6 files changed, 15 insertions, 24 deletions
diff --git a/src/crepe/Particle.cpp b/src/crepe/Particle.cpp
index ab55f37..1c3c138 100644
--- a/src/crepe/Particle.cpp
+++ b/src/crepe/Particle.cpp
@@ -2,7 +2,7 @@
 
 using namespace crepe;
 
-void Particle::reset(uint32_t lifespan, Vector2 position, Vector2 velocity,
+void Particle::reset(uint32_t lifespan, const Vector2& position,const Vector2& velocity,
 					 double angle) {
 	// Initialize the particle state
 	this->time_in_life = 0;
diff --git a/src/crepe/Particle.h b/src/crepe/Particle.h
index 06431bb..8782382 100644
--- a/src/crepe/Particle.h
+++ b/src/crepe/Particle.h
@@ -30,9 +30,8 @@ public:
 	//! The time the particle has been alive, in milliseconds.
 	uint32_t time_in_life = 0;
 	//! The angle at which the particle is oriented or moving.
-	double angle;
+	double angle = 0;
 
-	Particle() = default;
 	/**
 	 * \brief Resets the particle with new properties.
 	 *
@@ -44,7 +43,7 @@ public:
 	 * \param velocity  The initial velocity of the particle.
 	 * \param angle     The angle of the particle's trajectory or orientation.
 	 */
-	void reset(uint32_t lifespan, Vector2 position, Vector2 velocity,
+	void reset(uint32_t lifespan, const Vector2& position,const Vector2& velocity,
 			   double angle);
 	/**
 	 * \brief Updates the particle's state.
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index e7f298c..7032f9e 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -3,16 +3,9 @@
 
 using namespace crepe;
 
-ParticleEmitter::ParticleEmitter(uint32_t game_object_id, const Data & data)
+ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Data & data)
 	: Component(game_object_id), data(data) {
 	for (size_t i = 0; i < this->data.max_particles; i++) {
 		this->data.particles.emplace_back();
 	}
 }
-
-ParticleEmitter::~ParticleEmitter() {
-	std::vector<Particle>::iterator it = this->data.particles.begin();
-	while (it != this->data.particles.end()) {
-		it = this->data.particles.erase(it);
-	}
-}
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index 83a1588..6e29e60 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -48,7 +48,7 @@ public:
 		//! position of the emitter
 		Vector2 position;
 		//! maximum number of particles
-		const uint32_t max_particles = 0;
+		const unsigned int max_particles = 0;
 		//! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
 		double emission_rate = 0;
 		//! min speed of the particles
@@ -80,8 +80,7 @@ public:
 	 * \param game_object_id  Identifier for the game object using this emitter.
 	 * \param data            Configuration data defining particle properties.
 	 */
-	ParticleEmitter(uint32_t game_object_id, const Data & data);
-	~ParticleEmitter();
+	ParticleEmitter(game_object_id_t game_object_id, const Data & data);
 
 public:
 	//! Configuration data for particle emission settings.
diff --git a/src/crepe/system/ParticleSystem.h b/src/crepe/system/ParticleSystem.h
index 3155df1..3a118fb 100644
--- a/src/crepe/system/ParticleSystem.h
+++ b/src/crepe/system/ParticleSystem.h
@@ -2,13 +2,15 @@
 
 #include <cstdint>
 
+#include "System.h"
+
 namespace crepe {
 class ParticleEmitter;
 class Transform;
 /**
  	* \brief ParticleSystem class responsible for managing particle emission, updates, and bounds checking.
  	*/
-class ParticleSystem {
+class ParticleSystem : public System{
 public:
 	/**
 		* \brief Default constructor.
@@ -18,7 +20,7 @@ public:
 	/**
 		* \brief Updates all particle emitters by emitting particles, updating particle states, and checking bounds.
 		*/
-	void update();
+	void update() override;
 
 private:
 	/**
@@ -68,7 +70,7 @@ private:
 	//! Counter to count updates to determine how many times emit_particle is called.
 	uint32_t update_count = 0;
 	//! Determines the lowest amount of emission rate (1000 = 0.001 = 1 particle per 1000 updates).
-	static constexpr uint32_t MAX_UPDATE_COUNT = 100;
+	static constexpr unsigned int MAX_UPDATE_COUNT = 100;
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/PhysicsSystem.h b/src/crepe/system/PhysicsSystem.h
index cc13b70..038c120 100644
--- a/src/crepe/system/PhysicsSystem.h
+++ b/src/crepe/system/PhysicsSystem.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "System.h"
+
 namespace crepe {
 /**
  * \brief System that controls all physics
@@ -7,18 +9,14 @@ namespace crepe {
  * This class is a physics system that uses a rigidbody and transform
  * to add physics to a game object.
  */
-class PhysicsSystem {
+class PhysicsSystem : public System {
 public:
 	/**
-	 * Constructor is default
-	 */
-	PhysicsSystem() = default;
-	/**
 	 * \brief updates the physics system.
 	 * 
 	 * It calculates new velocties and changes the postion in the transform.
 	 */
-	void update();
+	void update() override;
 };
 
 } // namespace crepe