throwing potions now identifies it

src/arguments.cc

@@ -288,7 +288,7 @@ const char *ENEMIES_LIST = "\
       If PC doesn't have enough gold, hit instead with a strong attack of fixed Atk;\n\
       Upon death, drops all stolen gold plus 5 extra.\n\n\
 - Witch 'Z' (100 HP, 20 Atk, 15 Def, 1/2 Hit Rate):\n\
-      Upon a successful hit, has a 1/5 chance of applying a random potion onto PC.\n\n\
+      Upon a successful hit, has a 1/5 chance of applying a random potion onto PC (starts to take effect the next turn).\n\n\
 - Hacker 'h' (90 HP, 15 Atk, 30 Def, 1/2 Hit Rate):\n\
       He has been in grinding in MC for too long.\n\n\
 - Baby Dragon 'B' (140 HP, 20 Atk, 40 Def, 1/3 Hit Rate):\n\

src/enemies/witch.cc

@@ -1,6 +1,7 @@
 #include "witch.h"
 
 #include "../constants.h"
+#include "../player.h"
 
 witch::witch(RNG *rng, const feature enabled_features, const position &pos,
              const int gen_room_num):
@@ -22,6 +23,8 @@ long_result witch::attack(character *ch) {
                 auto npotion = new_potion(type, {0, 0});
                 res.msg += std::string("Z's potion of ") +
                            npotion->get_name() + " spilled onto PC. ";
+                static_cast<player_base *>(ch)->set_potion_known(
+                        npotion->get_type());
                 ch->apply_effect(std::move(npotion));
         }
 

src/player.cc

@@ -141,9 +141,12 @@ long_result player_base::throw_potion(level *lvl, std::unique_ptr<potion> p,
                 if (flag & WHAT_WALL)
                         return {THROWN, "The potion shattered against a wall. "};
                 else if (flag & WHAT_ENEMY) {
+                        std::string name{p->get_name()};
                         character *ch = lvl->get_elist()[flag ^ WHAT_ENEMY];
+                        known_potions |= 1 << p->get_type();
                         ch->apply_effect(std::move(p));
-                        return {THROWN, "The potion's contents spilled on " +
+                        return {THROWN, "The potion of " + name +
+                                "'s contents spilled on " +
                                 ch->get_abbrev() + ". "};
                 }
         }

src/player.h

@@ -35,6 +35,9 @@ protected:
 
         inventory inv;
         int MAX_THROW_DIST;
+
+        long_result throw_potion(level *lvl,
+                                 std::unique_ptr<potion> p, direction dir);
 public:
         player_base(RNG *rng, const feature enabled_features,
                     const enum race &nrace);
@@ -59,9 +62,6 @@ public:
         int get_DEF() const;
         int get_HP() const;
 
-        long_result throw_potion(level *lvl,
-                                 std::unique_ptr<potion> p, direction dir);
-
         void set_potion_known(const potion_type &type);
 };