1 files changed, 78 insertions, 0 deletions
diff --git a/engines/pegasus/ai/ai_rule.cpp b/engines/pegasus/ai/ai_rule.cpp
new file mode 100644
index 0000000000..3aaa530a4a
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+++ b/engines/pegasus/ai/ai_rule.cpp
@@ -0,0 +1,78 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1995-1997 Presto Studios, Inc.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "common/stream.h"
+
+#include "pegasus/ai/ai_action.h"
+#include "pegasus/ai/ai_area.h"
+#include "pegasus/ai/ai_condition.h"
+#include "pegasus/ai/ai_rule.h"
+
+namespace Pegasus {
+
+bool AIRule::fireRule() {
+	if (_ruleActive && _ruleCondition && _ruleAction && _ruleCondition->fireCondition()) {
+		if (g_AIArea)
+			g_AIArea->lockAIOut();
+
+		_ruleAction->performAIAction(this);
+
+		if (--_ruleAction->_actionCount <= 0)
+			deactivateRule();
+
+		if (g_AIArea)
+			g_AIArea->unlockAI();
+
+		return true;
+	}
+
+	return false;
+}
+
+void AIRule::writeAIRule(Common::WriteStream *stream) {
+	stream->writeByte(_ruleActive);
+
+	if (_ruleCondition)
+		_ruleCondition->writeAICondition(stream);
+}
+
+void AIRule::readAIRule(Common::ReadStream *stream) {
+	_ruleActive = stream->readByte();
+
+	if (_ruleCondition)
+		_ruleCondition->readAICondition(stream);
+}
+
+void AIRuleList::writeAIRules(Common::WriteStream *stream) {
+	for (AIRuleList::iterator it = begin(); it != end(); it++)
+		(*it)->writeAIRule(stream);
+}
+
+void AIRuleList::readAIRules(Common::ReadStream *stream) {
+	for (AIRuleList::iterator it = begin(); it != end(); it++)
+		(*it)->readAIRule(stream);
+}
+
+} // End of namespace Pegasus