39 lines
No EOL
1.1 KiB
C++
39 lines
No EOL
1.1 KiB
C++
#include <istream>
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#include <memory>
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enum GameResult { Win, Tie, Loss };
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class Hand {
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public:
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// Converts a user-inputted character to the correct instance of Hand.
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static std::unique_ptr<Hand> fromChar(char);
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// Randomly returns one of the variants of Hand.
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static std::unique_ptr<Hand> generateRandom();
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// Returns the lowercase name of this type of hand, for example "rock" or
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// "scissors".
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virtual std::string getHandName() const = 0;
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// Returns if this instance of Hand wins against another instance. The
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// returned value is from the perspective of this instance of hand. For
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// example, if GameResult::Win is returned, the instance of Hand wins
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// against the passed argument Hand.
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virtual GameResult compareAgainst(const Hand&) = 0;
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};
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class Rock : public Hand {
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public:
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std::string getHandName() const override;
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GameResult compareAgainst(const Hand&) override;
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};
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class Paper : public Hand {
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public:
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std::string getHandName() const override;
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GameResult compareAgainst(const Hand&) override;
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};
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class Scissors : public Hand {
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public:
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std::string getHandName() const override;
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GameResult compareAgainst(const Hand&) override;
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}; |