/// <summary>
/// Initializes a new instance of the <see cref="SpriteFrame"/> class.
/// </summary>
/// <param name="description">The frame description.</param>
/// <param name="texture">The texture that contains the frame.</param>
internal SpriteFrame(SpriteFrameDescription description, Texture2D texture)
{
this.atlas = description.Atlas;
this.atlasCell = description.AtlasCell;
this.texture = description.Texture;
this.textureResource = texture;
this.x = description.X ?? 0;
this.y = description.Y ?? 0;
this.width = description.Width ?? 0;
this.height = description.Height ?? 0;
this.originX = description.Origin?.X ?? 0;
this.originY = description.Origin?.Y ?? 0;
this.duration = description.Duration ?? 0;
}
/// <summary>
/// Creates a sprite description from the specified input file.
/// </summary>
private static SpriteDescription CreateSpriteDescription(ContentManager manager, IContentProcessorMetadata metadata, XDocument input)
{
var spriteDescription = new SpriteDescription();
// Get all of the sprite's animation elements.
var animationElementsSingle = input.Root.Elements("Animation");
var animationElementsGroup = input.Root.Elements("Animations").SelectMany(x => x.Elements("Animation"));
var animationElements = Enumerable.Union(animationElementsSingle, animationElementsGroup).ToList();
var animationList = new List <SpriteAnimationDescription>();
// Process each animation.
foreach (var animationElement in animationElements)
{
var animationDesc = new SpriteAnimationDescription();
animationDesc.Name = (String)animationElement.Attribute("Name");
animationDesc.Repeat = (String)animationElement.Attribute("Repeat");
// Get all of the animation's frame elements.
var frameElementsSingle = animationElement.Elements("Frame");
var frameElementsGroup = animationElement.Elements("Frames").SelectMany(x => x.Elements("Frame"));
var frameElements = Enumerable.Union(frameElementsSingle, frameElementsGroup).ToList();
var frameList = new List <SpriteFrameDescription>();
animationDesc.Frames = new[] { new SpriteFrameBatchDescription()
{
Items = frameList
} };
// Process each frame.
foreach (var frameElement in frameElements)
{
var frameDescription = new SpriteFrameDescription();
frameDescription.Atlas = ResolveDependencyAssetPath(metadata, (String)GetFrameAttribute(frameElement, "Atlas"));
frameDescription.AtlasCell = (String)GetFrameAttribute(frameElement, "AtlasCell");
frameDescription.Texture = ResolveDependencyAssetPath(metadata, (String)GetFrameAttribute(frameElement, "Texture"));
frameDescription.X = (Int32?)GetFrameAttribute(frameElement, "X") ?? 0;
frameDescription.Y = (Int32?)GetFrameAttribute(frameElement, "Y") ?? 0;
frameDescription.Width = (Int32?)GetFrameAttribute(frameElement, "Width") ?? 0;
frameDescription.Height = (Int32?)GetFrameAttribute(frameElement, "Height") ?? 0;
frameDescription.Origin = new Point2(
(Int32?)GetFrameAttribute(frameElement, "OriginX") ?? 0,
(Int32?)GetFrameAttribute(frameElement, "OriginY") ?? 0);
frameDescription.Duration = (Int32?)GetFrameAttribute(frameElement, "Duration") ?? 0;
// VALIDATION: Both atlas and texture specified
if (frameDescription.Atlas != null && frameDescription.Texture != null)
{
throw new InvalidDataException(UltravioletStrings.SpriteContainsBothTextureAndAtlas);
}
// VALIDATION: Atlas cell, but no atlas
if (frameDescription.Atlas == null && frameDescription.AtlasCell != null)
{
throw new InvalidDataException(UltravioletStrings.SpriteContainsCellButNoAtlas);
}
// VALIDATION: Atlas, but no atlas cell
if (frameDescription.Atlas != null && frameDescription.AtlasCell == null)
{
throw new InvalidDataException(UltravioletStrings.SpriteContainsAtlasButNoCell);
}
frameList.Add(frameDescription);
}
// Get all of the animation's frame groups.
var frameGroupElementsSingle = animationElement.Elements("FrameGroup");
var frameGroupElementsGroup = animationElement.Elements("FrameGroups").SelectMany(x => x.Elements("FrameGroup"));
var frameGroupElements = Enumerable.Union(frameGroupElementsSingle, frameGroupElementsGroup).ToList();
var frameGroupList = new List <SpriteFrameGroupDescription>();
animationDesc.FrameGroups = new[] { new SpriteFrameGroupBatchDescription()
{
Items = frameGroupList
} };
// Process eachh frame group.
foreach (var frameGroupElement in frameGroupElements)
{
var frameGroupDescription = new SpriteFrameGroupDescription();
frameGroupDescription.Texture = ResolveDependencyAssetPath(metadata, (String)GetFrameAttribute(frameGroupElement, "Texture"));
frameGroupDescription.X = (Int32?)GetFrameAttribute(frameGroupElement, "AreaX") ?? 0;
frameGroupDescription.Y = (Int32?)GetFrameAttribute(frameGroupElement, "AreaY") ?? 0;
frameGroupDescription.Width = (Int32?)GetFrameAttribute(frameGroupElement, "AreaWidth") ?? 0;
frameGroupDescription.Height = (Int32?)GetFrameAttribute(frameGroupElement, "AreaHeight") ?? 0;
frameGroupDescription.FrameWidth = (Int32?)GetFrameAttribute(frameGroupElement, "FrameWidth") ?? 0;
frameGroupDescription.FrameHeight = (Int32?)GetFrameAttribute(frameGroupElement, "FrameHeight") ?? 0;
frameGroupDescription.FrameCount = (Int32?)GetFrameAttribute(frameGroupElement, "FrameCount") ?? 0;
frameGroupDescription.Origin = new Point2(
(Int32?)GetFrameAttribute(frameGroupElement, "OriginX") ?? 0,
(Int32?)GetFrameAttribute(frameGroupElement, "OriginX") ?? 0);
frameGroupDescription.Duration = (Int32?)GetFrameAttribute(frameGroupElement, "Duration") ?? 0;
frameGroupList.Add(frameGroupDescription);
}
animationList.Add(animationDesc);
}
spriteDescription.Animations = new[] { new SpriteAnimationBatchDescription()
{
Items = animationList.ToArray()
} };
return(spriteDescription);
}
/// <inheritdoc/>
public override Sprite ImportPreprocessed(ContentManager manager, IContentProcessorMetadata metadata, BinaryReader reader)
{
var description = new SpriteDescription();
var animationCount = reader.ReadInt32();
if (animationCount > 0)
{
var animations = new SpriteAnimationDescription[animationCount];
description.Animations = new[] { new SpriteAnimationBatchDescription() };
description.Animations[0].Items = animations;
for (int i = 0; i < animationCount; i++)
{
animations[i] = new SpriteAnimationDescription();
animations[i].Name = reader.ReadString();
animations[i].Repeat = reader.ReadString();
var groupCount = reader.ReadInt32();
var groups = new SpriteFrameGroupDescription[groupCount];
animations[i].FrameGroups = new[] { new SpriteFrameGroupBatchDescription() };
animations[i].FrameGroups[0].Items = groups;
for (int j = 0; j < groupCount; j++)
{
var group = new SpriteFrameGroupDescription();
group.Texture = reader.ReadString();
group.X = reader.ReadInt32();
group.Y = reader.ReadInt32();
group.Width = reader.ReadInt32();
group.Height = reader.ReadInt32();
group.FrameWidth = reader.ReadInt32();
group.FrameHeight = reader.ReadInt32();
group.FrameCount = reader.ReadInt32();
group.Origin = new Point2(
reader.ReadInt32(),
reader.ReadInt32());
group.Duration = reader.ReadInt32();
groups[j] = group;
}
var frameCount = reader.ReadInt32();
var frames = new SpriteFrameDescription[frameCount];
animations[i].Frames = new[] { new SpriteFrameBatchDescription() };
animations[i].Frames[0].Items = frames;
for (int j = 0; j < frameCount; j++)
{
var frame = new SpriteFrameDescription();
frame.Atlas = reader.ReadString();
frame.AtlasCell = reader.ReadString();
frame.Texture = reader.ReadString();
frame.X = reader.ReadInt32();
frame.Y = reader.ReadInt32();
frame.Width = reader.ReadInt32();
frame.Height = reader.ReadInt32();
frame.Origin = new Point2(
reader.ReadInt32(),
reader.ReadInt32());
frame.Duration = reader.ReadInt32();
frames[j] = frame;
}
}
}
return(CreateSprite(manager, metadata, description));
}
/// <summary>
/// Creates a sprite from the specified description.
/// </summary>
private static Sprite CreateSprite(ContentManager manager, IContentProcessorMetadata metadata, SpriteDescription input)
{
// Process sprite's animation data.
var animations = new List <SpriteAnimation>();
foreach (var animBatch in input.Animations)
{
foreach (var animDesc in animBatch.Items)
{
var animName = animDesc.Name;
var animRepeat = animDesc.Repeat == "none" ? SpriteAnimationRepeat.None : SpriteAnimationRepeat.Loop;
var animation = new SpriteAnimation(animName, animRepeat);
// Process the animation's frame groups.
foreach (var groupBatch in animDesc.FrameGroups ?? Enumerable.Empty <SpriteFrameGroupBatchDescription>())
{
foreach (var groupDesc in groupBatch.Items ?? Enumerable.Empty <SpriteFrameGroupDescription>())
{
metadata.AddAssetDependency(groupDesc.Texture);
var groupTexture = manager.Load <Texture2D>(groupDesc.Texture, metadata.AssetDensity, true, metadata.IsLoadedFromSolution);
var groupFrameCount = groupDesc.FrameCount ?? 0;
var groupFrameWidth = groupDesc.FrameWidth ?? 0;
var groupFrameHeight = groupDesc.FrameHeight ?? 0;
var groupAreaX = groupDesc.X ?? 0;
var groupAreaY = groupDesc.Y ?? 0;
var groupAreaWidth = groupDesc.Width ?? 0;
var groupAreaHeight = groupDesc.Height ?? 0;
var groupOrigin = groupDesc?.Origin ?? Point2.Zero;
var groupDuration = groupDesc?.Duration ?? 0;
var groupX = groupAreaX;
var groupY = groupAreaY;
for (int i = 0; i < groupFrameCount; i++)
{
if (groupAreaHeight > 0 && groupY + groupFrameHeight > groupY + groupAreaHeight)
{
break;
}
var frame = new SpriteFrameDescription();
frame.Texture = groupDesc.Texture;
frame.X = groupX;
frame.Y = groupY;
frame.Width = groupFrameWidth;
frame.Height = groupFrameHeight;
frame.Origin = groupOrigin;
frame.Duration = groupDuration;
animation.Frames.Add(new SpriteFrame(frame, groupTexture));
groupX += groupFrameWidth;
if (groupX + groupFrameWidth > groupAreaX + groupAreaWidth)
{
groupX = groupAreaX;
groupY = groupY + groupFrameHeight;
}
}
}
}
// Process the animation's frame data.
foreach (var frameBatch in animDesc.Frames ?? Enumerable.Empty <SpriteFrameBatchDescription>())
{
foreach (var frameDesc in frameBatch.Items ?? Enumerable.Empty <SpriteFrameDescription>())
{
var frame = new SpriteFrameDescription();
frame.Origin = frameDesc.Origin ?? Point2.Zero;
frame.Duration = frameDesc.Duration ?? 0;
if (!String.IsNullOrWhiteSpace(frameDesc.Atlas))
{
metadata.AddAssetDependency(frameDesc.Atlas);
var atlas = manager.Load <TextureAtlas>(frameDesc.Atlas, metadata.AssetDensity, true, metadata.IsLoadedFromSolution);
if (!atlas.ContainsCell(frameDesc.AtlasCell))
{
throw new InvalidDataException(UltravioletStrings.SpriteContainsInvalidAtlasCell.Format(frameDesc.AtlasCell));
}
var cell = atlas[frameDesc.AtlasCell];
frame.Atlas = frameDesc.Atlas;
frame.AtlasCell = frameDesc.AtlasCell;
frame.X = cell.X;
frame.Y = cell.Y;
frame.Width = cell.Width;
frame.Height = cell.Height;
animation.Frames.Add(new SpriteFrame(frame, atlas));
}
else
{
metadata.AddAssetDependency(frameDesc.Texture);
var texture = manager.Load <Texture2D>(frameDesc.Texture, metadata.AssetDensity, true, metadata.IsLoadedFromSolution);
frame.Texture = frameDesc.Texture;
frame.X = frameDesc.X ?? 0;
frame.Y = frameDesc.Y ?? 0;
frame.Width = frameDesc.Width ?? 0;
frame.Height = frameDesc.Height ?? 0;
animation.Frames.Add(new SpriteFrame(frame, texture));
}
}
}
// Initialize the animation's default controller.
animation.Controller.PlayAnimation(animation);
animations.Add(animation);
}
}
return(new Sprite(animations));
}