MathOperationBehaviour.h

#pragma once
// ===========================================================================
// Copyright (c) 2015 Toolchefs Ltd. All rights reserved.
//
// Use of this software is subject to the terms of the Toolchefs license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
 
#include <Atoms/BehaviourTree/Behaviour.h>
#include <Atoms/BehaviourTree/BlackboardValue.h>
 
#include <functional>
 
namespace Atoms
{
    namespace MathOperation {
        struct MathOpValType;
    }
 
    class ATOMS_EXPORT MathOperationBehaviour : public Behaviour
    {
    public:
 
        MathOperationBehaviour();
 
        virtual ~MathOperationBehaviour();
 
        virtual const char* typeName() const override;
 
        static const char* staticTypeName();
 
        virtual void update(BehaviourTreeContext* context, State* data) override;
 
        virtual void setAttributes(const AtomsCore::MapMetadata* attributes, Blackboard* blackboard) override;
 
        virtual void getAttributes(AtomsCore::MapMetadata* attributes, Blackboard* blackboard) override;
 
        virtual void getAttributeProperties(AtomsCore::MapMetadata* attributes) override;
 
        static Behaviour* creator();
 
        class ExpressionEvaluator
        {
        public:
 
            ExpressionEvaluator();
            ~ExpressionEvaluator();
 
            void init(MathOperationBehaviour* node, const std::string& expression);
 
            std::function<void(MathOperation::MathOpValType& result, const MathOperation::MathOpValType& in0, const MathOperation::MathOpValType& in1)> operatorFn;
 
            BlackboardMetadataValue* firstOperand;
            BlackboardMetadataValue* secondOperand;
        };
 
    public:
 
        std::string expression;
 
        ExpressionEvaluator evaluator;
 
        BlackboardMetadataValue value0;
 
        BlackboardMetadataValue value1;
 
        BlackboardStringValue entryName;
    };
}