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engines/mutationofjb/script.h

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef MUTATIONOFJB_SCRIPT_H
+#define MUTATIONOFJB_SCRIPT_H
+
+#include "mutationofjb/commands/command.h"
+#include "common/array.h"
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+#include "common/stack.h"
+
+namespace Common {
+class SeekableReadStream;
+class String;
+}
+
+namespace MutationOfJB {
+
+class Command;
+class LabelCommand;
+class Game;
+class GotoCommand;
+class ConditionalCommand;
+class Script;
+class RandomCommand;
+struct GameData;
+
+typedef Common::Array<Command *> Commands;
+
+struct ActionInfo {
+	enum Action {
+		Look,
+		Walk,
+		Talk,
+		Use,
+		PickUp
+	};
+
+	Action _action;
+	Common::String _entity1Name;
+	Common::String _entity2Name;
+	bool _walkTo;
+	Command *_command;
+};
+
+typedef Common::Array<ActionInfo> ActionInfos;
+typedef Common::Array<GotoCommand *> GotoCommands;
+typedef Common::HashMap<Common::String, Command *> Macros;
+typedef Common::HashMap<uint8, Command *> Startups;
+typedef Common::HashMap<Common::String, Command *> Extras;
+
+class ScriptParseContext {
+public:
+	ScriptParseContext(Common::SeekableReadStream &stream);
+	bool readLine(Common::String &line);
+	void addConditionalCommand(ConditionalCommand *command, char tag, bool firstHash);
+	void addLookSection(const Common::String &item, bool walkTo);
+
+	Common::SeekableReadStream &_stream;
+	Command *_currentCommand;
+	Command *_lastCommand;
+
+	struct ConditionalCommandInfo {
+		ConditionalCommand *_command;
+		char _tag;
+		bool _firstHash;
+	};
+	typedef Common::Array<ConditionalCommandInfo> ConditionalCommandInfos;
+	ConditionalCommandInfos _pendingCondCommands;
+
+	typedef Common::HashMap<Common::String, LabelCommand *> LabelMap;
+	LabelMap _labels;
+
+	typedef Common::HashMap<Common::String, GotoCommands> PendingGotoMap;
+	PendingGotoMap _pendingGotos;
+
+	RandomCommand *_pendingRandomCommand;
+
+	ActionInfos _actionInfos;
+	Macros _macros;
+	Startups _startups;
+	Extras _extras;
+
+private:
+};
+
+class ScriptExecutionContext {
+public:
+	ScriptExecutionContext(Game &game, Script *localScriptOverride = nullptr) : _game(game), _activeCommand(nullptr), _localScriptOverride(localScriptOverride) {}
+	void clear();
+
+	Command::ExecuteResult runActiveCommand();
+	Command::ExecuteResult startCommand(Command *cmd);
+	Command::ExecuteResult startStartupSection();
+
+	void pushReturnCommand(Command *);
+	Command *popReturnCommand();
+	Game &getGame();
+	GameData &getGameData();
+	Command *getMacro(const Common::String &name) const;
+	Command *getExtra(const Common::String &name) const;
+	bool isCommandRunning() const;
+
+private:
+	Game &_game;
+	Command *_activeCommand;
+	Common::Stack<Command *> _callStack;
+	Script *_localScriptOverride;
+};
+
+class Script {
+public:
+	bool loadFromStream(Common::SeekableReadStream &stream);
+	~Script();
+
+	const ActionInfos &getActionInfos(ActionInfo::Action action);
+	const Commands &getAllCommands() const;
+	const Macros &getMacros() const;
+	const Startups &getStartups() const;
+	Command *getMacro(const Common::String &name) const;
+	Command *getStartup(uint8 startupId) const;
+	Command *getExtra(const Common::String &name) const;
+
+private:
+	void destroy();
+	Commands _allCommands;
+	ActionInfos _actionInfos[5];
+	Macros _macros;
+	Startups _startups;
+	Extras _extras;
+};
+
+}
+
+#endif