Action.cpp

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#include "Action.h"
#include "WorldState.h"
 
namespace Divide::goap
{
 
Action::Action()  noexcept
    : cost_( 0 )
{
}
 
Action::Action(const string& name, I32 cost) : Action()
{
    // Because delegating constructors cannot initialize & delegate at the same time...
    name_ = name;
    cost_ = cost;
}
 
bool Action::eligibleFor(const WorldState& ws) const {
    if (!checkImplDependentCondition()) {
        return false;
    }
 
    for (const auto& precond : preconditions_) {
        try {
            if (ws.vars_.at(precond.first) != precond.second) {
                return false;
            }
        }
        catch (const std::out_of_range&) {
            return false;
        }
    }
    return true;
}
 
WorldState Action::actOn(const WorldState& ws) const {
    WorldState tmp(ws);
    for (const auto& effect : effects_) {
        tmp.setVariable(effect.first, effect.second);
    }
    return tmp;
}
 
} //namespace Divide::goap