/// <summary>
/// Forwards the call to MapFileChild.
/// </summary>
/// <param name="rows"></param>
/// <param name="cols"></param>
/// <param name="levs"></param>
/// <param name="zType"></param>
/// <returns>a bitwise int of changes
/// 0x0 - no changes
/// 0x1 - Map changed
/// 0x2 - Routes changed</returns>
public virtual int MapResize(
int rows,
int cols,
int levs,
MapResizeService.MapResizeZtype zType)
{
return(0x0);
}
/// <summary>
/// Resizes the current Map.
/// </summary>
/// <param name="rows">total rows in the new Map</param>
/// <param name="cols">total columns in the new Map</param>
/// <param name="levs">total levels in the new Map</param>
/// <param name="zType">MRZT_TOP to add or subtract delta-levels
/// starting at the top level, MRZT_BOT to add or subtract delta-levels
/// starting at the ground level - but only if a height difference is
/// found for either case</param>
/// <returns>a bitwise int of changes
/// 0x0 - no changes
/// 0x1 - Map changed
/// 0x2 - Routes changed</returns>
public override int MapResize(
int rows,
int cols,
int levs,
MapResizeService.MapResizeZtype zType)
{
int bit = 0x0;
var tileList = MapResizeService.GetResizedTileList(
rows, cols, levs,
MapSize,
MapTiles,
zType);
if (tileList != null)
{
bit |= 0x1;
int
preRows = MapSize.Rows,
preCols = MapSize.Cols,
preLevs = MapSize.Levs;
if (zType == MapResizeService.MapResizeZtype.MRZT_TOP && // adjust route-nodes ->
Routes.Any())
{
bit |= 0x2;
int delta = (levs - preLevs); // NOTE: map levels are inverted so adding or subtracting levels
// to the top needs to push any existing node-levels down or up.
foreach (RouteNode node in Routes)
{
if (node.Lev < 128) // allow nodes that are OoB to come back into view
{
if ((node.Lev += delta) < 0) // NOTE: node x/y/z are stored as bytes.
{
node.Lev += 256; // -> ie. level -1 = level 255
}
}
else
{
if ((node.Lev += delta - 256) < 0) // nodes above the highest Maplevel maintain
{
node.Lev += 256; // their relative z-level
}
}
}
}
MapSize = new MapSize(rows, cols, levs);
MapTiles = tileList;
if (RouteCheckService.CheckNodeBounds(this))
{
bit |= 0x2;
}
ClearRouteNodes();
SetupRouteNodes();
Level = 0; // fires a LevelChangedEvent.
}
return(bit);
}
