private static M2 Transform(M2Model model, IEnumerable <int> indicies, MapDoodadDefinition mddf)
{
var currentM2 = new M2();
currentM2.Vertices.Clear();
currentM2.Indices.Clear();
var posX = (mddf.Position.X - TerrainConstants.CenterPoint) * -1;
var posY = (mddf.Position.Y - TerrainConstants.CenterPoint) * -1;
var origin = new Vector3(posX, posY, mddf.Position.Z);
// Create the scale matrix used in the following loop.
Matrix scaleMatrix;
Matrix.CreateScale(mddf.Scale, out scaleMatrix);
// Creation the rotations
var rotateZ = Matrix.CreateRotationZ(MathHelper.ToRadians(mddf.OrientationB + 180));
var rotateY = Matrix.CreateRotationY(MathHelper.ToRadians(mddf.OrientationA));
var rotateX = Matrix.CreateRotationX(MathHelper.ToRadians(mddf.OrientationC));
var worldMatrix = Matrix.Multiply(scaleMatrix, rotateZ);
worldMatrix = Matrix.Multiply(worldMatrix, rotateX);
worldMatrix = Matrix.Multiply(worldMatrix, rotateY);
for (var i = 0; i < model.BoundingVertices.Length; i++)
{
var position = model.BoundingVertices[i];
var normal = model.BoundingNormals[i];
// Scale and Rotate
Vector3 rotatedPosition;
Vector3.Transform(ref position, ref worldMatrix, out rotatedPosition);
Vector3 rotatedNormal;
Vector3.Transform(ref normal, ref worldMatrix, out rotatedNormal);
rotatedNormal.Normalize();
// Translate
Vector3 finalVector;
Vector3.Add(ref rotatedPosition, ref origin, out finalVector);
currentM2.Vertices.Add(finalVector);
}
currentM2.Indices.AddRange(indicies);
return(currentM2);
}
