/* Exports the map to an image file. */
public static void ExportMap(Map map, String fileName)
{
// Create and configure the export progress window.
ExportProgressWindow exportWindow = new ExportProgressWindow();
exportWindow.GetProgressBar().Maximum = map.GetColumns() * map.GetRows();
exportWindow.GetProgressBar().Step = 1;
exportWindow.Show();
// Create an emtpy bitmap based on the dimentions of the supplied map.
Bitmap newBitmap = new Bitmap(map.GetColumns() * ImagePalette.IMAGE_SIZE,
map.GetRows() * ImagePalette.IMAGE_SIZE,
PixelFormat.Format32bppPArgb);
// Bytes to store the color value for each pixel's ARGB value.
byte A;
byte R;
byte G;
byte B;
// Create a temporary bitmap to copy pixels from.
Bitmap bottomImage;
Bitmap topImage;
/* Loop through every tile in the map, blend each of its pixels layers together
* and copy the new pixel to the composite image. */
// Columns ***************************************************
for (int i = 0; i < map.GetColumns(); i++)
{
// Rows ***************************************************
for (int j = 0; j < map.GetRows(); j++)
{
// Get the image for the floor layer
bottomImage = (Bitmap)map.GetTileImage(i, j, Map.LAYER.FLOOR).Clone();
// Loop through image layers **********************************
for (int z = 0; z < Map.NUMBER_OF_LAYERS; z++)
{
// Make sure there is another layer on top of this one before trying to check it.
if (z + 1 < Map.NUMBER_OF_LAYERS)
{
// Check if the next layer up has an image and assign it to the top image if there is.
if (!map.GetTiles()[i, j].IsTileLayerEmpty((Map.LAYER)z + 1))
{
// Make sure this creates a clone (copy) of the image. Not doing this created a bug previously.
topImage = (Bitmap)map.GetTileImage(i, j, (Map.LAYER)z + 1).Clone();
// Blend the pixels from the top and bottom images into a new composite pixel.
for (int x = 0; x < bottomImage.Width; x++)
{
for (int y = 0; y < bottomImage.Height; y++)
{
Color bottomColor = bottomImage.GetPixel(x, y);
Color topColor = topImage.GetPixel(x, y);
// Blend the pixel colors, taking the alpha channel into account. This is supposedly a popular equation to do so.
A = (byte)(topColor.A + (bottomColor.A * (255 - topColor.A) / 255));
R = (byte)((topColor.R * topColor.A / 255) + (bottomColor.R * bottomColor.A * (255 - topColor.A) / (255 * 255)));
G = (byte)((topColor.G * topColor.A / 255) + (bottomColor.G * bottomColor.A * (255 - topColor.A) / (255 * 255)));
B = (byte)((topColor.B * topColor.A / 255) + (bottomColor.B * bottomColor.A * (255 - topColor.A) / (255 * 255)));
// Create a new color object to store the composite pixel values
Color newColor = Color.FromArgb(A, R, G, B);
/* Replace the pixel on the bottom image with the new value. This is so we set up a "new" bottom image
* for the next layer to blend with. */
bottomImage.SetPixel(x, y, newColor);
}
}
}
}
}
// Set the pixel values on the composite image based on the new blended pixel values.
for (int a = 0; a < bottomImage.Width; a++)
{
for (int b = 0; b < bottomImage.Height; b++)
{
newBitmap.SetPixel((i * ImagePalette.IMAGE_SIZE) + a, (j * ImagePalette.IMAGE_SIZE) + b, bottomImage.GetPixel(a, b));
}
}
// This marks the completion of THIS tile's compositing. Increment the progress bar one step.
exportWindow.GetProgressBar().PerformStep();
exportWindow.Refresh();
}
}
newBitmap.Save(fileName, ImageFormat.Png);
exportWindow.Hide();
MessageBox.Show("Map Exported.");
}
/* Exports the map to an image file. */
public static void ExportMap(Map map, String fileName)
{
// Create and configure the export progress window.
ExportProgressWindow exportWindow = new ExportProgressWindow();
exportWindow.GetProgressBar().Maximum = map.GetColumns() * map.GetRows();
exportWindow.GetProgressBar().Step = 1;
exportWindow.Show();
// Create an emtpy bitmap based on the dimentions of the supplied map.
Bitmap newBitmap = new Bitmap(map.GetColumns() * ImagePalette.IMAGE_SIZE,
map.GetRows() * ImagePalette.IMAGE_SIZE,
PixelFormat.Format32bppPArgb);
// Bytes to store the color value for each pixel's ARGB value.
byte A;
byte R;
byte G;
byte B;
// Create a temporary bitmap to copy pixels from.
Bitmap bottomImage;
Bitmap topImage;
/* Loop through every tile in the map, blend each of its pixels layers together
* and copy the new pixel to the composite image. */
// Columns ***************************************************
for (int i = 0; i < map.GetColumns(); i++)
{
// Rows ***************************************************
for (int j = 0; j < map.GetRows(); j++)
{
// Get the image for the floor layer
bottomImage = (Bitmap)map.GetTileImage(i, j, Map.LAYER.FLOOR).Clone();
// Loop through image layers **********************************
for (int z = 0; z < Map.NUMBER_OF_LAYERS; z++)
{
// Make sure there is another layer on top of this one before trying to check it.
if (z + 1 < Map.NUMBER_OF_LAYERS)
{
// Check if the next layer up has an image and assign it to the top image if there is.
if (!map.GetTiles()[i, j].IsTileLayerEmpty((Map.LAYER)z + 1))
{
// Make sure this creates a clone (copy) of the image. Not doing this created a bug previously.
topImage = (Bitmap)map.GetTileImage(i, j, (Map.LAYER)z + 1).Clone();
// Blend the pixels from the top and bottom images into a new composite pixel.
for (int x = 0; x < bottomImage.Width; x++)
{
for (int y = 0; y < bottomImage.Height; y++)
{
Color bottomColor = bottomImage.GetPixel(x, y);
Color topColor = topImage.GetPixel(x, y);
// Blend the pixel colors, taking the alpha channel into account. This is supposedly a popular equation to do so.
A = (byte)(topColor.A + (bottomColor.A * (255 - topColor.A) / 255));
R = (byte)((topColor.R * topColor.A / 255) + (bottomColor.R * bottomColor.A * (255 - topColor.A) / (255 * 255)));
G = (byte)((topColor.G * topColor.A / 255) + (bottomColor.G * bottomColor.A * (255 - topColor.A) / (255 * 255)));
B = (byte)((topColor.B * topColor.A / 255) + (bottomColor.B * bottomColor.A * (255 - topColor.A) / (255 * 255)));
// Create a new color object to store the composite pixel values
Color newColor = Color.FromArgb(A, R, G, B);
/* Replace the pixel on the bottom image with the new value. This is so we set up a "new" bottom image
for the next layer to blend with. */
bottomImage.SetPixel(x, y, newColor);
}
}
}
}
}
// Set the pixel values on the composite image based on the new blended pixel values.
for (int a = 0; a < bottomImage.Width; a++)
for (int b = 0; b < bottomImage.Height; b++ )
newBitmap.SetPixel((i * ImagePalette.IMAGE_SIZE) + a, (j * ImagePalette.IMAGE_SIZE) + b, bottomImage.GetPixel(a,b));
// This marks the completion of THIS tile's compositing. Increment the progress bar one step.
exportWindow.GetProgressBar().PerformStep();
exportWindow.Refresh();
}
}
newBitmap.Save(fileName, ImageFormat.Png);
exportWindow.Hide();
MessageBox.Show("Map Exported.");
}
