#pragma once
#include "IHandleEntity.hpp"
#define NUM_ENT_ENTRY_BITS (11 + 2)
#define NUM_ENT_ENTRIES (1 << NUM_ENT_ENTRY_BITS)
#define INVALID_EHANDLE_INDEX 0xFFFFFFFF
#define NUM_SERIAL_NUM_BITS 16 // (32 - NUM_ENT_ENTRY_BITS)
#define NUM_SERIAL_NUM_SHIFT_BITS (32 - NUM_SERIAL_NUM_BITS)
#define ENT_ENTRY_MASK (( 1 << NUM_SERIAL_NUM_BITS) - 1)
class IHandleEntity;
class CBaseHandle { //-V690
public:
CBaseHandle();
CBaseHandle(const CBaseHandle &other);
CBaseHandle(unsigned long value);
CBaseHandle(int iEntry, int iSerialNumber);
void Init(int iEntry, int iSerialNumber);
void Term();
// Even if this returns true, Get() still can return return a non-null value.
// This just tells if the handle has been initted with any values.
bool IsValid() const;
int GetEntryIndex() const;
int GetSerialNumber() const;
int ToInt() const;
unsigned long ToLong() const;
bool operator !=(const CBaseHandle &other) const;
bool operator ==(const CBaseHandle &other) const;
bool operator ==(const IHandleEntity* e) const;
bool operator !=(const IHandleEntity* e) const;
bool operator <(const CBaseHandle &other) const;
bool operator <(const IHandleEntity* e) const;
// Assign a value to the handle.
const CBaseHandle& operator=(const IHandleEntity* pEntity);
const CBaseHandle& Set(const IHandleEntity* pEntity);
// Use this to dereference the handle.
// Note: this is implemented in game code (ehandle.h)
IHandleEntity* Get() const;
protected:
// The low NUM_SERIAL_BITS hold the index. If this value is less than MAX_EDICTS, then the entity is networkable.
// The high NUM_SERIAL_NUM_BITS bits are the serial number.
unsigned long m_Index;
};
inline CBaseHandle::CBaseHandle() {
m_Index = INVALID_EHANDLE_INDEX;
}
inline CBaseHandle::CBaseHandle(const CBaseHandle &other) {
m_Index = other.m_Index;
}
inline CBaseHandle::CBaseHandle(unsigned long value) {
m_Index = value;
}
inline CBaseHandle::CBaseHandle(int iEntry, int iSerialNumber) {
Init(iEntry, iSerialNumber);
}
inline void CBaseHandle::Init(int iEntry, int iSerialNumber) {
m_Index = iEntry | (iSerialNumber << NUM_ENT_ENTRY_BITS);
}
inline void CBaseHandle::Term() {
m_Index = INVALID_EHANDLE_INDEX;
}
inline bool CBaseHandle::IsValid() const {
return m_Index != INVALID_EHANDLE_INDEX;
}
inline int CBaseHandle::GetEntryIndex() const {
return m_Index & ENT_ENTRY_MASK;
}
inline int CBaseHandle::GetSerialNumber() const {
return m_Index >> NUM_ENT_ENTRY_BITS;
}
inline int CBaseHandle::ToInt() const {
return (int)m_Index;
}
inline unsigned long CBaseHandle::ToLong() const {
return (unsigned long)m_Index;
}
inline bool CBaseHandle::operator !=(const CBaseHandle &other) const {
return m_Index != other.m_Index;
}
inline bool CBaseHandle::operator ==(const CBaseHandle &other) const {
return m_Index == other.m_Index;
}
inline bool CBaseHandle::operator ==(const IHandleEntity* e) const {
return Get() == e;
}
inline bool CBaseHandle::operator !=(const IHandleEntity* e) const {
return Get() != e;
}
inline bool CBaseHandle::operator <(const CBaseHandle &other) const {
return m_Index < other.m_Index;
}
inline bool CBaseHandle::operator <(const IHandleEntity* pEntity) const {
unsigned long otherIndex = (pEntity) ? pEntity->GetRefEHandle().m_Index : INVALID_EHANDLE_INDEX;
return m_Index < otherIndex;
}
inline const CBaseHandle& CBaseHandle::operator=(const IHandleEntity* pEntity) {
return Set(pEntity);
}
inline const CBaseHandle& CBaseHandle::Set(const IHandleEntity* pEntity) {
if (pEntity) {
*this = pEntity->GetRefEHandle();
}
else {
m_Index = INVALID_EHANDLE_INDEX;
}
return *this;
}