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path: root/src/core/ZoneCull.h
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class CCullZone
{
public:
	CVector position;
	float minx;
	float maxx;
	float miny;
	float maxy;
	float minz;
	float maxz;

	// TODO: figure these out:
	int32 m_indexStart;
	int16 unk2;
	int16 unk3;
	int16 unk4;
	int16 m_numBuildings;
	int16 m_numTreadablesPlus10m;
	int16 m_numTreadables;

	void DoStuffLeavingZone(void);
	static void DoStuffLeavingZone_OneBuilding(uint16 i);
	static void DoStuffLeavingZone_OneTreadableBoth(uint16 i);
	void DoStuffEnteringZone(void);
	static void DoStuffEnteringZone_OneBuilding(uint16 i);
	static void DoStuffEnteringZone_OneTreadablePlus10m(uint16 i);
	static void DoStuffEnteringZone_OneTreadable(uint16 i);
};

enum eZoneAttribs
{
	ATTRZONE_CAMCLOSEIN		= 1,
	ATTRZONE_STAIRS			= 2,
	ATTRZONE_1STPERSON		= 4,
	ATTRZONE_NORAIN			= 8,
	ATTRZONE_NOPOLICE		= 0x10,
	ATTRZONE_NOTCULLZONE		= 0x20,
	ATTRZONE_DOINEEDCOLLISION	= 0x40,
	ATTRZONE_SUBWAYVISIBLE		= 0x80,
};

struct CAttributeZone
{
	float minx;
	float maxx;
	float miny;
	float maxy;
	float minz;
	float maxz;
	int16 attributes;
	int16 wantedLevel;
};

class CCullZones
{
public:
	static int32     &NumCullZones;
	static CCullZone *aZones;	// [NUMCULLZONES];
	static int32     &NumAttributeZones;
	static CAttributeZone *aAttributeZones;	// [NUMATTRIBZONES];
	static uint16    *aIndices;	// [NUMZONEINDICES];
	static int16     *aPointersToBigBuildingsForBuildings;	// [NUMBUILDINGS];
	static int16     *aPointersToBigBuildingsForTreadables;	// [NUMTREADABLES];

	static int32 &CurrentWantedLevelDrop_Player;
	static int32 &CurrentFlags_Camera;
	static int32 &CurrentFlags_Player;
	static int32 &OldCullZone;
	static int32 &EntityIndicesUsed;
	static bool &bCurrentSubwayIsInvisible;
	static bool &bCullZonesDisabled;

	static void Init(void);
	static void ResolveVisibilities(void);
	static void Update(void);
	static void ForceCullZoneCoors(CVector coors);
	static int32 FindCullZoneForCoors(CVector coors);
	static int32 FindAttributesForCoors(CVector coors, int32 *wantedLevel);
	static CAttributeZone *FindZoneWithStairsAttributeForPlayer(void);
	static void MarkSubwayAsInvisible(bool visible);
	static void AddCullZone(CVector const &position,
		float minx, float maxx,
		float miny, float maxy,
		float minz, float maxz,
		uint16 flag, int16 wantedLevel);
	static bool CamCloseInForPlayer(void) { return (CurrentFlags_Player & ATTRZONE_CAMCLOSEIN) != 0; }
	static bool CamStairsForPlayer(void) { return (CurrentFlags_Player & ATTRZONE_STAIRS) != 0; }
	static bool Cam1stPersonForPlayer(void) { return (CurrentFlags_Player & ATTRZONE_1STPERSON) != 0; }
	static bool NoPolice(void) { return (CurrentFlags_Player & ATTRZONE_NOPOLICE) != 0; }
	static bool DoINeedToLoadCollision(void) { return (CurrentFlags_Player & ATTRZONE_DOINEEDCOLLISION) != 0; }
	static bool PlayerNoRain(void) { return (CurrentFlags_Player & ATTRZONE_NORAIN) != 0; }
	static bool CamNoRain(void) { return (CurrentFlags_Camera & ATTRZONE_NORAIN) != 0; }
	static int32 GetWantedLevelDrop(void) { return CurrentWantedLevelDrop_Player; }
};