feast/src/game/items.ts

import { TextLike, LiveText, DynText, Word, ImproperNoun } from './language'
import { Actionable, Action, DamageFormula, ConstantDamageFormula, Damage, DamageType, Vigor, StatDamageFormula, Stat } from './combat'
import { AttackAction } from './combat/actions'

export interface Item extends Actionable {
  name: Word;
  desc: TextLike;
}

export class Weapon implements Actionable {
  actions: Array<Action> = []

  constructor (public name: Word, public desc: TextLike, damageFormula: DamageFormula) {
    const attack = new AttackAction(damageFormula)
    attack.desc = new DynText(`Attack with your `, this.name.all)
    this.actions.push(attack)
  }
}

export const Sword = new Weapon(
  new ImproperNoun('sword', 'swords'),
  'An arming sword',
  new StatDamageFormula([
    { fraction: 0.35, stat: Stat.Power, target: Vigor.Health, type: DamageType.Slash },
    { fraction: 0.25, stat: Stat.Power, target: Vigor.Health, type: DamageType.Pierce }
  ])
)

export const Dagger = new Weapon(
  new ImproperNoun('dagger', 'daggers'),
  'A pointy dagger',
  new StatDamageFormula([
    { fraction: 0.50, stat: Stat.Speed, target: Vigor.Health, type: DamageType.Pierce },
    { fraction: 0.05, stat: Stat.Speed, target: Vigor.Health, type: DamageType.Slash }
  ])
)

export const Wand = new Weapon(
  new ImproperNoun('wand', 'wands'),
  'A magical wand',
  new StatDamageFormula([
    { fraction: 0.25, stat: Stat.Charm, target: Vigor.Health, type: DamageType.Crush },
    { fraction: 0.25, stat: Stat.Willpower, target: Vigor.Health, type: DamageType.Crush }
  ])
)

export const Mace = new Weapon(
  new ImproperNoun('mace', 'maces'),
  'A heavy mace',
  new StatDamageFormula([
    { fraction: 0.4, stat: Stat.Power, target: Vigor.Health, type: DamageType.Crush },
    { fraction: 0.2, stat: Stat.Power, target: Vigor.Health, type: DamageType.Pierce }
  ])
)