registerNewTask

local objectiveTask = {}
objectiveTask.id = "base_task"

function objectiveTask:init(objectiveObject)
	self.objective = objectiveObject
	self.progressTable = {}
end

function objectiveTask:initConfig(cfg)
	self.config = cfg
	-- abstract

end

function objectiveTask:onStart()
	-- abstract

end

function objectiveTask:onGameLogicStarted()
	-- abstract, called when finishing loading

end

function objectiveTask:onFinish()
	-- check whether we should disable the failstate when this task gets finished

	if self.config.disableFailStateOnFinish then
		local failstate = self.objective:getFailState()
		
		if failstate then
			failstate:disable()
		end
	end
end

function objectiveTask:handleEvent(...)
	-- abstract

end

function objectiveTask:setHasStarted(state)
	self.hasStartedTask = state
end

function objectiveTask:hasStarted()
	return self.hasStartedTask
end

function objectiveTask:getProgress()
	local current, max = self:getProgressValues()
	self.progressTable[1] = current
	self.progressTable[2] = math.min(current, max)
	
	return self.progressTable
end

function objectiveTask:getProgressValues()
	return self.completed and 1 or 0, 1
end

function objectiveTask:getProgressData(targetTable)
	if self.config.getProgressData then
		self.config:getProgressData(targetTable, self)
	end
end

function objectiveTask:getProgressPercentage()
	local current, max = self:getProgressValues()
	
	return current / math.min(current, max)
end

function objectiveTask:isFinished()
	return self.completed -- default callback

end

function objectiveTask:remove()
	-- abstract

end

function objectiveTask:save()
	return {
		id = self.id,
		completed = self.completed,
		hasStartedTask = self.hasStartedTask
	} -- abstract

end

function objectiveTask:load(data)
	self.completed = data.completed
	self.hasStartedTask = data.hasStartedTask
	-- abstract

end

objectiveHandler:registerNewTask(objectiveTask)