GOAP Action Base Class

#pragma once
#include <vector>

class Agent;
class Property;
class WorldState;

enum ConditionType
{
    eENEMY_DEAD,
    eWEAPON_DRAWN,
    eWEAPON_LOADED,
    eHAS_TARGET
};

struct WorldProperty
{
    union Value
    {
        bool    bValue;
        float   fValue;
        int nValue;
    };

    unsigned int    subjectID;
    ConditionType   type;
    Value       value;
};

class Action
{
public:
    Action(void);
    ~Action(void);

    virtual void Execute(Agent* a_agent, WorldState* a_currentState) = 0;

protected:
    std::vector<WorldProperty*> m_preConditions;
    // need effects here
};