invadersGrid.h

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#ifndef GUARD_INVADERSGRID_H
#define GUARD_INVADERSGRID_H
 
#include<vector>
 
using namespace std;
 
enum class InvaderType {
    TYPEA,
    TYPEB,
    TYPEC,
    NONE,
};
 
class InvadersColumn : public vector<InvaderType>{
public:
    bool hasNoValid() const;
    
    unsigned getOutterInvader() const;
    
    unsigned randomValidInv() const;
};
 
 
class InvadersGrid : public vector<InvadersColumn>{
public:
 
    unsigned validColsNumber() const;
 
    unsigned randomValidCol() const;
};
 
#endif