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engines/ultima/ultima8/world/glob_egg.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 "ultima/ultima8/world/glob_egg.h"
+#include "ultima/ultima8/world/map_glob.h"
+#include "ultima/ultima8/games/game_data.h"
+#include "ultima/ultima8/world/item_factory.h"
+#include "ultima/ultima8/ultima8.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+DEFINE_RUNTIME_CLASSTYPE_CODE(GlobEgg)
+
+GlobEgg::GlobEgg() {
+}
+
+GlobEgg::~GlobEgg() {
+}
+
+
+// Called when an item has entered the fast area
+uint32 GlobEgg::enterFastArea() {
+	uint32 coordmask = ~0x1FFU;
+	unsigned int coordshift = 1;
+	unsigned int offset = 1;
+	if (GAME_IS_CRUSADER) {
+		coordmask = ~0x3FFU;
+		coordshift = 2;
+		offset = 2;
+	}
+
+	// Expand it
+	if (!hasFlags(FLG_FASTAREA)) {
+		const MapGlob *glob = GameData::get_instance()->getGlob(_quality);
+		if (!glob) return 0;
+
+		for (const auto &globitem : glob->_contents) {
+			Item *item = ItemFactory::createItem(globitem.shape, globitem.frame,
+			                                     0,
+			                                     FLG_DISPOSABLE | FLG_FAST_ONLY,
+			                                     0, 0, 0, true);
+
+
+			// calculate object's world position
+			int32 itemx = (_x & coordmask) + (globitem.x << coordshift) + offset;
+			int32 itemy = (_y & coordmask) + (globitem.y << coordshift) + offset;
+			int32 itemz = _z + globitem.z;
+
+			item->move(itemx, itemy, itemz);
+		}
+	}
+
+	return Item::enterFastArea();
+}
+
+void GlobEgg::saveData(Common::WriteStream *ws) {
+	Item::saveData(ws);
+}
+
+bool GlobEgg::loadData(Common::ReadStream *rs, uint32 version) {
+	return Item::loadData(rs, version);
+}
+
+} // End of namespace Ultima8
+} // End of namespace Ultima