[Refactor] hengband#1498 Defined decrease_chance()

Hourier · Sep 18, 2021 · ee70bdc · ee70bdc
1 parent e49bae2
commit ee70bdc
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diff --git a/src/timed-effect/player-stun.cpp b/src/timed-effect/player-stun.cpp
@@ -27,6 +27,29 @@ StunRank PlayerStun::get_rank(short value) const
     return StunRank::NONE;
 }
 
+/*!
+ * @brief 朦朧ランクに応じて各種失率を上げる.
+ * @return 朦朧ならば15%、ひどく朦朧ならば25%.
+ * @details
+ * 意識不明瞭ならばそもそも動けないのでこのメソッドを通らない.
+ * しかし今後の拡張を考慮して100%としておく.
+ */
+int PlayerStun::decrease_chance() const
+{
+    switch (this->get_rank()) {
+    case StunRank::NONE:
+        return 0;
+    case StunRank::NORMAL:
+        return 15;
+    case StunRank::HARD:
+        return 25;
+    case StunRank::UNCONSCIOUS:
+        return 100;
+    default:
+        throw("Invalid stun rank is specified!");
+    }
+}
+
 void PlayerStun::set(short value)
 {
 }
diff --git a/src/timed-effect/player-stun.h b/src/timed-effect/player-stun.h
@@ -15,6 +15,7 @@ class PlayerStun {
     short current() const;
     StunRank get_rank() const;
     StunRank get_rank(short value) const;
+    int decrease_chance() const;
     void set(short value);
 
 private: