Initial commit

engines/sword2/sync.cpp

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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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1994-1998 Revolution Software Ltd.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "common/textconsole.h"
+
+#include "sword2/sword2.h"
+#include "sword2/defs.h"
+#include "sword2/header.h"
+#include "sword2/logic.h"
+
+namespace Sword2 {
+
+/**
+ * Clear any syncs registered for this id. Call this just after the id has been
+ * processed. Theoretically there could be more than one sync waiting for us,
+ * so clear the lot.
+ */
+
+void Logic::clearSyncs(uint32 id) {
+	for (int i = 0; i < ARRAYSIZE(_syncList); i++) {
+		if (_syncList[i].id == id) {
+			debug(5, "removing sync %d for %d", i, id);
+			_syncList[i].id = 0;
+		}
+	}
+}
+
+void Logic::sendSync(uint32 id, uint32 sync) {
+	for (int i = 0; i < ARRAYSIZE(_syncList); i++) {
+		if (_syncList[i].id == 0) {
+			debug(5, "%d sends sync %d to %d", readVar(ID), sync, id);
+			_syncList[i].id = id;
+			_syncList[i].sync = sync;
+			return;
+		}
+	}
+
+	// The original code didn't even check for this condition, so maybe
+	// it should be a fatal error?
+
+	warning("No free sync slot");
+}
+
+/**
+ * Check for a sync waiting for this character. Called from fnAnim() to see if
+ * animation is to be finished. Returns an index into _syncList[], or -1.
+ */
+
+int Logic::getSync() {
+	uint32 id = readVar(ID);
+
+	for (int i = 0; i < ARRAYSIZE(_syncList); i++) {
+		if (_syncList[i].id == id)
+			return i;
+	}
+
+	return -1;
+}
+
+} // End of namespace Sword2