(svn r23233) -Codechange: Refactor maximum and actually transported cargo amount of towns into a reusable struct.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/town_type.h b/src/town_type.h
index 14d840cb0..39deb6167 100644
--- a/src/town_type.h
+++ b/src/town_type.h
@@ -107,4 +107,22 @@ typedef SimpleTinyEnumT<TownFounding, byte> TownFoundingByte;
 
 static const uint MAX_LENGTH_TOWN_NAME_CHARS = 32; ///< The maximum length of a town name in characters including '\0'
 
+/** Store the maximum and actually transported cargo amount for the current and the last month. */
+template <typename Tstorage>
+struct TransportedCargoStat {
+	Tstorage old_max;  ///< Maximum amount last month
+	Tstorage new_max;  ///< Maximum amount this month
+	Tstorage old_act;  ///< Actually transported last month
+	Tstorage new_act;  ///< Actually transported this month
+
+	TransportedCargoStat() : old_max(0), new_max(0), old_act(0), new_act(0) {}
+
+	/** Update stats for a new month. */
+	void NewMonth()
+	{
+		this->old_max = this->new_max; this->new_max = 0;
+		this->old_act = this->new_act; this->new_act = 0;
+	}
+};
+
 #endif /* TOWN_TYPE_H */