XEEN: Add original copy protection dialog

1 files changed, 100 insertions, 0 deletions

diff --git a/engines/xeen/dialogs/dialogs_copy_protection.cpp b/engines/xeen/dialogs/dialogs_copy_protection.cpp
new file mode 100644
index 0000000000..7788cb5a22
--- /dev/null
+++ b/engines/xeen/dialogs/dialogs_copy_protection.cpp
@@ -0,0 +1,100 @@
+/* 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.
+ *
+ */
+
+#include "xeen/dialogs/dialogs_copy_protection.h"
+#include "xeen/dialogs/dialogs_input.h"
+#include "xeen/resources.h"
+#include "xeen/xeen.h"
+
+namespace Xeen {
+
+bool CopyProtection::show(XeenEngine *vm) {
+	CopyProtection *dlg = new CopyProtection(vm);
+	int result = dlg->execute();
+	delete dlg;
+
+	return result;
+}
+
+CopyProtection::CopyProtection(XeenEngine *vm) : Input(vm, &(*vm->_windows)[11]) {
+	loadEntries();
+}
+
+bool CopyProtection::execute() {
+	EventsManager &events = *_vm->_events;
+	Sound &sound = *_vm->_sound;
+	Window &w = *_window;
+	bool result = false;
+	Common::String line;
+
+	// Choose a random entry
+	ProtectionEntry &protEntry = _entries[_vm->getRandomNumber(_entries.size() - 1)];
+	Common::String msg = Common::String::format(Res.WHATS_THE_PASSWORD,
+		protEntry._pageNum, protEntry._lineNum, protEntry._wordNum);
+
+	w.open();
+	w.writeString(msg);
+	w.update();
+
+	for (int tryNum = 0; tryNum < 3 && !_vm->shouldExit(); ++tryNum) {
+		line.clear();
+		if (getString(line, 20, 200, false) && !line.compareToIgnoreCase(protEntry._text)) {
+			sound.playFX(20);
+			result = true;
+			break;
+		}
+
+		sound.playFX(21);
+		w.writeString("\x3l\v040\n\x4""200");
+		w.writeString(Res.PASSWORD_INCORRECT);
+		w.update();
+
+		events.updateGameCounter();
+		events.wait(50, false);
+	}
+
+	w.close();
+	return result;
+}
+
+void CopyProtection::loadEntries() {
+	FileManager &files = *g_vm->_files;
+	File f(files._ccNum ? "timer.drv" : "cpstruct");
+	ProtectionEntry pe;
+	byte seed = 0;
+	char text[13];
+
+	while (f.pos() < f.size()) {
+		pe._pageNum = f.readByte() ^ seed++;
+		pe._lineNum = f.readByte() ^ seed++;
+		pe._wordNum = f.readByte() ^ seed++;
+
+		for (int idx = 0; idx < 13; ++idx)
+			text[idx] = f.readByte() ^ seed++;
+		text[12] = '\0';
+		pe._text = Common::String(text);
+
+		_entries.push_back(pe);
+	}
+}
+
+} // End of namespace Xeen