bigguy Useful UTIL functions

Useful UTIL functions for casting CBasePlayer pointers
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Add these declarations to util.h:

// bigguy
 extern CBasePlayer* UTIL_CastPlayer ( CBaseEntity *pEnt );
extern CBasePlayer* UTIL_CastPlayer ( entvars_t *pev );
extern CBasePlayer* UTIL_CastPlayer ( edict_t *pEdict );
extern CBasePlayer* UTIL_CastPlayer ( int index );

Add this to util.cpp:

// bigguy

CBasePlayer* UTIL_CastPlayer ( CBaseEntity *pEnt )
{
	if (pEnt) // check validity
	{
		if (pEnt->IsPlayer()) // is it even a player?
		{
			CBasePlayer *plr = GetClassPtr((CBasePlayer *)pEnt); // cast player
			if (plr) // check validity
				return plr; // return pointer
		}
	}

	return NULL; // otherwise, its not a player
}

CBasePlayer* UTIL_CastPlayer ( entvars_t *pev )
{
	if (pev) // check validity
	{
		if (FClassnameIs(pev, "player")) // is it even a player?
		{
			CBasePlayer *plr = GetClassPtr((CBasePlayer *)pev); // cast player
			if (plr) // check validity
				return plr; // return pointer
		}
	}
	return NULL; // otherwise, its not a player
}
CBasePlayer* UTIL_CastPlayer ( edict_t *pEdict )
{
	if (pEdict) // check validity
	{
		if (FClassnameIs(pEdict, "player")) // is it even a player?
		{
			entvars_t *pev = &pEdict->v;
			CBasePlayer *plr = GetClassPtr((CBasePlayer *)pev); // cast player
			if (plr) // check validity
				return plr; // return pointer
		}
	}
	return NULL; // otherwise, its not a player
}
CBasePlayer* UTIL_CastPlayer ( int index )
{
	if (index > 0 && index <= gpGlobals->maxClients) // check validity
	{
		edict_t *pEdict = INDEXENT(index); // cast pEdict
		CBasePlayer *plr = UTIL_CastPlayer(pEdict); // cast player
		if (plr) // check validity
			return plr; // return pointer
	}
	return NULL; // otherwise, its not a player
}

Usage:

If you have a pointer to a CBaseEntity, entvars_t, edict_t or just the index of an entity, you can cast that into a CBasePlayer with these functions. The functions themselves, should handle any NULL pointers you pass into it, and will only return NULL if it cannot cast the pointer/index into a CBasePlayer. You should use the functions like this: 

CBasePlayer*pPlayer = UTIL_CastPlayer ( [pointer/index] );
if (pPlayer)
	...