* 1.0.1.5 - 5/5/2012

* - Adding SplitFlat extension for Texture2D
This commit is contained in:
Nathan Adams 2012-05-05 19:34:37 -05:00
parent d68b7d5ad3
commit eceddb52af
2 changed files with 54 additions and 0 deletions

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@ -62,6 +62,12 @@
* 1.0.1.3 - 4/7/2012 * 1.0.1.3 - 4/7/2012
* - Adding a check in the AxiosTimer update to only tick if the game is active * - Adding a check in the AxiosTimer update to only tick if the game is active
* *
* 1.0.1.4 - 4/27/2012
* - Merging the new GSM
*
* 1.0.1.5 - 5/5/2012
* - Adding SplitFlat extension for Texture2D
*
*/ */
using System.Reflection; using System.Reflection;

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@ -132,6 +132,54 @@ namespace Axios.Engine.Extenions
return r; return r;
} }
/// http://gamedev.stackexchange.com/questions/11584/xna-splitting-one-large-texture-into-an-array-of-smaller-textures
/// <summary>
/// Splits a texture into an array of smaller textures of the specified size.
/// </summary>
/// <param name="original">The texture to be split into smaller textures</param>
/// <param name="partWidth">The width of each of the smaller textures that will be contained in the returned array.</param>
/// <param name="partHeight">The height of each of the smaller textures that will be contained in the returned array.</param>
public static Texture2D[] SplitFlat(this Texture2D original, int partWidth, int partHeight, out int xCount, out int yCount)
{
yCount = original.Height / partHeight; //+ (partHeight % original.Height == 0 ? 0 : 1);//The number of textures in each horizontal row
xCount = original.Width / partWidth; //+(partWidth % original.Width == 0 ? 0 : 1);//The number of textures in each vertical column
Texture2D[] r = new Texture2D[xCount * yCount];//Number of parts = (area of original) / (area of each part).
int dataPerPart = partWidth * partHeight;//Number of pixels in each of the split parts
//Get the pixel data from the original texture:
Color[] originalData = new Color[original.Width * original.Height];
original.GetData<Color>(originalData);
int index = 0;
for (int y = 0; y < yCount * partHeight; y += partHeight)
for (int x = 0; x < xCount * partWidth; x += partWidth)
{
//The texture at coordinate {x, y} from the top-left of the original texture
Texture2D part = new Texture2D(original.GraphicsDevice, partWidth, partHeight);
//The data for part
Color[] partData = new Color[dataPerPart];
//Fill the part data with colors from the original texture
for (int py = 0; py < partHeight; py++)
for (int px = 0; px < partWidth; px++)
{
int partIndex = px + py * partWidth;
//If a part goes outside of the source texture, then fill the overlapping part with Color.Transparent
if (y + py >= original.Height || x + px >= original.Width)
partData[partIndex] = Color.Transparent;
else
partData[partIndex] = originalData[(x + px) + (y + py) * original.Width];
}
//Fill the part with the extracted data
part.SetData<Color>(partData);
//Stick the part in the return array:
r[index++] = part;
}
//Return the array of parts.
return r;
}
/// http://forums.create.msdn.com/forums/t/79258.aspx /// http://forums.create.msdn.com/forums/t/79258.aspx
/// <summary> /// <summary>
/// Combines one texture with another /// Combines one texture with another