public void TestPackEmptyAtlas()
{
TextureAtlas atlas = new TextureAtlas(AnimationSheetGenerator.GenerateDefaultAnimationExportSettings());
DefaultTexturePacker packer = new DefaultTexturePacker();
packer.Pack(atlas);
Assert.AreEqual(new Rectangle(0, 0, 1, 1), atlas.AtlasRectangle, "Packing an empty texture atlas should result in an atlas with an empty area");
}
public void TestPackEmptyFrames()
{
Animation anim = new Animation("TestAnim", 64, 64);
// Fill the animation with a few empty frames
anim.CreateFrame().ID = 1;
anim.CreateFrame().ID = 2;
TextureAtlas atlas = new TextureAtlas(AnimationSheetGenerator.GenerateDefaultAnimationExportSettings());
atlas.InsertFramesFromAnimation(anim);
DefaultTexturePacker packer = new DefaultTexturePacker();
packer.Pack(atlas);
Assert.AreEqual(new Rectangle(0, 0, 1, 1), atlas.AtlasRectangle, "Packing a texture atlas that contains empty frames should result in an atlas with a 1x1 area");
}
/// <summary>
/// Exports the given animations into an image sheet and returns the created sheet
/// </summary>
/// <param name="exportSettings">The export settings for the sheet</param>
/// <param name="anims">The list of animations to export</param>
/// <param name="name">The name for the generated texture atlas. Used for progress reports</param>
/// <param name="cancellationToken">A cancelation token that is passed to the exporters and can be used to cancel the export process mid-way</param>
/// <param name="progressHandler">Optional event handler for reporting the export progress</param>
/// <returns>An image sheet representing the animations passed</returns>
public async Task <TextureAtlas> GenerateAtlasFromAnimations(AnimationExportSettings exportSettings, Animation[] anims, string name = "", CancellationToken cancellationToken = new CancellationToken(), BundleExportProgressEventHandler progressHandler = null)
{
var atlas = new TextureAtlas(exportSettings, name);
//
// 1. Add the frames to the texture atlas
//
foreach (var anim in anims)
{
for (int i = 0; i < anim.FrameCount; i++)
{
atlas.InsertFrame(anim.GetFrameAtIndex(i));
}
}
//
// 2. Pack the frames into the atlas
//
ITexturePacker packer = new DefaultTexturePacker();
await packer.Pack(atlas, cancellationToken, progressHandler);
return(atlas);
}
