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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef GROUNDBLOCKINGOBJECTMAP_H
#define GROUNDBLOCKINGOBJECTMAP_H
#include <vector>
#include "Sim/Objects/SolidObject.h"
#include "System/creg/creg_cond.h"
#include "System/float3.h"
typedef std::vector<CSolidObject*> BlockingMapCell;
typedef std::vector<BlockingMapCell> BlockingMap;
class CGroundBlockingObjectMap
{
CR_DECLARE_STRUCT(CGroundBlockingObjectMap)
public:
CGroundBlockingObjectMap(int numSquares) {
groundBlockingMap.clear();
groundBlockingMap.resize(numSquares);
}
unsigned int CalcChecksum() const;
void AddGroundBlockingObject(CSolidObject* object);
void AddGroundBlockingObject(CSolidObject* object, const YardMapStatus& mask);
void RemoveGroundBlockingObject(CSolidObject* object);
void OpenBlockingYard(CSolidObject* object);
void CloseBlockingYard(CSolidObject* object);
bool CanOpenYard(CSolidObject* object) const;
bool CanCloseYard(CSolidObject* object) const;
// these retrieve either the first object in
// a given cell, or NULL if the cell is empty
CSolidObject* GroundBlocked(int x, int z) const;
CSolidObject* GroundBlocked(const float3& pos) const;
// same as GroundBlocked(), but does not bounds-check mapSquare
CSolidObject* GroundBlockedUnsafe(unsigned int mapSquare) const {
const BlockingMapCell& cell = GetCellUnsafeConst(mapSquare);
if (cell.empty())
return nullptr;
return (*cell.begin());
}
bool GroundBlocked(int x, int z, const CSolidObject* ignoreObj) const;
bool GroundBlocked(const float3& pos, const CSolidObject* ignoreObj) const;
bool ObjectInCell(unsigned int mapSquare, const CSolidObject* obj) const {
if (mapSquare >= groundBlockingMap.size())
return false;
const BlockingMapCell& cell = GetCellUnsafeConst(mapSquare);
const auto it = std::find(cell.cbegin(), cell.cend(), obj);
return (it != cell.cend());
}
const BlockingMapCell& GetCellUnsafeConst(unsigned int mapSquare) const {
assert(mapSquare < groundBlockingMap.size());
return groundBlockingMap[mapSquare];
}
BlockingMapCell& GetCellUnsafe(unsigned int mapSquare) {
return (const_cast<BlockingMapCell&>(GetCellUnsafeConst(mapSquare)));
}
private:
bool CheckYard(CSolidObject* yardUnit, const YardMapStatus& mask) const;
private:
BlockingMap groundBlockingMap;
};
extern CGroundBlockingObjectMap* groundBlockingObjectMap;
#endif
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