Changed code to use direction vector instead of angle.

source/abstract/Sprite.cpp

@@ -57,7 +57,7 @@ Sprite::Sprite(const Data& data, const Yaml& config) :
 	mShape.shape->setTexture(&*mTexture, false);
 
 	setPosition(data.position);
-	setAngle(data.angle);
+	setDirection(data.direction);
 }
 
 /**
@@ -69,10 +69,10 @@ Sprite::~Sprite() {
 /**
  * Initializes container.
  */
-Sprite::Data::Data(const sf::Vector2f& position, float angle,
+Sprite::Data::Data(const sf::Vector2f& position, const sf::Vector2f& direction,
 		Category category, unsigned short mask) :
 		position(position),
-		angle(angle),
+		direction(direction),
 		category(category),
 		mask(mask) {
 }
@@ -96,9 +96,9 @@ Sprite::getSpeed() const {
 /**
  * Returns the angle of the sprite.
  */
-float
+sf::Vector2f
-Sprite::getAngle() const {
+Sprite::getDirection() const {
-	return mShape.shape->getRotation();
+	return thor::rotatedVector(sf::Vector2f(1, 0), mShape.shape->getRotation());
 }
 
 /**
@@ -172,12 +172,11 @@ Sprite::setSpeed(sf::Vector2f direction, float speed) {
 	mSpeed = direction;
 }
 
-/**
- * Sets the angle of the Sprite.
- */
 void
-Sprite::setAngle(float angle) {
+Sprite::setDirection(const sf::Vector2f& direction) {
-	mShape.shape->setRotation(angle);
+	if (direction != sf::Vector2f()) {
+		mShape.shape->setRotation(thor::polarAngle(direction) + 90);
+	}
 }
 
 /**

source/abstract/Sprite.h

@@ -36,10 +36,10 @@ public:
 	 */
 	class Data {
 	public:
-		Data(const sf::Vector2f& position, float angle,	Category category,
+		Data(const sf::Vector2f& position, const sf::Vector2f& direction,
-				unsigned short mask);
+				Category category, unsigned short mask);
 		const sf::Vector2f& position;
-		float angle;
+		const sf::Vector2f& direction;
 		Category category;
 		unsigned short mask;
 	};
@@ -59,7 +59,7 @@ public:
 
 	sf::Vector2f getPosition() const;
 	sf::Vector2f getSpeed() const;
-	float getAngle() const;
+	sf::Vector2f getDirection() const;
 	bool getDelete() const;
 	Category getCategory() const;
 	sf::Vector2f getSize() const;
@@ -78,7 +78,7 @@ public:
 protected:
 	void setDelete(bool value);
 	void setSpeed(sf::Vector2f direction, float speed);
-	void setAngle(float angle);
+	void setDirection(const sf::Vector2f& direction);
 	void setPosition(const sf::Vector2f& position);
 	float getRadius() const;
 

source/effects/Bullet.cpp

@@ -24,16 +24,16 @@ const float Bullet::DEFAULT_SPEED = 500;
  * @param world Box2d world.
  * @param texture Texture to display for bullet.
  */
-Bullet::Bullet(const sf::Vector2f& position, Sprite& shooter, float direction,
+Bullet::Bullet(const sf::Vector2f& position, Sprite& shooter,
-	const Yaml& config) :
+		sf::Vector2f direction, const Yaml& config) :
-		Particle(config, Data(position, 0, CATEGORY_PARTICLE, ~CATEGORY_PARTICLE)),
+		Particle(config, Data(position, sf::Vector2f(0, 0), CATEGORY_PARTICLE,
+				~CATEGORY_PARTICLE)),
 		mShooter(shooter),
 		mDamage(config.get(KEY_DAMAGE, DEFAULT_DAMAGE)),
 		mSpeed(config.get(KEY_SPEED, DEFAULT_SPEED)) {
-	sf::Vector2f dir(1.0f, 0);
+	thor::rotate(direction, - 90.0f);
-	thor::setPolarAngle(dir, direction - 90);
+	setSpeed(direction, mSpeed);
-	setSpeed(dir, mSpeed);
+	setDirection(direction);
-	setAngle(direction);
 }
 
 /**

source/effects/Bullet.h

@@ -18,8 +18,8 @@ class Yaml;
 class Bullet : public Particle {
 // Public functions.
 public:
-	Bullet(const sf::Vector2f& position, Sprite& shooter, float direction,
+	Bullet(const sf::Vector2f& position, Sprite& shooter,
-			const Yaml& config);
+			sf::Vector2f direction, const Yaml& config);
 
 	void onCollide(std::shared_ptr<Sprite> other);
 

source/items/Weapon.cpp

@@ -81,7 +81,7 @@ std::shared_ptr<Sprite>
 Weapon::createParticle() {
 	// Minus to account for positive y-axis going downwards in SFML.
 	sf::Vector2f offset(- mOffset);
-	thor::rotate(offset, mHolder.getAngle());
+	thor::rotate(offset, thor::polarAngle(mHolder.getDirection()));
 	return std::shared_ptr<Sprite>(new Bullet(mHolder.getPosition() + offset,
-			mHolder, mHolder.getAngle(), Yaml(mBullet)));
+			mHolder, mHolder.getDirection(), Yaml(mBullet)));
 }

source/sprites/Corpse.cpp

@@ -8,6 +8,7 @@
 #include "Corpse.h"
 
 Corpse::Corpse(const sf::Vector2f& position, const Yaml& config) :
-		Sprite(Data(position, 0, CATEGORY_NONSOLID, MASK_NONE), config) {
+		Sprite(Data(position, sf::Vector2f(0, 0), CATEGORY_NONSOLID, MASK_NONE),
+				config) {
 }
 

source/sprites/Enemy.cpp

@@ -7,7 +7,8 @@
 
 #include "Enemy.h"
 
-Enemy::Enemy(World& collection, const sf::Vector2f& position, const Yaml& config) :
+Enemy::Enemy(World& world, const sf::Vector2f& position,
-		Character(collection, Data(position, 0, CATEGORY_ACTOR, MASK_ALL),
+		const Yaml& config) :
-				config) {
+		Character(world, Data(position, sf::Vector2f(0, 0),
+				CATEGORY_ACTOR, MASK_ALL), config) {
 }

source/sprites/Enemy.h

@@ -16,7 +16,7 @@ class Yaml;
 class Enemy : public Character {
 // Public functions.
 public:
-	Enemy(World& collection, const sf::Vector2f& position, const Yaml& config);
+	Enemy(World& world, const sf::Vector2f& position, const Yaml& config);
 };
 
 #endif /* DG_ENEMY_H_ */

source/sprites/Player.cpp

@@ -13,8 +13,8 @@
  * Initializes Sprite.
  */
 Player::Player(World& world, const sf::Vector2f& position, const Yaml& config) :
-		Character(world, Data(position, 0, CATEGORY_ACTOR, MASK_ALL),
+		Character(world, Data(position, sf::Vector2f(0, 0), CATEGORY_ACTOR,
-				config),
+				MASK_ALL), config),
 		mDirection(0) {
 }
 
@@ -97,7 +97,5 @@ Player::onThink(int elapsed) {
 		Character::move();
 	}
 	// Look towards crosshair.
-	if (mCrosshairPosition != sf::Vector2f()) {
+	Sprite::setDirection(mCrosshairPosition);
-		setAngle(thor::polarAngle(mCrosshairPosition) + 90);
-	}
 }

source/sprites/TileManager.cpp

@@ -31,7 +31,7 @@ TileManager::TileManager(World& world) :
  */
 TileManager::Tile::Tile(Type type, const TilePosition& position) :
 		Sprite(Data(sf::Vector2f(position.x * TILE_SIZE.x, position.y * TILE_SIZE.y),
-				0, CATEGORY_WORLD, (type == Type::FLOOR) ? MASK_NONE : MASK_ALL),
+				sf::Vector2f(0, 0), CATEGORY_WORLD, (type == Type::FLOOR) ? MASK_NONE : MASK_ALL),
 				Yaml(getConfig(type))),
 		mType(type) {
 }