Add getters for the event class. Add getGate function to wire class.

src/Event.cpp

@@ -7,6 +7,21 @@ Event::Event(int num, int value, int setTime, Wire * output){
 	out = output;
 }
 
+int Event::getValue() const
+{
+	return evValue;
+}
+
+int Event::getTime() const
+{
+	return evTime;
+}
+
+Wire * Event::getOutput() const
+{
+	return out;
+}
+
 bool operator<(const Event &e1, const Event &e2) {
 	if(e1.evTime == e2.evTime) {
 		return e1.evNum > e2.evNum;

src/Event.h

@@ -8,6 +8,10 @@ class Event {
 	public:
 		Event(int num, int value, int setTime, Wire * output);
 		friend bool operator<(const Event &e1, const Event &e2);
+
+		int getValue() const;
+		int getTime() const;
+		Wire* getOutput() const;
 	private:
 		int evNum, evValue, evTime;
 		Wire *out;

src/Wire.cpp

@@ -23,13 +23,17 @@ int Wire::getValue(int wantedTime) const
 	}
 }
 
-void Wire::setValue(int newValue, int setTime)
+bool Wire::setValue(int newValue, int setTime)
 {
-	historyTimes.push_back(setTime);
-	historyValues.push_back(newValue);
-	if (lastEvent < setTime) {
-		lastEvent = setTime;
+	if (getValue(setTime) != newValue) {
+		historyTimes.push_back(setTime);
+		historyValues.push_back(newValue);
+		if (lastEvent < setTime) {
+			lastEvent = setTime;
+		}
+		return true; // I changed the value
 	}
+	return false; // Nothing changed
 }
 
 void Wire::convertToIO(string newName)
@@ -38,6 +42,14 @@ void Wire::convertToIO(string newName)
 	isPrint = true;
 }
 
+Gate * Wire::getGate(int index)
+{
+	if (index >= gates.size()) {
+		return gates[index];
+	}
+	return nullptr;
+}
+
 int Wire::getNumber() const
 {
 	return WireNumber;

src/Wire.h

@@ -19,8 +19,9 @@ class Wire {
 		int getNumber() const;
 		string getName() const;
 
-		void setValue(int newValue, int setTime);
+		bool setValue(int newValue, int setTime);
 		void convertToIO(string newName);
+		Gate* getGate(int index);
 
 	private:
 		int WireNumber, value, lastEvent;