mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-11-15 00:41:55 +00:00
282 lines
8.8 KiB
C
282 lines
8.8 KiB
C
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake III Arena source code is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Foobar; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
|
|
#include "qbsp.h"
|
|
#include "../botlib/aasfile.h"
|
|
#include "aas_create.h"
|
|
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int AAS_TryMergeFaces(tmp_face_t *face1, tmp_face_t *face2)
|
|
{
|
|
winding_t *neww;
|
|
|
|
#ifdef DEBUG
|
|
if (!face1->winding) Error("face1 %d without winding", face1->num);
|
|
if (!face2->winding) Error("face2 %d without winding", face2->num);
|
|
#endif //DEBUG
|
|
//
|
|
if (face1->faceflags != face2->faceflags) return false;
|
|
//NOTE: if the front or back area is zero this doesn't mean there's
|
|
//a real area. It means there's solid at that side of the face
|
|
//if both faces have the same front area
|
|
if (face1->frontarea == face2->frontarea)
|
|
{
|
|
//if both faces have the same back area
|
|
if (face1->backarea == face2->backarea)
|
|
{
|
|
//if the faces are in the same plane
|
|
if (face1->planenum == face2->planenum)
|
|
{
|
|
//if they have both a front and a back area (no solid on either side)
|
|
if (face1->frontarea && face1->backarea)
|
|
{
|
|
neww = MergeWindings(face1->winding, face2->winding,
|
|
mapplanes[face1->planenum].normal);
|
|
} //end if
|
|
else
|
|
{
|
|
//this function is to be found in l_poly.c
|
|
neww = TryMergeWinding(face1->winding, face2->winding,
|
|
mapplanes[face1->planenum].normal);
|
|
} //end else
|
|
if (neww)
|
|
{
|
|
FreeWinding(face1->winding);
|
|
face1->winding = neww;
|
|
if (face2->frontarea) AAS_RemoveFaceFromArea(face2, face2->frontarea);
|
|
if (face2->backarea) AAS_RemoveFaceFromArea(face2, face2->backarea);
|
|
AAS_FreeTmpFace(face2);
|
|
return true;
|
|
} //end if
|
|
} //end if
|
|
else if ((face1->planenum & ~1) == (face2->planenum & ~1))
|
|
{
|
|
Log_Write("face %d and %d, same front and back area but flipped planes\r\n",
|
|
face1->num, face2->num);
|
|
} //end if
|
|
} //end if
|
|
} //end if
|
|
return false;
|
|
} //end of the function AAS_TryMergeFaces
|
|
/*
|
|
int AAS_TryMergeFaces(tmp_face_t *face1, tmp_face_t *face2)
|
|
{
|
|
winding_t *neww;
|
|
|
|
#ifdef DEBUG
|
|
if (!face1->winding) Error("face1 %d without winding", face1->num);
|
|
if (!face2->winding) Error("face2 %d without winding", face2->num);
|
|
#endif //DEBUG
|
|
//if the faces are in the same plane
|
|
if ((face1->planenum & ~1) != (face2->planenum & ~1)) return false;
|
|
// if (face1->planenum != face2->planenum) return false;
|
|
//NOTE: if the front or back area is zero this doesn't mean there's
|
|
//a real area. It means there's solid at that side of the face
|
|
//if both faces have the same front area
|
|
if (face1->frontarea != face2->frontarea ||
|
|
face1->backarea != face2->backarea)
|
|
{
|
|
if (!face1->frontarea || !face1->backarea ||
|
|
!face2->frontarea || !face2->backarea) return false;
|
|
else if (face1->frontarea != face2->backarea ||
|
|
face1->backarea != face2->frontarea) return false;
|
|
// return false;
|
|
} //end if
|
|
//this function is to be found in l_poly.c
|
|
neww = TryMergeWinding(face1->winding, face2->winding,
|
|
mapplanes[face1->planenum].normal);
|
|
if (!neww) return false;
|
|
//
|
|
FreeWinding(face1->winding);
|
|
face1->winding = neww;
|
|
//remove face2
|
|
if (face2->frontarea)
|
|
AAS_RemoveFaceFromArea(face2, &tmpaasworld.areas[face2->frontarea]);
|
|
if (face2->backarea)
|
|
AAS_RemoveFaceFromArea(face2, &tmpaasworld.areas[face2->backarea]);
|
|
return true;
|
|
} //end of the function AAS_TryMergeFaces*/
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
void AAS_MergeAreaFaces(void)
|
|
{
|
|
int num_facemerges = 0;
|
|
int side1, side2, restart;
|
|
tmp_area_t *tmparea, *lasttmparea;
|
|
tmp_face_t *face1, *face2;
|
|
|
|
Log_Write("AAS_MergeAreaFaces\r\n");
|
|
qprintf("%6d face merges", num_facemerges);
|
|
//NOTE: first convex area is a dummy
|
|
lasttmparea = tmpaasworld.areas;
|
|
for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next)
|
|
{
|
|
restart = false;
|
|
//
|
|
if (tmparea->invalid) continue;
|
|
//
|
|
for (face1 = tmparea->tmpfaces; face1; face1 = face1->next[side1])
|
|
{
|
|
side1 = face1->frontarea != tmparea;
|
|
for (face2 = face1->next[side1]; face2; face2 = face2->next[side2])
|
|
{
|
|
side2 = face2->frontarea != tmparea;
|
|
//if succesfully merged
|
|
if (AAS_TryMergeFaces(face1, face2))
|
|
{
|
|
//start over again after merging two faces
|
|
restart = true;
|
|
num_facemerges++;
|
|
qprintf("\r%6d", num_facemerges);
|
|
AAS_CheckArea(tmparea);
|
|
break;
|
|
} //end if
|
|
} //end for
|
|
if (restart)
|
|
{
|
|
tmparea = lasttmparea;
|
|
break;
|
|
} //end if
|
|
} //end for
|
|
lasttmparea = tmparea;
|
|
} //end for
|
|
qprintf("\n");
|
|
Log_Write("%6d face merges\r\n", num_facemerges);
|
|
} //end of the function AAS_MergeAreaFaces
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
void AAS_MergePlaneFaces(tmp_area_t *tmparea, int planenum)
|
|
{
|
|
tmp_face_t *face1, *face2, *nextface2;
|
|
winding_t *neww;
|
|
int side1, side2;
|
|
|
|
for (face1 = tmparea->tmpfaces; face1; face1 = face1->next[side1])
|
|
{
|
|
side1 = face1->frontarea != tmparea;
|
|
if (face1->planenum != planenum) continue;
|
|
//
|
|
for (face2 = face1->next[side1]; face2; face2 = nextface2)
|
|
{
|
|
side2 = face2->frontarea != tmparea;
|
|
nextface2 = face2->next[side2];
|
|
//
|
|
if ((face2->planenum & ~1) != (planenum & ~1)) continue;
|
|
//
|
|
neww = MergeWindings(face1->winding, face2->winding,
|
|
mapplanes[face1->planenum].normal);
|
|
FreeWinding(face1->winding);
|
|
face1->winding = neww;
|
|
if (face2->frontarea) AAS_RemoveFaceFromArea(face2, face2->frontarea);
|
|
if (face2->backarea) AAS_RemoveFaceFromArea(face2, face2->backarea);
|
|
AAS_FreeTmpFace(face2);
|
|
//
|
|
nextface2 = face1->next[side1];
|
|
} //end for
|
|
} //end for
|
|
} //end of the function AAS_MergePlaneFaces
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int AAS_CanMergePlaneFaces(tmp_area_t *tmparea, int planenum)
|
|
{
|
|
tmp_area_t *frontarea, *backarea;
|
|
tmp_face_t *face1;
|
|
int side1, merge, faceflags;
|
|
|
|
frontarea = backarea = NULL;
|
|
merge = false;
|
|
for (face1 = tmparea->tmpfaces; face1; face1 = face1->next[side1])
|
|
{
|
|
side1 = face1->frontarea != tmparea;
|
|
if ((face1->planenum & ~1) != (planenum & ~1)) continue;
|
|
if (!frontarea && !backarea)
|
|
{
|
|
frontarea = face1->frontarea;
|
|
backarea = face1->backarea;
|
|
faceflags = face1->faceflags;
|
|
} //end if
|
|
else
|
|
{
|
|
if (frontarea != face1->frontarea) return false;
|
|
if (backarea != face1->backarea) return false;
|
|
if (faceflags != face1->faceflags) return false;
|
|
merge = true;
|
|
} //end else
|
|
} //end for
|
|
return merge;
|
|
} //end of the function AAS_CanMergePlaneFaces
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
void AAS_MergeAreaPlaneFaces(void)
|
|
{
|
|
int num_facemerges = 0;
|
|
int side1;
|
|
tmp_area_t *tmparea, *nexttmparea;
|
|
tmp_face_t *face1;
|
|
|
|
Log_Write("AAS_MergePlaneFaces\r\n");
|
|
qprintf("%6d plane face merges", num_facemerges);
|
|
//NOTE: first convex area is a dummy
|
|
for (tmparea = tmpaasworld.areas; tmparea; tmparea = nexttmparea)
|
|
{
|
|
nexttmparea = tmparea->l_next;
|
|
//
|
|
if (tmparea->invalid) continue;
|
|
//
|
|
for (face1 = tmparea->tmpfaces; face1; face1 = face1->next[side1])
|
|
{
|
|
side1 = face1->frontarea != tmparea;
|
|
//
|
|
if (AAS_CanMergePlaneFaces(tmparea, face1->planenum))
|
|
{
|
|
AAS_MergePlaneFaces(tmparea, face1->planenum);
|
|
nexttmparea = tmparea;
|
|
num_facemerges++;
|
|
qprintf("\r%6d", num_facemerges);
|
|
break;
|
|
} //end if
|
|
} //end for
|
|
} //end for
|
|
qprintf("\n");
|
|
Log_Write("%6d plane face merges\r\n", num_facemerges);
|
|
} //end of the function AAS_MergeAreaPlaneFaces
|