BattleSystem.h

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#pragma once
#include "common/Export.h"
 
 
#include "common/Result.h"
 
#include <string>
#include <vector>
 
namespace eve::rpg {
 
class RPGActor;
 
struct SkillDamageSpec {
    std::string damageType = "hp";
    std::string formula;
    std::string element;
    double critChance = 0.0;  
    int hitChance = 100;      
};
 
struct DamageResult {
    double amount = 0.0;
    bool crit = false;
    bool hit = true;
    double elementRate = 1.0;
};
 
class EVENGINE_API_PLATFORM BattleSystem {
public:
    [[nodiscard]] static eve::Result<void> registerSkillDamageChecked(const std::string &skillId,
                                                                      const SkillDamageSpec &spec);
    static void registerSkillDamage(const std::string &skillId, const SkillDamageSpec &spec);
    static const SkillDamageSpec *findSkillDamage(const std::string &skillId);
    static void clearSkillDamage();
 
    static double evaluateFormula(const std::string &formula, RPGActor *attacker, RPGActor *target);
 
    [[nodiscard]] static eve::Result<double> evaluateFormulaChecked(const std::string &formula,
                                                                     RPGActor *attacker, RPGActor *target);
 
    static DamageResult resolveHit(RPGActor *attacker, RPGActor *target,
                                   const SkillDamageSpec &spec, unsigned seed);
};
 
}  // namespace eve::rpg