From 952c5c128f9efaea89d41d882c4ea3ade7df4591 Mon Sep 17 00:00:00 2001 From: zakk Date: Fri, 26 Aug 2005 04:48:05 +0000 Subject: Itsa me, quake3io! git-svn-id: svn://svn.icculus.org/quake3/trunk@2 edf5b092-35ff-0310-97b2-ce42778d08ea --- code/bspc/aas_create.c | 1142 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1142 insertions(+) create mode 100755 code/bspc/aas_create.c (limited to 'code/bspc/aas_create.c') diff --git a/code/bspc/aas_create.c b/code/bspc/aas_create.c new file mode 100755 index 0000000..914b25b --- /dev/null +++ b/code/bspc/aas_create.c @@ -0,0 +1,1142 @@ +/* +=========================================================================== +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" +#include "aas_store.h" +#include "aas_gsubdiv.h" +#include "aas_facemerging.h" +#include "aas_areamerging.h" +#include "aas_edgemelting.h" +#include "aas_prunenodes.h" +#include "aas_cfg.h" +#include "../game/surfaceflags.h" + +//#define AW_DEBUG +//#define L_DEBUG + +#define AREAONFACESIDE(face, area) (face->frontarea != area) + +tmp_aas_t tmpaasworld; + +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitTmpAAS(void) +{ + //tmp faces + tmpaasworld.numfaces = 0; + tmpaasworld.facenum = 0; + tmpaasworld.faces = NULL; + //tmp convex areas + tmpaasworld.numareas = 0; + tmpaasworld.areanum = 0; + tmpaasworld.areas = NULL; + //tmp nodes + tmpaasworld.numnodes = 0; + tmpaasworld.nodes = NULL; + // + tmpaasworld.nodebuffer = NULL; +} //end of the function AAS_InitTmpAAS +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeTmpAAS(void) +{ + tmp_face_t *f, *nextf; + tmp_area_t *a, *nexta; + tmp_nodebuf_t *nb, *nextnb; + + //free all the faces + for (f = tmpaasworld.faces; f; f = nextf) + { + nextf = f->l_next; + if (f->winding) FreeWinding(f->winding); + FreeMemory(f); + } //end if + //free all tmp areas + for (a = tmpaasworld.areas; a; a = nexta) + { + nexta = a->l_next; + if (a->settings) FreeMemory(a->settings); + FreeMemory(a); + } //end for + //free all the tmp nodes + for (nb = tmpaasworld.nodebuffer; nb; nb = nextnb) + { + nextnb = nb->next; + FreeMemory(nb); + } //end for +} //end of the function AAS_FreeTmpAAS +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +tmp_face_t *AAS_AllocTmpFace(void) +{ + tmp_face_t *tmpface; + + tmpface = (tmp_face_t *) GetClearedMemory(sizeof(tmp_face_t)); + tmpface->num = tmpaasworld.facenum++; + tmpface->l_prev = NULL; + tmpface->l_next = tmpaasworld.faces; + if (tmpaasworld.faces) tmpaasworld.faces->l_prev = tmpface; + tmpaasworld.faces = tmpface; + tmpaasworld.numfaces++; + return tmpface; +} //end of the function AAS_AllocTmpFace +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeTmpFace(tmp_face_t *tmpface) +{ + if (tmpface->l_next) tmpface->l_next->l_prev = tmpface->l_prev; + if (tmpface->l_prev) tmpface->l_prev->l_next = tmpface->l_next; + else tmpaasworld.faces = tmpface->l_next; + //free the winding + if (tmpface->winding) FreeWinding(tmpface->winding); + //free the face + FreeMemory(tmpface); + tmpaasworld.numfaces--; +} //end of the function AAS_FreeTmpFace +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +tmp_area_t *AAS_AllocTmpArea(void) +{ + tmp_area_t *tmparea; + + tmparea = (tmp_area_t *) GetClearedMemory(sizeof(tmp_area_t)); + tmparea->areanum = tmpaasworld.areanum++; + tmparea->l_prev = NULL; + tmparea->l_next = tmpaasworld.areas; + if (tmpaasworld.areas) tmpaasworld.areas->l_prev = tmparea; + tmpaasworld.areas = tmparea; + tmpaasworld.numareas++; + return tmparea; +} //end of the function AAS_AllocTmpArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeTmpArea(tmp_area_t *tmparea) +{ + if (tmparea->l_next) tmparea->l_next->l_prev = tmparea->l_prev; + if (tmparea->l_prev) tmparea->l_prev->l_next = tmparea->l_next; + else tmpaasworld.areas = tmparea->l_next; + if (tmparea->settings) FreeMemory(tmparea->settings); + FreeMemory(tmparea); + tmpaasworld.numareas--; +} //end of the function AAS_FreeTmpArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +tmp_node_t *AAS_AllocTmpNode(void) +{ + tmp_nodebuf_t *nodebuf; + + if (!tmpaasworld.nodebuffer || + tmpaasworld.nodebuffer->numnodes >= NODEBUF_SIZE) + { + nodebuf = (tmp_nodebuf_t *) GetClearedMemory(sizeof(tmp_nodebuf_t)); + nodebuf->next = tmpaasworld.nodebuffer; + nodebuf->numnodes = 0; + tmpaasworld.nodebuffer = nodebuf; + } //end if + tmpaasworld.numnodes++; + return &tmpaasworld.nodebuffer->nodes[tmpaasworld.nodebuffer->numnodes++]; +} //end of the function AAS_AllocTmpNode +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeTmpNode(tmp_node_t *tmpnode) +{ + tmpaasworld.numnodes--; +} //end of the function AAS_FreeTmpNode +//=========================================================================== +// returns true if the face is a gap from the given side +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_GapFace(tmp_face_t *tmpface, int side) +{ + vec3_t invgravity; + + //if the face is a solid or ground face it can't be a gap + if (tmpface->faceflags & (FACE_GROUND | FACE_SOLID)) return 0; + + VectorCopy(cfg.phys_gravitydirection, invgravity); + VectorInverse(invgravity); + + return (DotProduct(invgravity, mapplanes[tmpface->planenum ^ side].normal) > cfg.phys_maxsteepness); +} //end of the function AAS_GapFace +//=========================================================================== +// returns true if the face is a ground face +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_GroundFace(tmp_face_t *tmpface) +{ + vec3_t invgravity; + + //must be a solid face + if (!(tmpface->faceflags & FACE_SOLID)) return 0; + + VectorCopy(cfg.phys_gravitydirection, invgravity); + VectorInverse(invgravity); + + return (DotProduct(invgravity, mapplanes[tmpface->planenum].normal) > cfg.phys_maxsteepness); +} //end of the function AAS_GroundFace +//=========================================================================== +// adds the side of a face to an area +// +// side : 0 = front side +// 1 = back side +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_AddFaceSideToArea(tmp_face_t *tmpface, int side, tmp_area_t *tmparea) +{ + int tmpfaceside; + + if (side) + { + if (tmpface->backarea) Error("AAS_AddFaceSideToArea: already a back area\n"); + } //end if + else + { + if (tmpface->frontarea) Error("AAS_AddFaceSideToArea: already a front area\n"); + } //end else + + if (side) tmpface->backarea = tmparea; + else tmpface->frontarea = tmparea; + + if (tmparea->tmpfaces) + { + tmpfaceside = tmparea->tmpfaces->frontarea != tmparea; + tmparea->tmpfaces->prev[tmpfaceside] = tmpface; + } //end if + tmpface->next[side] = tmparea->tmpfaces; + tmpface->prev[side] = NULL; + tmparea->tmpfaces = tmpface; +} //end of the function AAS_AddFaceSideToArea +//=========================================================================== +// remove (a side of) a face from an area +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_RemoveFaceFromArea(tmp_face_t *tmpface, tmp_area_t *tmparea) +{ + int side, prevside, nextside; + + if (tmpface->frontarea != tmparea && + tmpface->backarea != tmparea) + { + Error("AAS_RemoveFaceFromArea: face not part of the area"); + } //end if + side = tmpface->frontarea != tmparea; + if (tmpface->prev[side]) + { + prevside = tmpface->prev[side]->frontarea != tmparea; + tmpface->prev[side]->next[prevside] = tmpface->next[side]; + } //end if + else + { + tmparea->tmpfaces = tmpface->next[side]; + } //end else + if (tmpface->next[side]) + { + nextside = tmpface->next[side]->frontarea != tmparea; + tmpface->next[side]->prev[nextside] = tmpface->prev[side]; + } //end if + //remove the area number from the face depending on the side + if (side) tmpface->backarea = NULL; + else tmpface->frontarea = NULL; + tmpface->prev[side] = NULL; + tmpface->next[side] = NULL; +} //end of the function AAS_RemoveFaceFromArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CheckArea(tmp_area_t *tmparea) +{ + int side; + tmp_face_t *face; + plane_t *plane; + vec3_t wcenter, acenter = {0, 0, 0}; + vec3_t normal; + float n, dist; + + if (tmparea->invalid) Log_Print("AAS_CheckArea: invalid area\n"); + for (n = 0, face = tmparea->tmpfaces; face; face = face->next[side]) + { + //side of the face the area is on + side = face->frontarea != tmparea; + WindingCenter(face->winding, wcenter); + VectorAdd(acenter, wcenter, acenter); + n++; + } //end for + n = 1 / n; + VectorScale(acenter, n, acenter); + for (face = tmparea->tmpfaces; face; face = face->next[side]) + { + //side of the face the area is on + side = face->frontarea != tmparea; + +#ifdef L_DEBUG + if (WindingError(face->winding)) + { + Log_Write("AAS_CheckArea: area %d face %d: %s\r\n", tmparea->areanum, + face->num, WindingErrorString()); + } //end if +#endif L_DEBUG + + plane = &mapplanes[face->planenum ^ side]; + + if (DotProduct(plane->normal, acenter) - plane->dist < 0) + { + Log_Print("AAS_CheckArea: area %d face %d is flipped\n", tmparea->areanum, face->num); + Log_Print("AAS_CheckArea: area %d center is %f %f %f\n", tmparea->areanum, acenter[0], acenter[1], acenter[2]); + } //end if + //check if the winding plane is the same as the face plane + WindingPlane(face->winding, normal, &dist); + plane = &mapplanes[face->planenum]; +#ifdef L_DEBUG + if (fabs(dist - plane->dist) > 0.4 || + fabs(normal[0] - plane->normal[0]) > 0.0001 || + fabs(normal[1] - plane->normal[1]) > 0.0001 || + fabs(normal[2] - plane->normal[2]) > 0.0001) + { + Log_Write("AAS_CheckArea: area %d face %d winding plane unequal to face plane\r\n", + tmparea->areanum, face->num); + } //end if +#endif L_DEBUG + } //end for +} //end of the function AAS_CheckArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CheckFaceWindingPlane(tmp_face_t *face) +{ + float dist, sign1, sign2; + vec3_t normal; + plane_t *plane; + winding_t *w; + + //check if the winding plane is the same as the face plane + WindingPlane(face->winding, normal, &dist); + plane = &mapplanes[face->planenum]; + // + sign1 = DotProduct(plane->normal, normal); + // + if (fabs(dist - plane->dist) > 0.4 || + fabs(normal[0] - plane->normal[0]) > 0.0001 || + fabs(normal[1] - plane->normal[1]) > 0.0001 || + fabs(normal[2] - plane->normal[2]) > 0.0001) + { + VectorInverse(normal); + dist = -dist; + if (fabs(dist - plane->dist) > 0.4 || + fabs(normal[0] - plane->normal[0]) > 0.0001 || + fabs(normal[1] - plane->normal[1]) > 0.0001 || + fabs(normal[2] - plane->normal[2]) > 0.0001) + { + Log_Write("AAS_CheckFaceWindingPlane: face %d winding plane unequal to face plane\r\n", + face->num); + // + sign2 = DotProduct(plane->normal, normal); + if ((sign1 < 0 && sign2 > 0) || + (sign1 > 0 && sign2 < 0)) + { + Log_Write("AAS_CheckFaceWindingPlane: face %d winding reversed\r\n", + face->num); + w = face->winding; + face->winding = ReverseWinding(w); + FreeWinding(w); + } //end if + } //end if + else + { + Log_Write("AAS_CheckFaceWindingPlane: face %d winding reversed\r\n", + face->num); + w = face->winding; + face->winding = ReverseWinding(w); + FreeWinding(w); + } //end else + } //end if +} //end of the function AAS_CheckFaceWindingPlane +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CheckAreaWindingPlanes(void) +{ + int side; + tmp_area_t *tmparea; + tmp_face_t *face; + + Log_Write("AAS_CheckAreaWindingPlanes:\r\n"); + for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next) + { + if (tmparea->invalid) continue; + for (face = tmparea->tmpfaces; face; face = face->next[side]) + { + side = face->frontarea != tmparea; + AAS_CheckFaceWindingPlane(face); + } //end for + } //end for +} //end of the function AAS_CheckAreaWindingPlanes +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FlipAreaFaces(tmp_area_t *tmparea) +{ + int side; + tmp_face_t *face; + plane_t *plane; + vec3_t wcenter, acenter = {0, 0, 0}; + //winding_t *w; + float n; + + for (n = 0, face = tmparea->tmpfaces; face; face = face->next[side]) + { + if (!face->frontarea) Error("face %d has no front area\n", face->num); + //side of the face the area is on + side = face->frontarea != tmparea; + WindingCenter(face->winding, wcenter); + VectorAdd(acenter, wcenter, acenter); + n++; + } //end for + n = 1 / n; + VectorScale(acenter, n, acenter); + for (face = tmparea->tmpfaces; face; face = face->next[side]) + { + //side of the face the area is on + side = face->frontarea != tmparea; + + plane = &mapplanes[face->planenum ^ side]; + + if (DotProduct(plane->normal, acenter) - plane->dist < 0) + { + Log_Print("area %d face %d flipped: front area %d, back area %d\n", tmparea->areanum, face->num, + face->frontarea ? face->frontarea->areanum : 0, + face->backarea ? face->backarea->areanum : 0); + /* + face->planenum = face->planenum ^ 1; + w = face->winding; + face->winding = ReverseWinding(w); + FreeWinding(w); + */ + } //end if +#ifdef L_DEBUG + { + float dist; + vec3_t normal; + + //check if the winding plane is the same as the face plane + WindingPlane(face->winding, normal, &dist); + plane = &mapplanes[face->planenum]; + if (fabs(dist - plane->dist) > 0.4 || + fabs(normal[0] - plane->normal[0]) > 0.0001 || + fabs(normal[1] - plane->normal[1]) > 0.0001 || + fabs(normal[2] - plane->normal[2]) > 0.0001) + { + Log_Write("area %d face %d winding plane unequal to face plane\r\n", + tmparea->areanum, face->num); + } //end if + } +#endif + } //end for +} //end of the function AAS_FlipAreaFaces +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_RemoveAreaFaceColinearPoints(void) +{ + int side; + tmp_face_t *face; + tmp_area_t *tmparea; + + //FIXME: loop over the faces instead of area->faces + for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next) + { + for (face = tmparea->tmpfaces; face; face = face->next[side]) + { + side = face->frontarea != tmparea; + RemoveColinearPoints(face->winding); +// RemoveEqualPoints(face->winding, 0.1); + } //end for + } //end for +} //end of the function AAS_RemoveAreaFaceColinearPoints +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_RemoveTinyFaces(void) +{ + int side, num; + tmp_face_t *face, *nextface; + tmp_area_t *tmparea; + + //FIXME: loop over the faces instead of area->faces + Log_Write("AAS_RemoveTinyFaces\r\n"); + num = 0; + for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next) + { + for (face = tmparea->tmpfaces; face; face = nextface) + { + side = face->frontarea != tmparea; + nextface = face->next[side]; + // + if (WindingArea(face->winding) < 1) + { + if (face->frontarea) AAS_RemoveFaceFromArea(face, face->frontarea); + if (face->backarea) AAS_RemoveFaceFromArea(face, face->backarea); + AAS_FreeTmpFace(face); + //Log_Write("area %d face %d is tiny\r\n", tmparea->areanum, face->num); + num++; + } //end if + } //end for + } //end for + Log_Write("%d tiny faces removed\r\n", num); +} //end of the function AAS_RemoveTinyFaces +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CreateAreaSettings(void) +{ + int i, flags, side, numgrounded, numladderareas, numliquidareas; + tmp_face_t *face; + tmp_area_t *tmparea; + + numgrounded = 0; + numladderareas = 0; + numliquidareas = 0; + Log_Write("AAS_CreateAreaSettings\r\n"); + i = 0; + qprintf("%6d areas provided with settings", i); + for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next) + { + //if the area is invalid there no need to create settings for it + if (tmparea->invalid) continue; + + tmparea->settings = (tmp_areasettings_t *) GetClearedMemory(sizeof(tmp_areasettings_t)); + tmparea->settings->contents = tmparea->contents; + tmparea->settings->modelnum = tmparea->modelnum; + flags = 0; + for (face = tmparea->tmpfaces; face; face = face->next[side]) + { + side = face->frontarea != tmparea; + flags |= face->faceflags; + } //end for + tmparea->settings->areaflags = 0; + if (flags & FACE_GROUND) + { + tmparea->settings->areaflags |= AREA_GROUNDED; + numgrounded++; + } //end if + if (flags & FACE_LADDER) + { + tmparea->settings->areaflags |= AREA_LADDER; + numladderareas++; + } //end if + if (tmparea->contents & (AREACONTENTS_WATER | + AREACONTENTS_SLIME | + AREACONTENTS_LAVA)) + { + tmparea->settings->areaflags |= AREA_LIQUID; + numliquidareas++; + } //end if + //presence type of the area + tmparea->settings->presencetype = tmparea->presencetype; + // + qprintf("\r%6d", ++i); + } //end for + qprintf("\n"); +#ifdef AASINFO + Log_Print("%6d grounded areas\n", numgrounded); + Log_Print("%6d ladder areas\n", numladderareas); + Log_Print("%6d liquid areas\n", numliquidareas); +#endif //AASINFO +} //end of the function AAS_CreateAreaSettings +//=========================================================================== +// create a tmp AAS area from a leaf node +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +tmp_node_t *AAS_CreateArea(node_t *node) +{ + int pside; + int areafaceflags; + portal_t *p; + tmp_face_t *tmpface; + tmp_area_t *tmparea; + tmp_node_t *tmpnode; + vec3_t up = {0, 0, 1}; + + //create an area from this leaf + tmparea = AAS_AllocTmpArea(); + tmparea->tmpfaces = NULL; + //clear the area face flags + areafaceflags = 0; + //make aas faces from the portals + for (p = node->portals; p; p = p->next[pside]) + { + pside = (p->nodes[1] == node); + //don't create faces from very small portals +// if (WindingArea(p->winding) < 1) continue; + //if there's already a face created for this portal + if (p->tmpface) + { + //add the back side of the face to the area + AAS_AddFaceSideToArea(p->tmpface, 1, tmparea); + } //end if + else + { + tmpface = AAS_AllocTmpFace(); + //set the face pointer at the portal so we can see from + //the portal there's a face created for it + p->tmpface = tmpface; + //FIXME: test this change + //tmpface->planenum = (p->planenum & ~1) | pside; + tmpface->planenum = p->planenum ^ pside; + if (pside) tmpface->winding = ReverseWinding(p->winding); + else tmpface->winding = CopyWinding(p->winding); +#ifdef L_DEBUG + // + AAS_CheckFaceWindingPlane(tmpface); +#endif //L_DEBUG + //if there's solid at the other side of the portal + if (p->nodes[!pside]->contents & (CONTENTS_SOLID | CONTENTS_PLAYERCLIP)) + { + tmpface->faceflags |= FACE_SOLID; + } //end if + //else there is no solid at the other side and if there + //is a liquid at this side + else if (node->contents & (CONTENTS_WATER|CONTENTS_SLIME|CONTENTS_LAVA)) + { + tmpface->faceflags |= FACE_LIQUID; + //if there's no liquid at the other side + if (!(p->nodes[!pside]->contents & (CONTENTS_WATER|CONTENTS_SLIME|CONTENTS_LAVA))) + { + tmpface->faceflags |= FACE_LIQUIDSURFACE; + } //end if + } //end else + //if there's ladder contents at other side of the portal + if ((p->nodes[pside]->contents & CONTENTS_LADDER) || + (p->nodes[!pside]->contents & CONTENTS_LADDER)) + { + + //NOTE: doesn't have to be solid at the other side because + // when standing one can use a crouch area (which is not solid) + // as a ladder + // imagine a ladder one can walk underthrough, + // under the ladder against the ladder is a crouch area + // the (vertical) sides of this crouch area area also used as + // ladder sides when standing (not crouched) + tmpface->faceflags |= FACE_LADDER; + } //end if + //if it is possible to stand on the face + if (AAS_GroundFace(tmpface)) + { + tmpface->faceflags |= FACE_GROUND; + } //end if + // + areafaceflags |= tmpface->faceflags; + //no aas face number yet (zero is a dummy in the aasworld faces) + tmpface->aasfacenum = 0; + //add the front side of the face to the area + AAS_AddFaceSideToArea(tmpface, 0, tmparea); + } //end else + } //end for + qprintf("\r%6d", tmparea->areanum); + //presence type in the area + tmparea->presencetype = ~node->expansionbboxes & cfg.allpresencetypes; + // + tmparea->contents = 0; + if (node->contents & CONTENTS_CLUSTERPORTAL) tmparea->contents |= AREACONTENTS_CLUSTERPORTAL; + if (node->contents & CONTENTS_MOVER) tmparea->contents |= AREACONTENTS_MOVER; + if (node->contents & CONTENTS_TELEPORTER) tmparea->contents |= AREACONTENTS_TELEPORTER; + if (node->contents & CONTENTS_JUMPPAD) tmparea->contents |= AREACONTENTS_JUMPPAD; + if (node->contents & CONTENTS_DONOTENTER) tmparea->contents |= AREACONTENTS_DONOTENTER; + if (node->contents & CONTENTS_WATER) tmparea->contents |= AREACONTENTS_WATER; + if (node->contents & CONTENTS_LAVA) tmparea->contents |= AREACONTENTS_LAVA; + if (node->contents & CONTENTS_SLIME) tmparea->contents |= AREACONTENTS_SLIME; + if (node->contents & CONTENTS_NOTTEAM1) tmparea->contents |= AREACONTENTS_NOTTEAM1; + if (node->contents & CONTENTS_NOTTEAM2) tmparea->contents |= AREACONTENTS_NOTTEAM2; + + //store the bsp model that's inside this node + tmparea->modelnum = node->modelnum; + //sorta check for flipped area faces (remove??) + AAS_FlipAreaFaces(tmparea); + //check if the area is ok (remove??) + AAS_CheckArea(tmparea); + // + tmpnode = AAS_AllocTmpNode(); + tmpnode->planenum = 0; + tmpnode->children[0] = 0; + tmpnode->children[1] = 0; + tmpnode->tmparea = tmparea; + // + return tmpnode; +} //end of the function AAS_CreateArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +tmp_node_t *AAS_CreateAreas_r(node_t *node) +{ + tmp_node_t *tmpnode; + + //recurse down to leafs + if (node->planenum != PLANENUM_LEAF) + { + //the first tmp node is a dummy + tmpnode = AAS_AllocTmpNode(); + tmpnode->planenum = node->planenum; + tmpnode->children[0] = AAS_CreateAreas_r(node->children[0]); + tmpnode->children[1] = AAS_CreateAreas_r(node->children[1]); + return tmpnode; + } //end if + //areas won't be created for solid leafs + if (node->contents & CONTENTS_SOLID) + { + //just return zero for a solid leaf (in tmp AAS NULL is a solid leaf) + return NULL; + } //end if + + return AAS_CreateArea(node); +} //end of the function AAS_CreateAreas_r +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CreateAreas(node_t *node) +{ + Log_Write("AAS_CreateAreas\r\n"); + qprintf("%6d areas created", 0); + tmpaasworld.nodes = AAS_CreateAreas_r(node); + qprintf("\n"); + Log_Write("%6d areas created\r\n", tmpaasworld.numareas); +} //end of the function AAS_CreateAreas +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_PrintNumGroundFaces(void) +{ + tmp_face_t *tmpface; + int numgroundfaces = 0; + + for (tmpface = tmpaasworld.faces; tmpface; tmpface = tmpface->l_next) + { + if (tmpface->faceflags & FACE_GROUND) + { + numgroundfaces++; + } //end if + } //end for + qprintf("%6d ground faces\n", numgroundfaces); +} //end of the function AAS_PrintNumGroundFaces +//=========================================================================== +// checks the number of shared faces between the given two areas +// since areas are convex they should only have ONE shared face +// however due to crappy face merging there are sometimes several +// shared faces +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CheckAreaSharedFaces(tmp_area_t *tmparea1, tmp_area_t *tmparea2) +{ + int numsharedfaces, side; + tmp_face_t *face1, *sharedface; + + if (tmparea1->invalid || tmparea2->invalid) return; + + sharedface = NULL; + numsharedfaces = 0; + for (face1 = tmparea1->tmpfaces; face1; face1 = face1->next[side]) + { + side = face1->frontarea != tmparea1; + if (face1->backarea == tmparea2 || face1->frontarea == tmparea2) + { + sharedface = face1; + numsharedfaces++; + } //end if + } //end if + if (!sharedface) return; + //the areas should only have one shared face + if (numsharedfaces > 1) + { + Log_Write("---- tmp area %d and %d have %d shared faces\r\n", + tmparea1->areanum, tmparea2->areanum, numsharedfaces); + for (face1 = tmparea1->tmpfaces; face1; face1 = face1->next[side]) + { + side = face1->frontarea != tmparea1; + if (face1->backarea == tmparea2 || face1->frontarea == tmparea2) + { + Log_Write("face %d, planenum = %d, face->frontarea = %d face->backarea = %d\r\n", + face1->num, face1->planenum, face1->frontarea->areanum, face1->backarea->areanum); + } //end if + } //end if + } //end if +} //end of the function AAS_CheckAreaSharedFaces +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CheckSharedFaces(void) +{ + tmp_area_t *tmparea1, *tmparea2; + + for (tmparea1 = tmpaasworld.areas; tmparea1; tmparea1 = tmparea1->l_next) + { + for (tmparea2 = tmpaasworld.areas; tmparea2; tmparea2 = tmparea2->l_next) + { + if (tmparea1 == tmparea2) continue; + AAS_CheckAreaSharedFaces(tmparea1, tmparea2); + } //end for + } //end for +} //end of the function AAS_CheckSharedFaces +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FlipFace(tmp_face_t *face) +{ + tmp_area_t *frontarea, *backarea; + winding_t *w; + + frontarea = face->frontarea; + backarea = face->backarea; + //must have an area at both sides before flipping is allowed + if (!frontarea || !backarea) return; + //flip the face winding + w = face->winding; + face->winding = ReverseWinding(w); + FreeWinding(w); + //flip the face plane + face->planenum ^= 1; + //flip the face areas + AAS_RemoveFaceFromArea(face, frontarea); + AAS_RemoveFaceFromArea(face, backarea); + AAS_AddFaceSideToArea(face, 1, frontarea); + AAS_AddFaceSideToArea(face, 0, backarea); +} //end of the function AAS_FlipFace +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +/* +void AAS_FlipAreaSharedFaces(tmp_area_t *tmparea1, tmp_area_t *tmparea2) +{ + int numsharedfaces, side, area1facing, area2facing; + tmp_face_t *face1, *sharedface; + + if (tmparea1->invalid || tmparea2->invalid) return; + + sharedface = NULL; + numsharedfaces = 0; + area1facing = 0; //number of shared faces facing towards area 1 + area2facing = 0; //number of shared faces facing towards area 2 + for (face1 = tmparea1->tmpfaces; face1; face1 = face1->next[side]) + { + side = face1->frontarea != tmparea1; + if (face1->backarea == tmparea2 || face1->frontarea == tmparea2) + { + sharedface = face1; + numsharedfaces++; + if (face1->frontarea == tmparea1) area1facing++; + else area2facing++; + } //end if + } //end if + if (!sharedface) return; + //if there's only one shared face + if (numsharedfaces <= 1) return; + //if all the shared faces are facing to the same area + if (numsharedfaces == area1facing || numsharedfaces == area2facing) return; + // + do + { + for (face1 = tmparea1->tmpfaces; face1; face1 = face1->next[side]) + { + side = face1->frontarea != tmparea1; + if (face1->backarea == tmparea2 || face1->frontarea == tmparea2) + { + if (face1->frontarea != tmparea1) + { + AAS_FlipFace(face1); + break; + } //end if + } //end if + } //end for + } while(face1); +} //end of the function AAS_FlipAreaSharedFaces +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FlipSharedFaces(void) +{ + int i; + tmp_area_t *tmparea1, *tmparea2; + + i = 0; + qprintf("%6d areas checked for shared face flipping", i); + for (tmparea1 = tmpaasworld.areas; tmparea1; tmparea1 = tmparea1->l_next) + { + if (tmparea1->invalid) continue; + for (tmparea2 = tmpaasworld.areas; tmparea2; tmparea2 = tmparea2->l_next) + { + if (tmparea2->invalid) continue; + if (tmparea1 == tmparea2) continue; + AAS_FlipAreaSharedFaces(tmparea1, tmparea2); + } //end for + qprintf("\r%6d", ++i); + } //end for + Log_Print("\r%6d areas checked for shared face flipping\n", i); +} //end of the function AAS_FlipSharedFaces +*/ +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FlipSharedFaces(void) +{ + int i, side1, side2; + tmp_area_t *tmparea1; + tmp_face_t *face1, *face2; + + i = 0; + qprintf("%6d areas checked for shared face flipping", i); + for (tmparea1 = tmpaasworld.areas; tmparea1; tmparea1 = tmparea1->l_next) + { + if (tmparea1->invalid) continue; + for (face1 = tmparea1->tmpfaces; face1; face1 = face1->next[side1]) + { + side1 = face1->frontarea != tmparea1; + if (!face1->frontarea || !face1->backarea) continue; + // + for (face2 = face1->next[side1]; face2; face2 = face2->next[side2]) + { + side2 = face2->frontarea != tmparea1; + if (!face2->frontarea || !face2->backarea) continue; + // + if (face1->frontarea == face2->backarea && + face1->backarea == face2->frontarea) + { + AAS_FlipFace(face2); + } //end if + //recheck side + side2 = face2->frontarea != tmparea1; + } //end for + } //end for + qprintf("\r%6d", ++i); + } //end for + qprintf("\n"); + Log_Write("%6d areas checked for shared face flipping\r\n", i); +} //end of the function AAS_FlipSharedFaces +//=========================================================================== +// creates an .AAS file with the given name +// a MAP should be loaded before calling this +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_Create(char *aasfile) +{ + entity_t *e; + tree_t *tree; + double start_time; + + //for a possible leak file + strcpy(source, aasfile); + StripExtension(source); + //the time started + start_time = I_FloatTime(); + //set the default number of threads (depends on number of processors) + ThreadSetDefault(); + //set the global entity number to the world model + entity_num = 0; + //the world entity + e = &entities[entity_num]; + //process the whole world + tree = ProcessWorldBrushes(e->firstbrush, e->firstbrush + e->numbrushes); + //if the conversion is cancelled + if (cancelconversion) + { + Tree_Free(tree); + return; + } //end if + //display BSP tree creation time + Log_Print("BSP tree created in %5.0f seconds\n", I_FloatTime() - start_time); + //prune the bsp tree + Tree_PruneNodes(tree->headnode); + //if the conversion is cancelled + if (cancelconversion) + { + Tree_Free(tree); + return; + } //end if + //create the tree portals + MakeTreePortals(tree); + //if the conversion is cancelled + if (cancelconversion) + { + Tree_Free(tree); + return; + } //end if + //Marks all nodes that can be reached by entites + if (FloodEntities(tree)) + { + //fill out nodes that can't be reached + FillOutside(tree->headnode); + } //end if + else + { + LeakFile(tree); + Error("**** leaked ****\n"); + return; + } //end else + //create AAS from the BSP tree + //========================================== + //initialize tmp aas + AAS_InitTmpAAS(); + //create the convex areas from the leaves + AAS_CreateAreas(tree->headnode); + //free the BSP tree because it isn't used anymore + if (freetree) Tree_Free(tree); + //try to merge area faces + AAS_MergeAreaFaces(); + //do gravitational subdivision + AAS_GravitationalSubdivision(); + //merge faces if possible + AAS_MergeAreaFaces(); + AAS_RemoveAreaFaceColinearPoints(); + //merge areas if possible + AAS_MergeAreas(); + //NOTE: prune nodes directly after area merging + AAS_PruneNodes(); + //flip shared faces so they are all facing to the same area + AAS_FlipSharedFaces(); + AAS_RemoveAreaFaceColinearPoints(); + //merge faces if possible + AAS_MergeAreaFaces(); + //merge area faces in the same plane + AAS_MergeAreaPlaneFaces(); + //do ladder subdivision + AAS_LadderSubdivision(); + //FIXME: melting is buggy + AAS_MeltAreaFaceWindings(); + //remove tiny faces + AAS_RemoveTinyFaces(); + //create area settings + AAS_CreateAreaSettings(); + //check if the winding plane is equal to the face plane + //AAS_CheckAreaWindingPlanes(); + // + //AAS_CheckSharedFaces(); + //========================================== + //if the conversion is cancelled + if (cancelconversion) + { + Tree_Free(tree); + AAS_FreeTmpAAS(); + return; + } //end if + //store the created AAS stuff in the AAS file format and write the file + AAS_StoreFile(aasfile); + //free the temporary AAS memory + AAS_FreeTmpAAS(); + //display creation time + Log_Print("\nAAS created in %5.0f seconds\n", I_FloatTime() - start_time); +} //end of the function AAS_Create -- cgit v1.2.3