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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef GROUP_H
#define GROUP_H
#include <vector>
#include "Sim/Units/CommandAI/Command.h"
#include "System/creg/creg_cond.h"
#include "System/float3.h"
#include "System/UnorderedSet.hpp"
class CUnit;
class CFeature;
/**
* Logic group of units denoted by a number.
* A group-ID/-number is unique per team (-> per groupHandler).
*/
class CGroup
{
CR_DECLARE_STRUCT(CGroup)
public:
CGroup() = default;
CGroup(int _id, int _ghIndex): id(_id), ghIndex(_ghIndex) {}
CGroup(const CGroup& ) = delete;
CGroup( CGroup&&) = default;
~CGroup() = default;
CGroup& operator = (const CGroup& ) = delete;
CGroup& operator = ( CGroup&&) = default;
void PostLoad();
void Update() { RemoveIfEmptySpecialGroup(); }
/**
* Note: Call unit.SetGroup(NULL) instead of calling this directly.
*/
void RemoveUnit(CUnit* unit);
/**
* Note: Call unit.SetGroup(group) instead of calling this directly.
*/
bool AddUnit(CUnit* unit);
void ClearUnits();
float3 CalculateCenter() const;
private:
void RemoveIfEmptySpecialGroup();
public:
int id = -1;
int ghIndex = -1;
spring::unordered_set<int> units;
};
#endif // GROUP_H
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