class "action_process_hit"

function action_process_hit:__init(obj, storage)
	self.object = obj
	self.st = storage
end

function action_process_hit:hit_callback(obj, amount, local_direction, who, bone_index)
	db.storage[self.object:id()].hit.bone_index = bone_index
	if amount == 0 and not(obj:invulnerable()) then
		-- FIXME if_then_else
--		printf("[%s] hit by [%s]: 0 damage, ignoring", obj:name(), if_then_else(who, who:name(), "<no one>"))
		return
	end
	if who then
		printf("[%s] hit by [%s]", obj:name(), who:name())
		db.storage[obj:id()].hit.who = who:id()
	else
		printf("[%s] hit by [Unknown]", victim:name())
		db.storage[obj:id()].hit.who = -1
	end
	if db.storage[self.object:id()].active_scheme then
		--printf("DEADLY HIT %s %s", amount, self.object.health)
		db.storage[self.object:id()].hit.deadly_hit = amount >= self.object.health*100

		if xr_logic.try_switch_to_another_section(obj, db.storage[self.object:id()].hit, db.actor) then
			db.storage[self.object:id()].hit.deadly_hit = false
			return
		end
		db.storage[self.object:id()].hit.deadly_hit = false
	end
end

----------------------------------------------------------------------------------------------------------------------
-- binder
----------------------------------------------------------------------------------------------------------------------
function add_to_binder(npc, ini, scheme, section, storage)
 	local new_action = this.action_process_hit(npc, storage)
	storage.action = new_action
end

function set_hit_checker(npc, ini, scheme, section)
	local st = xr_logic.assign_storage_and_bind(npc, ini, scheme, section)
	
	if not ini:section_exist(section) then
		abort("There is no section [%s] for npc [%s]", section, npc:name())
	end
	
	st.logic = xr_logic.cfg_get_switch_conditions(ini, section, npc)

	-- НЕ СТАВИТЬ hit callback напрямую - получаем его из motivator-а через
	-- event в подписанном на него action-е:
	--npc:set_callback(callback.hit, st.action.hit_callback, st.action)
	xr_logic.subscribe_action_for_events(npc, st, st.action)
end

function disable_scheme(npc, scheme)
	-- При отключении схемы, нужно снять подписку, чтобы hit callback перестал
	-- передаваться:
	--npc:set_callback(callback.hit, nil)
	local st = db.storage[npc:id()][scheme]
	if st then
		xr_logic.unsubscribe_action_from_events(npc, st, st.action)
	end
end