private static RectangleF CalculateBoundary(TmxMap tmxMap)
{
RectangleF rcMap = new RectangleF(Point.Empty, tmxMap.MapSizeInPixels());
// Take boundaries from object groups
var objBounds = from g in tmxMap.ObjectGroups
from o in g.Objects
where o.Visible == true
select o.GetWorldBounds();
// Take boundaries from objects embedded in tiles
var tileBounds = from layer in tmxMap.Layers
where layer.Visible == true
from y in Enumerable.Range(0, layer.Height)
from x in Enumerable.Range(0, layer.Width)
let tileId = layer.GetTileIdAt(x, y)
where tileId != 0
let tile = tmxMap.Tiles[tileId]
from o in tile.ObjectGroup.Objects
let bound = o.GetWorldBounds()
let point = TmxMath.TileCornerInScreenCoordinates(tmxMap, x, y)
select new RectangleF(bound.X + point.X, bound.Y + point.Y, bound.Width, bound.Height);
var allBounds = objBounds.Concat(tileBounds);
var union = allBounds.Aggregate(rcMap, RectangleF.Union);
// Inflate a tile size to make room for the grid
union.Inflate(tmxMap.TileWidth, tmxMap.TileHeight);
union.Inflate(PreviewImage.GridSize, PreviewImage.GridSize);
return(union);
}
private static void DrawGridHex(Graphics g, TmxMap tmxMap)
{
// Our collection of points to render
HashSet <Point> points = new HashSet <Point>();
// Note: borrowed heavily from Tiled source (HexagonalRenderer::drawGrid)
int tileWidth = tmxMap.TileWidth & ~1;
int tileHeight = tmxMap.TileHeight & ~1;
int sideLengthX = tmxMap.StaggerAxis == TmxMap.MapStaggerAxis.X ? tmxMap.HexSideLength : 0;
int sideLengthY = tmxMap.StaggerAxis == TmxMap.MapStaggerAxis.Y ? tmxMap.HexSideLength : 0;
int sideOffsetX = (tmxMap.TileWidth - sideLengthX) / 2;
int sideOffsetY = (tmxMap.TileHeight - sideLengthY) / 2;
int columnWidth = sideOffsetX + sideLengthX;
int rowHeight = sideOffsetY + sideLengthY;
bool staggerX = tmxMap.StaggerAxis == TmxMap.MapStaggerAxis.X;
// Determine the tile and pixel coordinates to start at
Point startTile = new Point(0, 0);
Point startPos = TmxMath.TileCornerInScreenCoordinates(tmxMap, startTile.X, startTile.Y);
Point[] oct = new Point[8]
{
new Point(0, tileHeight - sideOffsetY),
new Point(0, sideOffsetY),
new Point(sideOffsetX, 0),
new Point(tileWidth - sideOffsetX, 0),
new Point(tileWidth, sideOffsetY),
new Point(tileWidth, tileHeight - sideOffsetY),
new Point(tileWidth - sideOffsetX, tileHeight),
new Point(sideOffsetX, tileHeight)
};
if (staggerX)
{
// Odd row shifting is applied in the rendering loop, so un-apply it here
if (TmxMath.DoStaggerX(tmxMap, startTile.X))
{
startPos.Y -= rowHeight;
}
for (; startTile.X < GetMaxTilesWide(tmxMap); startTile.X++)
{
Point rowTile = startTile;
Point rowPos = startPos;
if (TmxMath.DoStaggerX(tmxMap, startTile.X))
{
rowPos.Y += rowHeight;
}
for (; rowTile.Y < GetMaxTilesHigh(tmxMap); rowTile.Y++)
{
points.Add(TmxMath.AddPoints(rowPos, oct[1]));
points.Add(TmxMath.AddPoints(rowPos, oct[2]));
points.Add(TmxMath.AddPoints(rowPos, oct[3]));
points.Add(TmxMath.AddPoints(rowPos, oct[4]));
bool isStaggered = TmxMath.DoStaggerX(tmxMap, startTile.X);
bool lastRow = rowTile.Y == tmxMap.Height - 1;
bool lastColumn = rowTile.X == tmxMap.Width - 1;
bool bottomLeft = rowTile.X == 0 || (lastRow && isStaggered);
bool bottomRight = lastColumn || (lastRow && isStaggered);
if (bottomRight)
{
points.Add(TmxMath.AddPoints(rowPos, oct[5]));
points.Add(TmxMath.AddPoints(rowPos, oct[6]));
}
if (lastRow)
{
points.Add(TmxMath.AddPoints(rowPos, oct[6]));
points.Add(TmxMath.AddPoints(rowPos, oct[7]));
}
if (bottomLeft)
{
points.Add(TmxMath.AddPoints(rowPos, oct[7]));
points.Add(TmxMath.AddPoints(rowPos, oct[0]));
}
rowPos.Y += tileHeight + sideLengthY;
}
startPos.X += columnWidth;
}
}
else
{
// Odd row shifting is applied in the rendering loop, so un-apply it here
if (TmxMath.DoStaggerY(tmxMap, startTile.Y))
{
startPos.X -= columnWidth;
}
for (; startTile.Y < tmxMap.Height; startTile.Y++)
{
Point rowTile = startTile;
Point rowPos = startPos;
if (TmxMath.DoStaggerY(tmxMap, startTile.Y))
{
rowPos.X += columnWidth;
}
for (; rowTile.X < tmxMap.Width; rowTile.X++)
{
points.Add(TmxMath.AddPoints(rowPos, oct[0]));
points.Add(TmxMath.AddPoints(rowPos, oct[1]));
points.Add(TmxMath.AddPoints(rowPos, oct[2]));
points.Add(TmxMath.AddPoints(rowPos, oct[3]));
points.Add(TmxMath.AddPoints(rowPos, oct[4]));
bool isStaggered = TmxMath.DoStaggerY(tmxMap, startTile.Y);
bool lastRow = rowTile.Y == tmxMap.Height - 1;
bool lastColumn = rowTile.Y == tmxMap.Width - 1;
bool bottomLeft = lastRow || (rowTile.X == 0 && !isStaggered);
bool bottomRight = lastRow || (lastColumn && isStaggered);
if (lastColumn)
{
points.Add(TmxMath.AddPoints(rowPos, oct[4]));
points.Add(TmxMath.AddPoints(rowPos, oct[5]));
}
if (bottomRight)
{
points.Add(TmxMath.AddPoints(rowPos, oct[5]));
points.Add(TmxMath.AddPoints(rowPos, oct[6]));
}
if (bottomLeft)
{
points.Add(TmxMath.AddPoints(rowPos, oct[7]));
points.Add(TmxMath.AddPoints(rowPos, oct[0]));
}
rowPos.X += tileWidth + sideLengthX;
}
startPos.Y += rowHeight;
}
}
foreach (var p in points)
{
RectangleF rc = new RectangleF(p.X, p.Y, PreviewImage.GridSize, PreviewImage.GridSize);
rc.Offset(-PreviewImage.GridSize * 0.5f, -PreviewImage.GridSize * 0.5f);
g.DrawRectangle(Pens.Black, rc.X, rc.Y, rc.Width, rc.Height);
}
}
private static void DrawTilesInTileLayer(Graphics g, TmxMap tmxMap, TmxLayer layer)
{
// Set the opacity for the layer (Not supported on Mac builds)
#if !TILED2UNITY_MAC
ColorMatrix colorMatrix = new ColorMatrix();
colorMatrix.Matrix33 = layer.Opacity;
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
#endif
// The range of x and y depends on the render order of the tiles
// By default we draw right and down but may reverse the tiles we visit
var range_x = Enumerable.Range(0, GetMaxTilesWide(layer));
var range_y = Enumerable.Range(0, GetMaxTilesHigh(layer));
if (tmxMap.DrawOrderHorizontal == -1)
{
range_x = range_x.Reverse();
}
if (tmxMap.DrawOrderVertical == -1)
{
range_y = range_y.Reverse();
}
// Visit the tiles we are going to draw
var tiles = from y in range_y
from x in range_x
let rawTileId = layer.GetRawTileIdAt(x, y)
let tileId = layer.GetTileIdAt(x, y)
where tileId != 0
let tile = tmxMap.Tiles[tileId]
// Support for animated tiles. Just show the first frame of the animation.
let frame = tmxMap.Tiles[tile.Animation.Frames[0].GlobalTileId]
select new
{
Tile = frame,
Position = TmxMath.TileCornerInScreenCoordinates(tmxMap, x, y),
Bitmap = frame.TmxImage.ImageBitmap,
IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
};
PointF[] destPoints = new PointF[4];
PointF[] destPoints3 = new PointF[3];
foreach (var t in tiles)
{
PointF location = t.Position;
// Individual tiles may be larger than the given tile size of the overall map
location.Y = (t.Position.Y - t.Tile.TileSize.Height) + tmxMap.TileHeight;
// Take tile offset into account
location.X += t.Tile.Offset.X;
location.Y += t.Tile.Offset.Y;
// Make up the 'quad' of texture points and transform them
PointF center = new PointF(t.Tile.TileSize.Width * 0.5f, t.Tile.TileSize.Height * 0.5f);
destPoints[0] = new Point(0, 0);
destPoints[1] = new Point(t.Tile.TileSize.Width, 0);
destPoints[2] = new Point(t.Tile.TileSize.Width, t.Tile.TileSize.Height);
destPoints[3] = new Point(0, t.Tile.TileSize.Height);
// Transform the points based on our flipped flags
TmxMath.TransformPoints(destPoints, center, t.IsFlippedDiagnoally, t.IsFlippedHorizontally, t.IsFlippedVertically);
// Put the destination points back into world space
TmxMath.TranslatePoints(destPoints, location);
// Stupid DrawImage function only takes 3 destination points otherwise it throws an exception
destPoints3[0] = destPoints[0];
destPoints3[1] = destPoints[1];
destPoints3[2] = destPoints[3];
// Draw the tile
Rectangle source = new Rectangle(t.Tile.LocationOnSource, t.Tile.TileSize);
#if !TILED2UNITY_MAC
g.DrawImage(t.Bitmap, destPoints3, source, GraphicsUnit.Pixel, imageAttributes);
#else
g.DrawImage(t.Bitmap, destPoints3, source, GraphicsUnit.Pixel);
#endif
}
}
private static SKRect CalculateBoundary(TmxMap tmxMap)
{
SKRect rcMap = SKRect.Create(0, 0, tmxMap.MapSizeInPixels.Width, tmxMap.MapSizeInPixels.Height);
// Any tile layers in the map can be offset
var tileLayerBounds = from layer in tmxMap.EnumerateTileLayers()
where layer.Visible == true
let offset = layer.GetCombinedOffset()
select SKRect.Create(offset.X, offset.Y, rcMap.Size.Width, rcMap.Size.Height);
// Take boundaries from object groups
var objBounds = from g in tmxMap.EnumerateObjectLayers()
from o in g.Objects
where o.Visible == true
let b = o.GetOffsetWorldBounds()
select SKRect.Create(b.X, b.Y, b.Width, b.Height);
// Take boundaries from objects embedded in tiles
var tileBounds = from layer in tmxMap.EnumerateTileLayers()
where layer.Visible == true
from y in Enumerable.Range(0, layer.Height)
from x in Enumerable.Range(0, layer.Width)
let tileId = layer.GetTileIdAt(x, y)
where tileId != 0
let tile = tmxMap.Tiles[tileId]
from o in tile.ObjectGroup.Objects
let bound = o.GetOffsetWorldBounds()
let point = TmxMath.TileCornerInScreenCoordinates(tmxMap, x, y)
select SKRect.Create(bound.X + point.X, bound.Y + point.Y, bound.Width, bound.Height);
var allBounds = tileLayerBounds.Concat(objBounds).Concat(tileBounds);
var union = allBounds.Aggregate(rcMap, SKRect.Union);
// Inflate a tile size to make room for the grid
union.Inflate(tmxMap.TileWidth, tmxMap.TileHeight);
union.Inflate(PreviewImage.GridSize, PreviewImage.GridSize);
return(union);
}