/// <summary>
/// Check if sphere collide with triangles
/// </summary>
/// <param name="vertices">List of triangles vertices</param>
/// <param name="boundingSphere">Sphere</param>
/// <param name="triangle">Return which triangle collide with the sphere</param>
/// <param name="light">Use light or full detection</param>
/// <returns>If sphere collide with triangle</returns>
public static bool IsSphereCollideWithTringles(List <Vector3> vertices,
BoundingSphere boundingSphere, out Triangle triangle, bool light)
{
bool res = false;
triangle = null;
for (int i = 0; i < vertices.Count; i += 3)
{
// Create triangle from the tree vertices
Triangle t = new Triangle(vertices[i], vertices[i + 1], vertices[i + 2]);
// Check if the sphere collide with the triangle
if (light)
{
res = TriangleSphereCollisionDetection.LightSphereTriangleCollision(ref boundingSphere, ref t);
}
else
{
res = TriangleSphereCollisionDetection.SphereTriangleCollision(ref boundingSphere, ref t);
}
if (res)
{
triangle = t;
return(res);
}
}
return(res);
}
/// <summary>
/// Check if sphere collide with triangles
/// </summary>
/// <param name="vertices">List of triangles vertices</param>
/// <param name="boundingSphere">Sphere</param>
/// <param name="triangles">Return which triangles collide with the sphere</param>
/// /// <param name="light">Use light or full detection</param>
/// <returns>If sphere collide with triangle</returns>
public static bool IsSphereCollideWithTringles(List <Vector3> vertices,
BoundingSphere boundingSphere, out IEnumerable <Triangle> triangles, bool light)
{
bool res = false;
List <Triangle> resualt = new List <Triangle>();
for (int i = 0; i < vertices.Count; i += 3)
{
// Create triangle from the tree vertices
Triangle t = new Triangle(vertices[i], vertices[i + 1], vertices[i + 2]);
// Check if the shpere collide with the triangle
bool tmp;
if (light)
{
tmp = TriangleSphereCollisionDetection.LightSphereTriangleCollision(ref boundingSphere, ref t);
}
else
{
tmp = TriangleSphereCollisionDetection.SphereTriangleCollision(ref boundingSphere, ref t);
}
if (tmp)
{
resualt.Add(t);
res = true;
}
}
triangles = resualt;
return(res);
}
/// <summary>
/// Calculate which part of the maze a bounding sphere collides with.
/// </summary>
/// <param name="BoundingSphere">The bounding sphere to use for the collision
/// check.</param>
/// <param name="intersectDetails">Will hold the result of the collision
/// check.</param>
/// <param name="light">Use light or full detection.</param>
public void GetCollisionDetails(BoundingSphere BoundingSphere, ref IntersectDetails intersectDetails,
bool light)
{
intersectDetails.IntersectWithGround =
TriangleSphereCollisionDetection.IsSphereCollideWithTringles(Ground,
BoundingSphere, out intersectDetails.IntersectedGroundTriangle, true);
intersectDetails.IntersectWithWalls =
TriangleSphereCollisionDetection.IsSphereCollideWithTringles(Walls,
BoundingSphere, out intersectDetails.IntersectedWallTriangle, light);
intersectDetails.IntersectWithFloorSides =
TriangleSphereCollisionDetection.IsSphereCollideWithTringles(FloorSides,
BoundingSphere, out intersectDetails.IntersectedFloorSidesTriangle, true);
}
