diff options
Diffstat (limited to 'engines/adl/adl_v3.cpp')
| -rw-r--r-- | engines/adl/adl_v3.cpp | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/engines/adl/adl_v3.cpp b/engines/adl/adl_v3.cpp index a017f9aeb6..623db661bc 100644 --- a/engines/adl/adl_v3.cpp +++ b/engines/adl/adl_v3.cpp @@ -31,7 +31,7 @@ namespace Adl { AdlEngine_v3::AdlEngine_v3(OSystem *syst, const AdlGameDescription *gd) : AdlEngine_v2(syst, gd), - _curDisk(1) { + _curDisk(0) { } Common::String AdlEngine_v3::loadMessage(uint idx) const { @@ -49,6 +49,33 @@ Common::String AdlEngine_v3::getItemDescription(const Item &item) const { return _itemDesc[item.id - 1]; } +void AdlEngine_v3::applyDiskOffset(byte &track, byte §or) const { + sector += _diskOffsets[_curDisk].sector; + if (sector >= 16) { + sector -= 16; + ++track; + } + + track += _diskOffsets[_curDisk].track; +} + +DataBlockPtr AdlEngine_v3::readDataBlockPtr(Common::ReadStream &f) const { + byte track = f.readByte(); + byte sector = f.readByte(); + byte offset = f.readByte(); + byte size = f.readByte(); + + if (f.eos() || f.err()) + error("Error reading DataBlockPtr"); + + if (track == 0 && sector == 0 && offset == 0 && size == 0) + return DataBlockPtr(); + + applyDiskOffset(track, sector); + + return _disk->getDataBlock(track, sector, offset, size); +} + typedef Common::Functor1Mem<ScriptEnv &, int, AdlEngine_v3> OpcodeV3; #define SetOpcodeTable(x) table = &x; #define Opcode(x) table->push_back(new OpcodeV3(this, &AdlEngine_v3::x)) |