protected virtual Image GenerateTileImage(int x, int y)
{
Room room = GetRoom(x, y);
Bitmap img = room.GetImage();
return(img);
}
protected override Image GenerateTileImage(int x, int y)
{
// Regenerate the "usedDungeonRooms" set when redrawing the whole
// image (assumed to be starting at 0,0)
if (roomsUsedInDungeons == null || (x == 0 && y == 0))
{
roomsUsedInDungeons = Project.GetRoomsUsedInDungeons();
}
Room room = GetRoom(x, y);
Bitmap orig = room.GetImage();
if (!DarkenUsedDungeonRooms || !roomsUsedInDungeons.Contains(room.Index))
{
return(orig);
}
Bitmap newImage = new Bitmap(orig.Width, orig.Height);
const float ratio = (float)1.0 / 4;
var matrix = new float[][] {
new float[] { ratio, 0, 0, 0, 0 },
new float[] { 0, ratio, 0, 0, 0 },
new float[] { 0, 0, ratio, 0, 0 },
new float[] { 0, 0, 0, 1, 0 },
new float[] { 0, 0, 0, 0, 1 }
};
var attributes = new ImageAttributes();
attributes.SetColorMatrix(new ColorMatrix(matrix));
using (Graphics g = Graphics.FromImage(newImage)) {
g.DrawImage(orig,
new Rectangle(0, 0, orig.Width, orig.Height),
0, 0, orig.Width, orig.Height,
GraphicsUnit.Pixel, attributes);
}
return(newImage);
}