2 files changed, 30 insertions, 6 deletions
diff --git a/common/tile.cpp b/common/tile.cpp
index 15d0d9d..29e0c84 100644
--- a/common/tile.cpp
+++ b/common/tile.cpp
@@ -1,5 +1,7 @@
 #include "tile.h"
 
+#include <algorithm>
+
 Tile::Tile() {
 	
 }
@@ -8,7 +10,7 @@ Tile::Tile(Tile::Type t, bool re, bool ro) : type(t), red(re), rotated(ro){
 	
 }
 
-int Tile::get_num() {
+int Tile::get_num() const {
 	if(type >= Man_1 && type <= Sou_9) {
 		return (type - Man_1) % 9 + 1;
 	} else {
@@ -16,11 +18,19 @@ int Tile::get_num() {
 	}
 }
 
-bool Tile::operator==(const Tile& other) {
+bool Tile::operator==(const Tile& other) const {
 	return type == other.type;
 }
 
+bool Tile::operator<(const Tile& other) const {
+	return type == other.type ? red : type < other.type;
+}
+
 Tile Tile::operator++(int) {
 	type = Type(type + 1);
 	return *this;
-}
-\ No newline at end of file
+}
+
+void Tiles::sort() {
+	std::sort(begin(), end());
+}
diff --git a/common/tile.h b/common/tile.h
index 93bdb8d..84552aa 100644
--- a/common/tile.h
+++ b/common/tile.h
@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 #include <vector>
+#include <boost/serialization/base_object.hpp>
 
 class Tile {
 	public:
@@ -60,10 +61,13 @@ class Tile {
 		virtual ~Tile(){};
 		
 		//! Get the numeric value of the tile (if one of the man/pin/sou-sets).
-		int get_num();
+		int get_num() const;
 		
 		//! Compare two tiles. Equal if type matches; flags are not compared.
-		bool operator==(const Tile& other);
+		bool operator==(const Tile& other) const;
+		
+		//! Compare two tiles. Ordered by type, red < non-red.
+		bool operator<(const Tile& other) const;
 		
 		//! Increment type. Useful for iterating over all possible types.
 		Tile operator++(int);
@@ -76,6 +80,16 @@ class Tile {
 		}
 };
 
-typedef std::vector<Tile> Tiles;
+//! List of tiles.
+class Tiles : public std::vector<Tile> {
+	public:
+		//! Sort the list of tiles.
+		void sort();
+		
+		template<class Archive>
+		void serialize(Archive & ar, const unsigned int version) {
+			ar & boost::serialization::base_object<std::vector<Tile> >(*this);
+		}
+};
 
 #endif