public override void OnImportAsset(AssetImportContext ctx)
{
// Load the raw file.
var file = PAFile.Load(ctx.assetPath);
var texture = new Texture2D(64, 64, TextureFormat.RGBA32, false);
texture.filterMode = FilterMode.Point;
texture.name = "atlas";
var textures = file.frames.Select(f => file.RenderFrame(f)).ToArray();
var rects = texture.PackTextures(textures, 1).Select(r => new Rect(r.xMin * texture.width, r.yMin * texture.height, r.width * texture.width, r.height * texture.height)).ToArray();
texture.Apply();
// TODO: look for duplicates by checking imageContentsHash for all textures
var sprites = new Dictionary <string, Sprite>();
for (int frameIndex = 0; frameIndex < file.frames.Count; frameIndex++)
{
var frame = file.frames[frameIndex];
var sprite = Sprite.Create(texture, rects[frameIndex], new Vector2(0.5f, 0.5f));
sprite.name = $"{frame.animation.name}.{frame.order:D03}";
ctx.AddObjectToAsset(frame.id, sprite);
sprites[frame.id] = sprite;
}
ctx.AddObjectToAsset("_atlas", texture);
var pixelArt = PixelArt.Create(
file.animations.Select(a => new PixelArtAnimation(
a.name,
file.frames.Where(f => f.animation == a).OrderBy(f => f.order).Select(f => new PixelArtAnimationFrame {
sprite = sprites[f.id]
}).ToArray()
)).ToArray(),
defaultAnimationIndex);
var defaultFrame = file.frames.Where(f => f.animation == file.animations[defaultAnimationIndex]).OrderBy(f => f.order).First();
#if false
var go = new GameObject();
var sr = go.AddComponent <SpriteRenderer>();
sr.sprite = sprites[defaultFrame.id];;
go.name = "Prefab";
var animator = go.AddComponent <PixelArtAnimator>();
animator.PixelArt = pixelArt;
animator.layers = new SpriteRenderer[] { sr };
ctx.AddObjectToAsset("prefab", go, PAUtils.LoadImage("PixelArtIcon.psd"));
#endif
pixelArt.name = "PixelArt";
ctx.AddObjectToAsset("pixelArt", pixelArt, PAUtils.LoadImage("PixelArtIcon.psd"));
//ctx.AddObjectToAsset("main", pixelArt, file.RenderFrame(file.frames[0]));
ctx.SetMainObject(pixelArt);
}
public override void OnEnable()
{
base.OnEnable();
layerMode = serializedObject.FindProperty("layerMode");
defaultAnimationIndex = serializedObject.FindProperty("defaultAnimationIndex");
_file = PAFile.Load((target as PixelArtImporter).assetPath);
_animationNames = _file.animations.Select(a => a.name).ToArray();
}
private static void CreatePixelArt(int width, int height)
{
// Generate a unique filename for the new artwork
var filename = Path.Combine(
Application.dataPath,
AssetDatabase.GenerateUniqueAssetPath($"{PAUtils.GetSelectedPathOrFallback()}/New PixelArt.pixelart").Substring(7));
// Create an empty file
var file = new PAFile();
file.width = width;
file.height = height;
file.AddFrame(file.AddAnimation("New Animation"));
file.AddLayer();
file.Save(filename);
AssetDatabase.Refresh();
}
public PAFrame(PAFile file)
{
File = file;
}
/// <summary>
/// Load a pixel edtior file from the given filename
/// </summary>
public static PAFile Load(string filename)
{
var file = new PAFile {
name = Path.GetFileNameWithoutExtension(filename)
};
using (var reader = new BinaryReader(File.OpenRead(filename)))
{
file.version = reader.ReadInt32();
file.width = reader.ReadInt32();
file.height = reader.ReadInt32();
var textureSize = 4 * file.width * file.height;
// Read the layers
var layerCount = reader.ReadInt32();
for (var layerIndex = 0; layerIndex < layerCount; layerIndex++)
{
var layer = new PALayer(file);
layer.id = reader.ReadString();
layer.name = reader.ReadString();
layer.opacity = reader.ReadSingle();
layer.order = reader.ReadInt32();
layer.visible = reader.ReadBoolean();
file.layers.Add(layer);
}
// Read the animations
var animationCount = reader.ReadInt32();
for (var animationIndex = 0; animationIndex < animationCount; animationIndex++)
{
var animation = new PAAnimation();
animation.id = reader.ReadString();
animation.name = reader.ReadString();
if (file.version < 3)
{
animation.fps = 10;
}
else
{
animation.fps = reader.ReadInt32();
}
file.animations.Add(animation);
}
// Read the frames
var frameCount = reader.ReadInt32();
for (var frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
var frame = new PAFrame(file);
frame.id = reader.ReadString();
frame.animation = file.FindAnimation(reader.ReadString());
frame.order = reader.ReadInt32();
file.frames.Add(frame);
}
// Read the textures
var imageCount = reader.ReadInt32();
for (var imageIndex = 0; imageIndex < imageCount; imageIndex++)
{
var image = new PAImage();
image.frame = file.FindFrame(reader.ReadString());
image.layer = file.FindLayer(reader.ReadString());
if (reader.ReadBoolean())
{
image.texture = new Texture2D(file.width, file.height, TextureFormat.RGBA32, false);
image.texture.LoadRawTextureData(reader.ReadBytes(textureSize));
image.texture.filterMode = FilterMode.Point;
image.texture.Apply();
}
file.images.Add(image);
}
}
return(file);
}
