merge `master` into `loek/savemgr`

1 files changed, 75 insertions, 0 deletions

diff --git a/src/example/scene_manager.cpp b/src/example/scene_manager.cpp
new file mode 100644
index 0000000..f46dc36
--- /dev/null
+++ b/src/example/scene_manager.cpp
@@ -0,0 +1,75 @@
+#include <iostream>
+
+#include <crepe/ComponentManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Metadata.h>
+#include <crepe/api/Scene.h>
+#include <crepe/api/SceneManager.h>
+#include <crepe/api/Vector2.h>
+
+using namespace crepe;
+using namespace std;
+
+class ConcreteScene1 : public Scene {
+public:
+	ConcreteScene1(string name) : Scene(name) {}
+
+	void load_scene() {
+		GameObject object1(0, "scene_1", "tag_scene_1", Vector2{0, 0}, 0, 1);
+		GameObject object2(1, "scene_1", "tag_scene_1", Vector2{1, 0}, 0, 1);
+		GameObject object3(2, "scene_1", "tag_scene_1", Vector2{2, 0}, 0, 1);
+	}
+};
+
+class ConcreteScene2 : public Scene {
+public:
+	ConcreteScene2(string name) : Scene(name) {}
+
+	void load_scene() {
+		GameObject object1(0, "scene_2", "tag_scene_2", Vector2{0, 0}, 0, 1);
+		GameObject object2(1, "scene_2", "tag_scene_2", Vector2{0, 1}, 0, 1);
+		GameObject object3(2, "scene_2", "tag_scene_2", Vector2{0, 2}, 0, 1);
+		GameObject object4(3, "scene_2", "tag_scene_2", Vector2{0, 3}, 0, 1);
+	}
+};
+
+int main() {
+	SceneManager & scene_mgr = SceneManager::get_instance();
+
+	// Add the scenes to the scene manager
+	scene_mgr.add_scene<ConcreteScene1>("scene1");
+	scene_mgr.add_scene<ConcreteScene2>("scene2");
+
+	// There is no need to call set_next_scene() at the beginnen, because the first scene will be automatically set as the next scene
+	// Load scene1 (the first scene added)
+	scene_mgr.load_next_scene();
+
+	// Get the Metadata components of each GameObject of Scene1
+	ComponentManager & component_mgr = ComponentManager::get_instance();
+	vector<reference_wrapper<Metadata>> metadata
+		= component_mgr.get_components_by_type<Metadata>();
+
+	cout << "Metadata components of Scene1:" << endl;
+	// Print the Metadata
+	for (auto & m : metadata) {
+		cout << "Id: " << m.get().game_object_id << " Name: " << m.get().name
+			 << " Tag: " << m.get().tag << endl;
+	}
+
+	// Set scene2 as the next scene
+	scene_mgr.set_next_scene("scene2");
+	// Load scene2
+	scene_mgr.load_next_scene();
+
+	// Get the Metadata components of each GameObject of Scene2
+	metadata = component_mgr.get_components_by_type<Metadata>();
+
+	cout << "Metadata components of Scene2:" << endl;
+	// Print the Metadata
+	for (auto & m : metadata) {
+		cout << "Id: " << m.get().game_object_id << " Name: " << m.get().name
+			 << " Tag: " << m.get().tag << endl;
+	}
+
+	return 0;
+}