MUTATIONOFJB: Basic conversation support.

22 files changed, 765 insertions, 25 deletions

diff --git a/engines/mutationofjb/assets.cpp b/engines/mutationofjb/assets.cpp
new file mode 100644
index 0000000000..d532469e87
--- /dev/null
+++ b/engines/mutationofjb/assets.cpp
@@ -0,0 +1,45 @@
+/* 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 "mutationofjb/assets.h"
+
+namespace MutationOfJB {
+
+Assets::Assets(Game &game) : _game(game), _toSayList("tosay.ger"), _responseList("response.ger") {}
+
+Font& Assets::getSystemFont() {
+	return _systemFont;
+}
+
+Font& Assets::getSpeechFont() {
+	return _speechFont;
+}
+
+ConversationLineList &Assets::getToSayList() {
+	return _toSayList;
+}
+
+ConversationLineList &Assets::getResponseList() {
+	return _responseList;
+}
+
+}
diff --git a/engines/mutationofjb/assets.h b/engines/mutationofjb/assets.h
new file mode 100644
index 0000000000..1d47641a03
--- /dev/null
+++ b/engines/mutationofjb/assets.h
@@ -0,0 +1,53 @@
+/* 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 MUTATIONOFJB_ASSETS_H
+#define MUTATIONOFJB_ASSETS_H
+
+#include "mutationofjb/font.h"
+#include "mutationofjb/conversationlinelist.h"
+
+namespace MutationOfJB {
+
+class Game;
+
+class Assets {
+public:
+	Assets(Game &game);
+
+	Font& getSystemFont();
+	Font& getSpeechFont();
+
+	ConversationLineList& getToSayList();
+	ConversationLineList& getResponseList();
+
+private:
+	Game &_game;
+	SystemFont _systemFont;
+	SpeechFont _speechFont;
+	ConversationLineList _toSayList;
+	ConversationLineList _responseList;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/commands/ifitemcommand.h b/engines/mutationofjb/commands/ifitemcommand.h
index f11ba7cbfb..df073b9fa4 100644
--- a/engines/mutationofjb/commands/ifitemcommand.h
+++ b/engines/mutationofjb/commands/ifitemcommand.h
@@ -33,7 +33,7 @@ class ScriptParseContext;
 
 class IfItemCommandParser : public ConditionalCommandParser {
 public:
-	virtual bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command);
+	virtual bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
 };
 
 class IfItemCommand : public ConditionalCommand {
diff --git a/engines/mutationofjb/commands/talkcommand.cpp b/engines/mutationofjb/commands/talkcommand.cpp
new file mode 100644
index 0000000000..d0775e481f
--- /dev/null
+++ b/engines/mutationofjb/commands/talkcommand.cpp
@@ -0,0 +1,76 @@
+/* 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 "mutationofjb/commands/talkcommand.h"
+#include "mutationofjb/tasks/conversationtask.h"
+#include "mutationofjb/script.h"
+#include "mutationofjb/game.h"
+#include "common/str.h"
+
+namespace MutationOfJB {
+
+bool TalkCommandParser::parse(const Common::String &line, ScriptParseContext &, Command *&command) {
+	if (line.size() < 11 || !line.hasPrefix("TALK TO HIM")) {
+		return false;
+	}
+
+	int modeInt = 0;
+
+	if (line.size() >= 13) {
+		modeInt = atoi(line.c_str() + 12);
+	}
+
+	TalkCommand::Mode mode = TalkCommand::NORMAL_MODE;
+
+	if (modeInt == 1) {
+		mode = TalkCommand::RAY_AND_BUTTLEG_MODE;
+	} else if (modeInt == 3) {
+		mode = TalkCommand::CARNIVAL_TICKET_SELLER_MODE;
+	}
+
+	command = new TalkCommand(mode);
+	return true;
+}
+
+Command::ExecuteResult TalkCommand::execute(ScriptExecutionContext &scriptExeCtx) {
+	if (!_task) {
+		_task = new ConversationTask(scriptExeCtx.getGame().getGameData()._conversationInfo);
+		scriptExeCtx.getGame().getTaskManager().addTask(_task);
+	}
+
+	if (_task->getState() == Task::FINISHED) {
+		scriptExeCtx.getGame().getTaskManager().removeTask(_task);
+		delete _task;
+		_task = nullptr;
+
+		return Command::Finished;
+	}
+
+	return Command::InProgress;
+}
+
+Common::String TalkCommand::debugString() const {
+	const char * modes[] = {"NORMAL", "RAY_AND_BUTTLEG", "CARNIVAL_TICKET_SELLER"};
+	return Common::String::format("TALK %s", modes[(int) _mode]);
+}
+
+}
diff --git a/engines/mutationofjb/commands/talkcommand.h b/engines/mutationofjb/commands/talkcommand.h
new file mode 100644
index 0000000000..09424b2f06
--- /dev/null
+++ b/engines/mutationofjb/commands/talkcommand.h
@@ -0,0 +1,57 @@
+/* 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 MUTATIONOFJB_TALKCOMMAND_H
+#define MUTATIONOFJB_TALKCOMMAND_H
+
+#include "mutationofjb/commands/seqcommand.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+
+class ConversationTask;
+
+class TalkCommandParser : public SeqCommandParser {
+public:
+	virtual bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
+};
+
+class TalkCommand : public SeqCommand {
+public:
+	enum Mode {
+		NORMAL_MODE,
+		RAY_AND_BUTTLEG_MODE,
+		CARNIVAL_TICKET_SELLER_MODE
+	};
+
+	TalkCommand(Mode mode) : _mode(mode), _task(nullptr) {}
+	virtual ExecuteResult execute(ScriptExecutionContext &scriptExecCtx) override;
+	virtual Common::String debugString() const;
+
+private:
+	Mode _mode;
+	ConversationTask *_task;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/conversationlinelist.cpp b/engines/mutationofjb/conversationlinelist.cpp
new file mode 100644
index 0000000000..562c2d0e39
--- /dev/null
+++ b/engines/mutationofjb/conversationlinelist.cpp
@@ -0,0 +1,91 @@
+/* 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 "mutationofjb/conversationlinelist.h"
+#include "mutationofjb/encryptedfile.h"
+#include "mutationofjb/util.h"
+
+namespace MutationOfJB {
+
+ConversationLineList::ConversationLineList(const Common::String &fileName) {
+	parseFile(fileName);
+}
+
+const ConversationLineList::Line *ConversationLineList::getLine(uint index) const {
+	if (index > _lines.size()) {
+		return nullptr;
+	}
+
+	return &_lines[index - 1];
+}
+
+bool ConversationLineList::parseFile(const Common::String &fileName) {
+	EncryptedFile file;
+	file.open(fileName);
+	if (!file.isOpen()) {
+		reportFileMissingError(fileName.c_str());
+		return false;
+	}
+
+	while (!file.eos()) {
+		Common::String lineStr = file.readLine();
+		if (lineStr.empty()) {
+			continue;
+		}
+
+		Line line;
+
+		Common::String::iterator endIt = Common::find(lineStr.begin(), lineStr.end(), '|');
+		if (endIt != lineStr.end()) {
+			Common::String extra = lineStr + endIt;
+			if (*endIt == 'X') {
+				line._extra = Common::String(endIt + 1, lineStr.end()); // Skip 'X' char.
+			}
+		}
+
+		Common::String::iterator startSpeechIt = lineStr.begin();
+		Common::String::iterator endSpeechIt = startSpeechIt;
+
+		while (startSpeechIt < endIt) {
+			endSpeechIt = Common::find(startSpeechIt, endIt, '\\');
+			Common::String::iterator voiceFileIt = Common::find(startSpeechIt, endSpeechIt, '<');
+			Speech speech;
+
+			if (voiceFileIt != endSpeechIt) {
+				if (*voiceFileIt == 'S') {
+					speech._voiceFile = Common::String(voiceFileIt + 1, endSpeechIt);
+				}
+			}
+
+			speech._text = Common::String(startSpeechIt, voiceFileIt);
+			line._speeches.push_back(speech);
+
+			startSpeechIt = endSpeechIt + 1;
+		}
+
+		_lines.push_back(line);
+	}
+
+	return true;
+}
+
+}
diff --git a/engines/mutationofjb/conversationlinelist.h b/engines/mutationofjb/conversationlinelist.h
new file mode 100644
index 0000000000..9ec446e4b4
--- /dev/null
+++ b/engines/mutationofjb/conversationlinelist.h
@@ -0,0 +1,58 @@
+/* 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 MUTATIONOFJB_CONVERSATIONLINELIST_H
+#define MUTATIONOFJB_CONVERSATIONLINELIST_H
+
+#include "common/str.h"
+#include "common/array.h"
+
+namespace MutationOfJB {
+
+class ConversationLineList {
+public:
+	struct Speech {
+		Common::String _text;
+		Common::String _voiceFile;
+
+		bool isRepeating() const { return _text.firstChar() == '*'; }
+		bool isFirstSpeaker() const { return _text.firstChar() == '~'; }
+		bool isSecondSpeaker() const { return _text.firstChar() == '`'; }
+	};
+
+	struct Line {
+		Common::Array<Speech> _speeches;
+		Common::String _extra;
+	};
+
+	ConversationLineList(const Common::String &fileName);
+	const Line *getLine(uint index) const;
+
+private:
+	bool parseFile(const Common::String &fileName);
+
+	Common::Array<Line> _lines;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/game.cpp b/engines/mutationofjb/game.cpp
index a0f85b49b8..24159254df 100644
--- a/engines/mutationofjb/game.cpp
+++ b/engines/mutationofjb/game.cpp
@@ -39,7 +39,9 @@ Game::Game(MutationOfJBEngine *vm)
 	_delayedLocalScript(nullptr),
 	_gui(*this, _vm->getScreen()),
 	_scriptExecCtx(*this),
-	_currentAction(ActionInfo::Walk) {
+	_currentAction(ActionInfo::Walk),
+	_taskManager(*this),
+	_assets(*this) {
 
 	_gameData = new GameData;
 	loadGameData(false);
@@ -192,14 +194,6 @@ void Game::setCurrentAction(ActionInfo::Action action) {
 	_currentAction = action;
 }
 
-Font& Game::getSystemFont() {
-	return _systemFont;
-}
-
-Font& Game::getSpeechFont() {
-	return _speechFont;
-}
-
 uint8 Game::colorFromString(const char *colorStr) {
 	struct {
 		const char *str;
@@ -225,4 +219,12 @@ uint8 Game::colorFromString(const char *colorStr) {
 	return 0x00;
 }
 
+TaskManager& Game::getTaskManager() {
+	return _taskManager;
+}
+
+Assets& Game::getAssets() {
+	return _assets;
+}
+
 }
diff --git a/engines/mutationofjb/game.h b/engines/mutationofjb/game.h
index 4985a884d7..33527ae441 100644
--- a/engines/mutationofjb/game.h
+++ b/engines/mutationofjb/game.h
@@ -24,9 +24,10 @@
 #define MUTATIONOFJB_GAME_H
 
 #include "common/scummsys.h"
-#include "mutationofjb/script.h"
-#include "mutationofjb/font.h"
+#include "mutationofjb/assets.h"
 #include "mutationofjb/gui.h"
+#include "mutationofjb/script.h"
+#include "mutationofjb/tasks/taskmanager.h"
 
 namespace Common {
 class String;
@@ -65,11 +66,11 @@ public:
 	ActionInfo::Action getCurrentAction() const;
 	void setCurrentAction(ActionInfo::Action);
 
-	Font& getSystemFont();
-	Font& getSpeechFont();
-
 	static uint8 colorFromString(const char *colorStr);
 
+	TaskManager& getTaskManager();
+	Assets &getAssets();
+
 private:
 	bool loadGameData(bool partB);
 	void runActiveCommand();
@@ -88,8 +89,8 @@ private:
 
 	ScriptExecutionContext _scriptExecCtx;
 
-	SystemFont _systemFont;
-	SpeechFont _speechFont;
+	TaskManager _taskManager;
+	Assets _assets;
 };
 
 }
diff --git a/engines/mutationofjb/gamedata.h b/engines/mutationofjb/gamedata.h
index 22be9dd273..d1bbc546b3 100644
--- a/engines/mutationofjb/gamedata.h
+++ b/engines/mutationofjb/gamedata.h
@@ -168,8 +168,9 @@ struct ConversationInfo {
 		uint8 _nextLineIndex;
 	};
 
+	typedef Common::Array<Item> Items;
 	struct Line {
-		Common::Array<Item> _items;
+		Items _items;
 	};
 
 	Common::Array<Line> _lines;
diff --git a/engines/mutationofjb/gui.cpp b/engines/mutationofjb/gui.cpp
index 7102407c99..3c8cc66aa8 100644
--- a/engines/mutationofjb/gui.cpp
+++ b/engines/mutationofjb/gui.cpp
@@ -132,19 +132,25 @@ bool Gui::init() {
 
 void Gui::markDirty() {
 	for (Common::Array<Widget *>::iterator it = _widgets.begin(); it != _widgets.end(); ++it) {
-		(*it)->markDirty();
+		if ((*it)->isVisible()) {
+			(*it)->markDirty();
+		}
 	}
 }
 
 void Gui::handleEvent(const Common::Event &event) {
 	for (Common::Array<Widget *>::iterator it = _widgets.begin(); it != _widgets.end(); ++it) {
-		(*it)->handleEvent(event);
+		if ((*it)->isVisible()) {
+			(*it)->handleEvent(event);
+		}
 	}
 }
 
 void Gui::update() {
 	for (Common::Array<Widget *>::iterator it = _widgets.begin(); it != _widgets.end(); ++it) {
-		(*it)->update(*_screen);
+		if ((*it)->isVisible()) {
+			(*it)->update(*_screen);
+		}
 	}
 }
 
diff --git a/engines/mutationofjb/module.mk b/engines/mutationofjb/module.mk
index 507ae39402..89da245dd4 100644
--- a/engines/mutationofjb/module.mk
+++ b/engines/mutationofjb/module.mk
@@ -20,12 +20,17 @@ MODULE_OBJS := \
 	commands/renamecommand.o \
 	commands/saycommand.o \
 	commands/seqcommand.o \
+	commands/talkcommand.o \
+	tasks/conversationtask.o \
+	tasks/taskmanager.o \
 	widgets/buttonwidget.o \
 	widgets/conversationwidget.o \
 	widgets/imagewidget.o \
 	widgets/inventorywidget.o \
 	widgets/widget.o \
 	animationdecoder.o \
+	assets.o \
+	conversationlinelist.o \
 	debug.o \
 	detection.o \
 	encryptedfile.o \
diff --git a/engines/mutationofjb/script.cpp b/engines/mutationofjb/script.cpp
index 321a5ba79d..90146f64c6 100644
--- a/engines/mutationofjb/script.cpp
+++ b/engines/mutationofjb/script.cpp
@@ -44,6 +44,7 @@
 #include "mutationofjb/commands/newroomcommand.h"
 #include "mutationofjb/commands/renamecommand.h"
 #include "mutationofjb/commands/definestructcommand.h"
+#include "mutationofjb/commands/talkcommand.h"
 #include "mutationofjb/game.h"
 
 namespace MutationOfJB {
@@ -62,6 +63,7 @@ static CommandParser **getParsers() {
 		new ChangeSceneCommandParser,
 		new DefineStructCommandParser,
 		new SayCommandParser,
+		new TalkCommandParser,
 		new AddItemCommandParser,
 		new RemoveItemCommandParser,
 		new RemoveAllItemsCommandParser,
diff --git a/engines/mutationofjb/tasks/conversationtask.cpp b/engines/mutationofjb/tasks/conversationtask.cpp
new file mode 100644
index 0000000000..75d850465b
--- /dev/null
+++ b/engines/mutationofjb/tasks/conversationtask.cpp
@@ -0,0 +1,83 @@
+/* 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 "mutationofjb/tasks/conversationtask.h"
+#include "mutationofjb/tasks/taskmanager.h"
+#include "mutationofjb/assets.h"
+#include "mutationofjb/game.h"
+#include "mutationofjb/gamedata.h"
+#include "mutationofjb/gui.h"
+#include "mutationofjb/util.h"
+#include "mutationofjb/widgets/conversationwidget.h"
+
+namespace MutationOfJB {
+
+void ConversationTask::start() {
+	Game &game = getTaskManager()->getGame();
+	ConversationWidget &widget = game.getGui().getConversationWidget();
+
+	widget.setCallback(this);
+	widget.setVisible(true);
+
+	updateWidget();
+}
+
+void ConversationTask::update() {
+}
+
+void ConversationTask::onResponseClicked(ConversationWidget *, int response) {
+
+	uint8 nextLineIndex = _convInfo._lines[_currentLine]._items[response]._nextLineIndex;
+	if (nextLineIndex == 0) {
+		setState(FINISHED);
+		Game &game = getTaskManager()->getGame();
+		ConversationWidget &widget = game.getGui().getConversationWidget();
+		widget.setVisible(false);
+		game.getGui().markDirty(); // TODO: Handle automatically when changing visibility.
+		return;
+	}
+
+	_currentLine = nextLineIndex - 1;
+	updateWidget();
+}
+
+void ConversationTask::updateWidget() {
+	Game &game = getTaskManager()->getGame();
+	ConversationWidget &widget = game.getGui().getConversationWidget();
+
+	const ConversationLineList& toSayList = game.getAssets().getToSayList();
+
+	const ConversationInfo::Line &convLine = _convInfo._lines[_currentLine];
+
+	for (ConversationInfo::Items::size_type i = 0; i < convLine._items.size(); ++i) {
+		Common::String widgetText;
+		const uint8 question = convLine._items[i]._question;
+		if (question != 0) {
+			const ConversationLineList::Line *line = toSayList.getLine(convLine._items[i]._question);
+			widgetText = toUpperCP895(line->_speeches[0]._text);
+		}
+
+		widget.setLine(i, widgetText);
+	}
+}
+
+}
diff --git a/engines/mutationofjb/tasks/conversationtask.h b/engines/mutationofjb/tasks/conversationtask.h
new file mode 100644
index 0000000000..5cc0e5f49f
--- /dev/null
+++ b/engines/mutationofjb/tasks/conversationtask.h
@@ -0,0 +1,45 @@
+/* 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 "mutationofjb/tasks/task.h"
+#include "mutationofjb/gamedata.h"
+#include "mutationofjb/widgets/conversationwidget.h"
+
+namespace MutationOfJB {
+
+class ConversationTask : public Task, public ConversationWidgetCallback {
+public:
+	ConversationTask(const ConversationInfo& convInfo) : _convInfo(convInfo), _currentLine(0) {}
+	virtual ~ConversationTask() {}
+
+	virtual void start() override;
+	virtual void update() override;
+
+	virtual void onResponseClicked(ConversationWidget *, int response) override;
+private:
+	void updateWidget();
+
+	const ConversationInfo &_convInfo;
+	uint _currentLine;
+};
+
+}
diff --git a/engines/mutationofjb/tasks/task.h b/engines/mutationofjb/tasks/task.h
new file mode 100644
index 0000000000..7b43868269
--- /dev/null
+++ b/engines/mutationofjb/tasks/task.h
@@ -0,0 +1,56 @@
+/* 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 "common/scummsys.h"
+
+namespace MutationOfJB {
+
+class TaskManager;
+
+class Task {
+public:
+	enum State {
+		IDLE,
+		RUNNING,
+		FINISHED
+	};
+
+	Task() : _taskManager(nullptr) {}
+	virtual ~Task() {}
+
+	virtual void start() = 0;
+	virtual void update() = 0;
+
+	void setTaskManager(TaskManager *taskMan) { _taskManager = taskMan; }
+	TaskManager *getTaskManager() { return _taskManager; }
+
+	State getState() const { return _state; }
+
+protected:
+	void setState(State state) { _state = state; }
+
+private:
+	TaskManager *_taskManager;
+	State _state;
+};
+
+}
diff --git a/engines/mutationofjb/tasks/taskmanager.cpp b/engines/mutationofjb/tasks/taskmanager.cpp
new file mode 100644
index 0000000000..981654981f
--- /dev/null
+++ b/engines/mutationofjb/tasks/taskmanager.cpp
@@ -0,0 +1,47 @@
+/* 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 "mutationofjb/tasks/taskmanager.h"
+#include "mutationofjb/tasks/task.h"
+
+namespace MutationOfJB {
+
+void TaskManager::addTask(Task *task) {
+	_tasks.push_back(task);
+	task->setTaskManager(this);
+	task->start();
+}
+
+void TaskManager::removeTask(Task *task) {
+	Tasks::iterator it = Common::find(_tasks.begin(), _tasks.end(), task);
+	if (it != _tasks.end()) {
+		_tasks.erase(it);
+	}
+}
+
+void TaskManager::update() {
+	for (Tasks::const_iterator it = _tasks.begin(); it != _tasks.end(); ++it) {
+		(*it)->update();
+	}
+}
+
+}
diff --git a/engines/mutationofjb/tasks/taskmanager.h b/engines/mutationofjb/tasks/taskmanager.h
new file mode 100644
index 0000000000..1f6be36ced
--- /dev/null
+++ b/engines/mutationofjb/tasks/taskmanager.h
@@ -0,0 +1,51 @@
+/* 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 MUTATIONOFJB_TASKMANAGER_H
+#define MUTATIONOFJB_TASKMANAGER_H
+
+#include "common/array.h"
+
+namespace MutationOfJB {
+
+class Game;
+class Task;
+
+class TaskManager {
+public:
+	TaskManager(Game &game) : _game(game) {}
+
+	void addTask(Task *task);
+	void removeTask(Task *task);
+	void update();
+
+	Game &getGame() { return _game; }
+
+private:
+	typedef Common::Array<Task *> Tasks;
+	Tasks _tasks;
+	Game &_game;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/util.cpp b/engines/mutationofjb/util.cpp
index 1a56a62af6..6d7c02a293 100644
--- a/engines/mutationofjb/util.cpp
+++ b/engines/mutationofjb/util.cpp
@@ -33,5 +33,27 @@ void reportFileMissingError(const char *fileName) {
 	warning("%s", errorMessage.c_str());
 }
 
+Common::String toUpperCP895(const Common::String &str) {
+	static const byte conversionTable[] = {
+		0x00, 0x9A, 0x90, 0x85, 0x8E, 0x00, 0x00, 0x80, 0x89, 0x00, 0x00, 0x00, 0x9C, 0x8A, 0x00, 0x00,	/* 0x80-0x8F */
+		0x00, 0x92, 0x00, 0xA7, 0x99, 0x00, 0xA6, 0x00, 0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86,	/* 0x90-0x9F */
+		0x8F, 0x8B, 0x95, 0x97, 0xA5, 0x00, 0x00, 0x00, 0x9B, 0x9E, 0xAB, 0x00							/* 0xA0-0xAB */
+	};
+
+	Common::String ret = str;
+	for (Common::String::iterator it = ret.begin(); it != ret.end(); ++it) {
+		const byte cp895Byte = reinterpret_cast<const byte &>(*it);
+		if (cp895Byte < 0x80) {
+			*it = static_cast<char>(toupper(*it));
+		} else if (cp895Byte <= 0xAB) {
+			byte newChar = conversionTable[cp895Byte - 0x80];
+			if (newChar != 0) {
+				reinterpret_cast<byte &>(*it) = newChar;
+			}
+		}
+	}
+	return ret;
+}
+
 }
 
diff --git a/engines/mutationofjb/util.h b/engines/mutationofjb/util.h
index 95a896d336..86ee10f82e 100644
--- a/engines/mutationofjb/util.h
+++ b/engines/mutationofjb/util.h
@@ -23,9 +23,14 @@
 #ifndef MUTATIONOFJB_UTIL_H
 #define MUTATIONOFJB_UTIL_H
 
+namespace Common {
+class String;
+}
+
 namespace MutationOfJB {
 
 void reportFileMissingError(const char *fileName);
+Common::String toUpperCP895(const Common::String &str);
 
 }
 
diff --git a/engines/mutationofjb/widgets/conversationwidget.cpp b/engines/mutationofjb/widgets/conversationwidget.cpp
index c609fb4bfc..71a3483b75 100644
--- a/engines/mutationofjb/widgets/conversationwidget.cpp
+++ b/engines/mutationofjb/widgets/conversationwidget.cpp
@@ -25,6 +25,7 @@
 #include "mutationofjb/gamedata.h"
 #include "mutationofjb/gui.h"
 #include "mutationofjb/font.h"
+#include "common/events.h"
 
 namespace MutationOfJB {
 
@@ -36,7 +37,8 @@ enum {
 
 ConversationWidget::ConversationWidget(Gui &gui, const Common::Rect &area, const Graphics::Surface &surface) :
 	Widget(gui, area),
-	_surface(surface) {}
+	_surface(surface),
+	_callback(nullptr) {}
 
 
 void ConversationWidget::setLine(int lineNo, const Common::String &str) {
@@ -58,7 +60,28 @@ void ConversationWidget::_draw(Graphics::ManagedSurface &surface) {
 		}
 
 		// TODO: Active line should be WHITE.
-		_gui.getGame().getSystemFont().drawString(line, LIGHTGRAY, CONVERSATION_LINES_X, CONVERSATION_LINES_Y + i * CONVERSATION_LINE_HEIGHT, surface);
+		_gui.getGame().getAssets().getSystemFont().drawString(line, LIGHTGRAY, CONVERSATION_LINES_X, CONVERSATION_LINES_Y + i * CONVERSATION_LINE_HEIGHT, surface);
+	}
+}
+
+void ConversationWidget::handleEvent(const Common::Event &event) {
+	switch(event.type) {
+	case Common::EVENT_LBUTTONDOWN:
+	{
+		const int16 x = event.mouse.x;
+		const int16 y = event.mouse.y;
+		if (_area.contains(x, y)) {
+			if (_callback) {
+				int lineNum = (y - CONVERSATION_LINES_Y) / CONVERSATION_LINE_HEIGHT;
+				if (!_lines[lineNum].empty()) {
+					_callback->onResponseClicked(this, lineNum);
+				}
+			}
+		}
+		break;
+	}
+	default:
+		break;
 	}
 }
 
diff --git a/engines/mutationofjb/widgets/conversationwidget.h b/engines/mutationofjb/widgets/conversationwidget.h
index 0f26a99d3f..b404abc198 100644
--- a/engines/mutationofjb/widgets/conversationwidget.h
+++ b/engines/mutationofjb/widgets/conversationwidget.h
@@ -28,21 +28,32 @@
 
 namespace MutationOfJB {
 
+class ConversationWidget;
+
+class ConversationWidgetCallback {
+public:
+	virtual ~ConversationWidgetCallback() {}
+	virtual void onResponseClicked(ConversationWidget *, int response) = 0;
+};
+
 class ConversationWidget : public Widget {
 public:
 	enum { CONVERSATION_LINES = 4 };
 
 	ConversationWidget(Gui &gui, const Common::Rect &area, const Graphics::Surface &surface);
+	void setCallback(ConversationWidgetCallback *callback) { _callback = callback; }
 
 	void setLine(int lineNo, const Common::String &str);
 
+	virtual void handleEvent(const Common::Event &event) override;
+
 protected:
-	void _draw(Graphics::ManagedSurface &surface);
+	virtual void _draw(Graphics::ManagedSurface &surface) override;
 
 private:
-
 	Graphics::Surface _surface;
 	Common::String _lines[CONVERSATION_LINES];
+	ConversationWidgetCallback *_callback;
 };
 
 }