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dungeon-gunner/source/World.h

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/*
* World.h
*
* Created on: 29.08.2012
* Author: Felix
*/
#ifndef DG_WORLD_H_
#define DG_WORLD_H_
#include "abstract/Character.h"
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#include "abstract/Sprite.h"
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class Character;
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class Sprite;
/**
* A collection of sprites, which can be put into different layers.
*
* Uses Sprite instead of sf::Drawable to also manage deleting objects.
* Render order is determined by Physical::Category (higher number on top).
*/
class World : public sf::Drawable {
public:
void insert(std::shared_ptr<Sprite> drawable);
void remove(std::shared_ptr<Sprite> drawable);
void insertCharacter(std::shared_ptr<Character> character);
void removeCharacter(std::shared_ptr<Character> character);
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void step(int elapsed);
void think(int elapsed);
void insertArea(const sf::IntRect& rect);
void generatePortals();
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std::vector<sf::Vector2f> getPath(const sf::Vector2f& start,
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const sf::Vector2f& end, float radius) const;
std::vector<std::shared_ptr<Character> >
getCharacters(const sf::Vector2f& position, float maxDistance) const;
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private:
struct Area;
/**
* Edges
*
* Redundant data as portals are saved twice.
*/
struct Portal {
Portal() = default;
Portal(const sf::Vector2i& start, const sf::Vector2i& end);
bool operator==(const Portal& p) {
return start == p.start && end == p.end && area == p.area;
}
sf::Vector2i start;
sf::Vector2i end;
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Area* area;
};
/**
* Nodes
*/
struct Area {
sf::IntRect area;
sf::Vector2i center;
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std::vector<Portal> portals;
};
private:
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void draw(sf::RenderTarget& target, sf::RenderStates states) const;
bool testCollision(std::shared_ptr<Sprite> spriteA, std::shared_ptr<Sprite> spriteB,
int elapsed) const;
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Area* getArea(const sf::Vector2f& point) const;
float heuristic_cost_estimate(Area* start, Area* end) const;
std::vector<Portal*> astarArea(Area* start, Area* end) const;
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private:
static const float WALL_DISTANCE_MULTIPLIER;
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std::map<Sprite::Category, std::vector<std::shared_ptr<Sprite> > > mDrawables;
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std::vector<Area> mAreas; //< This has to be a vector as objects are compared by address.
std::vector<std::shared_ptr<Character> > mCharacters;
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};
#endif /* DG_WORLD_H_ */