawl-ref/source/spl-book.cc
@@ -615,6 +615,15 @@ bool you_cannot_memorise(spell_type spell, bool &undead)
     if (you.species == SP_LAVA_ORC && spell == SPELL_STONESKIN)
         rc = true, undead = false;
 
+    if (you.species == SP_FORMICID
+        && (spell == SPELL_BLINK
+         || spell == SPELL_CONTROL_TELEPORT
+         || spell == SPELL_CONTROLLED_BLINK
+         || spell == SPELL_SWIFTNESS))
+    {
+        rc = true, undead = false;
+    }
+
     return rc;
 }