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using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization;
using System.Xml;
using System.Xml.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
namespace MonoGameLibrary.Graphics;
public class TextureAtlas
{
private Dictionary<string, TextureRegion> _regions;
public Texture2D Texture { get; set; }
public TextureAtlas()
{
_regions = [];
}
public TextureAtlas(Texture2D texture)
{
Texture = texture;
_regions = [];
}
public void AddRegion(string name, int x, int y, int width, int height)
{
TextureRegion region = new TextureRegion(Texture, x, y, width, height);
_regions.Add(name, region);
}
public TextureRegion GetRegion(string name)
{
return _regions[name];
}
public bool RemoveRegion(string name)
{
return _regions.Remove(name);
}
public void Clear()
{
_regions.Clear();
}
public static TextureAtlas FromFile(ContentManager content, string fileName)
{
TextureAtlas atlas = new TextureAtlas();
string filePath = Path.Combine(content.RootDirectory, fileName);
using (Stream stream = TitleContainer.OpenStream(filePath))
{
using (XmlReader reader = XmlReader.Create(stream))
{
XDocument doc = XDocument.Load(reader);
XElement root = doc.Root;
string texturePath = root.Element("Texture").Value;
atlas.Texture = content.Load<Texture2D>(texturePath);
var regions = root.Element("Regions")?.Elements("Region");
if (regions != null)
{
foreach (var region in regions)
{
string name = region.Attribute("name")?.Value;
int x = int.Parse(region.Attribute("x")?.Value ?? "0");
int y = int.Parse(region.Attribute("y")?.Value ?? "0");
int width = int.Parse(region.Attribute("width")?.Value ?? "0");
int height = int.Parse(region.Attribute("height")?.Value ?? "0");
if (!string.IsNullOrEmpty(name))
{
atlas.AddRegion(name, x, y, width, height);
}
}
}
}
}
return atlas;
}
}
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