public bool Save(string filename, bool saveAs = false)
{
if (isSaved && !saveAs)
{
return(true);
}
// Initially, write to a memory stream so we can CRC the data
uint crcVal = 0;
byte[] allBytes = null;
using (MemoryStream ms = new MemoryStream())
{
ms.WriteInt(Const.MAGIC_NUMBER);
// Map info
ms.WriteByte((byte)MapField.MapInfo);
ms.WriteInt(w);
ms.WriteInt(h);
ms.WriteInt((int)Type);
ms.WriteString(MapName);
ms.WriteInt(Warp);
ms.WriteInt(PlayerSpawn.X);
ms.WriteInt(PlayerSpawn.Y);
ms.WriteInt(layers.Length);
// Write map layers
foreach (SortedList <string, Tile> layer in this.layers)
{
ms.WriteByte((byte)MapField.MapLayer);
// Write number of tiles
ms.WriteInt(layer.Count);
foreach (Tile t in layer.Values)
{
if (t is AnimatedTile)
{
AnimatedTile at = (AnimatedTile)t;
ms.WriteInt((int)TileType.Animated);
ms.WriteInt(at.X);
ms.WriteInt(at.Y);
ms.WriteInt(at.Graphic);
}
else if (t is SpecialTile)
{
SpecialTile st = (SpecialTile)t;
ms.WriteInt((int)TileType.Special);
ms.WriteInt(st.X);
ms.WriteInt(st.Y);
ms.WriteInt((int)st.Type);
ms.WriteInt(st.Graphic);
if (st.Type == SpecialTileSpec.WALL)
{
ms.WriteDouble(st.Density);
}
switch (st.Type)
{
case SpecialTileSpec.WARP:
ms.WriteInt(st.WarpMap);
ms.WriteInt(st.WarpX);
ms.WriteInt(st.WarpY);
ms.WriteInt((int)st.WarpAnim);
break;
}
}
else if (t is GraphicTile)
{
GraphicTile gt = (GraphicTile)t;
ms.WriteInt((int)TileType.Graphic);
ms.WriteInt(gt.X);
ms.WriteInt(gt.Y);
ms.WriteInt(gt.Graphic);
}
}
}
// Write spawns
int numSpawnsWritten = 0;
foreach (Spawn sp in Spawns)
{
// If this happens, we shouldn't write any more. Might as well stop now.
if (numSpawnsWritten > this.Spawns.Count)
{
break;
}
ms.WriteByte((byte)MapField.SpawnInfo);
ms.WriteInt(sp.SpawnID);
ms.WriteString(sp.Name);
ms.WriteInt(sp.Spawns.Count);
int numPairsWritten = 0;
foreach (KeyValuePair <int, int> pair in sp.Spawns)
{
// Same error condition as before
if (numPairsWritten > sp.Spawns.Count)
{
break;
}
ms.WriteInt(pair.Key);
ms.WriteInt(pair.Value);
numPairsWritten++;
}
numSpawnsWritten++;
}
allBytes = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(allBytes, 0, allBytes.Length);
CRC32 crc = new CRC32();
crcVal = crc.Check(allBytes);
}
using (BinaryWriter bw = new BinaryWriter(File.OpenWrite(filename)))
{
bw.Write(allBytes);
bw.Write(ByteConverter.ToBytes(crcVal));
}
isSaved = true;
fileName = filename;
return(isSaved);
}
public bool LoadFromStream(Stream s)
{
isLoaded = false;
byte[] all;
using (var memoryStream = new MemoryStream())
{
s.CopyTo(memoryStream);
all = memoryStream.ToArray();
}
CRC32 crc = new CRC32();
uint crcVal = crc.Check(all, 0, (uint)all.Length - 4); //crc everything except the value of the crc
s.Seek(-sizeof(int), SeekOrigin.End); //last four bytes (int) is CRC value
uint fileVal = (uint)s.ReadInt();
if (crcVal != fileVal)
{
return(isLoaded);
}
s.Seek(0, SeekOrigin.Begin);
if (s.ReadInt() != Const.MAGIC_NUMBER)
{
return(isLoaded);
}
spawns = new List <Spawn>();
int loadedLayers = 0;
while (s.Position < s.Length - 4)
{
switch ((MapField)s.ReadByte())
{
case MapField.MapInfo:
w = s.ReadInt();
h = s.ReadInt();
Type = (MapType)s.ReadInt();
mapname = s.ReadString();
Warp = s.ReadInt();
PlayerSpawn = new Microsoft.Xna.Framework.Point(s.ReadInt(), s.ReadInt());
int numLayers = s.ReadInt();
if (numLayers != this.layers.Length)
{
throw new Exception("Invalid number of layers!");
}
break;
case MapField.MapLayer:
int numTiles = s.ReadInt();
var newLayer = layers[loadedLayers] = new SortedList <string, Tile>(numTiles);
for (int i = 0; i < numTiles; i++)
{
Tile toAdd = null;
LAYERS layer = LAYERS.Graphic;
switch ((TileType)s.ReadInt())
{
case TileType.Animated:
toAdd = new AnimatedTile(s.ReadInt(), s.ReadInt(), s.ReadInt());
layer = LAYERS.Graphic;
break;
case TileType.Graphic:
toAdd = new GraphicTile(s.ReadInt(), s.ReadInt(), s.ReadInt());
break;
case TileType.Special:
layer = LAYERS.Special;
SpecialTile st = new SpecialTile(s.ReadInt(), s.ReadInt());
SpecialTileSpec tt = (SpecialTileSpec)s.ReadInt();
st.Graphic = s.ReadInt();
if (tt == SpecialTileSpec.WALL)
{
st.Density = (float)s.ReadDouble();
}
object[] param = null;
switch (tt)
{
case SpecialTileSpec.WARP:
param = new object[] { s.ReadInt(), s.ReadInt(), s.ReadInt(), (WarpAnim)s.ReadInt() };
break;
}
st.SetType(tt, param);
toAdd = st;
break;
}
if (toAdd != null)
{
AddTile(toAdd.X, toAdd.Y, layer, toAdd);
}
}
layers[loadedLayers++] = newLayer;
break;
case MapField.SpawnInfo:
Spawn sp = new Spawn(s.ReadInt(), s.ReadString());
int numPairs = s.ReadInt();
for (int i = 0; i < numPairs; i++)
{
sp.AddSpawnPair(s.ReadInt(), s.ReadInt());
}
break;
}
}
// Make sure we don't have any null layers (they cause problems later)
for (int i = 0; i < layers.Length; i++)
{
if (layers[i] == null)
{
layers[i] = new SortedList <string, Tile>();
}
}
fileName = "";
isLoaded = true;
isSaved = true;
return(isLoaded);
}