Initial commit

engines/bladerunner/game_flags.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.
+ *
+ * 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 "bladerunner/game_flags.h"
+
+#include "bladerunner/savefile.h"
+
+#include "common/debug.h"
+
+namespace BladeRunner {
+
+GameFlags::GameFlags()
+	: _flags(nullptr), _flagCount(0) {
+}
+
+GameFlags::~GameFlags() {
+	delete[] _flags;
+}
+
+void GameFlags::clear() {
+	for (int i = 0; i <= _flagCount; ++i) {
+		reset(i);
+	}
+}
+
+void GameFlags::setFlagCount(int count) {
+	assert(count > 0);
+
+	_flagCount = count;
+	_flags = new uint32[count / 32 + 1]();
+
+	clear();
+}
+
+void GameFlags::set(int flag) {
+	assert(flag >= 0 && flag <= _flagCount);
+
+	_flags[flag / 32] |= (1 << (flag % 32));
+}
+
+void GameFlags::reset(int flag) {
+	assert(flag >= 0 && flag <= _flagCount);
+
+	_flags[flag / 32] &= ~(1 << (flag % 32));
+}
+
+bool GameFlags::query(int flag) const {
+	//debug("GameFlags::query(%d): %d", flag, !!(flags[flag / 32] & (1 << (flag % 32))));
+	assert(flag >= 0 && flag <= _flagCount);
+
+	return !!(_flags[flag / 32] & (1 << (flag % 32)));
+}
+
+void GameFlags::save(SaveFileWriteStream &f) {
+	for (int i = 0; i != _flagCount / 32 + 1; ++i) {
+		f.writeUint32LE(_flags[i]);
+	}
+}
+
+void GameFlags::load(SaveFileReadStream &f) {
+	for (int i = 0; i != _flagCount / 32 + 1; ++i) {
+		_flags[i] = f.readUint32LE();
+	}
+}
+
+} // End of namespace BladeRunner