States

#ifndef ENEMYSTATES_H
#define ENEMYSTATES_H

#include "IEnemyState.h"
#include "IdleState.h"

class EnemyStates {
    public:
        static IdleState Idle;

};


#endif // ENEMYSTATES_H

---------------------------

#ifndef IDLESTATE_H
#define IDLESTATE_H

#include "IEnemyState.h"

class IdleState : public IEnemyState {
    public:
        virtual void apply() {
            printf("idle state. !!!!!!!!!!!!!!\n");
        }
};

#endif //IDLESTATE_H


------------------------

#include "Enemy.h"
#include "StarSystem.h"
#include "Starship.h"


#include "EnemyStates.h"
#include "IdleState.h"

Enemy::Enemy(StarSystem* starSystem)
    : Boid(starSystem),

    // Some default weights. Eventually we should create a nice factory for this.
    _seperationBehaviour(10), _cohesionBehaviour(15), _alignmentBehaviour(20) {

    // Gives an error:
    EnemyStates::Idle.apply();

    // [more code here.]
}// [more code here.]