diff options
Diffstat (limited to 'engines/adl/adl_v3.cpp')
-rw-r--r-- | engines/adl/adl_v3.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/engines/adl/adl_v3.cpp b/engines/adl/adl_v3.cpp new file mode 100644 index 0000000000..ba9e4a063e --- /dev/null +++ b/engines/adl/adl_v3.cpp @@ -0,0 +1,100 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "adl/adl_v3.h" + +namespace Adl { + +AdlEngine_v3::AdlEngine_v3(OSystem *syst, const AdlGameDescription *gd) : + AdlEngine_v2(syst, gd) { +} + +Common::String AdlEngine_v3::getItemDescription(const Item &item) const { + return _itemDesc[item.description - 1]; +} + +void AdlEngine_v3::loadItemDescriptions(Common::SeekableReadStream &stream, byte count) { + int32 startPos = stream.pos(); + uint16 baseAddr = stream.readUint16LE(); + + // This code assumes that the first pointer points to a string that + // directly follows the pointer table + assert(baseAddr != 0); + baseAddr -= count * 2; + + for (uint i = 0; i < count; ++i) { + stream.seek(startPos + i * 2); + uint16 offset = stream.readUint16LE(); + + if (offset > 0) { + stream.seek(startPos + offset - baseAddr); + _itemDesc.push_back(readString(stream, 0xff)); + } else + _itemDesc.push_back(Common::String()); + } + + if (stream.eos() || stream.err()) + error("Error loading item descriptions"); +} + +typedef Common::Functor1Mem<ScriptEnv &, int, AdlEngine_v3> OpcodeV3; + +void AdlEngine_v3::setupOpcodeTables() { + AdlEngine_v2::setupOpcodeTables(); + delete _condOpcodes[0x04]; + _condOpcodes[0x04] = new OpcodeV3(this, &AdlEngine_v3::o3_isNounNotInRoom); + delete _actOpcodes[0x04]; + _actOpcodes[0x04] = new OpcodeV3(this, &AdlEngine_v3::o3_listInv); +} + +int AdlEngine_v3::o3_isNounNotInRoom(ScriptEnv &e) { + OP_DEBUG_1("\t&& NO_SUCH_ITEMS_IN_ROOM(%s)", itemRoomStr(e.arg(1)).c_str()); + + Common::List<Item>::const_iterator item; + + bool isAnItem = false; + + for (item = _state.items.begin(); item != _state.items.end(); ++item) { + if (item->noun == e.getNoun()) { + isAnItem = true; + + if (item->room == roomArg(e.arg(1))) + return -1; + } + } + + return (isAnItem ? 1 : -1); +} + +int AdlEngine_v3::o3_listInv(ScriptEnv &e) { + OP_DEBUG_0("\tLIST_INVENTORY()"); + + Common::List<Item>::const_iterator item; + + for (item = _state.items.begin(); item != _state.items.end(); ++item) + if (item->room == IDI_ANY) + printString(_itemDesc[item->description - 1]); + + return 0; +} + +} // End of namespace Adl |