MMORPG大型游戏设计与开发（客户端架构 part12 of vegine）

在游戏中的交互过程中输入是一个必不可少的过程，比如登陆的时候需要用户输入用户名与密码，就算是单机游戏很多时候也要求用户输入一个用户名作为存档的依据。网络游戏中没有了输入，只用鼠标来交互是不切实际的，因为用户总会为单一的操作而觉得厌烦。资源提供系统，是将游戏中各种的资源加载到内存中以供使用，比如说一张图片，一张数据表等等。在cegui和ogre中都自己封装了输入与资源管理的类，本次设计中自然是在它基础上扩展封装。那么，就让我们看看这两块提供了哪些方法吧。

CODE

  模块resource 文件provider.h

/**
 * PAP Engine ( -- )
 * $Id provider.h
 * @link -- for the canonical source repository
 * @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
 * @license
 * @user viticm<viticm@126.com/viticm.ti@gmail.com>
 * @date 2014-3-19 19:06:31
 * @uses vegine resource provider module
 */
#ifndef VENGINE_RESOURCE_PROVIDER_H_
#define VENGINE_RESOURCE_PROVIDER_H_

#include "vengine/config.h"
#include "vengine/kernel/node.h"

namespace vengine_resource {

class VENGINE_API Provider : public vengine_kernel::Node {

VENGINE_KERNEL_DECLARE_DYNAMIC(vengine_resource_Provider);

 public:
   virtual uint64_t loadresource(const char* filename, 
                                 char*& memoryaddress, 
                                 const char* group = NULL) = 0;
   virtual bool unloadresource(char* memoryaddress, uint64_t size) = 0;

};

}; //namespace vengine_resource

#endif //VENGINE_RESOURCE_PROVIDER_H_

模块input 文件system.h

/**
 * PAP Engine ( -- )
 * $Id system.h
 * @link -- for the canonical source repository
 * @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
 * @license
 * @user viticm<viticm@126.com/viticm.ti@gmail.com>
 * @date 2014-3-19 17:23:32
 * @uses vengine inpout system module
 */
#ifndef VENGINE_INPUT_SYSTEM_H_
#define VENGINE_INPUT_SYSTEM_H_

#include "vengine/config.h"
#include "vengine/kernel/node.h"

namespace vengine_input {

typedef enum { //for windows keycode
    kKeyCode_ESCAPE          =0x01,
    kKeyCode_1               =0x02,
    kKeyCode_2               =0x03,
    kKeyCode_3               =0x04,
    kKeyCode_4               =0x05,
    kKeyCode_5               =0x06,
    kKeyCode_6               =0x07,
    kKeyCode_7               =0x08,
    kKeyCode_8               =0x09,
    kKeyCode_9               =0x0A,
    kKeyCode_0               =0x0B,
    kKeyCode_MINUS           =0x0C,    /* - on main keyboard */
    kKeyCode_EQUALS          =0x0D,
    kKeyCode_BACK            =0x0E,    /* backspace */
    kKeyCode_TAB             =0x0F,
    kKeyCode_Q               =0x10,
    kKeyCode_W               =0x11,
    kKeyCode_E               =0x12,
    kKeyCode_R               =0x13,
    kKeyCode_T               =0x14,
    kKeyCode_Y               =0x15,
    kKeyCode_U               =0x16,
    kKeyCode_I               =0x17,
    kKeyCode_O               =0x18,
    kKeyCode_P               =0x19,
    kKeyCode_LBRACKET        =0x1A,
    kKeyCode_RBRACKET        =0x1B,
    kKeyCode_RETURN          =0x1C,    /* Enter on main keyboard */
    kKeyCode_LCONTROL        =0x1D,
    kKeyCode_A               =0x1E,
    kKeyCode_S               =0x1F,
    kKeyCode_D               =0x20,
    kKeyCode_F               =0x21,
    kKeyCode_G               =0x22,
    kKeyCode_H               =0x23,
    kKeyCode_J               =0x24,
    kKeyCode_K               =0x25,
    kKeyCode_L               =0x26,
    kKeyCode_SEMICOLON       =0x27,
    kKeyCode_APOSTROPHE      =0x28,
    kKeyCode_GRAVE           =0x29,    /* accent grave */
    kKeyCode_LSHIFT          =0x2A,
    kKeyCode_BACKSLASH       =0x2B,
    kKeyCode_Z               =0x2C,
    kKeyCode_X               =0x2D,
    kKeyCode_C               =0x2E,
    kKeyCode_V               =0x2F,
    kKeyCode_B               =0x30,
    kKeyCode_N               =0x31,
    kKeyCode_M               =0x32,
    kKeyCode_COMMA           =0x33,
    kKeyCode_PERIOD          =0x34,    /* . on main keyboard */
    kKeyCode_SLASH           =0x35,    /* '/' on main keyboard */
    kKeyCode_RSHIFT          =0x36,
    kKeyCode_MULTIPLY        =0x37,    /* * on numeric keypad */
    kKeyCode_LMENU           =0x38,    /* left Alt */
    kKeyCode_SPACE           =0x39,
    kKeyCode_CAPITAL         =0x3A,
    kKeyCode_F1              =0x3B,
    kKeyCode_F2              =0x3C,
    kKeyCode_F3              =0x3D,
    kKeyCode_F4              =0x3E,
    kKeyCode_F5              =0x3F,
    kKeyCode_F6              =0x40,
    kKeyCode_F7              =0x41,
    kKeyCode_F8              =0x42,
    kKeyCode_F9              =0x43,
    kKeyCode_F10             =0x44,
    kKeyCode_NUMLOCK         =0x45,
    kKeyCode_SCROLL          =0x46,    /* Scroll Lock */
    kKeyCode_NUMPAD7         =0x47,
    kKeyCode_NUMPAD8         =0x48,
    kKeyCode_NUMPAD9         =0x49,
    kKeyCode_SUBTRACT        =0x4A,    /* - on numeric keypad */
    kKeyCode_NUMPAD4         =0x4B,
    kKeyCode_NUMPAD5         =0x4C,
    kKeyCode_NUMPAD6         =0x4D,
    kKeyCode_ADD             =0x4E,    /* + on numeric keypad */
    kKeyCode_NUMPAD1         =0x4F,
    kKeyCode_NUMPAD2         =0x50,
    kKeyCode_NUMPAD3         =0x51,
    kKeyCode_NUMPAD0         =0x52,
    kKeyCode_DECIMAL         =0x53,    /* . on numeric keypad */
    kKeyCode_OEM_102         =0x56,    /* < > | on UK/Germany keyboards */
    kKeyCode_F11             =0x57,
    kKeyCode_F12             =0x58,
    kKeyCode_F13             =0x64,    /*                     (NEC PC98) */
    kKeyCode_F14             =0x65,    /*                     (NEC PC98) */
    kKeyCode_F15             =0x66,    /*                     (NEC PC98) */
    kKeyCode_KANA            =0x70,    /* (Japanese keyboard)            */
    kKeyCode_ABNT_C1         =0x73,    /* / ? on Portugese (Brazilian) keyboards */
    kKeyCode_CONVERT         =0x79,    /* (Japanese keyboard)            */
    kKeyCode_NOCONVERT       =0x7B,    /* (Japanese keyboard)            */
    kKeyCode_YEN             =0x7D,    /* (Japanese keyboard)            */
    kKeyCode_ABNT_C2         =0x7E,    /* Numpad . on Portugese (Brazilian) keyboards */
    kKeyCode_NUMPADEQUALS    =0x8D,    /* = on numeric keypad (NEC PC98) */
    kKeyCode_PREVTRACK       =0x90,    /* Previous Track (  kKeyCode_CIRCUMFLEX on Japanese keyboard) */
    kKeyCode_AT              =0x91,    /*                     (NEC PC98) */
    kKeyCode_COLON           =0x92,    /*                     (NEC PC98) */
    kKeyCode_UNDERLINE       =0x93,    /*                     (NEC PC98) */
    kKeyCode_KANJI           =0x94,    /* (Japanese keyboard)            */
    kKeyCode_STOP            =0x95,    /*                     (NEC PC98) */
    kKeyCode_AX              =0x96,    /*                     (Japan AX) */
    kKeyCode_UNLABELED       =0x97,    /*                        (J3100) */
    kKeyCode_NEXTTRACK       =0x99,    /* Next Track */
    kKeyCode_NUMPADENTER     =0x9C,    /* Enter on numeric keypad */
    kKeyCode_RCONTROL        =0x9D,
    kKeyCode_MUTE            =0xA0,    /* Mute */
    kKeyCode_CALCULATOR      =0xA1,    /* Calculator */
    kKeyCode_PLAYPAUSE       =0xA2,    /* Play / Pause */
    kKeyCode_MEDIASTOP       =0xA4,    /* Media Stop */
    kKeyCode_VOLUMEDOWN      =0xAE,    /* Volume - */
    kKeyCode_VOLUMEUP        =0xB0,    /* Volume + */
    kKeyCode_WEBHOME         =0xB2,    /* Web home */
    kKeyCode_NUMPADCOMMA     =0xB3,    /* , on numeric keypad (NEC PC98) */
    kKeyCode_DIVIDE          =0xB5,    /* / on numeric keypad */
    kKeyCode_SYSRQ           =0xB7,
    kKeyCode_RMENU           =0xB8,    /* right Alt */
    kKeyCode_PAUSE           =0xC5,    /* Pause */
    kKeyCode_HOME            =0xC7,    /* Home on arrow keypad */
    kKeyCode_UP              =0xC8,    /* UpArrow on arrow keypad */
    kKeyCode_PGUP            =0xC9,    /* PgUp on arrow keypad */
    kKeyCode_LEFT            =0xCB,    /* LeftArrow on arrow keypad */
    kKeyCode_RIGHT           =0xCD,    /* RightArrow on arrow keypad */
    kKeyCode_END             =0xCF,    /* End on arrow keypad */
    kKeyCode_DOWN            =0xD0,    /* DownArrow on arrow keypad */
    kKeyCode_PGDOWN          =0xD1,    /* PgDn on arrow keypad */
    kKeyCode_INSERT          =0xD2,    /* Insert on arrow keypad */
    kKeyCode_DELETE          =0xD3,    /* Delete on arrow keypad */
    kKeyCode_LWIN            =0xDB,    /* Left Windows key */
    kKeyCode_RWIN            =0xDC,    /* Right Windows key */
    kKeyCode_APPS            =0xDD,    /* AppMenu key */
    kKeyCode_POWER           =0xDE,    /* System Power */
    kKeyCode_SLEEP           =0xDF,    /* System Sleep */
    kKeyCode_WAKE            =0xE3,    /* System Wake */
    kKeyCode_WEBSEARCH       =0xE5,    /* Web Search */
    kKeyCode_WEBFAVORITES    =0xE6,    /* Web Favorites */
    kKeyCode_WEBREFRESH      =0xE7,    /* Web Refresh */
    kKeyCode_WEBSTOP         =0xE8,    /* Web Stop */
    kKeyCode_WEBFORWARD      =0xE9,    /* Web Forward */
    kKeyCode_WEBBACK         =0xEA,    /* Web Back */
    kKeyCode_MYCOMPUTER      =0xEB,    /* My Computer */
    kKeyCode_MAIL            =0xEC,    /* Mail */
    kKeyCode_MEDIASELECT     =0xED     /* Media Select */
} keycode_enum;

// 鼠标状态定义
const int32_t kMouse_LBCLICK  = 0x1;      //  00000000 00000001
const int32_t kMouse_LBCLICKED = 0x2;      //  00000000 00000010
const int32_t kMouse_LBDOWN = 0x4;      //  00000000 00000100
const int32_t kMouse_MBCLICK = 0x8;      //  00000000 00001000
const int32_t kMouse_MBCLICKED = 0x10;      //  00000000 00010000
const int32_t kMouse_MBDOWN = 0x20;      //  00000000 00100000
const int32_t kMouse_RBCLICK = 0x40;      //  00000000 01000000
const int32_t kMouse_RBCLICKED = 0x80;      //  00000000 10000000
const int32_t kMouse_RBDOWN = 0x100;    //  00000001 00000000 
const int32_t kMouse_LBDBLCLK = 0x200;    //  00000010 00000000
const int32_t kMouse_MBDBLCLK = 0x400;    //  00000100 00000000
const int32_t kMouse_RBDBLCLK = 0x800;    //  00001000 00000000
const int32_t kMouse_WHEELUP = 0x1000;    //  00010000 00000000
const int32_t kMouse_WHEELDOWN = 0x2000;    //  00100000 00000000

//外部输入事件定义
typedef enum {
  kEventId_KEY_DOWN,      
  kEventId_KEY_UP,      
  kEventId_MOUSE_MOVE,    
  kEventId_MOUSE_LDRAG_MOVE,
  kEventId_MOUSE_RDRAG_MOVE,  
  kEventId_MOUSE_LBDOWN,    
  kEventId_MOUSE_LBUP,    
  kEventId_MOUSE_LBCLICK,    
  kEventId_MOUSE_RBDOWN,    
  kEventId_MOUSE_RBUP,    
  kEventId_MOUSE_RBCLICK,    
  kEventId_MOUSE_MBDOWN,    
  kEventId_MOUSE_MBUP,    
  kEventId_MOUSE_MBCLICK,    
  kEventId_MOUSE_LDBCLICK,  
  kEventId_MOUSE_MDBCLICK,  
  kEventId_MOUSE_RDBCLICK,  
  kEventId_MOUSE_WHEEL_UP,
  kEventId_MOUSE_WHEEL_DOWN,
  kEventId_MOUSE_LBDOWNREPEAT,
} eventid_enum;

typedef struct {
  eventid_enum id;
  //键盘事件的键盘编号，如果是鼠标事件，此值无效
  keycode_enum keyindex;
  //是否已被处理
  bool processed;
} event_t;

typedef std::vector<event_t> eventqueue;

typedef enum {
  kCaptureStatusNone, //没有被捕获
  kCaptureStatusUI, //被UI捕获
  kCaptureStatusGame, //被Game捕获
} capturestatus_enum;

class VENGINE_API System : public vengine_kernel::Node {

VENGINE_KERNEL_DECLARE_DYNAMIC(vengine_input_System);

 public:
   //获得传输的队列
   virtual eventqueue& get_eventqueue() = 0;
   //查询队列中是否有某事件存在
   virtual bool is_eventexist(eventid_enum id) = 0;
   //捕获状态
   virtual capturestatus_enum getcapture() const = 0;
   virtual void setcapture(capturestatus_enum type) = 0;
   //处理windows消息
   virtual bool messageprocess(HWND hwnd, 
                               uint32_t message, 
                               WPARAM wparam, 
                               LPARAM lparam) = 0;

 public:
   //某个键是否被按下
   virtual bool is_keydown(keycode_enum key) = 0;
   //某个键是否刚被按下
   virtual bool is_keypress(keycode_enum key) = 0;
   //某个键是否刚被抬起
   virtual bool is_keypressed(keycode_enum key) = 0;
   //判断某个系统键是否按下
   virtual bool is_ctrldown() = 0;
   virtual bool is_shiftdown() = 0;
   virtual bool is_altdown() = 0;

 public:
   //设置鼠标
   virtual void set_mouseposition(int32_t x, int32_t y) = 0;
   virtual POINT get_mousepostion() = 0;
   virtual POINT get_mouse_oldpostion() = 0;
   virtual RECT get_mouse_LB_dragrect() = 0;
   virtual RECT get_mouse_MB_dragrect() = 0;
   virtual RECT get_mouse_RB_dragrect() = 0;
   virtual uint32_t get_mouseflag() = 0;
   virtual uint32_t get_mouse_oldflag() = 0;
   virtual uint32_t get_L_putdown_time() = 0;

};

}; //namespace vengine_input

#endif //VENGINE_INPUT_SYSTEM_H_

SIMPLE

  剑侠情缘3 输入角色名

 

  天龙八部资源配置

  总结

  客户端由于是基于windows开发的，所以依赖了许多与之相关的API，如果有疑惑可以提出或查询msdn资料手册。在这里由于时间关系，也不多详细讲解了，这一部分大家只要了解一下两个模块提供的方法就行。比如资源模块的只有两个API：加载与释放，而输入模块有捕获以及按键的状态。下节讲的是db模块，前端比较重要的文件数据处理，希望大家不要错过这节，因为配置的数据都是由此模块提供。