91 lines
2.7 KiB
C#
91 lines
2.7 KiB
C#
|
using System.Collections.ObjectModel;
|
||
|
|
using System.IO;
|
||
|
|
using UnityEngine;
|
||
|
|
|
||
|
|
namespace UnityEditor.U2D.Aseprite
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Structure for an entry in the color palette.
|
||
|
|
/// </summary>
|
||
|
|
public struct PaletteEntry
|
||
|
|
{
|
||
|
|
internal PaletteEntry(string name, Color32 color)
|
||
|
|
{
|
||
|
|
this.name = name;
|
||
|
|
this.color = color;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Name of the color.
|
||
|
|
/// </summary>
|
||
|
|
public string name { get; private set; }
|
||
|
|
/// <summary>
|
||
|
|
/// Color value.
|
||
|
|
/// </summary>
|
||
|
|
public Color32 color { get; private set; }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Parsed representation of an Aseprite Palette chunk.
|
||
|
|
/// </summary>
|
||
|
|
public class PaletteChunk : BaseChunk, IPaletteProvider
|
||
|
|
{
|
||
|
|
/// <inheritdoc />
|
||
|
|
public override ChunkTypes chunkType => ChunkTypes.Palette;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Number of entries in the palette.
|
||
|
|
/// </summary>
|
||
|
|
public uint noOfEntries { get; private set; }
|
||
|
|
/// <summary>
|
||
|
|
/// Index of the first color to change.
|
||
|
|
/// </summary>
|
||
|
|
public uint firstColorIndex { get; private set; }
|
||
|
|
/// <summary>
|
||
|
|
/// Index of the last color to change.
|
||
|
|
/// </summary>
|
||
|
|
public uint lastColorIndex { get; private set; }
|
||
|
|
/// <summary>
|
||
|
|
/// Array of palette entries.
|
||
|
|
/// </summary>
|
||
|
|
public ReadOnlyCollection<PaletteEntry> entries => System.Array.AsReadOnly(m_Entries);
|
||
|
|
PaletteEntry[] m_Entries;
|
||
|
|
|
||
|
|
internal PaletteChunk(uint chunkSize) : base(chunkSize) { }
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Read and store the chunk data.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="reader">The active binary reader of the file.</param>
|
||
|
|
protected override void InternalRead(BinaryReader reader)
|
||
|
|
{
|
||
|
|
noOfEntries = reader.ReadUInt32();
|
||
|
|
firstColorIndex = reader.ReadUInt32();
|
||
|
|
lastColorIndex = reader.ReadUInt32();
|
||
|
|
|
||
|
|
// Reserved bytes
|
||
|
|
for (var i = 0; i < 8; ++i)
|
||
|
|
reader.ReadByte();
|
||
|
|
|
||
|
|
m_Entries = new PaletteEntry[noOfEntries];
|
||
|
|
for (var i = 0; i < noOfEntries; ++i)
|
||
|
|
{
|
||
|
|
var entryFlag = reader.ReadUInt16();
|
||
|
|
var red = reader.ReadByte();
|
||
|
|
var green = reader.ReadByte();
|
||
|
|
var blue = reader.ReadByte();
|
||
|
|
var alpha = reader.ReadByte();
|
||
|
|
|
||
|
|
var color = new Color32(red, green, blue, alpha);
|
||
|
|
var name = "";
|
||
|
|
|
||
|
|
var hasName = entryFlag == 1;
|
||
|
|
if (hasName)
|
||
|
|
name = AsepriteUtilities.ReadString(reader);
|
||
|
|
|
||
|
|
m_Entries[i] = new PaletteEntry(name, color);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|