add several functions and update others

src/Event.h

@@ -6,7 +6,7 @@ using namespace std;
 
 class Event {
 	public:
-		Event(int num, int value, int setTime, Wire * output);
+		Event(int value, int setTime, Wire * output);
 		friend bool operator<(const Event &e1, const Event &e2);
 
 		int getValue() const;
@@ -16,6 +16,7 @@ class Event {
 	private:
 		int evNum, evValue, evTime;
 		Wire *out;
+		static int numOfEvents;
 };
 
 #endif // !EVENT

src/Simulation.h

@@ -31,7 +31,6 @@ class Simulation {
 		priority_queue<Event> e;
 		vector<Gate*> gates;
 		vector<Wire*> wires;
-		int eventNum;
 };
 
 #endif // !SIMULATION

src/Wire.h

@@ -22,7 +22,8 @@ class Wire {
 		string getName() const;
 		int getLast() const;
 
-		bool setValue(int newValue, int setTime);
+		void setValue(int newValue, int setTime);
+		bool doesChange(int newValue, int setTime);
 		void convertToIO(string newName);
 		Gate* getGate(int index);
 		void setLast(int last);