adding cs142 code

cs142/lab10/ArenaInterface.h

@@ -0,0 +1,56 @@
+#pragma once
+#include <iostream>
+#include <string>
+#include <vector>
+#include "FighterInterface.h"
+using namespace std;
+
+/*
+	WARNING: It is expressly forbidden to modify any part of this document, including its name
+*/
+class ArenaInterface
+{
+	public:
+		ArenaInterface(){}
+		virtual ~ArenaInterface(){}
+		
+		/*
+			addFighter(string)
+
+			Adds a new fighter to the collection of fighters in the arena. Do not allow 
+			duplicate names.  Reject any string that does not adhere to the format 
+			outlined in the lab specs.
+
+			Return true if a new fighter was added; false otherwise.
+		*/
+		virtual bool addFighter(string info) = 0;
+
+		/*
+			removeFighter(string)
+
+			Removes the fighter whose name is equal to the given name.  Does nothing if 
+			no fighter is found with the given name.
+
+			Return true if a fighter is removed; false otherwise.
+		*/
+		virtual bool removeFighter(string name) = 0;
+		
+		/*
+			getFighter(string)
+
+			Returns the memory address of a fighter whose name is equal to the given 
+			name.  Returns NULL if no fighter is found with the given name.
+
+			Return a memory address if a fighter is found; NULL otherwise.
+		*/
+		virtual FighterInterface* getFighter(string name) = 0;
+		
+		/*
+			getSize()
+
+			Returns the number of fighters in the arena.
+
+			Return a non-negative integer.
+		*/
+		virtual int getSize() = 0;
+};