private void BuildWidthHeight(ref byte[] chunkData)
{
width_in_pixels = Read.WORD(ref chunkData);
height_in_pixels = Read.WORD(ref chunkData);
}
//Keep track of the start time of coroutine
//yield when the coroutine is taking too long.
public IEnumerator Load(string path)
{
LayerNames = new List <string>();
using UnityWebRequest w = UnityWebRequest.Get(path);
yield return(w.SendWebRequest());
data = w.downloadHandler.data;
if (data.Length < 128)
{
//Debug.Log("File too small.");
OnError?.Invoke("File too small.");
yield break;
}
//I want a perm object
asepriteObj = new AsepriteObj {
header = new Header()
};
asepriteObj.header.GenerateChunk(ref data);
if (!asepriteObj.header.headerHex.Equals(HEADER_MAGIC))
{
//Debug.Log("Only supports aseprite files.");
OnError?.Invoke("Only supports aseprite files.");
yield break;
}
while (data.Length > 1)
{
//Expect a frame
var bytesInFrame = Read.DWORD(ref data);
var magicNumber = Read.WORD(ref data);
var magicNumberHex = magicNumber.ToString("x");
//frameData bytesInFrame include the bytesInFrame and MagicNumber. Since we already have them adjust the length.
var frameData = Read.BYTEARRAY(ref data, (int)bytesInFrame - (Read.DWORD_LENGTH + Read.WORD_LENGTH));
//Making sure we have an aseprite file frame. This is guarenteed if a real aseprite file was loaded
if (magicNumberHex.Equals(FRAME_MAGIC))
{
Frame frame = new Frame(bytesInFrame, magicNumber, asepriteObj.header.color_depth)
{
width_in_pixels = asepriteObj.header.width_in_pixels,
height_in_pixels = asepriteObj.header.height_in_pixels
};
frame.GenerateChunk(ref frameData);
while (frameData.Length > 1)
{
var chunkSize = Read.DWORD(ref frameData);
var chunkType = Read.WORD(ref frameData);
var chunkTypeHex = chunkType.ToString("x");
var chunkData = Read.BYTEARRAY(ref frameData, (int)chunkSize - (Read.DWORD_LENGTH + Read.WORD_LENGTH));
Magic.TryGetValue(chunkTypeHex, out Action <byte[], Frame> Create);
Create(chunkData, frame);
}
asepriteObj.frames.Add(frame);
}
}
OnSuccess?.Invoke(asepriteObj);
}
public void GenerateChunk(ref byte[] chunkData)
{
number_of_packets = Read.WORD(ref chunkData);
old_palette_chunk_packets = new List <OldPaletteChunkPacket>();
for (int i = 0; i < number_of_packets; i++)
{
OldPaletteChunkPacket oldPaletteChunkPacket = new OldPaletteChunkPacket()
{
number_of_palette_entries = Read.BYTE(ref chunkData),
number_of_colors = Read.BYTE(ref chunkData),
colors = new List <Color32>()
};
Color32 color = new Color32(Read.BYTE(ref chunkData), Read.BYTE(ref chunkData), Read.BYTE(ref chunkData), 1);
oldPaletteChunkPacket.colors.Add(color);
}
}