eq2go/internal/skills/types.go

package skills

import "eq2emu/internal/common"

// SkillBonusValue represents a single skill bonus value
type SkillBonusValue struct {
	SkillID int32   // Skill being modified
	Value   float32 // Bonus value
}

// SkillBonus represents skill bonuses from a spell
type SkillBonus struct {
	SpellID int32                      // Spell providing the bonus
	Skills  map[int32]*SkillBonusValue // Map of skill ID to bonus value
}

// Skill represents a character skill
type Skill struct {
	SkillID     int32              // Unique skill identifier
	CurrentVal  int16              // Current skill value
	PreviousVal int16              // Previous skill value (for deltas)
	MaxVal      int16              // Maximum skill value
	SkillType   int32              // Skill category type
	Display     int8               // Display setting
	ShortName   common.EQ2String16 // Short skill name
	Name        common.EQ2String16 // Full skill name
	Description common.EQ2String16 // Skill description
	SaveNeeded  bool               // Whether skill needs database save
	ActiveSkill bool               // Whether skill is active/usable
}

// NewSkill creates a new skill with default values
func NewSkill() *Skill {
	return &Skill{
		SkillID:     0,
		CurrentVal:  0,
		PreviousVal: 0,
		MaxVal:      0,
		SkillType:   0,
		Display:     0,
		SaveNeeded:  false,
		ActiveSkill: true,
	}
}

// NewSkillFromSkill creates a copy of an existing skill
func NewSkillFromSkill(skill *Skill) *Skill {
	if skill == nil {
		return NewSkill()
	}

	return &Skill{
		SkillID:     skill.SkillID,
		CurrentVal:  skill.CurrentVal,
		PreviousVal: skill.CurrentVal, // Copy current as previous
		MaxVal:      skill.MaxVal,
		SkillType:   skill.SkillType,
		Display:     skill.Display,
		ShortName:   skill.ShortName,
		Name:        skill.Name,
		Description: skill.Description,
		SaveNeeded:  false,
		ActiveSkill: true,
	}
}

// CheckDisarmSkill checks disarm skill against a chest
// Returns 1 for success, 0 for fail (no trigger), -1 for fail with trigger
func (s *Skill) CheckDisarmSkill(targetLevel int16, chestDifficulty int8) int {
	if chestDifficulty < 2 {
		return DisarmSuccess // No triggers on easy chests
	}

	if targetLevel < 1 {
		targetLevel = 1
	}

	chestDiffResult := int32(targetLevel) * int32(chestDifficulty)
	baseDifficulty := float32(15.0)
	failThreshold := float32(10.0)

	// Calculate success chance
	chance := (100.0 - baseDifficulty) * (float32(s.CurrentVal) / float32(chestDiffResult))

	if chance > (100.0 - baseDifficulty) {
		chance = 100.0 - baseDifficulty
	}

	// Roll d100
	roll := makeRandomFloat(0, 100)

	if roll <= chance {
		return DisarmSuccess
	} else if roll > (chance + failThreshold) {
		return DisarmTrigger
	}

	return DisarmFail
}

// GetCurrentValue returns the current skill value
func (s *Skill) GetCurrentValue() int32 {
	return int32(s.CurrentVal)
}

// GetMaxValue returns the maximum skill value
func (s *Skill) GetMaxValue() int32 {
	return int32(s.MaxVal)
}

// GetName returns the skill name
func (s *Skill) GetName() string {
	return s.Name.Data
}

// GetShortName returns the skill short name
func (s *Skill) GetShortName() string {
	return s.ShortName.Data
}

// GetDescription returns the skill description
func (s *Skill) GetDescription() string {
	return s.Description.Data
}

// GetSkillType returns the skill type
func (s *Skill) GetSkillType() int32 {
	return s.SkillType
}

// IsActive returns whether the skill is active
func (s *Skill) IsActive() bool {
	return s.ActiveSkill
}

// NeedsSave returns whether the skill needs to be saved
func (s *Skill) NeedsSave() bool {
	return s.SaveNeeded
}

// SetSaveNeeded marks the skill as needing to be saved
func (s *Skill) SetSaveNeeded(needed bool) {
	s.SaveNeeded = needed
}

// SetActive sets whether the skill is active
func (s *Skill) SetActive(active bool) {
	s.ActiveSkill = active
}

// makeRandomFloat generates a random float between min and max
// TODO: Replace with proper random number generation when integrated
func makeRandomFloat(min, max float32) float32 {
	// Placeholder implementation
	return min + ((max - min) / 2.0)
}