public static void GetShapeMeshData(EntityCollidable collidable, List<VertexPositionNormalTexture> vertices, List<ushort> indices)
{
var shape = collidable.Shape as ConvexShape;
if (shape == null)
throw new ArgumentException("Wrong shape type for this helper.");
var vertexPositions = new BEPUutilities.Vector3[SampleDirections.Length];
for (int i = 0; i < SampleDirections.Length; ++i)
{
shape.GetLocalExtremePoint(SampleDirections[i], out vertexPositions[i]);
}
var hullIndices = new RawList<int>();
ConvexHullHelper.GetConvexHull(vertexPositions, hullIndices);
var hullTriangleVertices = new RawList<BEPUutilities.Vector3>();
foreach (int i in hullIndices)
{
hullTriangleVertices.Add(vertexPositions[i]);
}
for (ushort i = 0; i < hullTriangleVertices.Count; i += 3)
{
Vector3 normal = MathConverter.Convert(BEPUutilities.Vector3.Normalize(BEPUutilities.Vector3.Cross(hullTriangleVertices[i + 2] - hullTriangleVertices[i], hullTriangleVertices[i + 1] - hullTriangleVertices[i])));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i]), normal, new Vector2(0, 0)));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i + 1]), normal, new Vector2(1, 0)));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i + 2]), normal, new Vector2(0, 1)));
indices.Add(i);
indices.Add((ushort)(i + 1));
indices.Add((ushort)(i + 2));
}
}
//Vector3
public static Vector3 Convert(BEPUutilities.Vector3 bepuVector)
{
Vector3 toReturn;
toReturn.X = bepuVector.X;
toReturn.Y = bepuVector.Y;
toReturn.Z = bepuVector.Z;
return(toReturn);
}
public static BEPUutilities.Vector3[] Convert(Vector3[] xnaVectors)
{
var bepuVectors = new BEPUutilities.Vector3[xnaVectors.Length];
for (int i = 0; i < xnaVectors.Length; i++)
{
Convert(ref xnaVectors[i], out bepuVectors[i]);
}
return(bepuVectors);
}
public static void GetShapeMeshData(EntityCollidable collidable, List <VertexPositionNormalTexture> vertices, List <ushort> indices)
{
var shape = collidable.Shape as ConvexShape;
if (shape == null)
{
throw new ArgumentException("Wrong shape type for this helper.");
}
var vertexPositions = new BEPUutilities.Vector3[SampleDirections.Length];
for (int i = 0; i < SampleDirections.Length; ++i)
{
shape.GetLocalExtremePoint(SampleDirections[i], out vertexPositions[i]);
}
var hullIndices = new RawList <int>();
ConvexHullHelper.GetConvexHull(vertexPositions, hullIndices);
var hullTriangleVertices = new RawList <BEPUutilities.Vector3>();
foreach (int i in hullIndices)
{
hullTriangleVertices.Add(vertexPositions[i]);
}
for (ushort i = 0; i < hullTriangleVertices.Count; i += 3)
{
Vector3 normal = MathConverter.Convert(BEPUutilities.Vector3.Normalize(BEPUutilities.Vector3.Cross(hullTriangleVertices[i + 2] - hullTriangleVertices[i], hullTriangleVertices[i + 1] - hullTriangleVertices[i])));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i]), normal, new Vector2(0, 0)));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i + 1]), normal, new Vector2(1, 0)));
vertices.Add(new VertexPositionNormalTexture(MathConverter.Convert(hullTriangleVertices[i + 2]), normal, new Vector2(0, 1)));
indices.Add(i);
indices.Add((ushort)(i + 1));
indices.Add((ushort)(i + 2));
}
}
public static void Convert(ref Vector3 xnaVector, out BEPUutilities.Vector3 bepuVector)
{
bepuVector.X = xnaVector.X;
bepuVector.Y = xnaVector.Y;
bepuVector.Z = xnaVector.Z;
}
public static void Convert(ref BEPUutilities.Vector3 bepuVector, out Vector3 xnaVector)
{
xnaVector.X = bepuVector.X;
xnaVector.Y = bepuVector.Y;
xnaVector.Z = bepuVector.Z;
}
