merge master

24 files changed, 695 insertions, 466 deletions

diff --git a/src/crepe/Particle.cpp b/src/crepe/Particle.cpp
index 485a0d4..b340826 100644
--- a/src/crepe/Particle.cpp
+++ b/src/crepe/Particle.cpp
@@ -2,8 +2,8 @@
 
 using namespace crepe;
 
-void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velocity,
-					 double angle) {
+void Particle::reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity,
+					 float angle) {
 	// Initialize the particle state
 	this->time_in_life = 0;
 	this->lifespan = lifespan;
@@ -15,16 +15,17 @@ void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velo
 	this->force_over_time = {0, 0};
 }
 
-void Particle::update() {
+void Particle::update(double dt) {
 	// Deactivate particle if it has exceeded its lifespan
-	if (++time_in_life >= lifespan) {
+	time_in_life += dt;
+	if (time_in_life >= lifespan) {
 		this->active = false;
 		return;
 	}
 
 	// Update velocity based on accumulated force and update position
-	this->velocity += force_over_time;
-	this->position += velocity;
+	this->velocity += force_over_time * dt;
+	this->position += velocity * dt;
 }
 
 void Particle::stop_movement() {
diff --git a/src/crepe/Particle.h b/src/crepe/Particle.h
index d0397c9..ee0cd66 100644
--- a/src/crepe/Particle.h
+++ b/src/crepe/Particle.h
@@ -14,8 +14,6 @@ namespace crepe {
  * can also be reset or stopped.
  */
 class Particle {
-	// TODO: add friend particleSsytem and rendersystem. Unit test will fail.
-
 public:
 	//! Position of the particle in 2D space.
 	vec2 position;
@@ -24,13 +22,13 @@ public:
 	//! Accumulated force affecting the particle over time.
 	vec2 force_over_time;
 	//! Total lifespan of the particle in milliseconds.
-	uint32_t lifespan;
+	float lifespan;
 	//! Active state of the particle; true if it is in use, false otherwise.
 	bool active = false;
 	//! The time the particle has been alive, in milliseconds.
-	uint32_t time_in_life = 0;
+	float time_in_life = 0;
 	//! The angle at which the particle is oriented or moving.
-	double angle = 0;
+	float angle = 0;
 
 	/**
 	 * \brief Resets the particle with new properties.
@@ -43,14 +41,16 @@ 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, const vec2 & position, const vec2 & velocity, double angle);
+	void reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity,
+			   float angle);
 	/**
 	 * \brief Updates the particle's state.
 	 *
 	 * Advances the particle's position based on its velocity and applies accumulated forces.
 	 * Deactivates the particle if its lifespan has expired.
+	 * \param dt The amount of fixed delta time that has passed.
 	 */
-	void update();
+	void update(double dt);
 	/**
 	 * \brief Stops the particle's movement.
 	 *
diff --git a/src/crepe/api/BoxCollider.cpp b/src/crepe/api/BoxCollider.cpp
index c097a24..a893d41 100644
--- a/src/crepe/api/BoxCollider.cpp
+++ b/src/crepe/api/BoxCollider.cpp
@@ -4,7 +4,7 @@
 
 using namespace crepe;
 
-BoxCollider::BoxCollider(game_object_id_t game_object_id, const vec2 & offset,
-						 const vec2 & dimensions)
+BoxCollider::BoxCollider(game_object_id_t game_object_id, const vec2 & dimensions,
+						 const vec2 & offset)
 	: Collider(game_object_id, offset),
 	  dimensions(dimensions) {}
diff --git a/src/crepe/api/BoxCollider.h b/src/crepe/api/BoxCollider.h
index 1ac4d46..d643e7f 100644
--- a/src/crepe/api/BoxCollider.h
+++ b/src/crepe/api/BoxCollider.h
@@ -13,7 +13,8 @@ namespace crepe {
  */
 class BoxCollider : public Collider {
 public:
-	BoxCollider(game_object_id_t game_object_id, const vec2 & offset, const vec2 & dimensions);
+	BoxCollider(game_object_id_t game_object_id, const vec2 & dimensions,
+				const vec2 & offset = {0, 0});
 
 	//! Width and height of the box collider
 	vec2 dimensions;
diff --git a/src/crepe/api/Button.cpp b/src/crepe/api/Button.cpp
index 76f74f0..305922c 100644
--- a/src/crepe/api/Button.cpp
+++ b/src/crepe/api/Button.cpp
@@ -3,9 +3,8 @@
 namespace crepe {
 
 Button::Button(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
-			   const std::function<void()> & on_click, bool is_toggle)
+			   const std::function<void()> & on_click)
 	: UIObject(id, dimensions, offset),
-	  is_toggle(is_toggle),
 	  on_click(on_click) {}
 
 } // namespace crepe
diff --git a/src/crepe/api/Button.h b/src/crepe/api/Button.h
index 61b18d7..08f5dec 100644
--- a/src/crepe/api/Button.h
+++ b/src/crepe/api/Button.h
@@ -15,19 +15,11 @@ public:
 	 * \param id The unique ID of the game object associated with this button.
 	 * \param dimensions The width and height of the UIObject
 	 * \param offset The offset relative this GameObjects Transform
-	 * \param is_toggle Optional flag to indicate if the button is a toggle button. Defaults to false.
 	 * \param on_click callback function that will be invoked when the button is clicked.
 	 */
 	Button(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
-		   const std::function<void()> & on_click, bool is_toggle = false);
+		   const std::function<void()> & on_click);
 
-	/**
-	 * \brief Indicates if the button is a toggle button (can be pressed and released).
-	 *
-	 * A toggle button allows for a pressed/released state, whereas a regular button
-	 * typically only has an on-click state.
-	 */
-	bool is_toggle = false;
 	// TODO: create separate toggle button class
 	/**
 	 * \brief The callback function to be executed when the button is clicked.
@@ -56,8 +48,6 @@ public:
 private:
 	//! friend relation for is_pressed and hover variables
 	friend class InputSystem;
-	//! Indicates whether the toggle button is pressed
-	bool is_pressed = false;
 	//! Indicates whether the mouse is currently hovering over the button
 	bool hover = false;
 
diff --git a/src/crepe/api/CircleCollider.cpp b/src/crepe/api/CircleCollider.cpp
index a4271e9..90ab5e7 100644
--- a/src/crepe/api/CircleCollider.cpp
+++ b/src/crepe/api/CircleCollider.cpp
@@ -2,7 +2,7 @@
 
 using namespace crepe;
 
-CircleCollider::CircleCollider(game_object_id_t game_object_id, const vec2 & offset,
-							   float radius)
+CircleCollider::CircleCollider(game_object_id_t game_object_id, float radius,
+							   const vec2 & offset)
 	: Collider(game_object_id, offset),
 	  radius(radius) {}
diff --git a/src/crepe/api/CircleCollider.h b/src/crepe/api/CircleCollider.h
index c7bf66e..22da836 100644
--- a/src/crepe/api/CircleCollider.h
+++ b/src/crepe/api/CircleCollider.h
@@ -13,7 +13,8 @@ namespace crepe {
  */
 class CircleCollider : public Collider {
 public:
-	CircleCollider(game_object_id_t game_object_id, const vec2 & offset, float radius);
+	CircleCollider(game_object_id_t game_object_id, float radius,
+				   const vec2 & offset = {0, 0});
 
 	//! Radius of the circle collider.
 	float radius;
diff --git a/src/crepe/api/Config.h b/src/crepe/api/Config.h
index ca2d3f1..ed1cf38 100644
--- a/src/crepe/api/Config.h
+++ b/src/crepe/api/Config.h
@@ -76,6 +76,11 @@ struct Config final {
 		 */
 		std::string root_pattern = ".crepe-root";
 	} asset;
+	//! Configuration for click tolerance.
+	struct {
+		//! The maximum number of pixels the mouse can move between MouseDown and MouseUp events to be considered a click.
+		int click_tolerance = 5;
+	} input;
 
 	//! Audio system settings
 	struct {
diff --git a/src/crepe/api/Event.h b/src/crepe/api/Event.h
index f2f3daf..73bf461 100644
--- a/src/crepe/api/Event.h
+++ b/src/crepe/api/Event.h
@@ -3,7 +3,8 @@
 
 #include <string>
 
-#include "KeyCodes.h"
+#include "api/KeyCodes.h"
+#include "types.h"
 
 namespace crepe {
 
@@ -38,11 +39,8 @@ public:
  */
 class MousePressEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was pressed.
 	MouseButton button = MouseButton::NONE;
@@ -53,11 +51,8 @@ public:
  */
 class MouseClickEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was clicked.
 	MouseButton button = MouseButton::NONE;
@@ -68,11 +63,8 @@ public:
  */
 class MouseReleaseEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was released.
 	MouseButton button = MouseButton::NONE;
@@ -83,17 +75,10 @@ public:
  */
 class MouseMoveEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
-
-	// Movement since last event in x
-	int delta_x = 0;
-
-	// Movement since last event in y
-	int delta_y = 0;
+	//! mouse position in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
+	//! The change in mouse position relative to the last position (in pixels).
+	ivec2 mouse_delta = {0, 0};
 };
 
 /**
@@ -101,12 +86,8 @@ public:
  */
 class MouseScrollEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
-
+	//! mouse position in world coordinates (game units) when the scroll happened.
+	vec2 mouse_pos = {0, 0};
 	//! scroll direction (-1 = down, 1 = up)
 	int scroll_direction = 0;
 	//! scroll amount in y axis (from and away from the person).
@@ -127,4 +108,55 @@ public:
  */
 class ShutDownEvent : public Event {};
 
+/**
+ * \brief Event triggered to indicate the window is overlapped by another window.
+ * 
+ * When two windows overlap the bottom window gets distorted and that window has to be redrawn.
+ */
+class WindowExposeEvent : public Event {};
+
+/**
+ * \brief Event triggered to indicate the window is resized.
+ */
+class WindowResizeEvent : public Event {
+public:
+	//! new window dimensions
+	ivec2 dimensions = {0, 0};
+};
+
+/**
+ * \brief Event triggered to indicate the window is moved.
+ */
+class WindowMoveEvent : public Event {
+public:
+	//! The change in position relative to the last position (in pixels).
+	ivec2 delta_move = {0, 0};
+};
+
+/**
+ * \brief Event triggered to indicate the window is minimized.
+ */
+class WindowMinimizeEvent : public Event {};
+
+/**
+ * \brief Event triggered to indicate the window is maximized
+ */
+class WindowMaximizeEvent : public Event {};
+
+/**
+ * \brief Event triggered to indicate the window gained focus
+ * 
+ * This event is triggered when the window receives focus, meaning it becomes the active window
+ * for user interaction.
+ */
+class WindowFocusGainEvent : public Event {};
+
+/**
+ * \brief Event triggered to indicate the window lost focus
+ * 
+ * This event is triggered when the window loses focus, meaning it is no longer the active window
+ * for user interaction.
+ */
+class WindowFocusLostEvent : public Event {};
+
 } // namespace crepe
diff --git a/src/crepe/api/KeyCodes.h b/src/crepe/api/KeyCodes.h
index fcfc080..1b9573a 100644
--- a/src/crepe/api/KeyCodes.h
+++ b/src/crepe/api/KeyCodes.h
@@ -1,5 +1,9 @@
 #pragma once
+
+#include <unordered_map>
+
 namespace crepe {
+
 //! Enumeration for mouse button inputs, including standard and extended buttons.
 enum class MouseButton {
 	NONE = 0, //!< No mouse button input.
@@ -151,4 +155,6 @@ enum class Keycode {
 	/// \}
 	MENU = 348, //!< Menu key.
 };
+//! Typedef for keyboard state.
+typedef std::unordered_map<Keycode, bool> keyboard_state_t;
 } // namespace crepe
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index a9c5cf6..9a70334 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,13 +1,16 @@
 #include "ParticleEmitter.h"
+#include "api/Sprite.h"
 
 using namespace crepe;
 using namespace std;
 
-ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Data & data)
+ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite,
+								 const Data & data)
 	: Component(game_object_id),
+	  sprite(sprite),
 	  data(data) {
 	for (size_t i = 0; i < this->data.max_particles; i++) {
-		this->data.particles.emplace_back();
+		this->particles.emplace_back();
 	}
 }
 
@@ -20,6 +23,6 @@ void ParticleEmitter::restore(const Component & snapshot) {
 }
 
 ParticleEmitter & ParticleEmitter::operator=(const ParticleEmitter & other) {
-	data.particles = other.data.particles;
+	this->particles = other.particles;
 	return *this;
 }
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index 5f563de..1edd2b5 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -1,7 +1,11 @@
 #pragma once
 
+#include <cmath>
 #include <vector>
 
+#include "system/ParticleSystem.h"
+#include "system/RenderSystem.h"
+
 #include "Component.h"
 #include "Particle.h"
 #include "types.h"
@@ -26,15 +30,18 @@ public:
 	 */
 	struct Boundary {
 		//! boundary width (midpoint is emitter location)
-		double width = 0.0;
+		float width = INFINITY;
 		//! boundary height (midpoint is emitter location)
-		double height = 0.0;
+		float height = INFINITY;
 		//! boundary offset from particle emitter location
 		vec2 offset;
 		//! reset on exit or stop velocity and set max postion
 		bool reset_on_exit = false;
 	};
 
+	//! sprite reference of displayed sprite
+	const Sprite & sprite;
+
 	/**
 	 * \brief Holds parameters that control particle emission.
 	 *
@@ -42,32 +49,28 @@ public:
 	 * and the sprite used for rendering particles.
 	 */
 	struct Data {
-		//! position of the emitter
-		vec2 position;
+		//! offset of the emitter relative to transform
+		vec2 offset;
 		//! maximum number of particles
-		const unsigned int max_particles = 0;
-		//! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
-		double emission_rate = 0;
+		const unsigned int max_particles = 256;
+		//! rate of particle emission per second
+		float emission_rate = 50;
 		//! min speed of the particles
-		double min_speed = 0;
+		float min_speed = 100;
 		//! min speed of the particles
-		double max_speed = 0;
+		float max_speed = 100;
 		//! min angle of particle emission
-		double min_angle = 0;
+		float min_angle = 0;
 		//! max angle of particle emission
-		double max_angle = 0;
-		//! begin Lifespan of particle (only visual)
-		double begin_lifespan = 0.0;
-		//! end Lifespan of particle
-		double end_lifespan = 0.0;
+		float max_angle = 0;
+		//! begin Lifespan of particle in seconds (only visual)
+		float begin_lifespan = 0.0;
+		//! end Lifespan of particle in seconds
+		float end_lifespan = 10.0;
 		//! force over time (physics)
 		vec2 force_over_time;
 		//! particle boundary
 		Boundary boundary;
-		//! collection of particles
-		std::vector<Particle> particles;
-		//! sprite reference
-		const Sprite & sprite;
 	};
 
 public:
@@ -75,7 +78,7 @@ public:
 	 * \param game_object_id  Identifier for the game object using this emitter.
 	 * \param data            Configuration data defining particle properties.
 	 */
-	ParticleEmitter(game_object_id_t game_object_id, const Data & data);
+	ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite, const Data & data);
 
 public:
 	//! Configuration data for particle emission settings.
@@ -86,6 +89,16 @@ protected:
 	ParticleEmitter(const ParticleEmitter &) = default;
 	virtual void restore(const Component & snapshot);
 	virtual ParticleEmitter & operator=(const ParticleEmitter &);
+
+private:
+	//! Only ParticleSystem can move and read particles
+	friend ParticleSystem;
+	//! Only RenderSystem can read particles
+	friend RenderSystem;
+	//! Saves time left over from last update event.
+	float spawn_accumulator = 0;
+	//! collection of particles
+	std::vector<Particle> particles;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/Rigidbody.h b/src/crepe/api/Rigidbody.h
index b08c8db..6900295 100644
--- a/src/crepe/api/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -139,7 +139,7 @@ public:
 		 * Each element represents a layer ID, and the GameObject will only detect
 		 * collisions with other GameObjects that belong to these layers.
 		 */
-		std::set<int> collision_layers;
+		std::set<int> collision_layers = {0};
 	};
 
 public:
diff --git a/src/crepe/api/Script.cpp b/src/crepe/api/Script.cpp
index 34e7908..ee76011 100644
--- a/src/crepe/api/Script.cpp
+++ b/src/crepe/api/Script.cpp
@@ -1,7 +1,7 @@
 #include <string>
 
+#include "../facade/SDLContext.h"
 #include "../manager/SceneManager.h"
-
 #include "Script.h"
 
 using namespace crepe;
@@ -45,3 +45,16 @@ void Script::replay::release(recording_t recording) {
 	ReplayManager & mgr = this->mediator->replay_manager;
 	return mgr.release(recording);
 }
+
+const keyboard_state_t & Script::get_keyboard_state() const {
+	SDLContext & sdl_context = this->mediator->sdl_context;
+	return sdl_context.get_keyboard_state();
+}
+
+bool Script::get_key_state(Keycode key) const noexcept {
+	try {
+		return this->get_keyboard_state().at(key);
+	} catch (...) {
+		return false;
+	}
+}
diff --git a/src/crepe/api/Script.h b/src/crepe/api/Script.h
index 6536fa4..2750df0 100644
--- a/src/crepe/api/Script.h
+++ b/src/crepe/api/Script.h
@@ -2,6 +2,7 @@
 
 #include <vector>
 
+#include "../api/KeyCodes.h"
 #include "../manager/EventManager.h"
 #include "../manager/Mediator.h"
 #include "../manager/ReplayManager.h"
@@ -157,7 +158,23 @@ protected:
 		replay(OptionalRef<Mediator> & mediator) : mediator(mediator) {}
 		friend class Script;
 	} replay{mediator};
-	//! \}
+
+	/**
+	 * \brief Utility function to retrieve the keyboard state
+	 * \see SDLContext::get_keyboard_state
+	 * 
+	 * \return current keyboard state map with Keycode as key and bool as value(true = pressed, false = not pressed)
+	 * 
+	 */
+	const keyboard_state_t & get_keyboard_state() const;
+	/**
+	 * \brief Utility function to retrieve a single key state.
+	 * \see SDLContext::get_keyboard_state
+	 * 
+	 * \return Keycode state (true if pressed, false if not pressed).
+	 * 
+	 */
+	bool get_key_state(Keycode key) const noexcept;
 
 private:
 	/**
diff --git a/src/crepe/facade/EventData.h b/src/crepe/facade/EventData.h
new file mode 100644
index 0000000..a7526b4
--- /dev/null
+++ b/src/crepe/facade/EventData.h
@@ -0,0 +1,54 @@
+#pragma once
+#include "../api/KeyCodes.h"
+#include "../types.h"
+namespace crepe {
+//! EventType enum for passing eventType
+enum EventType {
+	NONE = 0,
+	MOUSE_DOWN,
+	MOUSE_UP,
+	MOUSE_MOVE,
+	MOUSE_WHEEL,
+	KEY_UP,
+	KEY_DOWN,
+	SHUTDOWN,
+	WINDOW_MINIMIZE,
+	WINDOW_MAXIMIZE,
+	WINDOW_FOCUS_GAIN,
+	WINDOW_FOCUS_LOST,
+	WINDOW_MOVE,
+	WINDOW_RESIZE,
+	WINDOW_EXPOSE,
+};
+
+//! Struct for storing key data.
+struct KeyData {
+	Keycode key = Keycode::NONE;
+	bool key_repeat = false;
+};
+
+//! Struct for storing mouse data.
+struct MouseData {
+	MouseButton mouse_button = MouseButton::NONE;
+	ivec2 mouse_position = {-1, -1};
+	int scroll_direction = -1;
+	float scroll_delta = INFINITY;
+	ivec2 rel_mouse_move = {-1, -1};
+};
+
+//! Struct for storing window data.
+struct WindowData {
+	ivec2 move_delta;
+	ivec2 resize_dimension;
+};
+
+//! EventData struct for passing event data from facade
+struct EventData {
+	EventType event_type = EventType::NONE;
+	union {
+		KeyData key_data;
+		MouseData mouse_data;
+		WindowData window_data;
+	} data;
+};
+} // namespace crepe
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index fccc15f..8cbec72 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -6,7 +6,6 @@
 #include <SDL2/SDL_rect.h>
 #include <SDL2/SDL_render.h>
 #include <SDL2/SDL_surface.h>
-#include <SDL2/SDL_video.h>
 #include <array>
 #include <cmath>
 #include <cstddef>
@@ -75,118 +74,23 @@ SDLContext::~SDLContext() {
 	SDL_Quit();
 }
 
-Keycode SDLContext::sdl_to_keycode(SDL_Keycode sdl_key) {
-	static const std::array<Keycode, SDL_NUM_SCANCODES> LOOKUP_TABLE = [] {
-		std::array<Keycode, SDL_NUM_SCANCODES> table{};
-		table.fill(Keycode::NONE);
-
-		table[SDL_SCANCODE_SPACE] = Keycode::SPACE;
-		table[SDL_SCANCODE_APOSTROPHE] = Keycode::APOSTROPHE;
-		table[SDL_SCANCODE_COMMA] = Keycode::COMMA;
-		table[SDL_SCANCODE_MINUS] = Keycode::MINUS;
-		table[SDL_SCANCODE_PERIOD] = Keycode::PERIOD;
-		table[SDL_SCANCODE_SLASH] = Keycode::SLASH;
-		table[SDL_SCANCODE_0] = Keycode::D0;
-		table[SDL_SCANCODE_1] = Keycode::D1;
-		table[SDL_SCANCODE_2] = Keycode::D2;
-		table[SDL_SCANCODE_3] = Keycode::D3;
-		table[SDL_SCANCODE_4] = Keycode::D4;
-		table[SDL_SCANCODE_5] = Keycode::D5;
-		table[SDL_SCANCODE_6] = Keycode::D6;
-		table[SDL_SCANCODE_7] = Keycode::D7;
-		table[SDL_SCANCODE_8] = Keycode::D8;
-		table[SDL_SCANCODE_9] = Keycode::D9;
-		table[SDL_SCANCODE_SEMICOLON] = Keycode::SEMICOLON;
-		table[SDL_SCANCODE_EQUALS] = Keycode::EQUAL;
-		table[SDL_SCANCODE_A] = Keycode::A;
-		table[SDL_SCANCODE_B] = Keycode::B;
-		table[SDL_SCANCODE_C] = Keycode::C;
-		table[SDL_SCANCODE_D] = Keycode::D;
-		table[SDL_SCANCODE_E] = Keycode::E;
-		table[SDL_SCANCODE_F] = Keycode::F;
-		table[SDL_SCANCODE_G] = Keycode::G;
-		table[SDL_SCANCODE_H] = Keycode::H;
-		table[SDL_SCANCODE_I] = Keycode::I;
-		table[SDL_SCANCODE_J] = Keycode::J;
-		table[SDL_SCANCODE_K] = Keycode::K;
-		table[SDL_SCANCODE_L] = Keycode::L;
-		table[SDL_SCANCODE_M] = Keycode::M;
-		table[SDL_SCANCODE_N] = Keycode::N;
-		table[SDL_SCANCODE_O] = Keycode::O;
-		table[SDL_SCANCODE_P] = Keycode::P;
-		table[SDL_SCANCODE_Q] = Keycode::Q;
-		table[SDL_SCANCODE_R] = Keycode::R;
-		table[SDL_SCANCODE_S] = Keycode::S;
-		table[SDL_SCANCODE_T] = Keycode::T;
-		table[SDL_SCANCODE_U] = Keycode::U;
-		table[SDL_SCANCODE_V] = Keycode::V;
-		table[SDL_SCANCODE_W] = Keycode::W;
-		table[SDL_SCANCODE_X] = Keycode::X;
-		table[SDL_SCANCODE_Y] = Keycode::Y;
-		table[SDL_SCANCODE_Z] = Keycode::Z;
-		table[SDL_SCANCODE_LEFTBRACKET] = Keycode::LEFT_BRACKET;
-		table[SDL_SCANCODE_BACKSLASH] = Keycode::BACKSLASH;
-		table[SDL_SCANCODE_RIGHTBRACKET] = Keycode::RIGHT_BRACKET;
-		table[SDL_SCANCODE_GRAVE] = Keycode::GRAVE_ACCENT;
-		table[SDL_SCANCODE_ESCAPE] = Keycode::ESCAPE;
-		table[SDL_SCANCODE_RETURN] = Keycode::ENTER;
-		table[SDL_SCANCODE_TAB] = Keycode::TAB;
-		table[SDL_SCANCODE_BACKSPACE] = Keycode::BACKSPACE;
-		table[SDL_SCANCODE_INSERT] = Keycode::INSERT;
-		table[SDL_SCANCODE_DELETE] = Keycode::DELETE;
-		table[SDL_SCANCODE_RIGHT] = Keycode::RIGHT;
-		table[SDL_SCANCODE_LEFT] = Keycode::LEFT;
-		table[SDL_SCANCODE_DOWN] = Keycode::DOWN;
-		table[SDL_SCANCODE_UP] = Keycode::UP;
-		table[SDL_SCANCODE_PAGEUP] = Keycode::PAGE_UP;
-		table[SDL_SCANCODE_PAGEDOWN] = Keycode::PAGE_DOWN;
-		table[SDL_SCANCODE_HOME] = Keycode::HOME;
-		table[SDL_SCANCODE_END] = Keycode::END;
-		table[SDL_SCANCODE_CAPSLOCK] = Keycode::CAPS_LOCK;
-		table[SDL_SCANCODE_SCROLLLOCK] = Keycode::SCROLL_LOCK;
-		table[SDL_SCANCODE_NUMLOCKCLEAR] = Keycode::NUM_LOCK;
-		table[SDL_SCANCODE_PRINTSCREEN] = Keycode::PRINT_SCREEN;
-		table[SDL_SCANCODE_PAUSE] = Keycode::PAUSE;
-		table[SDL_SCANCODE_F1] = Keycode::F1;
-		table[SDL_SCANCODE_F2] = Keycode::F2;
-		table[SDL_SCANCODE_F3] = Keycode::F3;
-		table[SDL_SCANCODE_F4] = Keycode::F4;
-		table[SDL_SCANCODE_F5] = Keycode::F5;
-		table[SDL_SCANCODE_F6] = Keycode::F6;
-		table[SDL_SCANCODE_F7] = Keycode::F7;
-		table[SDL_SCANCODE_F8] = Keycode::F8;
-		table[SDL_SCANCODE_F9] = Keycode::F9;
-		table[SDL_SCANCODE_F10] = Keycode::F10;
-		table[SDL_SCANCODE_F11] = Keycode::F11;
-		table[SDL_SCANCODE_F12] = Keycode::F12;
-		table[SDL_SCANCODE_KP_0] = Keycode::KP0;
-		table[SDL_SCANCODE_KP_1] = Keycode::KP1;
-		table[SDL_SCANCODE_KP_2] = Keycode::KP2;
-		table[SDL_SCANCODE_KP_3] = Keycode::KP3;
-		table[SDL_SCANCODE_KP_4] = Keycode::KP4;
-		table[SDL_SCANCODE_KP_5] = Keycode::KP5;
-		table[SDL_SCANCODE_KP_6] = Keycode::KP6;
-		table[SDL_SCANCODE_KP_7] = Keycode::KP7;
-		table[SDL_SCANCODE_KP_8] = Keycode::KP8;
-		table[SDL_SCANCODE_KP_9] = Keycode::KP9;
-		table[SDL_SCANCODE_LSHIFT] = Keycode::LEFT_SHIFT;
-		table[SDL_SCANCODE_LCTRL] = Keycode::LEFT_CONTROL;
-		table[SDL_SCANCODE_LALT] = Keycode::LEFT_ALT;
-		table[SDL_SCANCODE_LGUI] = Keycode::LEFT_SUPER;
-		table[SDL_SCANCODE_RSHIFT] = Keycode::RIGHT_SHIFT;
-		table[SDL_SCANCODE_RCTRL] = Keycode::RIGHT_CONTROL;
-		table[SDL_SCANCODE_RALT] = Keycode::RIGHT_ALT;
-		table[SDL_SCANCODE_RGUI] = Keycode::RIGHT_SUPER;
-		table[SDL_SCANCODE_MENU] = Keycode::MENU;
+Keycode SDLContext::sdl_to_keycode(SDL_Scancode sdl_key) {
+	if (!lookup_table.contains(sdl_key)) return Keycode::NONE;
+	return lookup_table.at(sdl_key);
+}
 
-		return table;
-	}();
+const keyboard_state_t & SDLContext::get_keyboard_state() {
+	SDL_PumpEvents();
+	const Uint8 * current_state = SDL_GetKeyboardState(nullptr);
 
-	if (sdl_key < 0 || sdl_key >= SDL_NUM_SCANCODES) {
-		return Keycode::NONE;
-	}
+	for (int i = 0; i < SDL_NUM_SCANCODES; ++i) {
 
-	return LOOKUP_TABLE[sdl_key];
+		Keycode key = sdl_to_keycode(static_cast<SDL_Scancode>(i));
+		if (key != Keycode::NONE) {
+			this->keyboard_state[key] = current_state[i] != 0;
+		}
+	}
+	return this->keyboard_state;
 }
 
 MouseButton SDLContext::sdl_to_mousebutton(Uint8 sdl_button) {
@@ -365,8 +269,8 @@ ivec2 SDLContext::get_size(const Texture & ctx) {
 	return size;
 }
 
-std::vector<SDLContext::EventData> SDLContext::get_events() {
-	std::vector<SDLContext::EventData> event_list;
+std::vector<EventData> SDLContext::get_events() {
+	std::vector<EventData> event_list;
 	SDL_Event event;
 	const CameraAuxiliaryData & cam = this->cam_aux_data;
 	while (SDL_PollEvent(&event)) {
@@ -375,60 +279,130 @@ std::vector<SDLContext::EventData> SDLContext::get_events() {
 		mouse_pos.y = (event.button.y - cam.bar_size.y) / cam.render_scale.y;
 		switch (event.type) {
 			case SDL_QUIT:
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::SHUTDOWN,
-				});
+				event_list.push_back({.event_type = EventType::SHUTDOWN});
 				break;
 			case SDL_KEYDOWN:
 				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::KEYDOWN,
-					.key = sdl_to_keycode(event.key.keysym.scancode),
-					.key_repeat = (event.key.repeat != 0),
+					.event_type = EventType::KEY_DOWN,
+					.data = {
+						.key_data = {
+							.key = this->sdl_to_keycode(event.key.keysym.scancode),
+							.key_repeat = event.key.repeat != 0,
+						},
+					},
 				});
 				break;
+
 			case SDL_KEYUP:
 				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::KEYUP,
-					.key = sdl_to_keycode(event.key.keysym.scancode),
+					.event_type = EventType::KEY_UP,
+					.data = {
+						.key_data = {
+							.key = this->sdl_to_keycode(event.key.keysym.scancode),
+							.key_repeat = event.key.repeat != 0,
+						},
+					},
 				});
 				break;
+
 			case SDL_MOUSEBUTTONDOWN:
 				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEDOWN,
-					.mouse_button = sdl_to_mousebutton(event.button.button),
-					.mouse_position = mouse_pos,
+					.event_type = EventType::MOUSE_DOWN,
+					.data = {
+						.mouse_data = {
+							.mouse_button = this->sdl_to_mousebutton(event.button.button),
+							.mouse_position = mouse_pos,
+						},
+					},
 				});
 				break;
-			case SDL_MOUSEBUTTONUP: {
-				int x, y;
-				SDL_GetMouseState(&x, &y);
+			case SDL_MOUSEBUTTONUP:
 				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEUP,
-					.mouse_button = sdl_to_mousebutton(event.button.button),
-					.mouse_position = mouse_pos,
+					.event_type = EventType::MOUSE_UP,
+					.data = {
+						.mouse_data = {
+							.mouse_button = this->sdl_to_mousebutton(event.button.button),
+							.mouse_position = mouse_pos,
+						},
+					},
 				});
-			} break;
+				break;
 
-			case SDL_MOUSEMOTION: {
-				event_list.push_back(
-					EventData{.event_type = SDLContext::EventType::MOUSEMOVE,
-							  .mouse_position = mouse_pos,
-							  .rel_mouse_move = {event.motion.xrel, event.motion.yrel}});
-			} break;
+			case SDL_MOUSEMOTION:
+				event_list.push_back(EventData{
+					.event_type = EventType::MOUSE_MOVE,
+					.data = {
+						.mouse_data = {
+							.mouse_position = mouse_pos,
+							.rel_mouse_move = {event.motion.xrel, event.motion.yrel},
+						},
+					},
+				});
+				break;
 
-			case SDL_MOUSEWHEEL: {
+			case SDL_MOUSEWHEEL:
 				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEWHEEL,
-					.mouse_position = mouse_pos,
-					// TODO: why is this needed?
-					.scroll_direction = event.wheel.y < 0 ? -1 : 1,
-					.scroll_delta = event.wheel.preciseY,
+					.event_type = EventType::MOUSE_WHEEL,
+					.data = {
+						.mouse_data = {
+							.mouse_position = mouse_pos,
+							.scroll_direction = event.wheel.y < 0 ? -1 : 1,
+							.scroll_delta = event.wheel.preciseY,
+						},
+					},
 				});
-			} break;
+				break;
+			case SDL_WINDOWEVENT:
+				this->handle_window_event(event.window, event_list);
+				break;
 		}
 	}
+
 	return event_list;
 }
+
+void SDLContext::handle_window_event(const SDL_WindowEvent & window_event,
+									 std::vector<EventData> & event_list) {
+	switch (window_event.event) {
+		case SDL_WINDOWEVENT_EXPOSED:
+			event_list.push_back(EventData{EventType::WINDOW_EXPOSE});
+			break;
+		case SDL_WINDOWEVENT_RESIZED:
+			event_list.push_back(EventData{
+					.event_type = EventType::WINDOW_RESIZE,
+					.data = {
+						.window_data = {
+							.resize_dimension = {window_event.data1, window_event.data2}
+						},
+					},
+				});
+			break;
+		case SDL_WINDOWEVENT_MOVED:
+			event_list.push_back(EventData{
+					.event_type = EventType::WINDOW_MOVE,
+					.data = {
+						.window_data = {
+							.move_delta = {window_event.data1, window_event.data2}
+						},
+					},
+				});
+			break;
+
+		case SDL_WINDOWEVENT_MINIMIZED:
+			event_list.push_back(EventData{EventType::WINDOW_MINIMIZE});
+			break;
+		case SDL_WINDOWEVENT_MAXIMIZED:
+			event_list.push_back(EventData{EventType::WINDOW_MAXIMIZE});
+			break;
+		case SDL_WINDOWEVENT_FOCUS_GAINED:
+			event_list.push_back(EventData{EventType::WINDOW_FOCUS_GAIN});
+			break;
+		case SDL_WINDOWEVENT_FOCUS_LOST:
+			event_list.push_back(EventData{EventType::WINDOW_FOCUS_LOST});
+			break;
+	}
+}
+
 void SDLContext::set_color_texture(const Texture & texture, const Color & color) {
 	SDL_SetTextureColorMod(texture.get_img(), color.r, color.g, color.b);
 	SDL_SetTextureAlphaMod(texture.get_img(), color.a);
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index bcadf87..b9c7fbd 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -9,17 +9,18 @@
 #include <functional>
 #include <memory>
 #include <string>
+#include <unordered_map>
 
+#include "../types.h"
 #include "api/Camera.h"
 #include "api/Color.h"
 #include "api/KeyCodes.h"
 #include "api/Sprite.h"
 #include "api/Transform.h"
 
-#include "types.h"
+#include "EventData.h"
 
 namespace crepe {
-
 class Texture;
 class Mediator;
 
@@ -69,29 +70,11 @@ public:
 	};
 
 public:
-	//! EventType enum for passing eventType
-	enum EventType {
-		NONE = 0,
-		MOUSEDOWN,
-		MOUSEUP,
-		MOUSEMOVE,
-		MOUSEWHEEL,
-		KEYUP,
-		KEYDOWN,
-		SHUTDOWN,
-
-	};
-	//! EventData struct for passing event data from facade
-	struct EventData {
-		SDLContext::EventType event_type = SDLContext::EventType::NONE;
-		Keycode key = Keycode::NONE;
-		bool key_repeat = false;
-		MouseButton mouse_button = MouseButton::NONE;
-		ivec2 mouse_position = {-1, -1};
-		int scroll_direction = -1;
-		float scroll_delta = INFINITY;
-		ivec2 rel_mouse_move = {-1, -1};
-	};
+	/**
+	 * \brief Gets the singleton instance of SDLContext.
+	 * \return Reference to the SDLContext instance.
+	 */
+	static SDLContext & get_instance();
 
 public:
 	SDLContext(const SDLContext &) = delete;
@@ -122,18 +105,25 @@ public:
 	 *
 	 * \return Events that occurred since last call to `get_events()`
 	 */
-	std::vector<SDLContext::EventData> get_events();
-
+	std::vector<EventData> get_events();
 	/**
-	 * \brief Converts an SDL key code to the custom Keycode type.
+	 * \brief Fills event_list with triggered window events
 	 *
-	 * This method maps an SDL key code to the corresponding `Keycode` enum value,
+	 * This method checks if any window events are triggered and adds them to the event_list.
+	 *
+	 */
+	void handle_window_event(const SDL_WindowEvent & window_event,
+							 std::vector<EventData> & event_list);
+	/**
+	 * \brief Converts an SDL scan code to the custom Keycode type.
+	 *
+	 * This method maps an SDL scan code to the corresponding `Keycode` enum value,
 	 * which is used internally by the system to identify the keys.
 	 *
-	 * \param sdl_key The SDL key code to convert.
+	 * \param sdl_key The SDL scan code to convert.
 	 * \return The corresponding `Keycode` value or `Keycode::NONE` if the key is unrecognized.
 	 */
-	Keycode sdl_to_keycode(SDL_Keycode sdl_key);
+	Keycode sdl_to_keycode(SDL_Scancode sdl_key);
 
 	/**
 	 * \brief Converts an SDL mouse button code to the custom MouseButton type.
@@ -145,6 +135,16 @@ public:
 	 * \return The corresponding `MouseButton` value or `MouseButton::NONE` if the key is unrecognized
 	 */
 	MouseButton sdl_to_mousebutton(Uint8 sdl_button);
+	/**
+	 * \brief Gets the current state of the keyboard.
+	 *
+	 * Updates the internal keyboard state by checking the current key states using
+	 * SDL's `SDL_GetKeyboardState()`, and returns a reference to the `keyboard_state_t`.
+	 *
+	 * \return A constant reference to the `keyboard_state_t`, which holds the state
+	 *         of each key (true = pressed, false = not pressed).
+	 */
+	const keyboard_state_t & get_keyboard_state();
 
 public:
 	/**
@@ -240,6 +240,110 @@ private:
 	 * - this is defined in this class because get_events() needs this information aswell
 	 */
 	CameraAuxiliaryData cam_aux_data;
+
+private:
+	//! variable to store the state of each key (true = pressed, false = not pressed)
+	keyboard_state_t keyboard_state;
+	//! lookup table for converting SDL_SCANCODES to Keycodes
+	const std::unordered_map<SDL_Scancode, Keycode> lookup_table
+		= {{SDL_SCANCODE_SPACE, Keycode::SPACE},
+		   {SDL_SCANCODE_APOSTROPHE, Keycode::APOSTROPHE},
+		   {SDL_SCANCODE_COMMA, Keycode::COMMA},
+		   {SDL_SCANCODE_MINUS, Keycode::MINUS},
+		   {SDL_SCANCODE_PERIOD, Keycode::PERIOD},
+		   {SDL_SCANCODE_SLASH, Keycode::SLASH},
+		   {SDL_SCANCODE_0, Keycode::D0},
+		   {SDL_SCANCODE_1, Keycode::D1},
+		   {SDL_SCANCODE_2, Keycode::D2},
+		   {SDL_SCANCODE_3, Keycode::D3},
+		   {SDL_SCANCODE_4, Keycode::D4},
+		   {SDL_SCANCODE_5, Keycode::D5},
+		   {SDL_SCANCODE_6, Keycode::D6},
+		   {SDL_SCANCODE_7, Keycode::D7},
+		   {SDL_SCANCODE_8, Keycode::D8},
+		   {SDL_SCANCODE_9, Keycode::D9},
+		   {SDL_SCANCODE_SEMICOLON, Keycode::SEMICOLON},
+		   {SDL_SCANCODE_EQUALS, Keycode::EQUAL},
+		   {SDL_SCANCODE_A, Keycode::A},
+		   {SDL_SCANCODE_B, Keycode::B},
+		   {SDL_SCANCODE_C, Keycode::C},
+		   {SDL_SCANCODE_D, Keycode::D},
+		   {SDL_SCANCODE_E, Keycode::E},
+		   {SDL_SCANCODE_F, Keycode::F},
+		   {SDL_SCANCODE_G, Keycode::G},
+		   {SDL_SCANCODE_H, Keycode::H},
+		   {SDL_SCANCODE_I, Keycode::I},
+		   {SDL_SCANCODE_J, Keycode::J},
+		   {SDL_SCANCODE_K, Keycode::K},
+		   {SDL_SCANCODE_L, Keycode::L},
+		   {SDL_SCANCODE_M, Keycode::M},
+		   {SDL_SCANCODE_N, Keycode::N},
+		   {SDL_SCANCODE_O, Keycode::O},
+		   {SDL_SCANCODE_P, Keycode::P},
+		   {SDL_SCANCODE_Q, Keycode::Q},
+		   {SDL_SCANCODE_R, Keycode::R},
+		   {SDL_SCANCODE_S, Keycode::S},
+		   {SDL_SCANCODE_T, Keycode::T},
+		   {SDL_SCANCODE_U, Keycode::U},
+		   {SDL_SCANCODE_V, Keycode::V},
+		   {SDL_SCANCODE_W, Keycode::W},
+		   {SDL_SCANCODE_X, Keycode::X},
+		   {SDL_SCANCODE_Y, Keycode::Y},
+		   {SDL_SCANCODE_Z, Keycode::Z},
+		   {SDL_SCANCODE_LEFTBRACKET, Keycode::LEFT_BRACKET},
+		   {SDL_SCANCODE_BACKSLASH, Keycode::BACKSLASH},
+		   {SDL_SCANCODE_RIGHTBRACKET, Keycode::RIGHT_BRACKET},
+		   {SDL_SCANCODE_GRAVE, Keycode::GRAVE_ACCENT},
+		   {SDL_SCANCODE_ESCAPE, Keycode::ESCAPE},
+		   {SDL_SCANCODE_RETURN, Keycode::ENTER},
+		   {SDL_SCANCODE_TAB, Keycode::TAB},
+		   {SDL_SCANCODE_BACKSPACE, Keycode::BACKSPACE},
+		   {SDL_SCANCODE_INSERT, Keycode::INSERT},
+		   {SDL_SCANCODE_DELETE, Keycode::DELETE},
+		   {SDL_SCANCODE_RIGHT, Keycode::RIGHT},
+		   {SDL_SCANCODE_LEFT, Keycode::LEFT},
+		   {SDL_SCANCODE_DOWN, Keycode::DOWN},
+		   {SDL_SCANCODE_UP, Keycode::UP},
+		   {SDL_SCANCODE_PAGEUP, Keycode::PAGE_UP},
+		   {SDL_SCANCODE_PAGEDOWN, Keycode::PAGE_DOWN},
+		   {SDL_SCANCODE_HOME, Keycode::HOME},
+		   {SDL_SCANCODE_END, Keycode::END},
+		   {SDL_SCANCODE_CAPSLOCK, Keycode::CAPS_LOCK},
+		   {SDL_SCANCODE_SCROLLLOCK, Keycode::SCROLL_LOCK},
+		   {SDL_SCANCODE_NUMLOCKCLEAR, Keycode::NUM_LOCK},
+		   {SDL_SCANCODE_PRINTSCREEN, Keycode::PRINT_SCREEN},
+		   {SDL_SCANCODE_PAUSE, Keycode::PAUSE},
+		   {SDL_SCANCODE_F1, Keycode::F1},
+		   {SDL_SCANCODE_F2, Keycode::F2},
+		   {SDL_SCANCODE_F3, Keycode::F3},
+		   {SDL_SCANCODE_F4, Keycode::F4},
+		   {SDL_SCANCODE_F5, Keycode::F5},
+		   {SDL_SCANCODE_F6, Keycode::F6},
+		   {SDL_SCANCODE_F7, Keycode::F7},
+		   {SDL_SCANCODE_F8, Keycode::F8},
+		   {SDL_SCANCODE_F9, Keycode::F9},
+		   {SDL_SCANCODE_F10, Keycode::F10},
+		   {SDL_SCANCODE_F11, Keycode::F11},
+		   {SDL_SCANCODE_F12, Keycode::F12},
+		   {SDL_SCANCODE_KP_0, Keycode::KP0},
+		   {SDL_SCANCODE_KP_1, Keycode::KP1},
+		   {SDL_SCANCODE_KP_2, Keycode::KP2},
+		   {SDL_SCANCODE_KP_3, Keycode::KP3},
+		   {SDL_SCANCODE_KP_4, Keycode::KP4},
+		   {SDL_SCANCODE_KP_5, Keycode::KP5},
+		   {SDL_SCANCODE_KP_6, Keycode::KP6},
+		   {SDL_SCANCODE_KP_7, Keycode::KP7},
+		   {SDL_SCANCODE_KP_8, Keycode::KP8},
+		   {SDL_SCANCODE_KP_9, Keycode::KP9},
+		   {SDL_SCANCODE_LSHIFT, Keycode::LEFT_SHIFT},
+		   {SDL_SCANCODE_LCTRL, Keycode::LEFT_CONTROL},
+		   {SDL_SCANCODE_LALT, Keycode::LEFT_ALT},
+		   {SDL_SCANCODE_LGUI, Keycode::LEFT_SUPER},
+		   {SDL_SCANCODE_RSHIFT, Keycode::RIGHT_SHIFT},
+		   {SDL_SCANCODE_RCTRL, Keycode::RIGHT_CONTROL},
+		   {SDL_SCANCODE_RALT, Keycode::RIGHT_ALT},
+		   {SDL_SCANCODE_RGUI, Keycode::RIGHT_SUPER},
+		   {SDL_SCANCODE_MENU, Keycode::MENU}};
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/InputSystem.cpp b/src/crepe/system/InputSystem.cpp
index 7796b47..58720dd 100644
--- a/src/crepe/system/InputSystem.cpp
+++ b/src/crepe/system/InputSystem.cpp
@@ -1,7 +1,7 @@
 #include "../api/Button.h"
+#include "../facade/SDLContext.h"
 #include "../manager/ComponentManager.h"
 #include "../manager/EventManager.h"
-#include "facade/SDLContext.h"
 #include "util/Log.h"
 
 #include "InputSystem.h"
@@ -10,12 +10,13 @@ using namespace crepe;
 
 void InputSystem::fixed_update() {
 	ComponentManager & mgr = this->mediator.component_manager;
-	EventManager & event_mgr = this->mediator.event_manager;
+
 	SDLContext & context = this->mediator.sdl_context;
-	std::vector<SDLContext::EventData> event_list = context.get_events();
+	std::vector<EventData> event_list = context.get_events();
 	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
 	RefVector<Camera> cameras = mgr.get_components_by_type<Camera>();
 	OptionalRef<Camera> curr_cam_ref;
+
 	// Find the active camera
 	for (Camera & cam : cameras) {
 		if (!cam.active) continue;
@@ -23,150 +24,185 @@ void InputSystem::fixed_update() {
 		break;
 	}
 	if (!curr_cam_ref) return;
+
 	Camera & current_cam = curr_cam_ref;
 	RefVector<Transform> transform_vec
 		= mgr.get_components_by_id<Transform>(current_cam.game_object_id);
 	Transform & cam_transform = transform_vec.front().get();
-	int camera_origin_x = cam_transform.position.x + current_cam.data.postion_offset.x
-						  - (current_cam.viewport_size.x / 2);
-	int camera_origin_y = cam_transform.position.y + current_cam.data.postion_offset.y
-						  - (current_cam.viewport_size.y / 2);
-
-	for (const SDLContext::EventData & event : event_list) {
-		int world_mouse_x = event.mouse_position.x + camera_origin_x;
-		int world_mouse_y = event.mouse_position.y + camera_origin_y;
-		// check if the mouse is within the viewport
-		bool mouse_in_viewport
-			= !(world_mouse_x < camera_origin_x
-				|| world_mouse_x > camera_origin_x + current_cam.viewport_size.x
-				|| world_mouse_y < camera_origin_y
-				|| world_mouse_y > camera_origin_y + current_cam.viewport_size.y);
-
-		switch (event.event_type) {
-			case SDLContext::EventType::KEYDOWN:
-				event_mgr.queue_event<KeyPressEvent>(KeyPressEvent{
-					.repeat = event.key_repeat,
-					.key = event.key,
-				});
-				break;
-			case SDLContext::EventType::KEYUP:
-				event_mgr.queue_event<KeyReleaseEvent>(KeyReleaseEvent{
-					.key = event.key,
-				});
-				break;
-			case SDLContext::EventType::MOUSEDOWN:
-				if (!mouse_in_viewport) {
-					break;
-				}
-				event_mgr.queue_event<MousePressEvent>(MousePressEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.button = event.mouse_button,
-				});
-				this->last_mouse_down_position = {world_mouse_x, world_mouse_y};
-				this->last_mouse_button = event.mouse_button;
-				break;
-			case SDLContext::EventType::MOUSEUP: {
-				if (!mouse_in_viewport) {
-					break;
-				}
-				event_mgr.queue_event<MouseReleaseEvent>(MouseReleaseEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.button = event.mouse_button,
-				});
-				//check if its a click by checking the last button down
-				int delta_x = world_mouse_x - this->last_mouse_down_position.x;
-				int delta_y = world_mouse_y - this->last_mouse_down_position.y;
-
-				if (this->last_mouse_button == event.mouse_button
-					&& std::abs(delta_x) <= click_tolerance
-					&& std::abs(delta_y) <= click_tolerance) {
-					event_mgr.queue_event<MouseClickEvent>(MouseClickEvent{
-						.mouse_x = world_mouse_x,
-						.mouse_y = world_mouse_y,
-						.button = event.mouse_button,
-					});
-
-					this->handle_click(event.mouse_button, world_mouse_x, world_mouse_y);
-				}
-			} break;
-			case SDLContext::EventType::MOUSEMOVE:
-				if (!mouse_in_viewport) {
-					break;
-				}
-				event_mgr.queue_event<MouseMoveEvent>(MouseMoveEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.delta_x = event.rel_mouse_move.x,
-					.delta_y = event.rel_mouse_move.y,
-				});
-				this->handle_move(event, world_mouse_x, world_mouse_y);
-				break;
-			case SDLContext::EventType::MOUSEWHEEL:
-				event_mgr.queue_event<MouseScrollEvent>(MouseScrollEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.scroll_direction = event.scroll_direction,
-					.scroll_delta = event.scroll_delta,
+
+	vec2 camera_origin = cam_transform.position + current_cam.data.postion_offset
+						 - (current_cam.viewport_size / 2);
+
+	for (const EventData & event : event_list) {
+		// Only calculate mouse coordinates for relevant events
+		if (event.event_type == EventType::MOUSE_DOWN
+			|| event.event_type == EventType::MOUSE_UP
+			|| event.event_type == EventType::MOUSE_MOVE
+			|| event.event_type == EventType::MOUSE_WHEEL) {
+			this->handle_mouse_event(event, camera_origin, current_cam);
+
+		} else {
+			this->handle_non_mouse_event(event);
+		}
+	}
+}
+
+void InputSystem::handle_mouse_event(const EventData & event, const vec2 & camera_origin,
+									 const Camera & current_cam) {
+	EventManager & event_mgr = this->mediator.event_manager;
+	vec2 adjusted_mouse;
+	adjusted_mouse.x = event.data.mouse_data.mouse_position.x + camera_origin.x;
+	adjusted_mouse.x = event.data.mouse_data.mouse_position.y + camera_origin.y;
+	// Check if the mouse is within the viewport
+	if ((adjusted_mouse.x < camera_origin.x
+		 || adjusted_mouse.x > camera_origin.x + current_cam.viewport_size.x
+		 || adjusted_mouse.y < camera_origin.y
+		 || adjusted_mouse.y > camera_origin.y + current_cam.viewport_size.y))
+		return;
+
+	// Handle mouse-specific events
+	switch (event.event_type) {
+		case EventType::MOUSE_DOWN:
+			event_mgr.queue_event<MousePressEvent>({
+				.mouse_pos = adjusted_mouse,
+				.button = event.data.mouse_data.mouse_button,
+			});
+			this->last_mouse_down_position = adjusted_mouse;
+			this->last_mouse_button = event.data.mouse_data.mouse_button;
+			break;
+
+		case EventType::MOUSE_UP: {
+			event_mgr.queue_event<MouseReleaseEvent>({
+				.mouse_pos = adjusted_mouse,
+				.button = event.data.mouse_data.mouse_button,
+			});
+			vec2 delta_move = adjusted_mouse - this->last_mouse_down_position;
+			int click_tolerance = Config::get_instance().input.click_tolerance;
+			if (this->last_mouse_button == event.data.mouse_data.mouse_button
+				&& std::abs(delta_move.x) <= click_tolerance
+				&& std::abs(delta_move.y) <= click_tolerance) {
+				event_mgr.queue_event<MouseClickEvent>({
+					.mouse_pos = adjusted_mouse,
+					.button = event.data.mouse_data.mouse_button,
 				});
-				break;
-			case SDLContext::EventType::SHUTDOWN:
-				event_mgr.queue_event<ShutDownEvent>(ShutDownEvent{});
-				break;
-			default:
-				break;
+				this->handle_click(event.data.mouse_data.mouse_button, adjusted_mouse);
+			}
+			break;
 		}
+
+		case EventType::MOUSE_MOVE:
+			event_mgr.queue_event<MouseMoveEvent>({
+				.mouse_pos = adjusted_mouse,
+				.mouse_delta = event.data.mouse_data.rel_mouse_move,
+			});
+			this->handle_move(event, adjusted_mouse);
+			break;
+
+		case EventType::MOUSE_WHEEL:
+			event_mgr.queue_event<MouseScrollEvent>({
+				.mouse_pos = adjusted_mouse,
+				.scroll_direction = event.data.mouse_data.scroll_direction,
+				.scroll_delta = event.data.mouse_data.scroll_delta,
+			});
+			break;
+
+		default:
+			break;
+	}
+}
+
+void InputSystem::handle_non_mouse_event(const EventData & event) {
+	EventManager & event_mgr = this->mediator.event_manager;
+	switch (event.event_type) {
+		case EventType::KEY_DOWN:
+
+			event_mgr.queue_event<KeyPressEvent>(
+				{.repeat = event.data.key_data.key_repeat, .key = event.data.key_data.key});
+			break;
+		case EventType::KEY_UP:
+			event_mgr.queue_event<KeyReleaseEvent>({.key = event.data.key_data.key});
+			break;
+		case EventType::SHUTDOWN:
+			event_mgr.queue_event<ShutDownEvent>({});
+			break;
+		case EventType::WINDOW_EXPOSE:
+			event_mgr.queue_event<WindowExposeEvent>({});
+			break;
+		case EventType::WINDOW_RESIZE:
+			event_mgr.queue_event<WindowResizeEvent>(
+				WindowResizeEvent{.dimensions = event.data.window_data.resize_dimension});
+			break;
+		case EventType::WINDOW_MOVE:
+			event_mgr.queue_event<WindowMoveEvent>(
+				{.delta_move = event.data.window_data.move_delta});
+			break;
+		case EventType::WINDOW_MINIMIZE:
+			event_mgr.queue_event<WindowMinimizeEvent>({});
+			break;
+		case EventType::WINDOW_MAXIMIZE:
+			event_mgr.queue_event<WindowMaximizeEvent>({});
+			break;
+		case EventType::WINDOW_FOCUS_GAIN:
+			event_mgr.queue_event<WindowFocusGainEvent>({});
+			break;
+		case EventType::WINDOW_FOCUS_LOST:
+			event_mgr.queue_event<WindowFocusLostEvent>({});
+			break;
+		default:
+			break;
 	}
 }
-void InputSystem::handle_move(const SDLContext::EventData & event_data,
-							  const int world_mouse_x, const int world_mouse_y) {
+
+void InputSystem::handle_move(const EventData & event_data, const vec2 & mouse_pos) {
 	ComponentManager & mgr = this->mediator.component_manager;
 
 	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
 
 	for (Button & button : buttons) {
+		if (!button.active) continue;
 		RefVector<Transform> transform_vec
 			= mgr.get_components_by_id<Transform>(button.game_object_id);
 		Transform & transform(transform_vec.front().get());
 
 		bool was_hovering = button.hover;
-		if (button.active
-			&& this->is_mouse_inside_button(world_mouse_x, world_mouse_y, button, transform)) {
+		if (this->is_mouse_inside_button(mouse_pos, button, transform)) {
 			button.hover = true;
-			if (!was_hovering && button.on_mouse_enter) {
+			if (!button.on_mouse_enter) continue;
+			if (!was_hovering) {
 				button.on_mouse_enter();
 			}
 		} else {
 			button.hover = false;
 			// Trigger the on_exit callback if the hover state just changed to false
-			if (was_hovering && button.on_mouse_exit) {
+			if (!button.on_mouse_exit) continue;
+			if (was_hovering) {
 				button.on_mouse_exit();
 			}
 		}
 	}
 }
 
-void InputSystem::handle_click(const MouseButton & mouse_button, const int world_mouse_x,
-							   const int world_mouse_y) {
+void InputSystem::handle_click(const MouseButton & mouse_button, const vec2 & mouse_pos) {
 	ComponentManager & mgr = this->mediator.component_manager;
 
 	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
 
 	for (Button & button : buttons) {
+		if (!button.active) continue;
+		if (!button.on_click) continue;
 		RefVector<Transform> transform_vec
 			= mgr.get_components_by_id<Transform>(button.game_object_id);
 		Transform & transform = transform_vec.front().get();
 
-		if (button.active
-			&& this->is_mouse_inside_button(world_mouse_x, world_mouse_y, button, transform)) {
-			this->handle_button_press(button);
+		if (this->is_mouse_inside_button(mouse_pos, button, transform)) {
+
+			button.on_click();
 		}
 	}
 }
 
-bool InputSystem::is_mouse_inside_button(const int mouse_x, const int mouse_y,
-										 const Button & button, const Transform & transform) {
+bool InputSystem::is_mouse_inside_button(const vec2 & mouse_pos, const Button & button,
+										 const Transform & transform) {
 	int actual_x = transform.position.x + button.offset.x;
 	int actual_y = transform.position.y + button.offset.y;
 
@@ -174,17 +210,6 @@ bool InputSystem::is_mouse_inside_button(const int mouse_x, const int mouse_y,
 	int half_height = button.dimensions.y / 2;
 
 	// Check if the mouse is within the button's boundaries
-	return mouse_x >= actual_x - half_width && mouse_x <= actual_x + half_width
-		   && mouse_y >= actual_y - half_height && mouse_y <= actual_y + half_height;
-}
-
-void InputSystem::handle_button_press(Button & button) {
-	if (button.is_toggle) {
-		if (!button.is_pressed && button.on_click) {
-			button.on_click();
-		}
-		button.is_pressed = !button.is_pressed;
-	} else if (button.on_click) {
-		button.on_click();
-	}
+	return mouse_pos.x >= actual_x - half_width && mouse_pos.x <= actual_x + half_width
+		   && mouse_pos.y >= actual_y - half_height && mouse_pos.y <= actual_y + half_height;
 }
diff --git a/src/crepe/system/InputSystem.h b/src/crepe/system/InputSystem.h
index 62b0fcd..9e7846c 100644
--- a/src/crepe/system/InputSystem.h
+++ b/src/crepe/system/InputSystem.h
@@ -1,6 +1,8 @@
 #pragma once
 
-#include "../facade/SDLContext.h"
+#include "../api/Config.h"
+#include "../facade/EventData.h"
+
 #include "../types.h"
 #include "../util/OptionalRef.h"
 
@@ -11,7 +13,6 @@ namespace crepe {
 class Camera;
 class Button;
 class Transform;
-
 /**
  * \brief Handles the processing of input events created by SDLContext
  *
@@ -31,15 +32,30 @@ public:
 
 private:
 	//! Stores the last position of the mouse when the button was pressed.
-	ivec2 last_mouse_down_position;
+	vec2 last_mouse_down_position;
 	// TODO: specify world/hud space and make regular `vec2`
 
 	//! Stores the last mouse button pressed.
 	MouseButton last_mouse_button = MouseButton::NONE;
-
-	//! The maximum allowable distance between mouse down and mouse up to register as a click.
-	const int click_tolerance = 5;
-
+	/**
+	 * \brief Handles mouse-related events.
+	 * \param event The event data for the mouse event.
+	 * \param camera_origin The origin position of the camera in world space.
+	 * \param current_cam The currently active camera.
+	 *
+	 * This method processes mouse events, adjusts the mouse position to world coordinates,
+	 * and triggers the appropriate mouse-specific event handling logic.
+	 */
+	void handle_mouse_event(const EventData & event, const vec2 & camera_origin,
+							const Camera & current_cam);
+	/**
+	 * \brief Handles non-mouse-related events.
+	 * \param event The event data for the non-mouse event.
+	 *
+	 * This method processes events that do not involve the mouse, such as keyboard events,
+	 * window events, and shutdown events, and triggers the corresponding event actions.
+	 */
+	void handle_non_mouse_event(const EventData & event);
 	/**
 	* \brief Handles the mouse click event.
 	* \param mouse_button The mouse button involved in the click.
@@ -48,8 +64,7 @@ private:
 	*
 	* This method processes the mouse click event and triggers the corresponding button action.
 	*/
-	void handle_click(const MouseButton & mouse_button, const int world_mouse_x,
-					  const int world_mouse_y);
+	void handle_click(const MouseButton & mouse_button, const vec2 & mouse_pos);
 
 	/**
 	* \brief Handles the mouse movement event.
@@ -59,8 +74,7 @@ private:
 	*
 	* This method processes the mouse movement event and updates the button hover state.
 	*/
-	void handle_move(const SDLContext::EventData & event_data, const int world_mouse_x,
-					 const int world_mouse_y);
+	void handle_move(const EventData & event_data, const vec2 & mouse_pos);
 
 	/**
 	* \brief Checks if the mouse position is inside the bounds of the button.
@@ -70,8 +84,8 @@ private:
 	* \param transform The transform component of the button.
 	* \return True if the mouse is inside the button, false otherwise.
 	*/
-	bool is_mouse_inside_button(const int world_mouse_x, const int world_mouse_y,
-								const Button & button, const Transform & transform);
+	bool is_mouse_inside_button(const vec2 & mouse_pos, const Button & button,
+								const Transform & transform);
 
 	/**
 	* \brief Handles the button press event, calling the on_click callback if necessary.
diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp
index 5ccd128..bbc7366 100644
--- a/src/crepe/system/ParticleSystem.cpp
+++ b/src/crepe/system/ParticleSystem.cpp
@@ -1,3 +1,4 @@
+#include <chrono>
 #include <cmath>
 #include <cstdlib>
 #include <ctime>
@@ -5,14 +6,19 @@
 #include "../api/ParticleEmitter.h"
 #include "../api/Transform.h"
 #include "../manager/ComponentManager.h"
+#include "../manager/LoopTimerManager.h"
 
 #include "ParticleSystem.h"
 
 using namespace crepe;
 
-void ParticleSystem::frame_update() {
+void ParticleSystem::fixed_update() {
 	// Get all emitters
-	ComponentManager & mgr = this->mediator.component_manager;
+	const Mediator & mediator = this->mediator;
+	LoopTimerManager & loop_timer = mediator.loop_timer;
+	ComponentManager & mgr = mediator.component_manager;
+	float dt = loop_timer.get_scaled_fixed_delta_time().count();
+
 	RefVector<ParticleEmitter> emitters = mgr.get_components_by_type<ParticleEmitter>();
 
 	for (ParticleEmitter & emitter : emitters) {
@@ -21,38 +27,39 @@ void ParticleSystem::frame_update() {
 			= mgr.get_components_by_id<Transform>(emitter.game_object_id).front().get();
 
 		// Emit particles based on emission_rate
-		int updates = calculate_update(this->update_count, emitter.data.emission_rate);
-		for (size_t i = 0; i < updates; i++) {
-			emit_particle(emitter, transform);
+		emitter.spawn_accumulator += emitter.data.emission_rate * dt;
+		while (emitter.spawn_accumulator >= 1.0) {
+			this->emit_particle(emitter, transform);
+			emitter.spawn_accumulator -= 1.0;
 		}
 
 		// Update all particles
-		for (Particle & particle : emitter.data.particles) {
+		for (Particle & particle : emitter.particles) {
 			if (particle.active) {
-				particle.update();
+				particle.update(dt);
 			}
 		}
 
 		// Check if within boundary
-		check_bounds(emitter, transform);
+		this->check_bounds(emitter, transform);
 	}
-
-	this->update_count = (this->update_count + 1) % this->MAX_UPDATE_COUNT;
 }
 
 void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform & transform) {
 	constexpr float DEG_TO_RAD = M_PI / 180.0;
 
-	vec2 initial_position = emitter.data.position + transform.position;
-	float random_angle = generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
+	vec2 initial_position = emitter.data.offset + transform.position;
+	float random_angle
+		= this->generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
 
-	float random_speed = generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
+	float random_speed
+		= this->generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
 	float angle_radians = random_angle * DEG_TO_RAD;
 
 	vec2 velocity
 		= {random_speed * std::cos(angle_radians), random_speed * std::sin(angle_radians)};
 
-	for (Particle & particle : emitter.data.particles) {
+	for (Particle & particle : emitter.particles) {
 		if (!particle.active) {
 			particle.reset(emitter.data.end_lifespan, initial_position, velocity,
 						   random_angle);
@@ -61,66 +68,54 @@ void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform &
 	}
 }
 
-int ParticleSystem::calculate_update(int count, double emission) const {
-	double integer_part = std::floor(emission);
-	double fractional_part = emission - integer_part;
-
-	if (fractional_part > 0) {
-		int denominator = static_cast<int>(1.0 / fractional_part);
-		return (count % denominator == 0) ? 1 : 0;
-	}
-
-	return static_cast<int>(emission);
-}
-
 void ParticleSystem::check_bounds(ParticleEmitter & emitter, const Transform & transform) {
-	vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.position;
-	double half_width = emitter.data.boundary.width / 2.0;
-	double half_height = emitter.data.boundary.height / 2.0;
+	vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.offset;
+	float half_width = emitter.data.boundary.width / 2.0;
+	float half_height = emitter.data.boundary.height / 2.0;
 
-	const double LEFT = offset.x - half_width;
-	const double RIGHT = offset.x + half_width;
-	const double TOP = offset.y - half_height;
-	const double BOTTOM = offset.y + half_height;
+	float left = offset.x - half_width;
+	float right = offset.x + half_width;
+	float top = offset.y - half_height;
+	float bottom = offset.y + half_height;
 
-	for (Particle & particle : emitter.data.particles) {
+	for (Particle & particle : emitter.particles) {
 		const vec2 & position = particle.position;
-		bool within_bounds = (position.x >= LEFT && position.x <= RIGHT && position.y >= TOP
-							  && position.y <= BOTTOM);
-
+		bool within_bounds = (position.x >= left && position.x <= right && position.y >= top
+							  && position.y <= bottom);
+		//if not within bounds do a reset or stop velocity
 		if (!within_bounds) {
 			if (emitter.data.boundary.reset_on_exit) {
 				particle.active = false;
 			} else {
 				particle.velocity = {0, 0};
-				if (position.x < LEFT) particle.position.x = LEFT;
-				else if (position.x > RIGHT) particle.position.x = RIGHT;
-				if (position.y < TOP) particle.position.y = TOP;
-				else if (position.y > BOTTOM) particle.position.y = BOTTOM;
+				if (position.x < left) particle.position.x = left;
+				else if (position.x > right) particle.position.x = right;
+				if (position.y < top) particle.position.y = top;
+				else if (position.y > bottom) particle.position.y = bottom;
 			}
 		}
 	}
 }
 
-double ParticleSystem::generate_random_angle(double min_angle, double max_angle) const {
+float ParticleSystem::generate_random_angle(float min_angle, float max_angle) const {
 	if (min_angle == max_angle) {
 		return min_angle;
 	} else if (min_angle < max_angle) {
 		return min_angle
-			   + static_cast<double>(std::rand() % static_cast<int>(max_angle - min_angle));
+			   + static_cast<float>(std::rand() % static_cast<int>(max_angle - min_angle));
 	} else {
-		double angle_offset = (360 - min_angle) + max_angle;
-		double random_angle
-			= min_angle + static_cast<double>(std::rand() % static_cast<int>(angle_offset));
+		float angle_offset = (360 - min_angle) + max_angle;
+		float random_angle
+			= min_angle + static_cast<float>(std::rand() % static_cast<int>(angle_offset));
 		return (random_angle >= 360) ? random_angle - 360 : random_angle;
 	}
 }
 
-double ParticleSystem::generate_random_speed(double min_speed, double max_speed) const {
+float ParticleSystem::generate_random_speed(float min_speed, float max_speed) const {
 	if (min_speed == max_speed) {
 		return min_speed;
 	} else {
 		return min_speed
-			   + static_cast<double>(std::rand() % static_cast<int>(max_speed - min_speed));
+			   + static_cast<float>(std::rand() % static_cast<int>(max_speed - min_speed));
 	}
 }
diff --git a/src/crepe/system/ParticleSystem.h b/src/crepe/system/ParticleSystem.h
index 6c631ea..4296ff3 100644
--- a/src/crepe/system/ParticleSystem.h
+++ b/src/crepe/system/ParticleSystem.h
@@ -20,7 +20,7 @@ public:
 	 * \brief Updates all particle emitters by emitting particles, updating particle states, and
 	 * checking bounds.
 	 */
-	void frame_update() override;
+	void fixed_update() override;
 
 private:
 	/**
@@ -32,16 +32,6 @@ private:
 	void emit_particle(ParticleEmitter & emitter, const Transform & transform);
 
 	/**
-	 * \brief Calculates the number of times particles should be emitted based on emission rate
-	 * and update count.
-	 *
-	 * \param count Current update count.
-	 * \param emission Emission rate.
-	 * \return The number of particles to emit.
-	 */
-	int calculate_update(int count, double emission) const;
-
-	/**
 	 * \brief Checks whether particles are within the emitter’s boundary, resets or stops
 	 * particles if they exit.
 	 *
@@ -57,7 +47,7 @@ private:
 	 * \param max_angle Maximum emission angle in degrees.
 	 * \return Random angle in degrees.
 	 */
-	double generate_random_angle(double min_angle, double max_angle) const;
+	float generate_random_angle(float min_angle, float max_angle) const;
 
 	/**
 	 * \brief Generates a random speed for particle emission within the specified range.
@@ -66,15 +56,7 @@ private:
 	 * \param max_speed Maximum emission speed.
 	 * \return Random speed.
 	 */
-	double generate_random_speed(double min_speed, double max_speed) const;
-
-private:
-	//! Counter to count updates to determine how many times emit_particle is
-	// called.
-	unsigned int update_count = 0;
-	//! Determines the lowest amount of emission rate (1000 = 0.001 = 1 particle per 1000
-	// updates).
-	static constexpr unsigned int MAX_UPDATE_COUNT = 100;
+	float generate_random_speed(float min_speed, float max_speed) const;
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index 607bbab..c403f6c 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -83,11 +83,11 @@ bool RenderSystem::render_particle(const Sprite & sprite, const double & scale)
 	bool rendering_particles = false;
 
 	for (const ParticleEmitter & em : emitters) {
-		if (&em.data.sprite != &sprite) continue;
+		if (&em.sprite != &sprite) continue;
 		rendering_particles = true;
 		if (!em.active) continue;
 
-		for (const Particle & p : em.data.particles) {
+		for (const Particle & p : em.particles) {
 			if (!p.active) continue;
 
 			ctx.draw(SDLContext::RenderContext{