Merge branch 'master' of https://github.com/lonkaars/crepe into wouter/inputSystem

28 files changed, 547 insertions, 749 deletions

diff --git a/src/crepe/api/AI.cpp b/src/crepe/api/AI.cpp
new file mode 100644
index 0000000..2195249
--- /dev/null
+++ b/src/crepe/api/AI.cpp
@@ -0,0 +1,89 @@
+#include <stdexcept>
+#include <type_traits>
+
+#include "AI.h"
+#include "types.h"
+
+namespace crepe {
+
+AI::AI(game_object_id_t id, float max_force) : Component(id), max_force(max_force) {}
+
+void AI::make_circle_path(float radius, const vec2 & center, float start_angle,
+						  bool clockwise) {
+	if (radius <= 0) {
+		throw std::runtime_error("Radius must be greater than 0");
+	}
+
+	// The step size is determined by the radius (step size is in radians)
+	float step = RADIUS_TO_STEP / radius;
+	// Force at least MIN_STEP steps (in case of a small radius)
+	if (step > 2 * M_PI / MIN_STEP) {
+		step = 2 * M_PI / MIN_STEP;
+	}
+	// The path node distance is determined by the step size and the radius
+	this->path_node_distance = radius * step * PATH_NODE_DISTANCE_FACTOR;
+
+	if (clockwise) {
+		for (float i = start_angle; i < 2 * M_PI + start_angle; i += step) {
+			path.push_back(vec2{static_cast<float>(center.x + radius * cos(i)),
+								static_cast<float>(center.y + radius * sin(i))});
+		}
+	} else {
+		for (float i = start_angle; i > start_angle - 2 * M_PI; i -= step) {
+			path.push_back(vec2{static_cast<float>(center.x + radius * cos(i)),
+								static_cast<float>(center.y + radius * sin(i))});
+		}
+	}
+}
+
+void AI::make_oval_path(float radius_x, float radius_y, const vec2 & center, float start_angle,
+						bool clockwise, float rotation) {
+	if (radius_x <= 0 && radius_y <= 0) {
+		throw std::runtime_error("Radius must be greater than 0");
+	}
+
+	float max_radius = std::max(radius_x, radius_y);
+	// The step size is determined by the radius (step size is in radians)
+	float step = RADIUS_TO_STEP / max_radius;
+	// Force at least MIN_STEP steps (in case of a small radius)
+	if (step > 2 * M_PI / MIN_STEP) {
+		step = 2 * M_PI / MIN_STEP;
+	}
+	// The path node distance is determined by the step size and the radius
+	this->path_node_distance = max_radius * step * PATH_NODE_DISTANCE_FACTOR;
+
+	std::function<vec2(vec2, vec2)> rotate_point = [rotation](vec2 point, vec2 center) {
+		float s = sin(rotation);
+		float c = cos(rotation);
+
+		// Translate point back to origin
+		point.x -= center.x;
+		point.y -= center.y;
+
+		// Rotate point
+		float xnew = point.x * c - point.y * s;
+		float ynew = point.x * s + point.y * c;
+
+		// Translate point back
+		point.x = xnew + center.x;
+		point.y = ynew + center.y;
+
+		return point;
+	};
+
+	if (clockwise) {
+		for (float i = start_angle; i < 2 * M_PI + start_angle; i += step) {
+			vec2 point = {static_cast<float>(center.x + radius_x * cos(i)),
+						  static_cast<float>(center.y + radius_y * sin(i))};
+			path.push_back(rotate_point(point, center));
+		}
+	} else {
+		for (float i = start_angle; i > start_angle - 2 * M_PI; i -= step) {
+			vec2 point = {static_cast<float>(center.x + radius_x * cos(i)),
+						  static_cast<float>(center.y + radius_y * sin(i))};
+			path.push_back(rotate_point(point, center));
+		}
+	}
+}
+
+} // namespace crepe
diff --git a/src/crepe/api/AI.h b/src/crepe/api/AI.h
new file mode 100644
index 0000000..c780a91
--- /dev/null
+++ b/src/crepe/api/AI.h
@@ -0,0 +1,128 @@
+#pragma once
+
+#include "Component.h"
+#include "types.h"
+
+namespace crepe {
+
+/**
+ * \brief The AI component is used to control the movement of an entity using AI.
+ *
+ * The AI component can be used to control the movement of an entity. The AI component can be used
+ * to implement different behaviors such as seeking, fleeing, arriving, and path following.
+ */
+class AI : public Component {
+public:
+	//! The different types of behaviors that can be used
+	enum BehaviorTypeMask {
+		SEEK = 0x00002,
+		FLEE = 0x00004,
+		ARRIVE = 0x00008,
+		PATH_FOLLOW = 0x00010,
+	};
+
+public:
+	/**
+	 * \param id The id of the game object
+	 * \param max_force The maximum force that can be applied to the entity
+	 */
+	AI(game_object_id_t id, float max_force);
+
+	/**
+	 * \brief Check if a behavior is on (aka activated)
+	 *
+	 * \param behavior The behavior to check
+	 * \return true if the behavior is on, false otherwise
+	 */
+	bool on(BehaviorTypeMask behavior) const { return (flags & behavior); }
+	//! Turn on the seek behavior
+	void seek_on() { flags |= SEEK; }
+	//! Turn off the seek behavior
+	void seek_off() { flags &= ~SEEK; }
+	//! Turn on the flee behavior
+	void flee_on() { flags |= FLEE; }
+	//! Turn off the flee behavior
+	void flee_off() { flags &= ~FLEE; }
+	//! Turn on the arrive behavior
+	void arrive_on() { flags |= ARRIVE; }
+	//! Turn off the arrive behavior
+	void arrive_off() { flags &= ~ARRIVE; }
+	//! Turn on the path follow behavior
+	void path_follow_on() { flags |= PATH_FOLLOW; }
+	//! Turn off the path follow behavior
+	void path_follow_off() { flags &= ~PATH_FOLLOW; }
+
+	/**
+	 * \brief Add a path node (for the path following behavior)
+	 *
+	 * \note The path is not relative to the entity's position (it is an absolute path)
+	 *
+	 * \param node The path node to add
+	 */
+	void add_path_node(const vec2 & node) { path.push_back(node); }
+	/**
+	 * \brief Make a circle path (for the path following behavior)
+	 *
+	 * \note The path is not relative to the entity's position (it is an absolute path)
+	 *
+	 * \param radius The radius of the circle (in game units)
+	 * \param center The center of the circle (in game units)
+	 * \param start_angle The start angle of the circle (in radians)
+	 * \param clockwise The direction of the circle
+	 */
+	void make_circle_path(float radius, const vec2 & center = {0, 0}, float start_angle = 0,
+						  bool clockwise = true);
+	/**
+	 * \brief Make an oval path (for the path following behavior)
+	 *
+	 * \note The path is not relative to the entity's position (it is an absolute path)
+	 *
+	 * \param radius_x The x radius of the oval (in game units)
+	 * \param radius_y The y radius of the oval (in game units)
+	 * \param center The center of the oval (in game units)
+	 * \param start_angle The start angle of the oval (in radians)
+	 * \param clockwise The direction of the oval
+	 * \param rotation The rotation of the oval (in radians)
+	 */
+	void make_oval_path(float radius_x, float radius_y, const vec2 & center = {0, 0},
+						float start_angle = 0, bool clockwise = true, float rotation = 0);
+
+public:
+	//! The maximum force that can be applied to the entity (higher values will make the entity adjust faster)
+	float max_force;
+
+	//! The target to seek at
+	vec2 seek_target;
+	//! The target to arrive at
+	vec2 arrive_target;
+	//! The target to flee from
+	vec2 flee_target;
+	//! The distance at which the entity will start to flee from the target
+	float square_flee_panic_distance = 200.0f * 200.0f;
+	//! The deceleration rate for the arrive behavior (higher values will make the entity decelerate faster (less overshoot))
+	float arrive_deceleration = 40.0f;
+	//! The path to follow (for the path following behavior)
+	std::vector<vec2> path;
+	//! The distance from the path node at which the entity will move to the next node (automatically set by make_circle_path())
+	float path_node_distance = 400.0f;
+	//! Looping behavior for the path
+	bool path_loop = true;
+
+private:
+	//! The flags for the behaviors
+	int flags = 0;
+	//! The current path index
+	size_t path_index = 0;
+
+	//! The AISystem is the only class that should access the flags and path_index variables
+	friend class AISystem;
+
+	//! The minimum amount of steps for the path following behavior
+	static constexpr int MIN_STEP = 16;
+	//! The radius to step size ratio for the path following behavior
+	static constexpr float RADIUS_TO_STEP = 400.0f;
+	//! The path node distance factor for the path following behavior
+	static constexpr float PATH_NODE_DISTANCE_FACTOR = 0.75f;
+};
+
+} // namespace crepe
diff --git a/src/crepe/api/Animator.cpp b/src/crepe/api/Animator.cpp
index b8a91dc..4ce4bf0 100644
--- a/src/crepe/api/Animator.cpp
+++ b/src/crepe/api/Animator.cpp
@@ -7,23 +7,21 @@
 
 using namespace crepe;
 
-Animator::Animator(game_object_id_t id, Sprite & spritesheet, unsigned int max_row,
-				   unsigned int max_col, const Animator::Data & data)
+Animator::Animator(game_object_id_t id, Sprite & spritesheet, const ivec2 & single_frame_size,
+				   const uvec2 & grid_size, const Animator::Data & data)
 	: Component(id),
 	  spritesheet(spritesheet),
-	  max_rows(max_row),
-	  max_columns(max_col),
+	  grid_size(grid_size),
 	  data(data) {
 	dbg_trace();
 
-	this->spritesheet.mask.h /= this->max_columns;
-	this->spritesheet.mask.w /= this->max_rows;
-	this->spritesheet.mask.x = this->data.row * this->spritesheet.mask.w;
-	this->spritesheet.mask.y = this->data.col * this->spritesheet.mask.h;
+	this->spritesheet.mask.w = single_frame_size.x;
+	this->spritesheet.mask.h = single_frame_size.y;
+	this->spritesheet.mask.x = 0;
+	this->spritesheet.mask.y = 0;
 
-	// need to do this for to get the aspect ratio for a single clipping in the spritesheet
 	this->spritesheet.aspect_ratio
-		= static_cast<double>(this->spritesheet.mask.w) / this->spritesheet.mask.h;
+		= static_cast<float>(single_frame_size.x) / single_frame_size.y;
 }
 
 Animator::~Animator() { dbg_trace(); }
@@ -54,6 +52,6 @@ void Animator::set_anim(int col) {
 
 void Animator::next_anim() {
 	Animator::Data & ctx = this->data;
-	ctx.row = ctx.row++ % this->max_rows;
+	ctx.row = ctx.row++ % this->grid_size.x;
 	this->spritesheet.mask.x = ctx.row * this->spritesheet.mask.w;
 }
diff --git a/src/crepe/api/Animator.h b/src/crepe/api/Animator.h
index 7c850b8..5918800 100644
--- a/src/crepe/api/Animator.h
+++ b/src/crepe/api/Animator.h
@@ -75,27 +75,28 @@ public:
 	 *
 	 * \param id The unique identifier for the component, typically assigned automatically.
 	 * \param spritesheet the reference to the spritesheet
-	 * \param max_row maximum of rows inside the given spritesheet
-	 * \param max_col maximum of columns inside the given spritesheet
+	 * \param single_frame_size the width and height in pixels of a single frame inside the
+	 * spritesheet
+	 * \param grid_size the max rows and columns inside the given spritesheet
 	 * \param data extra animation data for more control
 	 *
 	 * This constructor sets up the Animator with the given parameters, and initializes the
 	 * animation system.
 	 */
-	Animator(game_object_id_t id, Sprite & spritesheet, unsigned int max_row,
-			 unsigned int max_col, const Animator::Data & data);
+	Animator(game_object_id_t id, Sprite & spritesheet, const ivec2 & single_frame_size,
+			 const uvec2 & grid_size, const Animator::Data & data);
 	~Animator(); // dbg_trace
 
 public:
-	//! The maximum number of columns in the sprite sheet.
-	const unsigned int max_columns;
-	//! The maximum number of rows in the sprite sheet.
-	const unsigned int max_rows;
 	Animator::Data data;
 
 private:
 	//! A reference to the Sprite sheet containing.
 	Sprite & spritesheet;
+
+	//! The maximum number of rows and columns inside the spritesheet
+	const uvec2 grid_size;
+
 	//! Uses the spritesheet
 	friend AnimatorSystem;
 };
diff --git a/src/crepe/api/AssetManager.cpp b/src/crepe/api/AssetManager.cpp
deleted file mode 100644
index 3925758..0000000
--- a/src/crepe/api/AssetManager.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-#include "util/Log.h"
-
-#include "AssetManager.h"
-
-using namespace crepe;
-
-AssetManager & AssetManager::get_instance() {
-	static AssetManager instance;
-	return instance;
-}
-
-AssetManager::~AssetManager() {
-	dbg_trace();
-	this->asset_cache.clear();
-}
-
-AssetManager::AssetManager() { dbg_trace(); }
diff --git a/src/crepe/api/AssetManager.h b/src/crepe/api/AssetManager.h
deleted file mode 100644
index 3b1cc4b..0000000
--- a/src/crepe/api/AssetManager.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-
-#include <any>
-#include <memory>
-#include <string>
-#include <unordered_map>
-
-namespace crepe {
-
-/**
- * \brief The AssetManager is responsible for storing and managing assets over multiple scenes.
- *
- * The AssetManager ensures that assets are loaded once and can be accessed across different
- * scenes. It caches assets to avoid reloading them every time a scene is loaded. Assets are
- * retained in memory until the AssetManager is destroyed, at which point the cached assets are
- * cleared.
- */
-class AssetManager {
-
-private:
-	//! A cache that holds all the assets, accessible by their file path, over multiple scenes.
-	std::unordered_map<std::string, std::any> asset_cache;
-
-private:
-	AssetManager();
-	virtual ~AssetManager();
-
-public:
-	AssetManager(const AssetManager &) = delete;
-	AssetManager(AssetManager &&) = delete;
-	AssetManager & operator=(const AssetManager &) = delete;
-	AssetManager & operator=(AssetManager &&) = delete;
-
-	/**
-	 * \brief Retrieves the singleton instance of the AssetManager.
-	 *
-	 * \return A reference to the single instance of the AssetManager.
-	 */
-	static AssetManager & get_instance();
-
-public:
-	/**
-	 * \brief Caches an asset by loading it from the given file path.
-	 *
-	 * \param file_path The path to the asset file to load.
-	 * \param reload If true, the asset will be reloaded from the file, even if it is already
-	 * cached.
-	 * \tparam T The type of asset to cache (e.g., texture, sound, etc.).
-	 *
-	 * \return A shared pointer to the cached asset.
-	 *
-	 * This template function caches the asset at the given file path. If the asset is already
-	 * cached and `reload` is false, the existing cached version will be returned. Otherwise, the
-	 * asset will be reloaded and added to the cache.
-	 */
-	template <typename T>
-	std::shared_ptr<T> cache(const std::string & file_path, bool reload = false);
-};
-
-} // namespace crepe
-
-#include "AssetManager.hpp"
diff --git a/src/crepe/api/AssetManager.hpp b/src/crepe/api/AssetManager.hpp
deleted file mode 100644
index 1c0e978..0000000
--- a/src/crepe/api/AssetManager.hpp
+++ /dev/null
@@ -1,22 +0,0 @@
-#pragma once
-
-#include "AssetManager.h"
-
-namespace crepe {
-
-template <typename asset>
-std::shared_ptr<asset> AssetManager::cache(const std::string & file_path, bool reload) {
-	auto it = asset_cache.find(file_path);
-
-	if (!reload && it != asset_cache.end()) {
-		return std::any_cast<std::shared_ptr<asset>>(it->second);
-	}
-
-	std::shared_ptr<asset> new_asset = std::make_shared<asset>(file_path.c_str());
-
-	asset_cache[file_path] = new_asset;
-
-	return new_asset;
-}
-
-} // namespace crepe
diff --git a/src/crepe/api/AudioSource.cpp b/src/crepe/api/AudioSource.cpp
new file mode 100644
index 0000000..7b05cb1
--- /dev/null
+++ b/src/crepe/api/AudioSource.cpp
@@ -0,0 +1,15 @@
+#include "AudioSource.h"
+
+using namespace crepe;
+using namespace std;
+
+AudioSource::AudioSource(game_object_id_t id, const Asset & src)
+	: Component(id),
+	  source(src) {}
+
+void AudioSource::play(bool looping) {
+	this->loop = looping;
+	this->oneshot_play = true;
+}
+
+void AudioSource::stop() { this->oneshot_stop = true; }
diff --git a/src/crepe/api/AudioSource.h b/src/crepe/api/AudioSource.h
new file mode 100644
index 0000000..b20e490
--- /dev/null
+++ b/src/crepe/api/AudioSource.h
@@ -0,0 +1,74 @@
+#pragma once
+
+#include "../Component.h"
+#include "../facade/SoundHandle.h"
+#include "../types.h"
+
+#include "Asset.h"
+#include "GameObject.h"
+
+namespace crepe {
+
+class AudioSystem;
+
+//! Audio source component
+class AudioSource : public Component {
+	//! AudioSource components are handled by AudioSystem
+	friend class AudioSystem;
+
+protected:
+	/**
+	 * \param source Sound sample to load
+	 */
+	AudioSource(game_object_id_t id, const Asset & source);
+	//! Only ComponentManager creates components
+	friend class ComponentManager;
+
+public:
+	// std::unique_ptr needs to be able to destoy this component
+	virtual ~AudioSource() = default;
+
+public:
+	//! Start this audio source
+	void play(bool looping = false);
+	//! Stop this audio source
+	void stop();
+
+public:
+	//! Play when this component becomes active
+	bool play_on_awake = false;
+	//! Repeat the current audio clip during playback
+	bool loop = false;
+	//! Normalized volume (0.0 - 1.0)
+	float volume = 1.0;
+
+private:
+	//! This audio source's clip
+	const Asset source;
+
+	/**
+	 * \name One-shot state variables
+	 *
+	 * These variables trigger function calls when set to true, and are unconditionally reset on
+	 * every system update.
+	 *
+	 * \{
+	 */
+	//! Play this sample
+	bool oneshot_play = false;
+	//! Stop this sample
+	bool oneshot_stop = false;
+	//! \}
+	/**
+	 * \name State diffing variables
+	 * \{
+	 */
+	typeof(active) last_active = false;
+	typeof(volume) last_volume = volume;
+	typeof(loop) last_loop = loop;
+	//! \}
+	//! This source's voice handle
+	SoundHandle voice{};
+};
+
+} // namespace crepe
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt
index 593c4e6..fb11c8d 100644
--- a/src/crepe/api/CMakeLists.txt
+++ b/src/crepe/api/CMakeLists.txt
@@ -1,13 +1,11 @@
 target_sources(crepe PUBLIC
-	# AudioSource.cpp
+	AudioSource.cpp
 	BehaviorScript.cpp
 	GameObject.cpp
 	Rigidbody.cpp
 	ParticleEmitter.cpp
 	Transform.cpp
 	Color.cpp
-	Texture.cpp
-	AssetManager.cpp
 	Sprite.cpp
 	Config.cpp
 	Metadata.cpp
@@ -15,19 +13,17 @@ target_sources(crepe PUBLIC
 	Animator.cpp
 	BoxCollider.cpp
 	CircleCollider.cpp
-	IKeyListener.cpp
-	IMouseListener.cpp
 	LoopManager.cpp
-	LoopTimer.cpp
 	Asset.cpp
 	EventHandler.cpp
 	Script.cpp
 	Button.cpp
 	UIObject.cpp
+	AI.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
-	# AudioSource.h
+	AudioSource.h
 	BehaviorScript.h
 	Config.h
 	Script.h
@@ -39,9 +35,6 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	Vector2.h
 	Vector2.hpp
 	Color.h
-	Texture.h
-	AssetManager.h
-	AssetManager.hpp
 	Scene.h
 	Metadata.h
 	Camera.h
@@ -51,11 +44,9 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	EventHandler.h
 	EventHandler.hpp
 	Event.h
-	IKeyListener.h
-	IMouseListener.h
 	LoopManager.h
-	LoopTimer.h
 	Asset.h
 	Button.h
 	UIObject.h
+	AI.h
 )
diff --git a/src/crepe/api/Config.h b/src/crepe/api/Config.h
index 324e639..925ded8 100644
--- a/src/crepe/api/Config.h
+++ b/src/crepe/api/Config.h
@@ -15,20 +15,10 @@ namespace crepe {
  * modified *before* execution is handed over from the game programmer to the engine (i.e. the
  * main loop is started).
  */
-class Config final {
-public:
+struct Config final {
 	//! Retrieve handle to global Config instance
 	static Config & get_instance();
 
-private:
-	Config() = default;
-	~Config() = default;
-	Config(const Config &) = default;
-	Config(Config &&) = default;
-	Config & operator=(const Config &) = default;
-	Config & operator=(Config &&) = default;
-
-public:
 	//! Logging-related settings
 	struct {
 		/**
@@ -91,6 +81,12 @@ public:
 		//! 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 {
+		//! Max amount of simultanious voices
+		unsigned int voices = 32;
+	} audio;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/IKeyListener.cpp b/src/crepe/api/IKeyListener.cpp
deleted file mode 100644
index 8642655..0000000
--- a/src/crepe/api/IKeyListener.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "IKeyListener.h"
-
-using namespace crepe;
-
-// Constructor with specified channel
-IKeyListener::IKeyListener(event_channel_t channel)
-	: event_manager(EventManager::get_instance()) {
-	this->press_id = event_manager.subscribe<KeyPressEvent>(
-		[this](const KeyPressEvent & event) { return this->on_key_pressed(event); }, channel);
-	this->release_id = event_manager.subscribe<KeyReleaseEvent>(
-		[this](const KeyReleaseEvent & event) { return this->on_key_released(event); },
-		channel);
-}
-
-// Destructor, unsubscribe events
-IKeyListener::~IKeyListener() {
-	event_manager.unsubscribe(this->press_id);
-	event_manager.unsubscribe(this->release_id);
-}
diff --git a/src/crepe/api/IKeyListener.h b/src/crepe/api/IKeyListener.h
deleted file mode 100644
index 180a0a6..0000000
--- a/src/crepe/api/IKeyListener.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#pragma once
-
-#include "../manager/EventManager.h"
-
-#include "Event.h"
-#include "EventHandler.h"
-
-namespace crepe {
-
-/**
- * \class IKeyListener
- * \brief Interface for keyboard event handling in the application.
- */
-class IKeyListener {
-public:
-	/**
-	 * \brief Constructs an IKeyListener with a specified channel.
-	 * \param channel The channel ID for event handling.
-	 */
-	IKeyListener(event_channel_t channel = EventManager::CHANNEL_ALL);
-	virtual ~IKeyListener();
-	IKeyListener(const IKeyListener &) = delete;
-	IKeyListener & operator=(const IKeyListener &) = delete;
-	IKeyListener & operator=(IKeyListener &&) = delete;
-	IKeyListener(IKeyListener &&) = delete;
-
-	/**
-	 * \brief Pure virtual function to handle key press events.
-	 * \param event The key press event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_key_pressed(const KeyPressEvent & event) = 0;
-
-	/**
-	 * \brief Pure virtual function to handle key release events.
-	 * \param event The key release event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_key_released(const KeyReleaseEvent & event) = 0;
-
-private:
-	//! Key press event id
-	subscription_t press_id = -1;
-	//! Key release event id
-	subscription_t release_id = -1;
-	//! EventManager reference
-	EventManager & event_manager;
-};
-
-} // namespace crepe
diff --git a/src/crepe/api/IMouseListener.cpp b/src/crepe/api/IMouseListener.cpp
deleted file mode 100644
index 989aeb3..0000000
--- a/src/crepe/api/IMouseListener.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "IMouseListener.h"
-
-using namespace crepe;
-
-IMouseListener::IMouseListener(event_channel_t channel)
-	: event_manager(EventManager::get_instance()) {
-	this->click_id = event_manager.subscribe<MouseClickEvent>(
-		[this](const MouseClickEvent & event) { return this->on_mouse_clicked(event); },
-		channel);
-
-	this->press_id = event_manager.subscribe<MousePressEvent>(
-		[this](const MousePressEvent & event) { return this->on_mouse_pressed(event); },
-		channel);
-
-	this->release_id = event_manager.subscribe<MouseReleaseEvent>(
-		[this](const MouseReleaseEvent & event) { return this->on_mouse_released(event); },
-		channel);
-
-	this->move_id = event_manager.subscribe<MouseMoveEvent>(
-		[this](const MouseMoveEvent & event) { return this->on_mouse_moved(event); }, channel);
-}
-
-IMouseListener::~IMouseListener() {
-	// Unsubscribe event handlers
-	event_manager.unsubscribe(this->click_id);
-	event_manager.unsubscribe(this->press_id);
-	event_manager.unsubscribe(this->release_id);
-	event_manager.unsubscribe(this->move_id);
-}
diff --git a/src/crepe/api/IMouseListener.h b/src/crepe/api/IMouseListener.h
deleted file mode 100644
index e19897d..0000000
--- a/src/crepe/api/IMouseListener.h
+++ /dev/null
@@ -1,73 +0,0 @@
-#pragma once
-
-#include "../manager/EventManager.h"
-
-#include "Event.h"
-#include "EventHandler.h"
-
-namespace crepe {
-
-/**
- * \class IMouseListener
- * \brief Interface for mouse event handling in the application.
- */
-class IMouseListener {
-public:
-	/**
-	 * \brief Constructs an IMouseListener with a specified channel.
-	 * \param channel The channel ID for event handling.
-	 */
-	IMouseListener(event_channel_t channel = EventManager::CHANNEL_ALL);
-	virtual ~IMouseListener();
-	IMouseListener & operator=(const IMouseListener &) = delete;
-	IMouseListener(const IMouseListener &) = delete;
-	IMouseListener & operator=(const IMouseListener &&) = delete;
-	IMouseListener(IMouseListener &&) = delete;
-
-	/**
-	 * \brief Move assignment operator (deleted).
-	 */
-	IMouseListener & operator=(IMouseListener &&) = delete;
-
-	/**
-	 * \brief Handles a mouse click event.
-	 * \param event The mouse click event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_mouse_clicked(const MouseClickEvent & event) = 0;
-
-	/**
-	 * \brief Handles a mouse press event.
-	 * \param event The mouse press event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_mouse_pressed(const MousePressEvent & event) = 0;
-
-	/**
-	 * \brief Handles a mouse release event.
-	 * \param event The mouse release event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_mouse_released(const MouseReleaseEvent & event) = 0;
-
-	/**
-	 * \brief Handles a mouse move event.
-	 * \param event The mouse move event to handle.
-	 * \return True if the event was handled, false otherwise.
-	 */
-	virtual bool on_mouse_moved(const MouseMoveEvent & event) = 0;
-
-private:
-	//! Mouse click event id
-	subscription_t click_id = -1;
-	//! Mouse press event id
-	subscription_t press_id = -1;
-	//! Mouse release event id
-	subscription_t release_id = -1;
-	//! Mouse move event id
-	subscription_t move_id = -1;
-	//! EventManager reference
-	EventManager & event_manager;
-};
-
-} //namespace crepe
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
index 88243c4..b5e5ff7 100644
--- a/src/crepe/api/LoopManager.cpp
+++ b/src/crepe/api/LoopManager.cpp
@@ -1,11 +1,16 @@
+#include "../facade/SDLContext.h"
+#include "../manager/EventManager.h"
+#include "../manager/LoopTimerManager.h"
+#include "../system/AISystem.h"
 #include "../system/AnimatorSystem.h"
+#include "../system/AudioSystem.h"
 #include "../system/CollisionSystem.h"
 #include "../system/InputSystem.h"
 #include "../system/ParticleSystem.h"
 #include "../system/PhysicsSystem.h"
 #include "../system/RenderSystem.h"
 #include "../system/ScriptSystem.h"
-#include "manager/EventManager.h"
+#include "../util/Log.h"
 
 #include "LoopManager.h"
 
@@ -20,58 +25,62 @@ LoopManager::LoopManager() {
 	this->load_system<RenderSystem>();
 	this->load_system<ScriptSystem>();
 	this->load_system<InputSystem>();
+	this->event_manager.subscribe<ShutDownEvent>(
+		[this](const ShutDownEvent & event) { return this->on_shutdown(event); });
+	this->load_system<AudioSystem>();
+	this->load_system<AISystem>();
 }
-
-void LoopManager::process_input() { this->get_system<InputSystem>().update(); }
-
 void LoopManager::start() {
 	this->setup();
 	this->loop();
 }
-void LoopManager::set_running(bool running) { this->game_running = running; }
 
-void LoopManager::fixed_update() {
-	// TODO: retrieve EventManager from direct member after singleton refactor
-	EventManager & ev = this->mediator.event_manager;
-	ev.dispatch_events();
-	this->get_system<ScriptSystem>().update();
-	this->get_system<PhysicsSystem>().update();
-	this->get_system<CollisionSystem>().update();
+void LoopManager::setup() {
+	this->game_running = true;
+	this->loop_timer.start();
+	this->scene_manager.load_next_scene();
 }
 
 void LoopManager::loop() {
-	LoopTimer & timer = this->loop_timer;
-	timer.start();
+	try {
+		while (game_running) {
+			this->loop_timer.update();
 
-	while (game_running) {
-		timer.update();
+			while (this->loop_timer.get_lag() >= this->loop_timer.get_fixed_delta_time()) {
+				this->fixed_update();
+				this->loop_timer.advance_fixed_elapsed_time();
+			}
 
-		while (timer.get_lag() >= timer.get_fixed_delta_time()) {
-			this->process_input();
-			this->fixed_update();
-			timer.advance_fixed_update();
+			this->frame_update();
+			this->loop_timer.enforce_frame_rate();
 		}
-
-		this->update();
-		this->render();
-
-		timer.enforce_frame_rate();
+	} catch (const exception & e) {
+		Log::logf(Log::Level::ERROR, "Exception caught in main loop: {}", e.what());
+		this->event_manager.trigger_event<ShutDownEvent>(ShutDownEvent{});
 	}
 }
 
-void LoopManager::setup() {
-	LoopTimer & timer = this->loop_timer;
-	this->game_running = true;
-	this->scene_manager.load_next_scene();
-	timer.start();
-	timer.set_fps(200);
+// will be called at a fixed interval
+void LoopManager::fixed_update() {
+	this->get_system<InputSystem>().update();
+	this->event_manager.dispatch_events();
+	this->get_system<ScriptSystem>().update();
+	this->get_system<AISystem>().update();
+	this->get_system<PhysicsSystem>().update();
+	this->get_system<CollisionSystem>().update();
+	this->get_system<AudioSystem>().update();
 }
 
-void LoopManager::render() {
-	if (!this->game_running) return;
-
+// will be called every frame
+void LoopManager::frame_update() {
+	this->scene_manager.load_next_scene();
 	this->get_system<AnimatorSystem>().update();
+	//render
 	this->get_system<RenderSystem>().update();
 }
 
-void LoopManager::update() {}
+bool LoopManager::on_shutdown(const ShutDownEvent & e) {
+	this->game_running = false;
+	// propagate to possible user ShutDownEvent listeners
+	return false;
+}
diff --git a/src/crepe/api/LoopManager.h b/src/crepe/api/LoopManager.h
index d8910a0..2915315 100644
--- a/src/crepe/api/LoopManager.h
+++ b/src/crepe/api/LoopManager.h
@@ -4,13 +4,16 @@
 
 #include "../facade/SDLContext.h"
 #include "../manager/ComponentManager.h"
+#include "../manager/EventManager.h"
+#include "../manager/LoopTimerManager.h"
+#include "../manager/Mediator.h"
+#include "../manager/ResourceManager.h"
+#include "../manager/SaveManager.h"
 #include "../manager/SceneManager.h"
 #include "../system/System.h"
 
-#include "LoopTimer.h"
 
 namespace crepe {
-
 /**
  * \brief Main game loop manager
  *
@@ -18,8 +21,14 @@ namespace crepe {
  */
 class LoopManager {
 public:
-	void start();
 	LoopManager();
+	/**
+	 * \brief Start the gameloop
+	 *
+	 * This is the start of the engine where the setup is called and then the loop keeps running until the game stops running.
+	 * The Game programmer needs to call this function to run the game. This should be done after creating and adding all scenes.
+	 */
+	void start();
 
 	/**
 	 * \brief Add a new concrete scene to the scene manager
@@ -44,47 +53,20 @@ private:
 	void loop();
 
 	/**
-	 * \brief Function for handling input-related system calls.
-	 *
-	 * Processes user inputs from keyboard and mouse.
-	 */
-	void process_input();
-
-	/**
 	 * \brief Per-frame update.
 	 *
 	 * Updates the game state based on the elapsed time since the last frame.
 	 */
-	void update();
-
-	/**
-	 * \brief Late update which is called after update().
-	 *
-	 * This function can be used for final adjustments before rendering.
-	 */
-	void late_update();
+	virtual void frame_update();
 
 	/**
 	 * \brief Fixed update executed at a fixed rate.
 	 *
 	 * This function updates physics and game logic based on LoopTimer's fixed_delta_time.
 	 */
-	void fixed_update();
-
-	/**
-	 * \brief Set game running variable
-	 *
-	 * \param running running (false = game shutdown, true = game running)
-	 */
-	void set_running(bool running);
-
-	/**
-	 * \brief Function for executing render-related systems.
-	 *
-	 * Renders the current state of the game to the screen.
-	 */
-	void render();
+	virtual void fixed_update();
 
+	//! Indicates whether the game is running.
 	bool game_running = false;
 
 private:
@@ -95,18 +77,29 @@ private:
 	ComponentManager component_manager{mediator};
 	//! Scene manager instance
 	SceneManager scene_manager{mediator};
-
-	//! SDL context \todo no more singletons!
-	SDLContext & sdl_context = SDLContext::get_instance();
-	//! Loop timer \todo no more singletons!
-	LoopTimer & loop_timer = LoopTimer::get_instance();
+	//! LoopTimerManager instance
+	LoopTimerManager loop_timer{mediator};
+	//! EventManager instance
+	EventManager event_manager{mediator};
+	//! Resource manager instance
+	ResourceManager resource_manager{mediator};
+	//! Save manager instance
+	SaveManager save_manager{mediator};
+	//! SDLContext instance
+	SDLContext sdl_context{mediator};
 
 private:
 	/**
+	 * \brief Callback function for ShutDownEvent
+	 *
+	 * This function sets the game_running variable to false, stopping the gameloop and therefor quitting the game.
+	 */
+	bool on_shutdown(const ShutDownEvent & e);
+	/**
 	 * \brief Collection of System instances
 	 *
 	 * This map holds System instances indexed by the system's class typeid. It is filled in the
-	 * constructor of \c LoopManager using LoopManager::load_system.
+	 * constructor of LoopManager using LoopManager::load_system.
 	 */
 	std::unordered_map<std::type_index, std::unique_ptr<System>> systems;
 	/**
diff --git a/src/crepe/api/LoopTimer.cpp b/src/crepe/api/LoopTimer.cpp
deleted file mode 100644
index 15a0e3a..0000000
--- a/src/crepe/api/LoopTimer.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-#include <chrono>
-
-#include "../facade/SDLContext.h"
-#include "../util/Log.h"
-
-#include "LoopTimer.h"
-
-using namespace crepe;
-
-LoopTimer::LoopTimer() { dbg_trace(); }
-
-LoopTimer & LoopTimer::get_instance() {
-	static LoopTimer instance;
-	return instance;
-}
-
-void LoopTimer::start() {
-	this->last_frame_time = std::chrono::steady_clock::now();
-	this->elapsed_time = std::chrono::milliseconds(0);
-	this->elapsed_fixed_time = std::chrono::milliseconds(0);
-	this->delta_time = std::chrono::milliseconds(0);
-}
-
-void LoopTimer::update() {
-	auto current_frame_time = std::chrono::steady_clock::now();
-	// Convert to duration in seconds for delta time
-	this->delta_time = std::chrono::duration_cast<std::chrono::duration<double>>(
-		current_frame_time - last_frame_time);
-
-	if (this->delta_time > this->maximum_delta_time) {
-		this->delta_time = this->maximum_delta_time;
-	}
-
-	this->delta_time *= this->game_scale;
-	this->elapsed_time += this->delta_time;
-	this->last_frame_time = current_frame_time;
-}
-
-double LoopTimer::get_delta_time() const { return this->delta_time.count(); }
-
-double LoopTimer::get_current_time() const { return this->elapsed_time.count(); }
-
-void LoopTimer::advance_fixed_update() { this->elapsed_fixed_time += this->fixed_delta_time; }
-
-double LoopTimer::get_fixed_delta_time() const { return this->fixed_delta_time.count(); }
-
-void LoopTimer::set_fps(int fps) {
-	this->fps = fps;
-	// target time per frame in seconds
-	this->frame_target_time = std::chrono::duration<double>(1.0) / fps;
-}
-
-int LoopTimer::get_fps() const { return this->fps; }
-
-void LoopTimer::set_game_scale(double value) { this->game_scale = value; }
-
-double LoopTimer::get_game_scale() const { return this->game_scale; }
-void LoopTimer::enforce_frame_rate() {
-	std::chrono::steady_clock::time_point current_frame_time
-		= std::chrono::steady_clock::now();
-	std::chrono::milliseconds frame_duration
-		= std::chrono::duration_cast<std::chrono::milliseconds>(current_frame_time
-																- this->last_frame_time);
-
-	if (frame_duration < this->frame_target_time) {
-		std::chrono::milliseconds delay_time
-			= std::chrono::duration_cast<std::chrono::milliseconds>(this->frame_target_time
-																	- frame_duration);
-		if (delay_time.count() > 0) {
-			SDLContext::get_instance().delay(delay_time.count());
-		}
-	}
-
-	this->last_frame_time = current_frame_time;
-}
-
-double LoopTimer::get_lag() const {
-	return (this->elapsed_time - this->elapsed_fixed_time).count();
-}
diff --git a/src/crepe/api/LoopTimer.h b/src/crepe/api/LoopTimer.h
deleted file mode 100644
index 9393439..0000000
--- a/src/crepe/api/LoopTimer.h
+++ /dev/null
@@ -1,144 +0,0 @@
-#pragma once
-
-#include <chrono>
-
-namespace crepe {
-
-class LoopTimer {
-public:
-	/**
-	 * \brief Get the singleton instance of LoopTimer.
-	 *
-	 * \return A reference to the LoopTimer instance.
-	 */
-	static LoopTimer & get_instance();
-
-	/**
-	 * \brief Get the current delta time for the current frame.
-	 *
-	 * \return Delta time in seconds since the last frame.
-	 */
-	double get_delta_time() const;
-
-	/**
-	 * \brief Get the current game time.
-	 *
-	 * \note The current game time may vary from real-world elapsed time. It is the cumulative
-	 * sum of each frame's delta time.
-	 *
-	 * \return Elapsed game time in seconds.
-	 */
-	double get_current_time() const;
-
-	/**
-	 * \brief Set the target frames per second (FPS).
-	 *
-	 * \param fps The desired frames rendered per second.
-	 */
-	void set_fps(int fps);
-
-	/**
-	 * \brief Get the current frames per second (FPS).
-	 *
-	 * \return Current FPS.
-	 */
-	int get_fps() const;
-
-	/**
-	 * \brief Get the current game scale.
-	 *
-	 * \return The current game scale, where 0 = paused, 1 = normal speed, and values > 1 speed
-	 * up the game.
-	 */
-	double get_game_scale() const;
-
-	/**
-	 * \brief Set the game scale.
-	 *
-	 * \param game_scale The desired game scale (0 = pause, 1 = normal speed, > 1 = speed up).
-	 */
-	void set_game_scale(double game_scale);
-
-private:
-	friend class LoopManager;
-
-	/**
-	 * \brief Start the loop timer.
-	 *
-	 * Initializes the timer to begin tracking frame times.
-	 */
-	void start();
-
-	/**
-	 * \brief Enforce the frame rate limit.
-	 *
-	 * Ensures that the game loop does not exceed the target FPS by delaying frame updates as
-	 * necessary.
-	 */
-	void enforce_frame_rate();
-
-	/**
-	 * \brief Get the fixed delta time for consistent updates.
-	 *
-	 * Fixed delta time is used for operations that require uniform time steps, such as physics
-	 * calculations.
-	 *
-	 * \return Fixed delta time in seconds.
-	 */
-	double get_fixed_delta_time() const;
-
-	/**
-	 * \brief Get the accumulated lag in the game loop.
-	 *
-	 * Lag represents the difference between the target frame time and the actual frame time,
-	 * useful for managing fixed update intervals.
-	 *
-	 * \return Accumulated lag in seconds.
-	 */
-	double get_lag() const;
-
-	/**
-	 * \brief Construct a new LoopTimer object.
-	 *
-	 * Private constructor for singleton pattern to restrict instantiation outside the class.
-	 */
-	LoopTimer();
-
-	/**
-	 * \brief Update the timer to the current frame.
-	 *
-	 * Calculates and updates the delta time for the current frame and adds it to the cumulative
-	 * game time.
-	 */
-	void update();
-
-	/**
-	 * \brief Advance the game loop by a fixed update interval.
-	 *
-	 * This method progresses the game state by a consistent, fixed time step, allowing for
-	 * stable updates independent of frame rate fluctuations.
-	 */
-	void advance_fixed_update();
-
-private:
-	//! Current frames per second
-	int fps = 50;
-	//! Current game scale
-	double game_scale = 1;
-	//! Maximum delta time in seconds to avoid large jumps
-	std::chrono::duration<double> maximum_delta_time{0.25};
-	//! Delta time for the current frame in seconds
-	std::chrono::duration<double> delta_time{0.0};
-	//! Target time per frame in seconds
-	std::chrono::duration<double> frame_target_time = std::chrono::duration<double>(1.0) / fps;
-	//! Fixed delta time for fixed updates in seconds
-	std::chrono::duration<double> fixed_delta_time = std::chrono::duration<double>(1.0) / 50.0;
-	//! Total elapsed game time in seconds
-	std::chrono::duration<double> elapsed_time{0.0};
-	//! Total elapsed time for fixed updates in seconds
-	std::chrono::duration<double> elapsed_fixed_time{0.0};
-	//! Time of the last frame
-	std::chrono::steady_clock::time_point last_frame_time;
-};
-
-} // namespace crepe
diff --git a/src/crepe/api/Script.cpp b/src/crepe/api/Script.cpp
index 4091fd4..753a9e3 100644
--- a/src/crepe/api/Script.cpp
+++ b/src/crepe/api/Script.cpp
@@ -8,8 +8,7 @@ using namespace crepe;
 using namespace std;
 
 Script::~Script() {
-	Mediator & mediator = this->mediator;
-	EventManager & mgr = mediator.event_manager;
+	EventManager & mgr = this->mediator->event_manager;
 	for (auto id : this->listeners) {
 		mgr.unsubscribe(id);
 	}
@@ -21,7 +20,8 @@ void Script::subscribe(const EventHandler<CollisionEvent> & callback) {
 }
 
 void Script::set_next_scene(const string & name) {
-	Mediator & mediator = this->mediator;
-	SceneManager & mgr = mediator.scene_manager;
+	SceneManager & mgr = this->mediator->scene_manager;
 	mgr.set_next_scene(name);
 }
+
+SaveManager & Script::get_save_manager() const { return this->mediator->save_manager; }
diff --git a/src/crepe/api/Script.h b/src/crepe/api/Script.h
index d99ab0e..668e5d1 100644
--- a/src/crepe/api/Script.h
+++ b/src/crepe/api/Script.h
@@ -86,6 +86,25 @@ protected:
 	RefVector<T> get_components() const;
 
 	/**
+	 * \copydoc ComponentManager::get_components_by_id
+	 * \see ComponentManager::get_components_by_id
+	 */
+	template <typename T>
+	RefVector<T> get_components_by_id(game_object_id_t id) const;
+	/**
+	 * \copydoc ComponentManager::get_components_by_name
+	 * \see ComponentManager::get_components_by_name
+	 */
+	template <typename T>
+	RefVector<T> get_components_by_name(const std::string & name) const;
+	/**
+	 * \copydoc ComponentManager::get_components_by_tag
+	 * \see ComponentManager::get_components_by_tag
+	 */
+	template <typename T>
+	RefVector<T> get_components_by_tag(const std::string & tag) const;
+
+	/**
 	 * \brief Log a message using Log::logf
 	 *
 	 * \tparam Args Log::logf parameters
@@ -113,6 +132,9 @@ protected:
 	 */
 	void set_next_scene(const std::string & name);
 
+	//! Retrieve SaveManager reference
+	SaveManager & get_save_manager() const;
+
 	//! \}
 
 private:
diff --git a/src/crepe/api/Script.hpp b/src/crepe/api/Script.hpp
index 45f1ff1..225a51c 100644
--- a/src/crepe/api/Script.hpp
+++ b/src/crepe/api/Script.hpp
@@ -20,10 +20,7 @@ T & Script::get_component() const {
 
 template <typename T>
 RefVector<T> Script::get_components() const {
-	Mediator & mediator = this->mediator;
-	ComponentManager & mgr = mediator.component_manager;
-
-	return mgr.get_components_by_id<T>(this->game_object_id);
+	return this->get_components_by_id<T>(this->game_object_id);
 }
 
 template <typename... Args>
@@ -34,8 +31,7 @@ void Script::logf(Args &&... args) {
 template <typename EventType>
 void Script::subscribe_internal(const EventHandler<EventType> & callback,
 								event_channel_t channel) {
-	Mediator & mediator = this->mediator;
-	EventManager & mgr = mediator.event_manager;
+	EventManager & mgr = this->mediator->event_manager;
 	subscription_t listener = mgr.subscribe<EventType>(
 		[this, callback](const EventType & data) -> bool {
 			bool & active = this->active;
@@ -56,4 +52,26 @@ void Script::subscribe(const EventHandler<EventType> & callback) {
 	this->subscribe_internal(callback, EventManager::CHANNEL_ALL);
 }
 
+template <typename T>
+RefVector<T> Script::get_components_by_id(game_object_id_t id) const {
+	Mediator & mediator = this->mediator;
+	ComponentManager & mgr = mediator.component_manager;
+
+	return mgr.get_components_by_id<T>(id);
+}
+template <typename T>
+RefVector<T> Script::get_components_by_name(const std::string & name) const {
+	Mediator & mediator = this->mediator;
+	ComponentManager & mgr = mediator.component_manager;
+
+	return mgr.get_components_by_name<T>(name);
+}
+template <typename T>
+RefVector<T> Script::get_components_by_tag(const std::string & tag) const {
+	Mediator & mediator = this->mediator;
+	ComponentManager & mgr = mediator.component_manager;
+
+	return mgr.get_components_by_tag<T>(tag);
+}
+
 } // namespace crepe
diff --git a/src/crepe/api/Sprite.cpp b/src/crepe/api/Sprite.cpp
index cc0e20a..ba684ba 100644
--- a/src/crepe/api/Sprite.cpp
+++ b/src/crepe/api/Sprite.cpp
@@ -1,26 +1,21 @@
 #include <cmath>
-#include <utility>
 
 #include "../util/Log.h"
+#include "api/Asset.h"
 
 #include "Component.h"
 #include "Sprite.h"
-#include "Texture.h"
 #include "types.h"
 
 using namespace std;
 using namespace crepe;
 
-Sprite::Sprite(game_object_id_t id, Texture & texture, const Sprite::Data & data)
+Sprite::Sprite(game_object_id_t id, const Asset & texture, const Sprite::Data & data)
 	: Component(id),
-	  texture(std::move(texture)),
+	  source(texture),
 	  data(data) {
 
 	dbg_trace();
-
-	this->mask.w = this->texture.get_size().x;
-	this->mask.h = this->texture.get_size().y;
-	this->aspect_ratio = static_cast<double>(this->mask.w) / this->mask.h;
 }
 
 Sprite::~Sprite() { dbg_trace(); }
diff --git a/src/crepe/api/Sprite.h b/src/crepe/api/Sprite.h
index dbf41e4..a2409c2 100644
--- a/src/crepe/api/Sprite.h
+++ b/src/crepe/api/Sprite.h
@@ -1,9 +1,9 @@
 #pragma once
 
 #include "../Component.h"
+#include "api/Asset.h"
 
 #include "Color.h"
-#include "Texture.h"
 #include "types.h"
 
 namespace crepe {
@@ -74,24 +74,15 @@ public:
 	 * \param texture asset of the image
 	 * \param ctx all the sprite data
 	 */
-	Sprite(game_object_id_t id, Texture & texture, const Data & data);
+	Sprite(game_object_id_t id, const Asset & texture, const Data & data);
 	~Sprite();
 
 	//! Texture used for the sprite
-	const Texture texture;
+	const Asset source;
 
 	Data data;
 
 private:
-	/**
-	 * \brief ratio of the img
-	 *
-	 * - This will multiply one of \c size variable if it is 0.
-	 * - Will be adjusted if \c Animator component is added to an GameObject that is why this
-	 *   value cannot be const.
-	 */
-	float aspect_ratio;
-
 	//! Reads the mask of sprite
 	friend class SDLContext;
 
@@ -101,6 +92,14 @@ private:
 	//! Reads the all the variables plus the  mask
 	friend class AnimatorSystem;
 
+	/**
+	 * \aspect_ratio the ratio of the sprite image
+	 *
+	 * - this value will only be set by the \c Animator component for the ratio of the Animation
+	 * - if \c Animator component is not added it will not use this ratio (because 0) and will use aspect_ratio of the Asset.
+	 */
+	float aspect_ratio = 0;
+
 	struct Rect {
 		int w = 0;
 		int h = 0;
diff --git a/src/crepe/api/Texture.cpp b/src/crepe/api/Texture.cpp
deleted file mode 100644
index 2b56271..0000000
--- a/src/crepe/api/Texture.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-#include "../facade/SDLContext.h"
-#include "../util/Log.h"
-
-#include "Asset.h"
-#include "Texture.h"
-#include "types.h"
-
-using namespace crepe;
-using namespace std;
-
-Texture::Texture(const Asset & src) {
-	dbg_trace();
-	this->load(src);
-}
-
-Texture::~Texture() {
-	dbg_trace();
-	this->texture.reset();
-}
-
-Texture::Texture(Texture && other) noexcept : texture(std::move(other.texture)) {}
-
-Texture & Texture::operator=(Texture && other) noexcept {
-	if (this != &other) {
-		texture = std::move(other.texture);
-	}
-	return *this;
-}
-
-void Texture::load(const Asset & res) {
-	SDLContext & ctx = SDLContext::get_instance();
-	this->texture = ctx.texture_from_path(res.get_path());
-}
-
-ivec2 Texture::get_size() const {
-	if (this->texture == nullptr) return {};
-	return SDLContext::get_instance().get_size(*this);
-}
diff --git a/src/crepe/api/Texture.h b/src/crepe/api/Texture.h
deleted file mode 100644
index 1817910..0000000
--- a/src/crepe/api/Texture.h
+++ /dev/null
@@ -1,69 +0,0 @@
-#pragma once
-
-// FIXME: this header can't be included because this is an API header, and SDL2 development
-// headers won't be bundled with crepe. Why is this facade in the API namespace?
-
-#include <SDL2/SDL_render.h>
-#include <functional>
-#include <memory>
-
-#include "Asset.h"
-#include "types.h"
-
-namespace crepe {
-
-class SDLContext;
-class Animator;
-
-/**
- * \class Texture
- * \brief Manages texture loading and properties.
- *
- * The Texture class is responsible for loading an image from a source and providing access to
- * its dimensions. Textures can be used for rendering.
- */
-class Texture {
-
-public:
-	/**
-	 * \brief Constructs a Texture from an Asset resource.
-	 * \param src Asset with texture data to load.
-	 */
-	Texture(const Asset & src);
-
-	/**
-	 * \brief Destroys the Texture instance, freeing associated resources.
-	 */
-	~Texture();
-	// FIXME: this constructor shouldn't be necessary because this class doesn't manage memory
-
-	Texture(Texture && other) noexcept;
-	Texture & operator=(Texture && other) noexcept;
-	Texture(const Texture &) = delete;
-	Texture & operator=(const Texture &) = delete;
-
-	/**
-	 * \brief Gets the width and height of the texture.
-	 * \return Width and height of the texture in pixels.
-	 */
-	ivec2 get_size() const;
-
-private:
-	/**
-	 * \brief Loads the texture from an Asset resource.
-	 * \param res Unique pointer to an Asset resource to load the texture from.
-	 */
-	void load(const Asset & res);
-
-private:
-	//! The texture of the class from the library
-	std::unique_ptr<SDL_Texture, std::function<void(SDL_Texture *)>> texture;
-
-	//! Grants SDLContext access to private members.
-	friend class SDLContext;
-
-	//! Grants Animator access to private members.
-	friend class Animator;
-};
-
-} // namespace crepe
diff --git a/src/crepe/api/Vector2.h b/src/crepe/api/Vector2.h
index c278c87..bf9d124 100644
--- a/src/crepe/api/Vector2.h
+++ b/src/crepe/api/Vector2.h
@@ -66,6 +66,30 @@ struct Vector2 {
 
 	//! Checks if this vector is not equal to another vector.
 	bool operator!=(const Vector2<T> & other) const;
+
+	//! Truncates the vector to a maximum length.
+	void truncate(T max);
+
+	//! Normalizes the vector (resulting in vector with a length of 1).
+	void normalize();
+
+	//! Returns the length of the vector.
+	T length() const;
+
+	//! Returns the squared length of the vector.
+	T length_squared() const;
+
+	//! Returns the dot product (inwendig product) of this vector and another vector.
+	T dot(const Vector2<T> & other) const;
+
+	//! Returns the distance between this vector and another vector.
+	T distance(const Vector2<T> & other) const;
+
+	//! Returns the squared distance between this vector and another vector.
+	T distance_squared(const Vector2<T> & other) const;
+
+	//! Returns the perpendicular vector to this vector.
+	Vector2 perpendicular() const;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/Vector2.hpp b/src/crepe/api/Vector2.hpp
index cad15f8..ff53cb0 100644
--- a/src/crepe/api/Vector2.hpp
+++ b/src/crepe/api/Vector2.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cmath>
+
 #include "Vector2.h"
 
 namespace crepe {
@@ -115,4 +117,50 @@ bool Vector2<T>::operator!=(const Vector2<T> & other) const {
 	return !(*this == other);
 }
 
+template <class T>
+void Vector2<T>::truncate(T max) {
+	if (length() > max) {
+		normalize();
+		*this *= max;
+	}
+}
+
+template <class T>
+void Vector2<T>::normalize() {
+	T len = length();
+	if (len > 0) {
+		*this /= len;
+	}
+}
+
+template <class T>
+T Vector2<T>::length() const {
+	return std::sqrt(x * x + y * y);
+}
+
+template <class T>
+T Vector2<T>::length_squared() const {
+	return x * x + y * y;
+}
+
+template <class T>
+T Vector2<T>::dot(const Vector2<T> & other) const {
+	return x * other.x + y * other.y;
+}
+
+template <class T>
+T Vector2<T>::distance(const Vector2<T> & other) const {
+	return (*this - other).length();
+}
+
+template <class T>
+T Vector2<T>::distance_squared(const Vector2<T> & other) const {
+	return (*this - other).length_squared();
+}
+
+template <class T>
+Vector2<T> Vector2<T>::perpendicular() const {
+	return {-y, x};
+}
+
 } // namespace crepe