Now using stacks to keep track of multiple levels when parsing location scripts.

svn-id: r28639

1 files changed, 27 insertions, 0 deletions

diff --git a/engines/parallaction/parallaction.cpp b/engines/parallaction/parallaction.cpp
index b2893ebfca..af0a34e409 100644
--- a/engines/parallaction/parallaction.cpp
+++ b/engines/parallaction/parallaction.cpp
@@ -849,6 +849,30 @@ int Table::lookup(const char* s) {
 	return notFound;
 }
 
+void Parallaction::pushParserTables(const Opcode* opcodes, Table *statements) {
+
+	_opcodes.push(_currentOpcodes);
+	_statements.push(_currentStatements);
+
+	_currentOpcodes = opcodes;
+	_currentStatements = statements;
+
+}
+
+void Parallaction::popParserTables() {
+	assert(_opcodes.size() > 0);
+
+	_currentOpcodes = _opcodes.pop();
+	_currentStatements = _statements.pop();
+}
+
+void Parallaction::parseStatement() {
+	assert(_currentOpcodes != 0);
+
+	_lookup = _currentStatements->lookup(_tokens[0]);
+	(this->*(_currentOpcodes[_lookup]))();
+}
+
 void Parallaction::initOpcodes() {
 
 	static const Opcode op0[] = {
@@ -998,6 +1022,9 @@ void Parallaction::initOpcodes() {
 
 	_locationAnimParsers = op6;
 
+	_currentOpcodes = 0;
+	_currentStatements = 0;
+
 }
 
 } // namespace Parallaction