47 lines
2.0 KiB
Markdown
47 lines
2.0 KiB
Markdown
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##[Cn]
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在Monster Hunter Frontier （任意版本） 中，浏览角色信息，有一个ID，形如"W6BX11"，这种六位数。
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通过查看服务端代码和截取包，发现服务器仅发送了uint32的数据库的CharacterID，并没有发送"W6BX11"这种字符串。
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这完全是客户端逻辑，为了不显示真实ID，做了一个换算。
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我搞清楚了其换算机制，机制如下：
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1. MHF客户端是基于0~Z的36进制，但是把‘0’、‘I’、‘O’、‘S’ 这四个字符扔了，变成32进制。
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2. 从0到32的数值，对应的表示符号是“123456789ABCDEFGHJKLMNPQRTUVWXYZ”
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3. 按照如上对应表，把uint32的CharacterID进行转换之后。
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4. 将结果倒序,(并不是HEX的高位在前，是直接整个字符串倒序）
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5. 然后不足6位填充“1”，因为“1”就是0
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相反的行为，换算回去
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已用于皓月云MHF-FW5在线网页游戏实况的需要内存采集的一部分功能。
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##[En]
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In Monster Hunter Frontier (any version), when browsing character information, there is an ID in the form of "W6BX11", a six-digit number.
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By checking the server code and intercepting the package, it was found that the server only sent the CharacterID of the uint32 database, and did not send the string "W6BX11".
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This is completely client logic. In order not to display the real ID, a conversion was made.
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I figured out its conversion mechanism, which is as follows:
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1. The MHF client is based on 36-decimal system 0~Z, but the four characters '0', 'I', 'O', and 'S' are thrown away and converted to 32-decimal system.
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2. The corresponding symbols for the values from 0 to 32 are "123456789ABCDEFGHJKLMNPQRTUVWXYZ"
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3. According to the corresponding table above, convert the CharacterID of uint32.
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4. Reverse the result (not the high bit of HEX first, but the whole string in reverse order)
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5. Then fill "1" if there are less than 6 bits, because "1" is 0
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The opposite behavior, convert back
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It has been used for some functions of axibug.com MHF-FW5 online web game live that require memory acquisition.
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