Parallel.h

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#pragma once

#include "tree/Selector.h"
#include "AI.h"

namespace ai {

class Parallel: public Selector {
public:
    SELECTOR_CLASS(Parallel)

    void getRunningChildren(const AIPtr& entity, std::vector<bool>& active) const override {
        for (TreeNodes::const_iterator i = _children.begin(); i != _children.end(); ++i) {
            active.push_back((*i)->getLastStatus(entity) != RUNNING);
        }
    }
    TreeNodeStatus execute(const AIPtr& entity, int64_t deltaMillis) override {
        if (Selector::execute(entity, deltaMillis) == CANNOTEXECUTE) {
            return CANNOTEXECUTE;
        }

        bool totalStatus = false;
        for (const TreeNodePtr& child : _children) {
            const bool isActive = child->execute(entity, deltaMillis) == RUNNING;
            if (!isActive) {
                child->resetState(entity);
            }
            totalStatus |= isActive;
        }

        if (!totalStatus) {
            resetState(entity);
        }
        return state(entity, totalStatus ? RUNNING : FINISHED);
    }
};

}