Move ability_type::acquired to p_ptr struct

This is justified by the fact that the 'acquired' flag is actually a
player-centered bit of information and must be
loaded/saved. Everything else in ability_type is defined by the *.txt
files.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/player_type.cc b/src/player_type.cc
new file mode 100644
index 00000000..0cc66de7
--- /dev/null
+++ b/src/player_type.cc
@@ -0,0 +1,28 @@
+#include "player_type.hpp"
+
+#include <algorithm>
+
+bool player_type::has_ability(u16b ability_idx) const
+{
+	return std::find(
+	        abilities.begin(),
+	        abilities.end(),
+	        ability_idx) != abilities.end();
+}
+
+void player_type::gain_ability(u16b ability_idx)
+{
+	// Duplicates don't really matter, so let's just
+	// accept whatever value we get without checking
+	// anything.
+	abilities.push_back(ability_idx);
+}
+
+void player_type::lose_ability(u16b ability_idx)
+{
+	abilities.erase(
+	        std::remove(
+	                abilities.begin(),
+	                abilities.end(),
+	                ability_idx));
+}