#ifndef COLLISION_H
#define COLLISION_H
-typedef struct
+typedef struct plane_s
{
vec3_t normal;
float dist;
-} plane_t;
+}
+plane_t;
-typedef struct
+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;
// 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;
+ // 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);
+
+typedef struct colpointf_s
+{
+ float v[3];
+}
+colpointf_t;
+
+typedef struct colplanef_s
+{
+ 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;
+
+colbrushf_t *Collision_AllocBrushFloat(mempool_t *mempool, int numpoints, int numplanes, int numtriangles, int supercontents);
+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);
+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_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_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);
+
+colbrushf_t *Collision_BrushForBox(const matrix4x4_t *matrix, const vec3_t mins, const vec3_t maxs);
+
+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);
+
+// 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
projects / xonotic / darkplaces.git / blobdiff