#pragma once

#include <deque>
#include "robot.h"

/// <summary>
/// This class implements a priority queue of pointers to objects of the
/// Robot type.
/// </summary>
class RobotQueue {
private:
    std::deque<PRobot> pq;
public:
    // new types
    typedef std::deque<PRobot>::iterator iterator;
    // constructors & destructors
    RobotQueue(void)  {};
    ~RobotQueue(void) { pq.clear(); };
    // methods
    bool empty() { return pq.empty(); };
    int size()  { return pq.size();  };
    void push(PRobot pr);
    PRobot pop();
    void remove(PRobot pr);

    iterator remove(iterator pos) { return pq.erase(pos); };
    iterator begin() { return pq.begin(); };
    iterator end()   { return pq.end();   };
    // operators
    const PRobot& operator[](int index)  { return pq[index]; };
    // aliases
    #define add   push
    #define erase remove
};