//---------------------------------------------------------------------------
private void SetHighlight(int x, int y, int width, int height, bool checkBounds)
{
if (Highlight == null)
{
Highlight = new SelectionRect(x, y, width, height, checkBounds ? Bounds : null);
}
else
{
Highlight.Update(x, y, width, height, checkBounds ? Bounds : null);
}
OnPropertyChanged("Highlight");
}
//---------------------------------------------------------------------------
private void UpdateHighlight(int x, int y)
{
SelectionRect tilesetSelection = TilesetManager.Get().GetSelection();
SelectionRect rect = new SelectionRect(x, y, tilesetSelection.Width, tilesetSelection.Height).Within(new SelectionRect(0, 0, MapWidth, MapHeight));
switch (EditManager.Get().Mode)
{
case EEditMode.Tiles:
UpdateHighlight(rect.X, rect.Y, rect.Width, rect.Height);
break;
case EEditMode.Eraser:
UpdateHighlight(rect.X, rect.Y, 1, 1);
break;
case EEditMode.Fill:
UpdateHighlight(rect.X, rect.Y, 1, 1);
break;
}
}
//---------------------------------------------------------------------------
private void OnTilesetSelectionChanged(SelectionRect selection)
{
if (selection != null && selection.Width > 0 && selection.Height > 0)
{
HighlightImage = new WriteableBitmap(selection.Width * 32, selection.Height * 32, 96, 96, PixelFormats.Bgra32, null);
BitmapSource source = TilesetManager.Get().Tileset?.Source;
if (source != null)
{
Int32Rect targetRect = new Int32Rect(selection.X * 32, selection.Y * 32, selection.Width * 32, selection.Height * 32);
int bytesPerPixel = (source.Format.BitsPerPixel + 7) / 8;
int stride = bytesPerPixel * targetRect.Width;
byte[] data = new byte[stride * targetRect.Height];
TilesetManager.Get().Tileset.Source.CopyPixels(targetRect, data, stride, 0);
Int32Rect sourceRect = new Int32Rect(0, 0, selection.Width * 32, selection.Height * 32);
HighlightImage.WritePixels(sourceRect, data, stride, 0);
}
}
OnPropertyChanged("HighlightImage");
}
//---------------------------------------------------------------------------
private void SetHighlight(int x, int y)
{
if (Highlight == null)
{
Highlight = new SelectionRect(x, y, 1, 1, Bounds);
}
else
{
Highlight.Update(x, y, 1, 1, Bounds);
}
Tileset tileset = TilesetManager.Get().Tileset;
if (tileset != null && tileset.PxTileWidth > 0 && tileset.PxTileHeight > 0)
{
Canvas.SetLeft(HighlightRect, Highlight.X * tileset.PxTileWidth);
Canvas.SetTop(HighlightRect, Highlight.Y * tileset.PxTileHeight);
HighlightRect.Width = tileset.PxTileWidth;
HighlightRect.Height = tileset.PxTileHeight;
}
OnPropertyChanged("Highlight");
}
//---------------------------------------------------------------------------
private void SetSelection(int x, int y, int width, int height)
{
if (Selection == null)
{
Selection = new SelectionRect(x, y, width, height, Bounds);
}
else
{
Selection.Update(x, y, width, height, Bounds);
}
Tileset tileset = TilesetManager.Get().Tileset;
if (tileset != null && tileset.PxTileWidth > 0 && tileset.PxTileHeight > 0)
{
Canvas.SetLeft(SelectionRect, Selection.X * tileset.PxTileWidth);
Canvas.SetTop(SelectionRect, Selection.Y * tileset.PxTileHeight);
SelectionRect.Width = Selection.Width * tileset.PxTileWidth;
SelectionRect.Height = Selection.Height * tileset.PxTileHeight;
}
OnPropertyChanged("Selection");
TilesetManager.Get().UpdateSelection();
}
//---------------------------------------------------------------------------
private void SetHighlight(Point point, bool isHovering)
{
if (isHovering)
{
int beginX = (int)(point.X / m_TileWidth);
int beginY = (int)(point.Y / m_TileHeight);
switch (EditManager.Get().Mode)
{
case EEditMode.Tiles:
SelectionRect selection = TilesetManager.Get().GetSelection();
SetHighlight(beginX, beginY, selection != null ? selection.Width : 1, selection != null ? selection.Height : 1, true);
break;
case EEditMode.Blocker:
SetHighlight(beginX, beginY, 1, 1, true);
break;
}
}
else
{
SetHighlight(0, 0, 0, 0, false);
}
}
//---------------------------------------------------------------------------
private void OnTilesetSelectionChanged(SelectionRect selection)
{
TilesetSelectionChanged?.Invoke(selection);
}
//---------------------------------------------------------------------------
public SelectionRect(int x, int y, int width, int height, SelectionRect bounds)
{
Update(x, y, width, height, bounds);
}