card_interface.h

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// Based on "Design Patterns: Elements of Reusable Object-Oriented Software"
// book by Erich Gamma, John Vlissides, Ralph Johnson, and Richard Helm 
//
// Created by Bartosz Rachwal. The National Institute of Advanced Industrial Science and Technology, Japan.

#ifndef OPERATIONAL_VISITOR_CARD_INTERFACE_H_
#define OPERATIONAL_VISITOR_CARD_INTERFACE_H_

namespace operational
{
namespace visitor
{
class CardInterface
{
    public:
    virtual ~CardInterface() {}

    virtual double GetSilverPrice() = 0;
    virtual double GetGoldPrice() = 0;
};
}
}

#endif