cocos2d-lua 控制檯輸入Lua指令方便調試

時間 2020-05-08

標籤 cocos2d cocos lua 控制檯輸入指令方便調試欄目 Cocos2d-x 简体版

原文原文鏈接

用腳本進行開發，若是不能實時去輸入指令，就喪失了腳本的一大特點，因此對cocos2d-x程序稍微修改下，使其能夠直接從控制檯讀入lua指令，方便調試。html

1 首先在行首加入lua的引用，以下windows

1 #include "main.h"
2 #include "AppDelegate.h"
3 #include "cocos2d.h"
4 #include <assert.h>
5 #include <windows.h>
6 #include <sys/stat.h>
7 #include "CCLuaEngine.h"

1、添加引用

2 在main函數前面插入如下代碼app

 1 #ifdef USE_WIN32_CONSOLE  2 BOOL g_bAppRun = FALSE;  3 char g_szBuffer[1024];  4 char g_szBuffer_copy[1024];  5 DWORD WINAPI ThreadReadConsole(LPVOID lpParam)  6 {  7     HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);  8     while(g_bAppRun)  9  { 10         DWORD dwNum = 0; 11         ReadConsoleA(hConsole, g_szBuffer, 1023, &dwNum, NULL); 12         if (dwNum) 13  { 14             g_szBuffer[dwNum] = '\0'; 15             memcpy(g_szBuffer_copy, g_szBuffer, dwNum + 1); 16  } 17  } 18     return 0; 19 } 20  
21 int FetchConsoleCmd(lua_State* L) 22 { 23     if ('\0' == g_szBuffer_copy[0]) 24  { 25         return 0; 26  } 27  lua_pushstring(L, g_szBuffer_copy); 28     g_szBuffer_copy[0] = '\0'; 29     return 1; 30 } 31 #endif

main函數前插入代碼

3 在main函數裏修改以下ide

 1 #ifdef USE_WIN32_CONSOLE  2  AllocConsole();  3     freopen("CONIN$", "r", stdin);  4     freopen("CONOUT$", "w", stdout);  5     freopen("CONOUT$", "w", stderr);  6  
 7     g_bAppRun = TRUE;  8     CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadReadConsole,NULL,0,NULL);  9 #endif
10  
11     // create the application instance
12  AppDelegate app; 13     lua_State* L = LuaEngine::getInstance()->getLuaStack()->getLuaState(); 14     lua_register(L, "FetchConsoleCmd", FetchConsoleCmd); 15     int ret = Application::getInstance()->run(); 16  
17 #ifdef USE_WIN32_CONSOLE 18  FreeConsole(); 19     g_bAppRun = FALSE; 20 #endif

修改main函數

4 添加lua循環函數

這裏使用計時器，其實能夠在主循環中添加操做ui

 1  cc.Director:getInstance():getScheduler():scheduleScriptFunc(function()  2         if FetchConsoleCmd then  3             local string = FetchConsoleCmd()  4             if string then  5                 local cmd = loadstring(string)  6                 if cmd then  7  xpcall(cmd, __G__TRACKBACK__)  8  end  9  end 10  end 11     end, 0, false)

添加循環監聽計時器

5 改編碼

 1 local printByte = 36     -- "$"號的內部數字編碼
 2 local debug_console = setmetatable({}, {__index = _G})  3 
 4 -- 對輸入的字符串進行操做（可自行擴展）
 5 function debug_console:runConsloe()  6     if FetchConsoleCmd then
 7         self.str = FetchConsoleCmd()  8         self.isPrint = false
 9         if self.str then
10             -- 重載 $ 符號的字符串操做
11             if string.byte(self.str, 1) == printByte then
12                 self.str = string.sub(self.str, 2) 13                 self.str = "return " .. self.str 14                 self.isPrint = true
15             end
16 
17             local cmd = loadstring(self.str) 18             if cmd  then
19                 -- 設置函數執行環境
20                 local msg = setfenv(cmd, debug_console)() 21                 if self.isPrint then
22                     print(dump(msg)) 23                 end
24             end
25         end
26     end
27 end
28 
29 -- 更新文件
30 function debug_console.updateFile(filePath) 31     local pos      = string.find(filePath,"[^%/.]*$"); 32     local module_name = string.sub(filePath, pos); 33 
34     local mod = package.loaded[module_name]; 35     if not mod then
36         mod = package.loaded[module_name.."_manager"]; 37     end
38 
39     package.loaded[filePath] = false; 40     local ret = require(filePath); 41 
42     mod = package.loaded[module_name]; 43     if not mod then
44         mod = package.loaded[module_name.."_manager"]; 45     end
46 
47     return ret; 48 end
49 
50 return debug_console