vcmi/AI/Nullkiller/HeroManager.h

/*
* HeroManager.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/

#pragma once

#include "AIUtility.h"

#include "../../lib/GameConstants.h"
#include "../../lib/VCMI_Lib.h"
#include "../../lib/CTownHandler.h"
#include "../../lib/CBuildingHandler.h"
#include "VCAI.h"

enum HeroRole
{
	MAIN,

	SCOUT
};

class DLL_EXPORT IHeroManager //: public: IAbstractManager
{
public:
	virtual void init(CPlayerSpecificInfoCallback * CB) = 0;
	virtual void setAI(VCAI * AI) = 0;
	virtual std::map<HeroPtr, HeroRole> getHeroRoles() const = 0;
	virtual int selectBestSkill(const HeroPtr & hero, const std::vector<SecondarySkill> & skills) const = 0;
};

class DLL_EXPORT ISecondarySkillRule
{
public:
	virtual void evaluateScore(const CGHeroInstance * hero, SecondarySkill skill, float & score) const = 0;
};

class DLL_EXPORT SecondarySkillEvaluator
{
private:
	std::vector<std::shared_ptr<ISecondarySkillRule>> evaluationRules;

public:
	SecondarySkillEvaluator(std::vector<std::shared_ptr<ISecondarySkillRule>> evaluationRules);
	float evaluateSecSkills(const CGHeroInstance * hero) const;
	float evaluateSecSkill(const CGHeroInstance * hero, SecondarySkill skill) const;
};

class DLL_EXPORT HeroManager : public IHeroManager
{
private:
	static SecondarySkillEvaluator wariorSkillsScores;
	static SecondarySkillEvaluator scountSkillsScores;

	CPlayerSpecificInfoCallback * cb; //this is enough, but we downcast from CCallback
	VCAI * ai;

public:
	void init(CPlayerSpecificInfoCallback * CB) override;
	void setAI(VCAI * AI) override;
	std::map<HeroPtr, HeroRole> getHeroRoles() const override;
	int selectBestSkill(const HeroPtr & hero, const std::vector<SecondarySkill> & skills) const override;

private:
	float evaluateFightingStrength(const CGHeroInstance * hero) const;
	float evaluateSpeciality(const CGHeroInstance * hero) const;
};

// basic skill scores. missing skills will have score of 0
class DLL_EXPORT SecondarySkillScoreMap : public ISecondarySkillRule
{
private:
	std::map<SecondarySkill, float> scoreMap;

public:
	SecondarySkillScoreMap(std::map<SecondarySkill, float> scoreMap);
	void evaluateScore(const CGHeroInstance * hero, SecondarySkill skill, float & score) const override;
};

// Controls when to upgrade existing skills and when get new
class ExistingSkillRule : public ISecondarySkillRule
{
public:
	void evaluateScore(const CGHeroInstance * hero, SecondarySkill skill, float & score) const override;
};

// Allows to get wisdom at 12 lvl
class WisdomRule : public ISecondarySkillRule
{
public:
	void evaluateScore(const CGHeroInstance * hero, SecondarySkill skill, float & score) const override;
};

// Dynamically controls scores for magic skills
class AtLeastOneMagicRule : public ISecondarySkillRule
{
private:
	static std::vector<SecondarySkill> magicSchools;

public:
	void evaluateScore(const CGHeroInstance * hero, SecondarySkill skill, float & score) const override;
};