CHEWY: Initial support for in-game texts (game dialog texts)

1 files changed, 105 insertions, 0 deletions

diff --git a/engines/chewy/text.h b/engines/chewy/text.h
new file mode 100644
index 0000000000..fe3e1da8b9
--- /dev/null
+++ b/engines/chewy/text.h
@@ -0,0 +1,105 @@
+/* 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 CHEWY_TEXT_H
+#define CHEWY_TEXT_H
+
+#include "common/list.h"
+#include "chewy/chewy.h"
+#include "chewy/resource.h"
+
+namespace Chewy {
+
+/**
+ * Game texts are contained in txt/atds.tap, and contain the following (in that order):
+ * ADS (Adventure Dialog System) - dialogs, 500 entries max
+ * ATS (Adventure Text System) - text descriptions, 100 entries max
+ * AAD (Adventure Auto Dialog System) - automatic dialogs, 100 entries max
+ * INV - inventory text descriptions, 100 entries max
+ * USE - use action texts, 100 entries max
+ */
+enum MaxTextTypes {
+	kADSTextMax = 500,
+	kATSTextMax = 100,
+	kAADTextMax = 100,
+	kINVTextMax = 100,
+	kUSETextMax = 100
+};
+
+/**
+ * Markers for text entries
+ */
+enum TextEntryMarkers {
+	kEndRow = 0x00,
+	kEndBlock = 0x0b,
+	kEndEntry = 0x0c,
+	kEndText = 0x0d,
+	kEndChunk = 0x0e
+	// There's also 0x0f, block end, which we don't use
+};
+
+#define VOICE_OFFSET 20
+
+struct Dialog {
+	uint16 speechId;
+	Common::String text;
+};
+
+typedef Common::List<Dialog> DialogList;
+
+
+class Text : public Resource {
+public:
+	Text();
+	virtual ~Text();
+
+	DialogList *getDialog(uint dialogNum, uint entryNum);
+	// TODO: getText()
+	// TODO: getAutoDialog()
+	// TODO: getInvDesc()
+	// TODO: getUseText()
+};
+
+class ErrorMessage : public Resource {
+public:
+	ErrorMessage(Common::String filename) : Resource(filename) {}
+	virtual ~ErrorMessage() {}
+
+	Common::String getErrorMessage(uint num);
+};
+
+class Font {
+public:
+	Font(Common::String filename);
+	virtual ~Font();
+
+	::Graphics::Surface *getLine(Common::String text);
+
+private:
+	uint16 _count, _first, _last, _width, _height;
+
+	::Graphics::Surface _fontSurface;
+};
+
+} // End of namespace Chewy
+
+#endif