/// <summary>
/// Converts the string of index (ex: "1/4/3") data into a VertexCombo.
/// </summary>
static VertexCombo MakeVertexCombo(string vertIndices)
{
VertexCombo ret = new VertexCombo();
string[] asParts = vertIndices.Split('/');
ret.aVertIndex = int.Parse(asParts[0]) - 1;
ret.bTextureIndex = int.Parse(asParts[1]) - 1;
ret.cNormalIndex = int.Parse(asParts[2]) - 1;
return(ret);
}
/// <summary>
/// Adds a line of triangle data to our in-memory data.
/// (ex: "1/1/1 2/4/9 8/4/2").
/// </summary>
/// <param name="lineParts"></param>
static void AddFace(string[] lineParts)
{
VertexCombo one = MakeVertexCombo(lineParts[1]);
VertexCombo two = MakeVertexCombo(lineParts[2]);
VertexCombo three = MakeVertexCombo(lineParts[3]);
addIndex(one);
addIndex(two);
addIndex(three);
}
/// <summary>
/// Detects if this VertexCombo has been seen before. If so, we just
/// use the index of the exising vertex. Otherwise we add this combo
/// and use its index instead.
/// </summary>
/// <param name="combo"></param>
static void addIndex(VertexCombo combo)
{
ushort index = (ushort)vertexCombos.IndexOf(combo);
if (index == unchecked ((ushort)-1))
{
vertexCombos.Add(combo);
index = (ushort)(vertexCombos.Count - 1);
}
indices.Add(index);
}
public override bool Equals(object obj)
{
VertexCombo other = obj as VertexCombo;
return(other.aVertIndex == aVertIndex && other.bTextureIndex == bTextureIndex && other.cNormalIndex == cNormalIndex);
}
