private Mesh ReadShape(FileReader reader)
{
Mesh mesh = new Mesh();
ushort unk = reader.ReadUInt16();
ushort numPackets = reader.ReadUInt16();
uint packetOffset = reader.ReadUInt32() * 4;
using (reader.TemporarySeek(packetOffset, SeekOrigin.Begin))
{
for (int j = 0; j < numPackets; j++)
{
reader.SeekBegin(packetOffset + (j * 12));
Packet packet = new Packet()
{
Offset = reader.ReadUInt32() * 4,
Size = reader.ReadUInt32(),
Flags1 = reader.ReadByte(),
Flags2 = reader.ReadByte(),
MaterialColorIndex = reader.ReadSByte(),
TextureIndex = reader.ReadSByte(),
};
MeshGroup meshGroup = new MeshGroup()
{
Packet = packet,
TextureIndex = packet.TextureIndex,
};
mesh.Groups.Add(meshGroup);
// Console.WriteLine($"Material {packet.MaterialColorIndex} TextureIndex {packet.TextureIndex}");
// Console.WriteLine($"Flags1 {packet.Flags1 >> 4} {packet.Flags1 & 0xF} Flags2 {packet.Flags2}");
if (packet.MaterialColorIndex != -1)
{
using (reader.TemporarySeek(materialColorsOffset + (packet.MaterialColorIndex * 4), SeekOrigin.Begin)) {
meshGroup.Color = reader.ReadColor8RGBA();
}
}
DisplayListHelper.Config config = new DisplayListHelper.Config();
List <GXVertexLayout> layouts = new List <GXVertexLayout>();
if (packet.Flags2 != 3 && packet.Flags2 != 15 && packet.Flags2 != 16 &&
packet.Flags2 != 14 && packet.Flags2 != 0)
{
layouts.Add(new GXVertexLayout(
GXAttributes.PosNormMatrix,
GXComponentType.U8, GXAttributeType.INDEX8, 48));
}
if (packet.Flags2 == 18)
{
layouts.Add(new GXVertexLayout(
GXAttributes.Tex0Matrix,
GXComponentType.U8, GXAttributeType.INDEX8, 48));
}
if (packet.Flags2 == 19)
{
layouts.Add(new GXVertexLayout(
GXAttributes.Tex0Matrix,
GXComponentType.U8, GXAttributeType.INDEX8, 48));
layouts.Add(new GXVertexLayout(
GXAttributes.Tex1Matrix,
GXComponentType.U8, GXAttributeType.INDEX8, 48));
layouts.Add(new GXVertexLayout(
GXAttributes.Tex2Matrix,
GXComponentType.U8, GXAttributeType.INDEX8, 48));
}
layouts.Add(new GXVertexLayout(
GXAttributes.Position,
GXComponentType.S16, GXAttributeType.INDEX16, positionsOffset));
if (normalsoffset != 0)
{
layouts.Add(new GXVertexLayout(
GXAttributes.Normal,
GXComponentType.S16, GXAttributeType.INDEX16, normalsoffset));
}
if (packet.Flags2 >= 16)
{
layouts.Add(new GXVertexLayout(
GXAttributes.NormalBinormalTangent,
GXComponentType.S16, GXAttributeType.INDEX16, normalsoffset));
layouts.Add(new GXVertexLayout(
GXAttributes.NormalBinormalTangent,
GXComponentType.S16, GXAttributeType.INDEX16, normalsoffset));
}
if (packet.Flags2 == 14 || packet.Flags2 == 15)
{
layouts.Add(new GXVertexLayout(
GXAttributes.NormalBinormalTangent,
GXComponentType.S16, GXAttributeType.INDEX16, normalsoffset));
}
if (colorsOffset != 0 && packet.Flags2 != 0)
{
layouts.Add(new GXVertexLayout(
GXAttributes.Color0,
GXComponentType.RGBA4, GXAttributeType.INDEX16, colorsOffset));
}
if (texCoordsOffset != 0 && packet.Flags2 != 0)
{
layouts.Add(new GXVertexLayout(
GXAttributes.TexCoord0,
GXComponentType.S16, GXAttributeType.INDEX16, texCoordsOffset)
{
Divisor = 1024.0f,
});
}
if (packet.Flags2 == 16 || packet.Flags2 == 17 || packet.Flags2 == 19)
{
config.OpCodeShift = -2;
}
var displayListData = new SubStream(reader.BaseStream, packet.Offset, packet.Size);
meshGroup.Vertices.AddRange(DisplayListHelper.ReadDisplayLists(
displayListData, reader.BaseStream, layouts.ToArray(), config));
}
}
return(mesh);
}