Initial commit

engines/mutationofjb/commands/newroomcommand.cpp

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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/>.
+ *
+ */
+
+#include "mutationofjb/commands/newroomcommand.h"
+#include "mutationofjb/script.h"
+#include "mutationofjb/game.h"
+#include "mutationofjb/gamedata.h"
+#include "common/str.h"
+
+/** @file
+ * "NEWROOM " <sceneId> " " <x> " " <y> [ " "  <frame> ]
+ *
+ * NEWROOM changes the current scene. While doing that, it also executes STARTUP section for the new room.
+ * However, after that, the execution goes back to the old script to finish commands after NEWROOM.
+ *
+ * All parameters are supposed to be 3 characters long.
+ * SceneId is the scene to load, x and y are the player's new position and frame is the player's new frame (orientation).
+ */
+
+namespace MutationOfJB {
+
+bool NewRoomCommandParser::parse(const Common::String &line, ScriptParseContext &, Command *&command) {
+	if (line.size() < 19 || !line.hasPrefix("NEWROOM")) {
+		return false;
+	}
+
+	const uint8 sceneId = atoi(line.c_str() + 8);
+	const uint16 x = atoi(line.c_str() + 12);
+	const uint16 y = atoi(line.c_str() + 16);
+	uint8 frame = 0;
+	if (line.size() >= 21)
+		frame = atoi(line.c_str() + 20);
+	command = new NewRoomCommand(sceneId, x, y, frame);
+	return true;
+}
+
+
+NewRoomCommand::NewRoomCommand(uint8 sceneId, uint16 x, uint16 y, uint8 frame) : _sceneId(sceneId), _x(x), _y(y), _frame(frame), _innerExecCtx(nullptr) {}
+
+Command::ExecuteResult NewRoomCommand::execute(ScriptExecutionContext &scriptExecCtx) {
+	Game &game = scriptExecCtx.getGame();
+
+	// Execute new startup section.
+	ExecuteResult res;
+	if (!_innerExecCtx) {
+		Script *newScript = game.changeSceneDelayScript(_sceneId, game.getGameData()._partB);
+		_innerExecCtx = new ScriptExecutionContext(scriptExecCtx.getGame(), newScript);
+		res = _innerExecCtx->startStartupSection();
+	} else {
+		res = _innerExecCtx->runActiveCommand();
+	}
+
+	if (res == Finished) {
+		delete _innerExecCtx;
+		_innerExecCtx = nullptr;
+	}
+
+	return res;
+}
+
+Common::String NewRoomCommand::debugString() const {
+	return Common::String::format("NEWROOM %u %u %u %u", (unsigned int) _sceneId, (unsigned int) _x, (unsigned int) _y, (unsigned int) _frame);
+}
+
+}