private void UpdateCollisionData(MeshCollisionData data, float distance, CollisionResult result, MeshTriangle triangle)
{
if (!data.HasCollided ||
distance < data.CollisionDistance)
{
data.CollisionDistance = distance;
data.CollisionResult = result;
data.CollisionId = triangle.Id;
data.Triangle = triangle;
data.HasCollided = true;
}
}
private MeshCollisionResult CollideInParallel(IEnumerable<MeshTriangle> triangles, Vector3 point, Vector3 direction)
{
var data = new MeshCollisionData();
var lockingObject = new Mutex();
Parallel.ForEach(triangles, triangle =>
{
var result = CollideTriangleWithRay(triangle, point, direction);
if (!result.HasCollided)
return;
var distance = result.CollisionPoint.Distance(point);
var realTriangle = triangle.Translate(_mesh.Translation);
result.CollisionPoint += _mesh.Translation;
lock (lockingObject)
{
UpdateCollisionData(data, distance, result, realTriangle);
}
});
return data.GetCollisionResult();
}
private MeshCollisionResult CollideInSeries(IEnumerable<MeshTriangle> triangles, Vector3 point, Vector3 direction)
{
var data = new MeshCollisionData();
foreach (var triangle in triangles)
{
var result = CollideTriangleWithRay(triangle, point, direction);
if (!result.HasCollided)
continue;
var realTriangle = triangle.Translate(_mesh.Translation);
var distance = result.CollisionPoint.Distance(point);
result.CollisionPoint += _mesh.Translation;
result.CollisionMesh = _mesh;
UpdateCollisionData(data, distance, result, realTriangle);
}
return data.GetCollisionResult();
}