71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
#include <algorithm>
|
|
#include <cassert>
|
|
#include <functional>
|
|
#include <iostream>
|
|
#include <memory>
|
|
#include <set>
|
|
#include <variant>
|
|
#include <vector>
|
|
|
|
class Ammunition {
|
|
public:
|
|
Ammunition(size_t amount)
|
|
: _amount(amount) {}
|
|
virtual ~Ammunition() = default;
|
|
|
|
size_t amount() const { return _amount; }
|
|
|
|
private:
|
|
size_t _amount = 0;
|
|
};
|
|
|
|
class RoundShot final : public Ammunition {
|
|
public:
|
|
using Ammunition::Ammunition;
|
|
};
|
|
|
|
class ChainShot final : public Ammunition {
|
|
public:
|
|
using Ammunition::Ammunition;
|
|
};
|
|
|
|
class GrapeShot final : public Ammunition {
|
|
public:
|
|
using Ammunition::Ammunition;
|
|
};
|
|
|
|
class DamageVisitor {
|
|
public:
|
|
void operator()(const RoundShot& shot) const {
|
|
std::cout << "Round shot make 20 damages\n";
|
|
}
|
|
void operator()(const ChainShot& shot) const {
|
|
std::cout << "Chain shot make 30 damages\n";
|
|
}
|
|
void operator()(const GrapeShot& shot) const {
|
|
std::cout << "Grape shot make 40 damages\n";
|
|
}
|
|
};
|
|
|
|
class SoundVisitor {
|
|
public:
|
|
void operator()(const RoundShot& shot) const {
|
|
std::cout << "Fiuuuuuuuu Bam!\n";
|
|
}
|
|
void operator()(const ChainShot& shot) const {
|
|
std::cout << "Fiuuuuuuuuuuu Bam bam!\n";
|
|
}
|
|
void operator()(const GrapeShot& shot) const {
|
|
std::cout << "Fiuuuuuuuuuuu Bam bam bam bam bam!\n";
|
|
}
|
|
};
|
|
|
|
int main() {
|
|
using Shot = std::variant<RoundShot, ChainShot, GrapeShot>;
|
|
|
|
Shot shot = GrapeShot(100);
|
|
SoundVisitor soundVisitor;
|
|
DamageVisitor damageVisitor;
|
|
std::visit(damageVisitor, shot);
|
|
std::visit(soundVisitor, shot);
|
|
}
|