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class CEntity;
class CCullZone
{
public:
CVector position;
float minx;
float maxx;
float miny;
float maxy;
float minz;
float maxz;
int32 m_indexStart;
int16 m_groupIndexCount[3]; // only useful during resolution stage
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);
static bool TestLine(CVector vec1, CVector vec2);
static bool DoThoroughLineTest(CVector vec1, CVector vec2, CEntity *testEntity);
float CalcDistToCullZoneSquared(float x, float y);
float CalcDistToCullZone(float x, float y) { return Sqrt(CalcDistToCullZoneSquared(x, y)); };
bool IsEntityCloseEnoughToZone(CEntity* entity, bool checkLevel);
bool PointFallsWithinZone(CVector pos, float radius);
bool TestEntityVisibilityFromCullZone(CEntity *entity, float extraDist, CEntity *LODentity);
void FindTestPoints();
void GetGroupStartAndSize(int32 groupid, int32 &start, int32 &size) {
switch (groupid) {
case 0:
default:
// buildings
start = m_indexStart;
size = m_groupIndexCount[0];
break;
case 1:
// treadables + 10m
start = m_groupIndexCount[0] + m_indexStart;
size = m_groupIndexCount[1];
break;
case 2:
// treadables
start = m_groupIndexCount[0] + m_groupIndexCount[1] + m_indexStart;
size = m_groupIndexCount[2];
break;
}
}
};
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; }
static void BuildListForBigBuildings();
static void DoVisibilityTestCullZone(int zoneId, bool doIt);
static bool DoWeHaveMoreThanXOccurencesOfSet(int32 count, uint16 *set);
static void CompressIndicesArray();
static bool PickRandomSetForGroup(int32 zone, int32 group, uint16 *set);
static void ReplaceSetForAllGroups(uint16 *set, uint16 setid);
static void TidyUpAndMergeLists(uint16 *extraIndices, int32 numExtraIndices);
// debug
static bool LoadTempFile(void);
static void SaveTempFile(void);
};
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