/// <summary>
/// ons the tile added.
/// </summary>
/// <param name="arg1">The arg1.</param>
/// <param name="arg2">The arg2.</param>
private void onTileAdded(TileMaskCollection arg1, TileMask arg2)
{
requireUpdateLeft = true;
requireUpdateTop = true;
requireUpdateBottom = true;
requireUpdateRight = true;
}
/// <summary>
/// Increases the selection z index.
/// </summary>
public bool IncreaseSelectionZIndex()
{
selection.Sort();
uint selMinZ = selection.tiles.First().Z;
uint selMaxZ = selection.tiles.Last().Z;
TileMask MaxZTile = tiles.FirstOrDefault(t =>
{
return(t.Z > selMinZ && !selection.tiles.Contains(t));
});
if (MaxZTile != default(TileMask))
{
var upperTiles = tiles.Where(t =>
{
return(t.Z > MaxZTile.Z && !selection.tiles.Contains(t));
});
uint i = MaxZTile.Z + 1;
foreach (TileMask t in selection.tiles)
{
t.Z = i;
i++;
}
foreach (TileMask t in upperTiles)
{
t.Z = i;
i++;
}
sorted = false;
Sort();
OnSelectionZIndexChanged?.Invoke(this, selection);
return(true);
}
return(false);
}
/// <summary>
/// Adds the.
/// </summary>
/// <param name="tile">The tile.</param>
public void Add(TileMask tile)
{
if (tile == null)
{
return;
}
if (Count > 0)
{
tile.Z = tiles.Last().Z + 1;
}
else
{
tile.Z = 0;
}
tiles.Add(tile);
if (tile.X < Left || Left < 0)
{
Left = tile.X;
}
if (tile.X + tile.Width > Right)
{
Right = tile.X + tile.Width;
}
if (tile.Y < Top || Top < 0)
{
Top = tile.Y;
}
if (tile.Y + tile.Height > Bottom)
{
Bottom = tile.Y + tile.Height;
}
RequireRefresh = true;
OnTileAdded?.Invoke(this, tile);
}
/// <summary>
/// Finds the by position.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
public TileMaskCollection FindByPosition(int x, int y)
{
ClearSelection();
TileMask tm = tiles.FirstOrDefault((t) =>
{
if (t.X <= x && t.X + t.Width >= x &&
t.Y <= y && t.Y + t.Height >= y)
{
return(true);
}
return(false);
});
if (tm == default)
{
return(selection);
}
selection.Add(tm);
OnSelectionChanged?.Invoke(this, selection);
return(selection);
}