{"id":1345,"date":"2018-06-07T17:20:51","date_gmt":"2018-06-07T09:20:51","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1345"},"modified":"2018-06-07T17:20:51","modified_gmt":"2018-06-07T09:20:51","slug":"lua-%e8%84%9a%e6%9c%ac%e9%87%8d%e5%90%af-%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1345","title":{"rendered":"Lua \u811a\u672c\u91cd\u542f \u673a\u5236"},"content":{"rendered":"

\u4e0d\u7ba1\u662f \u73b0\u5728\u5f00\u53d1\u4e2d\u7684\u6e38\u620f\u670d\u52a1\u7aef, \u8fd8\u662f\u8fd1\u671flove2D \u5f00\u53d1\u7684\u524d\u7aef, \u90fd\u4f7f\u7528 Lua \u505a\u811a\u672c\u5f15\u64ce, \u9700\u8981\u6d89\u53ca\u5230 \u811a\u672c\u7684\u4fee\u6539\u548c\u91cd\u542f. \u7b2c\u4e00\u79cd\u65b9\u6cd5\u662f \u5199\u4e2a\u5c01\u88c5\u51fd\u6570, \u91cc\u9762\u8fdb\u884c\u5bf9\u6240\u6709 lua \u811a\u672c\u6587\u4ef6\u7684 require() \u64cd\u4f5c, \u8fd9\u5c31\u8981\u6c42 :<\/p>\n

1.\u5bf9\u6bcf\u4e2a\u652f\u6301\u91cd\u65b0\u52a0\u8f7d\u7684\u6587\u4ef6\u8fdb\u884c<\/p>\n

\n
package.loaded[ filename]  = nil\r\nrequire( filename)<\/pre>\n<\/div>\n
2.\u6587\u4ef6\u52a0\u8f7d\u8981\u4fdd\u6301\u4e00\u5b9a\u7684\u987a\u5e8f, \u4ee5\u514d\u9020\u6210\u8d44\u6e90\u7684\u9519\u4e71.<\/p>\n
\u5c31\u5f53\u524d\u4f7f\u7528 love2D \u524d\u7aef\u6765\u770b, \u5176\u5b9e\u53ea\u6709\u4e00\u4e2a “\u542f\u52a8”\u6587\u4ef6: main.lua, \u5e76\u5728\u5176\u5185\u8fdb\u884c \u5404\u4e2a\u5b50\u529f\u80fd\u811a\u672c\u7684 require \u52a0\u8f7d.\u5982\u679c\u5728 \u91cd\u65b0\u52a0\u8f7d\u65f6, \u81ea\u52a8\u6309\u7167 main.lua \u63d0\u4f9b\u7684<\/p>\n
require(…) \u987a\u5e8f\u8fdb\u884c\u81ea\u52a8\u52a0\u8f7d\u5c31\u597d\u4e86, \u5e76\u4e14\u65e0\u9700\u50cf\u4e0a\u9762\u7684\u9488\u5bf9\u6bcf\u4e2a\u6587\u4ef6\u7f16\u5199:<\/p>\n
\n
function reload_files()\r\n    require( f1)\r\n    require( f2)\r\n    ...\r\n\r\nend<\/pre>\n<\/div>\n
\u6574\u4f53\u76ee\u6807\u6709\u51e0\u4e2a:
\n1.\u65e0\u9700\u9759\u6001\u7ef4\u62a4\u4e00\u4e2a\u91cd\u65b0\u52a0\u8f7d\u7684\u6587\u4ef6, \u6216\u51fd\u6570, \u8fdb\u884c\u7f16\u5199 \u5404\u4e2a\u811a\u672c\u6587\u4ef6\u7684 require() \u8fdb\u884c\u91cd\u65b0\u52a0\u8f7d;<\/p>\n
2.\u80fd\u591f\u6309\u7167\u5f53\u524d\u6587\u4ef6\u4e2d\u5404\u4e2a\u6587\u4ef6\u7684 \u987a\u5e8f\u8fdb\u884c\u52a0\u8f7d, \u5373\u5982\u679c<\/p>\n
\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n
--main.lua\r\n\r\nrequire( \"config\")\r\nrequire( \"function\")\r\nrequire( \"globals\")\r\nrequire( \"gameplayer\")\r\nrequire( \"scene\") \r\n\r\nNeedReset = true\r\n...<\/pre>\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n<\/div>\n
\u8fd9\u79cd\u987a\u5e8f\u7f16\u5199main.lua( \u6216\u5176\u4ed6\u6587\u4ef6), \u90fd\u5c3d\u91cf\u4fdd\u6301 config > function > globals > gameplayer > scene \u7684\u987a\u5e8f\u8fdb\u884c\u91cd\u65b0\u52a0\u8f7d;
\n3.\u80fd\u591f\u907f\u514d “\u5df2\u88ab\u91cd\u65b0\u8bb0\u8f7d\u7684\u6587\u4ef6” \u518d\u6b21\u88ab\u91cd\u65b0\u52a0\u8f7d;<\/p>\n
4.\u80fd\u591f\u907f\u514d \u5d4c\u5957\u9012\u5f52\u52a0\u8f7d;<\/p>\n
5.\u80fd\u591f\u5bf9 \u5916\u90e8\u5e93\u8fdb\u884c\u8bc6\u522b, \u5373<\/p>\n
\n
require( \"bit\")<\/pre>\n<\/div>\n
\u662f\u5728\u52a0\u8f7d “\u4f4d\u64cd\u4f5c”\u7684 \u5e93 bit.dll , \u800c\u4e0d\u662f bit.lua, \u4e0d\u5e94\u8be5\u8fdb\u884c \u5d4c\u5957\u52a0\u8f7d;
\n6.\u80fd\u591f\u8bc6\u522b\u67d0\u4e9b “\u7981\u6b62\u91cd\u65b0\u52a0\u8f7d”\u7684\u6587\u4ef6, \u4f8b\u5982:<\/p>\n
\n
-- global.lua\r\n\r\nrequire( \"skill_cfg\")\r\nrequire( \"effect_cfg\")\r\n\r\ng_object_list = {}<\/pre>\n<\/div>\n
global.lua \u6587\u4ef6\u672c\u8eab\u4e0d\u80fd\u88ab \u591a\u6b21require(), \u4e0d\u7136 g_object_list \u5168\u5c40\u53d8\u91cf\u4f1a\u88ab\u91cd\u7f6e, \u4f46\u53c8\u80fd\u591f\u4e0d\u4f1a\u5f71\u54cd skill_cfg \u548c effect_cfg \u7684\u91cd\u65b0\u52a0\u8f7d;<\/p>\n
7.\u5e94\u8be5\u8981\u652f\u6301 “\u540e\u5e8f” \u65b9\u5f0f\u8fdb\u884c\u52a0\u8f7d, \u8bb0\u8f7d\u52a0\u8f7d main.lua \u8fc7\u7a0b\u4e2d, \u5e94\u8be5\u73b0\u5728\u9012\u5f52\u52a0\u8f7d\u5b8c \u5b50\u811a\u672c\u6587\u4ef6:<\/p>\n
\n
require( \"config\")\r\nrequire( \"function\")\r\nrequire( \"globals\")\r\nrequire( \"gameplayer\")\r\nrequire( \"scene\")<\/pre>\n<\/div>\n
\u7136\u540e\u5728\u8fdb\u884c \u52a0\u8f7d main.lua \u7684\u540e\u5e8f\u5185\u5bb9:<\/p>\n
\n
NeedReset = true\r\n...<\/pre>\n<\/div>\n
8.\u80fd\u591f \u8bc6\u522b \u6587\u4ef6\u4e2d\u7684 require(…) \u884c.<\/p>\n
 <\/p>\n
\u5927\u6982\u8fd9\u00a08 \u70b9\u76ee\u6807 \u548c\u8981\u6c42, \u4f46\u5bf9\u4e8e\u7b2c7\u70b9, \u6709\u4e2a\u95ee\u9898:<\/p>\n
\u5047\u8bbe \u91cd\u65b0\u52a0\u8f7d \u7684 \u9012\u5f52\u51fd\u6570\u4e3a<\/p>\n
\n
function recursive_reload( filename)\r\n\r\n \u3000\u3000package.loaded[ filename] = nil  \r\n\u3000\u3000 require( filename )\r\n\r\nend<\/pre>\n<\/div>\n
\u5e76\u4e14main.lua \u7684\u5185\u5bb9\u7b80\u5355\u6709\u5982:<\/p>\n
\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n
--main.lua\r\n\r\nrequire( \"config\") \r\nrequire( \"function\") \r\nrequire( \"globals\") \r\nrequire( \"gameplayer\") \r\nrequire( \"scene\")\r\n\r\nNeedReset = true<\/pre>\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n<\/div>\n
 <\/p>\n
\u5728 \u89e6\u53d1\u91cd\u65b0\u52a0\u8f7d\u7684 \u5165\u53e3\u4e2d:<\/p>\n
\n
function main_reloader()  \r\n    recursive_reload( \"mian\" ) \r\nend<\/pre>\n<\/div>\n
\u8c03\u7528 main_reloader() \u8fdb\u884c\u91cd\u65b0\u52a0\u8f7d\u7684\u8fc7\u7a0b \u5c55\u5f00\u5c06\u4f1a\u5982:<\/p>\n
\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n
--\u5148\u9012\u5f52\u5730\u4f7f\u7528 recursive_reload() \u91cd\u65b0\u52a0\u8f7d\u5b50\u6587\u4ef6 \r\n\r\npackage.loaded[ 'config'] = nil \r\nrequire( 'config')\r\n\r\npackage.loaded[ 'function'] = nil \r\nrequire( 'function')\r\n\r\npackage.loaded[ 'globals'] = nil \r\nrequire( 'globals')\r\n\r\npackage.loaded[ 'gameplayer'] = nil \r\nrequire( 'gameplayer')\r\n\r\npackage.loaded[ 'scene'] = nil \r\nrequire( 'scene')\r\n\r\n--\u518d\u6700\u540e\u52a0\u8f7d main.lua \r\npackage.loaded[ 'main'] = nil \r\nrequire( 'main') --\u4f46\u5c31\u5728\u8fd9\u4e2a\u64cd\u4f5c\u4e2d, \u8fd8\u4f1a\u6d89\u53ca\u5230\u5d4c\u5957\u7684:<\/pre>\n
\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n
require( \"config\")  \r\nrequire( \"function\")  \r\nrequire( \"globals\")  \r\nrequire( \"gameplayer\")  \r\nrequire( \"scene\")  \r\n\r\nNeedReset = true<\/pre>\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n<\/div>\n
<\/pre>\n
 <\/p>\n
<\/pre>\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n<\/div>\n
\u8fd9 5 \u4e2a \u6587\u4ef6\u4e0d\u5c31\u4f1a\u88ab \u591a\u6b21 require() \u4e86\u5417? \u867d\u7136 \u5b8c\u6574\u7684 recursive_reload() \u80fd\u591f\u9632\u6b62 “\u663e\u793a\u7684” \u91cd\u590drequire(),\u00a0 \u4f46\u662f\u4e0d\u80fd\u7981\u6b62 “\u9690\u5f0f\u7684” require() \u5176\u5b9e, \u5c31\u7b97\u7b2c\u4e8c\u6b21\u7684 “\u9690\u5f0f” requre() \u786e\u5b9e\u4f1a\u8c03\u7528, \u4f46\u4e0d\u4f1a\u91cd\u65b0\u52a0\u8f7d \u5b9e\u9645\u7684\u7269\u7406\u6587\u4ef6, \u89c1\u4e8e lua \u5f00\u53d1\u624b\u518c\u4e0a:<\/p>\n
\n
require (modname) Loads the given module. \r\n\r\nThe function starts by looking into the package.loaded table to determine whether modname is already loaded. \r\nIf it is, then require returns the value stored at package.loaded[modname]. \r\nOtherwise, it tries to find a loader for the module.<\/pre>\n<\/div>\n
\u5373\u662f\u8bf4, \u53ea\u8981\u66fe\u7ecf\u52a0\u8f7d\u4e86 \u6587\u4ef6, \u5e76\u5728 package.loaded \u5185\u6709\u8bb0\u5f55, \u540e\u5e8f\u7684 requre() \u5c06\u4f1a\u76f4\u63a5\u8fd4\u56de.<\/p>\n
\u8fd9 5 \u4e2a \u6587\u4ef6\u4e0d\u5c31\u4f1a\u88ab \u591a\u6b21 require() \u4e86\u5417? \u867d\u7136 \u5b8c\u6574\u7684 recursive_reload() \u80fd\u591f\u9632\u6b62 “\u663e\u793a\u7684” \u91cd\u590drequire(),\u00a0 \u4f46\u662f\u4e0d\u80fd\u7981\u6b62 “\u9690\u5f0f\u7684” require() \u5176\u5b9e, \u5c31\u7b97\u7b2c\u4e8c\u6b21\u7684 “\u9690\u5f0f” requre() \u786e\u5b9e\u4f1a\u8c03\u7528, \u4f46\u4e0d\u4f1a\u91cd\u65b0\u52a0\u8f7d \u5b9e\u9645\u7684\u7269\u7406\u6587\u4ef6, \u89c1\u4e8e lua \u5f00\u53d1\u624b\u518c\u4e0a:<\/p>\n
require (modname) Loads the given module. The function starts by looking into the package.loaded table to determine whether modname is already loaded. If it is, then require returns the value stored at package.loaded[modname]. Otherwise, it tries to find a loader for the module.<\/p>\n
\u5373\u662f\u8bf4, \u53ea\u8981\u66fe\u7ecf\u52a0\u8f7d\u4e86 \u6587\u4ef6, \u5e76\u5728 package.loaded \u5185\u6709\u8bb0\u5f55, \u540e\u5e8f\u7684 requre() \u5c06\u4f1a\u76f4\u63a5\u8fd4\u56de.<\/p>\n
 <\/p>\n
\u5177\u4f53\u8fd0\u884c\u6548\u679c:<\/p>\n
\"\"<\/p>\n
\u53ea\u662f\u5177\u4f53\u7684\u5b9e\u73b0\u4ee3\u7801:<\/p>\n
 <\/p>\n
\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n
-- \u5916\u90e8\u5e93 \u767b\u8bb0\r\nlocal package_list = {\r\n    bit = true \r\n}\r\n\r\n-- \u5168\u5c40\u6027\u8d28\u7c7b\/\u6216\u7981\u6b62\u91cd\u65b0\u52a0\u8f7d\u7684\u6587\u4ef6\u8bb0\u5f55\r\nlocal ignored_file_list = {\r\n    global = true ,\r\n}\r\n\r\n--\u5df2\u91cd\u65b0\u52a0\u8f7d\u7684\u6587\u4ef6\u8bb0\u5f55\r\nlocal loaded_file_list = {}\r\n\r\n--\u89c6\u56fe\u6392\u7248\u63a7\u5236\r\nfunction leading_tag( indent )\r\n    -- body\r\n    if indent < 1 then\r\n        return ''\r\n    else\r\n        return string.rep( '    |',  indent - 1  ) .. '    '\r\n    end\r\nend\r\n\r\n--\u5173\u952e\u9012\u5f52\u91cd\u65b0\u52a0\u8f7d\u51fd\u6570\r\n--filename \u6587\u4ef6\u540d\r\n--indent   \u9012\u5f52\u6df1\u5ea6, \u7528\u4e8e\u63a7\u5236\u6392\u7248\u663e\u793a\r\nfunction recursive_reload( filename, indent )\r\n    -- body\r\n    if package_list[ filename] then \r\n        --\u5bf9\u4e8e \u5916\u90e8\u5e93, \u53ea\u8fdb\u884c\u91cd\u65b0\u52a0\u8f7d, \u4e0d\u505a\u9012\u5f52\u5b50\u6587\u4ef6\r\n        --\u5378\u8f7d\u65e7\u6587\u4ef6\r\n        package.loaded[ filename] = nil\r\n\r\n        --\u88c5\u8f7d\u4fe1\u6587\u4ef6\r\n        require( filename )\r\n\r\n        --\u6807\u8bb0\"\u5df2\u88ab\u91cd\u65b0\u52a0\u8f7d\"\r\n        loaded_file_list[ filename] = true\r\n\r\n        print( leading_tag(indent) .. filename .. \"... done\" )\r\n        return true\r\n    end\r\n\r\n    --\u666e\u901a\u6587\u4ef6\r\n    --\u8fdb\u884c \"\u5df2\u88ab\u91cd\u65b0\u52a0\u8f7d\" \u68c0\u6d4b\r\n    if loaded_file_list[ filename] then \r\n        print( leading_tag(indent) .. filename .. \"...already been reloaded IGNORED\" )\r\n        return true\r\n    end\r\n\r\n    --\u8bfb\u53d6\u5f53\u524d\u6587\u4ef6\u5185\u5bb9, \u4ee5\u8fdb\u884c\u5b50\u6587\u4ef6\u9012\u5f52\u91cd\u65b0\u52a0\u8f7d\r\n    local file, err = io.open( filename..\".lua\" )\r\n    if file == nil then \r\n        print( string.format( \"failed to reaload file(%s), with error:%s\", filename, err or \"unknown\" ) )\r\n        return false\r\n    end\r\n\r\n    print( leading_tag(indent) .. filename .. \"...\" )\r\n\r\n    --\u8bfb\u53d6\u6bcf\u4e00\u884c\r\n    for line in file:lines() do \r\n        \r\n        --\u8bc6\u522b require(...)\u884c, \u6b63\u5219\u8868\u8fbe? \u6a21\u5f0f\u5339\u914d? \u5e76\u62fe\u53d6\u6587\u4ef6\u540d \u5230 subFileName\r\n        line = string.gsub( line, '%s', '' )\r\n        local subFileName = nil \r\n        local ret = string.gsub( line, '^require%(\"(.+)\"%)', function ( s ) subFileName = s end )\r\n\r\n        if subFileName then\r\n            --\u8fdb\u884c\u9012\u5f52 \r\n            local success = recursive_reload( subFileName, indent + 1 )\r\n            if not success then \r\n                print( string.format( \"failed to reload sub file of (%s)\", filename ) )\r\n                return false \r\n            end\r\n\r\n        end\r\n        \r\n    end    \r\n\r\n\r\n    -- \"\u540e\u5e8f\" \u5904\u7406\u5f53\u524d\u6587\u4ef6...\r\n\r\n    \r\n    if ignored_file_list[ filename] then\r\n        --\u5ffd\u7565 \"\u7981\u6b62\u88ab\u91cd\u65b0\u52a0\u8f7d\"\u7684\u6587\u4ef6\r\n        print( leading_tag(indent) .. filename .. \"... IGNORED\" )\r\n        return true\r\n    else\r\n\r\n        --\u5378\u8f7d\u65e7\u6587\u4ef6\r\n        package.loaded[ filename] = nil\r\n\r\n        --\u88c5\u8f7d\u65b0\u6587\u4ef6\r\n        require( filename )\r\n\r\n        --\u8bbe\u7f6e\"\u5df2\u88ab\u91cd\u65b0\u52a0\u8f7d\" \u6807\u8bb0\r\n        loaded_file_list[ filename] = true\r\n        print( leading_tag(indent) .. filename .. \"... done\" )\r\n        return true\r\n    end\r\nend\r\n\r\n--\u4e3b\u5165\u53e3\u51fd\u6570\r\nfunction reload_script_files()\r\n    \r\n    print( \"[reload_script_files...]\")\r\n\r\n    loaded_file_list = {}\r\n\r\n    --\u672c\u9879\u76ee\u662f\u4ee5 main.lua \u4e3a\u4e3b\u6587\u4ef6\r\n    recursive_reload( \"main\", 0 )\r\n    \r\n    print( \"[reload_script_files...done]\")\r\n\r\n    return \"reload ok\"\r\nend<\/pre>\n
\"\u590d\u5236\u4ee3\u7801\"<\/a><\/span><\/div>\n<\/div>\n
\u5907\u6ce8: \u8be5\u673a\u5236\u53ea\u652f\u6301\u7b80\u5355\u6587\u4ef6\u76ee\u5f55<\/p>\n","protected":false},"excerpt":{"rendered":"
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