Compiling NPC.cpp warning! <<<<<<<<<>>>>>>>>>>

[Lording]

NPC.cpp warning! &amp;lt;&amp;lt;&amp;lt;&amp;lt;&amp;lt;&amp;lt;&a mp;lt;&amp;lt;&amp;lt;&amp;gt;&amp;gt;&amp;gt;&amp ;g t;&amp;gt;&amp;gt;&amp;gt;&amp;gt;&amp;gt;&amp;gt ;

These are my warning in vs c++

npc.cpp
npc.cpp(1395): warning C4018: '>=' : signed/unsigned mismatch
npc.cpp(1454): warning C4018: '>=' : signed/unsigned mismatch
npc.cpp(1574): warning C4800: 'Npc *const ' : forcing value to bool 'true' or 'false' (performance warning)
npc.cpp(1907): warning C4018: '>' : signed/unsigned mismatch
npc.cpp(1915): warning C4018: '>=' : signed/unsigned mismatch
npc.cpp(1924): warning C4018: '>=' : signed/unsigned mismatch
npc.cpp(2717): warning C4800: 'Npc *' : forcing value to bool 'true' or 'false' (performance warning)

This is my npc.cpp

Do you know how can I fix that?

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bump

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anyone please?:/