/// <summary>
/// Create a parameter object from a file and address
/// </summary>
/// <param name="file">The file contents</param>
/// <param name="address">The address at which the parameter is located</param>
/// <returns>Any of the parameter types</returns>
public static GCParameter Read(byte[] file, int address)
{
GCParameter result = null;
ParameterType paramType = (ParameterType)BitConverter.ToUInt32(file, address);
switch (paramType)
{
case ParameterType.VtxAttrFmt:
result = new VtxAttrFmtParameter(GCVertexAttribute.Null);
break;
case ParameterType.IndexAttributeFlags:
result = new IndexAttributeParameter();
break;
case ParameterType.Lighting:
result = new LightingParameter();
break;
case ParameterType.BlendAlpha:
result = new BlendAlphaParameter();
break;
case ParameterType.AmbientColor:
result = new AmbientColorParameter();
break;
case ParameterType.Texture:
result = new TextureParameter();
break;
case ParameterType.Unknown_9:
result = new Unknown9Parameter();
break;
case ParameterType.TexCoordGen:
result = new TexCoordGenParameter();
break;
}
result.data = ByteConverter.ToUInt32(file, address + 4);
return(result);
}
/// <summary>
/// Creates meshinfo to render
/// </summary>
/// <param name="material">A material with the current material properties</param>
/// <param name="positions">The position data</param>
/// <param name="normals">The normal data</param>
/// <param name="colors">The color data</param>
/// <param name="uvs">The uv data</param>
/// <returns>A mesh info for the mesh</returns>
public MeshInfo Process(NJS_MATERIAL material, List <IOVtx> positions, List <IOVtx> normals, List <IOVtx> colors, List <IOVtx> uvs)
{
// setting the material properties according to the parameters
foreach (GCParameter param in parameters)
{
switch (param.type)
{
case ParameterType.BlendAlpha:
BlendAlphaParameter blend = param as BlendAlphaParameter;
material.SourceAlpha = blend.NJSourceAlpha;
material.DestinationAlpha = blend.NJDestAlpha;
break;
case ParameterType.AmbientColor:
AmbientColorParameter ambientCol = param as AmbientColorParameter;
material.DiffuseColor = ambientCol.AmbientColor.SystemCol;
break;
case ParameterType.Texture:
TextureParameter tex = param as TextureParameter;
material.TextureID = tex.TextureID;
material.FlipU = tex.Tile.HasFlag(GCTileMode.MirrorU);
material.FlipV = tex.Tile.HasFlag(GCTileMode.MirrorV);
material.ClampU = tex.Tile.HasFlag(GCTileMode.WrapU);
material.ClampV = tex.Tile.HasFlag(GCTileMode.WrapV);
// no idea why, but ok
material.ClampU &= tex.Tile.HasFlag(GCTileMode.Unk_1);
material.ClampV &= tex.Tile.HasFlag(GCTileMode.Unk_1);
break;
case ParameterType.TexCoordGen:
TexCoordGenParameter gen = param as TexCoordGenParameter;
material.EnvironmentMap = gen.TexGenSrc == GCTexGenSrc.Normal;
break;
}
}
// filtering out the double loops
List <Loop> corners = new List <Loop>();
List <Poly> polys = new List <Poly>();
foreach (GCPrimitive prim in primitives)
{
int j = 0;
ushort[] indices = new ushort[prim.loops.Count];
foreach (Loop l in prim.loops)
{
ushort t = (ushort)corners.FindIndex(x => x.Equals(l));
if (t == 0xFFFF)
{
indices[j] = (ushort)corners.Count;
corners.Add(l);
}
else
{
indices[j] = t;
}
j++;
}
// creating the polygons
if (prim.primitiveType == GCPrimitiveType.Triangles)
{
for (int i = 0; i < indices.Length; i += 3)
{
Triangle t = new Triangle();
t.Indexes[0] = indices[i];
t.Indexes[1] = indices[i + 1];
t.Indexes[2] = indices[i + 2];
polys.Add(t);
}
}
else if (prim.primitiveType == GCPrimitiveType.TriangleStrip)
{
polys.Add(new Strip(indices, false));
}
}
// creating the vertex data
VertexData[] vertData = new VertexData[corners.Count];
bool hasNormals = normals != null;
bool hasColors = colors != null;
bool hasUVs = uvs != null;
for (int i = 0; i < corners.Count; i++)
{
Loop l = corners[i];
vertData[i] = new SAModel.VertexData(
(Vector3)positions[l.PositionIndex],
hasNormals ? (Vector3)normals[l.NormalIndex] : new Vector3(0, 1, 0),
hasColors ? (Color)colors[l.Color0Index] : new Color(255, 255, 255, 255),
hasUVs ? (UV)uvs[l.UV0Index] : new UV(0, 0)
);
}
return(new MeshInfo(new NJS_MATERIAL(material), polys.ToArray(), vertData, hasUVs, hasColors));
}