How to understand this codes?

[zq7695zq]

i'm fixing this packet "SPAWN_MONSTER_CONTROL" by idb
but when i saw this

i can't understand how it work
there is the idb link :

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and this function is "MobStat:ecodeTemporary"
somebody can help me?
sorry for my bad english.

 

[Eric]

the dword is a constant specifying the bits of the mobstat. the function is basically checking if the mobstat is within the flag, and if it is, it encodes it. as for determining which mobstat is which, reference a PDB and figure them out from there.

 

[zq7695zq]

the dword is a constant specifying the bits of the mobstat. the function is basically checking if the mobstat is within the flag, and if it is, it encodes it. as for determining which mobstat is which, reference a PDB and figure them out from there.

i know that，but the dwords have the same value，i dont understand this function how to check if the mobstat is within the flag(i have saw this function in cms v135 ) that is why it confuses me
think you for you answer!

 

[Yuuroido]

i know that，but the dwords have the same value，i dont understand this function how to check if the mobstat is within the flag(i have saw this function in cms v135 ) that is why it confuses me
think you for you answer!

xref (Press 'X' on dword_XXXXXX) and you will find the 'initializer' function for the flag.
http://forum.ragezone.com/f566/packet-structure-ida-1083766-post8523885/#post8523885
http://forum.ragezone.com/f566/packet-structure-ida-1083766-post8524128/#post8524128