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05e8ab9538
* Updated TODO * Moved ChangeLog to root * Updated ChangeLog * s/Foobar/Quake III Arena Source Code/ * Biggest patch EVAR. I wonder how many mail boxes this will fill...
839 lines
20 KiB
C
839 lines
20 KiB
C
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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// cmodel.c -- model loading
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#include "cm_local.h"
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#ifdef BSPC
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#include "../bspc/l_qfiles.h"
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void SetPlaneSignbits (cplane_t *out) {
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int bits, j;
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// for fast box on planeside test
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bits = 0;
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for (j=0 ; j<3 ; j++) {
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if (out->normal[j] < 0) {
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bits |= 1<<j;
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}
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}
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out->signbits = bits;
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}
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#endif //BSPC
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// to allow boxes to be treated as brush models, we allocate
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// some extra indexes along with those needed by the map
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#define BOX_BRUSHES 1
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#define BOX_SIDES 6
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#define BOX_LEAFS 2
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#define BOX_PLANES 12
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#define LL(x) x=LittleLong(x)
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clipMap_t cm;
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int c_pointcontents;
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int c_traces, c_brush_traces, c_patch_traces;
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byte *cmod_base;
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#ifndef BSPC
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cvar_t *cm_noAreas;
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cvar_t *cm_noCurves;
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cvar_t *cm_playerCurveClip;
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#endif
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cmodel_t box_model;
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cplane_t *box_planes;
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cbrush_t *box_brush;
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void CM_InitBoxHull (void);
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void CM_FloodAreaConnections (void);
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/*
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===============================================================================
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MAP LOADING
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===============================================================================
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*/
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/*
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=================
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CMod_LoadShaders
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=================
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*/
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void CMod_LoadShaders( lump_t *l ) {
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dshader_t *in, *out;
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int i, count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in)) {
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Com_Error (ERR_DROP, "CMod_LoadShaders: funny lump size");
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}
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count = l->filelen / sizeof(*in);
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if (count < 1) {
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Com_Error (ERR_DROP, "Map with no shaders");
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}
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cm.shaders = Hunk_Alloc( count * sizeof( *cm.shaders ), h_high );
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cm.numShaders = count;
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Com_Memcpy( cm.shaders, in, count * sizeof( *cm.shaders ) );
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out = cm.shaders;
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for ( i=0 ; i<count ; i++, in++, out++ ) {
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out->contentFlags = LittleLong( out->contentFlags );
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out->surfaceFlags = LittleLong( out->surfaceFlags );
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}
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}
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/*
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=================
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CMod_LoadSubmodels
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=================
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*/
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void CMod_LoadSubmodels( lump_t *l ) {
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dmodel_t *in;
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cmodel_t *out;
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int i, j, count;
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int *indexes;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "CMod_LoadSubmodels: funny lump size");
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count = l->filelen / sizeof(*in);
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if (count < 1)
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Com_Error (ERR_DROP, "Map with no models");
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cm.cmodels = Hunk_Alloc( count * sizeof( *cm.cmodels ), h_high );
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cm.numSubModels = count;
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if ( count > MAX_SUBMODELS ) {
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Com_Error( ERR_DROP, "MAX_SUBMODELS exceeded" );
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}
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for ( i=0 ; i<count ; i++, in++, out++)
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{
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out = &cm.cmodels[i];
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for (j=0 ; j<3 ; j++)
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{ // spread the mins / maxs by a pixel
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out->mins[j] = LittleFloat (in->mins[j]) - 1;
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out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
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}
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if ( i == 0 ) {
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continue; // world model doesn't need other info
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}
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// make a "leaf" just to hold the model's brushes and surfaces
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out->leaf.numLeafBrushes = LittleLong( in->numBrushes );
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indexes = Hunk_Alloc( out->leaf.numLeafBrushes * 4, h_high );
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out->leaf.firstLeafBrush = indexes - cm.leafbrushes;
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for ( j = 0 ; j < out->leaf.numLeafBrushes ; j++ ) {
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indexes[j] = LittleLong( in->firstBrush ) + j;
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}
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out->leaf.numLeafSurfaces = LittleLong( in->numSurfaces );
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indexes = Hunk_Alloc( out->leaf.numLeafSurfaces * 4, h_high );
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out->leaf.firstLeafSurface = indexes - cm.leafsurfaces;
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for ( j = 0 ; j < out->leaf.numLeafSurfaces ; j++ ) {
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indexes[j] = LittleLong( in->firstSurface ) + j;
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}
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}
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}
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/*
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=================
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CMod_LoadNodes
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=================
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*/
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void CMod_LoadNodes( lump_t *l ) {
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dnode_t *in;
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int child;
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cNode_t *out;
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int i, j, count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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count = l->filelen / sizeof(*in);
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if (count < 1)
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Com_Error (ERR_DROP, "Map has no nodes");
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cm.nodes = Hunk_Alloc( count * sizeof( *cm.nodes ), h_high );
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cm.numNodes = count;
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out = cm.nodes;
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for (i=0 ; i<count ; i++, out++, in++)
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{
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out->plane = cm.planes + LittleLong( in->planeNum );
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for (j=0 ; j<2 ; j++)
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{
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child = LittleLong (in->children[j]);
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out->children[j] = child;
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}
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}
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}
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/*
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=================
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CM_BoundBrush
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=================
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*/
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void CM_BoundBrush( cbrush_t *b ) {
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b->bounds[0][0] = -b->sides[0].plane->dist;
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b->bounds[1][0] = b->sides[1].plane->dist;
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b->bounds[0][1] = -b->sides[2].plane->dist;
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b->bounds[1][1] = b->sides[3].plane->dist;
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b->bounds[0][2] = -b->sides[4].plane->dist;
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b->bounds[1][2] = b->sides[5].plane->dist;
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}
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/*
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=================
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CMod_LoadBrushes
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=================
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*/
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void CMod_LoadBrushes( lump_t *l ) {
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dbrush_t *in;
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cbrush_t *out;
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int i, count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in)) {
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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}
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count = l->filelen / sizeof(*in);
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cm.brushes = Hunk_Alloc( ( BOX_BRUSHES + count ) * sizeof( *cm.brushes ), h_high );
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cm.numBrushes = count;
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out = cm.brushes;
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for ( i=0 ; i<count ; i++, out++, in++ ) {
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out->sides = cm.brushsides + LittleLong(in->firstSide);
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out->numsides = LittleLong(in->numSides);
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out->shaderNum = LittleLong( in->shaderNum );
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if ( out->shaderNum < 0 || out->shaderNum >= cm.numShaders ) {
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Com_Error( ERR_DROP, "CMod_LoadBrushes: bad shaderNum: %i", out->shaderNum );
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}
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out->contents = cm.shaders[out->shaderNum].contentFlags;
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CM_BoundBrush( out );
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}
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}
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/*
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=================
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CMod_LoadLeafs
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=================
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*/
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void CMod_LoadLeafs (lump_t *l)
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{
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int i;
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cLeaf_t *out;
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dleaf_t *in;
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int count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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count = l->filelen / sizeof(*in);
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if (count < 1)
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Com_Error (ERR_DROP, "Map with no leafs");
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cm.leafs = Hunk_Alloc( ( BOX_LEAFS + count ) * sizeof( *cm.leafs ), h_high );
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cm.numLeafs = count;
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out = cm.leafs;
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for ( i=0 ; i<count ; i++, in++, out++)
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{
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out->cluster = LittleLong (in->cluster);
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out->area = LittleLong (in->area);
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out->firstLeafBrush = LittleLong (in->firstLeafBrush);
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out->numLeafBrushes = LittleLong (in->numLeafBrushes);
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out->firstLeafSurface = LittleLong (in->firstLeafSurface);
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out->numLeafSurfaces = LittleLong (in->numLeafSurfaces);
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if (out->cluster >= cm.numClusters)
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cm.numClusters = out->cluster + 1;
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if (out->area >= cm.numAreas)
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cm.numAreas = out->area + 1;
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}
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cm.areas = Hunk_Alloc( cm.numAreas * sizeof( *cm.areas ), h_high );
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cm.areaPortals = Hunk_Alloc( cm.numAreas * cm.numAreas * sizeof( *cm.areaPortals ), h_high );
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}
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/*
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=================
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CMod_LoadPlanes
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=================
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*/
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void CMod_LoadPlanes (lump_t *l)
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{
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int i, j;
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cplane_t *out;
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dplane_t *in;
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int count;
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int bits;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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count = l->filelen / sizeof(*in);
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if (count < 1)
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Com_Error (ERR_DROP, "Map with no planes");
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cm.planes = Hunk_Alloc( ( BOX_PLANES + count ) * sizeof( *cm.planes ), h_high );
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cm.numPlanes = count;
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out = cm.planes;
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for ( i=0 ; i<count ; i++, in++, out++)
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{
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bits = 0;
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for (j=0 ; j<3 ; j++)
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{
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out->normal[j] = LittleFloat (in->normal[j]);
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if (out->normal[j] < 0)
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bits |= 1<<j;
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}
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out->dist = LittleFloat (in->dist);
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out->type = PlaneTypeForNormal( out->normal );
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out->signbits = bits;
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}
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}
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/*
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=================
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CMod_LoadLeafBrushes
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=================
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*/
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void CMod_LoadLeafBrushes (lump_t *l)
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{
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int i;
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int *out;
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int *in;
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int count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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count = l->filelen / sizeof(*in);
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cm.leafbrushes = Hunk_Alloc( (count + BOX_BRUSHES) * sizeof( *cm.leafbrushes ), h_high );
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cm.numLeafBrushes = count;
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out = cm.leafbrushes;
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for ( i=0 ; i<count ; i++, in++, out++) {
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*out = LittleLong (*in);
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}
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}
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/*
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=================
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CMod_LoadLeafSurfaces
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=================
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*/
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void CMod_LoadLeafSurfaces( lump_t *l )
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{
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int i;
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int *out;
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int *in;
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int count;
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in = (void *)(cmod_base + l->fileofs);
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if (l->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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count = l->filelen / sizeof(*in);
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cm.leafsurfaces = Hunk_Alloc( count * sizeof( *cm.leafsurfaces ), h_high );
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cm.numLeafSurfaces = count;
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out = cm.leafsurfaces;
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for ( i=0 ; i<count ; i++, in++, out++) {
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*out = LittleLong (*in);
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}
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}
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/*
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=================
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CMod_LoadBrushSides
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=================
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*/
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void CMod_LoadBrushSides (lump_t *l)
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{
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int i;
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cbrushside_t *out;
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dbrushside_t *in;
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int count;
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int num;
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in = (void *)(cmod_base + l->fileofs);
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if ( l->filelen % sizeof(*in) ) {
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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}
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count = l->filelen / sizeof(*in);
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cm.brushsides = Hunk_Alloc( ( BOX_SIDES + count ) * sizeof( *cm.brushsides ), h_high );
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cm.numBrushSides = count;
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out = cm.brushsides;
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for ( i=0 ; i<count ; i++, in++, out++) {
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num = LittleLong( in->planeNum );
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out->plane = &cm.planes[num];
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out->shaderNum = LittleLong( in->shaderNum );
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if ( out->shaderNum < 0 || out->shaderNum >= cm.numShaders ) {
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Com_Error( ERR_DROP, "CMod_LoadBrushSides: bad shaderNum: %i", out->shaderNum );
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}
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out->surfaceFlags = cm.shaders[out->shaderNum].surfaceFlags;
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}
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}
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/*
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=================
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CMod_LoadEntityString
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=================
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*/
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void CMod_LoadEntityString( lump_t *l ) {
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cm.entityString = Hunk_Alloc( l->filelen, h_high );
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cm.numEntityChars = l->filelen;
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Com_Memcpy (cm.entityString, cmod_base + l->fileofs, l->filelen);
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}
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/*
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=================
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CMod_LoadVisibility
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=================
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*/
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#define VIS_HEADER 8
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void CMod_LoadVisibility( lump_t *l ) {
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int len;
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byte *buf;
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len = l->filelen;
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if ( !len ) {
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cm.clusterBytes = ( cm.numClusters + 31 ) & ~31;
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cm.visibility = Hunk_Alloc( cm.clusterBytes, h_high );
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Com_Memset( cm.visibility, 255, cm.clusterBytes );
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return;
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}
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buf = cmod_base + l->fileofs;
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cm.vised = qtrue;
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cm.visibility = Hunk_Alloc( len, h_high );
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cm.numClusters = LittleLong( ((int *)buf)[0] );
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cm.clusterBytes = LittleLong( ((int *)buf)[1] );
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Com_Memcpy (cm.visibility, buf + VIS_HEADER, len - VIS_HEADER );
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}
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//==================================================================
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/*
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=================
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CMod_LoadPatches
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=================
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*/
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#define MAX_PATCH_VERTS 1024
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void CMod_LoadPatches( lump_t *surfs, lump_t *verts ) {
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drawVert_t *dv, *dv_p;
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dsurface_t *in;
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int count;
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int i, j;
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int c;
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cPatch_t *patch;
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vec3_t points[MAX_PATCH_VERTS];
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int width, height;
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int shaderNum;
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in = (void *)(cmod_base + surfs->fileofs);
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if (surfs->filelen % sizeof(*in))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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cm.numSurfaces = count = surfs->filelen / sizeof(*in);
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cm.surfaces = Hunk_Alloc( cm.numSurfaces * sizeof( cm.surfaces[0] ), h_high );
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dv = (void *)(cmod_base + verts->fileofs);
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if (verts->filelen % sizeof(*dv))
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Com_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size");
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// scan through all the surfaces, but only load patches,
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// not planar faces
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for ( i = 0 ; i < count ; i++, in++ ) {
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if ( LittleLong( in->surfaceType ) != MST_PATCH ) {
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continue; // ignore other surfaces
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}
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// FIXME: check for non-colliding patches
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cm.surfaces[ i ] = patch = Hunk_Alloc( sizeof( *patch ), h_high );
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// load the full drawverts onto the stack
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width = LittleLong( in->patchWidth );
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height = LittleLong( in->patchHeight );
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c = width * height;
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if ( c > MAX_PATCH_VERTS ) {
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Com_Error( ERR_DROP, "ParseMesh: MAX_PATCH_VERTS" );
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}
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dv_p = dv + LittleLong( in->firstVert );
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for ( j = 0 ; j < c ; j++, dv_p++ ) {
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points[j][0] = LittleFloat( dv_p->xyz[0] );
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points[j][1] = LittleFloat( dv_p->xyz[1] );
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points[j][2] = LittleFloat( dv_p->xyz[2] );
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}
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|
|
shaderNum = LittleLong( in->shaderNum );
|
|
patch->contents = cm.shaders[shaderNum].contentFlags;
|
|
patch->surfaceFlags = cm.shaders[shaderNum].surfaceFlags;
|
|
|
|
// create the internal facet structure
|
|
patch->pc = CM_GeneratePatchCollide( width, height, points );
|
|
}
|
|
}
|
|
|
|
//==================================================================
|
|
|
|
unsigned CM_LumpChecksum(lump_t *lump) {
|
|
return LittleLong (Com_BlockChecksum (cmod_base + lump->fileofs, lump->filelen));
|
|
}
|
|
|
|
unsigned CM_Checksum(dheader_t *header) {
|
|
unsigned checksums[16];
|
|
checksums[0] = CM_LumpChecksum(&header->lumps[LUMP_SHADERS]);
|
|
checksums[1] = CM_LumpChecksum(&header->lumps[LUMP_LEAFS]);
|
|
checksums[2] = CM_LumpChecksum(&header->lumps[LUMP_LEAFBRUSHES]);
|
|
checksums[3] = CM_LumpChecksum(&header->lumps[LUMP_LEAFSURFACES]);
|
|
checksums[4] = CM_LumpChecksum(&header->lumps[LUMP_PLANES]);
|
|
checksums[5] = CM_LumpChecksum(&header->lumps[LUMP_BRUSHSIDES]);
|
|
checksums[6] = CM_LumpChecksum(&header->lumps[LUMP_BRUSHES]);
|
|
checksums[7] = CM_LumpChecksum(&header->lumps[LUMP_MODELS]);
|
|
checksums[8] = CM_LumpChecksum(&header->lumps[LUMP_NODES]);
|
|
checksums[9] = CM_LumpChecksum(&header->lumps[LUMP_SURFACES]);
|
|
checksums[10] = CM_LumpChecksum(&header->lumps[LUMP_DRAWVERTS]);
|
|
|
|
return LittleLong(Com_BlockChecksum(checksums, 11 * 4));
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CM_LoadMap
|
|
|
|
Loads in the map and all submodels
|
|
==================
|
|
*/
|
|
void CM_LoadMap( const char *name, qboolean clientload, int *checksum ) {
|
|
int *buf;
|
|
int i;
|
|
dheader_t header;
|
|
int length;
|
|
static unsigned last_checksum;
|
|
|
|
if ( !name || !name[0] ) {
|
|
Com_Error( ERR_DROP, "CM_LoadMap: NULL name" );
|
|
}
|
|
|
|
#ifndef BSPC
|
|
cm_noAreas = Cvar_Get ("cm_noAreas", "0", CVAR_CHEAT);
|
|
cm_noCurves = Cvar_Get ("cm_noCurves", "0", CVAR_CHEAT);
|
|
cm_playerCurveClip = Cvar_Get ("cm_playerCurveClip", "1", CVAR_ARCHIVE|CVAR_CHEAT );
|
|
#endif
|
|
Com_DPrintf( "CM_LoadMap( %s, %i )\n", name, clientload );
|
|
|
|
if ( !strcmp( cm.name, name ) && clientload ) {
|
|
*checksum = last_checksum;
|
|
return;
|
|
}
|
|
|
|
// free old stuff
|
|
Com_Memset( &cm, 0, sizeof( cm ) );
|
|
CM_ClearLevelPatches();
|
|
|
|
if ( !name[0] ) {
|
|
cm.numLeafs = 1;
|
|
cm.numClusters = 1;
|
|
cm.numAreas = 1;
|
|
cm.cmodels = Hunk_Alloc( sizeof( *cm.cmodels ), h_high );
|
|
*checksum = 0;
|
|
return;
|
|
}
|
|
|
|
//
|
|
// load the file
|
|
//
|
|
#ifndef BSPC
|
|
length = FS_ReadFile( name, (void **)&buf );
|
|
#else
|
|
length = LoadQuakeFile((quakefile_t *) name, (void **)&buf);
|
|
#endif
|
|
|
|
if ( !buf ) {
|
|
Com_Error (ERR_DROP, "Couldn't load %s", name);
|
|
}
|
|
|
|
last_checksum = LittleLong (Com_BlockChecksum (buf, length));
|
|
*checksum = last_checksum;
|
|
|
|
header = *(dheader_t *)buf;
|
|
for (i=0 ; i<sizeof(dheader_t)/4 ; i++) {
|
|
((int *)&header)[i] = LittleLong ( ((int *)&header)[i]);
|
|
}
|
|
|
|
if ( header.version != BSP_VERSION ) {
|
|
Com_Error (ERR_DROP, "CM_LoadMap: %s has wrong version number (%i should be %i)"
|
|
, name, header.version, BSP_VERSION );
|
|
}
|
|
|
|
cmod_base = (byte *)buf;
|
|
|
|
// load into heap
|
|
CMod_LoadShaders( &header.lumps[LUMP_SHADERS] );
|
|
CMod_LoadLeafs (&header.lumps[LUMP_LEAFS]);
|
|
CMod_LoadLeafBrushes (&header.lumps[LUMP_LEAFBRUSHES]);
|
|
CMod_LoadLeafSurfaces (&header.lumps[LUMP_LEAFSURFACES]);
|
|
CMod_LoadPlanes (&header.lumps[LUMP_PLANES]);
|
|
CMod_LoadBrushSides (&header.lumps[LUMP_BRUSHSIDES]);
|
|
CMod_LoadBrushes (&header.lumps[LUMP_BRUSHES]);
|
|
CMod_LoadSubmodels (&header.lumps[LUMP_MODELS]);
|
|
CMod_LoadNodes (&header.lumps[LUMP_NODES]);
|
|
CMod_LoadEntityString (&header.lumps[LUMP_ENTITIES]);
|
|
CMod_LoadVisibility( &header.lumps[LUMP_VISIBILITY] );
|
|
CMod_LoadPatches( &header.lumps[LUMP_SURFACES], &header.lumps[LUMP_DRAWVERTS] );
|
|
|
|
// we are NOT freeing the file, because it is cached for the ref
|
|
FS_FreeFile (buf);
|
|
|
|
CM_InitBoxHull ();
|
|
|
|
CM_FloodAreaConnections ();
|
|
|
|
// allow this to be cached if it is loaded by the server
|
|
if ( !clientload ) {
|
|
Q_strncpyz( cm.name, name, sizeof( cm.name ) );
|
|
}
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CM_ClearMap
|
|
==================
|
|
*/
|
|
void CM_ClearMap( void ) {
|
|
Com_Memset( &cm, 0, sizeof( cm ) );
|
|
CM_ClearLevelPatches();
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CM_ClipHandleToModel
|
|
==================
|
|
*/
|
|
cmodel_t *CM_ClipHandleToModel( clipHandle_t handle ) {
|
|
if ( handle < 0 ) {
|
|
Com_Error( ERR_DROP, "CM_ClipHandleToModel: bad handle %i", handle );
|
|
}
|
|
if ( handle < cm.numSubModels ) {
|
|
return &cm.cmodels[handle];
|
|
}
|
|
if ( handle == BOX_MODEL_HANDLE ) {
|
|
return &box_model;
|
|
}
|
|
if ( handle < MAX_SUBMODELS ) {
|
|
Com_Error( ERR_DROP, "CM_ClipHandleToModel: bad handle %i < %i < %i",
|
|
cm.numSubModels, handle, MAX_SUBMODELS );
|
|
}
|
|
Com_Error( ERR_DROP, "CM_ClipHandleToModel: bad handle %i", handle + MAX_SUBMODELS );
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CM_InlineModel
|
|
==================
|
|
*/
|
|
clipHandle_t CM_InlineModel( int index ) {
|
|
if ( index < 0 || index >= cm.numSubModels ) {
|
|
Com_Error (ERR_DROP, "CM_InlineModel: bad number");
|
|
}
|
|
return index;
|
|
}
|
|
|
|
int CM_NumClusters( void ) {
|
|
return cm.numClusters;
|
|
}
|
|
|
|
int CM_NumInlineModels( void ) {
|
|
return cm.numSubModels;
|
|
}
|
|
|
|
char *CM_EntityString( void ) {
|
|
return cm.entityString;
|
|
}
|
|
|
|
int CM_LeafCluster( int leafnum ) {
|
|
if (leafnum < 0 || leafnum >= cm.numLeafs) {
|
|
Com_Error (ERR_DROP, "CM_LeafCluster: bad number");
|
|
}
|
|
return cm.leafs[leafnum].cluster;
|
|
}
|
|
|
|
int CM_LeafArea( int leafnum ) {
|
|
if ( leafnum < 0 || leafnum >= cm.numLeafs ) {
|
|
Com_Error (ERR_DROP, "CM_LeafArea: bad number");
|
|
}
|
|
return cm.leafs[leafnum].area;
|
|
}
|
|
|
|
//=======================================================================
|
|
|
|
|
|
/*
|
|
===================
|
|
CM_InitBoxHull
|
|
|
|
Set up the planes and nodes so that the six floats of a bounding box
|
|
can just be stored out and get a proper clipping hull structure.
|
|
===================
|
|
*/
|
|
void CM_InitBoxHull (void)
|
|
{
|
|
int i;
|
|
int side;
|
|
cplane_t *p;
|
|
cbrushside_t *s;
|
|
|
|
box_planes = &cm.planes[cm.numPlanes];
|
|
|
|
box_brush = &cm.brushes[cm.numBrushes];
|
|
box_brush->numsides = 6;
|
|
box_brush->sides = cm.brushsides + cm.numBrushSides;
|
|
box_brush->contents = CONTENTS_BODY;
|
|
|
|
box_model.leaf.numLeafBrushes = 1;
|
|
// box_model.leaf.firstLeafBrush = cm.numBrushes;
|
|
box_model.leaf.firstLeafBrush = cm.numLeafBrushes;
|
|
cm.leafbrushes[cm.numLeafBrushes] = cm.numBrushes;
|
|
|
|
for (i=0 ; i<6 ; i++)
|
|
{
|
|
side = i&1;
|
|
|
|
// brush sides
|
|
s = &cm.brushsides[cm.numBrushSides+i];
|
|
s->plane = cm.planes + (cm.numPlanes+i*2+side);
|
|
s->surfaceFlags = 0;
|
|
|
|
// planes
|
|
p = &box_planes[i*2];
|
|
p->type = i>>1;
|
|
p->signbits = 0;
|
|
VectorClear (p->normal);
|
|
p->normal[i>>1] = 1;
|
|
|
|
p = &box_planes[i*2+1];
|
|
p->type = 3 + (i>>1);
|
|
p->signbits = 0;
|
|
VectorClear (p->normal);
|
|
p->normal[i>>1] = -1;
|
|
|
|
SetPlaneSignbits( p );
|
|
}
|
|
}
|
|
|
|
/*
|
|
===================
|
|
CM_TempBoxModel
|
|
|
|
To keep everything totally uniform, bounding boxes are turned into small
|
|
BSP trees instead of being compared directly.
|
|
Capsules are handled differently though.
|
|
===================
|
|
*/
|
|
clipHandle_t CM_TempBoxModel( const vec3_t mins, const vec3_t maxs, int capsule ) {
|
|
|
|
VectorCopy( mins, box_model.mins );
|
|
VectorCopy( maxs, box_model.maxs );
|
|
|
|
if ( capsule ) {
|
|
return CAPSULE_MODEL_HANDLE;
|
|
}
|
|
|
|
box_planes[0].dist = maxs[0];
|
|
box_planes[1].dist = -maxs[0];
|
|
box_planes[2].dist = mins[0];
|
|
box_planes[3].dist = -mins[0];
|
|
box_planes[4].dist = maxs[1];
|
|
box_planes[5].dist = -maxs[1];
|
|
box_planes[6].dist = mins[1];
|
|
box_planes[7].dist = -mins[1];
|
|
box_planes[8].dist = maxs[2];
|
|
box_planes[9].dist = -maxs[2];
|
|
box_planes[10].dist = mins[2];
|
|
box_planes[11].dist = -mins[2];
|
|
|
|
VectorCopy( mins, box_brush->bounds[0] );
|
|
VectorCopy( maxs, box_brush->bounds[1] );
|
|
|
|
return BOX_MODEL_HANDLE;
|
|
}
|
|
|
|
/*
|
|
===================
|
|
CM_ModelBounds
|
|
===================
|
|
*/
|
|
void CM_ModelBounds( clipHandle_t model, vec3_t mins, vec3_t maxs ) {
|
|
cmodel_t *cmod;
|
|
|
|
cmod = CM_ClipHandleToModel( model );
|
|
VectorCopy( cmod->mins, mins );
|
|
VectorCopy( cmod->maxs, maxs );
|
|
}
|
|
|
|
|