5 files changed, 16 insertions, 12 deletions
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
index a4bc101..586919d 100644
--- a/src/crepe/api/LoopManager.cpp
+++ b/src/crepe/api/LoopManager.cpp
@@ -35,10 +35,8 @@ void LoopManager::start() {
 void LoopManager::set_running(bool running) { this->game_running = running; }
 
 void LoopManager::fixed_update() {
-	PhysicsSystem phys;
-	phys.update();
-	CollisionSystem col;
-	col.update();
+	this->get_system<PhysicsSystem>().update();
+	this->get_system<CollisionSystem>().update();
 }
 
 void LoopManager::loop() {
diff --git a/src/crepe/api/LoopManager.h b/src/crepe/api/LoopManager.h
index f6904be..37f13ac 100644
--- a/src/crepe/api/LoopManager.h
+++ b/src/crepe/api/LoopManager.h
@@ -4,6 +4,7 @@
 
 #include "../ComponentManager.h"
 #include "../system/System.h"
+#include "api/SceneManager.h"
 
 namespace crepe {
 
@@ -71,7 +72,9 @@ private:
 private:
 	//! Component manager instance
 	ComponentManager component_manager{};
-
+public:
+	//! Scene manager instance
+	SceneManager scene_manager{component_manager};
 private:
 	/**
 	 * \brief Collection of System instances
diff --git a/src/crepe/api/Script.h b/src/crepe/api/Script.h
index 2b70379..939d142 100644
--- a/src/crepe/api/Script.h
+++ b/src/crepe/api/Script.h
@@ -63,7 +63,14 @@ protected:
 	 */
 	template <typename T>
 	std::vector<std::reference_wrapper<T>> get_components() const;
-
+	
+	/**
+	 * \brief Gets game object id this script is attached to
+	 *
+	 * \returns game object id
+	 */
+	game_object_id_t get_game_object_id() const {return this->game_object_id;};
+	
 protected:
 	// NOTE: Script must have a constructor without arguments so the game programmer doesn't need
 	// to manually add `using Script::Script` to their concrete script class.
diff --git a/src/crepe/system/CollisionSystem.cpp b/src/crepe/system/CollisionSystem.cpp
index df0ee41..3e73b44 100644
--- a/src/crepe/system/CollisionSystem.cpp
+++ b/src/crepe/system/CollisionSystem.cpp
@@ -18,11 +18,9 @@
 
 using namespace crepe;
 
-CollisionSystem::CollisionSystem() {}
-
 void CollisionSystem::update() {
 	// Get collider components and keep them seperate
-	ComponentManager & mgr = ComponentManager::get_instance();
+	ComponentManager & mgr = this->component_manager;
 	std::vector<std::reference_wrapper<BoxCollider>> boxcolliders	= mgr.get_components_by_type<BoxCollider>();
 	std::vector<std::reference_wrapper<CircleCollider>> circlecolliders	= mgr.get_components_by_type<CircleCollider>();
 	
@@ -185,7 +183,7 @@ void CollisionSystem::static_collision_handler(CollisionInfo& info){
 }
 
 std::vector<std::pair<CollisionSystem::CollidedInfoStor,CollisionSystem::CollidedInfoStor>> CollisionSystem::check_collisions(const std::vector<std::reference_wrapper<BoxCollider>>& boxcolliders, const std::vector<std::reference_wrapper<CircleCollider>>& circlecolliders) {
-	ComponentManager & mgr = ComponentManager::get_instance();
+	ComponentManager & mgr = this->component_manager;
 	std::vector<std::pair<CollidedInfoStor,CollidedInfoStor>> collisions_ret;
 
 	// TODO:
diff --git a/src/crepe/system/CollisionSystem.h b/src/crepe/system/CollisionSystem.h
index 0518b34..d94f6bc 100644
--- a/src/crepe/system/CollisionSystem.h
+++ b/src/crepe/system/CollisionSystem.h
@@ -70,8 +70,6 @@ public:
 
 public:
 
-	CollisionSystem();
-
 	//! Updates the collision system by checking for collisions between colliders and handling them.
 	void update() override;