X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=collision.h;h=52c52e87c14997c535a01f96cafed97b7238d603;hb=b19c27fd82074c42e1aba5b9d293f70f90995d02;hp=0e746e4ee643f308f44bcc4f7bd426bd1730dea9;hpb=d3135507efcf1249b03e440b62bd07b0f935ca39;p=xonotic%2Fdarkplaces.git diff --git a/collision.h b/collision.h index 0e746e4e..52c52e87 100644 --- a/collision.h +++ b/collision.h @@ -9,99 +9,173 @@ typedef struct plane_s } plane_t; +struct texture_s; typedef struct trace_s { - // if true, the entire trace was in solid + // if true, the entire trace was in solid (see hitsupercontentsmask) int allsolid; - // if true, the initial point was in solid + // 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 + // (set only by Q1BSP tracing) int inopen; - // if true, the trace passed through water somewhere + // 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 + // 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 + // surface normal at impact (not really correct for edge collisions) plane_t plane; // entity the surface is on + // (not set by trace functions, only by physics) void *ent; - // if not zero, treats this value as empty, and all others as solid (impact - // on content change) - int thiscontents; - // the contents at the impact or end point - int endcontents; + // 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; + // if startsolid, contains the minimum penetration depth found in the + // trace, and the normal needed to push it out of that solid + double startdepth; + double startdepthnormal[3]; } 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_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); +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); +void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture); typedef struct colpointf_s { - float v[3]; + vec3_t v; } colpointf_t; typedef struct colplanef_s { - float normal[3]; - float dist; + struct texture_s *texture; + int q3surfaceflags; + vec3_t normal; + vec_t dist; } colplanef_t; typedef struct colbrushf_s { + // culling box + vec3_t mins; + vec3_t maxs; + // used to avoid tracing against the same brush more than once per sweep + int markframe; + // the content flags of this brush + int supercontents; + // bounding planes (face planes) of this brush int numplanes; - int numpoints; colplanef_t *planes; + // edge directions (normals) of this brush + int numedgedirs; + colpointf_t *edgedirs; + // points (corners) of this brush + int numpoints; colpointf_t *points; + // renderable triangles representing this brush, using the points + int numtriangles; + int *elements; + // texture data for cases where an edgedir is used + struct texture_s *texture; + int q3surfaceflags; + // optimized collisions for common cases + int isaabb; // indicates this is an axis aligned box + int hasaabbplanes; // indicates this has precomputed planes for AABB collisions } colbrushf_t; -colbrushf_t *Collision_AllocBrushFloat(mempool_t *mempool, int numpoints, int numplanes); -void Collision_CalcPlanesForPolygonBrushFloat(colbrushf_t *brush); -colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points); -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); -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); - -typedef struct colpointd_s -{ - double v[3]; -} -colpointd_t; - -typedef struct colplaned_s -{ - double normal[3]; - double dist; -} -colplaned_t; - -typedef struct colbrushd_s +typedef struct colboxbrushf_s { - int numplanes; - int numpoints; - colplaned_t *planes; - colpointd_t *points; + colpointf_t points[8]; + colpointf_t edgedirs[6]; + colplanef_t planes[6]; + colbrushf_t brush; } -colbrushd_t; - -colbrushd_t *Collision_AllocBrushDouble(mempool_t *mempool, int numpoints, int numplanes); -void Collision_CalcPlanesForPolygonBrushDouble(colbrushd_t *brush); -colbrushd_t *Collision_AllocBrushFromPermanentPolygonDouble(mempool_t *mempool, int numpoints, double *points); -void Collision_TraceBrushBrushDouble(trace_t *trace, const colbrushd_t *thisbrush_start, const colbrushd_t *thisbrush_end, const colbrushd_t *thatbrush_start, const colbrushd_t *thatbrush_end); -void Collision_TraceBrushPolygonDouble(trace_t *trace, const colbrushd_t *thisbrush_start, const colbrushd_t *thisbrush_end, int numpoints, const double *points); +colboxbrushf_t; -void Collision_TraceBrushBModel(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, model_t *model); -void Collision_TraceBrushBModelTransform(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, model_t *model, const matrix4x4_t *modelmatrixstart, const matrix4x4_t *modelmatrixend); - -void Collision_PolygonClipTrace(trace_t *trace, const void *cent, 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_CalcPlanesForPolygonBrushFloat(colbrushf_t *brush); +colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, texture_t *texture); +colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, texture_t *texture, int hasaabbplanes); +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_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, 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_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, 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); +qboolean Collision_PointInsideBrushFloat(const vec3_t point, const colbrushf_t *brush); + +void Collision_BrushForBox(colboxbrushf_t *boxbrush, 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); + +// traces a box move against a single entity +// mins and maxs are relative +// +// if the entire move stays in a single solid brush, trace.allsolid will be set +// +// if the starting point is in a solid, it will be allowed to move out to an +// open area, and trace.startsolid will be set +// +// type is one of the MOVE_ values such as MOVE_NOMONSTERS which skips box +// entities, only colliding with SOLID_BSP entities (doors, lifts) +// +// passedict is excluded from clipping checks +struct frameblend_s; +struct skeleton_s; +void Collision_ClipToGenericEntity(trace_t *trace, dp_model_t *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, const vec3_t bodymins, const vec3_t bodymaxs, int bodysupercontents, matrix4x4_t *matrix, matrix4x4_t *inversematrix, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask); +void Collision_ClipLineToGenericEntity(trace_t *trace, dp_model_t *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, const vec3_t bodymins, const vec3_t bodymaxs, int bodysupercontents, matrix4x4_t *matrix, matrix4x4_t *inversematrix, const vec3_t start, const vec3_t end, int hitsupercontentsmask); +void Collision_ClipPointToGenericEntity(trace_t *trace, dp_model_t *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, const vec3_t bodymins, const vec3_t bodymaxs, int bodysupercontents, matrix4x4_t *matrix, matrix4x4_t *inversematrix, const vec3_t start, int hitsupercontentsmask); +// like above but does not do a transform and does nothing if model is NULL +void Collision_ClipToWorld(trace_t *trace, dp_model_t *model, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontents); +void Collision_ClipLineToWorld(trace_t *trace, dp_model_t *model, const vec3_t start, const vec3_t end, int hitsupercontents); +void Collision_ClipPointToWorld(trace_t *trace, dp_model_t *model, const vec3_t start, int hitsupercontents); +// combines data from two traces: +// merges contents flags, startsolid, allsolid, inwater +// updates fraction, endpos, plane and surface info if new fraction is shorter +void Collision_CombineTraces(trace_t *cliptrace, const trace_t *trace, void *touch, qboolean isbmodel); + +// shorten a trace by the given factor +void Collision_ShortenTrace(trace_t *trace, float shorten_factor, const vec3_t end); + +// 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 + +// make every trace qu longer, and shorten the result, to work around a stupid bug somewhere +#define COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND +#ifdef COLLISION_STUPID_TRACE_ENDPOS_IN_SOLID_WORKAROUND +extern cvar_t collision_endposnudge; +#endif -colbrushf_t *Collision_BrushForBox(const matrix4x4_t *matrix, const vec3_t mins, const vec3_t maxs); #endif