22 files changed, 1623 insertions, 58 deletions

diff --git a/asset/texture/green_square.png b/asset/texture/green_square.png
new file mode 100755
index 0000000..7772c87
--- /dev/null
+++ b/asset/texture/green_square.png
diff --git a/asset/texture/red_square.png b/asset/texture/red_square.png
new file mode 100755
index 0000000..6ffbbec
--- /dev/null
+++ b/asset/texture/red_square.png
diff --git a/src/crepe/Collider.cpp b/src/crepe/Collider.cpp
index bbec488..9d94152 100644
--- a/src/crepe/Collider.cpp
+++ b/src/crepe/Collider.cpp
@@ -2,4 +2,4 @@
 
 using namespace crepe;
 
-Collider::Collider(game_object_id_t id) : Component(id) {}
+Collider::Collider(game_object_id_t id, const vec2& offset) : Component(id), offset(offset) {}
diff --git a/src/crepe/Collider.h b/src/crepe/Collider.h
index 827f83d..f5f53d2 100644
--- a/src/crepe/Collider.h
+++ b/src/crepe/Collider.h
@@ -1,14 +1,33 @@
 #pragma once
 
 #include "Component.h"
+#include "types.h"
 
 namespace crepe {
 
 class Collider : public Component {
 public:
-	Collider(game_object_id_t id);
+	Collider(game_object_id_t id, const vec2& offset);
 
-	int size;
+public:
+	/**
+	* \brief Offset of the collider relative to the rigidbody position.
+	*
+	* The `offset` defines the positional shift applied to the collider relative to the position of the rigidbody it is attached to.
+	* This allows the collider to be placed at a different position than the rigidbody, which can be useful for scenarios
+	* where the collider's position needs to differ from the rigidbody's center, such as in non-centered colliders.
+	* 
+	* - The `offset` is typically used when the collider is not meant to be centered exactly on the rigidbody's position.
+	* - For example, the collider might need to be shifted to account for an object with an asymmetrical shape or for objects
+	*   where the pivot point of the rigidbody is different from the collider's center.
+	* 
+	* When multiple colliders are added to the same object (e.g., a character with separate body parts or a vehicle with multiple zones),
+	* the offset is important for properly positioning each collider relative to the rigidbody, allowing accurate collision detection.
+	* 
+	* - Multiple colliders can be used on the same object, and each can have its own unique offset.
+	* - Overlap between colliders is allowed and does not impact performance.
+	*/
+	vec2 offset;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/BoxCollider.cpp b/src/crepe/api/BoxCollider.cpp
new file mode 100644
index 0000000..f94ced7
--- /dev/null
+++ b/src/crepe/api/BoxCollider.cpp
@@ -0,0 +1,7 @@
+#include "BoxCollider.h"
+
+#include "../Collider.h" 
+
+using namespace crepe;
+
+BoxCollider::BoxCollider(game_object_id_t game_object_id,const vec2& offset, const vec2& dimensions) : Collider(game_object_id,offset), dimensions(dimensions) {}
diff --git a/src/crepe/api/BoxCollider.h b/src/crepe/api/BoxCollider.h
new file mode 100644
index 0000000..1f5f1c1
--- /dev/null
+++ b/src/crepe/api/BoxCollider.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include "Vector2.h"
+#include "../Collider.h"
+#include "types.h"
+
+namespace crepe {
+
+/**
+ * \brief A class representing a box-shaped collider.
+ * 
+ * This class is used for collision detection with other colliders (e.g., CircleCollider).
+ */
+class BoxCollider : public Collider {
+public:
+	BoxCollider(game_object_id_t game_object_id,const vec2& offset, const vec2& dimensions);
+
+	//! Width and height of the box collider 
+	vec2 dimensions;
+};
+
+} // namespace crepe
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt
index 50c51ed..d8215b9 100644
--- a/src/crepe/api/CMakeLists.txt
+++ b/src/crepe/api/CMakeLists.txt
@@ -15,6 +15,8 @@ target_sources(crepe PUBLIC
 	SceneManager.cpp
 	Camera.cpp
 	Animator.cpp
+	BoxCollider.cpp
+	CircleCollider.cpp
 	EventManager.cpp
 	IKeyListener.cpp
 	IMouseListener.cpp
@@ -48,6 +50,8 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	SceneManager.hpp
 	Camera.h
 	Animator.h
+	BoxCollider.h
+	CircleCollider.h
 	EventManager.h
 	EventManager.hpp
 	EventHandler.h
diff --git a/src/crepe/api/CircleCollider.cpp b/src/crepe/api/CircleCollider.cpp
new file mode 100644
index 0000000..473734e
--- /dev/null
+++ b/src/crepe/api/CircleCollider.cpp
@@ -0,0 +1,6 @@
+#include "CircleCollider.h"
+
+using namespace crepe;
+
+
+CircleCollider::CircleCollider(game_object_id_t game_object_id,const vec2& offset, float radius) : Collider(game_object_id,offset), radius(radius) {}
diff --git a/src/crepe/api/CircleCollider.h b/src/crepe/api/CircleCollider.h
index e77a592..bbcc330 100644
--- a/src/crepe/api/CircleCollider.h
+++ b/src/crepe/api/CircleCollider.h
@@ -1,14 +1,23 @@
 #pragma once
+
+#include "Vector2.h"
+
 #include "../Collider.h"
 
 namespace crepe {
 
+/**
+ * \brief A class representing a circle-shaped collider.
+ * 
+ * This class is used for collision detection with other colliders (e.g., BoxCollider).
+ */
 class CircleCollider : public Collider {
 public:
-	CircleCollider(game_object_id_t game_object_id, int radius)
-		: Collider(game_object_id),
-		  radius(radius) {}
-	int radius;
+
+	CircleCollider(game_object_id_t game_object_id,const vec2& offset, float radius);
+
+	//! Radius of the circle collider.
+	float radius;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/Event.h b/src/crepe/api/Event.h
index b267e3e..259acba 100644
--- a/src/crepe/api/Event.h
+++ b/src/crepe/api/Event.h
@@ -3,6 +3,8 @@
 
 #include <string>
 
+#include "system/CollisionSystem.h"
+
 #include "KeyCodes.h"
 
 namespace crepe {
@@ -93,7 +95,12 @@ public:
 /**
  * \brief Event triggered during a collision between objects.
  */
-class CollisionEvent : public Event {};
+class CollisionEvent : public Event {
+public:
+	crepe::CollisionSystem::CollisionInfo info;
+	CollisionEvent(const crepe::CollisionSystem::CollisionInfo& collisionInfo)
+        : info(collisionInfo) {}
+};
 
 /**
  * \brief Event triggered when text is submitted, e.g., from a text input.
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
index 7edf4d1..feb1338 100644
--- a/src/crepe/api/LoopManager.cpp
+++ b/src/crepe/api/LoopManager.cpp
@@ -6,6 +6,8 @@
 #include "../system/PhysicsSystem.h"
 #include "../system/RenderSystem.h"
 #include "../system/ScriptSystem.h"
+#include "..//system/PhysicsSystem.h"
+#include "../system/CollisionSystem.h"
 
 #include "LoopManager.h"
 #include "LoopTimer.h"
@@ -32,7 +34,11 @@ void LoopManager::start() {
 }
 void LoopManager::set_running(bool running) { this->game_running = running; }
 
-void LoopManager::fixed_update() {}
+void LoopManager::fixed_update() {
+	this->get_system<ScriptSystem>().update();
+	this->get_system<PhysicsSystem>().update();
+	this->get_system<CollisionSystem>().update();
+}
 
 void LoopManager::loop() {
 	LoopTimer & timer = LoopTimer::get_instance();
@@ -58,6 +64,7 @@ void LoopManager::setup() {
 	this->game_running = true;
 	LoopTimer::get_instance().start();
 	LoopTimer::get_instance().set_fps(200);
+	this->scene_manager.load_next_scene();
 }
 
 void LoopManager::render() {
diff --git a/src/crepe/api/Rigidbody.cpp b/src/crepe/api/Rigidbody.cpp
index 576ca45..c4b1d6f 100644
--- a/src/crepe/api/Rigidbody.cpp
+++ b/src/crepe/api/Rigidbody.cpp
@@ -10,6 +10,6 @@ void crepe::Rigidbody::add_force_linear(const vec2 & force) {
 	this->data.linear_velocity += force;
 }
 
-void crepe::Rigidbody::add_force_angular(double force) {
+void crepe::Rigidbody::add_force_angular(float force) {
 	this->data.angular_velocity += force;
 }
diff --git a/src/crepe/api/Rigidbody.h b/src/crepe/api/Rigidbody.h
index 3b0588f..14b183b 100644
--- a/src/crepe/api/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cmath>
+
 #include "../Component.h"
 
 #include "types.h"
@@ -34,11 +36,11 @@ public:
 	 * the systems will not move the object.
 	 */
 	struct PhysicsConstraints {
-		//! X constraint
+		//! Prevent movement along X axis
 		bool x = false;
-		//! Y constraint
+		//! Prevent movement along Y axis
 		bool y = false;
-		//! rotation constraint
+		//! Prevent rotation
 		bool rotation = false;
 	};
 
@@ -50,29 +52,114 @@ public:
 	 */
 	struct Data {
 		//! objects mass
-		double mass = 0.0;
-		//! gravtiy scale
-		double gravity_scale = 0.0;
-		//! Changes if physics apply
+		float mass = 0.0;
+		/**
+		* \brief Gravity scale factor.
+		*
+		* The `gravity_scale` controls how much gravity affects the object. It is a multiplier applied to the default
+		* gravity force, allowing for fine-grained control over how the object responds to gravity.
+		* 
+		* - A value of `0.0` means that gravity has **no effect** on the object (i.e., the object is completely immune to gravity).
+		* - A value of `1.0` means that gravity is applied at its **normal intensity** (the default behavior).
+		* - A value greater than `1.0` means the object is affected by gravity more strongly than normal.
+		* - A value less than `1.0` (but greater than `0.0`) reduces the effect of gravity on the object.
+		* 
+		* This is useful in cases where you need objects to behave differently under gravity, such as lighter objects (like feathers),
+		* objects that float in water, or heavier objects that fall faster.
+		*/
+		float gravity_scale = 0;
+		/**
+		* \brief Defines the type of the physics body, which determines how the physics system interacts with the object.
+		*
+		* - **Static**: The object does not move and is not affected by forces. It is used for immovable objects like walls or terrain. Does not have collision detection.
+		* - **Dynamic**: The object is fully affected by physics forces, including gravity, collisions, and other physical interactions. It can move and be moved by forces.
+		* - **Kinematic**: The object does not move and is not affected by forces. It is typically controlled by external factors (e.g., animations or user input), and collision detection is handled without affecting its velocity.
+		*
+		* The `body_type` defines the behavior of the object in the physics system.
+		*
+		* \default BodyType::DYNAMIC
+		*/
 		BodyType body_type = BodyType::DYNAMIC;
-		//! linear velocity of object
+
+		/**
+		* \name Linear (positional) motion
+		*
+		* These variables define the linear motion (movement along the position) of an object.
+		* The linear velocity is applied to the object's position in each update of the PhysicsSystem.
+		* The motion is affected by the object's linear velocity, its maximum velocity, and a coefficient
+		* that can scale the velocity over time.
+		*
+		* \{
+		*/
+		//! Linear velocity of the object (speed and direction).
 		vec2 linear_velocity;
-		//! maximum linear velocity of object
-		vec2 max_linear_velocity;
-		//! linear damping of object
-		vec2 linear_damping;
-		//! angular velocity of object
-		double angular_velocity = 0.0;
-		//! max angular velocity of object
-		double max_angular_velocity = 0.0;
-		//! angular damping of object
-		double angular_damping = 0.0;
-		//! movements constraints of object
+		//! Maximum linear velocity of the object. This limits the object's speed.
+		vec2 max_linear_velocity = {INFINITY ,INFINITY};
+		//! Linear velocity coefficient. This scales the object's velocity for adjustment or damping.
+		vec2 linear_velocity_coefficient = {1,1};
+		//! \}
+
+		/**
+		* \name Angular (rotational) motion
+		*
+		* These variables define the angular motion (rotation) of an object.
+		* The angular velocity determines how quickly the object rotates, while the maximum angular velocity
+		* sets a limit on the rotation speed. The angular velocity coefficient applies damping or scaling
+		* to the angular velocity, which can be used to simulate friction or other effects that slow down rotation.
+		*
+		* \{
+		*/
+		//! Angular velocity of the object, representing the rate of rotation (in degrees).
+		float angular_velocity = 0;
+		//! Maximum angular velocity of the object. This limits the maximum rate of rotation.
+		float max_angular_velocity = INFINITY;
+		//! Angular velocity coefficient. This scales the object's angular velocity, typically used for damping.
+		float angular_velocity_coefficient = 1;
+		//! \}
+
+		/**
+		* \brief Movement constraints for an object.
+		*
+		* The `PhysicsConstraints` struct defines the constraints that restrict an object's movement
+		* in certain directions or prevent rotation. These constraints effect only the physics system
+		* to prevent the object from moving or rotating in specified ways.
+		* 
+		* - **X Constraint**: If enabled, the object cannot move along the X-axis.
+		* - **Y Constraint**: If enabled, the object cannot move along the Y-axis.
+		* - **Rotation Constraint**: If enabled, the object cannot rotate.
+		* 
+		* These constraints allow you to restrict movement for specific scenarios (e.g., a platform that shouldn't move
+		* or a character that should only move horizontally).
+		*/
 		PhysicsConstraints constraints;
-		//! if gravity applies
-		bool use_gravity = true;
-		//! if object bounces
-		bool bounce = false;
+
+		/**
+		* \brief Elasticity factor of the material (bounce factor).
+		*
+		* The `elasticity_coefficient` controls how much of the object's velocity is retained after a collision.
+		* It represents the material's ability to bounce or recover velocity upon impact. The coefficient is a value
+		* between 0.0 and 1.0, where:
+		*
+		* - **0.0** means no velocity is retained after the collision (all velocity is lost, and the object does not bounce).
+		* - **1.0** means the object retains its full velocity but in the opposite direction (perfect elastic bounce).
+		* - **0.5** means the object retains half of its velocity, resulting in a bounce with reduced speed.
+		*
+		* This factor can be used to simulate different materials, such as rubber (high elasticity) or concrete (low elasticity).
+		*/
+		float elastisity_coefficient = 0.0;
+
+		/**
+		* \brief Offset of all colliders relative to the object's transform position.
+		*
+		* The `offset` defines a positional shift applied to all colliders associated with the object, relative to the object's
+		* transform position. This allows for the colliders to be placed at a different position than the object's actual
+		* position, without modifying the object's transform itself.
+		* 
+		* - The `offset` is typically used to adjust the collider's position in cases where all colluders should be moved.
+		* - For example, if a character has a animation where all colliders should be moved this offset can be used to 
+		*		achieve this.
+		*/
+		vec2 offset;
 	};
 
 public:
@@ -96,7 +183,16 @@ public:
 	 * 
 	 * \param force Vector2 that is added to the angular force.
 	 */
-	void add_force_angular(double force);
+	void add_force_angular(float force);
+
+protected:
+	/**
+	* Ensures there is at most one Rigidbody component per entity.
+	* \return Always returns 1, indicating this constraint.
+	*/
+	virtual int get_instances_max() const { return 1; }
+	//! ComponentManager instantiates all components
+	friend class ComponentManager;
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/CollisionSystem.cpp b/src/crepe/system/CollisionSystem.cpp
index c74ca1d..2d5ce9d 100644
--- a/src/crepe/system/CollisionSystem.cpp
+++ b/src/crepe/system/CollisionSystem.cpp
@@ -1,5 +1,457 @@
+#include <cmath>
+#include <algorithm>
+#include <cstddef>
+#include <functional>
+#include <utility>
+#include <variant>
+#include <optional>
+
+#include "api/Event.h"
+#include "api/EventManager.h"
+#include "api/BoxCollider.h"
+#include "api/CircleCollider.h"
+#include "api/Metadata.h"
+#include "api/Vector2.h"
+#include "api/Rigidbody.h"
+#include "api/Transform.h"
+
+#include "ComponentManager.h"
 #include "CollisionSystem.h"
+#include "Collider.h"
+#include "types.h"
+#include "util/OptionalRef.h"
 
 using namespace crepe;
 
-void CollisionSystem::update() {}
+void CollisionSystem::update() {
+	std::vector<CollisionInternal> all_colliders;
+	game_object_id_t id = 0;
+	RefVector<Rigidbody> rigidbodies = this->component_manager.get_components_by_type<Rigidbody>();
+	// Collisions can only happen on object with a rigidbody
+	for(Rigidbody& rigidbody : rigidbodies) {
+		if (!rigidbody.active) continue;
+		id = rigidbody.game_object_id;
+		Transform& transform = this->component_manager.get_components_by_id<Transform>(id).front().get();
+		// Check if the boxcollider is active and has the same id as the rigidbody.
+		RefVector<BoxCollider> boxcolliders	= this->component_manager.get_components_by_type<BoxCollider>();
+		for (BoxCollider& boxcollider : boxcolliders) {
+			if(boxcollider.game_object_id != id) continue;
+			if(!boxcollider.active) continue;
+			all_colliders.push_back(
+				{
+					.id = id,
+				  .collider = collider_variant{boxcollider},
+					.transform = transform,
+					.rigidbody = rigidbody
+					}
+				);
+		}
+		// Check if the circlecollider is active and has the same id as the rigidbody.
+		RefVector<CircleCollider> circlecolliders	= this->component_manager.get_components_by_type<CircleCollider>();
+		for (CircleCollider& circlecollider : circlecolliders) {
+			if(circlecollider.game_object_id != id) continue;
+			if(!circlecollider.active) continue;
+			all_colliders.push_back(
+				{
+					.id = id,
+				  .collider = collider_variant{circlecollider},
+					.transform = transform,
+					.rigidbody = rigidbody
+					}
+				);
+		}
+	}
+
+	// Check between all colliders if there is a collision
+	std::vector<std::pair<CollisionInternal,CollisionInternal>> collided = this->gather_collisions(all_colliders);
+
+	// For both objects call the collision handler 
+	for (auto& collision_pair : collided) {
+		this->collision_handler_request(collision_pair.first,collision_pair.second);
+		this->collision_handler_request(collision_pair.second,collision_pair.first);
+	}
+}
+
+void CollisionSystem::collision_handler_request(CollisionInternal& this_data,CollisionInternal& other_data){
+
+	CollisionInternalType type = this->get_collider_type(this_data.collider,other_data.collider);
+	std::pair<vec2,CollisionSystem::Direction> resolution_data = this->collision_handler(this_data,other_data,type);
+
+	OptionalRef<Metadata> this_metadata = this->component_manager.get_components_by_id<Metadata>(this_data.id).front().get();
+	OptionalRef<Metadata> other_metadata = this->component_manager.get_components_by_id<Metadata>(other_data.id).front().get();
+	OptionalRef<Collider> this_collider;
+	OptionalRef<Collider> other_collider;
+	switch (type) {
+		case CollisionInternalType::BOX_BOX:{
+			this_collider = std::get<std::reference_wrapper<BoxCollider>>(this_data.collider);
+			other_collider = std::get<std::reference_wrapper<BoxCollider>>(other_data.collider);
+			break;
+		}
+		case CollisionInternalType::BOX_CIRCLE:{
+			this_collider = std::get<std::reference_wrapper<BoxCollider>>(this_data.collider);
+			other_collider = std::get<std::reference_wrapper<CircleCollider>>(other_data.collider);
+			break;
+		}
+		case CollisionInternalType::CIRCLE_BOX:{
+			this_collider = std::get<std::reference_wrapper<CircleCollider>>(this_data.collider);
+			other_collider = std::get<std::reference_wrapper<BoxCollider>>(other_data.collider);
+			break;
+		}
+		case CollisionInternalType::CIRCLE_CIRCLE:{
+			this_collider = std::get<std::reference_wrapper<CircleCollider>>(this_data.collider);
+			other_collider = std::get<std::reference_wrapper<CircleCollider>>(other_data.collider);
+			break;
+		}
+	}
+
+	// collision info
+	crepe::CollisionSystem::CollisionInfo collision_info{
+						.this_collider = this_collider,
+						.this_transform = this_data.transform,
+						.this_rigidbody = this_data.rigidbody,
+						.this_metadata = this_metadata,
+						.other_collider = other_collider,
+						.other_transform = other_data.transform,
+						.other_rigidbody = other_data.rigidbody,
+						.other_metadata = other_metadata,
+						.resolution = resolution_data.first,
+						.resolution_direction = resolution_data.second,
+        };
+
+	// Determine if static needs to be called
+	this->determine_collision_handler(collision_info);	
+}
+
+
+std::pair<vec2,CollisionSystem::Direction> CollisionSystem::collision_handler(CollisionInternal& data1,CollisionInternal& data2,CollisionInternalType type) {
+	vec2 resolution;
+	switch (type) {
+		case CollisionInternalType::BOX_BOX:	{
+			const BoxCollider & collider1 = std::get<std::reference_wrapper<BoxCollider>>(data1.collider);
+			const BoxCollider & collider2 = std::get<std::reference_wrapper<BoxCollider>>(data2.collider);
+			vec2 collider_pos1 = this->get_current_position(collider1.offset, data1.transform, data1.rigidbody);
+			vec2 collider_pos2 = this->get_current_position(collider2.offset, data2.transform, data2.rigidbody);
+			resolution = this->get_box_box_resolution(collider1,collider2,collider_pos1,collider_pos2);
+			break;
+		}
+		case CollisionInternalType::BOX_CIRCLE: {
+			const BoxCollider & collider1 = std::get<std::reference_wrapper<BoxCollider>>(data1.collider);
+			const CircleCollider & collider2 = std::get<std::reference_wrapper<CircleCollider>>(data2.collider);
+			vec2 collider_pos1 = this->get_current_position(collider1.offset, data1.transform, data1.rigidbody);
+			vec2 collider_pos2 = this->get_current_position(collider2.offset, data2.transform, data2.rigidbody);
+			resolution = this->get_circle_box_resolution(collider2,collider1,collider_pos2,collider_pos1);
+			break;
+		}
+		case CollisionInternalType::CIRCLE_CIRCLE:	{
+			const CircleCollider & collider1 = std::get<std::reference_wrapper<CircleCollider>>(data1.collider);
+			const CircleCollider & collider2 = std::get<std::reference_wrapper<CircleCollider>>(data2.collider);
+			vec2 collider_pos1 = this->get_current_position(collider1.offset, data1.transform, data1.rigidbody);
+			vec2 collider_pos2 = this->get_current_position(collider2.offset, data2.transform, data2.rigidbody);
+			resolution = this->get_circle_circle_resolution(collider1,collider2,collider_pos1,collider_pos2);
+			break;
+		}
+		case CollisionInternalType::CIRCLE_BOX:	{
+			const CircleCollider & collider1 = std::get<std::reference_wrapper<CircleCollider>>(data1.collider);
+			const BoxCollider & collider2 = std::get<std::reference_wrapper<BoxCollider>>(data2.collider);
+			vec2 collider_pos1 = this->get_current_position(collider1.offset, data1.transform, data1.rigidbody);
+			vec2 collider_pos2 = this->get_current_position(collider2.offset, data2.transform, data2.rigidbody);
+			resolution = this->get_circle_box_resolution(collider1,collider2,collider_pos1,collider_pos2);
+			break;
+		}
+	}
+
+	Direction resolution_direction = Direction::NONE;
+	if(resolution.x != 0 && resolution.y > 0) {
+		resolution_direction = Direction::BOTH;
+	} else if (resolution.x != 0) {
+		resolution_direction = Direction::X_DIRECTION;
+		if(data1.rigidbody.data.linear_velocity.y != 0)	
+		resolution.y = data1.rigidbody.data.linear_velocity.y * (resolution.x/data1.rigidbody.data.linear_velocity.x);
+	} else if (resolution.y != 0) {
+		resolution_direction = Direction::Y_DIRECTION;
+		if(data1.rigidbody.data.linear_velocity.x != 0) 
+		resolution.x = data1.rigidbody.data.linear_velocity.x * (resolution.y/data1.rigidbody.data.linear_velocity.y);
+	}
+
+	return std::make_pair(resolution,resolution_direction);
+}
+
+vec2 CollisionSystem::get_box_box_resolution(const BoxCollider& box_collider1,const BoxCollider& box_collider2,const vec2& final_position1,const vec2& final_position2) const
+{
+	vec2 resolution; // Default resolution vector
+	vec2 delta = final_position2 - final_position1;
+
+	// Compute half-dimensions of the boxes
+	float half_width1 = box_collider1.dimensions.x / 2.0;
+	float half_height1 = box_collider1.dimensions.y / 2.0;
+	float half_width2 = box_collider2.dimensions.x / 2.0;
+	float half_height2 = box_collider2.dimensions.y / 2.0;
+
+	// Calculate overlaps along X and Y axes
+	float overlap_x = (half_width1 + half_width2) - std::abs(delta.x);
+	float overlap_y = (half_height1 + half_height2) - std::abs(delta.y);
+
+	// Check if there is a collision should always be true
+	if (overlap_x > 0 && overlap_y > 0) {
+		// Determine the direction of resolution
+		if (overlap_x < overlap_y) {
+			// Resolve along the X-axis (smallest overlap)
+			resolution.x = (delta.x > 0) ? -overlap_x : overlap_x;
+		} else if (overlap_y < overlap_x) {
+			// Resolve along the Y-axis (smallest overlap)
+			resolution.y = (delta.y > 0) ? -overlap_y : overlap_y;
+		} else {
+			// Equal overlap, resolve both directions with preference
+			resolution.x = (delta.x > 0) ? -overlap_x : overlap_x;
+			resolution.y = (delta.y > 0) ? -overlap_y : overlap_y;
+		}
+	}
+
+	return resolution;
+}
+
+vec2 CollisionSystem::get_circle_circle_resolution(const CircleCollider& circle_collider1, const CircleCollider& circle_collider2, const vec2& final_position1, const vec2& final_position2) const 
+{
+    vec2 delta = final_position2 - final_position1;
+
+    // Compute the distance between the two circle centers
+    float distance = std::sqrt(delta.x * delta.x + delta.y * delta.y);
+
+    // Compute the combined radii of the two circles
+    float combined_radius = circle_collider1.radius + circle_collider2.radius;
+
+    // Compute the penetration depth
+    float penetration_depth = combined_radius - distance;
+
+    // Normalize the delta vector to get the collision direction
+    vec2 collision_normal = delta / distance;
+
+    // Compute the resolution vector
+    vec2 resolution = collision_normal * penetration_depth;
+
+    return resolution;
+}
+
+vec2 CollisionSystem::get_circle_box_resolution(const CircleCollider& circle_collider, const BoxCollider& box_collider, const vec2& circle_position, const vec2& box_position) const 
+{
+    vec2 delta = circle_position - box_position;
+
+    // Compute half-dimensions of the box
+    float half_width = box_collider.dimensions.x / 2.0f;
+    float half_height = box_collider.dimensions.y / 2.0f;
+
+    // Clamp circle center to the nearest point on the box
+    vec2 closest_point;
+    closest_point.x = std::clamp(delta.x, -half_width, half_width);
+    closest_point.y = std::clamp(delta.y, -half_height, half_height);
+
+    // Find the vector from the circle center to the closest point
+    vec2 closest_delta = delta - closest_point;
+
+    // Normalize the delta to get the collision direction
+    float distance = std::sqrt(closest_delta.x * closest_delta.x + closest_delta.y * closest_delta.y);
+    vec2 collision_normal = closest_delta / distance;
+
+    // Compute penetration depth
+    float penetration_depth = circle_collider.radius - distance;
+
+    // Compute the resolution vector
+    vec2 resolution = collision_normal * penetration_depth;
+
+    return resolution;
+}
+
+
+void CollisionSystem::determine_collision_handler(CollisionInfo& info){
+	// Check rigidbody type for static
+	if(info.this_rigidbody.data.body_type == Rigidbody::BodyType::STATIC) return;
+	// If second body is static perform the static collision handler in this system
+	if(info.other_rigidbody.data.body_type == Rigidbody::BodyType::STATIC){
+		static_collision_handler(info);
+	}; 
+	// Call collision event for user
+	CollisionEvent data(info);
+	EventManager::get_instance().trigger_event<CollisionEvent>(data, info.this_collider.game_object_id);
+}
+
+void CollisionSystem::static_collision_handler(CollisionInfo& info){
+	// Move object back using calculate move back value 
+	info.this_transform.position += info.resolution;
+
+	// If bounce is enabled mirror velocity
+	if(info.this_rigidbody.data.elastisity_coefficient > 0) {
+		if(info.resolution_direction == Direction::BOTH)
+		{
+			info.this_rigidbody.data.linear_velocity.y = -info.this_rigidbody.data.linear_velocity.y * info.this_rigidbody.data.elastisity_coefficient;
+			info.this_rigidbody.data.linear_velocity.x = -info.this_rigidbody.data.linear_velocity.x * info.this_rigidbody.data.elastisity_coefficient;
+		}
+		else if(info.resolution_direction == Direction::Y_DIRECTION) {
+			info.this_rigidbody.data.linear_velocity.y = -info.this_rigidbody.data.linear_velocity.y * info.this_rigidbody.data.elastisity_coefficient;
+		}
+		else if(info.resolution_direction == Direction::X_DIRECTION){
+			info.this_rigidbody.data.linear_velocity.x = -info.this_rigidbody.data.linear_velocity.x * info.this_rigidbody.data.elastisity_coefficient;
+		}
+	}
+	// Stop movement if bounce is disabled
+	else {
+		info.this_rigidbody.data.linear_velocity = {0,0};
+	}
+}
+
+std::vector<std::pair<CollisionSystem::CollisionInternal,CollisionSystem::CollisionInternal>> CollisionSystem::gather_collisions(std::vector<CollisionInternal> & colliders) {
+	
+	
+	// TODO:
+	// If no colliders skip
+	// Check if colliders has rigidbody if not skip
+
+	// TODO:
+	// If amount is higer than lets say 16 for now use quadtree otwerwise skip
+	// Quadtree code
+	// Quadtree is placed over the input vector
+
+	// Return data of collided colliders which are variants
+	std::vector<std::pair<CollisionInternal,CollisionInternal>> collisions_ret;
+	//using visit to visit the variant to access the active and id.  
+	for (size_t i = 0; i < colliders.size(); ++i) {
+		for (size_t j = i + 1; j < colliders.size(); ++j) {
+			if(colliders[i].id == colliders[j].id) continue;
+				CollisionInternalType type = get_collider_type(colliders[i].collider,colliders[j].collider);
+				if(!get_collision({
+					.collider = colliders[i].collider,
+					.transform = colliders[i].transform,
+					.rigidbody = colliders[i].rigidbody,
+					},
+					{
+					.collider = colliders[j].collider,
+					.transform = colliders[j].transform,
+					.rigidbody = colliders[j].rigidbody,
+					},
+					type)) continue;
+				collisions_ret.emplace_back(colliders[i],colliders[j]);
+		}
+	}
+	
+	return collisions_ret;
+}
+
+CollisionSystem::CollisionInternalType CollisionSystem::get_collider_type(const collider_variant& collider1,const collider_variant& collider2) const{
+	if(std::holds_alternative<std::reference_wrapper<CircleCollider>>(collider1)){
+		if(std::holds_alternative<std::reference_wrapper<CircleCollider>>(collider2))
+		{
+			return CollisionInternalType::CIRCLE_CIRCLE;
+		}
+		else {
+			return CollisionInternalType::CIRCLE_BOX;
+		}
+	}
+	else {
+		if(std::holds_alternative<std::reference_wrapper<CircleCollider>>(collider2))
+		{
+			return CollisionInternalType::BOX_CIRCLE;
+		}
+		else {
+			return CollisionInternalType::BOX_BOX;
+		}
+	}
+}
+
+bool CollisionSystem::get_collision(const CollisionInternal& first_info,const CollisionInternal& second_info, CollisionInternalType type) const{
+	switch (type) {
+		case CollisionInternalType::BOX_BOX:	{
+			const BoxCollider & box_collider1 = std::get<std::reference_wrapper<BoxCollider>>(first_info.collider);
+			const BoxCollider & box_collider2 = std::get<std::reference_wrapper<BoxCollider>>(second_info.collider);
+			return this->get_box_box_collision(box_collider1,box_collider2,first_info.transform,second_info.transform,second_info.rigidbody,second_info.rigidbody);
+		}
+		case CollisionInternalType::BOX_CIRCLE: {
+			const BoxCollider & box_collider = std::get<std::reference_wrapper<BoxCollider>>(first_info.collider);
+			const CircleCollider & circle_collider = std::get<std::reference_wrapper<CircleCollider>>(second_info.collider);
+			return this->get_box_circle_collision(box_collider,circle_collider,first_info.transform,second_info.transform,second_info.rigidbody,second_info.rigidbody);
+		}
+		case CollisionInternalType::CIRCLE_CIRCLE:	{
+			const CircleCollider & circle_collider1 = std::get<std::reference_wrapper<CircleCollider>>(first_info.collider);
+			const CircleCollider & circle_collider2 = std::get<std::reference_wrapper<CircleCollider>>(second_info.collider);
+			return this->get_circle_circle_collision(circle_collider1,circle_collider2,first_info.transform,second_info.transform,second_info.rigidbody,second_info.rigidbody);
+		}
+		case CollisionInternalType::CIRCLE_BOX:	{
+			const CircleCollider & circle_collider = std::get<std::reference_wrapper<CircleCollider>>(first_info.collider);
+			const BoxCollider & box_collider = std::get<std::reference_wrapper<BoxCollider>>(second_info.collider);
+			return this->get_box_circle_collision(box_collider,circle_collider,first_info.transform,second_info.transform,second_info.rigidbody,second_info.rigidbody);
+		}
+	}
+	return false;
+}
+
+
+bool CollisionSystem::get_box_box_collision(const BoxCollider& box1, const BoxCollider& box2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const
+{
+	// Get current positions of colliders
+	vec2 final_position1 = this->get_current_position(box1.offset,transform1,rigidbody1);
+	vec2 final_position2 = this->get_current_position(box2.offset,transform2,rigidbody2);
+
+	// Calculate half-extents (half width and half height)
+	float half_width1 = box1.dimensions.x / 2.0;
+	float half_height1 = box1.dimensions.y / 2.0;
+	float half_width2 = box2.dimensions.x / 2.0;
+	float half_height2 = box2.dimensions.y / 2.0;
+
+	// Check if the boxes overlap along the X and Y axes
+	return (final_position1.x + half_width1 > final_position2.x - half_width2 &&
+        final_position1.x - half_width1 < final_position2.x + half_width2 &&
+        final_position1.y + half_height1 > final_position2.y - half_height2 &&
+        final_position1.y - half_height1 < final_position2.y + half_height2);
+}
+
+bool CollisionSystem::get_box_circle_collision(const BoxCollider& box1, const CircleCollider& circle2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const {
+	// Get current positions of colliders
+	vec2 final_position1 = this->get_current_position(box1.offset, transform1, rigidbody1);
+	vec2 final_position2 = this->get_current_position(circle2.offset, transform2, rigidbody2);
+
+	// Calculate box half-extents
+	float half_width = box1.dimensions.x / 2.0;
+	float half_height = box1.dimensions.y / 2.0;
+
+	// Find the closest point on the box to the circle's center
+	float closest_x = std::max(final_position1.x - half_width, std::min(final_position2.x, final_position1.x + half_width));
+	float closest_y = std::max(final_position1.y - half_height, std::min(final_position2.y, final_position1.y + half_height));
+
+	// Calculate the distance squared between the circle's center and the closest point on the box
+	float distance_x = final_position2.x - closest_x;
+	float distance_y = final_position2.y - closest_y;
+	float distance_squared = distance_x * distance_x + distance_y * distance_y;
+
+	// Compare distance squared with the square of the circle's radius
+	return distance_squared <= circle2.radius * circle2.radius;
+}
+
+bool CollisionSystem::get_circle_circle_collision(const CircleCollider& circle1, const CircleCollider& circle2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const {
+	// Get current positions of colliders
+	vec2 final_position1 = this->get_current_position(circle1.offset,transform1,rigidbody1);
+	vec2 final_position2 = this->get_current_position(circle2.offset,transform2,rigidbody2);
+
+	float distance_x = final_position1.x - final_position2.x;
+	float distance_y = final_position1.y - final_position2.y;
+	float distance_squared = distance_x * distance_x + distance_y * distance_y;
+
+	// Calculate the sum of the radii
+	float radius_sum = circle1.radius + circle2.radius;
+
+	// Check if the distance between the centers is less than or equal to the sum of the radii
+	return distance_squared <= radius_sum * radius_sum;
+}
+
+vec2 CollisionSystem::get_current_position(const vec2& collider_offset, const Transform& transform, const Rigidbody& rigidbody) const {
+	// Get the rotation in radians
+	float radians1 = transform.rotation * (M_PI / 180.0);
+
+	// Calculate total offset with scale
+	vec2 total_offset = (rigidbody.data.offset + collider_offset) * transform.scale;
+
+	// Rotate
+	float rotated_total_offset_x1 = total_offset.x * cos(radians1) - total_offset.y * sin(radians1);
+	float rotated_total_offset_y1 = total_offset.x * sin(radians1) + total_offset.y * cos(radians1);
+
+	// Final positions considering scaling and rotation
+	return(transform.position + vec2(rotated_total_offset_x1, rotated_total_offset_y1));
+
+}
diff --git a/src/crepe/system/CollisionSystem.h b/src/crepe/system/CollisionSystem.h
index c1a70d8..85ae5ad 100644
--- a/src/crepe/system/CollisionSystem.h
+++ b/src/crepe/system/CollisionSystem.h
@@ -1,13 +1,261 @@
 #pragma once
 
+#include <vector>
+#include <variant>
+#include <optional>
+
+#include "api/Rigidbody.h"
+#include "api/Transform.h"
+#include "api/BoxCollider.h"
+#include "api/CircleCollider.h"
+#include "api/Metadata.h"
+#include "api/Vector2.h"
+
+#include "Collider.h"
 #include "System.h"
 
+
 namespace crepe {
 
+
+//! A system responsible for detecting and handling collisions between colliders.
 class CollisionSystem : public System {
 public:
 	using System::System;
+private:
+	
+	//! A variant type that can hold either a BoxCollider or a CircleCollider.
+	using collider_variant = std::variant<std::reference_wrapper<BoxCollider>, std::reference_wrapper<CircleCollider>>;
+
+	//! Enum representing the types of collider pairs for collision detection.
+	enum class CollisionInternalType {
+    BOX_BOX,
+    CIRCLE_CIRCLE,
+    BOX_CIRCLE,
+    CIRCLE_BOX,
+	};
+
+	/**
+		* \brief A structure to store the collision data of a single collider.
+		* 
+		* This structure all components and id that are for needed within this system when calculating or handeling collisions.
+		* The transform and rigidbody are mostly needed for location and rotation.
+		* In rigidbody additional info is written about what the body of the object is,
+		* and how it should respond on a collision.
+		*/
+	struct CollisionInternal {
+		game_object_id_t id = 0;
+		collider_variant collider; 
+		Transform& transform;
+		Rigidbody& rigidbody;
+	};
+	
+	//! Enum representing movement directions during collision resolution.
+	enum class Direction {
+		//! No movement required.
+    NONE,
+		//! Movement in the X direction.
+    X_DIRECTION,
+		//! Movement in the Y direction.
+    Y_DIRECTION,
+		//! Movement in both X and Y directions.
+    BOTH
+	};
+
+public:
+	/**
+		* \brief Structure representing detailed collision information between two colliders.
+		* 
+		* Includes information about the colliding objects and the resolution data for handling the collision.
+		*/
+	struct CollisionInfo{
+    Collider& this_collider;
+		Transform& this_transform;
+		Rigidbody& this_rigidbody;
+		Metadata& this_metadata;
+    Collider& other_collider;
+		Transform& other_transform;
+		Rigidbody& other_rigidbody;
+		Metadata& other_metadata;
+		//! The resolution vector for the collision.
+		vec2 resolution;
+		//! The direction of movement for resolving the collision.
+		Direction resolution_direction = Direction::NONE;
+	};
+
+public:
+
+	//! Updates the collision system by checking for collisions between colliders and handling them.
 	void update() override;
+private:
+
+	/**
+		* \brief Determines the type of collider pair from two colliders.
+		* 
+		* Uses std::holds_alternative to identify the types of the provided colliders.
+		* 
+		* \param collider1 First collider variant (BoxCollider or CircleCollider).
+		* \param collider2 Second collider variant (BoxCollider or CircleCollider).
+		* \return The combined type of the two colliders.
+		*/
+	CollisionInternalType get_collider_type(const collider_variant& collider1,const collider_variant& collider2) const;
+
+	/**
+		* \brief Calculates the current position of a collider.
+		* 
+		* Combines the Collider offset, Transform position, and Rigidbody offset to compute the position of the collider.
+		* 
+		* \param collider_offset The offset of the collider.
+		* \param transform The Transform of the associated game object.
+		* \param rigidbody The Rigidbody of the associated game object.
+		* \return The calculated position of the collider.
+		*/
+	vec2 get_current_position(const vec2& collider_offset, const Transform& transform, const Rigidbody& rigidbody) const;
+
+private:
+
+	/**
+		* \brief Handles collision resolution between two colliders.
+		* 
+		* Processes collision data and adjusts objects to resolve collisions and/or calls the user oncollision script function.
+		* 
+		* \param data1 Collision data for the first collider.
+		* \param data2 Collision data for the second collider.
+		*/
+	void collision_handler_request(CollisionInternal& data1,CollisionInternal& data2);
+
+	/**
+		* \brief Resolves collision between two colliders and calculates the movement required.
+		* 
+		* Determines the displacement and direction needed to separate colliders based on their types.
+		* 
+		* \param data1 Collision data for the first collider.
+		* \param data2 Collision data for the second collider.
+		* \param type The type of collider pair.
+		* \return A pair containing the resolution vector and direction for the first collider.
+		*/
+	std::pair<vec2,Direction> collision_handler(CollisionInternal& data1,CollisionInternal& data2 ,CollisionInternalType type);
+
+	/**
+		* \brief Calculates the resolution vector for two BoxColliders.
+		* 
+		* Computes the displacement required to separate two overlapping BoxColliders.
+		* 
+		* \param box_collider1 The first BoxCollider.
+		* \param box_collider2 The second BoxCollider.
+		* \param position1 The position of the first BoxCollider.
+		* \param position2 The position of the second BoxCollider.
+		* \return The resolution vector for the collision.
+		*/
+	vec2 get_box_box_resolution(const BoxCollider& box_collider1,const BoxCollider& box_collider2,const vec2& position1,const vec2& position2) const;
+
+	/**
+		* \brief Calculates the resolution vector for two CircleCollider.
+		* 
+		* Computes the displacement required to separate two overlapping CircleCollider.
+		* 
+		* \param circle_collider1 The first CircleCollider.
+		* \param circle_collider2 The second CircleCollider.
+		* \param position1 The position of the first CircleCollider.
+		* \param position2 The position of the second CircleCollider.
+		* \return The resolution vector for the collision.
+		*/
+	vec2 get_circle_circle_resolution(const CircleCollider& circle_collider1, const CircleCollider& circle_collider2, const vec2& final_position1, const vec2& final_position2) const;
+
+	/**
+		* \brief Calculates the resolution vector for two CircleCollider.
+		* 
+		* Computes the displacement required to separate two overlapping CircleCollider.
+		* 
+		* \param circle_collider The first CircleCollider.
+		* \param box_collider The second CircleCollider.
+		* \param circle_position The position of the CircleCollider.
+		* \param box_position The position of the BocCollider.
+		* \return The resolution vector for the collision.
+		*/
+	vec2 get_circle_box_resolution(const CircleCollider& circle_collider, const BoxCollider& box_collider, const vec2& circle_position, const vec2& box_position) const;
+
+	/**
+		* \brief Determines the appropriate collision handler for a collision.
+		* 
+		* Decides the correct resolution process based on the dynamic or static nature of the colliders involved.
+		* 
+		* \param info Collision information containing data about both colliders.
+		*/
+	void determine_collision_handler(CollisionInfo& info);
+
+	/**
+		* \brief Handles collisions involving static objects.
+		* 
+		* Resolves collisions by adjusting positions and modifying velocities if bounce is enabled.
+		* 
+		* \param info Collision information containing data about both colliders.
+		*/
+	void static_collision_handler(CollisionInfo& info);
+private:
+	
+	/**
+		* \brief Checks for collisions between colliders.
+		* 
+		* Identifies collisions and generates pairs of colliding objects for further processing.
+		* 
+		* \param colliders A collection of all active colliders.
+		* \return A list of collision pairs with their associated data.
+		*/
+	std::vector<std::pair<CollisionInternal,CollisionInternal>> gather_collisions(std::vector<CollisionInternal> & colliders);
+
+	/**
+		* \brief Checks for collision between two colliders.
+		* 
+		* Calls the appropriate collision detection function based on the collider types.
+		* 
+		* \param first_info Collision data for the first collider.
+		* \param second_info Collision data for the second collider.
+		* \param type The type of collider pair.
+		* \return True if a collision is detected, otherwise false.
+		*/
+	bool get_collision(const CollisionInternal& first_info,const CollisionInternal& second_info, CollisionInternalType type) const;
+	
+	/**
+		* \brief Detects collisions between two BoxColliders.
+		* 
+		* \param box1 The first BoxCollider.
+		* \param box2 The second BoxCollider.
+		* \param transform1 Transform of the first object.
+		* \param transform2 Transform of the second object.
+		* \param rigidbody1 Rigidbody of the first object.
+		* \param rigidbody2 Rigidbody of the second object.
+		* \return True if a collision is detected, otherwise false.
+		*/
+	bool get_box_box_collision(const BoxCollider& box1, const BoxCollider& box2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const;
+	
+	/**
+	 * \brief Check collision for box on circle collider
+	 *
+	 * \param box1 The BoxCollider
+	 * \param circle2 The CircleCollider
+	 * \param transform1 Transform of the first object.
+	 * \param transform2 Transform of the second object.
+	 * \param rigidbody1 Rigidbody of the first object.
+	 * \param rigidbody2 Rigidbody of the second object.
+	 * \return True if a collision is detected, otherwise false.
+	 */
+	bool get_box_circle_collision(const BoxCollider& box1, const CircleCollider& circle2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const;
+
+	/**
+	 * \brief Check collision for circle on circle collider
+	 *
+	 * \param circle1 First CircleCollider
+	 * \param circle2 Second CircleCollider
+	 * \param transform1 Transform of the first object.
+	 * \param transform2 Transform of the second object.
+	 * \param rigidbody1 Rigidbody of the first object.
+	 * \param rigidbody2 Rigidbody of the second object.
+	 * \return True if a collision is detected, otherwise false.
+	 *
+	 * \return status of collision
+	 */
+	bool get_circle_circle_collision(const CircleCollider& circle1, const CircleCollider& circle2, const Transform& transform1, const Transform& transform2, const Rigidbody& rigidbody1, const Rigidbody& rigidbody2) const;
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/PhysicsSystem.cpp b/src/crepe/system/PhysicsSystem.cpp
index 514a4b3..b5da042 100644
--- a/src/crepe/system/PhysicsSystem.cpp
+++ b/src/crepe/system/PhysicsSystem.cpp
@@ -25,17 +25,17 @@ void PhysicsSystem::update() {
 					if (transform.game_object_id == rigidbody.game_object_id) {
 
 						// Add gravity
-						if (rigidbody.data.use_gravity) {
+						if (rigidbody.data.gravity_scale > 0) {
 							rigidbody.data.linear_velocity.y
 								+= (rigidbody.data.mass * rigidbody.data.gravity_scale
 									* gravity);
 						}
 						// Add damping
-						if (rigidbody.data.angular_damping != 0) {
-							rigidbody.data.angular_velocity *= rigidbody.data.angular_damping;
+						if (rigidbody.data.angular_velocity_coefficient > 0) {
+							rigidbody.data.angular_velocity *= rigidbody.data.angular_velocity_coefficient;
 						}
-						if (rigidbody.data.linear_damping != vec2{0, 0}) {
-							rigidbody.data.linear_velocity *= rigidbody.data.linear_damping;
+						if (rigidbody.data.linear_velocity_coefficient.x > 0 && rigidbody.data.linear_velocity_coefficient.y > 0) {
+							rigidbody.data.linear_velocity *= rigidbody.data.linear_velocity_coefficient;
 						}
 
 						// Max velocity check
diff --git a/src/example/CMakeLists.txt b/src/example/CMakeLists.txt
index 560e2bc..3ec5e43 100644
--- a/src/example/CMakeLists.txt
+++ b/src/example/CMakeLists.txt
@@ -20,4 +20,5 @@ add_example(asset_manager)
 add_example(savemgr)
 add_example(rendering_particle)
 add_example(gameloop)
+add_example(game)
 
diff --git a/src/example/game.cpp b/src/example/game.cpp
new file mode 100644
index 0000000..5e3fab7
--- /dev/null
+++ b/src/example/game.cpp
@@ -0,0 +1,86 @@
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Transform.h>
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/BoxCollider.h>
+#include <crepe/api/Camera.h>
+#include <crepe/api/Script.h>
+#include <crepe/api/Color.h>
+#include <crepe/api/Sprite.h>
+#include <crepe/api/Texture.h>
+#include <crepe/api/Vector2.h>
+#include <crepe/api/Event.h>
+#include <crepe/api/EventManager.h>
+#include <crepe/api/LoopManager.h>
+
+using namespace crepe;
+
+using namespace std;
+
+class MyScript : public Script {
+	bool oncollision(const CollisionEvent& test) {
+		Log::logf("Box {} script on_collision()", test.info.this_collider.game_object_id);
+		return true;
+	}
+	void init() {
+		subscribe<CollisionEvent>([this](const CollisionEvent& ev) -> bool {
+			return this->oncollision(ev);
+		});
+	}
+	void update() {
+		// Retrieve component from the same GameObject this script is on
+	}
+};
+
+
+class ConcreteScene1 : public Scene {
+public:
+	using Scene::Scene;
+
+	void load_scene() {
+	ComponentManager & mgr = this->component_manager;
+	Color color(0, 0, 0, 0);
+
+	float screen_size_width = 640;
+	float screen_size_height = 480;
+	float world_collider = 1000;
+	//define playable world 
+	GameObject world = mgr.new_object("Name", "Tag", vec2{screen_size_width/2, screen_size_height/2}, 0, 1);
+	world.add_component<Rigidbody>(Rigidbody::Data{
+		.mass = 0,
+		.gravity_scale = 0,
+		.body_type = Rigidbody::BodyType::STATIC,
+		.constraints = {0, 0, 0},
+		.offset = {0,0}
+	});
+	world.add_component<BoxCollider>(vec2{0, 0-(screen_size_height/2+world_collider/2)}, vec2{world_collider, world_collider});;	// Top
+	world.add_component<BoxCollider>(vec2{0, screen_size_height/2+world_collider/2}, vec2{world_collider, world_collider}); // Bottom
+	world.add_component<BoxCollider>(vec2{0-(screen_size_width/2+world_collider/2), 0}, vec2{world_collider, world_collider}); // Left
+	world.add_component<BoxCollider>(vec2{screen_size_width/2+world_collider/2, 0}, vec2{world_collider, world_collider}); // right
+	world.add_component<Camera>(Color::WHITE, ivec2{640, 480},vec2{640, 480}, 1.0f);
+
+	GameObject game_object1 = mgr.new_object("Name", "Tag", vec2{screen_size_width/2, screen_size_height/2}, 0, 1);
+	game_object1.add_component<Rigidbody>(Rigidbody::Data{
+		.mass = 1,
+		.gravity_scale = 0.01,
+		.body_type = Rigidbody::BodyType::DYNAMIC,
+		.linear_velocity = {1,1},
+		.constraints = {0, 0, 0},
+		.elastisity_coefficient = 1,
+		.offset = {0,0},
+	});
+	game_object1.add_component<BoxCollider>(vec2{0, 0}, vec2{20, 20});
+	game_object1.add_component<BehaviorScript>().set_script<MyScript>();
+	auto img = Texture("asset/texture/green_square.png");
+	game_object1.add_component<Sprite>(img, color, Sprite::FlipSettings{false, false}, 1, 1, 500);
+	}
+
+	string get_name() const { return "scene1"; }
+};
+
+int main(int argc, char * argv[]) {
+
+	LoopManager gameloop;
+	gameloop.add_scene<ConcreteScene1>();
+	gameloop.start();
+	return 0;
+}
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index d310f6a..616e238 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -1,15 +1,17 @@
 target_sources(test_main PUBLIC
+	CollisionTest.cpp
 	main.cpp
-	PhysicsTest.cpp
-	ScriptTest.cpp
-	ParticleTest.cpp
-	AssetTest.cpp
-	OptionalRefTest.cpp
-	RenderSystemTest.cpp
-	EventTest.cpp
-	ECSTest.cpp
-	SceneManagerTest.cpp
-	ValueBrokerTest.cpp
-	DBTest.cpp
-	Vector2Test.cpp
+	# PhysicsTest.cpp
+	# ScriptTest.cpp
+	# ParticleTest.cpp
+	# AssetTest.cpp
+	# OptionalRefTest.cpp
+	# RenderSystemTest.cpp
+	# EventTest.cpp
+	# ECSTest.cpp
+	# SceneManagerTest.cpp
+	# ValueBrokerTest.cpp
+	# DBTest.cpp
+	# Vector2Test.cpp
+	# Profiling.cpp
 )
diff --git a/src/test/CollisionTest.cpp b/src/test/CollisionTest.cpp
new file mode 100644
index 0000000..fec42f3
--- /dev/null
+++ b/src/test/CollisionTest.cpp
@@ -0,0 +1,377 @@
+#include "api/BoxCollider.h"
+#include <cmath>
+#include <cstddef>
+#include <gtest/gtest.h>
+
+#define private public
+#define protected public
+
+#include <crepe/ComponentManager.h>
+#include <crepe/api/Event.h>
+#include <crepe/api/EventManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Script.h>
+#include <crepe/api/Transform.h>
+#include <crepe/system/CollisionSystem.h>
+#include <crepe/system/ScriptSystem.h>
+#include <crepe/types.h>
+#include <crepe/util/Log.h>
+
+using namespace std;
+using namespace std::chrono_literals;
+using namespace crepe;
+using namespace testing;
+
+class CollisionHandler : public Script {
+public:
+	int box_id;
+	function<void(const CollisionEvent& ev)> test_fn = [](const CollisionEvent & ev) { };
+
+	CollisionHandler(int box_id) {
+		this->box_id = box_id;
+	}
+
+	bool on_collision(const CollisionEvent& ev) {
+		//Log::logf("Box {} script on_collision()", box_id);
+		test_fn(ev);
+		return true;
+	}
+
+	void init() {
+		subscribe<CollisionEvent>([this](const CollisionEvent& ev) -> bool {
+			return this->on_collision(ev);
+		});
+	}
+	void update() {
+		// Retrieve component from the same GameObject this script is on
+	}
+};
+
+class CollisionTest : public Test {
+public:
+	ComponentManager mgr;
+	CollisionSystem collision_sys{mgr};
+	ScriptSystem script_sys{mgr};
+
+	GameObject world = mgr.new_object("world","",{50,50});
+	GameObject game_object1 = mgr.new_object("object1", "", { 50, 50});
+	GameObject game_object2 = mgr.new_object("object2", "", { 50, 30});
+
+	CollisionHandler * script_object1_ref = nullptr;
+	CollisionHandler * script_object2_ref = nullptr;
+	
+	void SetUp() override {
+		world.add_component<Rigidbody>(Rigidbody::Data{
+			// TODO: remove unrelated properties:
+			.body_type = Rigidbody::BodyType::STATIC,
+			.offset = {0,0},
+		});
+		// Create a box with an inner size of 10x10 units
+		world.add_component<BoxCollider>(vec2{0, -100}, vec2{100, 100}); // Top
+		world.add_component<BoxCollider>(vec2{0, 100}, vec2{100, 100}); // Bottom
+		world.add_component<BoxCollider>(vec2{-100, 0}, vec2{100, 100}); // Left
+		world.add_component<BoxCollider>(vec2{100, 0}, vec2{100, 100}); // right
+
+		game_object1.add_component<Rigidbody>(Rigidbody::Data{
+			.mass = 1,
+			.gravity_scale = 0.01,
+			.body_type = Rigidbody::BodyType::DYNAMIC,
+			.linear_velocity = {0,0},
+			.constraints = {0, 0, 0},
+			.elastisity_coefficient = 1,
+			.offset = {0,0},
+		});
+		game_object1.add_component<BoxCollider>(vec2{0, 0}, vec2{10, 10});
+		BehaviorScript & script_object1 = game_object1.add_component<BehaviorScript>().set_script<CollisionHandler>(1);
+		script_object1_ref = static_cast<CollisionHandler*>(script_object1.script.get());
+		ASSERT_NE(script_object1_ref, nullptr);
+		
+		game_object2.add_component<Rigidbody>(Rigidbody::Data{
+			.mass = 1,
+			.gravity_scale = 0.01,
+			.body_type = Rigidbody::BodyType::DYNAMIC,
+			.linear_velocity = {0,0},
+			.constraints = {0, 0, 0},
+			.elastisity_coefficient = 1,
+			.offset = {0,0},
+		});
+		game_object2.add_component<BoxCollider>(vec2{0, 0}, vec2{10, 10});
+		BehaviorScript & script_object2 = game_object2.add_component<BehaviorScript>().set_script<CollisionHandler>(2);
+		script_object2_ref = static_cast<CollisionHandler*>(script_object2.script.get());
+		ASSERT_NE(script_object2_ref, nullptr);
+
+		// Ensure Script::init() is called on all BehaviorScript instances
+		script_sys.update();
+	}
+};
+
+TEST_F(CollisionTest, collision_example) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+	};
+	EXPECT_FALSE(collision_happend);
+	collision_sys.update();
+	EXPECT_FALSE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_both_no_velocity) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, 10);
+		EXPECT_EQ(ev.info.resolution.y, 10);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::BOTH);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 10);
+		EXPECT_EQ(ev.info.resolution.y, 10);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::BOTH);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,30};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_x_direction_no_velocity) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, -5);
+		EXPECT_EQ(ev.info.resolution.y, 0);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::X_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 5);
+		EXPECT_EQ(ev.info.resolution.y, 0);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::X_DIRECTION);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {45,30};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_y_direction_no_velocity) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, 0);
+		EXPECT_EQ(ev.info.resolution.y, -5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::Y_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 0);
+		EXPECT_EQ(ev.info.resolution.y, 5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::Y_DIRECTION);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,25};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_both) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, 10);
+		EXPECT_EQ(ev.info.resolution.y, 10);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::BOTH);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 10);
+		EXPECT_EQ(ev.info.resolution.y, 10);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::BOTH);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,30};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.linear_velocity = {10,10};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_x_direction) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, -5);
+		EXPECT_EQ(ev.info.resolution.y, -5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::X_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 5);
+		EXPECT_EQ(ev.info.resolution.y, 5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::X_DIRECTION);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {45,30};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.linear_velocity = {10,10};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_dynamic_y_direction) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, -5);
+		EXPECT_EQ(ev.info.resolution.y, -5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::Y_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 2);
+		EXPECT_EQ(ev.info.resolution.x, 5);
+		EXPECT_EQ(ev.info.resolution.y, 5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::Y_DIRECTION);
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,25};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.linear_velocity = {10,10};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+
+TEST_F(CollisionTest, collision_box_box_static_both) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, 10);
+		EXPECT_EQ(ev.info.resolution.y, 10);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::BOTH);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		// is static should not be called
+		FAIL();
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,30};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.body_type = crepe::Rigidbody::BodyType::STATIC;
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_static_x_direction) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, -5);
+		EXPECT_EQ(ev.info.resolution.y, -5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::X_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		// is static should not be called
+		FAIL();
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {45,30};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.body_type = crepe::Rigidbody::BodyType::STATIC;
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_static_y_direction) {
+	bool collision_happend = false;
+	script_object1_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.resolution.x, -5);
+		EXPECT_EQ(ev.info.resolution.y, -5);
+		EXPECT_EQ(ev.info.resolution_direction, crepe::CollisionSystem::Direction::Y_DIRECTION);
+	};
+	script_object2_ref->test_fn = [&collision_happend](const CollisionEvent & ev) {
+		// is static should not be called
+		FAIL();
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {50,25};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.body_type = crepe::Rigidbody::BodyType::STATIC;
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
+
+TEST_F(CollisionTest, collision_box_box_static_multiple) {//todo check visually
+	bool collision_happend = false;
+	float offset_value = 0;
+	float resolution = 0;
+	script_object1_ref->test_fn = [&](const CollisionEvent & ev) {
+		collision_happend = true;
+		EXPECT_EQ(ev.info.this_collider.game_object_id, 1);
+		EXPECT_EQ(ev.info.this_collider.offset.x , offset_value);
+		EXPECT_EQ(ev.info.resolution.x , resolution);
+	};
+	script_object2_ref->test_fn = [&](const CollisionEvent & ev) {
+		// is static should not be called
+		FAIL();
+	};
+	EXPECT_FALSE(collision_happend);
+	Transform & tf = this->mgr.get_components_by_id<Transform>(1).front().get();
+	tf.position = {45,30};
+	Rigidbody & rg1 = this->mgr.get_components_by_id<Rigidbody>(1).front().get();
+	rg1.data.linear_velocity = {10,10};
+	Rigidbody & rg2 = this->mgr.get_components_by_id<Rigidbody>(2).front().get();
+	rg2.data.body_type = crepe::Rigidbody::BodyType::STATIC;
+	BoxCollider & bxc = this->mgr.get_components_by_id<BoxCollider>(1).front().get();
+	bxc.offset = {5,0};
+	this->game_object1.add_component<BoxCollider>(vec2{-5, 0}, vec2{10, 10});
+	offset_value = 5;
+	resolution = 10;
+	collision_sys.update();
+	offset_value = -5;
+	resolution = 10;
+	tf.position = {55,30};
+	collision_sys.update();
+	EXPECT_TRUE(collision_happend);
+}
diff --git a/src/test/PhysicsTest.cpp b/src/test/PhysicsTest.cpp
index 33b6020..ad7cb03 100644
--- a/src/test/PhysicsTest.cpp
+++ b/src/test/PhysicsTest.cpp
@@ -28,8 +28,6 @@ public:
 				.max_linear_velocity = vec2{10, 10},
 				.max_angular_velocity = 10,
 				.constraints = {0, 0},
-				.use_gravity = true,
-				.bounce = false,
 			});
 		}
 		transforms = mgr.get_components_by_id<Transform>(0);
@@ -105,16 +103,16 @@ TEST_F(PhysicsTest, movement) {
 	EXPECT_EQ(transform.position.y, 1);
 	EXPECT_EQ(transform.rotation, 1);
 
-	rigidbody.data.linear_damping.x = 0.5;
-	rigidbody.data.linear_damping.y = 0.5;
-	rigidbody.data.angular_damping = 0.5;
+	rigidbody.data.linear_velocity_coefficient.x = 0.5;
+	rigidbody.data.linear_velocity_coefficient.y = 0.5;
+	rigidbody.data.angular_velocity_coefficient = 0.5;
 	system.update();
 	EXPECT_EQ(rigidbody.data.linear_velocity.x, 0.5);
 	EXPECT_EQ(rigidbody.data.linear_velocity.y, 0.5);
 	EXPECT_EQ(rigidbody.data.angular_velocity, 0.5);
 
 	rigidbody.data.constraints = {1, 1, 0};
-	rigidbody.data.angular_damping = 0;
+	rigidbody.data.angular_velocity_coefficient = 0;
 	rigidbody.data.max_angular_velocity = 1000;
 	rigidbody.data.angular_velocity = 360;
 	system.update();
diff --git a/src/test/Profiling.cpp b/src/test/Profiling.cpp
new file mode 100644
index 0000000..fa0f5f3
--- /dev/null
+++ b/src/test/Profiling.cpp
@@ -0,0 +1,224 @@
+#include "system/ParticleSystem.h"
+#include "system/PhysicsSystem.h"
+#include "system/RenderSystem.h"
+#include <cmath>
+#include <chrono>
+#include <gtest/gtest.h>
+
+#define private public
+#define protected public
+
+#include <crepe/ComponentManager.h>
+#include <crepe/api/Event.h>
+#include <crepe/api/EventManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Script.h>
+#include <crepe/api/Transform.h>
+#include <crepe/api/ParticleEmitter.h>
+#include <crepe/system/CollisionSystem.h>
+#include <crepe/system/ScriptSystem.h>
+#include <crepe/types.h>
+#include <crepe/util/Log.h>
+
+using namespace std;
+using namespace std::chrono_literals;
+using namespace crepe;
+using namespace testing;
+
+class TestScript : public Script {
+	bool oncollision(const CollisionEvent& test) {
+		Log::logf("Box {} script on_collision()", test.info.this_collider.game_object_id);
+		return true;
+	}
+	void init() {
+		subscribe<CollisionEvent>([this](const CollisionEvent& ev) -> bool {
+			return this->oncollision(ev);
+		});
+	}
+	void update() {
+		// Retrieve component from the same GameObject this script is on
+	}
+};
+
+class Profiling : public Test {
+public:
+	// Config for test
+	// Minimum amount to let test pass
+	const int min_gameobject_count = 100;
+	// Maximum amount to stop test
+	const int max_gameobject_count = 150;
+	// Amount of times a test runs to calculate average
+	const int average = 5;
+	// Maximum duration to stop test
+	const std::chrono::microseconds duration = 16000us;
+	
+
+	ComponentManager mgr;
+	// Add system used for profling tests 
+	CollisionSystem collision_sys{mgr};
+	PhysicsSystem physics_sys{mgr};
+	ParticleSystem particle_sys{mgr};
+	RenderSystem render_sys{mgr};
+	ScriptSystem script_sys{mgr};
+
+	// Test data
+	std::map<std::string, std::chrono::microseconds> timings;
+	int game_object_count = 0;
+	std::chrono::microseconds total_time = 0us;
+
+	
+	void SetUp() override {
+		
+		GameObject do_not_use = mgr.new_object("DO_NOT_USE","",{0,0});
+		do_not_use.add_component<Camera>(Color::WHITE, ivec2{1080, 720},
+												   vec2{2000, 2000}, 1.0f);
+		// initialize systems here:
+		//calls init
+		script_sys.update();
+		//creates window
+		render_sys.update();
+	}
+
+	// Helper function to time an update call and store its duration
+	template <typename Func>
+	std::chrono::microseconds time_function(const std::string& name, Func&& func) {
+		auto start = std::chrono::steady_clock::now();
+		func();
+		auto end = std::chrono::steady_clock::now();
+		std::chrono::microseconds duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
+		timings[name] += duration;
+		return duration;
+	}
+
+	// Run and profile all systems, return the total time in milliseconds
+	std::chrono::microseconds run_all_systems() {
+		std::chrono::microseconds total_microseconds = 0us;
+		total_microseconds += time_function("PhysicsSystem", [&]() { physics_sys.update(); });
+		total_microseconds += time_function("CollisionSystem", [&]() { collision_sys.update(); });
+		total_microseconds += time_function("ParticleSystem", [&]() { particle_sys.update(); });
+		total_microseconds += time_function("RenderSystem", [&]() { render_sys.update(); });
+		return total_microseconds;
+	}
+
+	// Print timings of all functions
+	void log_timings() const {
+		std::string result = "\nFunction timings:\n";
+    
+    for (const auto& [name, duration] : timings) {
+        result += name + " took " + std::to_string(duration.count() / 1000.0 / average) + " ms (" +
+                  std::to_string(duration.count() / average) + " µs).\n";
+    }
+
+    result += "Total time: " + std::to_string(this->total_time.count() / 1000.0 / average) + " ms (" +
+              std::to_string(this->total_time.count() / average) + " µs)\n";
+    
+    result += "Amount of gameobjects: " + std::to_string(game_object_count) + "\n";
+
+    GTEST_LOG_(INFO) << result;
+	}
+
+	void clear_timings() {
+		for (auto& [key, value] : timings) {
+    	value = std::chrono::microseconds(0);
+		}
+	}
+};
+
+TEST_F(Profiling, Profiling_1) {
+	while (this->total_time/this->average < this->duration) {
+		
+
+		{
+			//define gameobject used for testing
+			GameObject gameobject = mgr.new_object("gameobject","",{0,0});
+		}
+
+		this->game_object_count++;
+
+		this->total_time = 0us;
+		clear_timings();
+
+		for (int amount = 0; amount < this->average; amount++) {
+			this->total_time += run_all_systems();
+		}
+
+		if(this->game_object_count >= this->max_gameobject_count) break;
+	}
+	log_timings();
+	EXPECT_GE(this->game_object_count, this->min_gameobject_count);
+}
+
+TEST_F(Profiling, Profiling_2) {
+	while (this->total_time/this->average < this->duration) {
+	
+		{
+			//define gameobject used for testing
+			GameObject gameobject = mgr.new_object("gameobject","",{static_cast<float>(game_object_count*2),0});
+			gameobject.add_component<Rigidbody>(Rigidbody::Data{
+				.gravity_scale = 0.0,
+				.body_type = Rigidbody::BodyType::STATIC,
+			});
+			gameobject.add_component<BoxCollider>(vec2{0, 0}, 1, 1);
+			gameobject.add_component<BehaviorScript>().set_script<TestScript>();
+			Color color(0, 0, 0, 0);
+			auto img = Texture("asset/texture/green_square.png");
+			Sprite & test_sprite = gameobject.add_component<Sprite>(img, color, Sprite::FlipSettings{false, false}, 1, 1, 500);
+		}
+
+		this->game_object_count++;
+
+		this->total_time = 0us;
+		clear_timings();
+		for (int amount = 0; amount < this->average; amount++) {
+			this->total_time += run_all_systems();
+		}
+
+		if(this->game_object_count >= this->max_gameobject_count) break;
+	}
+	log_timings();
+	EXPECT_GE(this->game_object_count, this->min_gameobject_count);
+}
+
+TEST_F(Profiling, Profiling_3) {
+	while (this->total_time/this->average < this->duration) {
+	
+		{
+			//define gameobject used for testing
+			GameObject gameobject = mgr.new_object("gameobject","",{static_cast<float>(game_object_count*2),0});
+			gameobject.add_component<Rigidbody>(Rigidbody::Data{
+			.gravity_scale = 0,
+			.body_type = Rigidbody::BodyType::STATIC,
+			});
+			gameobject.add_component<BoxCollider>(vec2{0, 0}, 1, 1);
+			gameobject.add_component<BehaviorScript>().set_script<TestScript>();
+			Color color(0, 0, 0, 0);
+			auto img = Texture("asset/texture/green_square.png");
+			Sprite & test_sprite = gameobject.add_component<Sprite>(img, color, Sprite::FlipSettings{false, false}, 1, 1, 500);
+			auto & test = gameobject.add_component<ParticleEmitter>(ParticleEmitter::Data{
+			.max_particles = 10,
+			.emission_rate = 100,
+			.end_lifespan = 100000,
+			.boundary{
+				.width = 1000,
+				.height = 1000,
+				.offset = vec2{0, 0},
+				.reset_on_exit = false,
+			},
+			.sprite = test_sprite,
+	});
+		}
+		render_sys.update();
+		this->game_object_count++;
+		
+		this->total_time = 0us;
+		clear_timings();
+		for (int amount = 0; amount < this->average; amount++) {
+			this->total_time += run_all_systems();
+		}
+
+		if(this->game_object_count >= this->max_gameobject_count) break;
+	}
+	log_timings();
+	EXPECT_GE(this->game_object_count, this->min_gameobject_count);
+}