#ifndef COLLISION_H
#define COLLISION_H
-#include "winding.h"
-
typedef struct plane_s
{
vec3_t normal;
}
plane_t;
+struct texture_s;
typedef struct trace_s
{
// 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
// (set only by Q1BSP tracing)
int inopen;
// fraction of the total distance that was traveled before impact
// (1.0 = did not hit anything)
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)
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
+ const 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_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);
+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, const 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, const texture_t *boxtexture);
+
+void Collision_Cache_Reset(qboolean resetlimits);
+void Collision_Cache_Init(mempool_t *mempool);
+void Collision_Cache_NewFrame(void);
typedef struct colpointf_s
{
- float v[3];
+ vec3_t v;
}
colpointf_t;
typedef struct colplanef_s
{
- float normal[3];
- float dist;
+ const 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;
- // the number of bounding planes on this brush
+ // bounding planes (face planes) of 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
+ // edge directions (normals) of this brush
+ int numedgedirs;
+ colpointf_t *edgedirs;
+ // points (corners) of this brush
+ int numpoints;
colpointf_t *points;
- // renderable triangles, as int[3] elements indexing the points
+ // renderable triangles representing this brush, using the points
+ int numtriangles;
int *elements;
- // used to avoid tracing against the same brush more than once
- int markframe;
- // culling box
- vec3_t mins;
- vec3_t maxs;
+ // texture data for cases where an edgedir is used
+ const 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, int numtriangles, int supercontents);
+typedef struct colboxbrushf_s
+{
+ colpointf_t points[8];
+ colpointf_t edgedirs[6];
+ colplanef_t planes[6];
+ colbrushf_t brush;
+}
+colboxbrushf_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 mplane_t *originalplanes, int supercontents, winding_t *temp1, winding_t *temp2);
+colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, const texture_t *texture);
+colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, const 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_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, const vec3_t segmentmins, const vec3_t segmentmaxs);
+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, const 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, const vec3_t segmentmins, const vec3_t segmentmaxs);
-
-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);
+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, const 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);
-colbrushf_t *Collision_BrushForBox(const matrix4x4_t *matrix, const vec3_t mins, const vec3_t maxs);
+void Collision_BrushForBox(colboxbrushf_t *boxbrush, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, const 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, const texture_t *texture);
+void Collision_TraceBrushTriangleFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const float *v0, const float *v1, const float *v2, int supercontents, int q3surfaceflags, const 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, qboolean hitsurfaces);
+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, qboolean hitsurfaces);
+void Collision_ClipPointToWorld(trace_t *trace, dp_model_t *model, const vec3_t start, int hitsupercontents);
+// caching surface trace for renderer (NOT THREAD SAFE)
+void Collision_Cache_ClipLineToGenericEntitySurfaces(trace_t *trace, dp_model_t *model, matrix4x4_t *matrix, matrix4x4_t *inversematrix, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
+void Collision_Cache_ClipLineToWorldSurfaces(trace_t *trace, dp_model_t *model, const vec3_t start, const vec3_t end, 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 <collision_endposnudge>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
+
+
#endif
projects / xonotic / darkplaces.git / blobdiff