changed all non-owned unique_ptr access to reference to the object itself

src/characters.cc

@@ -2,12 +2,11 @@
 
 #include <algorithm>
 
-character::character(const enum race &nrace):
+character::character(RNG &rng, const enum race &nrace):
+        rng{rng},
         race{nrace}, HP{STARTING_HP[race]},
         ATK{STARTING_ATK[race]}, DEF{STARTING_DEF[race]} {}
 
-character::~character() {}
-
 enum race character::get_race() const {
         return race;
 }