1 files changed, 67 insertions, 0 deletions
diff --git a/Ianimal/Ianimal.cpp b/Ianimal/Ianimal.cpp
new file mode 100644
index 0000000..5aa70cd
--- /dev/null
+++ b/Ianimal/Ianimal.cpp
@@ -0,0 +1,67 @@
+#include <string>
+#include <iostream>
+#include <map>
+#include <vector>
+
+using namespace std;
+
+class Node { //abstract base class
+	public:
+		virtual string get_name() = 0; //signal output
+};
+
+class A_node: public Node {
+	public:
+		string get_name(){ return "A"; };
+		string get_occupation(){ return "an A"; };
+};
+
+class B_node: public Node {
+	public:
+		string get_name(){ return "B"; };
+		string get_occupation(){ return "a B"; };
+};
+
+class C_node: public Node {
+	public:
+		string get_name(){ return "C"; };
+		string get_occupation(){ return "a C"; };
+};
+
+class Node_factory {
+	public:
+		template <typename T>
+		T* clone(T* proto) {
+			return new T();
+		};
+		Node_factory() {
+			add_type("A",new A_node());
+			add_type("B",new B_node());
+			add_type("C",new C_node());
+		}
+		Node *get_node(string type) {
+			if (type=="A") return new A_node();
+			if (type=="B") return new B_node();
+			if (type=="C") return new C_node();
+		};
+		map<string,Node*> type_map;
+		void add_type(string type,Node *proto){
+			type_map[type]=proto;
+		};
+		Node *create(string type) {
+			if (type_map.find(type)!=type_map.end()) {
+				return (Node*)clone(type_map[type]);
+			}
+		}
+};
+
+int main() {
+	Node_factory f=Node_factory();
+	vector<Node*> nodes;
+	nodes.push_back(f.get_node("A"));
+	nodes.push_back(f.get_node("B"));
+	nodes.push_back(f.get_node("C"));
+	for (auto &i: nodes) {
+		cout << i->get_name() << endl;
+	}
+}
+\ No newline at end of file