MUTATIONOFJB: Start implementation of ATN scripts (IF command).

8 files changed, 397 insertions, 0 deletions

diff --git a/engines/mutationofjb/commands/command.cpp b/engines/mutationofjb/commands/command.cpp
new file mode 100644
index 0000000000..d0b3f826e3
--- /dev/null
+++ b/engines/mutationofjb/commands/command.cpp
@@ -0,0 +1,33 @@
+/* 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/command.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+Command::~Command() {}
+
+SeqCommand *Command::asSeqCommand() {
+	return nullptr;
+}
+
+}
diff --git a/engines/mutationofjb/commands/command.h b/engines/mutationofjb/commands/command.h
new file mode 100644
index 0000000000..beae9d2833
--- /dev/null
+++ b/engines/mutationofjb/commands/command.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_COMMAND_H
+#define MUTATIONOFJB_COMMAND_H
+
+namespace Common {
+	class String;
+}
+
+namespace MutationOfJB {
+
+class GameData;
+class SeqCommand;
+class IfCommand;
+class CallMacroCommand;
+class ScriptParseContext;
+class Command;
+
+typedef bool (*CommandParseFunc)(const Common::String &line, ScriptParseContext &parseContext, Command *&command);
+
+class Command {
+public:
+	enum ExecuteResult {
+		None,
+		Finished,
+		InProgress
+	};
+
+	virtual ~Command();
+
+	virtual ExecuteResult execute(GameData &gameData) = 0;
+	virtual Command *next() const = 0;
+
+	virtual SeqCommand *asSeqCommand();
+};
+}
+
+#endif
diff --git a/engines/mutationofjb/commands/conditionalcommand.cpp b/engines/mutationofjb/commands/conditionalcommand.cpp
new file mode 100644
index 0000000000..3118e6d8cb
--- /dev/null
+++ b/engines/mutationofjb/commands/conditionalcommand.cpp
@@ -0,0 +1,41 @@
+/* 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/conditionalcommand.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+
+ConditionalCommand::ConditionalCommand() :
+	_trueCommand(nullptr),
+	_falseCommand(nullptr),
+	_cachedResult(false)
+{}
+
+Command *ConditionalCommand::next() const {
+	if (_cachedResult) {
+		return _trueCommand;
+	} else {
+		return _falseCommand;
+	}
+}
+};
diff --git a/engines/mutationofjb/commands/conditionalcommand.h b/engines/mutationofjb/commands/conditionalcommand.h
new file mode 100644
index 0000000000..e355662454
--- /dev/null
+++ b/engines/mutationofjb/commands/conditionalcommand.h
@@ -0,0 +1,41 @@
+/* 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/command.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+
+class ConditionalCommand : public Command {
+public:
+	ConditionalCommand();
+	void setTrueCommand(Command *command);
+	void setFalseCommand(Command *command);
+
+	virtual Command *next() const override;
+protected:
+	Command *_trueCommand;
+	Command *_falseCommand;
+	bool _cachedResult;
+};
+
+}
diff --git a/engines/mutationofjb/commands/ifcommand.cpp b/engines/mutationofjb/commands/ifcommand.cpp
new file mode 100644
index 0000000000..18b8081842
--- /dev/null
+++ b/engines/mutationofjb/commands/ifcommand.cpp
@@ -0,0 +1,88 @@
+/* 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/ifcommand.h"
+#include "mutationofjb/game.h"
+#include "mutationofjb/script.h"
+#include "common/str.h"
+#include "common/translation.h"
+
+namespace MutationOfJB {
+
+bool IfCommand::ParseFunc(const Common::String &line, ScriptParseContext &parseContext, Command *&command)
+{
+	// IFtss oo val!
+	// <t>   1B Tag.
+	// <ss>  2B Scene.
+	// <oo>  2B Object ID.
+	// <val> VL Value.
+	// !     1B Negation (optional).
+
+	if (line.size() < 10) {
+		return false;
+	}
+	
+	if (strncmp(line.c_str(), "IF", 2) != 0) {
+		return false;
+	}
+
+	const char *const cstr = line.c_str();
+	const char tag = cstr[2];
+	const uint8 sceneId = atoi(cstr + 3);
+	const uint8 objectId = atoi(cstr + 6);
+	const uint8 value = atoi(cstr + 9);
+	const bool negative = (line.lastChar() == '!');
+
+	IfCommand *ifCommand = new IfCommand(sceneId, objectId, value, negative);
+
+	command = ifCommand;
+	parseContext.addConditionalCommand(ifCommand, tag);
+	return true;
+}
+
+IfCommand::IfCommand(uint8 sceneId, uint8 objectId, uint16 value, bool negative) :
+	_sceneId(sceneId),
+	_objectId(objectId),
+	_value(value),
+	_negative(negative)
+{}
+
+Command::ExecuteResult IfCommand::execute(GameData &gameData) {
+	Scene* const scene = gameData.getScene(_sceneId);
+	if (!scene) {
+		return Finished;
+	}
+
+	Object* const object = scene->getObject(_objectId);
+	if (!object) {
+		return Finished;
+	}
+
+	_cachedResult = (object->_WX == _value);
+	if (_negative) {
+		_cachedResult = !_cachedResult;
+	}
+
+	return Finished;
+}
+}
+
diff --git a/engines/mutationofjb/commands/ifcommand.h b/engines/mutationofjb/commands/ifcommand.h
new file mode 100644
index 0000000000..d33f34ffb0
--- /dev/null
+++ b/engines/mutationofjb/commands/ifcommand.h
@@ -0,0 +1,52 @@
+/* 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_IFCOMMAND_H
+#define MUTATIONOFJB_IFCOMMAND_H
+
+#include "mutationofjb/commands/conditionalcommand.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+
+class ScriptParseContext;
+
+class IfCommand : public ConditionalCommand {
+public:
+	static bool ParseFunc(const Common::String &line, ScriptParseContext &parseContext, Command *&command);
+
+	IfCommand(uint8 sceneId, uint8 objectId, uint16 value, bool negative);
+	
+	virtual ExecuteResult execute(GameData &gameData) override;
+
+private:
+	uint8 _sceneId;
+	uint8 _objectId;
+	uint16 _value;
+	bool _negative;
+
+	bool _cachedResult;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/commands/seqcommand.cpp b/engines/mutationofjb/commands/seqcommand.cpp
new file mode 100644
index 0000000000..ab98497f21
--- /dev/null
+++ b/engines/mutationofjb/commands/seqcommand.cpp
@@ -0,0 +1,40 @@
+/* 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 "seqcommand.h"
+
+namespace MutationOfJB {
+
+void SeqCommand::setNextCommand(Command *nextCommand)
+{
+	_nextCommand = nextCommand;
+}
+
+Command *SeqCommand::next() const {
+	return _nextCommand;
+}
+
+SeqCommand *SeqCommand::asSeqCommand() {
+	return this;
+}
+
+}
diff --git a/engines/mutationofjb/commands/seqcommand.h b/engines/mutationofjb/commands/seqcommand.h
new file mode 100644
index 0000000000..b247fb22e1
--- /dev/null
+++ b/engines/mutationofjb/commands/seqcommand.h
@@ -0,0 +1,44 @@
+/* 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_SEQCOMMAND_H
+#define MUTATIONOFJB_SEQCOMMAND_H 
+
+#include "mutationofjb/commands/command.h"
+#include "common/scummsys.h"
+
+namespace MutationOfJB {
+
+class SeqCommand : public Command {
+public:
+	void setNextCommand(Command *nextCommand);
+	virtual Command *next() const override;
+	virtual SeqCommand *asSeqCommand();
+
+private:
+	Command *_nextCommand;
+};
+
+}
+
+#endif
+