extends Node

const APPLE = 0
const GRAPE = 1

const NONE       = "NONE"
const SHURIKEN   = "SHURIKEN"
const FIREBALL   = "FIREBALL"
const FIRE_SWIRL = "FIRE_SWIRL"
const TORNADO    = "TORNADO"

# Each spell's display recipe: sorted apples-first, grapes-last
var recipes: Dictionary = {
	SHURIKEN:   [APPLE, GRAPE, GRAPE],
	FIREBALL:   [APPLE, APPLE, APPLE],
	FIRE_SWIRL: [APPLE, APPLE, GRAPE],
	TORNADO:    [GRAPE, GRAPE, GRAPE],
}

# Takes cauldron slot_states (uses texture indices: 2 = apple, 4 = grape)
# and returns which spell that combination brews.
func identify(cauldron_slots: Array) -> String:
	var apples = cauldron_slots.count(2)
	var grapes = cauldron_slots.count(4)
	for spell_id in recipes:
		var r: Array = recipes[spell_id]
		if r.count(APPLE) == apples and r.count(GRAPE) == grapes:
			return spell_id
	return NONE

func get_recipe(spell: String) -> Array:
	return recipes.get(spell, [])