Initial commit

engines/mutationofjb/commands/gotocommand.cpp

@@ -0,0 +1,79 @@
+/* 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/>.
+ *
+ */
+
+#include "mutationofjb/commands/gotocommand.h"
+#include "mutationofjb/commands/labelcommand.h"
+#include "mutationofjb/gamedata.h"
+#include "mutationofjb/script.h"
+
+/** @file
+ * "GOTO " <label>
+ *
+ * Jumps to a label.
+ */
+
+namespace MutationOfJB {
+
+bool GotoCommandParser::parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) {
+	if (line.size() < 6 || !line.hasPrefix("GOTO")) {
+		return false;
+	}
+
+	Common::String label = line.c_str() + 5;
+	GotoCommand *gotoCmd = new GotoCommand();
+
+	if (parseCtx._labels.contains(label)) {
+		// We already have the label, set it.
+		gotoCmd->setLabelCommand(parseCtx._labels[label]);
+	} else {
+		// Label is after goto, add to pending list.
+		parseCtx._pendingGotos[label].push_back(gotoCmd);
+	}
+
+	command = gotoCmd;
+
+	return true;
+}
+
+
+void GotoCommand::setLabelCommand(LabelCommand *labelCmd) {
+	_labelCommand = labelCmd;
+}
+
+Command::ExecuteResult GotoCommand::execute(ScriptExecutionContext &) {
+	// Intentionally empty.
+
+	return Finished;
+}
+
+Command *GotoCommand::next() const {
+	return _labelCommand;
+}
+
+Common::String GotoCommand::debugString() const {
+	if (!_labelCommand) {
+		return "GOTO (null)";
+	}
+
+	return Common::String::format("GOTO %s", _labelCommand->getName().c_str());
+}
+
+}