make items subclass feature

src/include/item.h

 #include "coord.h"
+#include "feature.h"
 #include <string>
 
 #ifndef ITEM_H
 #define ITEM_H
 
 
-class Item {
+class Item : public Feature {
 	public:
 		enum Location {OnGround, InPack};
 		enum Identified {Known, Unknown};
-		Item(Location, Identified, Coord, std::string);
-		Coord getCoord();
+		Item(char, Location, Identified, Coord, std::string);
 		std::string getName();	
 		Location getLocation();
 		Identified isIdentified();

src/item.cpp

 #include "include/item.h"
 
-Item::Item(Location loc, Identified id, Coord coord, std::string name)
-	: location(loc)
+Item::Item(char symbol, Location loc, Identified id, Coord coord, std::string name)
+	: Feature(symbol, coord)
+	, location(loc)
 	, knowledge(id)
-	, coord(coord)
 	, name(name)
 {}
 
-Coord Item::getCoord() {
-	return coord;
-}
-
 std::string Item::getName() {
 	return name;
 }
@@ -25,4 +21,4 @@ Item::Identified Item::isIdentified() {
 
 bool Item::operator==(const Item& other) const {
 	return this == &other;
-}
\ No newline at end of file
+}