dungeon-gunner/source/abstract/Sprite.h

/*
 * Sprite.h
 *
 *  Created on: 11.08.2012
 *      Author: Felix
 */

#ifndef DG_SPRITE_H_
#define DG_SPRITE_H_

#include <memory>

#include <SFML/Graphics.hpp>

class Yaml;

/**
 * An sprite that is rendered in the world.
 */
class Sprite : public sf::Drawable {
public:
	/**
	 * Categories of objects for filtering.
	 * The order of categories is also used for render order (higher number on top).
	 */
	enum Category {
		CATEGORY_WORLD = 1 << 1,
		CATEGORY_NONSOLID = 1 << 2,
		CATEGORY_PARTICLE = 1 << 3,
		CATEGORY_ACTOR = 1 << 4
	};

	/**
	 * Container that carries all data required to construct an object of
	 * this class.
	 */
	class Data {
	public:
		explicit Data(const sf::Vector2f& position,
				Category category, unsigned short mask,
				const sf::Vector2f& direction = sf::Vector2f(0, 0));
		const sf::Vector2f& position;
		const sf::Vector2f& direction;
		Category category;
		unsigned short mask;
	};

	/**
	 * Common collision masking values.
	 */
	enum Mask : unsigned short {
		MASK_ALL = 0xffff, //< Enables all collisions.
		MASK_NONE = 0 //< Disables any collisions.
	};

// Public functions.
public:
	explicit Sprite(const Data& data, const Yaml& config);
	virtual ~Sprite() = 0;

	sf::Vector2f getPosition() const;
	sf::Vector2f getSpeed() const;
	sf::Vector2f getDirection() const;
	bool getDelete() const;
	Category getCategory() const;
	sf::Vector2f getSize() const;
	virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const;
	bool collisionEnabled(Category category) const;
	bool isMovable() const;

	virtual void onCollide(std::shared_ptr<Sprite> other);

protected:
	void setDelete(bool value);
	void setSpeed(sf::Vector2f direction, float speed);
	void setDirection(const sf::Vector2f& direction);
	void setPosition(const sf::Vector2f& position);
	float getRadius() const;

private:
	class Shape {
	public:
		enum class Type {
			CIRCLE,
			RECTANGLE
		};

		Type type;
		std::shared_ptr<sf::Shape> shape;
	};

private:
	friend class World;

	Shape mShape;
	std::shared_ptr<sf::Texture> mTexture;
	sf::Vector2f mSpeed;
	Category mCategory;
	unsigned short mMask;
	bool mDelete;
};

#endif /* DG_SPRITE_H_ */