void Scene::_parseOrthographicCamera( ){
float position[3], lookAt[3], up[3];
_checkToken( "OrthographicCamera" );
_nextToken( );
_checkToken( "{" );
_nextToken( );
_checkToken( "position" );
for( int i = 0; i < 3; i++ ){
_nextToken( );
position[i] = _parseFloat( );
}
Point3 pPosition(position);
_nextToken( );
_checkToken( "lookAt" );
for( int i = 0; i < 3; i++ ){
_nextToken( );
lookAt[i] = _parseFloat( );
}
Point3 pLookAt(lookAt);
_nextToken( );
_checkToken( "up" );
for( int i = 0; i < 3; i++ ){
_nextToken( );
up[i] = _parseFloat( );
}
Vec3 vUp(up);
_nextToken( );
_checkToken( "}" );
// Fill me in!
}
void ConfigLoader::_skipNewLines(std::ifstream &stream)
{
while (tok == TOKEN_NewLine)
{
_nextToken(stream);
}
}
void ScriptLoader::_skipNewLines(std::ifstream &stream)
{
while (mToken == TOKEN_NewLine)
{
_nextToken(stream);
}
}
void Scene::_parseBackground( ){
unsigned char vec[3];
_nextToken( );
_checkToken( "Background" );
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken( "color" );
for( int i = 0; i < 3; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
_nextToken( );
_checkToken( "}" );
// Fill me in!
}
void Scene::_parseCamera( ){
_nextToken( );
if( std::strcmp( _currentToken, "OrthographicCamera") == 0 ){
_parseOrthographicCamera( );
}else if( std::strcmp( _currentToken, "PerspectiveCamera") == 0 ){
_parsePerspectiveCamera( );
}else if( std::strcmp( _currentToken, "SimplePerspectiveCamera") == 0 ){
_parseSimplePerspectiveCamera( );
}else{
_checkToken( "OrthographicCamera | PerspectiveCamera | SimplePerspectiveCamera");
}
}
int Lexer::lex()
{
if (_recallToken)
{
_recallToken = false;
}
else
{
_lastToken = _nextToken();
}
return _lastToken.type;
}
void Scene::_parseMaterials( ){
_nextToken( );
_checkToken( "Materials" );
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken( "numMaterials" );
_nextToken( );
int materialCount = _parseInt( );
for( int i = 0; i < materialCount; i++ ){
_nextToken( );
if( std::strcmp( _currentToken, "PhongMaterial") == 0 ){
_parsePhongMaterial(i);
}else if( std::strcmp( _currentToken, "SomeOtherMaterial") == 0 ){
assert(0 == 1);
}else if( std::strcmp( _currentToken, "AnotherMaterial") == 0 ){
assert(0 == 1);
}else{
_checkToken( "PhongMaterial | tbd");
}
}
_nextToken( );
_checkToken("}");
}
void Scene::_parseLights( ){
_nextToken( );
_checkToken( "Lights" );
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken( "numLights" );
_nextToken( );
int lightCount = _parseInt( );
for( int i = 0; i < lightCount; i++ ){
_nextToken( );
if( std::strcmp( _currentToken, "PointLight") == 0 ){
_parsePointLight(i);
}else if( std::strcmp( _currentToken, "DirectionalLight") == 0 ){
_parseDirectionalLight(i);
}else if( std::strcmp( _currentToken, "SomeOtherLight") == 0 ){
assert(0 == 1);
}else{
_checkToken("PointLight | DirectionalLight");
}
}
_nextToken( );
_checkToken("}");
}
void Scene::_parsePhongMaterial(uint id){
float vec[4];
_checkToken( "PhongMaterial");
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken("ambientColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor ambient(vec);
_nextToken( );
_checkToken( "diffuseColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor diffuse(vec);
_nextToken( );
_checkToken("specularColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor specular(vec);
_nextToken( );
_checkToken("shininess");
float shininess = _parseFloat( );
_nextToken( );
float indexOfRefraction = 10;
if( std::strcmp(_currentToken, "indexOfRefraction") == 0 ){
indexOfRefraction = _parseFloat( );
}
_nextToken( );
_checkToken( "}");
// Fill me in!
}
void ConfigLoader::parseScript(std::ifstream &stream)
{
//Get first token
_nextToken(stream);
if (tok == TOKEN_EOF)
{
stream.close();
return;
}
//Parse the script
_parseNodes(stream, 0);
stream.close();
}
void Scene::_parseSphere(int i){
float vec[3];
_checkToken( "Sphere");
_nextToken( );
_checkToken( "{" );
_nextToken( );
_checkToken( "center" );
for( int i = 0; i < 3; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
Point3 center(vec[0], vec[1], vec[2]);
_nextToken( );
_checkToken( "radius" );
_nextToken( );
float radius = _parseFloat( );
_nextToken( );
_checkToken("}");
// Fill me in!
}
void Scene::_parseGroup( ){
_nextToken( );
_checkToken( "Group" );
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken( "numObjects" );
_nextToken( );
int objectCount = _parseInt( );
int i = 0;
_nextToken( );
while( i < objectCount ){
if( std::strcmp( _currentToken, "MaterialIndex") == 0 ){
_parseMaterialIndex( );
}else if( std::strcmp( _currentToken, "Group") == 0 ){
assert(0 == 1);
_parseGroup( );
i += 1;
}else if( std::strcmp( _currentToken, "Transform") == 0 ){
assert(0 == 1);
}else if( std::strcmp( _currentToken, "Sphere") == 0 ){
_parseSphere(i);
i += 1;
}else if( std::strcmp( _currentToken, "Plane") == 0 ){
assert(0 == 1);
i += 1;
}else if( std::strcmp( _currentToken, "Triangle") == 0 ){
assert(0 == 1);
i += 1;
}else if( std::strcmp( _currentToken, "TriangleMesh") == 0 ){
assert(0 == 1);
i += 1;
}else{
_checkToken( "Group | tbd");
}
_nextToken( );
}
}
void ConfigLoader::_parseNodes(std::ifstream &stream, ConfigNode *parent)
{
typedef std::pair<std::string, ConfigNode*> ScriptItem;
while (true)
{
switch (tok)
{
//Node
case TOKEN_Text:
//Add the new node
ConfigNode *newNode;
if (parent)
{
newNode = parent->addChild(tokVal);
}
else
{
newNode = new ConfigNode(0, tokVal);
}
//Get values
_nextToken(stream);
while (tok == TOKEN_Text)
{
newNode->addValue(tokVal);
_nextToken(stream);
}
//Add root nodes to scriptList
if (!parent){
std::string key;
if (newNode->getValues().empty())
{
key = newNode->getName() + ' ';
}
else
{
key = newNode->getName() + ' ' + newNode->getValues().front();
}
m_scriptList.insert(ScriptItem(key, newNode));
}
_skipNewLines(stream);
//Add any sub-nodes
if (tok == TOKEN_OpenBrace)
{
//Parse nodes
_nextToken(stream);
_parseNodes(stream, newNode);
//Check for matching closing brace
if (tok != TOKEN_CloseBrace)
{
throw std::runtime_error("Parse Error: Expecting closing brace");
}
_nextToken(stream);
_skipNewLines(stream);
}
break;
//Out of place brace
case TOKEN_OpenBrace:
throw std::runtime_error("Parse Error: Opening brace out of plane");
break;
//Return if end of nodes have been reached
case TOKEN_CloseBrace:
return;
//Return if reached end of file
case TOKEN_EOF:
return;
case TOKEN_NewLine:
_nextToken(stream);
break;
}
};
}
void ScriptLoader::_parseNodes(std::ifstream &stream, ScriptNode *parent)
{
typedef std::pair<std::string, ScriptNode*> ScriptItem;
while (true)
{
switch (mToken)
{
//Node
case TOKEN_Text:
{
//Add the new node
ScriptNode *newNode;
if (parent)
{
newNode = parent->addChild(mTokenValue);
}
else
{
newNode = new ScriptNode(0, mTokenValue);
}
//Get values
_nextToken(stream);
std::string valueStr;
int i=0;
while (mToken == TOKEN_Text)
{
if (i == 0)
valueStr += mTokenValue;
else
valueStr += " " + mTokenValue;
_nextToken(stream);
++i;
}
newNode->setValue(valueStr);
//Add root nodes to scriptList
if (!parent)
{
std::string key;
if (newNode->getValue() == "")
throw std::runtime_error("Root node must have a name (\"" + newNode->getName() + "\")");
key = newNode->getValue();
m_scriptList.insert(ScriptItem(key, newNode));
}
_skipNewLines(stream);
//Add any sub-nodes
if (mToken == TOKEN_OpenBrace)
{
//Parse nodes
_nextToken(stream);
_parseNodes(stream, newNode);
//Check for matching closing brace
if (mToken != TOKEN_CloseBrace)
{
throw std::runtime_error("Parse Error: Expecting closing brace");
}
_nextToken(stream);
_skipNewLines(stream);
}
newNode->mFileName = mCurrentFileName;
break;
}
//Out of place brace
case TOKEN_OpenBrace:
throw std::runtime_error("Parse Error: Opening brace out of plane");
break;
//Return if end of nodes have been reached
case TOKEN_CloseBrace:
return;
//Return if reached end of file
case TOKEN_EOF:
return;
case TOKEN_NewLine:
_nextToken(stream);
break;
}
};
}
void Scene::_parseMaterialIndex( ){
_checkToken( "MaterialIndex");
_nextToken( );
_currentMaterialIndex = _parseInt( );
}
/*
* nextToken - fetch the next real token from the buffer
*/
static token nextToken( void )
{
int j;
char *endptr;
currToken = _nextToken();
if( currToken == T_UNKNOWN ) {
currToken = T_CONSTANT;
if( isdigit( tokenBuff[0] ) ) {
constantVal = strtol( tokenBuff, &endptr, 10 );
if( (endptr - tokenBuff) != tokenBuffCnt ) {
constantVal = strtol( tokenBuff, &endptr, 16 );
if( (endptr - tokenBuff) != tokenBuffCnt ) {
abortExpr( ERR_INVALID_VALUE );
}
}
} else {
if( tokenBuff[0] == '.' ) {
strcpy( tokenBuff, GetASetVal( &tokenBuff[1] ) );
constantVal = strtol( tokenBuff, NULL, 0 );
j = tokenBuffCnt - 1;
while( j >= 0 ) {
if( !isdigit( tokenBuff[j] ) ) {
currToken = T_STRING;
break;
}
j--;
}
} else if( !strcmp( tokenBuff, "config" ) ) {
constantVal = EditFlags.Color * 100 + EditFlags.BlackAndWhite * 10 +
EditFlags.Monocolor;
} else if( !strcmp( tokenBuff, "rdonly" ) ) {
constantVal = CFileReadOnly();
} else if( !strcmp( tokenBuff, "lastrc" ) ) {
constantVal = (long)LastRC;
} else if( !strcmp( tokenBuff, "pagelen" ) ) {
constantVal = EditVars.WindMaxHeight;
} else if( !strcmp( tokenBuff, "endcolumn" ) ) {
constantVal = EditVars.WindMaxWidth;
} else if( !strcmp( tokenBuff, "numundos" ) ) {
if( UndoStack == NULL ) {
constantVal = 0;
} else {
constantVal = UndoStack->current + 1;
}
} else if( !strcmp( tokenBuff, "numredos" ) ) {
if( UndoUndoStack == NULL ) {
constantVal = 0;
} else {
constantVal = UndoUndoStack->current + 1;
}
} else if( !strcmp( tokenBuff, "hassel" ) ) {
constantVal = SelRgn.selected;
} else if( !strcmp( tokenBuff, "hasfile" ) ) {
constantVal = (CurrentFile != NULL);
} else if( !strncmp( tokenBuff, "emptybuf", 8 ) ) {
j = tokenBuff[8];
constantVal = IsEmptySavebuf( j );
} else if( (j = Tokenize( colorTokens, tokenBuff, true )) != TOK_INVALID ) {
constantVal = j;
#ifdef __WIN__
} else if( (j = Tokenize( ddeTokens, tokenBuff, true )) != TOK_INVALID ) {
constantVal = ddeNums[j];
#endif
} else {
ReadErrorTokens();
j = Tokenize( ErrorTokens, tokenBuff, true );
if( j != TOK_INVALID ) {
constantVal = ErrorValues[j];
} else {
currToken = T_STRING;
}
}
}
}
return( currToken );
} /* nextToken */
void Scene::_parsePointLight(uint id){
float vec[4];
_checkToken( "PointLight");
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken("position");
for( int i = 0; i < 3; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
Point3 position(vec);
_nextToken( );
_checkToken("ambientColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor ambient(vec);
_nextToken( );
_checkToken( "diffuseColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor diffuse(vec);
_nextToken( );
_checkToken("specularColor");
for( int i = 0; i < 4; i++ ){
_nextToken( );
vec[i] = _parseFloat( );
}
RGBAColor specular(vec);
_nextToken( );
_checkToken("constant_attenuation");
_nextToken( );
float constant_attenuation = _parseFloat( );
_nextToken( );
_checkToken("linear_attenuation");
_nextToken( );
float linear_attenuation = _parseFloat( );
_nextToken( );
_checkToken("quadratic_attenuation");
_nextToken( );
float quadratic_attenuation = _parseFloat( );
_nextToken( );
_checkToken( "}");
// Fill me in!
}
void Scene::_parseViewPlane( ){
size_t w, h, s;
double p;
_nextToken( );
_checkToken( "ViewPlane");
_nextToken( );
_checkToken( "{");
_nextToken( );
_checkToken( "width");
_nextToken( );
w = _parseInt( );
_nextToken( );
_checkToken( "height" );
_nextToken( );
h = _parseInt( );
_nextToken( );
_checkToken( "pixelsize" );
_nextToken( );
p = _parseFloat( );
_nextToken( );
_checkToken( "sampleCount" );
_nextToken( );
s = _parseInt( );
_nextToken( );
_checkToken( "}" );
// Fill me in!
}