GLK: ALAN3: Initial files commit

1 files changed, 64 insertions, 0 deletions

diff --git a/engines/glk/alan3/set.h b/engines/glk/alan3/set.h
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+/* 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.
+ *
+ * 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.
+ *
+ */
+
+#ifndef GLK_ALAN3_SET
+#define GLK_ALAN3_SET
+
+/* Abstract datatype Set for Alan interpreter
+
+	A set is implemented as a struct holding a size and a
+	dynamically allocated array of members. Members can be
+	integers or instance numbers. Attributes of Set type is
+	allocated and the pointer to it is used as the attribute
+	value. As members are only references, clearing a set can
+	simply be done by setting the size to zero.
+*/
+
+#include "glk/alan3/acode.h"
+#include "glk/alan3/types.h"
+
+namespace Glk {
+namespace Alan3 {
+
+struct Set {
+  int size;
+  int allocated;
+  Aword *members;
+};
+
+extern Set *newSet(int size);
+extern void initSets(SetInitEntry *initTable);
+extern int setSize(Set *theSet);
+extern void clearSet(Set *theSet);
+extern Set *copySet(Set *theSet);
+extern Aword getSetMember(Set *theSet, Aint member);
+extern bool inSet(Set *theSet, Aword member);
+extern void addToSet(Set *theSet, Aword newMember);
+extern void removeFromSet(Set *theSet, Aword member);
+extern Set *setUnion(Set *theSet, Set *other);
+extern bool equalSets(Set *theSet, Set *other);
+extern void freeSet(Set *theSet);
+
+} // End of namespace Alan3
+} // End of namespace Glk
+
+#endif