NS/releases/3.02/source/mod/CollisionChecker.h

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#ifndef COLLISIONCHECKER_H
#define COLLISIONCHECKER_H
//-----------------------------------------------------------------------------
// Begin NS collision detection replacement
//
// Class is not reentrant, declare 1 per thread if necessary
// Implementation is split into three files -- [x]Shared, [x]Client, and [x]Server
// Client and Server code provides identical functionality under the same function
// names, but are written to address the peculiarities of each environment
//-----------------------------------------------------------------------------
typedef float nspoint_t[3]; //do this because vec3_t is inconsistantly defined.
struct OBBox
{
nspoint_t mExtents;
nspoint_t mOrigin;
nspoint_t mAxis[3];
};
class CollisionTest; //implemented internally for each collision hull type/shape
class CollisionChecker
{
public:
CollisionChecker(const playermove_t* pmove);
CollisionChecker(const playermove_t* pmove, int ns_hull_number, int hull_type_mask, bool ignore_players, int ignore_entity_class, int entity_index_to_ignore);
void SetIgnorePlayers(bool ignore_players);
void SetIgnoreEntityClass(int ignore_entity_class);
void SetEntityToIgnore(int entity_index_to_ignore);
void ClearEntityToIgnore(void);
void SetHullNumber(int ns_hull_number);
void SetHullTypeMask(int hull_type_mask);
int GetContentsAtPoint(const nspoint_t& point) const;
int GetSingleEntityContentsAtPoint(const nspoint_t& point, int pmove_index) const;
int GetWorldContentsAtPoint(const nspoint_t& point) const;
int GetAllEntityContentsAtPoint(const nspoint_t& point) const;
int GetContentsInAABB(const nspoint_t& mins, const nspoint_t& maxs) const;
int GetSingleEntityContentsInAABB(const nspoint_t& mins, const nspoint_t& maxs, int entity_index) const;
int GetWorldContentsInAABB(const nspoint_t& mins, const nspoint_t& maxs) const;
int GetAllEntityContentsInAABB(const nspoint_t& mins, const nspoint_t& maxs) const;
int GetContentsInOBB(const OBBox& bounding_box) const;
int GetSingleEntityConentsInOBB(const OBBox& bounding_box, int entity_index) const;
int GetWorldContentsInOBB(const OBBox& bounding_box) const;
int GetAllEntityContentsInOBB(const OBBox& bounding_box) const;
int GetContentsInSphere(const nspoint_t& origin, const float radius) const;
int GetSingleEntityContentsInSphere(const nspoint_t& origin, const float radius, int entity_index) const;
int GetWorldContentsInSphere(const nspoint_t& origin, const float radius) const;
int GetAllEntityContentsInSphere(const nspoint_t& origin, const float radius) const;
int GetContentsInCylinder(const nspoint_t& base, const float radius, const float height) const;
int GetSingleEntityContentsInCylinder(const nspoint_t& base, const float radius, const float height, int entity_index) const;
int GetWorldContentsInCylinder(const nspoint_t& base, const float radius, const float height) const;
int GetAllEntityContentsInCylinder(const nspoint_t& base, const float radius, const float height) const;
//for use in passing values into the system
const static int NO_ENTITY;
const static int WORLD_ENTITY;
const static int IGNORE_NONE;
const static int IGNORE_INVISIBLE;
const static int IGNORE_INTANGIBLE;
const static bool IGNORE_PLAYERS_FALSE;
const static bool IGNORE_PLAYERS_TRUE;
//for use in internal tests
const static int INTERSECTION_RELATION_NONE;
const static int INTERSECTION_RELATION_FRONT;
const static int INTERSECTION_RELATION_BACK;
const static int INTERSECTION_RELATION_BOTH;
const static int HULL_TYPE_BSP;
const static int HULL_TYPE_BBOX;
const static int HULL_TYPE_ALL;
private:
int CombineContents(const int old_contents, const int new_contents) const;
int GetHullContent(const hull_t* hull, int current_node, const CollisionTest* test) const;
int GetContents(const CollisionTest* test) const;
int GetSingleEntityContents(const CollisionTest* test, int entity_index) const;
int GetAllEntityContents(const CollisionTest* test) const;
//client/server specific
void UpdateNumEntities() const; //called once per GetAllEntityContents, sets internal entity counter
const physent_t* GetPhysentForIndex(int entity_index) const; //called by GetSingleEntityContents
const playermove_t* pmove_;
mutable physent_t local_ent;
bool ignore_players_;
int entity_index_to_ignore_;
int valve_hull_number_;
int ignore_entity_class_;
int hull_type_mask_;
mutable int entity_count_;
mutable std::vector<int> intersected_nodes_; //used for DFS hull intersect code
};
#endif