package game

type item int8

const (
	itemNone item = iota
	itemLens
	itemCig
	itemBeer
	itemCuff
	itemKnife
)

func newItem(rng *xoshiro) item {
	return item(rng.Intn(5)) + 1
}

func (i item) apply(g *Match) bool {
	switch i {
	case itemNone:
		return false
	case itemLens:
		// Lenses are always used, even if they have no effect.
		g.action = actLens
		g.reveal = true
		return true
	case itemCig:
		cur := g.CurrentPlayer()
		if cur.hp < g.hp {
			cur.hp++
			// Cigs are always used, even if they have no effect.
		}
		g.action = actCig
		return true
	case itemBeer:
		g.popShell()
		g.action = actBeer
		if g.Empty() {
			g.action = actBeerGameEnd
			g.NextGame()
		}
		return true
	case itemCuff:
		opp := g.Opponent()
		if opp.cuffs != uncuffed {
			return false
		}
		g.action = actCuff
		opp.cuffs = cuffedSkip
		return true
	case itemKnife:
		if g.damage != 1 {
			return false
		}
		g.action = actKnife
		g.damage = 2
		return true
	default:
		panic("shotgun: unknown item")
	}
}

var itemNames = [...]string{"", "🔍", "🚬", "🍺", "👮", "🔪"}

func (i item) String() string {
	return itemNames[i]
}