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class MonsterSpawn < ApplicationRecord
belongs_to :monster
belongs_to :location
has_many :monster_spawn_combats
after_initialize :set_starting_hp
after_create :send_chat_message
validates :starting_hp, presence: true, numericality: { greater_than_or_equal_to: 1, only_integer: true }
validate :one_living_leviathan_per_location, on: :create
def alive?
self.remaining_hp > 0
end
def remaining_hp
self.starting_hp - MonsterSpawnCombat.where(monster_spawn: self).sum(:hp_lost)
end
private
def set_starting_hp
self.starting_hp = monster.max_hp
end
def send_chat_message
chat_message = ChatMessage.new(body: "A leviathan has appeared in #{location.name}!",
chat_room: ChatRoom.find_by_gid("news"))
if chat_message.save
ChatRoomChannel.broadcast_chat_message(chat_message)
end
end
def one_living_leviathan_per_location
# TODO: Don't load into memory
if location.monster_spawns.find { |ms| ms.alive? && ms != self }
errors.add(:chat, "A location can only have one monster spawn at a time.")
end
end
end
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