DarkflameServer/dGame/dMission/MissionTask.h

#pragma once

#include "CDMissionTasksTable.h"
#include "MissionTaskType.h"
#include "dCommonVars.h"

class Mission;

/**
 * A task that can be progressed and completed for a mission.
 */
class MissionTask final
{
public:
	MissionTask(Mission* mission, CDMissionTasks* info, uint32_t mask);
    ~MissionTask();

    /**
     * Attempts to progress this task using the provided parameters. Note that the behavior of this method is different
     * for each mission task type.
     * @param value the value to progress by
     * @param associate optional object ID of an entity that was related to the progression
     * @param targets optional multiple targets that need to be met to progress
     * @param count a number that indicates the times to progress
     */
	void Progress(int32_t value, LWOOBJID associate = 0, const std::string& targets = "", int32_t count = 1);

    /**
     * Returns the current progression of this task
     * @return the current progression of this task
     */
	uint32_t GetProgress() const;

    /**
     * Progresses the progress of this task by the provided value. Does not exceed the target progress.
     * @param value the value to progress by
     */
    void AddProgress(int32_t value);

    /**
     * Sets the progress of the task and optionally notifies the client
     * @param value the value to set for the progress
     * @param echo if true, this will notify the client of the change
     */
    void SetProgress(uint32_t value, bool echo = true);

    /**
     * Returns the mission this task belongs to
     * @return the mission this task belongs to
     */
	Mission* GetMission() const;

    /**
     * Returns the type of this task
     * @return the type of this task
     */
	MissionTaskType GetType() const;

    /**
     * Returns the value that should be progressed to, to complete the mission (the target value)
     * @return the target value
     */
	uint32_t GetTarget() const;

    /**
     * Returns the database information for this mission
     * @return the database information for this mission
     */
	const CDMissionTasks& GetClientInfo() const;

    /**
     * Returns the mask for this mission, used for communicating updates
     * @return the mask for this mission, used for communicating updates
     */
	uint32_t GetMask() const;

    /**
     * Returns the currently visited list of unique locations (only used for visiting mission types)
     * @return the currently visited list of unique locations
     */
	const std::vector<uint32_t>& GetUnique() const;

    /**
     * Sets the uniquely visited list of locations
     * @param value the uniquely visited list of locations
     */
    void SetUnique(const std::vector<uint32_t>& value);

    /**
     * Returns the possibly target values for this mission task for progression
     * @return the possibly target values for this mission task for progression
     */
	const std::vector<uint32_t>& GetTargets() const;

    /**
     * Returns the parameters for this task: meta information that determines if the task can be progressed. Note:
     * not used by all task types.
     * @return the parameters for this task
     */
	const std::vector<uint32_t>& GetParameters() const;

    /**
     * Returns all the target values for this mission, including the target value concatenated by the optional list of
     * targets parsed as ints.
     * @return all the targets for this task
     */
	std::vector<uint32_t> GetAllTargets() const;

    /**
     * Returns whether the value is in the list of target values of this task
     * @param value the value to check for
     * @return true if the value is in the target list, false otherwise
     */
	bool InTargets(uint32_t value) const;

    /**
     * Returns whether the value is in one of the target values or equals the individual target value of this task
     * @param value the value to check for
     * @return true if the value is one of the targets, false otherwise
     */
	bool InAllTargets(uint32_t value) const;

    /**
     * Checks if the provided is one of the parameters for this task
     * @param value the value to check for
     * @return true if the value is one of the parameters, false otherwise
     */
	bool InParameters(uint32_t value) const;

    /**
     * Checks if this task has been completed by comparing its progress against the target value
     * @return true if the task has been completed, false otherwise
     */
	bool IsComplete() const;

    /**
     * Completes the mission by setting the progress to the required value
     */
	void Complete();

private:

    /**
     * Datbase information about this task
     */
	CDMissionTasks* info;

    /**
     * The mission this task belongs to
     */
	Mission* mission;

    /**
     * Mask used for communicating mission updates
     */
	uint32_t mask;

    /**
     * The current progression towards the target
     */
	uint32_t progress;

    /**
     * The list of target values for progressing this task
     */
	std::vector<uint32_t> targets;

    /**
     * The list of parameters for progressing this task (not used by all task types)
     */
	std::vector<uint32_t> parameters;

    /**
     * The unique places visited for progression (not used by all task types)
     */
	std::vector<uint32_t> unique;

    /**
     * Checks if the task is complete, and if so checks if the parent mission is complete
     */
	void CheckCompletion() const;
};