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ericw-tools/qbsp/map.cc

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/*
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1997 Greg Lewis
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
See file, 'COPYING', for details.
*/
#include <string>
#include <memory>
#include <ctype.h>
#include <string.h>
#include "qbsp.hh"
#include "parser.hh"
#include "wad.hh"
#define info_player_start 1
#define info_player_deathmatch 2
#define info_player_coop 4
static int rgfStartSpots;
const mapface_t &mapbrush_t::face(int i) const {
if (i < 0 || i >= this->numfaces)
Error("mapbrush_t::face: %d out of bounds (numfaces %d)", i, this->numfaces);
return map.faces.at(this->firstface + i);
}
const mapbrush_t &mapentity_t::mapbrush(int i) const {
if (i < 0 || i >= this->nummapbrushes)
Error("mapentity_t::mapbrush: %d out of bounds (nummapbrushes %d)", i, this->nummapbrushes);
return map.brushes.at(this->firstmapbrush + i);
}
static void
AddAnimTex(const char *name)
{
int i, j, frame;
char framename[16], basechar = '0';
frame = name[1];
if (frame >= 'a' && frame <= 'j')
frame -= 'a' - 'A';
if (frame >= '0' && frame <= '9') {
frame -= '0';
basechar = '0';
} else if (frame >= 'A' && frame <= 'J') {
frame -= 'A';
basechar = 'A';
}
if (frame < 0 || frame > 9)
Error("Bad animating texture %s", name);
/*
* Always add the lower numbered animation frames first, otherwise
* many Quake engines will exit with an error loading the bsp.
*/
q_snprintf(framename, sizeof(framename), "%s", name);
for (i = 0; i < frame; i++) {
framename[1] = basechar + i;
for (j = 0; j < map.nummiptex(); j++) {
if (!Q_strcasecmp(framename, map.miptex.at(j).c_str()))
break;
}
if (j < map.nummiptex())
continue;
map.miptex.push_back(framename);
}
}
int
FindMiptex(const char *name)
{
const char *pathsep;
int i;
/* Ignore leading path in texture names (Q2 map compatibility) */
pathsep = strrchr(name, '/');
if (pathsep)
name = pathsep + 1;
for (i = 0; i < map.nummiptex(); i++) {
if (!Q_strcasecmp(name, map.miptex.at(i).c_str()))
return i;
}
/* Handle animating textures carefully */
if (name[0] == '+') {
AddAnimTex(name);
i = map.nummiptex();
}
map.miptex.push_back(name);
return i;
}
static bool
IsSkipName(const char *name)
{
if (options.fNoskip)
return false;
if (!Q_strcasecmp(name, "skip"))
return true;
if (!Q_strcasecmp(name, "*waterskip"))
return true;
if (!Q_strcasecmp(name, "*slimeskip"))
return true;
if (!Q_strcasecmp(name, "*lavaskip"))
return true;
return false;
}
static bool
IsSpecialName(const char *name)
{
if (options.fSplitspecial)
return false;
if (name[0] == '*' && !options.fSplitturb)
return true;
if (!Q_strncasecmp(name, "sky", 3) && !options.fSplitsky)
return true;
return false;
}
static bool
IsHintName(const char *name)
{
if (!Q_strcasecmp(name, "hint"))
return true;
if (!Q_strcasecmp(name, "hintskip"))
return true;
return false;
}
/*
===============
FindTexinfo
Returns a global texinfo number
===============
*/
int
FindTexinfo(mtexinfo_t *texinfo, uint64_t flags)
{
const size_t num_texinfo = map.mtexinfos.size();
/* Set the texture flags */
texinfo->flags = flags;
for (size_t index = 0; index < num_texinfo; index++) {
const mtexinfo_t *target = &map.mtexinfos.at(index);
if (texinfo->miptex != target->miptex)
continue;
if (texinfo->flags != target->flags)
continue;
/* Don't worry about texture alignment on skip or hint surfaces */
if (texinfo->flags & (TEX_SKIP | TEX_HINT))
return index;
int j;
for (j = 0; j < 4; j++) {
if (texinfo->vecs[0][j] != target->vecs[0][j])
break;
if (texinfo->vecs[1][j] != target->vecs[1][j])
break;
}
if (j != 4)
continue;
return static_cast<int>(index);
}
/* Allocate a new texinfo at the end of the array */
map.mtexinfos.push_back(*texinfo);
return static_cast<int>(num_texinfo);
}
/* detect colors with components in 0-1 and scale them to 0-255 */
static void
normalize_color_format(vec3_t color)
{
if (color[0] >= 0 && color[0] <= 1 &&
color[1] >= 0 && color[1] <= 1 &&
color[2] >= 0 && color[2] <= 1)
{
VectorScale(color, 255, color);
}
}
int
FindTexinfoEnt(mtexinfo_t *texinfo, const mapentity_t *entity)
{
uint64_t flags = 0;
const char *texname = map.miptex.at(texinfo->miptex).c_str();
if (IsSkipName(texname))
flags |= TEX_SKIP;
if (IsHintName(texname))
flags |= TEX_HINT;
if (IsSpecialName(texname))
flags |= TEX_SPECIAL;
if (atoi(ValueForKey(entity, "_dirt")) == -1)
flags |= TEX_NODIRT;
// handle "_phong" and "_phong_angle"
vec_t phongangle = atof(ValueForKey(entity, "_phong_angle"));
const int phong = atoi(ValueForKey(entity, "_phong"));
if (phong && (phongangle == 0.0)) {
phongangle = 89.0; // default _phong_angle
}
if (phongangle) {
const uint8_t phongangle_byte = (uint8_t) qmax(0, qmin(255, (int)rint(phongangle)));
flags |= (phongangle_byte << TEX_PHONG_ANGLE_SHIFT);
}
// handle "_minlight"
const vec_t minlight = atof(ValueForKey(entity, "_minlight"));
if (minlight > 0) {
const uint8_t minlight_byte = (uint8_t) qmax(0, qmin(255, (int)rint(minlight)));
flags |= (minlight_byte << TEX_MINLIGHT_SHIFT);
}
// handle "_mincolor"
{
vec3_t mincolor {0.0, 0.0, 0.0};
GetVectorForKey(entity, "_mincolor", mincolor);
if (VectorCompare(vec3_origin, mincolor)) {
GetVectorForKey(entity, "_minlight_color", mincolor);
}
normalize_color_format(mincolor);
if (!VectorCompare(vec3_origin, mincolor)) {
const uint64_t r_byte = qmax(0, qmin(255, (int)rint(mincolor[0])));
const uint64_t g_byte = qmax(0, qmin(255, (int)rint(mincolor[1])));
const uint64_t b_byte = qmax(0, qmin(255, (int)rint(mincolor[2])));
flags |= (r_byte << TEX_MINLIGHT_COLOR_R_SHIFT);
flags |= (g_byte << TEX_MINLIGHT_COLOR_G_SHIFT);
flags |= (b_byte << TEX_MINLIGHT_COLOR_B_SHIFT);
}
}
return FindTexinfo(texinfo, flags);
}
static void
ParseEpair(parser_t *parser, mapentity_t *entity)
{
epair_t *epair;
epair = (epair_t *)AllocMem(OTHER, sizeof(epair_t), true);
epair->next = entity->epairs;
entity->epairs = epair;
if (strlen(parser->token) >= MAX_KEY - 1)
goto parse_error;
epair->key = copystring(parser->token);
ParseToken(parser, PARSE_SAMELINE);
if (strlen(parser->token) >= MAX_VALUE - 1)
goto parse_error;
epair->value = copystring(parser->token);
if (!Q_strcasecmp(epair->key, "origin")) {
GetVectorForKey(entity, epair->key, entity->origin);
} else if (!Q_strcasecmp(epair->key, "classname")) {
if (!Q_strcasecmp(epair->value, "info_player_start")) {
if (rgfStartSpots & info_player_start)
Message(msgWarning, warnMultipleStarts);
rgfStartSpots |= info_player_start;
} else if (!Q_strcasecmp(epair->value, "info_player_deathmatch")) {
rgfStartSpots |= info_player_deathmatch;
} else if (!Q_strcasecmp(epair->value, "info_player_coop")) {
rgfStartSpots |= info_player_coop;
}
}
return;
parse_error:
Error("line %d: Entity key or value too long", parser->linenum);
}
static void
TextureAxisFromPlane(const plane_t *plane, vec3_t xv, vec3_t yv)
{
vec3_t baseaxis[18] = {
{0, 0, 1}, {1, 0, 0}, {0, -1, 0}, // floor
{0, 0, -1}, {1, 0, 0}, {0, -1, 0}, // ceiling
{1, 0, 0}, {0, 1, 0}, {0, 0, -1}, // west wall
{-1, 0, 0}, {0, 1, 0}, {0, 0, -1}, // east wall
{0, 1, 0}, {1, 0, 0}, {0, 0, -1}, // south wall
{0, -1, 0}, {1, 0, 0}, {0, 0, -1} // north wall
};
int bestaxis;
vec_t dot, best;
int i;
best = 0;
bestaxis = 0;
for (i = 0; i < 6; i++) {
dot = DotProduct(plane->normal, baseaxis[i * 3]);
if (dot > best || (dot == best && !options.fOldaxis)) {
best = dot;
bestaxis = i;
}
}
VectorCopy(baseaxis[bestaxis * 3 + 1], xv);
VectorCopy(baseaxis[bestaxis * 3 + 2], yv);
}
typedef enum {
TX_QUAKED = 0,
TX_QUARK_TYPE1 = 1,
TX_QUARK_TYPE2 = 2,
TX_VALVE_220 = 3,
TX_BRUSHPRIM = 4
} texcoord_style_t;
static texcoord_style_t
ParseExtendedTX(parser_t *parser)
{
texcoord_style_t style = TX_QUAKED;
if (ParseToken(parser, PARSE_COMMENT | PARSE_OPTIONAL)) {
if (!strncmp(parser->token, "//TX", 4)) {
if (parser->token[4] == '1')
style = TX_QUARK_TYPE1;
else if (parser->token[4] == '2')
style = TX_QUARK_TYPE2;
}
} else {
/* Throw away extra Quake 2 surface info */
ParseToken(parser, PARSE_OPTIONAL); /* contents */
ParseToken(parser, PARSE_OPTIONAL); /* flags */
ParseToken(parser, PARSE_OPTIONAL); /* value */
}
return style;
}
static void
SetTexinfo_QuakeEd(const plane_t *plane, const vec_t shift[2], vec_t rotate,
const vec_t scale[2], mtexinfo_t *out)
{
int i, j;
vec3_t vecs[2];
int sv, tv;
vec_t ang, sinv, cosv;
vec_t ns, nt;
TextureAxisFromPlane(plane, vecs[0], vecs[1]);
/* Rotate axis */
ang = rotate / 180.0 * Q_PI;
sinv = sin(ang);
cosv = cos(ang);
if (vecs[0][0])
sv = 0;
else if (vecs[0][1])
sv = 1;
else
sv = 2;
if (vecs[1][0])
tv = 0;
else if (vecs[1][1])
tv = 1;
else
tv = 2;
for (i = 0; i < 2; i++) {
ns = cosv * vecs[i][sv] - sinv * vecs[i][tv];
nt = sinv * vecs[i][sv] + cosv * vecs[i][tv];
vecs[i][sv] = ns;
vecs[i][tv] = nt;
}
for (i = 0; i < 2; i++)
for (j = 0; j < 3; j++)
/* Interpret zero scale as no scaling */
out->vecs[i][j] = vecs[i][j] / (scale[i] ? scale[i] : 1);
out->vecs[0][3] = shift[0];
out->vecs[1][3] = shift[1];
}
static void
SetTexinfo_QuArK(parser_t *parser, vec3_t planepts[3],
texcoord_style_t style, mtexinfo_t *out)
{
int i;
vec3_t vecs[2];
vec_t a, b, c, d;
vec_t determinant;
/*
* Type 1 uses vecs[0] = (pt[2] - pt[0]) and vecs[1] = (pt[1] - pt[0])
* Type 2 reverses the order of the vecs
* 128 is the scaling factor assumed by QuArK.
*/
switch (style) {
case TX_QUARK_TYPE1:
VectorSubtract(planepts[2], planepts[0], vecs[0]);
VectorSubtract(planepts[1], planepts[0], vecs[1]);
break;
case TX_QUARK_TYPE2:
VectorSubtract(planepts[1], planepts[0], vecs[0]);
VectorSubtract(planepts[2], planepts[0], vecs[1]);
break;
default:
Error("Internal error: bad texture coordinate style");
}
VectorScale(vecs[0], 1.0 / 128.0, vecs[0]);
VectorScale(vecs[1], 1.0 / 128.0, vecs[1]);
a = DotProduct(vecs[0], vecs[0]);
b = DotProduct(vecs[0], vecs[1]);
c = b; /* DotProduct(vecs[1], vecs[0]); */
d = DotProduct(vecs[1], vecs[1]);
/*
* Want to solve for out->vecs:
*
* | a b | | out->vecs[0] | = | vecs[0] |
* | c d | | out->vecs[1] | | vecs[1] |
*
* => | out->vecs[0] | = __ 1.0__ | d -b | | vecs[0] |
* | out->vecs[1] | a*d - b*c | -c a | | vecs[1] |
*/
determinant = a * d - b * c;
if (fabs(determinant) < ZERO_EPSILON) {
Message(msgWarning, warnDegenerateQuArKTX, parser->linenum);
for (i = 0; i < 3; i++)
out->vecs[0][i] = out->vecs[1][i] = 0;
} else {
for (i = 0; i < 3; i++) {
out->vecs[0][i] = (d * vecs[0][i] - b * vecs[1][i]) / determinant;
out->vecs[1][i] = (a * vecs[1][i] - c * vecs[0][i]) / determinant;
}
}
/* Finally, the texture offset is indicated by planepts[0] */
for (i = 0; i < 3; ++i) {
vecs[0][i] = out->vecs[0][i];
vecs[1][i] = out->vecs[1][i];
}
out->vecs[0][3] = -DotProduct(vecs[0], planepts[0]);
out->vecs[1][3] = -DotProduct(vecs[1], planepts[0]);
}
static void
SetTexinfo_Valve220(vec3_t axis[2], const vec_t shift[2], const vec_t scale[2],
mtexinfo_t *out)
{
int i;
for (i = 0; i < 3; i++) {
out->vecs[0][i] = axis[0][i] / scale[0];
out->vecs[1][i] = axis[1][i] / scale[1];
}
out->vecs[0][3] = shift[0];
out->vecs[1][3] = shift[1];
}
/*
ComputeAxisBase()
from q3map2
computes the base texture axis for brush primitive texturing
note: ComputeAxisBase here and in editor code must always BE THE SAME!
warning: special case behaviour of atan2( y, x ) <-> atan( y / x ) might not be the same everywhere when x == 0
rotation by (0,RotY,RotZ) assigns X to normal
*/
static void ComputeAxisBase( const vec3_t normal_unsanitized, vec3_t texX, vec3_t texY ){
vec_t RotY, RotZ;
vec3_t normal;
VectorCopy(normal_unsanitized, normal);
/* do some cleaning */
if ( fabs( normal[ 0 ] ) < 1e-6 ) {
normal[ 0 ] = 0.0f;
}
if ( fabs( normal[ 1 ] ) < 1e-6 ) {
normal[ 1 ] = 0.0f;
}
if ( fabs( normal[ 2 ] ) < 1e-6 ) {
normal[ 2 ] = 0.0f;
}
/* compute the two rotations around y and z to rotate x to normal */
RotY = -atan2( normal[ 2 ], sqrt( normal[ 1 ] * normal[ 1 ] + normal[ 0 ] * normal[ 0 ] ) );
RotZ = atan2( normal[ 1 ], normal[ 0 ] );
/* rotate (0,1,0) and (0,0,1) to compute texX and texY */
texX[ 0 ] = -sin( RotZ );
texX[ 1 ] = cos( RotZ );
texX[ 2 ] = 0;
/* the texY vector is along -z (t texture coorinates axis) */
texY[ 0 ] = -sin( RotY ) * cos( RotZ );
texY[ 1 ] = -sin( RotY ) * sin( RotZ );
texY[ 2 ] = -cos( RotY );
}
static void
SetTexinfo_BrushPrimitives(const vec3_t texMat[2], const vec3_t faceNormal, int texWidth, int texHeight, mtexinfo_t *out)
{
vec3_t texX, texY;
ComputeAxisBase( faceNormal, texX, texY );
/*
derivation of the conversion below:
classic BSP texture vecs to texture coordinates:
u = (dot(vert, out->vecs[0]) + out->vecs[3]) / texWidth
brush primitives: (starting with q3map2 code, then rearranging it to look like the classic formula)
u = (texMat[0][0] * dot(vert, texX)) + (texMat[0][1] * dot(vert, texY)) + texMat[0][2]
factor out vert:
u = (vert[0] * (texX[0] * texMat[0][0] + texY[0] * texMat[0][1]))
+ (vert[1] * (texX[1] * texMat[0][0] + texY[1] * texMat[0][1]))
+ (vert[2] * (texX[2] * texMat[0][0] + texY[2] * texMat[0][1]))
+ texMat[0][2];
multiplying that by 1 = (texWidth / texWidth) gives us something in the same shape as the classic formula,
so we can get out->vecs.
*/
out->vecs[0][0] = texWidth * ((texX[0] * texMat[0][0]) + (texY[0] * texMat[0][1]));
out->vecs[0][1] = texWidth * ((texX[1] * texMat[0][0]) + (texY[1] * texMat[0][1]));
out->vecs[0][2] = texWidth * ((texX[2] * texMat[0][0]) + (texY[2] * texMat[0][1]));
out->vecs[0][3] = texWidth * texMat[0][2];
out->vecs[1][0] = texHeight * ((texX[0] * texMat[1][0]) + (texY[0] * texMat[1][1]));
out->vecs[1][1] = texHeight * ((texX[1] * texMat[1][0]) + (texY[1] * texMat[1][1]));
out->vecs[1][2] = texHeight * ((texX[2] * texMat[1][0]) + (texY[2] * texMat[1][1]));
out->vecs[1][3] = texHeight * texMat[1][2];
}
static void
ParsePlaneDef(parser_t *parser, vec3_t planepts[3])
{
int i, j;
for (i = 0; i < 3; i++) {
if (i != 0)
ParseToken(parser, PARSE_NORMAL);
if (strcmp(parser->token, "("))
goto parse_error;
for (j = 0; j < 3; j++) {
ParseToken(parser, PARSE_SAMELINE);
planepts[i][j] = atof(parser->token);
}
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, ")"))
goto parse_error;
}
return;
parse_error:
Error("line %d: Invalid brush plane format", parser->linenum);
}
static void
ParseValve220TX(parser_t *parser, vec3_t axis[2], vec_t shift[2],
vec_t *rotate, vec_t scale[2])
{
int i, j;
for (i = 0; i < 2; i++) {
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, "["))
goto parse_error;
for (j = 0; j < 3; j++) {
ParseToken(parser, PARSE_SAMELINE);
axis[i][j] = atof(parser->token);
}
ParseToken(parser, PARSE_SAMELINE);
shift[i] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, "]"))
goto parse_error;
}
ParseToken(parser, PARSE_SAMELINE);
rotate[0] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
scale[0] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
scale[1] = atof(parser->token);
return;
parse_error:
Error("line %d: couldn't parse Valve220 texture info", parser->linenum);
}
static void
ParseBrushPrimTX(parser_t *parser, vec3_t texMat[2])
{
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, "("))
goto parse_error;
for (int i = 0; i < 2; i++) {
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, "("))
goto parse_error;
for (int j = 0; j < 3; j++) {
ParseToken(parser, PARSE_SAMELINE);
texMat[i][j] = atof(parser->token);
}
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, ")"))
goto parse_error;
}
ParseToken(parser, PARSE_SAMELINE);
if (strcmp(parser->token, ")"))
goto parse_error;
return;
parse_error:
Error("line %d: couldn't parse Brush Primitives texture info", parser->linenum);
}
static void
ParseTextureDef(parser_t *parser, const mapbrush_t *brush, mtexinfo_t *tx,
vec3_t planepts[3], const plane_t *plane)
{
vec3_t texMat[2];
vec3_t axis[2];
vec_t shift[2], rotate, scale[2];
texcoord_style_t tx_type;
int width, height;
memset(tx, 0, sizeof(*tx));
if (brush->format == brushformat_t::BRUSH_PRIMITIVES) {
ParseBrushPrimTX(parser, texMat);
tx_type = TX_BRUSHPRIM;
ParseToken(parser, PARSE_SAMELINE);
tx->miptex = FindMiptex(parser->token);
EnsureTexturesLoaded();
const texture_t *texture = WADList_GetTexture(parser->token);
width = texture ? texture->width : 64;
height = texture ? texture->height : 64;
// throw away 3 extra values at end of line
ParseExtendedTX(parser);
} else if (brush->format == brushformat_t::NORMAL) {
ParseToken(parser, PARSE_SAMELINE);
tx->miptex = FindMiptex(parser->token);
ParseToken(parser, PARSE_SAMELINE);
if (!strcmp(parser->token, "[")) {
parser->unget = true;
ParseValve220TX(parser, axis, shift, &rotate, scale);
tx_type = TX_VALVE_220;
} else {
shift[0] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
shift[1] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
rotate = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
scale[0] = atof(parser->token);
ParseToken(parser, PARSE_SAMELINE);
scale[1] = atof(parser->token);
tx_type = ParseExtendedTX(parser);
}
}
if (!planepts || !plane)
return;
switch (tx_type) {
case TX_QUARK_TYPE1:
case TX_QUARK_TYPE2:
SetTexinfo_QuArK(parser, &planepts[0], tx_type, tx);
break;
case TX_VALVE_220:
SetTexinfo_Valve220(axis, shift, scale, tx);
break;
case TX_BRUSHPRIM:
SetTexinfo_BrushPrimitives(texMat, plane->normal, width, height, tx);
break;
case TX_QUAKED:
default:
SetTexinfo_QuakeEd(plane, shift, rotate, scale, tx);
break;
}
}
static std::unique_ptr<mapface_t>
ParseBrushFace(parser_t *parser, const mapbrush_t *brush, const mapentity_t *entity)
{
vec3_t planepts[3], planevecs[2];
vec_t length;
plane_t *plane;
mtexinfo_t tx;
int i, j;
std::unique_ptr<mapface_t> face { new mapface_t };
face->linenum = parser->linenum;
ParsePlaneDef(parser, planepts);
/* calculate the normal/dist plane equation */
VectorSubtract(planepts[0], planepts[1], planevecs[0]);
VectorSubtract(planepts[2], planepts[1], planevecs[1]);
plane = &face->plane;
CrossProduct(planevecs[0], planevecs[1], plane->normal);
length = VectorNormalize(plane->normal);
plane->dist = DotProduct(planepts[1], plane->normal);
ParseTextureDef(parser, brush, &tx, planepts, plane);
if (length < NORMAL_EPSILON) {
Message(msgWarning, warnNoPlaneNormal, parser->linenum);
return nullptr;
}
// ericw -- round texture vector values that are within ZERO_EPSILON of integers,
// to attempt to attempt to work around corrupted lightmap sizes in DarkPlaces
// (it uses 32 bit precision in CalcSurfaceExtents)
for (i = 0; i < 2; i++) {
for (j = 0; j < 4; j++) {
vec_t r = Q_rint(tx.vecs[i][j]);
if (fabs(tx.vecs[i][j] - r) < ZERO_EPSILON)
tx.vecs[i][j] = r;
}
}
face->texinfo = FindTexinfoEnt(&tx, entity);
return face;
}
mapbrush_t
ParseBrush(parser_t *parser, const mapentity_t *entity)
{
mapbrush_t brush;
// ericw -- brush primitives
if (!ParseToken(parser, PARSE_NORMAL))
Error("Unexpected EOF after { beginning brush");
if (!strcmp(parser->token, "(")) {
brush.format = brushformat_t::NORMAL;
parser->unget = true;
} else {
brush.format = brushformat_t::BRUSH_PRIMITIVES;
// optional
if (!strcmp(parser->token, "brushDef")) {
if (!ParseToken(parser, PARSE_NORMAL))
Error("Brush primitives: unexpected EOF (nothing after brushDef)");
}
// mandatory
if (strcmp(parser->token, "{"))
Error("Brush primitives: expected second { at beginning of brush, got \"%s\"", parser->token);
}
// ericw -- end brush primitives
while (ParseToken(parser, PARSE_NORMAL)) {
if (!strcmp(parser->token, "}"))
break;
std::unique_ptr<mapface_t> face = ParseBrushFace(parser, &brush, entity);
if (face.get() == nullptr)
continue;
/* Check for duplicate planes */
for (int i = 0; i<brush.numfaces; i++) {
const mapface_t &check = brush.face(i);
if (PlaneEqual(&check.plane, &face->plane)) {
Message(msgWarning, warnBrushDuplicatePlane, parser->linenum);
continue;
}
if (PlaneInvEqual(&check.plane, &face->plane)) {
/* FIXME - this is actually an invalid brush */
Message(msgWarning, warnBrushDuplicatePlane, parser->linenum);
continue;
}
}
/* Save the face, update progress */
if (0 == brush.numfaces)
brush.firstface = map.faces.size();
brush.numfaces++;
map.faces.push_back(*face);
}
// ericw -- brush primitives - there should be another closing }
if (brush.format == brushformat_t::BRUSH_PRIMITIVES) {
if (!ParseToken(parser, PARSE_NORMAL))
Error("Brush primitives: unexpected EOF (no closing brace)");
if (strcmp(parser->token, "}"))
Error("Brush primitives: Expected }, got: %s", parser->token);
}
// ericw -- end brush primitives
return brush;
}
static bool
ParseEntity(parser_t *parser, mapentity_t *entity)
{
if (!ParseToken(parser, PARSE_NORMAL))
return false;
if (strcmp(parser->token, "{"))
Error("line %d: Invalid entity format, { not found", parser->linenum);
entity->nummapbrushes = 0;
do {
if (!ParseToken(parser, PARSE_NORMAL))
Error("Unexpected EOF (no closing brace)");
if (!strcmp(parser->token, "}"))
break;
else if (!strcmp(parser->token, "{")) {
mapbrush_t brush = ParseBrush(parser, entity);
if (0 == entity->nummapbrushes)
entity->firstmapbrush = map.brushes.size();
entity->nummapbrushes++;
map.brushes.push_back(brush);
} else
ParseEpair(parser, entity);
} while (1);
return true;
}
/*
* Special world entities are entities which have their brushes added to the
* world before being removed from the map. Currently func_detail and
* func_group.
*/
static bool
IsWorldBrushEntity(const mapentity_t *entity)
{
const char *classname = ValueForKey(entity, "classname");
if (!Q_strcasecmp(classname, "func_detail"))
return true;
if (!Q_strcasecmp(classname, "func_group"))
return true;
return false;
}
void
LoadMapFile(void)
{
parser_t parser;
char *buf;
int length;
Message(msgProgress, "LoadMapFile");
length = LoadFile(options.szMapName, &buf, true);
ParserInit(&parser, buf);
for (int i=0; ; i++) {
map.entities.push_back(mapentity_t {});
mapentity_t *entity = &map.entities.at(i);
if (!ParseEntity(&parser, entity)) {
break;
}
}
FreeMem(buf, OTHER, length + 1);
// Print out warnings for entities
if (!(rgfStartSpots & info_player_start))
Message(msgWarning, warnNoPlayerStart);
if (!(rgfStartSpots & info_player_deathmatch))
Message(msgWarning, warnNoPlayerDeathmatch);
// if (!(rgfStartSpots & info_player_coop))
// Message(msgWarning, warnNoPlayerCoop);
Message(msgStat, "%8d faces", map.numfaces());
Message(msgStat, "%8d brushes", map.numbrushes());
Message(msgStat, "%8d entities", map.numentities());
Message(msgStat, "%8d unique texnames", map.nummiptex());
Message(msgStat, "%8d texinfo", map.numtexinfo());
Message(msgLiteral, "\n");
}
void
PrintEntity(const mapentity_t *entity)
{
epair_t *epair;
for (epair = entity->epairs; epair; epair = epair->next)
Message(msgStat, "%20s : %s", epair->key, epair->value);
}
const char *
ValueForKey(const mapentity_t *entity, const char *key)
{
const epair_t *ep;
for (ep = entity->epairs; ep; ep = ep->next)
if (!Q_strcasecmp(ep->key, key))
return ep->value;
return "";
}
void
SetKeyValue(mapentity_t *entity, const char *key, const char *value)
{
epair_t *ep;
for (ep = entity->epairs; ep; ep = ep->next)
if (!Q_strcasecmp(ep->key, key)) {
free(ep->value); /* FIXME */
ep->value = copystring(value);
return;
}
ep = (epair_t *)AllocMem(OTHER, sizeof(epair_t), true);
ep->next = entity->epairs;
entity->epairs = ep;
ep->key = copystring(key);
ep->value = copystring(value);
}
void
GetVectorForKey(const mapentity_t *entity, const char *szKey, vec3_t vec)
{
const char *value;
double v1, v2, v3;
value = ValueForKey(entity, szKey);
v1 = v2 = v3 = 0;
// scanf into doubles, then assign, so it is vec_t size independent
sscanf(value, "%lf %lf %lf", &v1, &v2, &v3);
vec[0] = v1;
vec[1] = v2;
vec[2] = v3;
}
void
WriteEntitiesToString(void)
{
char *pCur;
epair_t *ep;
int i;
int cLen;
struct lumpdata *entities;
mapentity_t *entity;
map.cTotal[LUMP_ENTITIES] = 0;
for (i = 0; i < map.numentities(); i++) {
entity = &map.entities.at(i);
entities = &entity->lumps[LUMP_ENTITIES];
/* Check if entity needs to be removed */
if (!entity->epairs || IsWorldBrushEntity(entity)) {
entities->count = 0;
entities->data = NULL;
continue;
}
cLen = 0;
for (ep = entity->epairs; ep; ep = ep->next) {
int i = strlen(ep->key) + strlen(ep->value) + 6;
cLen += i;
}
// Add 4 for {\n and }\n
cLen += 4;
entities->count = cLen;
map.cTotal[LUMP_ENTITIES] += cLen;
entities->data = pCur = (char *)AllocMem(BSP_ENT, cLen, true);
*pCur = 0;
strcat(pCur, "{\n");
pCur += 2;
for (ep = entity->epairs; ep; ep = ep->next) {
// Limit on Quake's strings of 128 bytes
// TODO: Warn when limit is exceeded
int chars_printed = sprintf(pCur, "\"%s\" \"%s\"\n", ep->key, ep->value);
pCur += chars_printed;
}
// No terminating null on this string
pCur[0] = '}';
pCur[1] = '\n';
}
}
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