recrownedgtk/RecrownedAthenaeum/DataTypes/TextureAtlas.cs

123 lines
5.2 KiB
C#

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Newtonsoft.Json;
using RecrownedAthenaeum.DataTypes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
namespace RecrownedAthenaeum.DataTypes
{
public class TextureAtlas
{
private Texture2D texture;
private Dictionary<string, TextureAtlasRegion> dictionaryOfRegions = new Dictionary<string, TextureAtlasRegion>();
public TextureAtlasRegion this[string name] { get { if (name != null && dictionaryOfRegions.ContainsKey(name)) return dictionaryOfRegions[name]; else return null; } }
public TextureAtlas(Texture2D texture, TextureAtlasRegion[] regions)
{
this.texture = texture;
foreach (TextureAtlasRegion region in regions)
{
dictionaryOfRegions.Add(region.name, region);
}
}
public TextureAtlas(Texture2D texture, Dictionary<string, TextureAtlasRegion> dictionaryOfRegions)
{
this.texture = texture;
this.dictionaryOfRegions = dictionaryOfRegions;
}
/// <summary>
/// Draw the region given by a string in the atlas onto a destination rectangle.
/// </summary>
/// <param name="name">Name of region to draw.</param>
/// <param name="batch">SpriteBatch to be used.</param>
/// <param name="destination">The location to draw this region.</param>
/// <param name="color">Color to use.</param>
/// <param name="rotation">Rotation of texture drawn.</param>
/// <param name="origin">Origin used by rotation.</param>
public void Draw(string name, SpriteBatch batch, Rectangle destination, Color color = default(Color), float rotation = 0, Vector2 origin = new Vector2())
{
dictionaryOfRegions[name].Draw(batch, destination, color, rotation, origin);
}
/// <summary>
/// Creates or obtains a previously created texture of a region.
/// </summary>
/// <param name="name">Name of region.</param>
/// <param name="graphicsDevice">graphics device to be used.</param>
/// <returns>The texture from the region.</returns>
public Texture2D ObtainRegionAsTexture(string name, GraphicsDevice graphicsDevice)
{
return dictionaryOfRegions[name].AsTexture2D(graphicsDevice);
}
public class TextureAtlasRegion : IComparable<TextureAtlasRegion>, ISpecialDrawable, IDisposable
{
public readonly string name;
public readonly Rectangle sourceRectangle;
readonly NinePatch ninepatch;
Texture2D atlasTexture;
Texture2D regionTexture;
/// <summary>
/// A specified region in a texture atlas.
/// </summary>
/// <param name="name">Name of region.</param>
/// <param name="sourceRegion">The location of the region on the atlas.</param>
/// <param name="ninePatch">A <see cref="NinePatch"/> definition for the region.</param>
/// <param name="atlasTexture">The texture that holds the image data for the atlas.</param>
public TextureAtlasRegion(string name, Rectangle sourceRegion, NinePatch ninePatch, Texture2D atlasTexture)
{
this.atlasTexture = atlasTexture ?? throw new ArgumentNullException("Name parameters can be null.");
this.name = name ?? throw new ArgumentNullException("Name parameters can be null.");
this.sourceRectangle = sourceRegion;
this.ninepatch = ninePatch;
}
public void Draw(SpriteBatch batch, Rectangle destination, Color color, float rotation, Vector2 origin)
{
if (ninepatch != null)
{
ninepatch.Draw(batch, destination);
} else
{
batch.Draw(atlasTexture, destination, sourceRectangle, color, rotation, origin, SpriteEffects.None, 0f);
}
}
/// <summary>
/// Create or obtains a previously created texture of this region.
/// </summary>
/// <param name="graphicsDevice">The graphics device to use to create the texture.</param>
/// <returns>The texture of the region.</returns>
public Texture2D AsTexture2D(GraphicsDevice graphicsDevice)
{
if (regionTexture == null)
{
Color[] data = new Color[sourceRectangle.Width * sourceRectangle.Height];
regionTexture = new Texture2D(graphicsDevice, sourceRectangle.Width, sourceRectangle.Height);
atlasTexture.GetData(0, sourceRectangle, data, 0, sourceRectangle.Width * sourceRectangle.Height);
regionTexture.SetData(data);
}
return regionTexture;
}
public int CompareTo(TextureAtlasRegion other)
{
return name.CompareTo(other);
}
public void Dispose()
{
regionTexture?.Dispose();
}
}
}
}