Abstraction and serialization for entities

entities/ISerializable.h

@@ -0,0 +1,23 @@
+#ifndef ISERIALIZABLE_H
+#define ISERIALIZABLE_H
+
+#include <QDataStream>
+
+
+class ISerializable {
+public:
+    virtual void serialize(QDataStream &output) = 0;
+    virtual void deserialize(QDataStream &input) = 0;
+
+    friend QDataStream &operator<<(QDataStream &output, ISerializable &s) {
+        s.serialize(output);
+        return output;
+    }
+
+    friend QDataStream &operator>>(QDataStream  &input, ISerializable &s) {
+        s.deserialize(input);
+        return input;
+    }
+};
+
+#endif // ISERIALIZABLE_H