1 files changed, 99 insertions, 0 deletions
diff --git a/src/crepe/manager/ComponentManager.cpp b/src/crepe/manager/ComponentManager.cpp
new file mode 100644
index 0000000..745ddae
--- /dev/null
+++ b/src/crepe/manager/ComponentManager.cpp
@@ -0,0 +1,99 @@
+#include "../api/GameObject.h"
+#include "../api/Metadata.h"
+#include "../types.h"
+#include "../util/dbg.h"
+
+#include "ComponentManager.h"
+
+using namespace crepe;
+using namespace std;
+
+ComponentManager::ComponentManager(Mediator & mediator) : Manager(mediator) {
+	mediator.component_manager = *this;
+	dbg_trace();
+}
+ComponentManager::~ComponentManager() { dbg_trace(); }
+
+void ComponentManager::delete_all_components_of_id(game_object_id_t id) {
+	// Do not delete persistent objects
+	if (this->persistent[id]) {
+		return;
+	}
+
+	// Loop through all the types (in the unordered_map<>)
+	for (auto & [type, component_array] : this->components) {
+		// Make sure that the id (that we are looking for) is within the boundaries of the vector<>
+		if (id < component_array.size()) {
+			// Clear the components at this specific id
+			component_array[id].clear();
+		}
+	}
+}
+
+void ComponentManager::delete_all_components() {
+	// Loop through all the types (in the unordered_map<>)
+	for (auto & [type, component_array] : this->components) {
+		// Loop through all the ids (in the vector<>)
+		for (game_object_id_t id = 0; id < component_array.size(); id++) {
+			// Do not delete persistent objects
+			if (!this->persistent[id]) {
+				// Clear the components at this specific id
+				component_array[id].clear();
+			}
+		}
+	}
+
+	this->next_id = 0;
+}
+
+GameObject ComponentManager::new_object(const string & name, const string & tag,
+										const vec2 & position, double rotation, double scale) {
+	// Find the first available id (taking persistent objects into account)
+	while (this->persistent[this->next_id]) {
+		this->next_id++;
+	}
+
+	GameObject object{this->mediator, this->next_id, name, tag, position, rotation, scale};
+	this->next_id++;
+
+	return object;
+}
+
+void ComponentManager::set_persistent(game_object_id_t id, bool persistent) {
+	this->persistent[id] = persistent;
+}
+
+set<game_object_id_t> ComponentManager::get_objects_by_name(const string & name) const {
+	return this->get_objects_by_predicate<Metadata>(
+		[name](const Metadata & data) { return data.name == name; });
+}
+
+set<game_object_id_t> ComponentManager::get_objects_by_tag(const string & tag) const {
+	return this->get_objects_by_predicate<Metadata>(
+		[tag](const Metadata & data) { return data.tag == tag; });
+}
+
+ComponentManager::Snapshot ComponentManager::save() {
+	Snapshot snapshot{};
+	for (const auto & [type, by_id_index] : this->components) {
+		for (game_object_id_t id = 0; id < by_id_index.size(); id++) {
+			const auto & components = by_id_index[id];
+			for (size_t index = 0; index < components.size(); index++) {
+				const Component & component = *components[index];
+				snapshot.components.push_back(SnapshotComponent{
+					.type = type,
+					.id = id,
+					.index = index,
+					.component = component.save(),
+				});
+			}
+		}
+	}
+	return snapshot;
+}
+
+void ComponentManager::restore(const Snapshot & snapshot) {
+	for (const SnapshotComponent & info : snapshot.components) {
+		this->components[info.type][info.id][info.index]->restore(*info.component);
+	}
+}