23 files changed, 51 insertions, 41 deletions
diff --git a/src/crepe/Collider.cpp b/src/crepe/Collider.cpp
index 13a3f33..bbec488 100644
--- a/src/crepe/Collider.cpp
+++ b/src/crepe/Collider.cpp
@@ -2,4 +2,4 @@
 
 using namespace crepe;
 
-Collider::Collider(uint32_t gameObjectId) : Component(gameObjectId) {}
+Collider::Collider(game_object_id_t id) : Component(id) {}
diff --git a/src/crepe/Collider.h b/src/crepe/Collider.h
index 68a7d1d..827f83d 100644
--- a/src/crepe/Collider.h
+++ b/src/crepe/Collider.h
@@ -6,7 +6,7 @@ namespace crepe {
 
 class Collider : public Component {
 public:
-	Collider(uint32_t game_object_id);
+	Collider(game_object_id_t id);
 
 	int size;
 };
diff --git a/src/crepe/Component.cpp b/src/crepe/Component.cpp
index cdbda67..af439ed 100644
--- a/src/crepe/Component.cpp
+++ b/src/crepe/Component.cpp
@@ -1,5 +1,6 @@
 #include "Component.h"
+#include "types.h"
 
 using namespace crepe;
 
-Component::Component(uint32_t id) : GAME_OBJECT_ID(id) {}
+Component::Component(game_object_id_t id) : GAME_OBJECT_ID(id) {}
diff --git a/src/crepe/Component.h b/src/crepe/Component.h
index 41badc3..ee795f4 100644
--- a/src/crepe/Component.h
+++ b/src/crepe/Component.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "types.h"
+
 #include <cstdint>
 
 namespace crepe {
@@ -19,7 +21,7 @@ protected:
 	/**
 	 * \param id The id of the GameObject this component belongs to
 	 */
-	Component(uint32_t id);
+	Component(game_object_id_t id);
 
 public:
 	virtual ~Component() = default;
@@ -36,7 +38,7 @@ public:
 
 public:
 	//! The id of the GameObject this component belongs to
-	const uint32_t GAME_OBJECT_ID;
+	const game_object_id_t GAME_OBJECT_ID;
 	//! Whether the component is active
 	bool active = true;
 };
diff --git a/src/crepe/ComponentManager.cpp b/src/crepe/ComponentManager.cpp
index 01bc8d7..85149c8 100644
--- a/src/crepe/ComponentManager.cpp
+++ b/src/crepe/ComponentManager.cpp
@@ -9,7 +9,7 @@ ComponentManager & ComponentManager::get_instance() {
 	return instance;
 }
 
-void ComponentManager::delete_all_components_of_id(uint32_t id) {
+void ComponentManager::delete_all_components_of_id(game_object_id_t id) {
 	// Loop through all the types (in the unordered_map<>)
 	for (auto & [type, componentArray] : this->components) {
 		// Make sure that the id (that we are looking for) is within the boundaries of the vector<>
diff --git a/src/crepe/ComponentManager.h b/src/crepe/ComponentManager.h
index f3b0ace..c8c196c 100644
--- a/src/crepe/ComponentManager.h
+++ b/src/crepe/ComponentManager.h
@@ -43,7 +43,7 @@ public:
 	 * \return The created component
 	 */
 	template <typename T, typename... Args>
-	T & add_component(uint32_t id, Args &&... args);
+	T & add_component(game_object_id_t id, Args &&... args);
 	/**
 	 * \brief Delete all components of a specific type and id
 	 * 
@@ -53,7 +53,7 @@ public:
 	 * \param id The id of the GameObject this component belongs to
 	 */
 	template <typename T>
-	void delete_components_by_id(uint32_t id);
+	void delete_components_by_id(game_object_id_t id);
 	/**
 	 * \brief Delete all components of a specific type
 	 * 
@@ -70,7 +70,7 @@ public:
 	 * 
 	 * \param id The id of the GameObject this component belongs to
 	 */
-	void delete_all_components_of_id(uint32_t id);
+	void delete_all_components_of_id(game_object_id_t id);
 	/**
 	 * \brief Delete all components
 	 * 
@@ -88,7 +88,7 @@ public:
 	 */
 	template <typename T>
 	std::vector<std::reference_wrapper<T>>
-	get_components_by_id(uint32_t id) const;
+	get_components_by_id(game_object_id_t id) const;
 	/**
 	 * \brief Get all components of a specific type
 	 * 
diff --git a/src/crepe/ComponentManager.hpp b/src/crepe/ComponentManager.hpp
index cf9f65a..98efb49 100644
--- a/src/crepe/ComponentManager.hpp
+++ b/src/crepe/ComponentManager.hpp
@@ -3,11 +3,12 @@
 #include <type_traits>
 
 #include "ComponentManager.h"
+#include "types.h"
 
 namespace crepe {
 
 template <class T, typename... Args>
-T & ComponentManager::add_component(uint32_t id, Args &&... args) {
+T & ComponentManager::add_component(game_object_id_t id, Args &&... args) {
 	using namespace std;
 
 	static_assert(is_base_of<Component, T>::value,
@@ -51,7 +52,7 @@ T & ComponentManager::add_component(uint32_t id, Args &&... args) {
 }
 
 template <typename T>
-void ComponentManager::delete_components_by_id(uint32_t id) {
+void ComponentManager::delete_components_by_id(game_object_id_t id) {
 	using namespace std;
 
 	// Determine the type of T (this is used as the key of the unordered_map<>)
@@ -83,7 +84,7 @@ void ComponentManager::delete_components() {
 
 template <typename T>
 std::vector<std::reference_wrapper<T>>
-ComponentManager::get_components_by_id(uint32_t id) const {
+ComponentManager::get_components_by_id(game_object_id_t id) const {
 	using namespace std;
 
 	// Determine the type of T (this is used as the key of the unordered_map<>)
diff --git a/src/crepe/api/CircleCollider.h b/src/crepe/api/CircleCollider.h
index 931b012..caa7e43 100644
--- a/src/crepe/api/CircleCollider.h
+++ b/src/crepe/api/CircleCollider.h
@@ -5,7 +5,7 @@ namespace crepe {
 
 class CircleCollider : public Collider {
 public:
-	CircleCollider(uint32_t game_object_id, int radius)
+	CircleCollider(game_object_id_t game_object_id, int radius)
 		: Collider(game_object_id), radius(radius) {}
 	int radius;
 };
diff --git a/src/crepe/api/Force.cpp b/src/crepe/api/Force.cpp
index 3c33ad3..63131ac 100644
--- a/src/crepe/api/Force.cpp
+++ b/src/crepe/api/Force.cpp
@@ -4,8 +4,7 @@
 
 namespace crepe {
 
-Force::Force(uint32_t game_object_id, uint32_t magnitude, uint32_t direction)
-	: Component(game_object_id) {
+Force::Force(game_object_id_t id, uint32_t magnitude, uint32_t direction) : Component(id) {
 	// TODO: A standard angle unit should be established for the entire engine
 	// and assumed to be the default everywhere. Only conversion functions should
 	// explicitly contain the unit (i.e. `deg_to_rad()` & `rad_to_deg()`)
diff --git a/src/crepe/api/Force.h b/src/crepe/api/Force.h
index c08a8b9..4a4b5de 100644
--- a/src/crepe/api/Force.h
+++ b/src/crepe/api/Force.h
@@ -8,7 +8,7 @@ namespace crepe {
 
 class Force : public Component {
 public:
-	Force(uint32_t game_object_id, uint32_t magnitude, uint32_t direction);
+	Force(game_object_id_t id, uint32_t magnitude, uint32_t direction);
 
 	int32_t force_x;
 	int32_t force_y;
diff --git a/src/crepe/api/GameObject.cpp b/src/crepe/api/GameObject.cpp
index b1b8f85..e009288 100644
--- a/src/crepe/api/GameObject.cpp
+++ b/src/crepe/api/GameObject.cpp
@@ -6,7 +6,7 @@
 using namespace crepe;
 using namespace std;
 
-GameObject::GameObject(uint32_t id, const std::string & name,
+GameObject::GameObject(game_object_id_t id, const std::string & name,
 					   const std::string & tag, const Point & position,
 					   double rotation, double scale)
 	: ID(id) {
diff --git a/src/crepe/api/GameObject.h b/src/crepe/api/GameObject.h
index 2992787..223d72e 100644
--- a/src/crepe/api/GameObject.h
+++ b/src/crepe/api/GameObject.h
@@ -3,6 +3,8 @@
 #include <cstdint>
 #include <string>
 
+#include "types.h"
+
 namespace crepe {
 
 class Point;
@@ -27,7 +29,7 @@ public:
 	 * \param rotation The rotation of the GameObject
 	 * \param scale The scale of the GameObject
 	 */
-	GameObject(uint32_t id, const std::string & name, const std::string & tag,
+	GameObject(game_object_id_t id, const std::string & name, const std::string & tag,
 			   const Point & position, double rotation, double scale);
 	/**
 	 * \brief Set the parent of this GameObject
@@ -55,7 +57,7 @@ public:
 
 public:
 	//! The id of the GameObject
-	const uint32_t ID;
+	const game_object_id_t ID;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/Metadata.cpp b/src/crepe/api/Metadata.cpp
index 55d9ae2..ab9612b 100644
--- a/src/crepe/api/Metadata.cpp
+++ b/src/crepe/api/Metadata.cpp
@@ -3,6 +3,5 @@
 using namespace crepe;
 using namespace std;
 
-Metadata::Metadata(uint32_t game_object_id, const string & name,
-				   const string & tag)
-	: Component(game_object_id), NAME(name), TAG(tag) {}
+Metadata::Metadata(game_object_id_t id, const string & name, const string & tag)
+	: Component(id), NAME(name), TAG(tag) {}
diff --git a/src/crepe/api/Metadata.h b/src/crepe/api/Metadata.h
index fdbed41..f5e5c55 100644
--- a/src/crepe/api/Metadata.h
+++ b/src/crepe/api/Metadata.h
@@ -20,7 +20,7 @@ public:
 	 * \param name The name of the GameObject
 	 * \param tag The tag of the GameObject
 	 */
-	Metadata(uint32_t game_object_id, const std::string & name,
+	Metadata(game_object_id_t id, const std::string & name,
 			 const std::string & tag);
 	/**
 	 * \brief Get the maximum number of instances for this component
@@ -35,9 +35,9 @@ public:
 	//! The tag of the GameObject
 	const std::string TAG;
 	//! The id of the parent GameObject (-1 if no parent)
-	uint32_t parent = -1;
+	game_object_id_t parent = -1;
 	//! The ids of the children GameObjects
-	std::vector<uint32_t> children;
+	std::vector<game_object_id_t> children;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index 0b3a9ee..6094732 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -6,12 +6,12 @@
 
 using namespace crepe;
 
-ParticleEmitter::ParticleEmitter(uint32_t game_object_id,
+ParticleEmitter::ParticleEmitter(game_object_id_t id,
 								 uint32_t max_particles, uint32_t emission_rate,
 								 uint32_t speed, uint32_t speed_offset,
 								 uint32_t angle, uint32_t angleOffset,
 								 float begin_lifespan, float end_lifespan)
-	: Component(game_object_id), max_particles(max_particles),
+	: Component(id), max_particles(max_particles),
 	  emission_rate(emission_rate), speed(speed), speed_offset(speed_offset),
 	  position{0, 0}, begin_lifespan(begin_lifespan),
 	  end_lifespan(end_lifespan) {
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index 2e2e95b..5939723 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -10,7 +10,7 @@ namespace crepe {
 
 class ParticleEmitter : public Component {
 public:
-	ParticleEmitter(uint32_t game_object_id, uint32_t max_particles,
+	ParticleEmitter(game_object_id_t id, uint32_t max_particles,
 					uint32_t emission_rate, uint32_t speed,
 					uint32_t speed_offset, uint32_t angle, uint32_t angleOffset,
 					float begin_lifespan, float end_lifespan);
diff --git a/src/crepe/api/Rigidbody.cpp b/src/crepe/api/Rigidbody.cpp
index 0a6262a..1e76346 100644
--- a/src/crepe/api/Rigidbody.cpp
+++ b/src/crepe/api/Rigidbody.cpp
@@ -2,7 +2,7 @@
 
 using namespace crepe;
 
-Rigidbody::Rigidbody(uint32_t game_object_id, int mass, int gravity_scale,
+Rigidbody::Rigidbody(game_object_id_t id, int mass, int gravity_scale,
 					 BodyType bodyType)
-	: Component(game_object_id), mass(mass), gravity_scale(gravity_scale),
+	: Component(id), mass(mass), gravity_scale(gravity_scale),
 	  body_type(bodyType) {}
diff --git a/src/crepe/api/Rigidbody.h b/src/crepe/api/Rigidbody.h
index 518ed94..02ced2e 100644
--- a/src/crepe/api/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -18,8 +18,7 @@ enum class BodyType {
 
 class Rigidbody : public Component {
 public:
-	Rigidbody(uint32_t game_object_id, int mass, int gravity_scale,
-			  BodyType body_type);
+	Rigidbody(game_object_id_t id, int mass, int gravity_scale, BodyType body_type);
 	int32_t velocity_x;
 	int32_t velocity_y;
 	int mass;
diff --git a/src/crepe/api/Sprite.cpp b/src/crepe/api/Sprite.cpp
index 3dd44f2..7e810b5 100644
--- a/src/crepe/api/Sprite.cpp
+++ b/src/crepe/api/Sprite.cpp
@@ -10,7 +10,7 @@
 using namespace std;
 using namespace crepe;
 
-Sprite::Sprite(uint32_t id, shared_ptr<Texture> image, const Color & color,
+Sprite::Sprite(game_object_id_t id, shared_ptr<Texture> image, const Color & color,
 			   const FlipSettings & flip)
 	: Component(id), color(color), flip(flip), sprite_image(image) {
 	dbg_trace();
diff --git a/src/crepe/api/Sprite.h b/src/crepe/api/Sprite.h
index bdb4da9..28078cd 100644
--- a/src/crepe/api/Sprite.h
+++ b/src/crepe/api/Sprite.h
@@ -19,8 +19,7 @@ struct FlipSettings {
 class Sprite : public Component {
 
 public:
-	Sprite(uint32_t game_id, std::shared_ptr<Texture> image,
-		   const Color & color, const FlipSettings & flip);
+	Sprite(game_object_id_t id, std::shared_ptr<Texture> image, const Color & color, const FlipSettings & flip);
 	~Sprite();
 	std::shared_ptr<Texture> sprite_image;
 	Color color;
diff --git a/src/crepe/api/Transform.cpp b/src/crepe/api/Transform.cpp
index be1769e..5fb66b3 100644
--- a/src/crepe/api/Transform.cpp
+++ b/src/crepe/api/Transform.cpp
@@ -6,8 +6,8 @@
 
 using namespace crepe;
 
-Transform::Transform(uint32_t game_id, const Point & point, double rot,
+Transform::Transform(game_object_id_t id, const Point & point, double rot,
 					 double scale)
-	: Component(game_id), position(point), rotation(rot), scale(scale) {
+	: Component(id), position(point), rotation(rot), scale(scale) {
 	dbg_trace();
 }
diff --git a/src/crepe/api/Transform.h b/src/crepe/api/Transform.h
index 69ea48f..1104e99 100644
--- a/src/crepe/api/Transform.h
+++ b/src/crepe/api/Transform.h
@@ -1,7 +1,5 @@
 #pragma once
 
-#include <cstdint>
-
 #include "api/Point.h"
 
 #include "Component.h"
@@ -22,7 +20,7 @@ public:
 	 * \param rot The rotation of the GameObject
 	 * \param scale The scale of the GameObject
 	 */
-	Transform(uint32_t id, const Point & point, double rot, double scale);
+	Transform(game_object_id_t id, const Point & point, double rot, double scale);
 	/**
 	 * \brief Get the maximum number of instances for this component
 	 *
diff --git a/src/crepe/types.h b/src/crepe/types.h
new file mode 100644
index 0000000..5ae2c81
--- /dev/null
+++ b/src/crepe/types.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#include <cstdint>
+
+namespace crepe {
+
+typedef uint32_t game_object_id_t;
+
+}
+