-- which NPC object did the player talk to?
guards.player_talked_to = {}


guards.on_receive_fields = function(player, formname, fields)
	local name = player:get_player_name()
	local self = guards.player_talked_to[name]
	if(not(self)) then
		return
	end
	if self.owner ~= name then
		return
	end
	if fields.origin then
		self.origin.pos = self.object:get_pos()
		self.origin.yaw = self.object:get_yaw()
	end
	if fields.follow_owner and fields.follow_owner == "true" then
		self.metadata.patrol = "false"
		self.order = "follow"
		self.following = player
		minetest.chat_send_player(name,
			"New Order: "..tostring(self.order)..
			" State: "..tostring(self.state)..
			" Owner: "..tostring(self.owner))
	elseif fields.walk_speed and fields.walk_speed ~= "" and fields.walk_speed ~= tostring(self.walk_velocity) then
		self.walk_velocity = math.max(1, tonumber(fields.walk_speed)) * 1.0
	elseif fields.fear_height and fields.fear_height ~= "" and fields.fear_height ~= tostring(self.fear_height) then
		self.fear_height = math.max(1, tonumber(fields.fear_height))
	elseif fields.follow_owner and fields.follow_owner == "false" then
		self.order = "stand"
		self.following = nil
	elseif fields.patrol then
		if fields.patrol == "false" then
			self.metadata.patrol_index = 0
		end
		self.order = "patrol"
		self.following = nil
	elseif fields.add_patrol then
		local pos = self.object:get_pos()
		if pos then
			table.insert(self.metadata.patrol_points, pos)
		end
	elseif fields.clear_patrol then
		self.metadata.patrol_points = {}
	else
		return
	end
	minetest.show_formspec(name, "guards:main", guards.get_formspec(self, player))
end


guards.get_formspec = function(self, clicker)
	return "size[8,8.5]"
		.."checkbox[0.5,4.5;follow_owner;Follow;"..tostring(self.order == "follow").."]"
		.."checkbox[3.5,4.5;patrol;Patrol;"..self.metadata.patrol.."]"
		.."field[6.0,2.5;2.0.0,0.5;walk_speed;Walking speed;"..tostring(self.walk_velocity).."]"
		.."field[6.0,4.0;2.0.0,0.5;fear_height;Fear height;"..tostring(self.fear_height).."]"
		.."field[6.0,5.5;2.0.0,0.5;rest_time;Rest (sec);"..self.metadata.patrol_rest.."]"
		.."label[0.5,6.5;Patrol Points: "..#self.metadata.patrol_points.."]"
		.."button[5.5,6.5;2.5,0.5;add_patrol;Add Point]"
		.."button[3.5,6.5;2.0,0.5;clear_patrol;Clear]"
		.."button[0.0,8.0;2.0,0.5;origin;Set Origin]"
		.."button_exit[7.0,8.0;1.0,0.5;;Ok]"
end


guards.on_rightclick = function(self, clicker)
	if(not(clicker)) then
		return
	end

	-- heal with bread
	local item = clicker:get_wielded_item()
	if(item and item:get_name() == "farming:bread") then
		if(self.health < (self.hp_max or self.health)) then
			item:take_item()
			clicker:set_wielded_item(item)
			self.health = math.min((self.hp_max or self.health), self.health + 10)
		end
		return
	end

	local name = clicker:get_player_name()
	if name and name == self.owner then
		-- catch the guard with a lasso
		if mobs:capture_mob(self, clicker, nil, 100, 100, true, nil) then
			return
		end
		guards.player_talked_to[name] = self
		minetest.show_formspec(name, "guards:main", guards.get_formspec(self, clicker))
	end
end

minetest.register_on_player_receive_fields( function(player, formname, fields)
        if(formname == "guards:main") then
		guards.on_receive_fields(player, formname, fields)
                return true
        end
end)