public Bitmap CreateMissile(Bitmap itemBitmap, MissileDirection direction)
{
MissileBitmapTransformation transformation = _transformations[direction];
Bitmap targetBitmap = new Bitmap(Program.MaxTileSize.Width, Program.MaxTileSize.Height);
targetBitmap.SetResolution(itemBitmap.HorizontalResolution, itemBitmap.VerticalResolution);
if (itemBitmap.Size == Program.ItemSize)
{
using (Graphics gTargetBitmap = Graphics.FromImage(targetBitmap))
{
if (transformation.Rotation == 0f)
{
int x = (targetBitmap.Width - itemBitmap.Width) / 2;
int y = (targetBitmap.Height - itemBitmap.Height) / 2;
gTargetBitmap.DrawImage(itemBitmap, x, y);
if (transformation.FlipHorizontally)
{
targetBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
return(targetBitmap);
}
else
{
//Create square bitmap
int sideLength = Math.Min(Program.MaxTileSize.Width, Program.MaxTileSize.Height);
using (Bitmap centerBitmap = new Bitmap(sideLength, sideLength))
{
centerBitmap.SetResolution(itemBitmap.HorizontalResolution, itemBitmap.VerticalResolution);
using (Graphics gCenterBitmap = Graphics.FromImage(centerBitmap))
{
int x = (centerBitmap.Width - itemBitmap.Width) / 2;
int y = (centerBitmap.Height - itemBitmap.Height) / 2;
gCenterBitmap.DrawImage(itemBitmap, x, y);
}
RotateSquareBitmap(targetBitmap, gTargetBitmap, centerBitmap, transformation);
return(targetBitmap);
}
}
}
}
else if (itemBitmap.Size == Program.MaxTileSize)
{
using (Graphics gTargetBitmap = Graphics.FromImage(targetBitmap))
{
if (transformation.Rotation == 0f)
{
gTargetBitmap.DrawImage(itemBitmap, 0, 0);
if (transformation.FlipHorizontally)
{
targetBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
return(targetBitmap);
}
else
{
//Create square bitmap
int sideLength = Math.Min(Program.MaxTileSize.Width, Program.MaxTileSize.Height);
int x = (itemBitmap.Width - sideLength) / 2;
int y = (itemBitmap.Height - sideLength) / 2;
using (Bitmap centerBitmap = itemBitmap.Clone(new Rectangle(new Point(x, y), new Size(sideLength, sideLength)), itemBitmap.PixelFormat))
{
centerBitmap.SetResolution(itemBitmap.HorizontalResolution, itemBitmap.VerticalResolution);
using (Graphics gCenterBitmap = Graphics.FromImage(centerBitmap))
{
gCenterBitmap.DrawImage(itemBitmap, x, y);
}
RotateSquareBitmap(targetBitmap, gTargetBitmap, centerBitmap, transformation);
return(targetBitmap);
}
}
}
}
else
{
throw new Exception(string.Format("Image for missile creations is of wrong size: {0}x{1}.", itemBitmap.Width, itemBitmap.Height));
}
}
private void RotateSquareBitmap(Bitmap targetBitmap, Graphics gTargetBitmap, Bitmap centerBitmap, MissileBitmapTransformation transformation)
{
if (transformation.FlipHorizontally)
{
centerBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
using (Bitmap rotatedBitmap = new Bitmap(centerBitmap.Width, centerBitmap.Height))
{
rotatedBitmap.SetResolution(centerBitmap.HorizontalResolution, centerBitmap.VerticalResolution);
using (Graphics gRotatedBitmap = Graphics.FromImage(rotatedBitmap))
{
gRotatedBitmap.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
float middleX = (float)centerBitmap.Width / 2;
float middleY = (float)centerBitmap.Height / 2;
gRotatedBitmap.TranslateTransform(middleX, middleY);
gRotatedBitmap.RotateTransform(transformation.Rotation);
gRotatedBitmap.TranslateTransform(-1 * middleX, -1 * middleY);
gRotatedBitmap.DrawImage(centerBitmap, new Point(0, 0));
int x = (targetBitmap.Width - rotatedBitmap.Width) / 2;
int y = (targetBitmap.Height - rotatedBitmap.Height) / 2;
gTargetBitmap.DrawImage(rotatedBitmap, x, y);
}
}
}
