person.h

游戏开发数据结构Data Structures for Game Programmers

// ============================================================================
// Person.h
// Contains the person class
// ============================================================================
#ifndef PERSON_H
#define PERSON_H

#include "Object.h"
#include "Item.h"
#include "DLinkedList.h"



// ============================================================================
//  Person Class
// ============================================================================
class Person : public Object
{
protected:
// =======================================================
//  Data
// =======================================================

// -------------------------------------------------------
// Name:        m_health
// Description: the health of the person
// -------------------------------------------------------
    int m_health;

// -------------------------------------------------------
// Name:        m_armor
// Description: the armor of the person
// -------------------------------------------------------
    int m_armor;

// -------------------------------------------------------
// Name:        m_type
// Description: the type of the person
// -------------------------------------------------------
    int m_type;

// -------------------------------------------------------
// Name:        m_direction
// Description: the direction of the person
// -------------------------------------------------------
    int m_direction;

// -------------------------------------------------------
// Name:        m_inventory
// Description: the inventory of the person
// -------------------------------------------------------
    DLinkedList<Item*> m_inventory;

// -------------------------------------------------------
// Name:        m_currentweapon
// Description: an iterator pointing to the current weapon
// -------------------------------------------------------
    DListIterator<Item*> m_currentweapon;

// -------------------------------------------------------
// Name:        m_graphics
// Description: a 2D array of graphics that make up the
//              sprite animation.
// -------------------------------------------------------
    SDL_Surface* m_graphics[DIRECTIONS][FRAMES];
    
// -------------------------------------------------------
// Name:        m_lastattack
// Description: Keeps track of the last time that the
//              player has attacked
// -------------------------------------------------------
    int m_lastattack;

// -------------------------------------------------------
// Name:        m_lastmove
// Description: Keeps track of the last time that the
//              player has moved
// -------------------------------------------------------
    int m_lastmove;

// -------------------------------------------------------
// Name:        m_attackmodifier
// Description: the "handicap" of the player. Determines
//              how much faster or slower (milliseconds)
//              the person attacks
// -------------------------------------------------------
    int m_attackmodifier;


    
public:
// =======================================================
//  Functions
// =======================================================

// -------------------------------------------------------
// Name:        Person
// Description: Constructs the person
// -------------------------------------------------------
    Person()
    {
        // set the person type to 0
        m_type = 0;

        // set up the health and armor
        m_health = 100;
        m_armor = 100;

        // set up the initial direction (pointing down)
        m_direction = 2;

        m_currentweapon = m_inventory.GetIterator();

        // clear the images
        int f, d;
        for( d = 0; d < DIRECTIONS; d++ )
        {
            for( f = 0; f < FRAMES; f++ )
            {
                m_graphics[d][f] = 0;
            }
        }

        // clear the timers
        m_lastmove = 0;
        m_lastattack = 0;
        m_attackmodifier = 0;
    }

// -------------------------------------------------------
// Name:        ~Person
// Description: Destructs the person, and deletes all of 
//              their inventory
// -------------------------------------------------------
    ~Person()
    {
        DListIterator<Item*> itr = m_inventory.GetIterator();
        for( itr.Start(); itr.Valid(); itr.Forth() )
        {
            if( itr.Item() != 0 )
                delete itr.Item();
        }
    }

// -------------------------------------------------------
// Name:        Copy Constructor/assignment operator
// Description: this is the copy constructor, it copies
//              a player to another
// -------------------------------------------------------
    Person( Person& p_person )
    {
        *this = p_person;
    }

    void operator= ( Person& p_person )
    {
        int d, f;

        m_health    = p_person.m_health;
        m_armor     = p_person.m_armor;
        m_type      = p_person.m_type;
        m_direction = p_person.m_direction;
    
        for( d = 0; d < DIRECTIONS; d++ )
        {
            for( f = 0; f < FRAMES; f++ )
            {
                m_graphics[d][f] = p_person.m_graphics[d][f];
            }
        }

        // don't copy the inventory over.

        m_lastattack = p_person.m_lastattack;
        m_lastmove   = p_person.m_lastmove;
        m_attackmodifier = p_person.m_attackmodifier;
        m_x = p_person.m_x;
        m_y = p_person.m_y;
        m_cell = p_person.m_cell;
    }


// -------------------------------------------------------
// Name:        GetDirection
// Description: Gets the direction of the person
// -------------------------------------------------------
    int GetDirection()
    {
        return m_direction;
    }

    
// -------------------------------------------------------
// Name:        SetDirection
// Description: Sets the direction of the person
// -------------------------------------------------------
    void SetDirection( int p_direction )
    { 
        m_direction = (p_direction + 4) % 4;
    }

    
// -------------------------------------------------------
// Name:        SetPersonType
// Description: Sets the type of the person
// -------------------------------------------------------
    void SetPersonType( int p_type )
    {
        m_type = p_type;
    }

    
// -------------------------------------------------------
// Name:        GetPersonType
// Description: Gets the type of the person
// -------------------------------------------------------
    int GetPersonType()
    { 
        return m_type; 
    }


// -------------------------------------------------------
// Name:        SetHealth
// Description: sets the health of the person
// -------------------------------------------------------
    void SetHealth( int p_health )
    { 
        // set the health, and make sure it doesn't go below 0 or above 100;
        m_health = p_health;  
        if( m_health < 0 )
            m_health = 0;
        if( m_health > 100 )
            m_health = 100;
    }

    
// -------------------------------------------------------
// Name:        GetHealth
// Description: gets the health of the person
// -------------------------------------------------------
    int GetHealth()
    { 
        return m_health; 
    }


// -------------------------------------------------------
// Name:        SetArmor
// Description: sets the armor of the person
// -------------------------------------------------------
    void SetArmor( int p_armor )
    { 
        m_armor = p_armor;
        if( m_armor < 0 )
            m_armor = 0;
        if( m_armor > 100 )
            m_armor = 100;
    }
    

// -------------------------------------------------------
// Name:        GetArmor
// Description: gets the armor of the person
// -------------------------------------------------------
    int GetArmor()
    { 
        return m_armor; 
    }

    
// -------------------------------------------------------
// Name:        GetItemIterator
// Description: gets an item iterator pointing at the
//              current item
// -------------------------------------------------------
    DListIterator<Item*> GetItemIterator()
    { 
        return m_currentweapon; 
    }
    

// -------------------------------------------------------
// Name:        AddItem