Improved test by adding one Transform component too much

1 files changed, 24 insertions, 22 deletions

diff --git a/src/example/ecs.cpp b/src/example/ecs.cpp
index 2eb09b2..5646edd 100644
--- a/src/example/ecs.cpp
+++ b/src/example/ecs.cpp
@@ -24,31 +24,33 @@ int main() {
 		rightLeg.set_parent(body);
 		leftLeg.set_parent(body);
 
-		// Get the Metadata and Transform components of each GameObject
-		ComponentManager & mgr = ComponentManager::get_instance();
-		vector<reference_wrapper<Metadata>> metadata
-			= mgr.get_components_by_type<Metadata>();
-		vector<reference_wrapper<Transform>> transform
-			= mgr.get_components_by_type<Transform>();
-
-		// Print the Metadata and Transform components
-		for (auto & m : metadata) {
-			cout << "Id: " << m.get().game_object_id
-				 << " Name: " << m.get().name << " Tag: " << m.get().tag
-				 << " Parent: " << m.get().parent << " Children: ";
-			for (auto & c : m.get().children) {
-				cout << c << " ";
-			}
-			cout << endl;
-		}
-		for (auto & t : transform) {
-			cout << "Id: " << t.get().game_object_id << " Position: ["
-				 << t.get().position.x << ", " << t.get().position.y << "]"
-				 << endl;
-		}
+		// Adding a second Transform component is not allowed and will invoke an exception
+		body.add_component<Transform>(Point{10, 10}, 0, 1);
 	} catch (const exception & e) {
 		cerr << e.what() << endl;
 	}
 
+	// Get the Metadata and Transform components of each GameObject
+	ComponentManager & mgr = ComponentManager::get_instance();
+	vector<reference_wrapper<Metadata>> metadata
+		= mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform
+		= mgr.get_components_by_type<Transform>();
+
+	// Print the Metadata and Transform components
+	for (auto & m : metadata) {
+		cout << "Id: " << m.get().game_object_id << " Name: " << m.get().name
+			 << " Tag: " << m.get().tag << " Parent: " << m.get().parent
+			 << " Children: ";
+		for (auto & c : m.get().children) {
+			cout << c << " ";
+		}
+		cout << endl;
+	}
+	for (auto & t : transform) {
+		cout << "Id: " << t.get().game_object_id << " Position: ["
+			 << t.get().position.x << ", " << t.get().position.y << "]" << endl;
+	}
+
 	return 0;
 }