public static void Init()
{
Tiles = SpriteSet.FromDirectory("Tiles Sprite Set", Path.Combine(Content.Root, "spritesets", "tiles"), true, true);
Editor = SpriteSet.FromDirectory("Editor Sprite Set", Path.Combine(Content.Root, "spritesets", "editor"), true, false);
Player = SpriteSet.FromDirectory("Player Sprite Set", Path.Combine(Content.Root, "spritesets", "player"), true, false);
Common = SpriteSet.FromDirectory("Common Sprite Set", Path.Combine(Content.Root, "spritesets", "common"), true, false);
}
/// <summary>
/// Create a sprite
/// </summary>
/// <param name="name"></param>
/// <param name="spriteSet"></param>
/// <param name="rectangle"></param>
public Sprite(string name, SpriteSet spriteSet, ShaderProgram shaderProgram, Rectangle rectangle) : base(name, shaderProgram)
{
if (spriteSet.Texture == null)
{
throw new NullReferenceException("SpriteSet's texture is null");
}
SpriteSet = spriteSet;
TopLeft = rectangle.GetLeftTop();
Size = rectangle.GetSize();
TopLeftCoord = new Vector2 <float>(
(float)TopLeft.X / spriteSet.Texture.Dimensions[0].X,
1f - (float)TopLeft.Y / spriteSet.Texture.Dimensions[0].Y
);
SizeCoord = new Vector2 <float>(
(float)Size.X / spriteSet.Texture.Dimensions[0].X,
(float)Size.Y / -spriteSet.Texture.Dimensions[0].Y
);
}
/// <summary>
/// Create a SpriteSet from a directory
/// </summary>
/// <param name="name">SpriteSet name</param>
/// <param name="path">Directory path</param>
/// <param name="recursive">Whether to use a recursive file search</param>
public static SpriteSet FromDirectory(string name, string path, bool recursive, bool bufferSpriteEdges)
{
// Create bitmaps from .png files
var pngs = Directory.GetFiles(path, "*.png", recursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly);
var bitmaps = new Bitmap[pngs.Length];
for (var i = 0; i < pngs.Length; i++)
{
var file = pngs[i];
var fullPath = Path.Combine(path, file);
bitmaps[i] = (Bitmap)Image.FromFile(fullPath);
}
// Create an atlas of the bitmaps
var atlas = TextureAtlas.CreateBitmapAtlas(bitmaps, 1, out var regions, bufferSpriteEdges);
// Dispose the bitmaps
foreach (var bitmap in bitmaps)
{
bitmap.Dispose();
}
// Create a texture from the atlas
var tex = Texture2D.FromBitmap($"{name} Texture", atlas, true);
// Dispose the atlas
atlas.Dispose();
// Create default shader program
var program = ShaderProgram.Create($"{name} Shader Program");
using (var vert = Content.LoadShader(Path.Combine("shaders", "sprites.vert"), ShaderType.Vertex))
{
using (var frag = Content.LoadShader(Path.Combine("shaders", "sprites.frag"), ShaderType.Fragment))
{
program.AttachShaders(vert, frag);
program.Link();
program.DetachShaders(vert, frag);
}
}
program.EnableBlockCamera();
// Create a spriteset using the atlas texture
var spriteSet = new SpriteSet(name, tex);
// Add sprites to the spriteset using the bitmap file names and atlas regions
for (var i = 0; i < pngs.Length; i++)
{
var spriteName = Path.GetFileNameWithoutExtension(pngs[i]);
var sprite = spriteSet.SetSprite(spriteName, program, regions[i]);
var jsonFile = Path.ChangeExtension(pngs[i], "json");
if (File.Exists(jsonFile))
{
var json = JsonConvert.DeserializeObject <Dictionary <string, object> >(File.ReadAllText(jsonFile));
if (json.TryGetValue("origin", out var origin_obj))
{
var origin = (JArray)origin_obj;
sprite.Origin = new Vector2 <float>((float)origin[0], (float)origin[1]);
}
}
}
// Return the new SpriteSet
return(spriteSet);
}