package horse

import "strconv"

type SkillID int32

type TenThousandths int32

func (x TenThousandths) String() string {
	b := make([]byte, 0, 12)
	b = strconv.AppendInt(b, int64(x/1e4), 10)
	b = append(b, '.')
	if x < 0 {
		x = -x
	}
	b = strconv.AppendInt(b, int64(x%1e4), 10)
	return string(b)
}

// Skill is the internal data about a skill.
type Skill struct {
	ID          SkillID
	Name        string
	Description string
	Group       int32
	Rarity      int8
	GroupRate   int8
	GradeValue  int32
	WitCheck    bool
	Activations []Activation
	SPCost      int
	IconID      int
}

// Activation is the parameters controlling when a skill activates.
type Activation struct {
	Precondition string
	Condition    string
	Duration     TenThousandths
	Cooldown     TenThousandths
	Abilities    []Ability
}

// Ability is an individual effect applied by a skill.
type Ability struct {
	Type        AbilityType
	ValueUsage  int8
	Value       int32
	Target      int8
	TargetValue int32
}

type AbilityType int8

//go:generate go run golang.org/x/tools/cmd/stringer@v0.41.0 -type AbilityType -trimprefix Ability
const (
	AbilityPassiveSpeed   AbilityType = 1
	AbilityPassiveStamina AbilityType = 2
	AbilityPassivePower   AbilityType = 3
	AbilityPassiveGuts    AbilityType = 4
	AbilityPassiveWit     AbilityType = 5
	AbilityGreatEscape    AbilityType = 6
	AbilityVision         AbilityType = 8
	AbilityHP             AbilityType = 9
	AbilityGateDelay      AbilityType = 10
	AbilityFrenzy         AbilityType = 13
	AbilityCurrentSpeed   AbilityType = 21
	AbilityTargetSpeed    AbilityType = 27
	AbilityLaneSpeed      AbilityType = 28
	AbilityAccel          AbilityType = 31
	AbilityLaneChange     AbilityType = 35
)