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TrinityCore/src/common/Utilities/EventMap.h
2025-06-13 16:36:03 +02:00

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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _EVENT_MAP_H_
#define _EVENT_MAP_H_
#include "Define.h"
#include "Duration.h"
#include <map>
#include <vector>
class TC_COMMON_API EventMap
{
/**
* Internal storage type.
* Key: Time as TimePoint when the event should occur.
* Value: The event data as uint32.
*
* Structure of event data:
* - Bit 0 - 15: Event Id.
* - Bit 16 - 23: Group
* - Bit 24 - 31: Phase
* - Pattern: 0xPPGGEEEE
*/
typedef std::multimap<TimePoint, uint32> EventStore;
typedef std::map<uint32 /*event data*/, std::vector<Milliseconds>> EventSeriesStore;
public:
EventMap() : _time(TimePoint::min()), _phase(0), _lastEvent(0) { }
EventMap(EventMap const& other);
EventMap(EventMap&& other) noexcept = default;
EventMap& operator=(EventMap const& other);
EventMap& operator=(EventMap&& other) noexcept = default;
~EventMap();
/**
* @name Reset
* @brief Removes all scheduled events and resets time and phase.
*/
void Reset();
/**
* @name Update
* @brief Updates the timer of the event map.
* @param time Value in ms to be added to time.
*/
void Update(uint32 time)
{
Update(Milliseconds(time));
}
/**
* @name Update
* @brief Updates the timer of the event map.
* @param time Value in ms to be added to time.
*/
void Update(Milliseconds time)
{
_time += time;
}
/**
* @name GetPhaseMask
* @return Active phases as mask.
*/
uint8 GetPhaseMask() const
{
return _phase;
}
/**
* @name Empty
* @return True, if there are no events scheduled.
*/
bool Empty() const
{
return _eventMap.empty();
}
/**
* @name SetPhase
* @brief Sets the phase of the map (absolute).
* @param phase Phase which should be set. Values: 1 - 8. 0 resets phase.
*/
void SetPhase(uint8 phase);
/**
* @name AddPhase
* @brief Activates the given phase (bitwise).
* @param phase Phase which should be activated. Values: 1 - 8
*/
void AddPhase(uint8 phase)
{
if (phase && phase <= 8)
_phase |= uint8(1 << (phase - 1));
}
/**
* @name RemovePhase
* @brief Deactivates the given phase (bitwise).
* @param phase Phase which should be deactivated. Values: 1 - 8.
*/
void RemovePhase(uint8 phase)
{
if (phase && phase <= 8)
_phase &= uint8(~(1 << (phase - 1)));
}
/**
* @name ScheduleEvent
* @brief Schedules a new event. An existing event is not canceled.
* @param eventId The id of the new event.
* @param time The time until the event occurs as std::chrono type.
* @param group The group which the event is associated to. Has to be between 1 and 8. 0 means it has no group.
* @param phase The phase in which the event can occur. Has to be between 1 and 8. 0 means it can occur in all phases.
*/
void ScheduleEvent(uint32 eventId, Milliseconds time, uint32 group = 0, uint8 phase = 0);
/**
* @name ScheduleEvent
* @brief Schedules a new event. An existing event is not canceled.
* @param eventId The id of the new event.
* @param minTime The minimum time until the event occurs as std::chrono type.
* @param maxTime The maximum time until the event occurs as std::chrono type.
* @param group The group which the event is associated to. Has to be between 1 and 8. 0 means it has no group.
* @param phase The phase in which the event can occur. Has to be between 1 and 8. 0 means it can occur in all phases.
*/
void ScheduleEvent(uint32 eventId, Milliseconds minTime, Milliseconds maxTime, uint32 group = 0, uint8 phase = 0);
/**
* @name RescheduleEvent
* @brief Cancels the given event and reschedules it.
* @param eventId The id of the event.
* @param time The time until the event occurs as std::chrono type.
* @param group The group which the event is associated to. Has to be between 1 and 8. 0 means it has no group.
* @param phase The phase in which the event can occur. Has to be between 1 and 8. 0 means it can occur in all phases.
*/
void RescheduleEvent(uint32 eventId, Milliseconds time, uint32 group = 0, uint8 phase = 0);
/**
* @name RescheduleEvent
* @brief Cancels the given event and reschedules it.
* @param eventId The id of the event.
* @param minTime The minimum time until the event occurs as std::chrono type.
* @param maxTime The maximum time until the event occurs as std::chrono type.
* @param group The group which the event is associated to. Has to be between 1 and 8. 0 means it has no group.
* @param phase The phase in which the event can occur. Has to be between 1 and 8. 0 means it can occur in all phases.
*/
void RescheduleEvent(uint32 eventId, Milliseconds minTime, Milliseconds maxTime, uint32 group = 0, uint8 phase = 0);
/**
* @name RepeatEvent
* @brief Repeats the most recently executed event.
* @param time Time until the event occurs as std::chrono type.
*/
void Repeat(Milliseconds time);
/**
* @name RepeatEvent
* @brief Repeats the most recently executed event.
* @param minTime The minimum time until the event occurs as std::chrono type.
* @param maxTime The maximum time until the event occurs as std::chrono type.
*/
void Repeat(Milliseconds minTime, Milliseconds maxTime);
/**
* @name ExecuteEvent
* @brief Returns the next event to be executed and removes it from map.
* @return Id of the event to execute.
*/
uint32 ExecuteEvent();
/**
* @name DelayEvents
* @brief Delays all events.
* @param delay Amount of delay as std::chrono type.
*/
void DelayEvents(Milliseconds delay);
/**
* @name DelayEvents
* @brief Delay all events of the same group.
* @param delay Amount of delay as std::chrono type.
* @param group Group of the events.
*/
void DelayEvents(Milliseconds delay, uint32 group);
/**
* @name CancelEvent
* @brief Cancels all events of the specified id.
* @param eventId Event id to cancel.
*/
void CancelEvent(uint32 eventId);
/**
* @name CancelEventGroup
* @brief Cancel events belonging to specified group.
* @param group Group to cancel.
*/
void CancelEventGroup(uint32 group);
/**
* @name IsInPhase
* @brief Returns whether event map is in specified phase or not.
* @param phase Wanted phase.
* @return True, if phase of event map contains specified phase.
*/
bool IsInPhase(uint8 phase) const
{
return phase <= 8 && (!phase || _phase & (1 << (phase - 1)));
}
/**
* @name GetTimeUntilEvent
* @brief Returns time as std::chrono type until next event.
* @param eventId of the event.
* @return Time of next event. If event is not scheduled returns Milliseconds::max()
*/
Milliseconds GetTimeUntilEvent(uint32 eventId) const;
/**
* @name ScheduleNextFromSeries
* @brief Schedules specified event with next timer from series
* @param full event data, including group and phase
*/
void ScheduleNextFromSeries(uint32 eventData);
/**
* @name ScheduleEventSeries
* @brief Schedules specified event with first value of the series and then requeues with the next
* @param eventId of the event.
* @param group of the event.
* @param phase of the event.
* @param timeSeries specifying the times the event should be automatically scheduled after each trigger (first value is initial schedule)
*/
void ScheduleEventSeries(uint32 eventId, uint8 group, uint8 phase, std::initializer_list<Milliseconds> timeSeries);
/**
* @name ScheduleEventSeries
* @brief Schedules specified event with first value of the series and then requeues with the next
* @param eventId of the event.
* @param timeSeries specifying the times the event should be automatically scheduled after each trigger (first value is initial schedule)
*/
void ScheduleEventSeries(uint32 eventId, std::initializer_list<Milliseconds> series);
private:
/**
* @name _time
* @brief Internal timer.
*
* This does not represent the real date/time value.
* It's more like a stopwatch: It can run, it can be stopped,
* it can be resetted and so on. Events occur when this timer
* has reached their time value. Its value is changed in the
* Update method.
*/
TimePoint _time;
/**
* @name _phase
* @brief Phase mask of the event map.
*
* Contains the phases the event map is in. Multiple
* phases from 1 to 8 can be set with SetPhase or
* AddPhase. RemovePhase deactives a phase.
*/
uint8 _phase;
/**
* @name _eventMap
* @brief Internal event storage map. Contains the scheduled events.
*
* See typedef at the beginning of the class for more
* details.
*/
EventStore _eventMap;
/**
* @name _lastEvent
* @brief Stores information on the most recently executed event
*/
uint32 _lastEvent;
/**
* @name _timerSeries
* @brief Stores information about time series which requeue itself until series is empty
*/
EventSeriesStore _timerSeries;
};
#endif // _EVENT_MAP_H_