Invert.h

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#pragma once

#include "tree/TreeNode.h"

namespace ai {

class Invert: public TreeNode {
public:
    NODE_CLASS(Invert)

    TreeNodeStatus execute(const AIPtr& entity, int64_t deltaMillis) override {
        if (_children.size() != 1) {
            ai_assert(false, "Invert must have exactly one child");
        }

        if (TreeNode::execute(entity, deltaMillis) == CANNOTEXECUTE) {
            return CANNOTEXECUTE;
        }

        const TreeNodePtr& treeNode = *_children.begin();
        const TreeNodeStatus status = treeNode->execute(entity, deltaMillis);
        if (status == FINISHED) {
            return state(entity, FAILED);
        } else if (status == FAILED) {
            return state(entity, FINISHED);
        } else if (status == EXCEPTION) {
            return state(entity, EXCEPTION);
        } else if (status == CANNOTEXECUTE) {
            return state(entity, FINISHED);
        }
        return state(entity, RUNNING);
    }
};

}