ref: 3ba533fb9d5e013768813983fc0a4464f4ba13ac
dir: qk1/world.h
typedef struct
{
vec3_t normal;
float dist;
} plane_t;
typedef struct
{
qboolean allsolid; // if true, plane is not valid
qboolean startsolid; // if true, the initial point was in a solid area
qboolean inopen, inwater;
float fraction; // time completed, 1.0 = didn't hit anything
vec3_t endpos; // final position
plane_t plane; // surface normal at impact
edict_t *ent; // entity the surface is on
} trace_t;
#define MOVE_NORMAL 0
#define MOVE_NOMONSTERS 1
#define MOVE_MISSILE 2
void SV_ClearWorld (void);
// called after the world model has been loaded, before linking any entities
void SV_UnlinkEdict (edict_t *ent);
// call before removing an entity, and before trying to move one,
// so it doesn't clip against itself
// flags ent->v.modified
void SV_LinkEdict (edict_t *ent, qboolean touch_triggers);
// Needs to be called any time an entity changes origin, mins, maxs, or solid
// flags ent->v.modified
// sets ent->v.absmin and ent->v.absmax
// if touchtriggers, calls prog functions for the intersected triggers
int SV_PointContents (vec3_t p);
int SV_TruePointContents (vec3_t p);
// returns the CONTENTS_* value from the world at the given point.
// does not check any entities at all
// the non-true version remaps the water current contents to content_water
edict_t *SV_TestEntityPosition (edict_t *ent);
qboolean SV_RecursiveHullCheck (hull_t *hull, int num, float p1f, float p2f,
vec3_t p1, vec3_t p2, trace_t *trace);
trace_t SV_Move (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int type, edict_t *passedict);
// mins and maxs are reletive
// if the entire move stays in a solid volume, trace.allsolid will be set
// if the starting point is in a solid, it will be allowed to move out
// to an open area
// nomonsters is used for line of sight or edge testing, where mosnters
// shouldn't be considered solid objects
// passedict is explicitly excluded from clipping checks (normally NULL)