private static void WriteSprites(BinaryWriter writer, ICollection <Thing> sprites, Dictionary <Sector, int> sectorids)
{
List <Thing> validsprites = new List <Thing>(sprites.Count);
bool first = true;
foreach (var s in sprites)
{
// Skip player start sprite...
if (first)
{
first = false;
continue;
}
// Sprites must be inside an existing sector
if (s.Sector == null || s.Sector.IsDisposed)
{
s.DetermineSector();
}
if (s.Sector == null)
{
continue;
}
validsprites.Add(s);
}
// UINT16LE Number of sprites in the map
writer.Write((ushort)validsprites.Count);
foreach (Thing s in validsprites)
{
// INT32LE x, y, z
writer.Write((int)s.Position.x);
writer.Write((int)-s.Position.y); // Transform to match Build coords...
writer.Write(GetBuildHeight((int)s.Position.z)); // Transform to match Build coords...
// INT16LE cstat
writer.Write((ushort)FlagsToInt(s.Flags));
// INT16LE picnum
writer.Write((short)s.TileIndex);
// INT8 shade, UINT8 pal
writer.Write((sbyte)s.Shade);
writer.Write((byte)s.PaletteIndex);
// UINT8 clipdist, filler
writer.Write((byte)s.ClipDistance);
writer.Write((byte)0);
// UINT8 xrepeat, yrepeat, xpanning, ypanning
writer.Write((byte)s.RepeatX);
writer.Write((byte)s.RepeatY);
writer.Write((byte)s.OffsetX);
writer.Write((byte)s.OffsetY);
// INT16LE sectnum, statnum, ang, owner
writer.Write((short)sectorids[s.Sector]);
writer.Write((short)s.Status);
writer.Write((short)Angle2D.RadToBuild(s.Angle));
writer.Write((short)s.Owner);
// INT16LE xvel, yvel, zvel
writer.Write((short)s.Velocity.x);
writer.Write((short)s.Velocity.y);
writer.Write((short)s.Velocity.z);
// INT16LE lotag, hitag, extra
writer.Write((short)s.LoTag);
writer.Write((short)s.HiTag);
writer.Write((short)s.Extra);
}
}
public override void Write(MapSet map, Stream mapdata)
{
// Make collections
var buildwallids = new Dictionary <int, BuildWall>(map.Sidedefs.Count);
var wallids = new Dictionary <Sidedef, int>(map.Sidedefs.Count);
var sectorids = new Dictionary <Sector, int>(map.Sectors.Count);
// Walls must be stored on per-sector basis...
foreach (Sector s in map.Sectors)
{
if (s.Sidedefs == null || s.Sidedefs.Count < 3)
{
continue;
}
var sectorsidelists = Tools.GetSortedSectorSides(s);
if (sectorsidelists.Count == 0)
{
continue;
}
foreach (List <Sidedef> sideslist in sectorsidelists)
{
// Add to lookup table
for (int i = 0; i < sideslist.Count; i++)
{
wallids.Add(sideslist[i], wallids.Count);
}
// Create BuildWalls
for (int i = 0; i < sideslist.Count; i++)
{
var bw = new BuildWall(sideslist[i]);
int next = (i < sideslist.Count - 1 ? i + 1 : 0); // Connect last wall to the first one
bw.NextWallIndex = wallids[sideslist[next]];
bw.Side = sideslist[i];
buildwallids.Add(buildwallids.Count, bw);
}
}
sectorids.Add(s, sectorids.Count);
}
// Fill in OtherWallIndex and OtherSectorIndex
foreach (var group in wallids)
{
if (group.Key.Other != null)
{
buildwallids[group.Value].OtherWallIndex = wallids[group.Key.Other];
buildwallids[group.Value].OtherSectorIndex = sectorids[group.Key.Other.Sector];
}
}
// Write map structures
using (BinaryWriter writer = new BinaryWriter(mapdata))
{
// Write map header
writer.Write(Version);
// First sprite must be player start
Thing playerstart = map.GetThingByIndex(0);
//TODO: check this BEFORE saving the map!
if (playerstart == null)
{
throw new InvalidDataException("Map has no Player start!");
}
if (playerstart.Sector == null || playerstart.Sector.IsDisposed)
{
playerstart.DetermineSector();
}
if (playerstart.Sector == null)
{
throw new InvalidDataException("Player start must be inside a sector!");
}
// Write player start point
writer.Write((int)playerstart.Position.x);
writer.Write((int)-playerstart.Position.y); // Transform to match Build coords...
writer.Write(GetBuildHeight((int)playerstart.Position.z)); // Transform to match Build coords...
// Write player starting angle
writer.Write((ushort)Angle2D.RadToBuild(playerstart.Angle));
// Write sector number containing the start point
writer.Write((ushort)sectorids[playerstart.Sector]);
// Write sectors
WriteSectors(writer, sectorids.Keys);
// Write walls
WriteWalls(writer, buildwallids.Values);
// Write sprites
WriteSprites(writer, map.Things, sectorids);
}
}