last_light/game/npc/rpg_npc.go

package npc

import (
	"mvvasilev/last_light/engine"
	"mvvasilev/last_light/game/item"
	"mvvasilev/last_light/game/rpg"

	"github.com/gdamore/tcell/v2"
)

type RPGNPC interface {
	NPC
	rpg.RPGEntity
	EquippedEntity
}

type BasicRPGNPC struct {
	inventory *item.EquippedInventory

	*BasicNPC
	*rpg.BasicRPGEntity
}

func CreateRPGNPC(x, y int, name string, representation rune, style tcell.Style, stats map[rpg.Stat]int) *BasicRPGNPC {
	rpgnpc := &BasicRPGNPC{
		inventory: item.CreateEquippedInventory(),
		BasicNPC: CreateNPC(
			engine.PositionAt(x, y),
			name,
			representation,
			style,
		),
		BasicRPGEntity: rpg.CreateBasicRPGEntity(
			0,
			stats,
			map[rpg.Stat][]rpg.StatModifier{},
		),
	}

	rpgnpc.Heal(rpg.BaseMaxHealth(rpgnpc))

	return rpgnpc
}

func (rnpc *BasicRPGNPC) Inventory() *item.EquippedInventory {
	return rnpc.inventory
}

func (p *BasicRPGNPC) CalculateAttack(other rpg.RPGEntity) (hit bool, precisionRoll, evasionRoll int, damage int, damageType rpg.DamageType) {
	mainHand := p.inventory.AtSlot(item.EquippedSlotDominantHand)

	switch mh := mainHand.(type) {
	case rpg.RPGItem:
		return rpg.PhysicalWeaponAttack(p, mh, other)
	default:
		return rpg.UnarmedAttack(p, other)
	}
}