Added in an attempt at supporting V8

This commit is contained in:
2017-04-05 05:38:54 -07:00
parent 7558e40058
commit e7a3bc2d63
2 changed files with 319 additions and 0 deletions

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//
// Author: Michael Cameron
// Email: chronokun@hotmail.com
//
// Libraries Include
#include "libraries.h"
// This Include
#include "v8mapparser.h"
#ifndef _MSC_VER
/*
str*_s functions are microsoft only extensions of C string manip.
mingw is ok with strtok_r, but is not ok with strcpy_r
additionally, old versions of mingw may not be ok with strtok_r at all.
*/
inline char *strtok_s(char* s, const char* delm, char** context) {
return strtok_r(s, delm, context);
}
inline char *strcpy_s(char *dest, const char *src) {
return strcpy(dest, src);
}
#endif
const bool CMapParser::LoadMap(const char* _kpcFileName)
{
std::ifstream InFile;
EParserState eState = PARSERSTATE_UNKNOWN;
InFile.open(_kpcFileName, std::ios::in);
if(InFile.is_open())
{
std::string Line;
bool bAdvance = true;
bool bGoing = true;
while(bGoing)
{
if(bAdvance)
{
if(!std::getline(InFile, Line))
{
bGoing = false;
}
}
bAdvance = true;
if(eState == PARSERSTATE_UNKNOWN)
{
if(strcmp(Line.c_str(), "entity") == 0)
{
eState = PARSERSTATE_ENTITY;
continue;
} else if (Line.compare("prefab") == 0 || Line.compare("global") == 0) {
// prefab and global share an indentation level
// both encapsulate similar objects
eState = PARSERSTATE_PREFAB;
continue;
}
} else if (eState == PARSERSTATE_PREFAB) {
eState = this->ParsePrefab(Line);
}
else if(eState == PARSERSTATE_ENTITY)
{
eState = this->ParseEntity(Line);
}
else if(eState == PARSERSTATE_WORLDSPAWN)
{
eState = this->ParseWorldSpawn(Line);
}
else if(eState == PARSERSTATE_BRUSH)
{
eState = this->ParseBrush(Line);
//bAdvance = false;
}
else if(eState == PARSERSTATE_VERTEX)
{
eState = this->ParseVertex(Line);
if(eState != PARSERSTATE_VERTEX)
{
bAdvance = false;
}
}
else if(eState == PARSERSTATE_FACE)
{
eState = this->ParseFace(Line);
if(eState != PARSERSTATE_FACE)
{
bAdvance = false;
}
}
}
InFile.close();
}
else
{
return(false);
}
return(true);
}
EParserState CMapParser::ParsePrefab(const std::string _Line) {
// this is going with the idea that its possible to correctly parse the map file
// if prefabs are simply broken and de-indented.
// typically entities are listed first, then brushes, but just in case.
if (_Line.compare("entity") == 0) {
return PARSERSTATE_ENTITY;
} else {
return PARSERSTATE_BRUSH;
}
}
EParserState CMapParser::ParseEntity(const std::string _Line)
{
const size_t kszLineSize = 256;
char pcLine[kszLineSize];
const char* kpcDelim = " ";
char* pcToken;
char* pcContext;
strcpy_s(pcLine, _Line.c_str());
pcToken = strtok_s(pcLine, kpcDelim, &pcContext);
while(pcToken != nullptr)
{
if(strcmp(pcToken, "\ttype") == 0)
{
pcToken = strtok_s(nullptr, kpcDelim, &pcContext);
if(strcmp(pcToken, "WorldSpawn") == 0)
{
return(PARSERSTATE_WORLDSPAWN);
}
else
{
return(PARSERSTATE_UNKNOWN);
}
}
else
{
return(PARSERSTATE_ENTITY);
}
}
return(PARSERSTATE_UNKNOWN);
}
EParserState CMapParser::ParseWorldSpawn(const std::string _Line)
{
if(strcmp(_Line.c_str(), "brush") == 0)
{
this->m_WorldSpawn.m_Brushes.push_back(TBrush());
return(PARSERSTATE_BRUSH);
}
return(PARSERSTATE_WORLDSPAWN);
}
EParserState CMapParser::ParseBrush(const std::string _Line)
{
if(strcmp(_Line.c_str(), "brush") == 0)
{
this->m_WorldSpawn.m_Brushes.push_back(TBrush());
return(PARSERSTATE_BRUSH);
}
if(strcmp(_Line.c_str(), "\tvertices") == 0)
{
return(PARSERSTATE_VERTEX);
}
else if(strcmp(_Line.c_str(), "\tfaces") == 0)
{
return(PARSERSTATE_FACE);
}
return(PARSERSTATE_BRUSH);
}
EParserState CMapParser::ParseVertex(const std::string _Line)
{
const size_t kszLineSize = 2048;
char pcLine[kszLineSize];
const char* kpcDelim = " \t";
char* pcToken;
char* pcContext;
strcpy_s(pcLine, _Line.c_str());
pcToken = strtok_s(pcLine, kpcDelim, &pcContext);
Eigen::Vector3f Vert;
int iTokenNum = 0;
while(pcToken != nullptr)
{
if(std::isdigit(pcToken[0], std::locale()) || pcToken[0] == '-')
{
double dValue = std::stod(pcToken);
if(iTokenNum == 0)
{
Vert[X] = (float)dValue;
}
else if(iTokenNum == 1)
{
Vert[Y] = (float)dValue;
}
else if(iTokenNum == 2)
{
Vert[Z] = (float)dValue;
}
iTokenNum++;
}
else
{
return(PARSERSTATE_BRUSH);
}
pcToken = strtok_s(nullptr, kpcDelim, &pcContext);
}
this->m_WorldSpawn.m_Brushes[this->m_WorldSpawn.m_Brushes.size()-1].m_Vertices.push_back(Vert);
return(PARSERSTATE_VERTEX);
}
EParserState CMapParser::ParseFace(const std::string _Line)
{
const size_t kszLineSize = 2048;
char pcLine[kszLineSize];
const char* kpcDelim = " \t";
char* pcToken;
char* pcContext;
strcpy_s(pcLine, _Line.c_str());
pcToken = strtok_s(pcLine, kpcDelim, &pcContext);
int iTokenNum = 0;
std::string material;
std::vector<int> Indices;
while(pcToken != nullptr)
{
if(iTokenNum < 5)
{
if(std::isdigit(pcToken[0], std::locale()) || pcToken[0] == '-')
{
double dValue = std::stod(pcToken);
}
else
{
return(PARSERSTATE_BRUSH);
}
} else if (iTokenNum == 9) {
// this should be '0x' something, which wasn't in V6.
;
}
else
{
if(std::isdigit(pcToken[0], std::locale()) || pcToken[0] == '-')
{
int iValue = std::stoi(pcToken);
Indices.push_back(iValue);
}
else
{
material = pcToken;
}
}
iTokenNum++;
pcToken = strtok_s(nullptr, kpcDelim, &pcContext);
}
TFace Face;
Face.m_Indices = Indices;
Face.m_Material = material;
this->m_WorldSpawn.m_Brushes[this->m_WorldSpawn.m_Brushes.size()-1].m_Faces.push_back(Face);
return(PARSERSTATE_FACE);
}

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//
// Author: Michael Cameron
// Email: chronokun@hotmail.com
//
#pragma once
#ifndef __V8MAPPARSER_H__
#define __V8MAPPARSER_H__
// Includes
#include "worldspawn.h"
// enums
enum EParserState
{
PARSERSTATE_UNKNOWN,
PARSERSTATE_ENTITY,
PARSERSTATE_WORLDSPAWN,
PARSERSTATE_BRUSH,
PARSERSTATE_VERTEX,
PARSERSTATE_FACE,
PARSERSTATE_PREFAB
};
class CMapParser
{
// Variables
public:
TWorldSpawn m_WorldSpawn;
// Functions
public:
const bool LoadMap(const char* _kpcFileName);
protected:
EParserState ParsePrefab(const std::string _Line);
EParserState ParseEntity(const std::string _Line);
EParserState ParseWorldSpawn(const std::string _Line);
EParserState ParseBrush(const std::string _Line);
EParserState ParseVertex(const std::string _Line);
EParserState ParseFace(const std::string _Line);
EParserState ParsePrefab(const std::string _Line);
};
#endif