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engines/ultima/ultima8/world/item_factory.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/misc/common_types.h"
+
+#include "ultima/ultima8/world/item_factory.h"
+#include "ultima/ultima8/games/game_data.h"
+#include "ultima/ultima8/gfx/main_shape_archive.h"
+#include "ultima/ultima8/world/actors/main_actor.h"
+#include "ultima/ultima8/world/glob_egg.h"
+#include "ultima/ultima8/world/monster_egg.h"
+#include "ultima/ultima8/world/teleport_egg.h"
+#include "ultima/ultima8/ultima8.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+static Item *getItemForFamily(uint32 family) {
+	switch (family) {
+	case ShapeInfo::SF_GENERIC:
+	case ShapeInfo::SF_QUALITY:
+	case ShapeInfo::SF_QUANTITY:
+	case ShapeInfo::SF_BREAKABLE:
+	case ShapeInfo::SF_REAGENT: // reagents need special handling too
+	case ShapeInfo::SF_CRUWEAPON:
+	case ShapeInfo::SF_CRUAMMO:
+	case ShapeInfo::SF_CRUBOMB:
+	case ShapeInfo::SF_CRUINVITEM:
+	case ShapeInfo::SF_15: // what's this?
+		// 'simple' item
+		return new Item();
+
+	case ShapeInfo::SF_CONTAINER:
+		return new Container();
+
+	case ShapeInfo::SF_GLOBEGG:
+		return new GlobEgg();
+
+	case ShapeInfo::SF_UNKEGG:
+		return new Egg();
+
+	case ShapeInfo::SF_MONSTEREGG:
+		// FIXME: For crusader, item family 7 is also treated like a container
+		// (it can have contents, and the contents can be destroyed.
+		// Is it not the same as monster egg?
+		return new MonsterEgg();
+
+	case ShapeInfo::SF_TELEPORTEGG:
+		return new TeleportEgg();
+	}
+
+	return nullptr;
+}
+
+Item *ItemFactory::createItem(uint32 shape, uint32 frame, uint16 quality,
+							  uint16 flags, uint16 npcnum, uint16 mapnum,
+							  uint32 extendedflags, bool objId) {
+	// check what class to create
+	const ShapeInfo *info = GameData::get_instance()->getMainShapes()->
+	                  getShapeInfo(shape);
+	if (info == nullptr)
+		return nullptr;
+
+	// New item, no lerping
+	extendedflags |= Item::EXT_LERP_NOPREV;
+
+	uint32 family = info->_family;
+
+	Item *item = getItemForFamily(family);
+
+	if (item) {
+		item->setShape(shape);
+		item->_frame = frame;
+		item->_quality = quality;
+		item->_flags = flags;
+		item->_npcNum = npcnum;
+		item->_mapNum = mapnum;
+		item->_extendedFlags = extendedflags;
+		if (objId)
+			item->assignObjId();
+		if (GAME_IS_CRUSADER) {
+			if (info->_damageInfo && info->_damageInfo->takesDamage()) {
+				item->setDamagePoints(info->_damageInfo->damagePoints());
+			} // else damage points is default 1 (set in Item constructor)
+
+			if (info->_family == ShapeInfo::SF_CRUWEAPON && info->_weaponInfo &&
+				info->_weaponInfo->_clipSize) {
+				item->setQuality(info->_weaponInfo->_clipSize);
+			}
+			if (info->_family == ShapeInfo::SF_CRUAMMO ||
+					 info->_family == ShapeInfo::SF_CRUBOMB) {
+				item->setQuality(1);
+			}
+		}
+	}
+
+	return item;
+}
+
+static Actor *getActorForNpcNum(uint32 npcnum) {
+	if (npcnum == kMainActorId)
+		return new MainActor();
+
+	// 'normal' Actor/NPC
+	return new Actor();
+}
+
+Actor *ItemFactory::createActor(uint32 shape, uint32 frame, uint16 quality,
+								uint16 flags, uint16 npcnum, uint16 mapnum,
+								uint32 extendedflags, bool objId) {
+	// New actor, no lerping
+	extendedflags |= Item::EXT_LERP_NOPREV;
+
+	Actor *actor = getActorForNpcNum(npcnum);
+
+	actor->setShape(shape);
+	actor->_frame = frame;
+	actor->_quality = quality;
+	actor->_flags = flags;
+	actor->_npcNum = npcnum;
+	actor->_mapNum = mapnum;
+	if (npcnum != 0) {
+		actor->_objId = static_cast<uint16>(npcnum);
+	} else if (objId) {
+		actor->assignObjId();
+	}
+	actor->_extendedFlags = extendedflags;
+
+	return actor;
+}
+
+} // End of namespace Ultima8
+} // End of namespace Ultima