diff --git a/source/Game.cpp b/source/Game.cpp
index 33783e6..50e60ea 100644
--- a/source/Game.cpp
+++ b/source/Game.cpp
@@ -7,11 +7,12 @@
 
 #include "Game.h"
 
+#include <string>
+
 #include <Thor/Graphics.hpp>
 
 #include "abstract/Character.h"
-#include "sprites/Enemy.h"
-#include "types/String.h"
+#include "sprites/Enemy.h"
 #include "util/Loader.h"
 #include "util/ResourceManager.h"
 
@@ -23,7 +24,7 @@ const int Game::FPS_GOAL = 60;
  */
 Game::Game(sf::RenderWindow& window) :
 		mWindow(window),
-		mView(Vector2f(0, 0), mWindow.getView().getSize()),
+		mView(sf::Vector2f(0, 0), mWindow.getView().getSize()),
 		mTileManager(mWorld),
 		mQuit(false),
 		mPaused(false) {
@@ -50,10 +51,10 @@ Game::generate() {
 		mTileManager.setTile(TileManager::TilePosition(x, 4), TileManager::Type::WALL);
 
 	mWorld.insert(std::shared_ptr<Sprite>(new Enemy(mWorld, mPathfinder,
-			Vector2f(400.0f, 200.0f), Yaml("enemy.yaml"))));
+			sf::Vector2f(400.0f, 200.0f), Yaml("enemy.yaml"))));
 
 	mPlayer = std::shared_ptr<Player>(new Player(mWorld, mPathfinder,
-			Vector2f(200.0f, 100.0f), Yaml("player.yaml")));
+			sf::Vector2f(200.0f, 100.0f), Yaml("player.yaml")));
 	mWorld.insert(mPlayer);
 }
 /**
@@ -172,7 +173,7 @@ Game::keyDown(const sf::Event& event) {
  */
 sf::Vector2<float>
 Game::convertCoordinates(int x, int y) {
-	return mWindow.convertCoords(Vector2i(x, y), mView);
+	return mWindow.convertCoords(sf::Vector2i(x, y), mView);
 }
 
 /**
diff --git a/source/Game.h b/source/Game.h
index c8fd530..2cc3d47 100644
--- a/source/Game.h
+++ b/source/Game.h
@@ -8,6 +8,8 @@
 #ifndef DG_GAME_H_
 #define DG_GAME_H_
 
+#include <string>
+
 #include <SFML/System.hpp>
 #include <SFML/Graphics.hpp>
 
@@ -15,7 +17,6 @@
 
 #include "sprites/TileManager.h"
 #include "sprites/Player.h"
-#include "types/String.h"
 #include "World.h"
 #include "util/Pathfinder.h"
 
diff --git a/source/abstract/Body.cpp b/source/abstract/Body.cpp
index 8be5c53..def7944 100755
--- a/source/abstract/Body.cpp
+++ b/source/abstract/Body.cpp
@@ -11,15 +11,15 @@
 
 #include <Thor/Vectors.hpp>
 
-const String Body::KEY_SIZE = "size";
-const Vector2i Body::DEFAULT_SIZE = Vector2i(50, 50);
+const std::string Body::KEY_SIZE = "size";
+const sf::Vector2i Body::DEFAULT_SIZE = sf::Vector2i(50, 50);
 
 /**
  * Initializes Box2D body.
  *
  * @param data Data needed for construction.
  */
-Body::Body(const Data& data, const Yaml& config, const Vector2i& pSize) :
+Body::Body(const Data& data, const Yaml& config, const sf::Vector2i& pSize) :
 		mPosition(data.position),
 		mSize(config.get(KEY_SIZE, DEFAULT_SIZE)),
 		mAngle(0),
@@ -37,7 +37,7 @@ Body::~Body() {
 /**
  * Initializes container.
  */
-Body::Data::Data(const Vector2f& position, float angle,
+Body::Data::Data(const sf::Vector2f& position, float angle,
 		Category category, unsigned short maskExclude) :
 		position(position),
 		angle(angle),
@@ -48,7 +48,7 @@ Body::Data::Data(const Vector2f& position, float angle,
 /**
  * Returns the position of the sprite (center).
  */
-Vector2f
+sf::Vector2f
 Body::getPosition() const {
 	return mPosition;
 }
@@ -56,7 +56,7 @@ Body::getPosition() const {
 /**
  * Returns the movement speed of the body.
  */
-Vector2f
+sf::Vector2f
 Body::getSpeed() const {
 	return mSpeed;
 }
@@ -88,7 +88,7 @@ Body::getCategory() const {
 /**
  * Returns the size of the body as a vector.
  */
-Vector2i
+sf::Vector2i
 Body::getSize() const {
 	return mSize;
 }
@@ -131,8 +131,8 @@ Body::setDelete(bool value) {
  * @param speed The value of the movement speed to be used.
  */
 void
-Body::setSpeed(Vector2f direction, float speed) {
-	if (direction != Vector2f()) {
+Body::setSpeed(sf::Vector2f direction, float speed) {
+	if (direction != sf::Vector2f()) {
 		thor::setLength(direction, speed);
 	}
 	mSpeed = direction;
diff --git a/source/abstract/Body.h b/source/abstract/Body.h
index 00b69c6..f7fc375 100755
--- a/source/abstract/Body.h
+++ b/source/abstract/Body.h
@@ -8,8 +8,6 @@
 #ifndef DG_BODY_H_
 #define DG_BODY_H_
 
-#include "../types/String.h"
-#include "../types/Vector.h"
 #include "../util/Yaml.h"
 
 class Yaml;
@@ -42,8 +40,8 @@ public:
 	class Data {
 	public:
 		Data() = default;
-		Data(const Vector2f& position, float angle,	Category category, unsigned short maskExclude);
-		const Vector2f& position;
+		Data(const sf::Vector2f& position, float angle,	Category category, unsigned short maskExclude);
+		const sf::Vector2f& position;
 		float angle;
 		Category category;
 		unsigned short mask;
@@ -59,35 +57,35 @@ public:
 
 // Public functions.
 public:
-	Body(const Data& data, const Yaml& config, const Vector2i& pSize = Vector2i());
+	Body(const Data& data, const Yaml& config, const sf::Vector2i& pSize = sf::Vector2i());
 	virtual ~Body() = 0;
 
-	Vector2f getPosition() const;
-	Vector2f getSpeed() const;
+	sf::Vector2f getPosition() const;
+	sf::Vector2f getSpeed() const;
 	float getAngle() const;
 	bool getDelete() const;
 	Category getCategory() const;
-	Vector2i getSize() const;
+	sf::Vector2i getSize() const;
 
 	virtual bool doesCollide(Body& other);
 	virtual void onCollide(Body& other, Category category);
 
 // Public variables.
 public:
-	static const String KEY_SIZE;
-	static const Vector2i DEFAULT_SIZE;
+	static const std::string KEY_SIZE;
+	static const sf::Vector2i DEFAULT_SIZE;
 
 // Protected functions.
 protected:
 	void setDelete(bool value);
-	void setSpeed(Vector2f direction, float speed);
+	void setSpeed(sf::Vector2f direction, float speed);
 	void setAngle(float angle);
 
 // Private variables.
 private:
-	Vector2f mPosition;
-	Vector2i mSize;
-	Vector2f mSpeed;
+	sf::Vector2f mPosition;
+	sf::Vector2i mSize;
+	sf::Vector2f mSpeed;
 	float mAngle;
 	Category mCategory;
 	unsigned short mMask;
diff --git a/source/abstract/Character.cpp b/source/abstract/Character.cpp
index ca1f3bf..1f350ab 100644
--- a/source/abstract/Character.cpp
+++ b/source/abstract/Character.cpp
@@ -15,9 +15,9 @@
 #include "../sprites/Corpse.h"
 #include "../util/Log.h"
 
-const String Character::KEY_HEALTH = "health";
+const std::string Character::KEY_HEALTH = "health";
 const int Character::DEFAULT_HEALTH = 100;
-const String Character::KEY_SPEED = "speed";
+const std::string Character::KEY_SPEED = "speed";
 const float Character::DEFAULT_SPEED = 100;
 const float Character::POINT_REACHED_DISTANCE = 1.0f;
 std::vector<Character*> Character::mCharacterInstances = std::vector<Character*>();
@@ -116,7 +116,7 @@ Character::fire() {
  * @return True if a path was found.
  */
 bool
-Character::setDestination(const Vector2f& destination) {
+Character::setDestination(const sf::Vector2f& destination) {
 	mPath = mPathfinder.getPath(*this, destination);
 	// Make sure we found a path.
 	if (mPath.empty()) {
@@ -146,7 +146,7 @@ Character::move() {
 			}
 			else {
 				LOG_I("Reached destination.");
-				setSpeed(Vector2f(), 0);
+				setSpeed(sf::Vector2f(), 0);
 			}
 		}
 	}
diff --git a/source/abstract/Character.h b/source/abstract/Character.h
index 0c08b69..0bddb52 100644
--- a/source/abstract/Character.h
+++ b/source/abstract/Character.h
@@ -8,12 +8,12 @@
 #ifndef DG_ACTOR_H_
 #define DG_ACTOR_H_
 
+#include <string>
 #include <vector>
 
 #include "Sprite.h"
 #include "../World.h"
 #include "../items/Weapon.h"
-#include "../types/String.h"
 #include "../util/Pathfinder.h"
 #include "../util/Yaml.h"
 
@@ -44,14 +44,14 @@ protected:
 	virtual void onDeath();
 	float getMovementSpeed() const;
 	void fire();
-	bool setDestination(const Vector2f& destination);
+	bool setDestination(const sf::Vector2f& destination);
 	void move();
 
 // Private variables.
 private:
-	static const String KEY_HEALTH;
+	static const std::string KEY_HEALTH;
 	static const int DEFAULT_HEALTH;
-	static const String KEY_SPEED;
+	static const std::string KEY_SPEED;
 	static const float DEFAULT_SPEED;
 	/// The distance to a point where it is considered reached.
 	static const float POINT_REACHED_DISTANCE;
@@ -65,7 +65,7 @@ private:
 	int mCurrentHealth; //< Current health. Between 0 and mMaxHealth.
 	const float mMovementSpeed;
 	Weapon mWeapon;
-	std::vector<Vector2f> mPath; //< Contains nodes to reach a set destination.
+	std::vector<sf::Vector2f> mPath; //< Contains nodes to reach a set destination.
 	bool mStartPathfinding; //< True if a movement destination was just set.
 };
 
diff --git a/source/abstract/Sprite.cpp b/source/abstract/Sprite.cpp
index ac7a2bc..71b1545 100644
--- a/source/abstract/Sprite.cpp
+++ b/source/abstract/Sprite.cpp
@@ -11,18 +11,18 @@
 #include "../util/ResourceManager.h"
 #include "../util/Log.h"
 
-const String Sprite::KEY_TEXTURE = "texture";
-const String Sprite::DEFAULT_TEXTURE = "";
+const std::string Sprite::KEY_TEXTURE = "texture";
+const std::string Sprite::DEFAULT_TEXTURE = "";
 
 /**
  * Loads sprite from ResourceManager, sets world position.
  *
  * @param texturePath Relative path to the texture file in the resource folder.
  */
-Sprite::Sprite(const Yaml& config, const Data& data, const Vector2i& size) :
+Sprite::Sprite(const Yaml& config, const Data& data, const sf::Vector2i& size) :
 		Body(data, config, size),
-		mSize(Vector2i(getSize())) {
-	String texture = config.get(KEY_TEXTURE, DEFAULT_TEXTURE);
+		mSize(sf::Vector2i(getSize())) {
+	std::string texture = config.get(KEY_TEXTURE, DEFAULT_TEXTURE);
 	if (texture == "") {
 		LOG_E("Failed to read texture from YAML file " << config.getFilename());
 	}
@@ -42,10 +42,10 @@ Sprite::~Sprite() {
 void
 Sprite::draw(sf::RenderTarget& target, sf::RenderStates states) const {
 	// Create a temporary shape to apply box2d body transformations to.
-	sf::RectangleShape shape = sf::RectangleShape(Vector2f(mSize));
+	sf::RectangleShape shape = sf::RectangleShape(sf::Vector2f(mSize));
 	shape.setTexture(&*mTexture, true);
-	shape.setOrigin(Vector2f(mSize.x / 2, mSize.y / 2));
-	shape.setTextureRect(sf::IntRect(Vector2i(0, 0), mSize));
+	shape.setOrigin(sf::Vector2f(mSize.x / 2, mSize.y / 2));
+	shape.setTextureRect(sf::IntRect(sf::Vector2i(0, 0), mSize));
 
 	shape.setPosition(getPosition());
 	shape.setRotation(getAngle());
diff --git a/source/abstract/Sprite.h b/source/abstract/Sprite.h
index 2a2736c..afdae73 100644
--- a/source/abstract/Sprite.h
+++ b/source/abstract/Sprite.h
@@ -13,8 +13,7 @@
 #include <Thor/Resources.hpp>
 
 #include "Body.h"
-#include "../types/String.h"
-#include "../types/Vector.h"
+#include <string>
 #include "../util/Yaml.h"
 
 class Body;
@@ -28,7 +27,7 @@ class Yaml;
 class Sprite : public sf::Drawable, public Body {
 // Public functions.
 public:
-	Sprite(const Yaml& config, const Data& data, const Vector2i& size = Vector2i());
+	Sprite(const Yaml& config, const Data& data, const sf::Vector2i& size = sf::Vector2i());
 	Sprite(const std::shared_ptr<sf::Texture>& texture, const Data& data);
 	virtual ~Sprite() = 0;
 
@@ -38,11 +37,11 @@ protected:
 
 // Private variables.
 private:
-	static const String KEY_TEXTURE;
-	static const String DEFAULT_TEXTURE;
+	static const std::string KEY_TEXTURE;
+	static const std::string DEFAULT_TEXTURE;
 
 	std::shared_ptr<sf::Texture> mTexture;
-	Vector2i mSize;
+	sf::Vector2i mSize;
 };
 
 #endif /* DG_SPRITE_H_ */
diff --git a/source/effects/Bullet.cpp b/source/effects/Bullet.cpp
index 8d8ba8f..4c71534 100755
--- a/source/effects/Bullet.cpp
+++ b/source/effects/Bullet.cpp
@@ -13,9 +13,9 @@
 #include "../util/Loader.h"
 #include "../util/ResourceManager.h"
 
-const String Bullet::KEY_DAMAGE = "damage";
+const std::string Bullet::KEY_DAMAGE = "damage";
 const int Bullet::DEFAULT_DAMAGE = 10;
-const String Bullet::KEY_SPEED = "speed";
+const std::string Bullet::KEY_SPEED = "speed";
 const float Bullet::DEFAULT_SPEED = 500;
 
 /**
@@ -25,13 +25,13 @@ const float Bullet::DEFAULT_SPEED = 500;
  * @param world Box2d world.
  * @param texture Texture to display for bullet.
  */
-Bullet::Bullet(const Vector2f& position, Body& shooter, float direction,
+Bullet::Bullet(const sf::Vector2f& position, Body& shooter, float direction,
 	const Yaml& config) :
 		Particle(config, Data(position, 0, CATEGORY_PARTICLE, CATEGORY_PARTICLE)),
 		mShooter(shooter),
 		mDamage(config.get(KEY_DAMAGE, DEFAULT_DAMAGE)),
 		mSpeed(config.get(KEY_SPEED, DEFAULT_SPEED)) {
-	Vector2f dir(1.0f, 0);
+	sf::Vector2f dir(1.0f, 0);
 	thor::setPolarAngle(dir, direction);
 	setSpeed(dir, mSpeed);
 	setAngle(direction);
diff --git a/source/effects/Bullet.h b/source/effects/Bullet.h
index 5bf1c2f..c59ae3b 100755
--- a/source/effects/Bullet.h
+++ b/source/effects/Bullet.h
@@ -8,8 +8,9 @@
 #ifndef DG_BULLET_H_
 #define DG_BULLET_H_
 
+#include <string>
+
 #include "../particle/Particle.h"
-#include "../types/String.h"
 #include "../util/Yaml.h"
 
 class Particle;
@@ -21,7 +22,7 @@ class Yaml;
 class Bullet : public Particle {
 // Public functions.
 public:
-	Bullet(const Vector2f& position, Body& shooter, float direction,
+	Bullet(const sf::Vector2f& position, Body& shooter, float direction,
 			const Yaml& config);
 
 	void onCollide(Body& other, Category category);
@@ -29,9 +30,9 @@ public:
 
 // Private variables.
 private:
-	static const String KEY_DAMAGE;
+	static const std::string KEY_DAMAGE;
 	static const int DEFAULT_DAMAGE;
-	static const String KEY_SPEED;
+	static const std::string KEY_SPEED;
 	static const float DEFAULT_SPEED;
 
 	Body& mShooter;
diff --git a/source/items/Weapon.cpp b/source/items/Weapon.cpp
index 88affdd..42bdc6f 100755
--- a/source/items/Weapon.cpp
+++ b/source/items/Weapon.cpp
@@ -14,9 +14,9 @@
 #include "../World.h"
 #include "../effects/Bullet.h"
 
-const String Weapon::KEY_BULLET = "bullet";
-const String Weapon::DEFAULT_BULLET = "bullet.yaml";
-const String Weapon::KEY_INTERVAL = "interval";
+const std::string Weapon::KEY_BULLET = "bullet";
+const std::string Weapon::DEFAULT_BULLET = "bullet.yaml";
+const std::string Weapon::KEY_INTERVAL = "interval";
 const int Weapon::DEFAULT_INTERVAL = 250;
 
 Weapon::Weapon(World& world, Body& holder, const Yaml& config) :
@@ -25,10 +25,10 @@ Weapon::Weapon(World& world, Body& holder, const Yaml& config) :
 		mHolder(holder),
 		mBullet(config.get(KEY_BULLET, DEFAULT_BULLET)),
 		mTimer(sf::milliseconds(config.get(KEY_INTERVAL, DEFAULT_INTERVAL))) {
-	Vector2i holderSize = mHolder.getSize();
+	sf::Vector2i holderSize = mHolder.getSize();
 	Yaml bullet(mBullet);
-	Vector2i bulletSize = bullet.get(Body::KEY_SIZE, Vector2i());
-	mOffset = Vector2f(0,
+	sf::Vector2i bulletSize = bullet.get(Body::KEY_SIZE, sf::Vector2i());
+	mOffset = sf::Vector2f(0,
 			std::max(holderSize.x, holderSize.y) / 2 +
 			std::max(bulletSize.x, bulletSize.y) / 2);
 }
@@ -48,7 +48,7 @@ Weapon::fire() {
 std::shared_ptr<Particle>
 Weapon::createParticle() {
 	// Minus to account for positive y-axis going downwards in SFML.
-	Vector2f offset(- mOffset);
+	sf::Vector2f offset(- mOffset);
 	thor::rotate(offset, mHolder.getAngle());
 	return std::shared_ptr<Particle>(new Bullet(mHolder.getPosition() + offset,
 			mHolder, mHolder.getAngle(), Yaml(mBullet)));
diff --git a/source/items/Weapon.h b/source/items/Weapon.h
index 4021ae6..b884396 100755
--- a/source/items/Weapon.h
+++ b/source/items/Weapon.h
@@ -39,16 +39,16 @@ protected:
 
 // Private variables.
 private:
-	static const String KEY_BULLET;
-	static const String DEFAULT_BULLET;
-	static const String KEY_INTERVAL;
+	static const std::string KEY_BULLET;
+	static const std::string DEFAULT_BULLET;
+	static const std::string KEY_INTERVAL;
 	static const int DEFAULT_INTERVAL;
 
 	World& mWorld;
 	Body& mHolder;
 
-	Vector2f mOffset; //< Offset to the point where bullets are inserted (from holder center).
-	const String mBullet;
+	sf::Vector2f mOffset; //< Offset to the point where bullets are inserted (from holder center).
+	const std::string mBullet;
 	Timer mTimer;
 
 };
diff --git a/source/sprites/Corpse.cpp b/source/sprites/Corpse.cpp
index 05ea2f8..47f1b37 100644
--- a/source/sprites/Corpse.cpp
+++ b/source/sprites/Corpse.cpp
@@ -7,7 +7,7 @@
 
 #include "Corpse.h"
 
-Corpse::Corpse(const Vector2f& position, const Yaml& config) :
+Corpse::Corpse(const sf::Vector2f& position, const Yaml& config) :
 		Sprite(config, Data(position, 0, CATEGORY_NONSOLID, MASK_NONE)) {
 }
 
diff --git a/source/sprites/Corpse.h b/source/sprites/Corpse.h
index b453301..7ed8bd0 100644
--- a/source/sprites/Corpse.h
+++ b/source/sprites/Corpse.h
@@ -17,7 +17,7 @@ class Yaml;
 class Corpse : public Sprite {
 // Public functions.
 public:
-	Corpse(const Vector2f& position, const Yaml& config);
+	Corpse(const sf::Vector2f& position, const Yaml& config);
 };
 
 #endif /* DG_CORPSE_H_ */
diff --git a/source/sprites/Enemy.cpp b/source/sprites/Enemy.cpp
index 282771f..f7615c2 100644
--- a/source/sprites/Enemy.cpp
+++ b/source/sprites/Enemy.cpp
@@ -10,7 +10,7 @@
 #include "Corpse.h"
 
 Enemy::Enemy(World& collection, Pathfinder& pathfinder,
-	const Vector2f& position, const Yaml& config) :
+	const sf::Vector2f& position, const Yaml& config) :
 		Character(collection, pathfinder,
 				Data(position, 0, CATEGORY_ACTOR, MASK_ALL),
 				config) {
diff --git a/source/sprites/Enemy.h b/source/sprites/Enemy.h
index acf5ac2..1a85bb8 100644
--- a/source/sprites/Enemy.h
+++ b/source/sprites/Enemy.h
@@ -8,9 +8,10 @@
 #ifndef DG_ENEMY_H_
 #define DG_ENEMY_H
 
+#include <SFML/System.hpp>
+
 #include "../abstract/Character.h"
 #include "../World.h"
-#include "../types/Vector.h"
 #include "../util/Yaml.h"
 
 class Character;
@@ -22,7 +23,7 @@ class Enemy : public Character {
 // Public functions.
 public:
 	Enemy(World& collection, Pathfinder& pathfinder,
-			const Vector2f& position, const Yaml& config);
+			const sf::Vector2f& position, const Yaml& config);
 
 // Private functions.
 private:
diff --git a/source/sprites/Player.cpp b/source/sprites/Player.cpp
index 8703020..df0ceb4 100644
--- a/source/sprites/Player.cpp
+++ b/source/sprites/Player.cpp
@@ -7,17 +7,17 @@
 
 #include "Player.h"
 
+#include <string>
+
 #include <Thor/Vectors.hpp>
 
 #include "../items/Weapon.h"
-#include "../types/String.h"
-#include "../types/Vector.h"
 
 /**
  * Initializes Sprite.
  */
 Player::Player(World& world, Pathfinder& pathfinder,
-	const Vector2f& position, const Yaml& config) :
+	const sf::Vector2f& position, const Yaml& config) :
 		Character(world, pathfinder,
 				Data(position, 0, CATEGORY_ACTOR, MASK_ALL),
 				config),
@@ -30,7 +30,7 @@ Player::Player(World& world, Pathfinder& pathfinder,
  * @param Absolute world coordinates of the crosshair.
  */
 void
-Player::setCrosshairPosition(const Vector2f& position) {
+Player::setCrosshairPosition(const sf::Vector2f& position) {
 	mCrosshairPosition = position - getPosition();
 }
 
@@ -49,7 +49,7 @@ Player::fire() {
  * @param destination Absolute world coordinate of the destination point.
  */
 void
-Player::move(const Vector2f& destination) {
+Player::move(const sf::Vector2f& destination) {
 	setDestination(destination);
 }
 
@@ -68,7 +68,7 @@ Player::setDirection(Direction direction, bool unset) {
 		mDirection = mDirection | direction;
 	}
 	// Convert directions into a vector.
-	Vector2f dirVec(0, 0);
+	sf::Vector2f dirVec(0, 0);
 	if (mDirection & Direction::RIGHT) {
 		dirVec.x += 1.0f;
 	}
@@ -94,7 +94,7 @@ Player::onThink(float elapsedTime) {
 		Character::move();
 	}
 	// Look towards crosshair.
-	if (mCrosshairPosition != Vector2f()) {
+	if (mCrosshairPosition != sf::Vector2f()) {
 		setAngle(thor::polarAngle(mCrosshairPosition) + 90);
 	}
 }
diff --git a/source/sprites/Player.h b/source/sprites/Player.h
index 58d3742..c340d85 100644
--- a/source/sprites/Player.h
+++ b/source/sprites/Player.h
@@ -13,7 +13,6 @@
 
 #include "../abstract/Character.h"
 #include "../items/Weapon.h"
-#include "../types/Vector.h"
 #include "../util/Pathfinder.h"
 #include "../util/Yaml.h"
 
@@ -42,11 +41,11 @@ public:
 // Public functions.
 public:
 	Player(World& world, Pathfinder& pathfinder,
-			const Vector2f& position, const Yaml& config);
+			const sf::Vector2f& position, const Yaml& config);
 
-	void setCrosshairPosition(const Vector2f& position);
+	void setCrosshairPosition(const sf::Vector2f& position);
 	void fire();
-	void move(const Vector2f& destination);
+	void move(const sf::Vector2f& destination);
 	void setDirection(Direction direction, bool unset);
 
 // Private functions.
@@ -56,7 +55,7 @@ private:
 
 // Private variables.
 private:
-	Vector2f mCrosshairPosition; //< Relative position of the point to fire at (mouse cursor).
+	sf::Vector2f mCrosshairPosition; //< Relative position of the point to fire at (mouse cursor).
 	unsigned char mDirection; //< Current movement direction for direct control.
 };
 
diff --git a/source/sprites/TileManager.cpp b/source/sprites/TileManager.cpp
index e1f8a7c..2991076 100644
--- a/source/sprites/TileManager.cpp
+++ b/source/sprites/TileManager.cpp
@@ -7,14 +7,15 @@
 
 #include "TileManager.h"
 
+#include <string>
+
 #include <Thor/Resources.hpp>
 
 #include "../abstract/Sprite.h"
-#include "../types/String.h"
 #include "../util/Loader.h"
 #include "../util/ResourceManager.h"
 
-const Vector2i TileManager::TILE_SIZE = Vector2i(100, 100);
+const sf::Vector2i TileManager::TILE_SIZE = sf::Vector2i(100, 100);
 
 /**
  * Loads tile resources.
@@ -34,7 +35,7 @@ TileManager::TileManager(World& world) :
  */
 TileManager::Tile::Tile(Type type, const TilePosition& position) :
 		Sprite(Yaml(getConfig(type)), Data(
-				Vector2f(position.x * TILE_SIZE.x, position.y * TILE_SIZE.y), 0,
+				sf::Vector2f(position.x * TILE_SIZE.x, position.y * TILE_SIZE.y), 0,
 				CATEGORY_WORLD, (type == Type::FLOOR) ? MASK_NONE : MASK_ALL)),
 		mType(type) {
 }
@@ -45,9 +46,9 @@ TileManager::Tile::Tile(Type type, const TilePosition& position) :
  * @param type The type of tile to load a resource key for.
  * @return Resource key to the correct texture.
  */
-String
+std::string
 TileManager::Tile::getConfig(Type type) {
-	String filename;
+	std::string filename;
 	switch (type) {
 	case Type::FLOOR:
 		filename = "tile_floor.yaml";
diff --git a/source/sprites/TileManager.h b/source/sprites/TileManager.h
index 7d22850..947839f 100644
--- a/source/sprites/TileManager.h
+++ b/source/sprites/TileManager.h
@@ -13,8 +13,7 @@
 
 #include "../World.h"
 #include "../abstract/Sprite.h"
-#include "../types/Vector.h"
-#include "../types/String.h"
+#include <string>
 
 class World;
 class Sprite;
@@ -30,12 +29,12 @@ public:
 	/**
 	 * Uses the length/width of a tile as a unit.
 	 */
-	typedef Vector2i TilePosition;
+	typedef sf::Vector2i TilePosition;
 
 // Public variables.
 public:
 	/// The size of a single tile (pixels).
-	static const Vector2i TILE_SIZE;
+	static const sf::Vector2i TILE_SIZE;
 
 // Public functions.
 public:
@@ -68,7 +67,7 @@ public:
 	Type getType() const;
 	TilePosition getTilePosition() const;
 
-	static String getConfig(Type type);
+	static std::string getConfig(Type type);
 
 // Private variables.
 private:
diff --git a/source/types/String.h b/source/types/String.h
deleted file mode 100644
index 7e5bbd6..0000000
--- a/source/types/String.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * String.h
- *
- *  Created on: 19.07.2012
- *      Author: Felix
- */
- 
-/**
- * Use this as a replacement for std::to_string as MingW does not support it.
- */
-
-#ifndef DG_STRING_H_
-#define DG_STRING_H_
-
-#include <sstream>
-#include <string>
-
-typedef std::string String;
-
-/**
- * Converts any value to a string.
- *
- * @param val Any variable.
- * @return val converted to string.
- */
-template <typename T>
-String
-str(T val) {
-	std::stringstream out;
-	out << val;
-	return out.str();
-}
-
-/**
- * Converts floating point variable to string,
- *
- * @param val Any floating point variable.
- * @param digits Number of decimal places to round to.
- * @return val converted to string.
- */
-template <typename T>
-String
-str(T val, int digits) {
-	std::stringstream out;
-	out.precision(digits);
-	out << val;
-	return out.str();
-}
-
-#endif /* DG_STRING_H_ */
diff --git a/source/types/Vector.h b/source/types/Vector.h
deleted file mode 100644
index a054abe..0000000
--- a/source/types/Vector.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Vector.h
- *
- *  Created on: 03.08.2012
- *      Author: Felix
- */
-
-#ifndef DG_VECTOR_H_
-#define DG_VECTOR_H_
-
-#include <math.h>
-
-#include <SFML/System.hpp>
-
-#include <Thor/Vectors.hpp>
-
-/**
- * 2D floating point vector with x/y members.
- */
-typedef sf::Vector2f Vector2f;
-
-/**
- * 2D integer vector with x/y members.
- */
-typedef sf::Vector2i Vector2i;
-
-#endif /* DG_VECTOR_H_ */
diff --git a/source/util/Log.h b/source/util/Log.h
index 140a08d..f364eea 100644
--- a/source/util/Log.h
+++ b/source/util/Log.h
@@ -10,8 +10,6 @@
 
 #include <iostream>
 
-#include "../types/Vector.h"
-
 /**
  * Logging functions for different levels.
  *
@@ -46,19 +44,19 @@
 #define LOG_I(str) std::cout << __FILE__ << ":" << __LINE__ << " " << "Info:    " << str << std::endl
 
 /**
- * Adds an output operator specalization for Vector2f.
+ * Adds an output operator specalization for sf::Vector2f.
  */
 inline std::ostream&
-operator<<(std::ostream& os, const Vector2f& vector) {
+operator<<(std::ostream& os, const sf::Vector2f& vector) {
     os << "(" << vector.x << ", " << vector.y << ")";
     return os;
 }
 
 /**
- * Adds an output operator specalization for Vector2i
+ * Adds an output operator specalization for sf::Vector2i
  */
 inline std::ostream&
-operator<<(std::ostream& os, const Vector2i& vector) {
+operator<<(std::ostream& os, const sf::Vector2i& vector) {
     os << "(" << vector.x << ", " << vector.y << ")";
     return os;
 }
diff --git a/source/util/Pathfinder.cpp b/source/util/Pathfinder.cpp
index 97df82a..7702419 100644
--- a/source/util/Pathfinder.cpp
+++ b/source/util/Pathfinder.cpp
@@ -11,7 +11,7 @@
 Pathfinder::Pathfinder() {
 }
 
-std::vector<Vector2f>
-Pathfinder::getPath(Body& physical, const Vector2f& destination) {
-	return std::vector<Vector2f>();
+std::vector<sf::Vector2f>
+Pathfinder::getPath(Body& physical, const sf::Vector2f& destination) {
+	return std::vector<sf::Vector2f>();
 }
diff --git a/source/util/Pathfinder.h b/source/util/Pathfinder.h
index 01b043d..3d0f6b8 100644
--- a/source/util/Pathfinder.h
+++ b/source/util/Pathfinder.h
@@ -8,8 +8,9 @@
 #ifndef PATHFINDER_H_
 #define PATHFINDER_H_
 
+#include <SFML/System.hpp>
+
 #include "../abstract/Body.h"
-#include "../types/Vector.h"
 
 class Body;
 
@@ -18,7 +19,7 @@ class Pathfinder {
 public:
 	Pathfinder();
 
-	std::vector<Vector2f> getPath(Body& physical, const Vector2f& destination);
+	std::vector<sf::Vector2f> getPath(Body& physical, const sf::Vector2f& destination);
 };
 
 #endif /* PATHFINDER_H_ */
diff --git a/source/util/Yaml.cpp b/source/util/Yaml.cpp
index a90a81b..48af081 100644
--- a/source/util/Yaml.cpp
+++ b/source/util/Yaml.cpp
@@ -9,13 +9,13 @@
 
 #include "../util/Log.h"
 
-String Yaml::mFolder = "";
+std::string Yaml::mFolder = "";
 
 /**
  * Creates a readable object from a YAML file. The path must be relative to the directory
  * set in setFolder().
  */
-Yaml::Yaml(const String& filename) :
+Yaml::Yaml(const std::string& filename) :
 		mFilename(mFolder+filename),
 		mFile(mFilename) {
 	if (mFile.fail()) {
@@ -32,7 +32,7 @@ Yaml::~Yaml() {
 /**
  * Return path and name of the file opened in this object.
  */
-String
+std::string
 Yaml::getFilename() const {
 	return mFilename;
 }
@@ -42,6 +42,6 @@ Yaml::getFilename() const {
  * shorter strings as this does not have to be added everywhere.
  */
 void
-Yaml::setFolder(const String& folder) {
+Yaml::setFolder(const std::string& folder) {
 	mFolder = folder;
 }
diff --git a/source/util/Yaml.h b/source/util/Yaml.h
index 58a9997..60eaf94 100644
--- a/source/util/Yaml.h
+++ b/source/util/Yaml.h
@@ -8,12 +8,12 @@
 #ifndef DG_YAML_H_
 #define DG_YAML_H_
 
+#include <string>
 #include <fstream>
 
 #include <yaml-cpp/yaml.h>
 
-#include "../types/String.h"
-#include "../types/Vector.h"
+#include <SFML/System.hpp>
 
 /**
  * Interface to a YAML file.
@@ -21,21 +21,21 @@
 class Yaml {
 // Public functions.
 public:
-	Yaml(const String& filename);
+	Yaml(const std::string& filename);
 	~Yaml();
 
-	String getFilename() const;
+	std::string getFilename() const;
 
-	static void setFolder(const String& folder);
+	static void setFolder(const std::string& folder);
 
 	template <typename T>
-	T get(const String& key, const T& defaultValue) const;
+	T get(const std::string& key, const T& defaultValue) const;
 
 // Private variables.
 private:
-	static String mFolder;
+	static std::string mFolder;
 
-	String mFilename;
+	std::string mFilename;
 	std::ifstream mFile;
 	YAML::Node mNode;
 };
@@ -44,12 +44,12 @@ private:
  * Stream output operators to specialize Yaml::get for other types.
  */
 namespace {
-	void operator>>(const YAML::Node& node, Vector2i& vector) {
+	void operator>>(const YAML::Node& node, sf::Vector2i& vector) {
 		node[0] >> vector.x;
 		node[1] >> vector.y;
 	}
 
-	void operator>>(const YAML::Node& node, Vector2f& vector) {
+	void operator>>(const YAML::Node& node, sf::Vector2f& vector) {
 		node[0] >> vector.x;
 		node[1] >> vector.y;
 	}
@@ -63,7 +63,7 @@ namespace {
  * @return The value of the specified key.
  */
 template <typename T>
-T Yaml::get(const String& key, const T& defaultValue) const {
+T Yaml::get(const std::string& key, const T& defaultValue) const {
 	if (const YAML::Node* node = mNode.FindValue(key)) {
 		T value;
 		*node >> value;