mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-11-30 16:11:11 +00:00
999 lines
20 KiB
C++
999 lines
20 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
|
|
|
|
Doom 3 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#include "../../../idlib/precompiled.h"
|
|
#pragma hdrstop
|
|
|
|
#include "dmap.h"
|
|
|
|
|
|
interAreaPortal_t interAreaPortals[MAX_INTER_AREA_PORTALS];
|
|
int numInterAreaPortals;
|
|
|
|
|
|
int c_active_portals;
|
|
int c_peak_portals;
|
|
|
|
/*
|
|
===========
|
|
AllocPortal
|
|
===========
|
|
*/
|
|
uPortal_t *AllocPortal (void)
|
|
{
|
|
uPortal_t *p;
|
|
|
|
c_active_portals++;
|
|
if (c_active_portals > c_peak_portals)
|
|
c_peak_portals = c_active_portals;
|
|
|
|
p = (uPortal_t *)Mem_Alloc (sizeof(uPortal_t ));
|
|
memset (p, 0, sizeof(uPortal_t ));
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
void FreePortal (uPortal_t *p)
|
|
{
|
|
if (p->winding)
|
|
delete p->winding;
|
|
c_active_portals--;
|
|
Mem_Free (p);
|
|
}
|
|
|
|
//==============================================================
|
|
|
|
/*
|
|
=============
|
|
Portal_Passable
|
|
|
|
Returns true if the portal has non-opaque leafs on both sides
|
|
=============
|
|
*/
|
|
static bool Portal_Passable( uPortal_t *p ) {
|
|
if (!p->onnode) {
|
|
return false; // to global outsideleaf
|
|
}
|
|
|
|
if (p->nodes[0]->planenum != PLANENUM_LEAF
|
|
|| p->nodes[1]->planenum != PLANENUM_LEAF) {
|
|
common->Error( "Portal_EntityFlood: not a leaf");
|
|
}
|
|
|
|
if ( !p->nodes[0]->opaque && !p->nodes[1]->opaque ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//=============================================================================
|
|
|
|
int c_tinyportals;
|
|
|
|
/*
|
|
=============
|
|
AddPortalToNodes
|
|
=============
|
|
*/
|
|
void AddPortalToNodes (uPortal_t *p, node_t *front, node_t *back) {
|
|
if (p->nodes[0] || p->nodes[1]) {
|
|
common->Error( "AddPortalToNode: allready included");
|
|
}
|
|
|
|
p->nodes[0] = front;
|
|
p->next[0] = front->portals;
|
|
front->portals = p;
|
|
|
|
p->nodes[1] = back;
|
|
p->next[1] = back->portals;
|
|
back->portals = p;
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
RemovePortalFromNode
|
|
=============
|
|
*/
|
|
void RemovePortalFromNode (uPortal_t *portal, node_t *l)
|
|
{
|
|
uPortal_t **pp, *t;
|
|
|
|
// remove reference to the current portal
|
|
pp = &l->portals;
|
|
while (1)
|
|
{
|
|
t = *pp;
|
|
if (!t)
|
|
common->Error( "RemovePortalFromNode: portal not in leaf");
|
|
|
|
if ( t == portal )
|
|
break;
|
|
|
|
if (t->nodes[0] == l)
|
|
pp = &t->next[0];
|
|
else if (t->nodes[1] == l)
|
|
pp = &t->next[1];
|
|
else
|
|
common->Error( "RemovePortalFromNode: portal not bounding leaf");
|
|
}
|
|
|
|
if ( portal->nodes[0] == l ) {
|
|
*pp = portal->next[0];
|
|
portal->nodes[0] = NULL;
|
|
} else if ( portal->nodes[1] == l ) {
|
|
*pp = portal->next[1];
|
|
portal->nodes[1] = NULL;
|
|
} else {
|
|
common->Error( "RemovePortalFromNode: mislinked" );
|
|
}
|
|
}
|
|
|
|
//============================================================================
|
|
|
|
void PrintPortal (uPortal_t *p)
|
|
{
|
|
int i;
|
|
idWinding *w;
|
|
|
|
w = p->winding;
|
|
for ( i = 0; i < w->GetNumPoints(); i++ )
|
|
common->Printf("(%5.0f,%5.0f,%5.0f)\n",(*w)[i][0], (*w)[i][1], (*w)[i][2]);
|
|
}
|
|
|
|
/*
|
|
================
|
|
MakeHeadnodePortals
|
|
|
|
The created portals will face the global outside_node
|
|
================
|
|
*/
|
|
#define SIDESPACE 8
|
|
static void MakeHeadnodePortals( tree_t *tree ) {
|
|
idBounds bounds;
|
|
int i, j, n;
|
|
uPortal_t *p, *portals[6];
|
|
idPlane bplanes[6], *pl;
|
|
node_t *node;
|
|
|
|
node = tree->headnode;
|
|
|
|
tree->outside_node.planenum = PLANENUM_LEAF;
|
|
tree->outside_node.brushlist = NULL;
|
|
tree->outside_node.portals = NULL;
|
|
tree->outside_node.opaque = false;
|
|
|
|
// if no nodes, don't go any farther
|
|
if ( node->planenum == PLANENUM_LEAF ) {
|
|
return;
|
|
}
|
|
|
|
// pad with some space so there will never be null volume leafs
|
|
for (i=0 ; i<3 ; i++) {
|
|
bounds[0][i] = tree->bounds[0][i] - SIDESPACE;
|
|
bounds[1][i] = tree->bounds[1][i] + SIDESPACE;
|
|
if ( bounds[0][i] >= bounds[1][i] ) {
|
|
common->Error( "Backwards tree volume" );
|
|
}
|
|
}
|
|
|
|
for (i=0 ; i<3 ; i++) {
|
|
for (j=0 ; j<2 ; j++) {
|
|
n = j*3 + i;
|
|
|
|
p = AllocPortal ();
|
|
portals[n] = p;
|
|
|
|
pl = &bplanes[n];
|
|
memset (pl, 0, sizeof(*pl));
|
|
if (j) {
|
|
(*pl)[i] = -1;
|
|
(*pl)[3] = bounds[j][i];
|
|
} else {
|
|
(*pl)[i] = 1;
|
|
(*pl)[3] = -bounds[j][i];
|
|
}
|
|
p->plane = *pl;
|
|
p->winding = new idWinding( *pl );
|
|
AddPortalToNodes (p, node, &tree->outside_node);
|
|
}
|
|
}
|
|
|
|
// clip the basewindings by all the other planes
|
|
for (i=0 ; i<6 ; i++) {
|
|
for (j=0 ; j<6 ; j++) {
|
|
if (j == i) {
|
|
continue;
|
|
}
|
|
portals[i]->winding = portals[i]->winding->Clip( bplanes[j], ON_EPSILON );
|
|
}
|
|
}
|
|
}
|
|
|
|
//===================================================
|
|
|
|
|
|
/*
|
|
================
|
|
BaseWindingForNode
|
|
================
|
|
*/
|
|
#define BASE_WINDING_EPSILON 0.001f
|
|
#define SPLIT_WINDING_EPSILON 0.001f
|
|
|
|
idWinding *BaseWindingForNode (node_t *node) {
|
|
idWinding *w;
|
|
node_t *n;
|
|
|
|
w = new idWinding( dmapGlobals.mapPlanes[node->planenum] );
|
|
|
|
// clip by all the parents
|
|
for ( n = node->parent ; n && w ; ) {
|
|
idPlane &plane = dmapGlobals.mapPlanes[n->planenum];
|
|
|
|
if ( n->children[0] == node ) {
|
|
// take front
|
|
w = w->Clip( plane, BASE_WINDING_EPSILON );
|
|
} else {
|
|
// take back
|
|
idPlane back = -plane;
|
|
w = w->Clip( back, BASE_WINDING_EPSILON );
|
|
}
|
|
node = n;
|
|
n = n->parent;
|
|
}
|
|
|
|
return w;
|
|
}
|
|
|
|
//============================================================
|
|
|
|
/*
|
|
==================
|
|
MakeNodePortal
|
|
|
|
create the new portal by taking the full plane winding for the cutting plane
|
|
and clipping it by all of parents of this node
|
|
==================
|
|
*/
|
|
static void MakeNodePortal( node_t *node ) {
|
|
uPortal_t *new_portal, *p;
|
|
idWinding *w;
|
|
idVec3 normal;
|
|
int side;
|
|
|
|
w = BaseWindingForNode (node);
|
|
|
|
// clip the portal by all the other portals in the node
|
|
for (p = node->portals ; p && w; p = p->next[side])
|
|
{
|
|
idPlane plane;
|
|
|
|
if (p->nodes[0] == node)
|
|
{
|
|
side = 0;
|
|
plane = p->plane;
|
|
}
|
|
else if (p->nodes[1] == node)
|
|
{
|
|
side = 1;
|
|
plane = -p->plane;
|
|
}
|
|
else {
|
|
common->Error( "CutNodePortals_r: mislinked portal");
|
|
side = 0; // quiet a compiler warning
|
|
}
|
|
|
|
w = w->Clip( plane, CLIP_EPSILON );
|
|
}
|
|
|
|
if (!w)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if ( w->IsTiny() )
|
|
{
|
|
c_tinyportals++;
|
|
delete w;
|
|
return;
|
|
}
|
|
|
|
|
|
new_portal = AllocPortal ();
|
|
new_portal->plane = dmapGlobals.mapPlanes[node->planenum];
|
|
new_portal->onnode = node;
|
|
new_portal->winding = w;
|
|
AddPortalToNodes (new_portal, node->children[0], node->children[1]);
|
|
}
|
|
|
|
|
|
/*
|
|
==============
|
|
SplitNodePortals
|
|
|
|
Move or split the portals that bound node so that the node's
|
|
children have portals instead of node.
|
|
==============
|
|
*/
|
|
static void SplitNodePortals( node_t *node ) {
|
|
uPortal_t *p, *next_portal, *new_portal;
|
|
node_t *f, *b, *other_node;
|
|
int side;
|
|
idPlane *plane;
|
|
idWinding *frontwinding, *backwinding;
|
|
|
|
plane = &dmapGlobals.mapPlanes[node->planenum];
|
|
f = node->children[0];
|
|
b = node->children[1];
|
|
|
|
for ( p = node->portals ; p ; p = next_portal ) {
|
|
if (p->nodes[0] == node ) {
|
|
side = 0;
|
|
} else if ( p->nodes[1] == node ) {
|
|
side = 1;
|
|
} else {
|
|
common->Error( "SplitNodePortals: mislinked portal" );
|
|
side = 0; // quiet a compiler warning
|
|
}
|
|
next_portal = p->next[side];
|
|
|
|
other_node = p->nodes[!side];
|
|
RemovePortalFromNode (p, p->nodes[0]);
|
|
RemovePortalFromNode (p, p->nodes[1]);
|
|
|
|
//
|
|
// cut the portal into two portals, one on each side of the cut plane
|
|
//
|
|
p->winding->Split( *plane, SPLIT_WINDING_EPSILON, &frontwinding, &backwinding);
|
|
|
|
if ( frontwinding && frontwinding->IsTiny() )
|
|
{
|
|
delete frontwinding;
|
|
frontwinding = NULL;
|
|
c_tinyportals++;
|
|
}
|
|
|
|
if ( backwinding && backwinding->IsTiny() )
|
|
{
|
|
delete backwinding;
|
|
backwinding = NULL;
|
|
c_tinyportals++;
|
|
}
|
|
|
|
if ( !frontwinding && !backwinding )
|
|
{ // tiny windings on both sides
|
|
continue;
|
|
}
|
|
|
|
if (!frontwinding)
|
|
{
|
|
delete backwinding;
|
|
if (side == 0)
|
|
AddPortalToNodes (p, b, other_node);
|
|
else
|
|
AddPortalToNodes (p, other_node, b);
|
|
continue;
|
|
}
|
|
if (!backwinding)
|
|
{
|
|
delete frontwinding;
|
|
if (side == 0)
|
|
AddPortalToNodes (p, f, other_node);
|
|
else
|
|
AddPortalToNodes (p, other_node, f);
|
|
continue;
|
|
}
|
|
|
|
// the winding is split
|
|
new_portal = AllocPortal ();
|
|
*new_portal = *p;
|
|
new_portal->winding = backwinding;
|
|
delete p->winding;
|
|
p->winding = frontwinding;
|
|
|
|
if (side == 0)
|
|
{
|
|
AddPortalToNodes (p, f, other_node);
|
|
AddPortalToNodes (new_portal, b, other_node);
|
|
}
|
|
else
|
|
{
|
|
AddPortalToNodes (p, other_node, f);
|
|
AddPortalToNodes (new_portal, other_node, b);
|
|
}
|
|
}
|
|
|
|
node->portals = NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
CalcNodeBounds
|
|
================
|
|
*/
|
|
void CalcNodeBounds (node_t *node)
|
|
{
|
|
uPortal_t *p;
|
|
int s;
|
|
int i;
|
|
|
|
// calc mins/maxs for both leafs and nodes
|
|
node->bounds.Clear();
|
|
for (p = node->portals ; p ; p = p->next[s]) {
|
|
s = (p->nodes[1] == node);
|
|
for ( i = 0; i < p->winding->GetNumPoints(); i++ ) {
|
|
node->bounds.AddPoint( (*p->winding)[i].ToVec3() );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
MakeTreePortals_r
|
|
==================
|
|
*/
|
|
void MakeTreePortals_r (node_t *node)
|
|
{
|
|
int i;
|
|
|
|
CalcNodeBounds( node );
|
|
|
|
if ( node->bounds[0][0] >= node->bounds[1][0]) {
|
|
common->Warning( "node without a volume" );
|
|
}
|
|
|
|
for ( i = 0; i < 3; i++ ) {
|
|
if ( node->bounds[0][i] < MIN_WORLD_COORD || node->bounds[1][i] > MAX_WORLD_COORD ) {
|
|
common->Warning( "node with unbounded volume");
|
|
break;
|
|
}
|
|
}
|
|
if ( node->planenum == PLANENUM_LEAF ) {
|
|
return;
|
|
}
|
|
|
|
MakeNodePortal (node);
|
|
SplitNodePortals (node);
|
|
|
|
MakeTreePortals_r (node->children[0]);
|
|
MakeTreePortals_r (node->children[1]);
|
|
}
|
|
|
|
/*
|
|
==================
|
|
MakeTreePortals
|
|
==================
|
|
*/
|
|
void MakeTreePortals (tree_t *tree)
|
|
{
|
|
common->Printf( "----- MakeTreePortals -----\n");
|
|
MakeHeadnodePortals (tree);
|
|
MakeTreePortals_r (tree->headnode);
|
|
}
|
|
|
|
/*
|
|
=========================================================
|
|
|
|
FLOOD ENTITIES
|
|
|
|
=========================================================
|
|
*/
|
|
|
|
int c_floodedleafs;
|
|
|
|
/*
|
|
=============
|
|
FloodPortals_r
|
|
=============
|
|
*/
|
|
void FloodPortals_r (node_t *node, int dist) {
|
|
uPortal_t *p;
|
|
int s;
|
|
|
|
if ( node->occupied ) {
|
|
return;
|
|
}
|
|
|
|
if ( node->opaque ) {
|
|
return;
|
|
}
|
|
|
|
c_floodedleafs++;
|
|
node->occupied = dist;
|
|
|
|
for (p=node->portals ; p ; p = p->next[s]) {
|
|
s = (p->nodes[1] == node);
|
|
FloodPortals_r (p->nodes[!s], dist+1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============
|
|
PlaceOccupant
|
|
=============
|
|
*/
|
|
bool PlaceOccupant( node_t *headnode, idVec3 origin, uEntity_t *occupant ) {
|
|
node_t *node;
|
|
float d;
|
|
idPlane *plane;
|
|
|
|
// find the leaf to start in
|
|
node = headnode;
|
|
while ( node->planenum != PLANENUM_LEAF ) {
|
|
plane = &dmapGlobals.mapPlanes[node->planenum];
|
|
d = plane->Distance( origin );
|
|
if ( d >= 0.0f ) {
|
|
node = node->children[0];
|
|
} else {
|
|
node = node->children[1];
|
|
}
|
|
}
|
|
|
|
if ( node->opaque ) {
|
|
return false;
|
|
}
|
|
node->occupant = occupant;
|
|
|
|
FloodPortals_r (node, 1);
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
FloodEntities
|
|
|
|
Marks all nodes that can be reached by entites
|
|
=============
|
|
*/
|
|
bool FloodEntities( tree_t *tree ) {
|
|
int i;
|
|
idVec3 origin;
|
|
const char *cl;
|
|
bool inside;
|
|
node_t *headnode;
|
|
|
|
headnode = tree->headnode;
|
|
common->Printf ("--- FloodEntities ---\n");
|
|
inside = false;
|
|
tree->outside_node.occupied = 0;
|
|
|
|
c_floodedleafs = 0;
|
|
bool errorShown = false;
|
|
for (i=1 ; i<dmapGlobals.num_entities ; i++) {
|
|
idMapEntity *mapEnt;
|
|
|
|
mapEnt = dmapGlobals.uEntities[i].mapEntity;
|
|
if ( !mapEnt->epairs.GetVector( "origin", "", origin) ) {
|
|
continue;
|
|
}
|
|
|
|
// any entity can have "noFlood" set to skip it
|
|
if ( mapEnt->epairs.GetString( "noFlood", "", &cl ) ) {
|
|
continue;
|
|
}
|
|
|
|
mapEnt->epairs.GetString( "classname", "", &cl );
|
|
|
|
if ( !strcmp( cl, "light" ) ) {
|
|
const char *v;
|
|
|
|
// don't place lights that have a light_start field, because they can still
|
|
// be valid if their origin is outside the world
|
|
mapEnt->epairs.GetString( "light_start", "", &v);
|
|
if ( v[0] ) {
|
|
continue;
|
|
}
|
|
|
|
// don't place fog lights, because they often
|
|
// have origins outside the light
|
|
mapEnt->epairs.GetString( "texture", "", &v);
|
|
if ( v[0] ) {
|
|
const idMaterial *mat = declManager->FindMaterial( v );
|
|
if ( mat->IsFogLight() ) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (PlaceOccupant (headnode, origin, &dmapGlobals.uEntities[i])) {
|
|
inside = true;
|
|
}
|
|
|
|
if (tree->outside_node.occupied && !errorShown) {
|
|
errorShown = true;
|
|
common->Printf("Leak on entity # %d\n", i);
|
|
const char *p;
|
|
|
|
mapEnt->epairs.GetString( "classname", "", &p);
|
|
common->Printf("Entity classname was: %s\n", p);
|
|
mapEnt->epairs.GetString( "name", "", &p);
|
|
common->Printf("Entity name was: %s\n", p);
|
|
idVec3 origin;
|
|
if ( mapEnt->epairs.GetVector( "origin", "", origin)) {
|
|
common->Printf("Entity origin is: %f %f %f\n\n\n", origin.x, origin.y, origin.z);
|
|
}
|
|
}
|
|
}
|
|
|
|
common->Printf("%5i flooded leafs\n", c_floodedleafs );
|
|
|
|
if (!inside)
|
|
{
|
|
common->Printf ("no entities in open -- no filling\n");
|
|
}
|
|
else if (tree->outside_node.occupied)
|
|
{
|
|
common->Printf ("entity reached from outside -- no filling\n");
|
|
}
|
|
|
|
return (bool)(inside && !tree->outside_node.occupied);
|
|
}
|
|
|
|
/*
|
|
=========================================================
|
|
|
|
FLOOD AREAS
|
|
|
|
=========================================================
|
|
*/
|
|
|
|
static int c_areas;
|
|
static int c_areaFloods;
|
|
|
|
/*
|
|
=================
|
|
FindSideForPortal
|
|
=================
|
|
*/
|
|
static side_t *FindSideForPortal( uPortal_t *p ) {
|
|
int i, j, k;
|
|
node_t *node;
|
|
uBrush_t *b, *orig;
|
|
side_t *s, *s2;
|
|
|
|
// scan both bordering nodes brush lists for a portal brush
|
|
// that shares the plane
|
|
for ( i = 0 ; i < 2 ; i++ ) {
|
|
node = p->nodes[i];
|
|
for ( b = node->brushlist ; b ; b = b->next ) {
|
|
if ( !( b->contents & CONTENTS_AREAPORTAL ) ) {
|
|
continue;
|
|
}
|
|
orig = b->original;
|
|
for ( j = 0 ; j < orig->numsides ; j++ ) {
|
|
s = orig->sides + j;
|
|
if ( !s->visibleHull ) {
|
|
continue;
|
|
}
|
|
if ( !( s->material->GetContentFlags() & CONTENTS_AREAPORTAL ) ) {
|
|
continue;
|
|
}
|
|
if ( ( s->planenum & ~1 ) != ( p->onnode->planenum & ~1 ) ) {
|
|
continue;
|
|
}
|
|
// remove the visible hull from any other portal sides of this portal brush
|
|
for ( k = 0; k < orig->numsides; k++ ) {
|
|
if ( k == j ) {
|
|
continue;
|
|
}
|
|
s2 = orig->sides + k;
|
|
if ( s2->visibleHull == NULL ) {
|
|
continue;
|
|
}
|
|
if ( !( s2->material->GetContentFlags() & CONTENTS_AREAPORTAL ) ) {
|
|
continue;
|
|
}
|
|
common->Warning( "brush has multiple area portal sides at %s", s2->visibleHull->GetCenter().ToString() );
|
|
delete s2->visibleHull;
|
|
s2->visibleHull = NULL;
|
|
}
|
|
return s;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
FloodAreas_r
|
|
=============
|
|
*/
|
|
void FloodAreas_r (node_t *node)
|
|
{
|
|
uPortal_t *p;
|
|
int s;
|
|
|
|
if ( node->area != -1 ) {
|
|
return; // allready got it
|
|
}
|
|
if ( node->opaque ) {
|
|
return;
|
|
}
|
|
|
|
c_areaFloods++;
|
|
node->area = c_areas;
|
|
|
|
for ( p=node->portals ; p ; p = p->next[s] ) {
|
|
node_t *other;
|
|
|
|
s = (p->nodes[1] == node);
|
|
other = p->nodes[!s];
|
|
|
|
if ( !Portal_Passable(p) ) {
|
|
continue;
|
|
}
|
|
|
|
// can't flood through an area portal
|
|
if ( FindSideForPortal( p ) ) {
|
|
continue;
|
|
}
|
|
|
|
FloodAreas_r( other );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============
|
|
FindAreas_r
|
|
|
|
Just decend the tree, and for each node that hasn't had an
|
|
area set, flood fill out from there
|
|
=============
|
|
*/
|
|
void FindAreas_r( node_t *node ) {
|
|
if ( node->planenum != PLANENUM_LEAF ) {
|
|
FindAreas_r (node->children[0]);
|
|
FindAreas_r (node->children[1]);
|
|
return;
|
|
}
|
|
|
|
if ( node->opaque ) {
|
|
return;
|
|
}
|
|
|
|
if ( node->area != -1 ) {
|
|
return; // allready got it
|
|
}
|
|
|
|
c_areaFloods = 0;
|
|
FloodAreas_r (node);
|
|
common->Printf( "area %i has %i leafs\n", c_areas, c_areaFloods );
|
|
c_areas++;
|
|
}
|
|
|
|
/*
|
|
============
|
|
CheckAreas_r
|
|
============
|
|
*/
|
|
void CheckAreas_r( node_t *node ) {
|
|
if ( node->planenum != PLANENUM_LEAF ) {
|
|
CheckAreas_r (node->children[0]);
|
|
CheckAreas_r (node->children[1]);
|
|
return;
|
|
}
|
|
if ( !node->opaque && node->area < 0 ) {
|
|
common->Error( "CheckAreas_r: area = %i", node->area );
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
ClearAreas_r
|
|
|
|
Set all the areas to -1 before filling
|
|
============
|
|
*/
|
|
void ClearAreas_r( node_t *node ) {
|
|
if ( node->planenum != PLANENUM_LEAF ) {
|
|
ClearAreas_r (node->children[0]);
|
|
ClearAreas_r (node->children[1]);
|
|
return;
|
|
}
|
|
node->area = -1;
|
|
}
|
|
|
|
//=============================================================
|
|
|
|
|
|
/*
|
|
=================
|
|
FindInterAreaPortals_r
|
|
|
|
=================
|
|
*/
|
|
static void FindInterAreaPortals_r( node_t *node ) {
|
|
uPortal_t *p;
|
|
int s;
|
|
int i;
|
|
idWinding *w;
|
|
interAreaPortal_t *iap;
|
|
side_t *side;
|
|
|
|
if ( node->planenum != PLANENUM_LEAF ) {
|
|
FindInterAreaPortals_r( node->children[0] );
|
|
FindInterAreaPortals_r( node->children[1] );
|
|
return;
|
|
}
|
|
|
|
if ( node->opaque ) {
|
|
return;
|
|
}
|
|
|
|
for ( p=node->portals ; p ; p = p->next[s] ) {
|
|
node_t *other;
|
|
|
|
s = (p->nodes[1] == node);
|
|
other = p->nodes[!s];
|
|
|
|
if ( other->opaque ) {
|
|
continue;
|
|
}
|
|
|
|
// only report areas going from lower number to higher number
|
|
// so we don't report the portal twice
|
|
if ( other->area <= node->area ) {
|
|
continue;
|
|
}
|
|
|
|
side = FindSideForPortal( p );
|
|
// w = p->winding;
|
|
if ( !side ) {
|
|
common->Warning( "FindSideForPortal failed at %s", p->winding->GetCenter().ToString() );
|
|
continue;
|
|
}
|
|
w = side->visibleHull;
|
|
if ( !w ) {
|
|
continue;
|
|
}
|
|
|
|
// see if we have created this portal before
|
|
for ( i = 0 ; i < numInterAreaPortals ; i++ ) {
|
|
iap = &interAreaPortals[i];
|
|
|
|
if ( side == iap->side &&
|
|
( ( p->nodes[0]->area == iap->area0 && p->nodes[1]->area == iap->area1 )
|
|
|| ( p->nodes[1]->area == iap->area0 && p->nodes[0]->area == iap->area1 ) ) ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( i != numInterAreaPortals ) {
|
|
continue; // already emited
|
|
}
|
|
|
|
iap = &interAreaPortals[numInterAreaPortals];
|
|
numInterAreaPortals++;
|
|
if ( side->planenum == p->onnode->planenum ) {
|
|
iap->area0 = p->nodes[0]->area;
|
|
iap->area1 = p->nodes[1]->area;
|
|
} else {
|
|
iap->area0 = p->nodes[1]->area;
|
|
iap->area1 = p->nodes[0]->area;
|
|
}
|
|
iap->side = side;
|
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
=============
|
|
FloodAreas
|
|
|
|
Mark each leaf with an area, bounded by CONTENTS_AREAPORTAL
|
|
Sets e->areas.numAreas
|
|
=============
|
|
*/
|
|
void FloodAreas( uEntity_t *e ) {
|
|
common->Printf ("--- FloodAreas ---\n");
|
|
|
|
// set all areas to -1
|
|
ClearAreas_r( e->tree->headnode );
|
|
|
|
// flood fill from non-opaque areas
|
|
c_areas = 0;
|
|
FindAreas_r( e->tree->headnode );
|
|
|
|
common->Printf ("%5i areas\n", c_areas);
|
|
e->numAreas = c_areas;
|
|
|
|
// make sure we got all of them
|
|
CheckAreas_r( e->tree->headnode );
|
|
|
|
// identify all portals between areas if this is the world
|
|
if ( e == &dmapGlobals.uEntities[0] ) {
|
|
numInterAreaPortals = 0;
|
|
FindInterAreaPortals_r( e->tree->headnode );
|
|
}
|
|
}
|
|
|
|
/*
|
|
======================================================
|
|
|
|
FILL OUTSIDE
|
|
|
|
======================================================
|
|
*/
|
|
|
|
static int c_outside;
|
|
static int c_inside;
|
|
static int c_solid;
|
|
|
|
void FillOutside_r (node_t *node)
|
|
{
|
|
if (node->planenum != PLANENUM_LEAF)
|
|
{
|
|
FillOutside_r (node->children[0]);
|
|
FillOutside_r (node->children[1]);
|
|
return;
|
|
}
|
|
|
|
// anything not reachable by an entity
|
|
// can be filled away
|
|
if (!node->occupied) {
|
|
if ( !node->opaque ) {
|
|
c_outside++;
|
|
node->opaque = true;
|
|
} else {
|
|
c_solid++;
|
|
}
|
|
} else {
|
|
c_inside++;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
=============
|
|
FillOutside
|
|
|
|
Fill (set node->opaque = true) all nodes that can't be reached by entities
|
|
=============
|
|
*/
|
|
void FillOutside( uEntity_t *e ) {
|
|
c_outside = 0;
|
|
c_inside = 0;
|
|
c_solid = 0;
|
|
common->Printf ("--- FillOutside ---\n");
|
|
FillOutside_r( e->tree->headnode );
|
|
common->Printf ("%5i solid leafs\n", c_solid);
|
|
common->Printf ("%5i leafs filled\n", c_outside);
|
|
common->Printf ("%5i inside leafs\n", c_inside);
|
|
}
|