public GifReader(string path, TiledImportData tiledData)
{
// Get all pixel data from imported GIF
Bitmap Gif = new Bitmap(path);
BitmapData bmpData = Gif.LockBits(new Rectangle(0, 0, Gif.Width, Gif.Height), ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed);
IntPtr ptr = bmpData.Scan0;
byte[] gifPixels = new byte[Gif.Width * Gif.Height];
System.Runtime.InteropServices.Marshal.Copy(ptr, gifPixels, 0, gifPixels.Length);
uint[] mapData = tiledData.mMapData;
int rows = (int)tiledData.mMapHeight;
int columns = (int)tiledData.mMapWidth;
int gifTileWidth = (int)tiledData.mTileWidth;
int gifTileHeight = (int)tiledData.mTileHeight;
int tileWidth = (int)tiledData.mTileViewer.ElementWidth;
int tileHeight = (int)tiledData.mTileViewer.ElementHeight;
bool swapAxes = (tiledData.mRotate & 1U) != 0;
bool reverseX = tiledData.mFlipX != (((tiledData.mRotate + 1U) & 2U) != 0U);
bool reverseY = tiledData.mFlipY != ((tiledData.mRotate & 2U) != 0U);
//Get a list of all non-blank tiles in the map
// TODO: Ensure no tile IDs in the map exceed the length of the project tiles
List <TileInfo> tileBuffer = new List <TileInfo>();
// filter out blank tiles
for (int n = 0; n < (rows * columns); n++)
{
if (mapData[n] != 0)
{
tileBuffer.Add(new TileInfo((uint)n, (mapData[n] - 1)));
}
}
// Check that there are no duplicate tiles in the Tiled map
var tileDuplicates = tileBuffer
.GroupBy(x => x)
.Where(g => g.Count() > 1)
.Select(y => y.Key)
.ToList();
if (tileDuplicates.Count != 0)
{
// Duplicate tiles found in map.
string duplicateString = "";
foreach (TileInfo duplicate in tileDuplicates)
{
duplicateString = duplicateString + Environment.NewLine + duplicate.ElementOffset;
}
MessageBox.Show((tileDuplicates.Count > 1 ? "Duplicate tile IDs found in map:" : "Duplicate tile ID found in map:") + Environment.NewLine + duplicateString, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
int[,] transform = new int[, ] {
{ swapAxes ? 0 : 1, swapAxes ? 1 : 0, 0 }, { swapAxes ? 1 : 0, swapAxes ? 0 : 1, 0 }, { 0, 0, 1 }
};
if (reverseX)
{
transform[0, 0] = -transform[0, 0];
transform[0, 1] = -transform[0, 1];
}
if (reverseY)
{
transform[1, 0] = -transform[1, 0];
transform[1, 1] = -transform[1, 1];
}
transform[0, 2] = (int)(reverseX ? (swapAxes ? tileHeight : tileWidth) : 0); // hopefully fixes import rotated tiles offset error
transform[1, 2] = (int)(reverseY ? (swapAxes ? tileWidth : tileHeight) : 0);
foreach (TileInfo tile in tileBuffer)
{
Rectangle rowStart = new Rectangle(
transform[0, 2],
transform[1, 2],
transform[0, 0] + transform[0, 1],
transform[1, 0] + transform[1, 1]);
if (rowStart.Width < 0)
{
rowStart.X += rowStart.Width;
rowStart.Width = -rowStart.Width;
}
if (rowStart.Height < 0)
{
rowStart.Y += rowStart.Height;
rowStart.Height = -rowStart.Height;
}
Point yStep = new Point(transform[0, 1], transform[1, 1]);
Point xStep = new Point(transform[0, 0], transform[1, 0]);
for (uint y = 0; y < tileHeight; y++, rowStart.Offset(yStep))
{
Rectangle pixel = rowStart;
for (uint x = 0; x < tileWidth; x++, pixel.Offset(xStep))
{
uint pixelValue = gifPixels[
((Gif.Width * gifTileHeight) * (tile.TiledMapOffset / columns))
+ (gifTileWidth * (tile.TiledMapOffset % columns))
+ (pixel.Y * Gif.Width)
+ pixel.X];
tiledData.mTileViewer.Elements[tile.ElementOffset].SetPixel(pixelValue, x, y);
}
}
}
tiledData.mTileViewer.RedrawElementView();
}
public GifWriter(TiledImportData tiledImportData)
{
mTiledData = tiledImportData;
}
