issue #6: implement NSSet

cocos2dx/cocoa/NSSet.cpp

@@ -22,3 +22,60 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/
 
+#include "NSSet.h"
+
+using namespace std;
+
+NSSet::NSSet(void)
+{
+}
+
+NSSet::NSSet(const NSSet &rSetObject) : m_set(rSetObject.m_set)
+{
+}
+
+NSSet::~NSSet(void)
+{
+}
+
+NSSet* NSSet::copy(void)
+{
+	NSSet *pSet = new NSSet(*this);
+
+	return pSet;
+}
+
+NSSet* NSSet::mutableCopy(void)
+{
+	return copy();
+}
+
+int NSSet::count(void)
+{
+	return (int)m_set.size();
+}
+
+void NSSet::addObject(NSObject *pObject)
+{
+	m_set.insert(pObject);
+}
+
+void NSSet::removeObject(NSObject *pObject)
+{
+	m_set.erase(pObject);
+}
+
+bool NSSet::containsObject(NSObject *pObject)
+{
+	return m_set.find(pObject) != m_set.end();
+}
+
+NSSetIterator NSSet::begin(void)
+{
+	return m_set.begin();
+}
+
+NSSetIterator NSSet::end(void)
+{
+	return m_set.end();
+}

cocos2dx/cocoa/NSSet.h

@@ -25,5 +25,32 @@ THE SOFTWARE.
 #ifndef __NS_SET_H__
 #define __NS_SET_H__
 
+#include <set>
+#include "NSObject.h"
+
+typedef std::set<NSObject *>::iterator NSSetIterator;
+
+class NSSet : public NSObject
+{
+public:
+	NSSet(void);
+	NSSet(const NSSet &rSetObject);
+	virtual ~NSSet(void);
+
+	NSSet* copy();
+	NSSet* mutableCopy();
+	int count();
+	void addObject(NSObject *pObject);
+	void removeObject(NSObject *pObject);
+	bool containsObject(NSObject *pObject);
+	NSSetIterator begin();
+	NSSetIterator end();
+
+private:
+	std::set<NSObject *> m_set;
+};
+
+typedef NSSet NSMutableSet;
+
 #endif // __NS_SET_H__