/**
* Reads the next map from the file.
* levelNumberToLoad is the level to load, 1 being the first.
*/
public MDRMap ReadMap(int levelNumberToLoad)
{
MDRMap map = new MDRMap();
data.Seek(0, SeekOrigin.Begin);
// find how many levels there are
int numberOfLevels = data.ReadMDRWord();
if ((levelNumberToLoad <= 0) || (levelNumberToLoad > numberOfLevels))
{
data.Close();
throw new Exception("Invalid level number " + levelNumberToLoad);
}
// get the offset
data.RecordSeek(1 + levelNumberToLoad);
int levelOffset = data.ReadMDRWord();
// load in the map header
data.RecordSeek(levelOffset);
int width = data.ReadWord();
int height = data.ReadWord();
int floorNumber = data.ReadWord();
if (floorNumber != levelNumberToLoad)
{
data.Close();
throw new Exception("Level number in file wrong, expecting " + levelNumberToLoad + " but found " + floorNumber);
}
NumberOfAreas = data.ReadWord();
NumberOfChutes = data.ReadWord();
NumberOfTeleports = data.ReadWord();
// make sure we got some resonable results
if ((width <= 0) || (width > 256) || (height <= 0) || (height > 256))
{
data.Close();
throw new Exception("Level dimentions invalid, found " + width + "x" + height + ", maximum size is 256x256");
}
if (NumberOfAreas > MDRMap.MAX_AREAS)
{
data.Close();
throw new Exception("Too many areas in level, found " + NumberOfAreas + " but maximum is " + MDRMap.MAX_AREAS);
}
if (NumberOfChutes > MDRMap.MAX_CHUTES)
{
data.Close();
throw new Exception("Too many chutes in level, found " + NumberOfChutes + " but maximum is " + MDRMap.MAX_CHUTES);
}
if (NumberOfTeleports > MDRMap.MAX_TELEPORTS)
{
data.Close();
throw new Exception("Too many teleports in level, found " + NumberOfTeleports + " but maximum is " + MDRMap.MAX_TELEPORTS);
}
// initialize map with a rock frame
FieldRecord rockTile = new FieldRecord(0, 0, null);
rockTile.Rock = true;
map.Initialize(width + 2, height + 2);
map.FloorNumber = floorNumber;
var AreaLocation = new Vector2[MDRMap.MAX_AREAS];
// load field records
data.RecordSeek(levelOffset + 1);
for (int ylp = 1; ylp <= height; ylp++)
{
for (int xlp = 1; xlp <= width; xlp++)
{
FieldRecord fieldRecord = new FieldRecord(xlp, ylp, map);
fieldRecord.AreaNumber = (ushort)data.ReadWord();
//read the field bitvalues as a currency type, and the convert to byte data
decimal decValue = data.ReadCurrency();
Int64 value = Convert.ToInt64(decValue);
byte[] bitData = BitConverter.GetBytes(value);
AreaLocation[fieldRecord.AreaNumber] = new Vector2(xlp, ylp);
fieldRecord.BitMask = new BitArray(bitData);
// custom adjustment for grass
if (fieldRecord.Dirt && fieldRecord.Water)
{
fieldRecord.Dirt = false;
fieldRecord.Water = false;
fieldRecord.Grass = true;
}
// adjust for new wall types
if (fieldRecord._alt)
{
if (fieldRecord.NorthWall.Door)
{
fieldRecord.NorthWall = new WallRecord(WallType.Arch);
}
if (fieldRecord.NorthWall.Secret)
{
fieldRecord.NorthWall = new WallRecord(WallType.Gate);
}
if (fieldRecord.EastWall.Door)
{
fieldRecord.EastWall = new WallRecord(WallType.Arch);
}
if (fieldRecord.EastWall.Secret)
{
fieldRecord.EastWall = new WallRecord(WallType.Gate);
}
}
// stub: remove traps
fieldRecord.Chute = false;
fieldRecord.Pit = false;
fieldRecord.Teleporter = false;
fieldRecord.FaceEast = false;
fieldRecord.FaceWest = false;
fieldRecord.FaceNorth = false;
fieldRecord.FaceSouth = false;
map[xlp, ylp] = fieldRecord;
map[xlp, ylp].Explored = true;
// skip the unused bytes in this 20 byte record
data.NextRecord();
}
}
// rock outline
WallRecord wall = new WallRecord(WallType.Wall);
for (int lp = 0; lp <= width + 1; lp++)
{
map[lp, 0].Rock = true;
map[lp, 0].NorthWall = wall;
map[lp, height + 1].Rock = true;
map[lp, height + 1].SouthWall = wall;
}
for (int lp = 0; lp <= height + 1; lp++)
{
map[0, lp].Rock = true;
map[0, lp].EastWall = wall;
map[width + 1, lp].Rock = true;
map[width + 1, lp].WestWall = wall;
}
// Load areas.
int localAreaCount = data.ReadMDRWord();
NumberOfAreas = localAreaCount;
//if (localAreaCount != NumberOfAreas)
// Trace.LogWarning("Area count missmatch expecting " + NumberOfAreas + " but found " + localAreaCount + " assuming " + NumberOfAreas);
for (int lp = 0; lp < NumberOfAreas; lp++)
{
MDRArea area = new MDRArea();
area.Origion = new MDRLocation((int)AreaLocation[lp].x, (int)AreaLocation[lp].y, floorNumber);
area.SpawnMask = new MDRSpawnMask(data.ReadUInt32());
int lairID = data.ReadWord();
if (lairID != 0)
{
area.LairedMonster = CoM.Monsters.ByID(lairID);
if (area.LairedMonster == null)
{
Trace.LogWarning("Import Error [Missing Monster]: Can not find monster of ID:{0} for lair{2} at [{1}].", lairID, area.Origion, lp);
}
}
// some areas will be invalid, so ignore areas with no spawnmask or lair id.
if (!(area.SpawnMask.Mask.Count == 0 && lairID == 0))
{
map.Area.Add(area);
area.Map = map;
area.ID = lp;
}
data.NextRecord();
}
data.SkipRecords(200 - NumberOfAreas);
data.SkipRecords(1); // no idea why this is necessary, but there is a blank record here before we start with the teleporters
// load teleports
int localTeleportCount = data.ReadMDRWord();
if (localTeleportCount != NumberOfTeleports)
{
Trace.LogWarning("Teleport count missmatch expecting " + NumberOfTeleports + " but found " + localTeleportCount + " assuming " + NumberOfTeleports);
}
for (int lp = 0; lp < NumberOfTeleports; lp++)
{
TeleportTrapInfo teleport = new TeleportTrapInfo();
teleport.X = data.ReadWord();
teleport.Y = data.ReadWord();
teleport.DestX = data.ReadWord();
teleport.DestY = data.ReadWord();
teleport.DestFloor = data.ReadWord();
data.NextRecord();
if (teleport.IsValid)
{
map.Teleport.Add(teleport);
}
}
// load chutes
int localChuteCount = data.ReadMDRWord();
if (localChuteCount != NumberOfChutes)
{
Trace.LogWarning("Chute count missmatch expecting " + NumberOfChutes + " but found " + localChuteCount + " assuming " + NumberOfChutes);
}
for (int lp = 0; lp < NumberOfChutes; lp++)
{
ChuteTrapInfo chute = new ChuteTrapInfo();
chute.X = data.ReadWord();
chute.Y = data.ReadWord();
chute.DropDepth = data.ReadWord();
data.NextRecord();
if (chute.IsValid)
{
map.Chute.Add(chute);
}
}
return(map);
}
