X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=collision.h;h=bb539f5eef44903804987eefa61b984cc940783e;hp=36111951fb44fc709fd906c9ade834630f2655e7;hb=10523a94c80615aeccfa84c81bbffe11335ca4a7;hpb=1019743b2072b60aa1a2897b04c7cbb8f94454d1 diff --git a/collision.h b/collision.h index 36111951..bb539f5e 100644 --- a/collision.h +++ b/collision.h @@ -2,41 +2,127 @@ #ifndef COLLISION_H #define COLLISION_H -typedef struct +typedef struct plane_s { vec3_t normal; float dist; -} plane_t; +} +plane_t; -typedef struct +struct texture_s; +typedef struct trace_s { - // if true, the entire trace was in solid - qboolean allsolid; - // if true, the initial point was in solid - qboolean startsolid; + // if true, the entire trace was in solid (see hitsupercontentsmask) + int allsolid; + // if true, the initial point was in solid (see hitsupercontentsmask) + int startsolid; + // this is set to true in world.c if startsolid was set in a trace against a SOLID_BSP entity, in other words this is true if the entity is stuck in a door or wall, but not if stuck in another normal entity + int bmodelstartsolid; // if true, the trace passed through empty somewhere - qboolean inopen; - // if true, the trace passed through water somewhere - qboolean inwater; + // (set only by Q1BSP tracing) + int inopen; + // if true, the trace passed through water/slime/lava somewhere + // (set only by Q1BSP tracing) + int inwater; // fraction of the total distance that was traveled before impact // (1.0 = did not hit anything) - double fraction; - // final position - double endpos[3]; - // surface normal at impact - plane_t plane; + double fraction; + // like fraction but is not nudged away from the surface (better for + // comparisons between two trace structs, as only one nudge for the final + // result is ever needed) + double realfraction; + // final position of the trace (simply a point between start and end) + double endpos[3]; + // surface normal at impact (not really correct for edge collisions) + plane_t plane; // entity the surface is on - void *ent; - // if not zero, treats this value as empty, and all others as solid (impact - // on content change) - int startcontents; - // the contents that was hit at the end or impact point - int endcontents; + // (not set by trace functions, only by physics) + void *ent; + // which SUPERCONTENTS bits to collide with, I.E. to consider solid + // (this also affects startsolid/allsolid) + int hitsupercontentsmask; + // the supercontents mask at the start point + int startsupercontents; + // the supercontents of the impacted surface + int hitsupercontents; + // the q3 surfaceflags of the impacted surface + int hitq3surfaceflags; + // the texture of the impacted surface + struct texture_s *hittexture; + // initially false, set when the start leaf is found + // (set only by Q1BSP tracing and entity box tracing) + int startfound; } trace_t; -void Collision_RoundUpToHullSize(const model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs); -void Collision_Init (void); -void Collision_ClipTrace (trace_t *trace, const void *cent, const model_t *cmodel, const vec3_t corigin, const vec3_t cangles, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end); +void Collision_Init(void); +void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture); + +typedef struct colpointf_s +{ + float v[3]; +} +colpointf_t; + +typedef struct colplanef_s +{ + struct texture_s *texture; + int q3surfaceflags; + float normal[3]; + float dist; +} +colplanef_t; + +typedef struct colbrushf_s +{ + // the content flags of this brush + int supercontents; + // the number of bounding planes on this brush + int numplanes; + // the number of corner points on this brush + int numpoints; + // the number of renderable triangles on this brush + int numtriangles; + // array of bounding planes on this brush + colplanef_t *planes; + // array of corner points on this brush + colpointf_t *points; + // renderable triangles, as int[3] elements indexing the points + int *elements; + // used to avoid tracing against the same brush more than once + int markframe; + // culling box + vec3_t mins; + vec3_t maxs; +} +colbrushf_t; + +void Collision_CalcPlanesForPolygonBrushFloat(colbrushf_t *brush); +colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents); +colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents); +void Collision_TraceBrushBrushFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end); +void Collision_TraceBrushPolygonFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points, int supercontents); +void Collision_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs); +void Collision_TraceLineBrushFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end); +void Collision_TraceLinePolygonFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numpoints, const float *points, int supercontents); +void Collision_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs); +void Collision_TracePointBrushFloat(trace_t *trace, const vec3_t point, const colbrushf_t *thatbrush); + +void Collision_TraceBrushPolygonTransformFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points, const matrix4x4_t *polygonmatrixstart, const matrix4x4_t *polygonmatrixend, int supercontents, int q3surfaceflags, texture_t *texture); + +colbrushf_t *Collision_BrushForBox(const matrix4x4_t *matrix, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, texture_t *texture); + +void Collision_BoundingBoxOfBrushTraceSegment(const colbrushf_t *start, const colbrushf_t *end, vec3_t mins, vec3_t maxs, float startfrac, float endfrac); + +float Collision_ClipTrace_Line_Sphere(double *linestart, double *lineend, double *sphereorigin, double sphereradius, double *impactpoint, double *impactnormal); +void Collision_TraceLineTriangleFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const float *point0, const float *point1, const float *point2, int supercontents, int q3surfaceflags, texture_t *texture); + +// this enables rather large debugging spew! +// settings: +// 0 = no spew +// 1 = spew trace calls if something odd is happening +// 2 = spew trace calls always +// 3 = spew detailed trace flow (bsp tree recursion info) +#define COLLISIONPARANOID 0 #endif