/// <summary>
/// Creates a Soft body from a .bxda file [NOT YET PROPERLY IMPLEMENTED?]
/// </summary>
/// <param name="filePath"></param>
/// <param name="worldInfo"></param>
public void CreateSoftBody(string filePath, SoftBodyWorldInfo worldInfo)
{
BXDAMesh mesh = new BXDAMesh();
mesh.ReadFromFile(filePath);
List <Vector3> verts = new List <Vector3>();
//Soft body construction
verts = mesh.AllColliderVertices().ToList();
SoftBody temp = SoftBodyHelpers.CreateFromConvexHull(worldInfo, verts.ToArray());
//BulletObject = temp;
}
/// <summary>
/// Turns a BXDA mesh into a CompoundShape centered around the origin
/// </summary>
/// <param name="mesh"></param>
/// <returns></returns>
private static CompoundShape GetShape(BXDAMesh mesh)
{
CompoundShape shape = new CompoundShape();
Vector3[] meshVertices = mesh.AllColliderVertices().ToArray();
for (int i = 0; i < mesh.colliders.Count; i++)
{
BXDAMesh.BXDASubMesh sub = mesh.colliders[i];
Vector3[] vertices = sub.GetVertexData();
StridingMeshInterface sMesh = MeshUtilities.CenteredBulletShapeFromSubMesh(sub);
//Add the shape at a location relative to the compound shape such that the compound shape is centered at (0, 0) but child shapes are properly placed
shape.AddChildShape(Matrix4.CreateTranslation(MeshUtilities.MeshCenterRelative(sub, mesh)), new ConvexTriangleMeshShape(sMesh));
Console.WriteLine("Successfully created and added sub shape");
}
return(shape);
}
/// <summary>
/// Gets the center of a mesh's vertices
/// </summary>
/// <param name="mesh"></param>
/// <returns></returns>
public static Vector3 MeshCenter(BXDAMesh mesh)
{
IEnumerable <Vector3> verts = mesh.AllColliderVertices();
return(verts.Aggregate(Vector3.Add) / verts.Count());
}
/// <summary>
/// Gets the center of a sub mesh relative to the entire BXDA mesh
/// </summary>
/// <param name="subMesh"></param>
/// <param name="vertices"></param>
/// <returns></returns>
public static Vector3 MeshCenterRelative(BXDAMesh.BXDASubMesh subMesh, BXDAMesh mesh)
{
return(MeshCenter(subMesh) - MeshCenter(mesh.AllColliderVertices()));
}
