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/**
* @file
* @brief Provide a way to iterator over all actors, subject to a few common restrictions.
**/
#pragma once
#include "los-type.h"
class actor_near_iterator
{
public:
actor_near_iterator(coord_def c, los_type los = LOS_DEFAULT);
actor_near_iterator(const actor* a, los_type los = LOS_DEFAULT);
operator bool() const;
actor* operator*() const;
actor* operator->() const;
actor_near_iterator& operator++();
actor_near_iterator operator++(int);
protected:
const coord_def center;
los_type _los;
const actor* viewer;
int i;
const int max;
bool valid(const actor* a) const;
void advance();
};
class monster_near_iterator
{
public:
monster_near_iterator(coord_def c, los_type los = LOS_DEFAULT);
monster_near_iterator(const actor* a, los_type los = LOS_DEFAULT);
operator bool() const;
monster* operator*() const;
monster* operator->() const;
monster_near_iterator& operator++();
monster_near_iterator operator++(int);
bool operator==(const monster_near_iterator &other);
bool operator!=(const monster_near_iterator &other);
monster_near_iterator begin();
monster_near_iterator end();
protected:
const coord_def center;
los_type _los;
const actor* viewer;
int i;
const int max;
int begin_point;
bool valid(const monster* a) const;
void advance();
};
class monster_iterator
{
public:
monster_iterator();
operator bool() const;
monster* operator*() const;
monster* operator->() const;
monster_iterator& operator++();
monster_iterator operator++(int);
protected:
int i;
const int max;
void advance();
};
// Actor sorters for combination with the above
// Compare two actors, sorting farthest to nearest from {pos}
struct far_to_near_sorter
{
coord_def pos;
bool operator()(const actor* a, const actor* b);
};
// Compare two actors, sorting nearest to farthest from {pos}
struct near_to_far_sorter
{
coord_def pos;
bool operator()(const actor* a, const actor* b);
};
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