mirror of
https://github.com/nzp-team/vhlt.git
synced 2024-11-24 21:02:22 +00:00
739 lines
19 KiB
C++
739 lines
19 KiB
C++
#pragma warning(disable: 4267) // 'size_t' to 'unsigned int', possible loss of data
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#include "bsp5.h"
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// PointInLeaf
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// PlaceOccupant
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// MarkLeakTrail
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// RecursiveFillOutside
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// ClearOutFaces_r
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// isClassnameAllowableOutside
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// FreeAllowableOutsideList
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// LoadAllowableOutsideList
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// FillOutside
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static int outleafs;
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static int valid;
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static int c_falsenodes;
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static int c_free_faces;
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static int c_keep_faces;
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// =====================================================================================
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// PointInLeaf
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// =====================================================================================
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static node_t* PointInLeaf(node_t* node, const vec3_t point)
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{
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vec_t d;
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#ifdef ZHLT_DETAILBRUSH
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if (node->isportalleaf)
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#else
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if (node->contents)
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#endif
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{
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//Log("PointInLeaf::node->contents == %i\n", node->contents);
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return node;
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}
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d = DotProduct(g_dplanes[node->planenum].normal, point) - g_dplanes[node->planenum].dist;
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if (d > 0)
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return PointInLeaf(node->children[0], point);
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return PointInLeaf(node->children[1], point);
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}
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// =====================================================================================
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// PlaceOccupant
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// =====================================================================================
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static bool PlaceOccupant(const int num, const vec3_t point, node_t* headnode)
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{
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node_t* n;
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n = PointInLeaf(headnode, point);
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if (n->contents == CONTENTS_SOLID)
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{
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return false;
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}
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//Log("PlaceOccupant::n->contents == %i\n", n->contents);
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n->occupied = num;
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return true;
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}
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// =====================================================================================
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// MarkLeakTrail
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// =====================================================================================
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static portal_t* prevleaknode;
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static FILE* pointfile;
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static FILE* linefile;
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static void MarkLeakTrail(portal_t* n2)
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{
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int i;
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vec3_t p1, p2, dir;
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float len;
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portal_t* n1;
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n1 = prevleaknode;
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prevleaknode = n2;
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if (!n1)
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{
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return;
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}
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#ifdef HLBSP_MarkLeakTrail_FIX
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n1->winding->getCenter(p1);
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n2->winding->getCenter(p2);
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#else
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n2->winding->getCenter(p1);
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n1->winding->getCenter(p2);
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#endif
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// Linefile
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fprintf(linefile, "%f %f %f - %f %f %f\n", p1[0], p1[1], p1[2], p2[0], p2[1], p2[2]);
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// Pointfile
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fprintf(pointfile, "%f %f %f\n", p1[0], p1[1], p1[2]);
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VectorSubtract(p2, p1, dir);
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len = VectorLength(dir);
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VectorNormalize(dir);
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while (len > 2)
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{
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fprintf(pointfile, "%f %f %f\n", p1[0], p1[1], p1[2]);
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for (i = 0; i < 3; i++)
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p1[i] += dir[i] * 2;
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len -= 2;
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}
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}
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// =====================================================================================
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// RecursiveFillOutside
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// Returns true if an occupied leaf is reached
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// If fill is false, just check, don't fill
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// =====================================================================================
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#ifdef ZHLT_DETAILBRUSH
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static void FreeDetailNode_r (node_t *n)
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{
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int i;
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if (n->planenum == -1)
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{
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if (!(n->isportalleaf && n->contents == CONTENTS_SOLID))
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{
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free (n->markfaces);
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n->markfaces = NULL;
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}
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return;
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}
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for (i = 0; i < 2; i++)
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{
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FreeDetailNode_r (n->children[i]);
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free (n->children[i]);
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n->children[i] = NULL;
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}
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face_t *f, *next;
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for (f = n->faces; f; f = next)
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{
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next = f->next;
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FreeFace (f);
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}
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n->faces = NULL;
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}
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static void FillLeaf (node_t *l)
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{
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if (!l->isportalleaf)
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{
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Warning ("FillLeaf: not leaf");
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return;
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}
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if (l->contents == CONTENTS_SOLID)
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{
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Warning ("FillLeaf: fill solid");
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return;
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}
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FreeDetailNode_r (l);
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l->contents = CONTENTS_SOLID;
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l->planenum = -1;
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}
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#endif
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static int hit_occupied;
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static int backdraw;
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static bool RecursiveFillOutside(node_t* l, const bool fill)
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{
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portal_t* p;
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int s;
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if ((l->contents == CONTENTS_SOLID) || (l->contents == CONTENTS_SKY)
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#ifdef ZHLT_DETAIL
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|| (l->contents == CONTENTS_DETAIL)
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#endif
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)
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{
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/*if (l->contents != CONTENTS_SOLID)
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Log("RecursiveFillOutside::l->contents == %i \n", l->contents);*/
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return false;
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}
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if (l->valid == valid)
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{
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return false;
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}
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if (l->occupied)
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{
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hit_occupied = l->occupied;
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backdraw = 1000;
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return true;
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}
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l->valid = valid;
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// fill it and it's neighbors
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if (fill)
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{
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#ifdef ZHLT_DETAILBRUSH
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FillLeaf (l);
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#else
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l->contents = CONTENTS_SOLID;
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l->planenum = -1;
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#endif
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}
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outleafs++;
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for (p = l->portals; p;)
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{
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s = (p->nodes[0] == l);
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if (RecursiveFillOutside(p->nodes[s], fill))
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{ // leaked, so stop filling
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if (backdraw-- > 0)
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{
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MarkLeakTrail(p);
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}
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return true;
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}
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p = p->next[!s];
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}
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return false;
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}
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// =====================================================================================
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// ClearOutFaces_r
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// Removes unused nodes
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// =====================================================================================
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#ifdef ZHLT_DETAILBRUSH
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static void MarkFacesInside_r (node_t *node)
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{
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if (node->planenum == -1)
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{
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face_t **fp;
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for (fp = node->markfaces; *fp; fp++)
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{
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(*fp)->outputnumber = 0;
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}
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}
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else
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{
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MarkFacesInside_r (node->children[0]);
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MarkFacesInside_r (node->children[1]);
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}
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}
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#endif
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static node_t* ClearOutFaces_r(node_t* node)
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{
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face_t* f;
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face_t* fnext;
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#ifndef ZHLT_DETAILBRUSH
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face_t** fp;
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#endif
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portal_t* p;
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// mark the node and all it's faces, so they
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// can be removed if no children use them
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node->valid = 0; // will be set if any children touch it
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for (f = node->faces; f; f = f->next)
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{
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f->outputnumber = -1;
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}
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// go down the children
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#ifdef ZHLT_DETAILBRUSH
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if (!node->isportalleaf)
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#else
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if (node->planenum != -1)
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#endif
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{
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//
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// decision node
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//
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node->children[0] = ClearOutFaces_r(node->children[0]);
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node->children[1] = ClearOutFaces_r(node->children[1]);
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// free any faces not in open child leafs
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f = node->faces;
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node->faces = NULL;
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for (; f; f = fnext)
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{
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fnext = f->next;
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if (f->outputnumber == -1)
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{ // never referenced, so free it
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c_free_faces++;
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FreeFace(f);
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}
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else
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{
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c_keep_faces++;
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f->next = node->faces;
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node->faces = f;
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}
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}
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if (!node->valid)
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{
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// Here leaks memory. --vluzacn
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// this node does not touch any interior leafs
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// if both children are solid, just make this node solid
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if (node->children[0]->contents == CONTENTS_SOLID && node->children[1]->contents == CONTENTS_SOLID)
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{
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node->contents = CONTENTS_SOLID;
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node->planenum = -1;
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#ifdef ZHLT_DETAILBRUSH
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node->isportalleaf = true;
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#endif
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return node;
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}
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// if one child is solid, shortcut down the other side
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if (node->children[0]->contents == CONTENTS_SOLID)
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{
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return node->children[1];
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}
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if (node->children[1]->contents == CONTENTS_SOLID)
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{
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return node->children[0];
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}
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c_falsenodes++;
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}
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return node;
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}
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//
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// leaf node
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//
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if (node->contents != CONTENTS_SOLID)
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{
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// this node is still inside
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// mark all the nodes used as portals
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for (p = node->portals; p;)
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{
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if (p->onnode)
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{
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p->onnode->valid = 1;
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}
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if (p->nodes[0] == node) // only write out from first leaf
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{
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p = p->next[0];
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}
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else
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{
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p = p->next[1];
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}
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}
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#ifdef ZHLT_DETAILBRUSH
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MarkFacesInside_r (node);
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#else
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// mark all of the faces to be drawn
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for (fp = node->markfaces; *fp; fp++)
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{
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(*fp)->outputnumber = 0;
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}
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#endif
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return node;
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}
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#ifndef ZHLT_DETAILBRUSH
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// this was a filled in node, so free the markfaces
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if (node->planenum != -1)
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{
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free(node->markfaces);
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}
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#endif
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return node;
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}
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// =====================================================================================
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// isClassnameAllowableOutside
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// =====================================================================================
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#define MAX_ALLOWABLE_OUTSIDE_GROWTH_SIZE 64
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unsigned g_nAllowableOutside = 0;
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unsigned g_maxAllowableOutside = 0;
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char** g_strAllowableOutsideList;
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bool isClassnameAllowableOutside(const char* const classname)
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{
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if (g_strAllowableOutsideList)
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{
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unsigned x;
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char** list = g_strAllowableOutsideList;
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for (x = 0; x < g_nAllowableOutside; x++, list++)
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{
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if (list)
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{
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if (!strcasecmp(classname, *list))
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{
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return true;
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}
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}
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}
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}
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return false;
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}
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// =====================================================================================
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// FreeAllowableOutsideList
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// =====================================================================================
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void FreeAllowableOutsideList()
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{
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if (g_strAllowableOutsideList)
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{
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free(g_strAllowableOutsideList);
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g_strAllowableOutsideList = NULL;
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}
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}
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// =====================================================================================
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// LoadAllowableOutsideList
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// =====================================================================================
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void LoadAllowableOutsideList(const char* const filename)
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{
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char* fname;
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int i, x, y;
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char* pData;
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char* pszData;
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if (!filename)
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{
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return;
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}
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else
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{
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unsigned len = strlen(filename) + 5;
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fname = (char*)Alloc(len);
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safe_snprintf(fname, len, "%s", filename);
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}
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if (q_exists(fname))
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{
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if ((i = LoadFile(fname, &pData)))
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{
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Log("Reading allowable void entities from file '%s'\n", fname);
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g_nAllowableOutside = 0;
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for (pszData = pData, y = 0, x = 0; x < i; x++)
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{
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if ((pData[x] == '\n') || (pData[x] == '\r'))
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{
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pData[x] = 0;
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if (strlen(pszData))
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{
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if (g_nAllowableOutside == g_maxAllowableOutside)
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{
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g_maxAllowableOutside += MAX_ALLOWABLE_OUTSIDE_GROWTH_SIZE;
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g_strAllowableOutsideList =
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(char**)realloc(g_strAllowableOutsideList, sizeof(char*) * g_maxAllowableOutside);
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}
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g_strAllowableOutsideList[y++] = pszData;
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g_nAllowableOutside++;
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Verbose("Adding entity '%s' to the allowable void list\n", pszData);
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}
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pszData = pData + x + 1;
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}
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}
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}
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}
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}
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// =====================================================================================
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// FillOutside
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// =====================================================================================
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node_t* FillOutside(node_t* node, const bool leakfile, const unsigned hullnum)
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{
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int s;
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int i;
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bool inside;
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bool ret;
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vec3_t origin;
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const char* cl;
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Verbose("----- FillOutside ----\n");
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if (g_nofill)
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{
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Log("skipped\n");
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return node;
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}
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#ifdef HLBSP_REMOVEHULL2
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if (hullnum == 2 && g_nohull2)
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return node;
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#endif
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//
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// place markers for all entities so
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// we know if we leak inside
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//
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inside = false;
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for (i = 1; i < g_numentities; i++)
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{
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GetVectorForKey(&g_entities[i], "origin", origin);
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cl = ValueForKey(&g_entities[i], "classname");
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if (!isClassnameAllowableOutside(cl))
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{
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/*if (!VectorCompare(origin, vec3_origin))
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*/ if (*ValueForKey(&g_entities[i], "origin")) //--vluzacn
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{
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origin[2] += 1; // so objects on floor are ok
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// nudge playerstart around if needed so clipping hulls allways
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// have a vlaid point
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if (!strcmp(cl, "info_player_start"))
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{
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int x, y;
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for (x = -16; x <= 16; x += 16)
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{
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for (y = -16; y <= 16; y += 16)
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{
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origin[0] += x;
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origin[1] += y;
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if (PlaceOccupant(i, origin, node))
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{
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inside = true;
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goto gotit;
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}
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origin[0] -= x;
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origin[1] -= y;
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}
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}
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gotit:;
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}
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else
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{
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if (PlaceOccupant(i, origin, node))
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inside = true;
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}
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}
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}
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}
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if (!inside)
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{
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Warning("No entities exist in hull %i, no filling performed for this hull", hullnum);
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return node;
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}
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if(!g_outside_node.portals)
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{
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Warning("No outside node portal found in hull %i, no filling performed for this hull",hullnum);
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return node;
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}
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s = !(g_outside_node.portals->nodes[1] == &g_outside_node);
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// first check to see if an occupied leaf is hit
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outleafs = 0;
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valid++;
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prevleaknode = NULL;
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if (leakfile)
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{
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pointfile = fopen(g_pointfilename, "w");
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if (!pointfile)
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{
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Error("Couldn't open pointfile %s\n", g_pointfilename);
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}
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linefile = fopen(g_linefilename, "w");
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if (!linefile)
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{
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Error("Couldn't open linefile %s\n", g_linefilename);
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}
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}
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ret = RecursiveFillOutside(g_outside_node.portals->nodes[s], false);
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if (leakfile)
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{
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fclose(pointfile);
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fclose(linefile);
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}
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if (ret)
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{
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GetVectorForKey(&g_entities[hit_occupied], "origin", origin);
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{
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Warning("=== LEAK in hull %i ===\nEntity %s @ (%4.0f,%4.0f,%4.0f)",
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hullnum, ValueForKey(&g_entities[hit_occupied], "classname"), origin[0], origin[1], origin[2]);
|
|
PrintOnce(
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"\n A LEAK is a hole in the map, where the inside of it is exposed to the\n"
|
|
"(unwanted) outside region. The entity listed in the error is just a helpful\n"
|
|
"indication of where the beginning of the leak pointfile starts, so the\n"
|
|
"beginning of the line can be quickly found and traced to until reaching the\n"
|
|
"outside. Unless this entity is accidentally on the outside of the map, it\n"
|
|
"probably should not be deleted. Some complex rotating objects entities need\n"
|
|
"their origins outside the map. To deal with these, just enclose the origin\n"
|
|
"brush with a solid world brush\n");
|
|
}
|
|
|
|
if (!g_bLeaked)
|
|
{
|
|
// First leak spits this out
|
|
Log("Leak pointfile generated\n\n");
|
|
}
|
|
|
|
if (g_bLeakOnly)
|
|
{
|
|
Error("Stopped by leak.");
|
|
}
|
|
|
|
g_bLeaked = true;
|
|
|
|
return node;
|
|
}
|
|
#ifdef HLBSP_DELETELEAKFILE
|
|
if (leakfile && !ret)
|
|
{
|
|
unlink(g_linefilename);
|
|
unlink(g_pointfilename);
|
|
}
|
|
#endif
|
|
|
|
// now go back and fill things in
|
|
valid++;
|
|
RecursiveFillOutside(g_outside_node.portals->nodes[s], true);
|
|
|
|
// remove faces and nodes from filled in leafs
|
|
c_falsenodes = 0;
|
|
c_free_faces = 0;
|
|
c_keep_faces = 0;
|
|
node = ClearOutFaces_r(node);
|
|
|
|
Verbose("%5i outleafs\n", outleafs);
|
|
Verbose("%5i freed faces\n", c_free_faces);
|
|
Verbose("%5i keep faces\n", c_keep_faces);
|
|
Verbose("%5i falsenodes\n", c_falsenodes);
|
|
|
|
// save portal file for vis tracing
|
|
if ((hullnum == 0) && leakfile)
|
|
{
|
|
WritePortalfile(node);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
#ifdef HLBSP_FILL
|
|
void ResetMark_r (node_t* node)
|
|
{
|
|
#ifdef ZHLT_DETAILBRUSH
|
|
if (node->isportalleaf)
|
|
#else
|
|
if (node->planenum == -1)
|
|
#endif
|
|
{
|
|
if (node->contents == CONTENTS_SOLID || node->contents == CONTENTS_SKY)
|
|
{
|
|
node->empty = 0;
|
|
}
|
|
else
|
|
{
|
|
node->empty = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ResetMark_r (node->children[0]);
|
|
ResetMark_r (node->children[1]);
|
|
}
|
|
}
|
|
void MarkOccupied_r (node_t* node)
|
|
{
|
|
if (node->empty == 1)
|
|
{
|
|
node->empty = 0;
|
|
portal_t* p;
|
|
int s;
|
|
for (p = node->portals; p; p = p->next[!s])
|
|
{
|
|
s = (p->nodes[0] == node);
|
|
MarkOccupied_r (p->nodes[s]);
|
|
}
|
|
}
|
|
}
|
|
void RemoveUnused_r (node_t* node)
|
|
{
|
|
#ifdef ZHLT_DETAILBRUSH
|
|
if (node->isportalleaf)
|
|
#else
|
|
if (node->planenum == -1)
|
|
#endif
|
|
{
|
|
if (node->empty == 1)
|
|
{
|
|
#ifdef ZHLT_DETAILBRUSH
|
|
FillLeaf (node);
|
|
#else
|
|
node->contents = CONTENTS_SOLID;
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
RemoveUnused_r (node->children[0]);
|
|
RemoveUnused_r (node->children[1]);
|
|
}
|
|
}
|
|
void FillInside (node_t* node)
|
|
{
|
|
int i;
|
|
g_outside_node.empty = 0;
|
|
ResetMark_r (node);
|
|
for (i = 1; i < g_numentities; i++)
|
|
{
|
|
if (*ValueForKey(&g_entities[i], "origin"))
|
|
{
|
|
vec3_t origin;
|
|
node_t* innode;
|
|
GetVectorForKey(&g_entities[i], "origin", origin);
|
|
origin[2] += 1;
|
|
innode = PointInLeaf (node, origin);
|
|
MarkOccupied_r (innode);
|
|
origin[2] -= 2;
|
|
innode = PointInLeaf (node, origin);
|
|
MarkOccupied_r (innode);
|
|
}
|
|
}
|
|
RemoveUnused_r (node);
|
|
}
|
|
#endif
|