{"id":4153,"date":"2020-03-02T19:42:06","date_gmt":"2020-03-02T11:42:06","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4153"},"modified":"2020-03-02T19:42:06","modified_gmt":"2020-03-02T11:42:06","slug":"lua%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%ef%bc%88%e4%ba%8c%ef%bc%89%ef%bc%9acpu%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4153","title":{"rendered":"Lua\u6027\u80fd\u4f18\u5316\uff08\u4e8c\uff09\uff1aCPU\u6027\u80fd\u4f18\u5316"},"content":{"rendered":"
\u539f\u6587\u5730\u5740<\/a><\/div>\n
<\/div>\n
\n
\n

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\u5e38\u89c1\u4f18\u5316<\/h2>\n

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1. \u4f7f\u7528\u5c40\u90e8\u53d8\u91cf<\/h2>\n

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    \n
  1. \u51fd\u6570<\/li>\n
  2. \u5bf9\u8c61<\/li>\n<\/ol>\n

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    \n
    function<\/span> memoize<\/span>(<\/span>f<\/span>)<\/span>\r\n    local<\/span> mem<\/span> =<\/span> {}<\/span>\r\n    setmetatable<\/span>(<\/span>mem<\/span>,<\/span> {<\/span> __mode<\/span> =<\/span> \"kv\"<\/span> })<\/span>\r\n    return<\/span> function<\/span>(<\/span>x<\/span>)<\/span>\r\n        local<\/span> r<\/span> =<\/span> mem<\/span>[<\/span>x<\/span>]<\/span>\r\n        if<\/span> r<\/span> ==<\/span> nil<\/span> then<\/span>\r\n            r<\/span> =<\/span> f<\/span>(<\/span>x<\/span>)<\/span>\r\n            mem<\/span>[<\/span>x<\/span>]<\/span> =<\/span> r<\/span>\r\n        end<\/span>\r\n        return<\/span> r<\/span>\r\n    end<\/span>\r\nend<\/span><\/code><\/pre>\n<\/div>\n
    2. \u4f7f\u7528\u5bf9\u8c61\u6c60<\/h2>\n
    \u73b0\u5728\u5927\u90e8\u5206\u56e2\u961f\uff0c\u5728\u4f7f\u7528Lua\u7684\u65f6\u5019\uff0c\u4e00\u822c\u53ea\u7528\u6765\u5199\u4e00\u4e9bUI\u754c\u9762\u3002\u800cUI\u754c\u9762\u7ecf\u5e38\u4ea4\u7ed9\u9879\u76ee\u7ec4\u7684\u65b0\u4eba\u6765\u505a\uff0c\u4ee5\u719f\u6089\u9879\u76ee\u4ee3\u7801\uff0c\u6240\u4ee5\u8fd9\u91cc\u7684\u6027\u80fd\u95ee\u9898\u5f88\u5bb9\u6613\u88ab\u5927\u5bb6\u6240\u5ffd\u89c6\u3002\u8fd9\u91cc\u7ecf\u5e38\u9047\u5230\u7684\u6027\u80fd\u95ee\u9898\u4e00\u822c\u51fa\u73b0\u5728\u590d\u6742\u6eda\u52a8\u5217\u8868\u7684\u91cd\u7528\u3001\u6d88\u606f\u534f\u8bae\u7684\u91cd\u7528\u3001\u4ee5\u53caC#\u5bf9\u8c61\u7684\u91cd\u7528\u4e2d\u3002\u5728\u6211\u5e2e\u9694\u58c1\u9879\u76ee\u7ec4\u4f18\u5316\u6027\u80fd\u7684\u65f6\u5019\uff0c\u5c31\u53d1\u73b0\u4e00\u4e2a\u6709\u8da3\u7684\u73b0\u8c61\u3002\u4ed6\u4eec\u9879\u76eeLua\u4f7f\u7528\u7684\u4e0d\u91cd\u5ea6\uff0c\u4f46\u662f\u5e73\u5747\u6bcf\u5e27\u5206\u914d\u5185\u5b583.4kb\uff0c\u800cRO\u9ad8\u5cf0\u65f6\u671f\u7684\u5185\u5b58\u5206\u914d\u4e5f\u53ea\u67090.5kb\uff0c\u662fRO\u768417\u500d\u3002\u6bcf\u5e27Lua\u8017\u65f6\u57280.47ms\uff0c\u662fRO\u768420%-30%\u3002\u603b\u4f53\u6765\u8bf4\uff0c\u5bf9\u4e8e\u666e\u901a\u4f7f\u7528Lua\u7684\u56e2\u961f\u6765\u8bf4\u8fd9\u91cc\u9762\u5df2\u7ecf\u6709\u5f88\u5927\u7684\u6027\u80fd\u95ee\u9898\u4e86\uff0c\u53ea\u662f\u603b\u91cf\u6bd4\u8f83\u5c11\uff0c\u5f71\u54cd\u4e0d\u662f\u90a3\u4e48\u5927\u3002\u800c\u9020\u6210\u8fd9\u4e48\u5927\u6027\u80fd\u95ee\u9898\u7684\u539f\u56e0\u53ea\u67092\u4e2a\uff0c\u4e00\u4e2a\u662f\u5728\u4e00\u4e2a\u5b9a\u65f6\u5668\u5185\u9891\u7e41\u5730\u7ed9GameObject\u8bbe\u4f4d\u7f6e\uff0c\u4e00\u4e2a\u662f\u6bcf\u9694\u51e0\u5e27\u6536\u53d1\u4e00\u6761\u79fb\u52a8\u6d88\u606f\u3002\u6700\u540e\u8bbe\u4f4d\u7f6e\u65f6\u907f\u514d\u4e86\u91cd\u590d\u521b\u5efaLuaVector3\uff0c\u79fb\u52a8\u6d88\u606f\u505a\u4e86\u4e2a\u7b80\u5355\u7684\u5bf9\u8c61\u6c60\u3002\u4f18\u5316\u4e86\u8fd9\u4e24\u6761\u4ee5\u540e\uff0c\u4e0d\u7ba1\u662f\u6bcf\u5e27\u5206\u914d\u5185\u5b58\uff0c\u8fd8\u662fCPU\u8017\u65f6\u90fd\u964d\u4f4e\u4e8650%\u3002\u800c\u5728\u6240\u6709\u7684\u9879\u76ee\u4e2d\uff0c\u9664\u4e86\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\uff0c\u5176\u4ed6\u4f18\u5316\u4e2d\u6700\u663e\u8457\u7684\u5c31\u662f\u4f7f\u7528\u5bf9\u8c61\u6c60\u4e86\u3002\u56e0\u4e3a\u6b63\u786e\u5730\u4f7f\u7528\u5bf9\u8c61\u6c60\u80fd\u6709\u6548\u5730\u51cf\u5c11\u521b\u5efa\u65b0\u5bf9\u8c61\u7684\u8fc7\u7a0b\uff0c\u5728Lua\u4e2d\u4e5f\u5c31\u662f__newindex\u8fd9\u4e2a\u51fd\u6570\u7684\u8017\u65f6\u660e\u663e\u51cf\u5c11\u3002__newindex\u51cf\u5c11\u4e86\u4ee5\u540e\uff0c\u4e0d\u4ec5\u907f\u514d\u4e86\u9891\u7e41\u5f00\u8f9f\u56de\u6536\u5185\u5b58\uff0c\u8fd8\u80fd\u907f\u514d\u989d\u5916\u7684CPU\u5f00\u9500\u3002\u5c24\u5176\u662f\u4f7f\u7528\u5bf9\u8c61\u6c60\u7f13\u5b58\u4e00\u4e2a\u7ecf\u5e38\u590d\u7528\u7684\u5bf9\u8c61\u65f6\uff0c\u8fd9\u6837\u7684\u4f18\u5316\u66f4\u660e\u663e\uff0c\u6bd4\u5982\u8bf4LuaVector3\u3001GameObject\u3001\u6eda\u52a8\u5217\u8868\u4e2d\u7684\u5bf9\u8c61\u3002<\/p>\n
    3. \u5b57\u7b26\u4e32\u62fc\u63a5\u4f7f\u7528table.concat<\/h2>\n
    \u8fd9\u4e2a\u95ee\u9898\u5728\u5f88\u591a\u4f18\u5316Tips\u91cc\u9762\u7ecf\u5e38\u63d0\u5230\uff0c\u76f8\u4fe1\u5927\u5bb6\u4e5f\u4e0d\u964c\u751f\u3002\u7a76\u5176\u539f\u56e0\uff0c\u662f\u56e0\u4e3aLua\u7684string\u662f\u5185\u90e8\u590d\u7528\u7684\uff0c\u5f53\u6211\u4eec\u521b\u5efa\u5b57\u7b26\u4e32\u7684\u65f6\u5019\uff0cLua\u9996\u5148\u4f1a\u68c0\u67e5\u5185\u90e8\u662f\u5426\u5df2\u7ecf\u6709\u76f8\u540c\u7684\u5b57\u7b26\u4e32\u4e86\uff0c\u5982\u679c\u6709\u76f4\u63a5\u8fd4\u56de\u4e00\u4e2a\u5f15\u7528\uff0c\u5982\u679c\u6ca1\u6709\u624d\u521b\u5efa\u3002\u8fd9\u4f7f\u5f97Lua\u4e2dstring\u7684\u6bd4\u8f83\u548c\u8d4b\u503c\u975e\u5e38\u5730\u5feb\u901f\uff0c\u56e0\u4e3a\u53ea\u8981\u6bd4\u8f83\u5f15\u7528\u662f\u5426\u76f8\u7b49\u3001\u6216\u8005\u76f4\u63a5\u8d4b\u503c\u5f15\u7528\u5c31\u53ef\u4ee5\u4e86\u3002\u800c\u53e6\u4e00\u65b9\u9762\u8fd9\u4e2a\u673a\u5236\u4f7f\u5f97Lua\u5728\u62fc\u63a5\u5b57\u7b26\u4e32\u4e0a\u5f00\u9500\u6bd4\u8f83\u5927\uff0c\u56e0\u4e3a\u5728\u4e00\u4e9b\u76f4\u63a5\u6301\u6709\u5b57\u7b26\u4e32buffer\u7684\u8bed\u8a00\u4e2d\uff0c\u5f80\u5f80\u53ef\u4ee5\u76f4\u63a5\u628a\u540e\u8005\u7684buffer\u63d2\u5165\u5230\u524d\u8005\u7684buffer\u7684\u672b\u5c3e\uff0c\u800cLua\u5148\u8981\u904d\u5386\u67e5\u627e\u662f\u5426\u6709\u76f8\u540c\u7684\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f1a\u628a\u540e\u8005\u6574\u4e2a\u62f7\u8d1d\u7136\u540e\u62fc\u63a5\u3002\u5c3d\u7ba1\u662f\u8fd9\u6837\uff0c\u6211\u4eec\u8fd8\u662f\u6709\u4e00\u4e9b\u624b\u6bb5\u6765\u4f18\u5316Lua\u7684\u5b57\u7b26\u4e32\u62fc\u63a5\uff0c\u4f7f\u7528table.concat\u6765\u4ee3\u66ff..\u3002\u901a\u8fc7\u67e5\u770bLua\u7684\u6e90\u7801\u53ef\u4ee5\u53d1\u73b0\uff0c\u8fd9\u91cc\u7684\u539f\u7406\u4e3b\u8981\u662ftable.concat\u53ea\u4f1a\u521b\u5efa\u4e00\u5757buffer\uff0c\u7136\u540e\u5728\u6b64\u62fc\u63a5\u6240\u6709\u7684\u5b57\u7b26\u4e32\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u7528table\u6a21\u62dfbuffer\u3002\u800c..\u5219\u6bcf\u6b21\u62fc\u63a5\u90fd\u4f1a\u4ea7\u751f\u4e00\u4e32\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u5f00\u8f9f\u4e00\u5757\u65b0\u7684buffer\u3002\u8fd9\u4e2a\u95ee\u9898\u5728\u300aProgramming in Lua\u300b\u4e00\u4e66\u4e5f\u6709\u63d0\u53ca:<\/p>\n
    \n
    local<\/span> buff<\/span> =<\/span> \"\"<\/span>\r\nfor<\/span> line<\/span> in<\/span> io.lines<\/span>()<\/span> do<\/span>\r\n       buff<\/span> =<\/span> buff<\/span> ..<\/span> line<\/span> ..<\/span> \"<\/span>\\n<\/span>\"<\/span>\r\nend<\/span>\r\n--\u8fd9\u6bb5\u4ee3\u7801\u8bfb\u53d6\u4e00\u4e2a350kb\u5927\u5c0f\u6587\u4ef6\u7684\u65f6\u5019\u9700\u8981\u7ea61\u5206\u949f\uff0c\u540c\u65f6\u4f1a\u79fb\u52a8(\u5f00\u8f9f\u540e\u53c8\u88ab\u56de\u6536)50GB\u5185\u5b58\u3002<\/span><\/code><\/pre>\n<\/div>\n
    \u8fd9\u4e2a\u95ee\u9898\u786e\u5b9e\u771f\u5b9e\u51fa\u73b0\u8fc7\uff0c\u6211\u6709\u4e00\u6b21\u53d1\u73b0\u7684\u4e00\u4e2a\u6027\u80fd\u95ee\u9898\u5c31\u662f\u56e0\u4e3a\u5199\u804a\u5929\u754c\u9762\u7684\u540c\u5b66\uff0c\u6bcf\u6b21\u90fd\u4f1a\u7528\u65e7\u7684\u804a\u5929\u5b57\u7b26\u4e32\uff0c\u62fc\u63a5\u4e0a\u65b0\u589e\u7684\u804a\u5929\u5b57\u7b26\u4e32\u5f97\u5230\u4e00\u4e32\u65b0\u7684\u804a\u5929\u5b57\u7b26\u4e32\u3002\u4ee5\u81f4\u4e8e\u5f53\u804a\u5929\u4fe1\u606f\u8fc7\u731b\u7684\u65f6\u5019\uff0c\u53ea\u8981\u51e0\u5206\u949f\u5185\u5b58\u5c31\u4f1a\u7206\u70b8\u3002\u4f46\u662f\u8fd9\u4e2a\u95ee\u9898\u5bf9\u5185\u5b58\u7684\u5f71\u54cd\u66f4\u5927\uff0c\u76f8\u6bd4\u8f83\u524d\u9762\u4e24\u70b9\uff0c\u8fd9\u4e2a\u95ee\u9898\u5bf9CPU\u8017\u65f6\u7684\u5f71\u54cd\u6bd4\u8f83\u5c0f\u3002<\/p>\n
    4. \u4f18\u5316\u914d\u7f6e\u8868<\/h2>\n
    –\u5982\u679cpolyline\u5185\u6709\u4e00\u767e\u4e07\u4e2a\u70b9\uff0c\u5219\u4e0b\u9762\u7684\u8868\u7ed3\u6784\u4f1a\u5360\u752895kb\u5185\u5b58<\/p>\n
    \n
     polyline<\/span> =<\/span> {<\/span>\r\n       {<\/span>x<\/span> =<\/span> 1<\/span>,<\/span> y<\/span> =<\/span> 2<\/span>},<\/span>\r\n       {<\/span>x<\/span> =<\/span> 3<\/span>,<\/span> y<\/span> =<\/span> 4<\/span>},<\/span>\r\n       {<\/span>x<\/span> =<\/span> 5<\/span>,<\/span> y<\/span> =<\/span> 6<\/span>},<\/span>\r\n        ...<\/span>\r\n   }<\/span>\r\n\r\n--\u8fd9\u6837\u4f18\u5316\u53ef\u4ee5\u51cf\u5c11\u523065kb<\/span>\r\n--\u53ea\u662f\u6211\u4eec\u4e0d\u5f97\u4e0d\u4f7f\u7528polyline[1][1]\u6765\u4ee3\u66ff\u6bd4\u8f83\u76f4\u89c2\u7684polyline[1].x\u4e86\u3002<\/span>\r\n   polyline<\/span> =<\/span> {<\/span>\r\n       {<\/span>1<\/span>,<\/span> 2<\/span>},<\/span>\r\n       {<\/span>3<\/span>,<\/span> 4<\/span>},<\/span>\r\n       {<\/span>5<\/span>,<\/span> 6<\/span>},<\/span>\r\n        ...<\/span>\r\n   }<\/span>\r\n\r\n--\u8fd9\u6837\u4f18\u5316\u6700\u7ec8\u53ef\u4ee5\u51cf\u5c11\u523024kb<\/span>\r\n--\u6211\u4eec\u5fc5\u987b\u4f7f\u7528polyline.x[2]\u6765\u4ee3\u66ffpolyline[2].x<\/span>\r\n   polyline<\/span> =<\/span> {<\/span>\r\n       x<\/span> =<\/span> {<\/span>1<\/span>,<\/span> 3<\/span>,<\/span> 5<\/span> ...<\/span> },<\/span>\r\n       y<\/span> =<\/span> {<\/span>2<\/span>,<\/span> 4<\/span>,<\/span> 6<\/span> ...<\/span> }<\/span>\r\n   }<\/span><\/code><\/pre>\n<\/div>\n
    \u5bf9\u4e8e\u6211\u4eecRO\u6765\u8bf4\uff0ctable\u914d\u7f6e\u8868\u5c31\u5360\u4e86\u51e0\u5341MB\u7684\u5185\u5b58\uff0c\u6bcf\u4e00\u70b9\u5c0f\u7684\u4f18\u5316\u90fd\u80fd\u8282\u7701\u5f88\u591a\u5185\u5b58\u7a7a\u95f4\u3002\u901a\u8fc7\u5e73\u65f6\u5b9a\u4e49\u914d\u7f6e\u8868\u7684\u8c28\u614e\u5c0f\u5fc3\uff0c\u518d\u914d\u5408\u4e4b\u524dUWA\u7684\u8fd9\u7bc7\u6587\u7ae0Lua\u914d\u7f6e\u8868\u5b58\u50a8\u4f18\u5316\u65b9\u6848\uff0c\u80fd\u7ed9\u9879\u76ee\u5e26\u6765\u975e\u5e38\u53ef\u89c2\u7684\u4f18\u5316\u7a7a\u95f4\u3002<\/p>\n
    \u7ec6\u679d\u672b\u8282<\/h2>\n
    \u4ee5\u4e0b\u662f\u4e00\u4e9b\u6bd4\u8f83\u5c0f\u7684\u4f18\u5316\uff0c\u4f46\u786e\u5b9e\u51fa\u73b0\u8fc7\u3002\u6240\u4ee5\u5217\u4e3e\u51fa\u6765\u4f9b\u5927\u5bb6\u53c2\u8003\uff0c\u53e6\u5916\u5982\u679c\u60f3\u5199\u51fa\u5b8c\u7f8e\u7684Lua\u4ee3\u7801\u7684\u8bdd\u5f3a\u70c8\u5efa\u8bae\u8bfb\u4ee5\u4e0bRoberto\u7684\u539f\u6587\u3002<\/p>\n
    5. \u4f7f\u7528\u95ed\u5305\u4ee3\u66ffloadstring()<\/h2>\n
    \n
    loadstring<\/span>(<\/span>string.format<\/span>(<\/span>\"return %d\"<\/span>,<\/span> i<\/span>))<\/span>\r\n\r\nfunction<\/span> oploadstring<\/span> (<\/span>k<\/span>)<\/span>\r\n    return<\/span> function<\/span> ()<\/span> return<\/span> k<\/span> end<\/span>\r\nend<\/span><\/code><\/pre>\n<\/div>\n
    loadstring\u603b\u662f\u4f1a\u52a8\u6001\u5730\u7f16\u8bd1\u4f20\u5165\u7684\u5b57\u7b26\u4e32\uff0c\u800c\u8fd9\u4e2a\u64cd\u4f5c\u662f\u975e\u5e38\u8017\u65f6\u7684\u3002\u6709\u65f6\u5019\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u95ed\u5305\u7684\u5f62\u5f0f\u6765\u8fbe\u5230\u4e00\u6837\u7684\u6548\u679c\uff0c\u800c\u4e14\u5f00\u9500\u66f4\u5c0f\u3002<\/p>\n
    6. \u4f7f\u7528pairs\u4ee3\u66ffnext<\/h2>\n
    next\u603b\u662f\u4ece\u7b2c\u4e00\u4e2a\u975enil\u503c\u5f00\u59cb\u904d\u5386\u76f4\u5230\u627e\u5230\u4e00\u4e2a\u975enil\u503c\uff0c\u5728\u5220\u9664\u4e00\u4e2a\u8868\u6216\u8005\u4e00\u4e2a\u8db3\u591f\u7a7a\u7684\u8868\u65f6\uff0c\u5f88\u6162\u3002\u4f7f\u7528next\u5220\u9664\u4e00\u4e2a10\u4e07\u4e2a\u5143\u7d20\u7684\u8868\u65f6\uff0c\u8017\u65f6\u7ea6\u4e3a20\u79d2\u3002\u800c\u4f7f\u7528pairs\u4ec5\u9700\u89810.04\u79d2\u3002<\/p>\n
    7. \u4e0d\u8981\u5728for\u5faa\u73af\u4e2d\u521b\u5efa\u8868\u548c\u95ed\u5305<\/h2>\n
    8. \u91cd\u7528coroutine<\/h2>\n
    \n
    --lua\u4e2d\u7684coroutine\u672c\u8eab\u662f\u4e0d\u652f\u6301\u91cd\u7528\u673a\u5236\u7684\uff0c\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5c0f\u6280\u5de7\u6765\u5b9e\u73b0\u5b83\u3002 <\/span>\r\nco<\/span> =<\/span> coroutine.create<\/span>(<\/span>function<\/span> (<\/span>f<\/span>)<\/span>\r\n    while<\/span> f<\/span> do<\/span>\r\n        f<\/span> =<\/span> coroutine.yield<\/span>(<\/span>f<\/span>())<\/span>\r\n    end<\/span>\r\nend<\/span>)<\/span><\/code><\/pre>\n<\/div>\n
    9. \u7528C\u5b9e\u73b0\u4e00\u4e9b\u529f\u80fd<\/h2>\n
    \u5982\u679c\u6027\u80fd\u5b9e\u5728\u5403\u7d27\uff0c\u4f46\u662f\u6709\u82e6\u4e8e\u4e0d\u80fd\u4f7f\u7528luajit\uff0c\u53ef\u4ee5\u7528C\u5b9e\u73b0\u4e00\u4e9b\u529f\u80fd\uff0c\u8fd9\u6837\u53ef\u4ee5\u4f7f\u6a21\u5757\u7684\u6027\u80fd\u53ef\u4f18\u5316\u7684\u7a7a\u95f4\u5927\u5927\u589e\u52a0\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f7f\u7528C\u8d8a\u591a\uff0c\u5219luajit\u80fd\u4f18\u5316\u7684\u8d8a\u5c11\uff0c\u8fd9\u4e24\u8005\u662f\u4e0d\u80fd\u53e0\u52a0\u7684\u3002\u76ee\u524d\u6211\u4eec\u9879\u76ee\u4e2d\u5e76\u6ca1\u6709\u4f7f\u7528\u5230C\u6765\u5b9e\u73b0\u4e00\u4e9b\u6a21\u5757\uff0c\u4e00\u6765\u662f\u7eaf\u7528Lua\u6027\u80fd\u5e76\u6ca1\u6709\u90a3\u4e48\u5403\u7d27\uff0c\u4e8c\u6765\u662f\u5982\u679c\u4f7f\u7528C\u6765\u5b9e\u73b0\u4e00\u4e9b\u529f\u80fd\u5c31\u5931\u53bb\u4e86\u4f7f\u7528Lua\u7684\u610f\u4e49\u3002\u53cd\u6b63\u90fd\u4e0d\u80fd\u70ed\u66f4\uff0c\u90a3\u8fd8\u4e0d\u5982\u76f4\u63a5\u7528C#\u5b9e\u73b0\u3002\u53ea\u8981\u5c0f\u5fc3\u4e00\u4e9b\uff0c\u7528Lua\u8fd8\u662f\u7528C\u5199\u4e0d\u4f1a\u662f\u6027\u80fd\u7684\u74f6\u9888\u3002<\/p>\n
    \n
    \u5b9e\u9645\u6848\u4f8b\u5206\u6790<\/h2>\n
    \u5e7f\u5ea6\u641c\u7d22\u7684Lua\u5199\u6cd5\u4f18\u5316<\/h2>\n
    \u901a\u7528\u7684\u4f18\u5316\u7ecf\u9a8c\u76f8\u4fe1\u5927\u5bb6\u90fd\u6709\u6240\u4e86\u89e3\uff0c\u8fd9\u91cc\u518d\u7ed9\u5927\u5bb6\u5206\u4eab\u4e00\u6bb5\u6211\u81ea\u5df1\u5199Lua\u4ee3\u7801\u7684\u4f18\u5316\u8fc7\u7a0b\uff0c\u8fd9\u6bb5\u4ee3\u7801\u662f\u6c42\u89e3\u4e00\u4e2a\u65e0\u5411\u56fe\u4e2d\u7684\u6700\u77ed\u8def\u5f84\u95ee\u9898\u3002\u5728\u4e00\u4e2a773\u4e2a\u9876\u70b9\uff0c812\u6761\u8fb9\u7684\u65e0\u5411\u56fe\u4e2d\uff0c\u6c42\u4efb\u610f\u4e00\u70b9\u5230\u539f\u70b9(\u4e00\u4e2a\u7279\u6b8a\u70b9\uff0c\u5373local origin = 10000)\u7684\u6700\u77ed\u8def\u5f84\u3002\u8fd9\u4e2a\u65e0\u5411\u56fe\u50a8\u5b58\u5728\u4e00\u4e2atable\u4e2d\uff0c\u6bcf\u4e2a\u9876\u70b9\u6709\u4e2a\u5168\u5c40ID\u4f5c\u4e3akey\uff0cchildren\u8bb0\u5f55\u4e86\u8be5\u9876\u70b9\u7684\u90bb\u63a5\u70b9\uff0c\u793a\u610f\u5982\u4e0b\uff1a<\/p>\n
    \n
    graph<\/span> =<\/span> {<\/span>\r\n   [<\/span>ID<\/span>]<\/span>  =<\/span> {<\/span> children<\/span> =<\/span> {<\/span> ID1<\/span>,<\/span> ID2<\/span>,<\/span> ID3<\/span> }<\/span> },<\/span>\r\n   [<\/span>ID1<\/span>]<\/span> =<\/span> {<\/span> ...<\/span> },<\/span>\r\n   [<\/span>ID2<\/span>]<\/span> =<\/span> {<\/span> ...<\/span> },<\/span>\r\n    ...<\/span>\r\n}<\/span><\/code><\/pre>\n<\/div>\n
    \u539f\u59cb\u4ee3\u7801:<\/p>\n
    \n
    local<\/span> origin<\/span> =<\/span> 10000<\/span>\r\nfunction<\/span> Util<\/span>.<\/span>BFS<\/span>(<\/span>fpIdx<\/span>)<\/span>\r\nlocal<\/span> visited<\/span> =<\/span> {}<\/span>\r\nlocal<\/span> Q<\/span> =<\/span> {}<\/span>\r\nlocal<\/span> firstNode<\/span> =<\/span> BFSNode.new<\/span>(<\/span>nil<\/span>,<\/span> fpIdx<\/span>)<\/span>\r\n    Q<\/span>[<\/span>#<\/span>Q<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> firstNode<\/span>\r\n    visited<\/span>[<\/span>fpIdx<\/span>]<\/span> =<\/span> firstNode<\/span>\r\n    while<\/span> #<\/span>Q<\/span> ><\/span> 0<\/span> do<\/span>\r\n        local<\/span> node<\/span> =<\/span> Q<\/span>[<\/span>1<\/span>]<\/span>\r\n        table.remove<\/span>(<\/span>Q<\/span>,<\/span> 1<\/span>)<\/span>\r\n        local<\/span> v<\/span> =<\/span> graph<\/span>[<\/span>node.ID<\/span>]<\/span>\r\n        for<\/span> i<\/span>=<\/span>1<\/span>,<\/span> #<\/span>v.children<\/span> do<\/span>\r\n            local<\/span> id<\/span> =<\/span> v.children<\/span>[<\/span>i<\/span>]<\/span>\r\n            if<\/span> id<\/span> ==<\/span> origin<\/span> then<\/span>\r\n                local<\/span> bfsNode<\/span> =<\/span> BFSNode.new<\/span>(<\/span>node<\/span>,<\/span> id<\/span>)<\/span>\r\n                bfsNode<\/span>:<\/span>Log<\/span>()<\/span>\r\n                return<\/span> bfsNode<\/span>:<\/span>GetPath<\/span>()<\/span>\r\n            end<\/span>\r\n\r\n            if<\/span> not<\/span> visited<\/span>[<\/span>id<\/span>]<\/span> then<\/span>\r\n                local<\/span> bfsNode<\/span> =<\/span> BFSNode.new<\/span>(<\/span>node<\/span>,<\/span> id<\/span>)<\/span>\r\n                visited<\/span>[<\/span>id<\/span>]<\/span> =<\/span> bfsNode<\/span>\r\n                Q<\/span>[<\/span>#<\/span>Q<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> bfsNode<\/span>\r\n            end<\/span>\r\n        end<\/span>\r\n    end<\/span>\r\n    return<\/span> nil<\/span>\r\nend<\/span><\/code><\/pre>\n<\/div>\n
    \u4e00\u3001\u7b2c\u4e00\u6b21\u4f18\u5316<\/h2>\n
    \u7531\u4e8e\u6211\u81ea\u4f5c\u806a\u660e\uff0c\u4e3a\u4e86\u63d0\u4f9bLog\u548cGetPath\u8fd9\u4e9b\u65b9\u6cd5\u3002\u5c06\u8282\u70b9\u5305\u88c5\u6210\u4e86\u4e00\u4e2a\u201cBFSNode\u7c7b\u201d\u7684\u5f62\u5f0f\uff0c\u4e8b\u5b9e\u4e0a\u662f\u5b58\u5728\u4e86\u4e00\u4e2atable\u5185\u3002\u4f46\u662f\u8fd9\u90e8\u5206\u7684\u5185\u5b58\u5f00\u9500\u548cCPU\u8017\u65f6\u90fd\u662f\u975e\u5e38\u5927\u7684\uff0c\u7b2c\u4e00\u6b21\u4f18\u5316\u4e3b\u8981\u5c31\u662f\u5c06\u8fd9\u4e2a\u5730\u65b9\u7b80\u5316\u4e86\u3002\u7b80\u5316\u7684\u4ee3\u7801\u5e94\u8be5\u662f\u5927\u5bb6\u5b9e\u73b0BFS\u7b97\u6cd5\u7684\u5e38\u7528\u7248\u672c\u4e86\uff0cCPU\u8017\u65f6\u548c\u5185\u5b58\u5f00\u9500\u90fd\u6709\u6240\u4e0b\u964d\u4e86\u3002<\/p>\n
    \u4f18\u5316\u540e\u6027\u80fd\u6570\u636e\u5982\u4e0b:<\/p>\n
    <\/figure>\n
    \n
    local<\/span> origin<\/span> =<\/span> 10000<\/span>\r\nlocal<\/span> visited<\/span> =<\/span> {}<\/span>\r\nlocal<\/span> queue<\/span> =<\/span> {}<\/span>\r\nlocal<\/span> remove<\/span> =<\/span> table.removoe<\/span>\r\nlocal<\/span> node<\/span>\r\nlocal<\/span> id<\/span> =<\/span> 0<\/span>\r\nfunction<\/span> Util<\/span>.<\/span>BFS<\/span>(<\/span>fpIdx<\/span>)<\/span>\r\n    visited<\/span> =<\/span> {}<\/span>\r\n    queue<\/span> =<\/span> {}<\/span>\r\n    queue<\/span>[<\/span>#<\/span>queue<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> fpIdx<\/span>\r\n    visited<\/span>[<\/span>fpIdx<\/span>]<\/span> =<\/span> -<\/span>1<\/span>\r\n    while<\/span> #<\/span>queue<\/span> ><\/span> 0<\/span> do<\/span>\r\n        node<\/span> =<\/span> remove<\/span>(<\/span>queue<\/span>,<\/span> 1<\/span>)<\/span>\r\n        local<\/span> v<\/span> =<\/span> graph<\/span>[<\/span>node<\/span>]<\/span>\r\n        for<\/span> i<\/span>=<\/span>1<\/span>,<\/span> #<\/span>v.children<\/span> do<\/span>\r\n            id<\/span> =<\/span> v.children<\/span>[<\/span>i<\/span>]<\/span>\r\n            if<\/span> id<\/span> ==<\/span> origin<\/span> then<\/span>\r\n                return<\/span> Util.GetPath<\/span>(<\/span>visited<\/span>,<\/span> id<\/span>,<\/span> node<\/span>)<\/span>\r\n            end<\/span>\r\n\r\n            if<\/span> not<\/span> visited<\/span>[<\/span>id<\/span>]<\/span> then<\/span>\r\n                visited<\/span>[<\/span>id<\/span>]<\/span> =<\/span> node<\/span>\r\n                Q<\/span>[<\/span>#<\/span>Q<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> id<\/span>\r\n            end<\/span>\r\n        end<\/span>\r\n    end<\/span>\r\n    return<\/span> nil<\/span>\r\nend<\/span>\r\n\r\nfunction<\/span> Util<\/span>.<\/span>GetPath<\/span>(<\/span>visited<\/span>,<\/span> targetIdx<\/span>,<\/span> parentIdx<\/span>)<\/span>\r\n    local<\/span> path<\/span> =<\/span> {<\/span> targetIdx<\/span> }<\/span>\r\n    while<\/span> parentIdx<\/span> ><\/span> 0<\/span> do<\/span>\r\n        path<\/span>[<\/span>#<\/span>path<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> parentIdx<\/span>\r\n        parentIdx<\/span> =<\/span> visited<\/span>[<\/span>parentIdx<\/span>]<\/span>\r\n    end<\/span>\r\n    return<\/span> path<\/span>\r\nend<\/span><\/code><\/pre>\n<\/div>\n
    \u4e8c\u3001\u7b2c\u4e8c\u6b21\u4f18\u5316<\/h2>\n
    \u7b2c\u4e00\u6b21\u4f18\u5316\u540e\uff0cCPU\u5e73\u5747\u8017\u65f61ms\uff0c\u5e73\u5747\u5185\u5b58\u5f00\u95001.4kb\u90fd\u5904\u4e8e\u53ef\u63a5\u53d7\u7684\u8303\u56f4\u4e86\uff0c\u4f46\u662f\u8fd9\u4e2a\u4ee3\u7801\u8fd8\u662f\u6709\u4f18\u5316\u7a7a\u95f4\u7684\u3002\u56e0\u4e3a\u4e0a\u9762\u4ee3\u7801\u4e2dvisited\u6ca1\u6709\u5f97\u5230\u590d\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u6bb5\u7b80\u5355\u7684\u4ee3\u7801\u590d\u7528visited\u3002\u8fd9\u6b21\u4f18\u5316\u505a\u5230\u4e86773\u6b21\u5bfb\u8def\u603b\u5185\u5b58\u5f00\u9500\u5728740kb\uff0cvisited\u548cQ\u7684\u5f00\u9500\u7ea6\u4e3a50kb\uff0c\u5176\u4f59\u7684\u7ea6700kb\u5185\u5b58\u5168\u90e8\u7528\u4e8e\u6784\u9020Path\u6570\u7ec4\uff0c\u6b64\u5916\u6ca1\u6709\u5185\u5b58\u6d6a\u8d39\u4e86\u3002\u5982\u679c\u8fd8\u9700\u8981\u4f18\u5316\u7684\u8bdd\u5c31\u6bd4\u8f83\u96be\u4e86\uff0c\u4e0d\u662f\u4e00\u4e9b\u7b80\u5355\u7684\u4ee3\u7801\u80fd\u5b9e\u73b0\u7684\u3002\u800c\u5bf9\u4e8e\u6211\u4eec\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f18\u5316\u5230\u8fd9\u79cd\u7a0b\u5ea6\u5df2\u7ecf\u5b8c\u5168\u591f\u7528\u4e86\u3002\u4f18\u5316\u540e\u7684\u4ee3\u7801\u548c\u6570\u636e\u5982\u4e0b\uff1a<\/p>\n
    <\/figure>\n
    \n
    local<\/span> noneIdx<\/span> =<\/span> 0<\/span>\r\nlocal<\/span> invaildIdx<\/span> =<\/span> -<\/span>1<\/span>\r\nlocal<\/span> origin<\/span> =<\/span> 10000<\/span>\r\nlocal<\/span> node<\/span>\r\nlocal<\/span> id<\/span> =<\/span> 0<\/span>\r\nlocal<\/span> g<\/span> =<\/span> graph<\/span>\r\nlocal<\/span> GetPath<\/span> =<\/span> Util.GetPath<\/span>\r\nlocal<\/span> ReuseTable<\/span> =<\/span> Util.ReuseTable<\/span>\r\nlocal<\/span> head<\/span> =<\/span> 0<\/span>\r\nlocal<\/span> last<\/span> =<\/span> 1<\/span>\r\n\r\nfunction<\/span> Util<\/span>.<\/span>BFS<\/span>(<\/span>fpIdx<\/span>)<\/span>\r\n    head<\/span> =<\/span> 0<\/span>\r\n    last<\/span> =<\/span> 1<\/span>\r\n    Q<\/span>[<\/span>last<\/span>]<\/span> =<\/span> fpIdx<\/span>\r\n    visited<\/span>[<\/span>fpIdx<\/span>]<\/span> =<\/span> noneIdx<\/span>\r\n    while<\/span> last<\/span> ><\/span> head<\/span> do<\/span>\r\n        head<\/span> =<\/span> head<\/span> +<\/span> 1<\/span>\r\n        node<\/span> =<\/span> Q<\/span>[<\/span>head<\/span>]<\/span>\r\n        local<\/span> v<\/span> =<\/span> g<\/span>[<\/span>node<\/span>]<\/span>\r\n        for<\/span> i<\/span>=<\/span>1<\/span>,<\/span> #<\/span>v.children<\/span> do<\/span>\r\n            id<\/span> =<\/span> v.children<\/span>[<\/span>i<\/span>]<\/span>\r\n            if<\/span> id<\/span> ==<\/span> origin<\/span> then<\/span>\r\n                local<\/span> path<\/span> =<\/span> GetPath<\/span>(<\/span>visited<\/span>,<\/span> id<\/span>,<\/span> node<\/span>)<\/span>\r\n                ReuseTable<\/span>(<\/span>visited<\/span>)<\/span>\r\n                return<\/span> path<\/span>\r\n            end<\/span>\r\n\r\n            if<\/span> not<\/span> visited<\/span>[<\/span>id<\/span>]<\/span> or<\/span> visited<\/span>[<\/span>id<\/span>]<\/span> ==<\/span> invaildIdx<\/span> then<\/span>\r\n                visited<\/span>[<\/span>id<\/span>]<\/span> =<\/span> node<\/span>\r\n                last<\/span> =<\/span> last<\/span> +<\/span> 1<\/span>\r\n                Q<\/span>[<\/span>last<\/span>]<\/span> =<\/span> id<\/span>\r\n            end<\/span>\r\n        end<\/span>\r\n    end<\/span>\r\n    ReuseTable<\/span>(<\/span>visited<\/span>)<\/span>\r\n    return<\/span> nil<\/span>\r\nend<\/span>\r\n\r\nfunction<\/span> Util<\/span>.<\/span>GetPath<\/span>(<\/span>visited<\/span>,<\/span> targetIdx<\/span>,<\/span> parentIdx<\/span>)<\/span>\r\n    local<\/span> path<\/span> =<\/span> {<\/span> targetIdx<\/span> }<\/span>\r\n    while<\/span> parentIdx<\/span> ><\/span> 0<\/span> do<\/span>\r\n        path<\/span>[<\/span>#<\/span>path<\/span> +<\/span> 1<\/span>]<\/span> =<\/span> parentIdx<\/span>\r\n        parentIdx<\/span> =<\/span> visited<\/span>[<\/span>parentIdx<\/span>]<\/span>\r\n    end<\/span>\r\n    return<\/span> path<\/span>\r\nend<\/span>\r\n\r\nfunction<\/span> Util<\/span>.<\/span>ReuseTable<\/span>(<\/span>t<\/span>)<\/span>\r\n    for<\/span> k<\/span>,<\/span>_<\/span> in<\/span> pairs<\/span>(<\/span>t<\/span>)<\/span> do<\/span>\r\n        t<\/span>[<\/span>k<\/span>]<\/span> =<\/span> invaildIdx<\/span>\r\n    end<\/span>\r\nend<\/span><\/code><\/pre>\n<\/div>\n
    \u4e86\u89e3Slua\u548cC#\u4ea4\u4e92<\/h2>\n
    \u4e0a\u9762\u7684\u4f18\u5316\u793a\u4f8b\u5c40\u9650\u4e8eLua\u7684\u5199\u6cd5\u548c\u7528\u6cd5\u5c42\u9762\uff0c\u867d\u7136\u8fd9\u662f\u9879\u76ee\u4e2d\u5e38\u89c1\u7684\u4e00\u7c7b\u4f18\u5316\u70b9\uff0c\u4f46\u662f\u6211\u4eec\u7684Unity\u9879\u76ee\u4e2d\uff0cLua\u4f18\u5316\u8fd8\u6709\u53e6\u4e00\u4e2a\u5927\u5934\u2014\u2014Lua\u548cC#\u4ea4\u4e92\u3002\u800c\u8981\u4f18\u5316\u8fd9\u90e8\u5206\uff0c\u5c31\u5148\u8981\u660e\u767dLua\u548cC#\u4ea4\u4e92\u65f6\u53d1\u751f\u4e86\u4ec0\u4e48\u3002\u5927\u5bb6\u53ef\u4ee5\u53c2\u8003UWA\u4e4b\u524d\u63a8\u9001\u7684\u8fd9\u7bc7\u6587\u7ae0\u300a\u7528\u597dLua+Unity\uff0c\u8ba9\u6027\u80fd\u98de\u8d77\u6765\u2014\u2014Lua\u4e0eC#\u4ea4\u4e92\u7bc7\u300b<\/a>\uff0c\u91cc\u9762\u8be6\u7ec6\u5206\u6790\u4e86ULua\u8c03\u7528\u6d41\u7a0b\u56e0\u4e3a\u7b14\u8005\u7528\u7684\u662fSlua\uff0c\u6240\u4ee5\u8fd9\u91cc\u5206\u6790Lua\u548cC#\u4ea4\u4e92\u5c31\u4ee5Slua\u4e3a\u4f8b\u4e86\u3002\u5176\u4e2d`obj`\u4e3aLua\u6301\u6709\u7684\u4e00\u4e2aC#\u7684GameObject\u5bf9\u8c61\uff0c\u5f53\u6211\u4eec\u6267\u884c\u4ee5\u4e0b\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u5c31\u4ea7\u751f\u4e86\u4e24\u6b21Lua\u548cC#\u4ea4\u4e92\u3002<\/p>\n
    \n
    local<\/span> pos<\/span> =<\/span> obj.transform<\/span>.<\/span>position<\/span><\/code><\/pre>\n<\/div>\n
    <\/figure>\n
    \u8fd9\u6b21Lua\u548cC#\u4ea4\u4e92\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5168\u90e8\u7684\u6d41\u7a0b\u5982\u4e0a\u8868\u3002\u7b80\u8ff0\u4e00\u4e0b\u6d41\u7a0b\u5c31\u662f:<\/p>\n
      \n
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