mirror of
https://github.com/mod-playerbots/mod-playerbots
synced 2025-11-29 15:58:20 +08:00
45 lines
1010 B
C++
45 lines
1010 B
C++
/*
|
|
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version.
|
|
*/
|
|
|
|
#ifndef _PLAYERBOT_LAZYCALCULATEDVALUE_H
|
|
#define _PLAYERBOT_LAZYCALCULATEDVALUE_H
|
|
|
|
template <class TValue, class TOwner>
|
|
class LazyCalculatedValue
|
|
{
|
|
public:
|
|
typedef TValue (TOwner::*Calculator)();
|
|
|
|
public:
|
|
LazyCalculatedValue(TOwner* owner, Calculator calculator) : calculator(calculator), owner(owner)
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
public:
|
|
TValue GetValue()
|
|
{
|
|
if (!calculated)
|
|
{
|
|
value = (owner->*calculator)();
|
|
calculated = true;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
void Reset()
|
|
{
|
|
calculated = false;
|
|
}
|
|
|
|
protected:
|
|
Calculator calculator;
|
|
TOwner* owner;
|
|
bool calculated;
|
|
TValue value;
|
|
};
|
|
|
|
#endif
|