work in progress, can be branched/merged

src/potions.cc

@@ -0,0 +1,13 @@
+#include "potions.h"
+
+void new_potion(std::unique_ptr<potion> &pp, potion_type type,
+                const position &pos) {
+        switch (type) {
+        case potion_type::restore_health:
+                pp = std::make_unique<class restore_health>(pos);
+                break;
+
+        default:
+                break;
+        }
+}