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 void DrawTilesInTileLayer(SKCanvas canvas, TmxMap tmxMap, TmxLayer layer)
{
using (SKPaint paint = new SKPaint())
{
// Set the opacity for the layer
paint.Color = SKColors.White.WithAlpha((byte)(layer.Opacity * byte.MaxValue));
// 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 = tmxMap.GetMapPositionAt(x, y, frame),
Bitmap = frame.TmxImage.ImageBitmap,
IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
};
foreach (var t in tiles)
{
PointF location = t.Position;
using (new SKAutoCanvasRestore(canvas))
{
bool flip_h = t.IsFlippedHorizontally;
bool flip_v = t.IsFlippedVertically;
bool flip_d = t.IsFlippedDiagnoally;
// Move to the center of the tile on location and perform and transforms
SKPoint center = new SKPoint(t.Tile.TileSize.Width * 0.5f, t.Tile.TileSize.Height * 0.5f);
canvas.Translate(center.X, center.Y);
canvas.Translate(location.X, location.Y);
// Flip transformations (logic taken from Tiled source: maprenderer.cpp)
{
// If we're flipping diagonally then rotate 90 degrees and reverse h/v flip flags
float rotate = 0;
if (flip_d)
{
rotate = 90;
flip_h = t.IsFlippedVertically;
flip_v = !t.IsFlippedHorizontally;
}
// Scale based on flip flags
float scale_x = flip_h ? -1.0f : 1.0f;
float scale_y = flip_v ? -1.0f : 1.0f;
canvas.Scale(scale_x, scale_y);
canvas.RotateDegrees(rotate);
}
// Move us back out of the center
canvas.Translate(-center.X, -center.Y);
// Draw the tile
SKRect dest = SKRect.Create(0, 0, t.Tile.TileSize.Width, t.Tile.TileSize.Height);
SKRect source = SKRect.Create(t.Tile.LocationOnSource.X, t.Tile.LocationOnSource.Y, t.Tile.TileSize.Width, t.Tile.TileSize.Height);
canvas.DrawBitmap(t.Bitmap, source, dest, paint);
}
}
}
}
