--
--Specialization LED Tankanzeige - fuelIndicators
--8 LEDs zeigen den Füllstand an
--Tank voll 8 LEDs leuchten
--

fueldisplay = {};

function fueldisplay.prerequisitesPresent(specializations)
    return SpecializationUtil.hasSpecialization(Motorized, specializations);
end;

function fueldisplay:load(xmlFile)
	
	self.fuelIndicatorsGroup = {};
	
	--fuelIndicators
	self.fuelIndicatorsGroup = Utils.indexToObject(self.components, getXMLString(xmlFile, "vehicle.fuelIndicators#index"));
	self.numFuelIndicators = Utils.getNoNil(getXMLInt(xmlFile, "vehicle.fuelIndicators#count"), 0);
	self.fuelIndicators = {};
    for i=1, self.numFuelIndicators do
        local objname = string.format("vehicle.fuelIndicators.fuelIndicator" .. "%d", i);
		self.fuelIndicators[i] = {};
        self.fuelIndicators[i].rotNode = Utils.indexToObject(self.components, getXMLString(xmlFile, objname .. "#rotNode"));
		setVisibility(self.fuelIndicators[i].rotNode,true);
    end;

	
	--fuelwarningSound
    fuelwarningSoundFile = Utils.getFilename("Sounds/fuelwarning.wav", self.baseDirectory);
    self.fuelwarningSoundId = createSample("fuelwarningSound");
    loadSample(self.fuelwarningSoundId, fuelwarningSoundFile, false);
    self.fuelwarningPlaying = false;
	self.playedSound = false;

function fueldisplay:delete()
	end;

function fueldisplay:readStream(streamId, connection)
	end;

function fueldisplay:writeStream(streamId, connection)
	end;

function fueldisplay:readUpdateStream(streamId, timestamp, connection)
	end;

function fueldisplay:writeUpdateStream(streamId, connection, dirtyMask)
	end;

function fueldisplay:mouseEvent(posX, posY, isDown, isUp, button)
	end;

function fueldisplay:keyEvent(unicode, sym, modifier, isDown)
	end;
	
	--update??
function fueldisplay:updateFuelIndicators()
	local amountOfFuelPerIndicator = self.fuelCapacity/8; --Anzahl der "Led" Einträge in der Vehicle.xml!
	local timesToIterate = self.fuelFillLevel/amountOfFuelPerIndicator;
	timesToIterate = math.floor(timesToIterate);
	if self.oldTimesToIterate ~= timesToIterate then
		for i=1, self.numFuelIndicators do
			setVisibility(self.fuelIndicators[i].rotNode, false);
		end;
		for i=1, timesToIterate do
			setVisibility(self.fuelIndicators[i].rotNode, true);
		end;
	end;
	self.oldTimesToIterate = timesToIterate;
end;
	end;

			
	function fueldisplay:updateTick(dt)
    if self:getIsActive() then
		if self.isMotorStarted then
			setVisibility(self.fuelIndicatorsGroup, true);
		else
			setVisibility(self.fuelIndicatorsGroup, false);
		end;
		
	--draw??
function fueldisplay:draw()
	end;
		end;
			end;