- Add Talk class and begin to use it from Cutaway class

- Move getString() helper function to Talk class

svn-id: r10654

1 files changed, 148 insertions, 0 deletions

diff --git a/queen/talk.h b/queen/talk.h
new file mode 100644
index 0000000000..42fdeebf73
--- /dev/null
+++ b/queen/talk.h
@@ -0,0 +1,148 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2003 The ScummVM project
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#ifndef QUEEN_TALK_H
+#define QUEEN_TALK_H
+
+#include "queen/queen.h"
+
+namespace Queen {
+
+class Resource;
+class Logic;
+
+class Talk {
+	public:
+
+		//! Public interface to run a talk from a file
+		static void run(
+				const char *filename,
+				char *cutawayFilename,
+				Logic *logic,
+				Resource *resource);
+
+		//! Public interface to speak a sentence
+#if 0
+		static void run(
+				const char *sentence,
+				const char *person,
+				int noun,
+				Logic *logic,
+				Resource *resource);
+#endif
+
+		//! Read a string from ptr and return new ptr
+		static byte *getString(byte *ptr, char *str, int maxLength, int align = 2);
+
+	private:
+		//!  Collection of constants used by Talk
+		enum {
+			MAX_STRING_LENGTH = 255,
+			MAX_STRING_SIZE = (MAX_STRING_LENGTH + 1),
+			TALK_SELECTED_COUNT = 86
+		};
+
+		//! TODO Move this to struct.h later!
+		struct TalkSelected {
+			int16 hasTalkedTo;
+			int16 values[4];
+		};
+
+		struct DialogueNode {
+			int16 head;
+			int16 dialogueNodeValue1;
+			int16 gameStateIndex;
+			int16 gameStateValue;
+		};
+
+		Logic *_logic;
+		Resource *_resource;
+		
+		//! Raw .dog file data (without 20 byte header)
+		byte *_fileData;
+
+		//! Number of dialogue levels
+		int16 _levelMax;
+
+		//! Unique key for this dialogue
+		int16 _uniqueKey;
+
+		//! Used to select voice files
+		int16 _talkKey;
+
+		//! Used by findDialogueString
+		int16 _pMax;
+
+		//! String data
+		byte *_person1Ptr;
+
+		//! Data used if we have talked to the person before
+		byte *_person2Ptr;
+
+		//! Data used if we haven't talked to the person before
+		byte *_joePtr;
+
+		//! Set to true to quit talking
+		bool _quit;
+
+		//! IDs for sentences
+		DialogueNode _dialogueTree[18][6];
+
+		//! TODO Move this to the Logic class later!
+		TalkSelected _talkSelected[TALK_SELECTED_COUNT];
+
+		//! Greeting from person Joe has talked to before
+		char _person2String[MAX_STRING_SIZE];
+
+		int _oldSelectedSentenceIndex;
+		int _oldSelectedSentenceValue;
+
+
+		Talk(Logic *logic, Resource *resource);
+		~Talk();
+
+		//! Perform talk in file and return a cutaway filename
+		void talk(const char *filename, char *cutawayFilename);
+
+		//! Load talk data from .dog file 
+		void load(const char *filename);
+
+		//! First things spoken
+		void initialTalk();
+
+		//! Find a string in the dialogue tree
+		void findDialogueString(byte *ptr, int16 id, char *str);
+
+		//! Speak sentence
+		bool speak(const char *sentence, const char *person, const char *voiceFilePrefix);
+
+		//! Get TalkSelected struct for this talk
+		TalkSelected *talkSelected();
+
+		//! The sentence will not be displayed again
+		void disableSentence(int oldLevel, int selectedSentence);
+
+
+};
+
+} // End of namespace Queen
+
+#endif